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// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.


var Jupyter = Jupyter || {};

var jprop = function(name, module_path){
    Object.defineProperty(Jupyter, name, {
      get: function() { 
          console.warn('accessing `'+name+'` is deprecated. Use `requirejs("'+module_path+'")`');
          return requirejs(module_path); 
      },
      enumerable: true,
      configurable: false
    });
}

var jglobal = function(name, module_path){
    Object.defineProperty(Jupyter, name, {
      get: function() { 
          console.warn('accessing `'+name+'` is deprecated. Use `requirejs("'+module_path+'").'+name+'`');
          return requirejs(module_path)[name]; 
      },
      enumerable: true,
      configurable: false
    });
}

define('base/js/namespace',[],function(){
    "use strict";

    // expose modules
    
    jprop('utils','base/js/utils')
    
    //Jupyter.load_extensions = Jupyter.utils.load_extensions;
    // 
    jprop('security','base/js/security');
    jprop('keyboard','base/js/keyboard');
    jprop('dialog','base/js/dialog');
    jprop('mathjaxutils','notebook/js/mathjaxutils');


    //// exposed constructors
    jglobal('CommManager','services/kernels/comm')
    jglobal('Comm','services/kernels/comm')

    jglobal('NotificationWidget','base/js/notificationwidget');
    jglobal('Kernel','services/kernels/kernel');
    jglobal('Session','services/sessions/session');
    jglobal('LoginWidget','auth/js/loginwidget');
    jglobal('Page','base/js/page');

    // notebook
    jglobal('TextCell','notebook/js/textcell');
    jglobal('OutputArea','notebook/js/outputarea');
    jglobal('KeyboardManager','notebook/js/keyboardmanager');
    jglobal('Completer','notebook/js/completer');
    jglobal('Notebook','notebook/js/notebook');
    jglobal('Tooltip','notebook/js/tooltip');
    jglobal('Toolbar','notebook/js/toolbar');
    jglobal('SaveWidget','notebook/js/savewidget');
    jglobal('Pager','notebook/js/pager');
    jglobal('QuickHelp','notebook/js/quickhelp');
    jglobal('MarkdownCell','notebook/js/textcell');
    jglobal('RawCell','notebook/js/textcell');
    jglobal('Cell','notebook/js/cell');
    jglobal('MainToolBar','notebook/js/maintoolbar');
    jglobal('NotebookNotificationArea','notebook/js/notificationarea');
    jglobal('NotebookTour', 'notebook/js/tour');
    jglobal('MenuBar', 'notebook/js/menubar');

    // tree
    jglobal('SessionList','tree/js/sessionlist');

    Jupyter.version = "6.1.5";
    Jupyter._target = '_blank';

    return Jupyter;
});

// deprecated since 4.0, remove in 5+
var IPython = Jupyter;

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

// This is CodeMirror (https://codemirror.net), a code editor
// implemented in JavaScript on top of the browser's DOM.
//
// You can find some technical background for some of the code below
// at http://marijnhaverbeke.nl/blog/#cm-internals .

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
  typeof define === 'function' && define.amd ? define('codemirror/lib/codemirror',factory) :
  (global = global || self, global.CodeMirror = factory());
}(this, (function () { 'use strict';

  // Kludges for bugs and behavior differences that can't be feature
  // detected are enabled based on userAgent etc sniffing.
  var userAgent = navigator.userAgent;
  var platform = navigator.platform;

  var gecko = /gecko\/\d/i.test(userAgent);
  var ie_upto10 = /MSIE \d/.test(userAgent);
  var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent);
  var edge = /Edge\/(\d+)/.exec(userAgent);
  var ie = ie_upto10 || ie_11up || edge;
  var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]);
  var webkit = !edge && /WebKit\//.test(userAgent);
  var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent);
  var chrome = !edge && /Chrome\//.test(userAgent);
  var presto = /Opera\//.test(userAgent);
  var safari = /Apple Computer/.test(navigator.vendor);
  var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent);
  var phantom = /PhantomJS/.test(userAgent);

  var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent);
  var android = /Android/.test(userAgent);
  // This is woefully incomplete. Suggestions for alternative methods welcome.
  var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);
  var mac = ios || /Mac/.test(platform);
  var chromeOS = /\bCrOS\b/.test(userAgent);
  var windows = /win/i.test(platform);

  var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/);
  if (presto_version) { presto_version = Number(presto_version[1]); }
  if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
  // Some browsers use the wrong event properties to signal cmd/ctrl on OS X
  var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
  var captureRightClick = gecko || (ie && ie_version >= 9);

  function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }

  var rmClass = function(node, cls) {
    var current = node.className;
    var match = classTest(cls).exec(current);
    if (match) {
      var after = current.slice(match.index + match[0].length);
      node.className = current.slice(0, match.index) + (after ? match[1] + after : "");
    }
  };

  function removeChildren(e) {
    for (var count = e.childNodes.length; count > 0; --count)
      { e.removeChild(e.firstChild); }
    return e
  }

  function removeChildrenAndAdd(parent, e) {
    return removeChildren(parent).appendChild(e)
  }

  function elt(tag, content, className, style) {
    var e = document.createElement(tag);
    if (className) { e.className = className; }
    if (style) { e.style.cssText = style; }
    if (typeof content == "string") { e.appendChild(document.createTextNode(content)); }
    else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } }
    return e
  }
  // wrapper for elt, which removes the elt from the accessibility tree
  function eltP(tag, content, className, style) {
    var e = elt(tag, content, className, style);
    e.setAttribute("role", "presentation");
    return e
  }

  var range;
  if (document.createRange) { range = function(node, start, end, endNode) {
    var r = document.createRange();
    r.setEnd(endNode || node, end);
    r.setStart(node, start);
    return r
  }; }
  else { range = function(node, start, end) {
    var r = document.body.createTextRange();
    try { r.moveToElementText(node.parentNode); }
    catch(e) { return r }
    r.collapse(true);
    r.moveEnd("character", end);
    r.moveStart("character", start);
    return r
  }; }

  function contains(parent, child) {
    if (child.nodeType == 3) // Android browser always returns false when child is a textnode
      { child = child.parentNode; }
    if (parent.contains)
      { return parent.contains(child) }
    do {
      if (child.nodeType == 11) { child = child.host; }
      if (child == parent) { return true }
    } while (child = child.parentNode)
  }

  function activeElt() {
    // IE and Edge may throw an "Unspecified Error" when accessing document.activeElement.
    // IE < 10 will throw when accessed while the page is loading or in an iframe.
    // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.
    var activeElement;
    try {
      activeElement = document.activeElement;
    } catch(e) {
      activeElement = document.body || null;
    }
    while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)
      { activeElement = activeElement.shadowRoot.activeElement; }
    return activeElement
  }

  function addClass(node, cls) {
    var current = node.className;
    if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls; }
  }
  function joinClasses(a, b) {
    var as = a.split(" ");
    for (var i = 0; i < as.length; i++)
      { if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i]; } }
    return b
  }

  var selectInput = function(node) { node.select(); };
  if (ios) // Mobile Safari apparently has a bug where select() is broken.
    { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; }
  else if (ie) // Suppress mysterious IE10 errors
    { selectInput = function(node) { try { node.select(); } catch(_e) {} }; }

  function bind(f) {
    var args = Array.prototype.slice.call(arguments, 1);
    return function(){return f.apply(null, args)}
  }

  function copyObj(obj, target, overwrite) {
    if (!target) { target = {}; }
    for (var prop in obj)
      { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
        { target[prop] = obj[prop]; } }
    return target
  }

  // Counts the column offset in a string, taking tabs into account.
  // Used mostly to find indentation.
  function countColumn(string, end, tabSize, startIndex, startValue) {
    if (end == null) {
      end = string.search(/[^\s\u00a0]/);
      if (end == -1) { end = string.length; }
    }
    for (var i = startIndex || 0, n = startValue || 0;;) {
      var nextTab = string.indexOf("\t", i);
      if (nextTab < 0 || nextTab >= end)
        { return n + (end - i) }
      n += nextTab - i;
      n += tabSize - (n % tabSize);
      i = nextTab + 1;
    }
  }

  var Delayed = function() {
    this.id = null;
    this.f = null;
    this.time = 0;
    this.handler = bind(this.onTimeout, this);
  };
  Delayed.prototype.onTimeout = function (self) {
    self.id = 0;
    if (self.time <= +new Date) {
      self.f();
    } else {
      setTimeout(self.handler, self.time - +new Date);
    }
  };
  Delayed.prototype.set = function (ms, f) {
    this.f = f;
    var time = +new Date + ms;
    if (!this.id || time < this.time) {
      clearTimeout(this.id);
      this.id = setTimeout(this.handler, ms);
      this.time = time;
    }
  };

  function indexOf(array, elt) {
    for (var i = 0; i < array.length; ++i)
      { if (array[i] == elt) { return i } }
    return -1
  }

  // Number of pixels added to scroller and sizer to hide scrollbar
  var scrollerGap = 50;

  // Returned or thrown by various protocols to signal 'I'm not
  // handling this'.
  var Pass = {toString: function(){return "CodeMirror.Pass"}};

  // Reused option objects for setSelection & friends
  var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};

  // The inverse of countColumn -- find the offset that corresponds to
  // a particular column.
  function findColumn(string, goal, tabSize) {
    for (var pos = 0, col = 0;;) {
      var nextTab = string.indexOf("\t", pos);
      if (nextTab == -1) { nextTab = string.length; }
      var skipped = nextTab - pos;
      if (nextTab == string.length || col + skipped >= goal)
        { return pos + Math.min(skipped, goal - col) }
      col += nextTab - pos;
      col += tabSize - (col % tabSize);
      pos = nextTab + 1;
      if (col >= goal) { return pos }
    }
  }

  var spaceStrs = [""];
  function spaceStr(n) {
    while (spaceStrs.length <= n)
      { spaceStrs.push(lst(spaceStrs) + " "); }
    return spaceStrs[n]
  }

  function lst(arr) { return arr[arr.length-1] }

  function map(array, f) {
    var out = [];
    for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); }
    return out
  }

  function insertSorted(array, value, score) {
    var pos = 0, priority = score(value);
    while (pos < array.length && score(array[pos]) <= priority) { pos++; }
    array.splice(pos, 0, value);
  }

  function nothing() {}

  function createObj(base, props) {
    var inst;
    if (Object.create) {
      inst = Object.create(base);
    } else {
      nothing.prototype = base;
      inst = new nothing();
    }
    if (props) { copyObj(props, inst); }
    return inst
  }

  var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
  function isWordCharBasic(ch) {
    return /\w/.test(ch) || ch > "\x80" &&
      (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))
  }
  function isWordChar(ch, helper) {
    if (!helper) { return isWordCharBasic(ch) }
    if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true }
    return helper.test(ch)
  }

  function isEmpty(obj) {
    for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }
    return true
  }

  // Extending unicode characters. A series of a non-extending char +
  // any number of extending chars is treated as a single unit as far
  // as editing and measuring is concerned. This is not fully correct,
  // since some scripts/fonts/browsers also treat other configurations
  // of code points as a group.
  var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
  function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }

  // Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.
  function skipExtendingChars(str, pos, dir) {
    while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; }
    return pos
  }

  // Returns the value from the range [`from`; `to`] that satisfies
  // `pred` and is closest to `from`. Assumes that at least `to`
  // satisfies `pred`. Supports `from` being greater than `to`.
  function findFirst(pred, from, to) {
    // At any point we are certain `to` satisfies `pred`, don't know
    // whether `from` does.
    var dir = from > to ? -1 : 1;
    for (;;) {
      if (from == to) { return from }
      var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF);
      if (mid == from) { return pred(mid) ? from : to }
      if (pred(mid)) { to = mid; }
      else { from = mid + dir; }
    }
  }

  // BIDI HELPERS

  function iterateBidiSections(order, from, to, f) {
    if (!order) { return f(from, to, "ltr", 0) }
    var found = false;
    for (var i = 0; i < order.length; ++i) {
      var part = order[i];
      if (part.from < to && part.to > from || from == to && part.to == from) {
        f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr", i);
        found = true;
      }
    }
    if (!found) { f(from, to, "ltr"); }
  }

  var bidiOther = null;
  function getBidiPartAt(order, ch, sticky) {
    var found;
    bidiOther = null;
    for (var i = 0; i < order.length; ++i) {
      var cur = order[i];
      if (cur.from < ch && cur.to > ch) { return i }
      if (cur.to == ch) {
        if (cur.from != cur.to && sticky == "before") { found = i; }
        else { bidiOther = i; }
      }
      if (cur.from == ch) {
        if (cur.from != cur.to && sticky != "before") { found = i; }
        else { bidiOther = i; }
      }
    }
    return found != null ? found : bidiOther
  }

  // Bidirectional ordering algorithm
  // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
  // that this (partially) implements.

  // One-char codes used for character types:
  // L (L):   Left-to-Right
  // R (R):   Right-to-Left
  // r (AL):  Right-to-Left Arabic
  // 1 (EN):  European Number
  // + (ES):  European Number Separator
  // % (ET):  European Number Terminator
  // n (AN):  Arabic Number
  // , (CS):  Common Number Separator
  // m (NSM): Non-Spacing Mark
  // b (BN):  Boundary Neutral
  // s (B):   Paragraph Separator
  // t (S):   Segment Separator
  // w (WS):  Whitespace
  // N (ON):  Other Neutrals

  // Returns null if characters are ordered as they appear
  // (left-to-right), or an array of sections ({from, to, level}
  // objects) in the order in which they occur visually.
  var bidiOrdering = (function() {
    // Character types for codepoints 0 to 0xff
    var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
    // Character types for codepoints 0x600 to 0x6f9
    var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111";
    function charType(code) {
      if (code <= 0xf7) { return lowTypes.charAt(code) }
      else if (0x590 <= code && code <= 0x5f4) { return "R" }
      else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }
      else if (0x6ee <= code && code <= 0x8ac) { return "r" }
      else if (0x2000 <= code && code <= 0x200b) { return "w" }
      else if (code == 0x200c) { return "b" }
      else { return "L" }
    }

    var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
    var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;

    function BidiSpan(level, from, to) {
      this.level = level;
      this.from = from; this.to = to;
    }

    return function(str, direction) {
      var outerType = direction == "ltr" ? "L" : "R";

      if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false }
      var len = str.length, types = [];
      for (var i = 0; i < len; ++i)
        { types.push(charType(str.charCodeAt(i))); }

      // W1. Examine each non-spacing mark (NSM) in the level run, and
      // change the type of the NSM to the type of the previous
      // character. If the NSM is at the start of the level run, it will
      // get the type of sor.
      for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {
        var type = types[i$1];
        if (type == "m") { types[i$1] = prev; }
        else { prev = type; }
      }

      // W2. Search backwards from each instance of a European number
      // until the first strong type (R, L, AL, or sor) is found. If an
      // AL is found, change the type of the European number to Arabic
      // number.
      // W3. Change all ALs to R.
      for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {
        var type$1 = types[i$2];
        if (type$1 == "1" && cur == "r") { types[i$2] = "n"; }
        else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R"; } }
      }

      // W4. A single European separator between two European numbers
      // changes to a European number. A single common separator between
      // two numbers of the same type changes to that type.
      for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {
        var type$2 = types[i$3];
        if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1"; }
        else if (type$2 == "," && prev$1 == types[i$3+1] &&
                 (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1; }
        prev$1 = type$2;
      }

      // W5. A sequence of European terminators adjacent to European
      // numbers changes to all European numbers.
      // W6. Otherwise, separators and terminators change to Other
      // Neutral.
      for (var i$4 = 0; i$4 < len; ++i$4) {
        var type$3 = types[i$4];
        if (type$3 == ",") { types[i$4] = "N"; }
        else if (type$3 == "%") {
          var end = (void 0);
          for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {}
          var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
          for (var j = i$4; j < end; ++j) { types[j] = replace; }
          i$4 = end - 1;
        }
      }

      // W7. Search backwards from each instance of a European number
      // until the first strong type (R, L, or sor) is found. If an L is
      // found, then change the type of the European number to L.
      for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {
        var type$4 = types[i$5];
        if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L"; }
        else if (isStrong.test(type$4)) { cur$1 = type$4; }
      }

      // N1. A sequence of neutrals takes the direction of the
      // surrounding strong text if the text on both sides has the same
      // direction. European and Arabic numbers act as if they were R in
      // terms of their influence on neutrals. Start-of-level-run (sor)
      // and end-of-level-run (eor) are used at level run boundaries.
      // N2. Any remaining neutrals take the embedding direction.
      for (var i$6 = 0; i$6 < len; ++i$6) {
        if (isNeutral.test(types[i$6])) {
          var end$1 = (void 0);
          for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}
          var before = (i$6 ? types[i$6-1] : outerType) == "L";
          var after = (end$1 < len ? types[end$1] : outerType) == "L";
          var replace$1 = before == after ? (before ? "L" : "R") : outerType;
          for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; }
          i$6 = end$1 - 1;
        }
      }

      // Here we depart from the documented algorithm, in order to avoid
      // building up an actual levels array. Since there are only three
      // levels (0, 1, 2) in an implementation that doesn't take
      // explicit embedding into account, we can build up the order on
      // the fly, without following the level-based algorithm.
      var order = [], m;
      for (var i$7 = 0; i$7 < len;) {
        if (countsAsLeft.test(types[i$7])) {
          var start = i$7;
          for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}
          order.push(new BidiSpan(0, start, i$7));
        } else {
          var pos = i$7, at = order.length, isRTL = direction == "rtl" ? 1 : 0;
          for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {}
          for (var j$2 = pos; j$2 < i$7;) {
            if (countsAsNum.test(types[j$2])) {
              if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); at += isRTL; }
              var nstart = j$2;
              for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}
              order.splice(at, 0, new BidiSpan(2, nstart, j$2));
              at += isRTL;
              pos = j$2;
            } else { ++j$2; }
          }
          if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); }
        }
      }
      if (direction == "ltr") {
        if (order[0].level == 1 && (m = str.match(/^\s+/))) {
          order[0].from = m[0].length;
          order.unshift(new BidiSpan(0, 0, m[0].length));
        }
        if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
          lst(order).to -= m[0].length;
          order.push(new BidiSpan(0, len - m[0].length, len));
        }
      }

      return direction == "rtl" ? order.reverse() : order
    }
  })();

  // Get the bidi ordering for the given line (and cache it). Returns
  // false for lines that are fully left-to-right, and an array of
  // BidiSpan objects otherwise.
  function getOrder(line, direction) {
    var order = line.order;
    if (order == null) { order = line.order = bidiOrdering(line.text, direction); }
    return order
  }

  // EVENT HANDLING

  // Lightweight event framework. on/off also work on DOM nodes,
  // registering native DOM handlers.

  var noHandlers = [];

  var on = function(emitter, type, f) {
    if (emitter.addEventListener) {
      emitter.addEventListener(type, f, false);
    } else if (emitter.attachEvent) {
      emitter.attachEvent("on" + type, f);
    } else {
      var map = emitter._handlers || (emitter._handlers = {});
      map[type] = (map[type] || noHandlers).concat(f);
    }
  };

  function getHandlers(emitter, type) {
    return emitter._handlers && emitter._handlers[type] || noHandlers
  }

  function off(emitter, type, f) {
    if (emitter.removeEventListener) {
      emitter.removeEventListener(type, f, false);
    } else if (emitter.detachEvent) {
      emitter.detachEvent("on" + type, f);
    } else {
      var map = emitter._handlers, arr = map && map[type];
      if (arr) {
        var index = indexOf(arr, f);
        if (index > -1)
          { map[type] = arr.slice(0, index).concat(arr.slice(index + 1)); }
      }
    }
  }

  function signal(emitter, type /*, values...*/) {
    var handlers = getHandlers(emitter, type);
    if (!handlers.length) { return }
    var args = Array.prototype.slice.call(arguments, 2);
    for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); }
  }

  // The DOM events that CodeMirror handles can be overridden by
  // registering a (non-DOM) handler on the editor for the event name,
  // and preventDefault-ing the event in that handler.
  function signalDOMEvent(cm, e, override) {
    if (typeof e == "string")
      { e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; }
    signal(cm, override || e.type, cm, e);
    return e_defaultPrevented(e) || e.codemirrorIgnore
  }

  function signalCursorActivity(cm) {
    var arr = cm._handlers && cm._handlers.cursorActivity;
    if (!arr) { return }
    var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
    for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)
      { set.push(arr[i]); } }
  }

  function hasHandler(emitter, type) {
    return getHandlers(emitter, type).length > 0
  }

  // Add on and off methods to a constructor's prototype, to make
  // registering events on such objects more convenient.
  function eventMixin(ctor) {
    ctor.prototype.on = function(type, f) {on(this, type, f);};
    ctor.prototype.off = function(type, f) {off(this, type, f);};
  }

  // Due to the fact that we still support jurassic IE versions, some
  // compatibility wrappers are needed.

  function e_preventDefault(e) {
    if (e.preventDefault) { e.preventDefault(); }
    else { e.returnValue = false; }
  }
  function e_stopPropagation(e) {
    if (e.stopPropagation) { e.stopPropagation(); }
    else { e.cancelBubble = true; }
  }
  function e_defaultPrevented(e) {
    return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false
  }
  function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}

  function e_target(e) {return e.target || e.srcElement}
  function e_button(e) {
    var b = e.which;
    if (b == null) {
      if (e.button & 1) { b = 1; }
      else if (e.button & 2) { b = 3; }
      else if (e.button & 4) { b = 2; }
    }
    if (mac && e.ctrlKey && b == 1) { b = 3; }
    return b
  }

  // Detect drag-and-drop
  var dragAndDrop = function() {
    // There is *some* kind of drag-and-drop support in IE6-8, but I
    // couldn't get it to work yet.
    if (ie && ie_version < 9) { return false }
    var div = elt('div');
    return "draggable" in div || "dragDrop" in div
  }();

  var zwspSupported;
  function zeroWidthElement(measure) {
    if (zwspSupported == null) {
      var test = elt("span", "\u200b");
      removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
      if (measure.firstChild.offsetHeight != 0)
        { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); }
    }
    var node = zwspSupported ? elt("span", "\u200b") :
      elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
    node.setAttribute("cm-text", "");
    return node
  }

  // Feature-detect IE's crummy client rect reporting for bidi text
  var badBidiRects;
  function hasBadBidiRects(measure) {
    if (badBidiRects != null) { return badBidiRects }
    var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
    var r0 = range(txt, 0, 1).getBoundingClientRect();
    var r1 = range(txt, 1, 2).getBoundingClientRect();
    removeChildren(measure);
    if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)
    return badBidiRects = (r1.right - r0.right < 3)
  }

  // See if "".split is the broken IE version, if so, provide an
  // alternative way to split lines.
  var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) {
    var pos = 0, result = [], l = string.length;
    while (pos <= l) {
      var nl = string.indexOf("\n", pos);
      if (nl == -1) { nl = string.length; }
      var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
      var rt = line.indexOf("\r");
      if (rt != -1) {
        result.push(line.slice(0, rt));
        pos += rt + 1;
      } else {
        result.push(line);
        pos = nl + 1;
      }
    }
    return result
  } : function (string) { return string.split(/\r\n?|\n/); };

  var hasSelection = window.getSelection ? function (te) {
    try { return te.selectionStart != te.selectionEnd }
    catch(e) { return false }
  } : function (te) {
    var range;
    try {range = te.ownerDocument.selection.createRange();}
    catch(e) {}
    if (!range || range.parentElement() != te) { return false }
    return range.compareEndPoints("StartToEnd", range) != 0
  };

  var hasCopyEvent = (function () {
    var e = elt("div");
    if ("oncopy" in e) { return true }
    e.setAttribute("oncopy", "return;");
    return typeof e.oncopy == "function"
  })();

  var badZoomedRects = null;
  function hasBadZoomedRects(measure) {
    if (badZoomedRects != null) { return badZoomedRects }
    var node = removeChildrenAndAdd(measure, elt("span", "x"));
    var normal = node.getBoundingClientRect();
    var fromRange = range(node, 0, 1).getBoundingClientRect();
    return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1
  }

  // Known modes, by name and by MIME
  var modes = {}, mimeModes = {};

  // Extra arguments are stored as the mode's dependencies, which is
  // used by (legacy) mechanisms like loadmode.js to automatically
  // load a mode. (Preferred mechanism is the require/define calls.)
  function defineMode(name, mode) {
    if (arguments.length > 2)
      { mode.dependencies = Array.prototype.slice.call(arguments, 2); }
    modes[name] = mode;
  }

  function defineMIME(mime, spec) {
    mimeModes[mime] = spec;
  }

  // Given a MIME type, a {name, ...options} config object, or a name
  // string, return a mode config object.
  function resolveMode(spec) {
    if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
      spec = mimeModes[spec];
    } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
      var found = mimeModes[spec.name];
      if (typeof found == "string") { found = {name: found}; }
      spec = createObj(found, spec);
      spec.name = found.name;
    } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
      return resolveMode("application/xml")
    } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
      return resolveMode("application/json")
    }
    if (typeof spec == "string") { return {name: spec} }
    else { return spec || {name: "null"} }
  }

  // Given a mode spec (anything that resolveMode accepts), find and
  // initialize an actual mode object.
  function getMode(options, spec) {
    spec = resolveMode(spec);
    var mfactory = modes[spec.name];
    if (!mfactory) { return getMode(options, "text/plain") }
    var modeObj = mfactory(options, spec);
    if (modeExtensions.hasOwnProperty(spec.name)) {
      var exts = modeExtensions[spec.name];
      for (var prop in exts) {
        if (!exts.hasOwnProperty(prop)) { continue }
        if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; }
        modeObj[prop] = exts[prop];
      }
    }
    modeObj.name = spec.name;
    if (spec.helperType) { modeObj.helperType = spec.helperType; }
    if (spec.modeProps) { for (var prop$1 in spec.modeProps)
      { modeObj[prop$1] = spec.modeProps[prop$1]; } }

    return modeObj
  }

  // This can be used to attach properties to mode objects from
  // outside the actual mode definition.
  var modeExtensions = {};
  function extendMode(mode, properties) {
    var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
    copyObj(properties, exts);
  }

  function copyState(mode, state) {
    if (state === true) { return state }
    if (mode.copyState) { return mode.copyState(state) }
    var nstate = {};
    for (var n in state) {
      var val = state[n];
      if (val instanceof Array) { val = val.concat([]); }
      nstate[n] = val;
    }
    return nstate
  }

  // Given a mode and a state (for that mode), find the inner mode and
  // state at the position that the state refers to.
  function innerMode(mode, state) {
    var info;
    while (mode.innerMode) {
      info = mode.innerMode(state);
      if (!info || info.mode == mode) { break }
      state = info.state;
      mode = info.mode;
    }
    return info || {mode: mode, state: state}
  }

  function startState(mode, a1, a2) {
    return mode.startState ? mode.startState(a1, a2) : true
  }

  // STRING STREAM

  // Fed to the mode parsers, provides helper functions to make
  // parsers more succinct.

  var StringStream = function(string, tabSize, lineOracle) {
    this.pos = this.start = 0;
    this.string = string;
    this.tabSize = tabSize || 8;
    this.lastColumnPos = this.lastColumnValue = 0;
    this.lineStart = 0;
    this.lineOracle = lineOracle;
  };

  StringStream.prototype.eol = function () {return this.pos >= this.string.length};
  StringStream.prototype.sol = function () {return this.pos == this.lineStart};
  StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};
  StringStream.prototype.next = function () {
    if (this.pos < this.string.length)
      { return this.string.charAt(this.pos++) }
  };
  StringStream.prototype.eat = function (match) {
    var ch = this.string.charAt(this.pos);
    var ok;
    if (typeof match == "string") { ok = ch == match; }
    else { ok = ch && (match.test ? match.test(ch) : match(ch)); }
    if (ok) {++this.pos; return ch}
  };
  StringStream.prototype.eatWhile = function (match) {
    var start = this.pos;
    while (this.eat(match)){}
    return this.pos > start
  };
  StringStream.prototype.eatSpace = function () {
    var start = this.pos;
    while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this.pos; }
    return this.pos > start
  };
  StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};
  StringStream.prototype.skipTo = function (ch) {
    var found = this.string.indexOf(ch, this.pos);
    if (found > -1) {this.pos = found; return true}
  };
  StringStream.prototype.backUp = function (n) {this.pos -= n;};
  StringStream.prototype.column = function () {
    if (this.lastColumnPos < this.start) {
      this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
      this.lastColumnPos = this.start;
    }
    return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
  };
  StringStream.prototype.indentation = function () {
    return countColumn(this.string, null, this.tabSize) -
      (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
  };
  StringStream.prototype.match = function (pattern, consume, caseInsensitive) {
    if (typeof pattern == "string") {
      var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; };
      var substr = this.string.substr(this.pos, pattern.length);
      if (cased(substr) == cased(pattern)) {
        if (consume !== false) { this.pos += pattern.length; }
        return true
      }
    } else {
      var match = this.string.slice(this.pos).match(pattern);
      if (match && match.index > 0) { return null }
      if (match && consume !== false) { this.pos += match[0].length; }
      return match
    }
  };
  StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};
  StringStream.prototype.hideFirstChars = function (n, inner) {
    this.lineStart += n;
    try { return inner() }
    finally { this.lineStart -= n; }
  };
  StringStream.prototype.lookAhead = function (n) {
    var oracle = this.lineOracle;
    return oracle && oracle.lookAhead(n)
  };
  StringStream.prototype.baseToken = function () {
    var oracle = this.lineOracle;
    return oracle && oracle.baseToken(this.pos)
  };

  // Find the line object corresponding to the given line number.
  function getLine(doc, n) {
    n -= doc.first;
    if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") }
    var chunk = doc;
    while (!chunk.lines) {
      for (var i = 0;; ++i) {
        var child = chunk.children[i], sz = child.chunkSize();
        if (n < sz) { chunk = child; break }
        n -= sz;
      }
    }
    return chunk.lines[n]
  }

  // Get the part of a document between two positions, as an array of
  // strings.
  function getBetween(doc, start, end) {
    var out = [], n = start.line;
    doc.iter(start.line, end.line + 1, function (line) {
      var text = line.text;
      if (n == end.line) { text = text.slice(0, end.ch); }
      if (n == start.line) { text = text.slice(start.ch); }
      out.push(text);
      ++n;
    });
    return out
  }
  // Get the lines between from and to, as array of strings.
  function getLines(doc, from, to) {
    var out = [];
    doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value
    return out
  }

  // Update the height of a line, propagating the height change
  // upwards to parent nodes.
  function updateLineHeight(line, height) {
    var diff = height - line.height;
    if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } }
  }

  // Given a line object, find its line number by walking up through
  // its parent links.
  function lineNo(line) {
    if (line.parent == null) { return null }
    var cur = line.parent, no = indexOf(cur.lines, line);
    for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
      for (var i = 0;; ++i) {
        if (chunk.children[i] == cur) { break }
        no += chunk.children[i].chunkSize();
      }
    }
    return no + cur.first
  }

  // Find the line at the given vertical position, using the height
  // information in the document tree.
  function lineAtHeight(chunk, h) {
    var n = chunk.first;
    outer: do {
      for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {
        var child = chunk.children[i$1], ch = child.height;
        if (h < ch) { chunk = child; continue outer }
        h -= ch;
        n += child.chunkSize();
      }
      return n
    } while (!chunk.lines)
    var i = 0;
    for (; i < chunk.lines.length; ++i) {
      var line = chunk.lines[i], lh = line.height;
      if (h < lh) { break }
      h -= lh;
    }
    return n + i
  }

  function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}

  function lineNumberFor(options, i) {
    return String(options.lineNumberFormatter(i + options.firstLineNumber))
  }

  // A Pos instance represents a position within the text.
  function Pos(line, ch, sticky) {
    if ( sticky === void 0 ) sticky = null;

    if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }
    this.line = line;
    this.ch = ch;
    this.sticky = sticky;
  }

  // Compare two positions, return 0 if they are the same, a negative
  // number when a is less, and a positive number otherwise.
  function cmp(a, b) { return a.line - b.line || a.ch - b.ch }

  function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }

  function copyPos(x) {return Pos(x.line, x.ch)}
  function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
  function minPos(a, b) { return cmp(a, b) < 0 ? a : b }

  // Most of the external API clips given positions to make sure they
  // actually exist within the document.
  function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
  function clipPos(doc, pos) {
    if (pos.line < doc.first) { return Pos(doc.first, 0) }
    var last = doc.first + doc.size - 1;
    if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }
    return clipToLen(pos, getLine(doc, pos.line).text.length)
  }
  function clipToLen(pos, linelen) {
    var ch = pos.ch;
    if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }
    else if (ch < 0) { return Pos(pos.line, 0) }
    else { return pos }
  }
  function clipPosArray(doc, array) {
    var out = [];
    for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); }
    return out
  }

  var SavedContext = function(state, lookAhead) {
    this.state = state;
    this.lookAhead = lookAhead;
  };

  var Context = function(doc, state, line, lookAhead) {
    this.state = state;
    this.doc = doc;
    this.line = line;
    this.maxLookAhead = lookAhead || 0;
    this.baseTokens = null;
    this.baseTokenPos = 1;
  };

  Context.prototype.lookAhead = function (n) {
    var line = this.doc.getLine(this.line + n);
    if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; }
    return line
  };

  Context.prototype.baseToken = function (n) {
    if (!this.baseTokens) { return null }
    while (this.baseTokens[this.baseTokenPos] <= n)
      { this.baseTokenPos += 2; }
    var type = this.baseTokens[this.baseTokenPos + 1];
    return {type: type && type.replace(/( |^)overlay .*/, ""),
            size: this.baseTokens[this.baseTokenPos] - n}
  };

  Context.prototype.nextLine = function () {
    this.line++;
    if (this.maxLookAhead > 0) { this.maxLookAhead--; }
  };

  Context.fromSaved = function (doc, saved, line) {
    if (saved instanceof SavedContext)
      { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) }
    else
      { return new Context(doc, copyState(doc.mode, saved), line) }
  };

  Context.prototype.save = function (copy) {
    var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state;
    return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state
  };


  // Compute a style array (an array starting with a mode generation
  // -- for invalidation -- followed by pairs of end positions and
  // style strings), which is used to highlight the tokens on the
  // line.
  function highlightLine(cm, line, context, forceToEnd) {
    // A styles array always starts with a number identifying the
    // mode/overlays that it is based on (for easy invalidation).
    var st = [cm.state.modeGen], lineClasses = {};
    // Compute the base array of styles
    runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },
            lineClasses, forceToEnd);
    var state = context.state;

    // Run overlays, adjust style array.
    var loop = function ( o ) {
      context.baseTokens = st;
      var overlay = cm.state.overlays[o], i = 1, at = 0;
      context.state = true;
      runMode(cm, line.text, overlay.mode, context, function (end, style) {
        var start = i;
        // Ensure there's a token end at the current position, and that i points at it
        while (at < end) {
          var i_end = st[i];
          if (i_end > end)
            { st.splice(i, 1, end, st[i+1], i_end); }
          i += 2;
          at = Math.min(end, i_end);
        }
        if (!style) { return }
        if (overlay.opaque) {
          st.splice(start, i - start, end, "overlay " + style);
          i = start + 2;
        } else {
          for (; start < i; start += 2) {
            var cur = st[start+1];
            st[start+1] = (cur ? cur + " " : "") + "overlay " + style;
          }
        }
      }, lineClasses);
      context.state = state;
      context.baseTokens = null;
      context.baseTokenPos = 1;
    };

    for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );

    return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}
  }

  function getLineStyles(cm, line, updateFrontier) {
    if (!line.styles || line.styles[0] != cm.state.modeGen) {
      var context = getContextBefore(cm, lineNo(line));
      var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state);
      var result = highlightLine(cm, line, context);
      if (resetState) { context.state = resetState; }
      line.stateAfter = context.save(!resetState);
      line.styles = result.styles;
      if (result.classes) { line.styleClasses = result.classes; }
      else if (line.styleClasses) { line.styleClasses = null; }
      if (updateFrontier === cm.doc.highlightFrontier)
        { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); }
    }
    return line.styles
  }

  function getContextBefore(cm, n, precise) {
    var doc = cm.doc, display = cm.display;
    if (!doc.mode.startState) { return new Context(doc, true, n) }
    var start = findStartLine(cm, n, precise);
    var saved = start > doc.first && getLine(doc, start - 1).stateAfter;
    var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start);

    doc.iter(start, n, function (line) {
      processLine(cm, line.text, context);
      var pos = context.line;
      line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null;
      context.nextLine();
    });
    if (precise) { doc.modeFrontier = context.line; }
    return context
  }

  // Lightweight form of highlight -- proceed over this line and
  // update state, but don't save a style array. Used for lines that
  // aren't currently visible.
  function processLine(cm, text, context, startAt) {
    var mode = cm.doc.mode;
    var stream = new StringStream(text, cm.options.tabSize, context);
    stream.start = stream.pos = startAt || 0;
    if (text == "") { callBlankLine(mode, context.state); }
    while (!stream.eol()) {
      readToken(mode, stream, context.state);
      stream.start = stream.pos;
    }
  }

  function callBlankLine(mode, state) {
    if (mode.blankLine) { return mode.blankLine(state) }
    if (!mode.innerMode) { return }
    var inner = innerMode(mode, state);
    if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }
  }

  function readToken(mode, stream, state, inner) {
    for (var i = 0; i < 10; i++) {
      if (inner) { inner[0] = innerMode(mode, state).mode; }
      var style = mode.token(stream, state);
      if (stream.pos > stream.start) { return style }
    }
    throw new Error("Mode " + mode.name + " failed to advance stream.")
  }

  var Token = function(stream, type, state) {
    this.start = stream.start; this.end = stream.pos;
    this.string = stream.current();
    this.type = type || null;
    this.state = state;
  };

  // Utility for getTokenAt and getLineTokens
  function takeToken(cm, pos, precise, asArray) {
    var doc = cm.doc, mode = doc.mode, style;
    pos = clipPos(doc, pos);
    var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise);
    var stream = new StringStream(line.text, cm.options.tabSize, context), tokens;
    if (asArray) { tokens = []; }
    while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
      stream.start = stream.pos;
      style = readToken(mode, stream, context.state);
      if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); }
    }
    return asArray ? tokens : new Token(stream, style, context.state)
  }

  function extractLineClasses(type, output) {
    if (type) { for (;;) {
      var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
      if (!lineClass) { break }
      type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
      var prop = lineClass[1] ? "bgClass" : "textClass";
      if (output[prop] == null)
        { output[prop] = lineClass[2]; }
      else if (!(new RegExp("(?:^|\\s)" + lineClass[2] + "(?:$|\\s)")).test(output[prop]))
        { output[prop] += " " + lineClass[2]; }
    } }
    return type
  }

  // Run the given mode's parser over a line, calling f for each token.
  function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {
    var flattenSpans = mode.flattenSpans;
    if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; }
    var curStart = 0, curStyle = null;
    var stream = new StringStream(text, cm.options.tabSize, context), style;
    var inner = cm.options.addModeClass && [null];
    if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); }
    while (!stream.eol()) {
      if (stream.pos > cm.options.maxHighlightLength) {
        flattenSpans = false;
        if (forceToEnd) { processLine(cm, text, context, stream.pos); }
        stream.pos = text.length;
        style = null;
      } else {
        style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses);
      }
      if (inner) {
        var mName = inner[0].name;
        if (mName) { style = "m-" + (style ? mName + " " + style : mName); }
      }
      if (!flattenSpans || curStyle != style) {
        while (curStart < stream.start) {
          curStart = Math.min(stream.start, curStart + 5000);
          f(curStart, curStyle);
        }
        curStyle = style;
      }
      stream.start = stream.pos;
    }
    while (curStart < stream.pos) {
      // Webkit seems to refuse to render text nodes longer than 57444
      // characters, and returns inaccurate measurements in nodes
      // starting around 5000 chars.
      var pos = Math.min(stream.pos, curStart + 5000);
      f(pos, curStyle);
      curStart = pos;
    }
  }

  // Finds the line to start with when starting a parse. Tries to
  // find a line with a stateAfter, so that it can start with a
  // valid state. If that fails, it returns the line with the
  // smallest indentation, which tends to need the least context to
  // parse correctly.
  function findStartLine(cm, n, precise) {
    var minindent, minline, doc = cm.doc;
    var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
    for (var search = n; search > lim; --search) {
      if (search <= doc.first) { return doc.first }
      var line = getLine(doc, search - 1), after = line.stateAfter;
      if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))
        { return search }
      var indented = countColumn(line.text, null, cm.options.tabSize);
      if (minline == null || minindent > indented) {
        minline = search - 1;
        minindent = indented;
      }
    }
    return minline
  }

  function retreatFrontier(doc, n) {
    doc.modeFrontier = Math.min(doc.modeFrontier, n);
    if (doc.highlightFrontier < n - 10) { return }
    var start = doc.first;
    for (var line = n - 1; line > start; line--) {
      var saved = getLine(doc, line).stateAfter;
      // change is on 3
      // state on line 1 looked ahead 2 -- so saw 3
      // test 1 + 2 < 3 should cover this
      if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {
        start = line + 1;
        break
      }
    }
    doc.highlightFrontier = Math.min(doc.highlightFrontier, start);
  }

  // Optimize some code when these features are not used.
  var sawReadOnlySpans = false, sawCollapsedSpans = false;

  function seeReadOnlySpans() {
    sawReadOnlySpans = true;
  }

  function seeCollapsedSpans() {
    sawCollapsedSpans = true;
  }

  // TEXTMARKER SPANS

  function MarkedSpan(marker, from, to) {
    this.marker = marker;
    this.from = from; this.to = to;
  }

  // Search an array of spans for a span matching the given marker.
  function getMarkedSpanFor(spans, marker) {
    if (spans) { for (var i = 0; i < spans.length; ++i) {
      var span = spans[i];
      if (span.marker == marker) { return span }
    } }
  }
  // Remove a span from an array, returning undefined if no spans are
  // left (we don't store arrays for lines without spans).
  function removeMarkedSpan(spans, span) {
    var r;
    for (var i = 0; i < spans.length; ++i)
      { if (spans[i] != span) { (r || (r = [])).push(spans[i]); } }
    return r
  }
  // Add a span to a line.
  function addMarkedSpan(line, span) {
    line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
    span.marker.attachLine(line);
  }

  // Used for the algorithm that adjusts markers for a change in the
  // document. These functions cut an array of spans at a given
  // character position, returning an array of remaining chunks (or
  // undefined if nothing remains).
  function markedSpansBefore(old, startCh, isInsert) {
    var nw;
    if (old) { for (var i = 0; i < old.length; ++i) {
      var span = old[i], marker = span.marker;
      var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
      if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
        var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)
        ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
      }
    } }
    return nw
  }
  function markedSpansAfter(old, endCh, isInsert) {
    var nw;
    if (old) { for (var i = 0; i < old.length; ++i) {
      var span = old[i], marker = span.marker;
      var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
      if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
        var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)
        ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
                                              span.to == null ? null : span.to - endCh));
      }
    } }
    return nw
  }

  // Given a change object, compute the new set of marker spans that
  // cover the line in which the change took place. Removes spans
  // entirely within the change, reconnects spans belonging to the
  // same marker that appear on both sides of the change, and cuts off
  // spans partially within the change. Returns an array of span
  // arrays with one element for each line in (after) the change.
  function stretchSpansOverChange(doc, change) {
    if (change.full) { return null }
    var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
    var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
    if (!oldFirst && !oldLast) { return null }

    var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
    // Get the spans that 'stick out' on both sides
    var first = markedSpansBefore(oldFirst, startCh, isInsert);
    var last = markedSpansAfter(oldLast, endCh, isInsert);

    // Next, merge those two ends
    var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
    if (first) {
      // Fix up .to properties of first
      for (var i = 0; i < first.length; ++i) {
        var span = first[i];
        if (span.to == null) {
          var found = getMarkedSpanFor(last, span.marker);
          if (!found) { span.to = startCh; }
          else if (sameLine) { span.to = found.to == null ? null : found.to + offset; }
        }
      }
    }
    if (last) {
      // Fix up .from in last (or move them into first in case of sameLine)
      for (var i$1 = 0; i$1 < last.length; ++i$1) {
        var span$1 = last[i$1];
        if (span$1.to != null) { span$1.to += offset; }
        if (span$1.from == null) {
          var found$1 = getMarkedSpanFor(first, span$1.marker);
          if (!found$1) {
            span$1.from = offset;
            if (sameLine) { (first || (first = [])).push(span$1); }
          }
        } else {
          span$1.from += offset;
          if (sameLine) { (first || (first = [])).push(span$1); }
        }
      }
    }
    // Make sure we didn't create any zero-length spans
    if (first) { first = clearEmptySpans(first); }
    if (last && last != first) { last = clearEmptySpans(last); }

    var newMarkers = [first];
    if (!sameLine) {
      // Fill gap with whole-line-spans
      var gap = change.text.length - 2, gapMarkers;
      if (gap > 0 && first)
        { for (var i$2 = 0; i$2 < first.length; ++i$2)
          { if (first[i$2].to == null)
            { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } }
      for (var i$3 = 0; i$3 < gap; ++i$3)
        { newMarkers.push(gapMarkers); }
      newMarkers.push(last);
    }
    return newMarkers
  }

  // Remove spans that are empty and don't have a clearWhenEmpty
  // option of false.
  function clearEmptySpans(spans) {
    for (var i = 0; i < spans.length; ++i) {
      var span = spans[i];
      if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
        { spans.splice(i--, 1); }
    }
    if (!spans.length) { return null }
    return spans
  }

  // Used to 'clip' out readOnly ranges when making a change.
  function removeReadOnlyRanges(doc, from, to) {
    var markers = null;
    doc.iter(from.line, to.line + 1, function (line) {
      if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
        var mark = line.markedSpans[i].marker;
        if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
          { (markers || (markers = [])).push(mark); }
      } }
    });
    if (!markers) { return null }
    var parts = [{from: from, to: to}];
    for (var i = 0; i < markers.length; ++i) {
      var mk = markers[i], m = mk.find(0);
      for (var j = 0; j < parts.length; ++j) {
        var p = parts[j];
        if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }
        var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
        if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
          { newParts.push({from: p.from, to: m.from}); }
        if (dto > 0 || !mk.inclusiveRight && !dto)
          { newParts.push({from: m.to, to: p.to}); }
        parts.splice.apply(parts, newParts);
        j += newParts.length - 3;
      }
    }
    return parts
  }

  // Connect or disconnect spans from a line.
  function detachMarkedSpans(line) {
    var spans = line.markedSpans;
    if (!spans) { return }
    for (var i = 0; i < spans.length; ++i)
      { spans[i].marker.detachLine(line); }
    line.markedSpans = null;
  }
  function attachMarkedSpans(line, spans) {
    if (!spans) { return }
    for (var i = 0; i < spans.length; ++i)
      { spans[i].marker.attachLine(line); }
    line.markedSpans = spans;
  }

  // Helpers used when computing which overlapping collapsed span
  // counts as the larger one.
  function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }
  function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }

  // Returns a number indicating which of two overlapping collapsed
  // spans is larger (and thus includes the other). Falls back to
  // comparing ids when the spans cover exactly the same range.
  function compareCollapsedMarkers(a, b) {
    var lenDiff = a.lines.length - b.lines.length;
    if (lenDiff != 0) { return lenDiff }
    var aPos = a.find(), bPos = b.find();
    var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
    if (fromCmp) { return -fromCmp }
    var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
    if (toCmp) { return toCmp }
    return b.id - a.id
  }

  // Find out whether a line ends or starts in a collapsed span. If
  // so, return the marker for that span.
  function collapsedSpanAtSide(line, start) {
    var sps = sawCollapsedSpans && line.markedSpans, found;
    if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
      sp = sps[i];
      if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
          (!found || compareCollapsedMarkers(found, sp.marker) < 0))
        { found = sp.marker; }
    } }
    return found
  }
  function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }
  function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }

  function collapsedSpanAround(line, ch) {
    var sps = sawCollapsedSpans && line.markedSpans, found;
    if (sps) { for (var i = 0; i < sps.length; ++i) {
      var sp = sps[i];
      if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) &&
          (!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; }
    } }
    return found
  }

  // Test whether there exists a collapsed span that partially
  // overlaps (covers the start or end, but not both) of a new span.
  // Such overlap is not allowed.
  function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
    var line = getLine(doc, lineNo);
    var sps = sawCollapsedSpans && line.markedSpans;
    if (sps) { for (var i = 0; i < sps.length; ++i) {
      var sp = sps[i];
      if (!sp.marker.collapsed) { continue }
      var found = sp.marker.find(0);
      var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
      var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
      if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }
      if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
          fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
        { return true }
    } }
  }

  // A visual line is a line as drawn on the screen. Folding, for
  // example, can cause multiple logical lines to appear on the same
  // visual line. This finds the start of the visual line that the
  // given line is part of (usually that is the line itself).
  function visualLine(line) {
    var merged;
    while (merged = collapsedSpanAtStart(line))
      { line = merged.find(-1, true).line; }
    return line
  }

  function visualLineEnd(line) {
    var merged;
    while (merged = collapsedSpanAtEnd(line))
      { line = merged.find(1, true).line; }
    return line
  }

  // Returns an array of logical lines that continue the visual line
  // started by the argument, or undefined if there are no such lines.
  function visualLineContinued(line) {
    var merged, lines;
    while (merged = collapsedSpanAtEnd(line)) {
      line = merged.find(1, true).line
      ;(lines || (lines = [])).push(line);
    }
    return lines
  }

  // Get the line number of the start of the visual line that the
  // given line number is part of.
  function visualLineNo(doc, lineN) {
    var line = getLine(doc, lineN), vis = visualLine(line);
    if (line == vis) { return lineN }
    return lineNo(vis)
  }

  // Get the line number of the start of the next visual line after
  // the given line.
  function visualLineEndNo(doc, lineN) {
    if (lineN > doc.lastLine()) { return lineN }
    var line = getLine(doc, lineN), merged;
    if (!lineIsHidden(doc, line)) { return lineN }
    while (merged = collapsedSpanAtEnd(line))
      { line = merged.find(1, true).line; }
    return lineNo(line) + 1
  }

  // Compute whether a line is hidden. Lines count as hidden when they
  // are part of a visual line that starts with another line, or when
  // they are entirely covered by collapsed, non-widget span.
  function lineIsHidden(doc, line) {
    var sps = sawCollapsedSpans && line.markedSpans;
    if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
      sp = sps[i];
      if (!sp.marker.collapsed) { continue }
      if (sp.from == null) { return true }
      if (sp.marker.widgetNode) { continue }
      if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
        { return true }
    } }
  }
  function lineIsHiddenInner(doc, line, span) {
    if (span.to == null) {
      var end = span.marker.find(1, true);
      return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))
    }
    if (span.marker.inclusiveRight && span.to == line.text.length)
      { return true }
    for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {
      sp = line.markedSpans[i];
      if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
          (sp.to == null || sp.to != span.from) &&
          (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
          lineIsHiddenInner(doc, line, sp)) { return true }
    }
  }

  // Find the height above the given line.
  function heightAtLine(lineObj) {
    lineObj = visualLine(lineObj);

    var h = 0, chunk = lineObj.parent;
    for (var i = 0; i < chunk.lines.length; ++i) {
      var line = chunk.lines[i];
      if (line == lineObj) { break }
      else { h += line.height; }
    }
    for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
      for (var i$1 = 0; i$1 < p.children.length; ++i$1) {
        var cur = p.children[i$1];
        if (cur == chunk) { break }
        else { h += cur.height; }
      }
    }
    return h
  }

  // Compute the character length of a line, taking into account
  // collapsed ranges (see markText) that might hide parts, and join
  // other lines onto it.
  function lineLength(line) {
    if (line.height == 0) { return 0 }
    var len = line.text.length, merged, cur = line;
    while (merged = collapsedSpanAtStart(cur)) {
      var found = merged.find(0, true);
      cur = found.from.line;
      len += found.from.ch - found.to.ch;
    }
    cur = line;
    while (merged = collapsedSpanAtEnd(cur)) {
      var found$1 = merged.find(0, true);
      len -= cur.text.length - found$1.from.ch;
      cur = found$1.to.line;
      len += cur.text.length - found$1.to.ch;
    }
    return len
  }

  // Find the longest line in the document.
  function findMaxLine(cm) {
    var d = cm.display, doc = cm.doc;
    d.maxLine = getLine(doc, doc.first);
    d.maxLineLength = lineLength(d.maxLine);
    d.maxLineChanged = true;
    doc.iter(function (line) {
      var len = lineLength(line);
      if (len > d.maxLineLength) {
        d.maxLineLength = len;
        d.maxLine = line;
      }
    });
  }

  // LINE DATA STRUCTURE

  // Line objects. These hold state related to a line, including
  // highlighting info (the styles array).
  var Line = function(text, markedSpans, estimateHeight) {
    this.text = text;
    attachMarkedSpans(this, markedSpans);
    this.height = estimateHeight ? estimateHeight(this) : 1;
  };

  Line.prototype.lineNo = function () { return lineNo(this) };
  eventMixin(Line);

  // Change the content (text, markers) of a line. Automatically
  // invalidates cached information and tries to re-estimate the
  // line's height.
  function updateLine(line, text, markedSpans, estimateHeight) {
    line.text = text;
    if (line.stateAfter) { line.stateAfter = null; }
    if (line.styles) { line.styles = null; }
    if (line.order != null) { line.order = null; }
    detachMarkedSpans(line);
    attachMarkedSpans(line, markedSpans);
    var estHeight = estimateHeight ? estimateHeight(line) : 1;
    if (estHeight != line.height) { updateLineHeight(line, estHeight); }
  }

  // Detach a line from the document tree and its markers.
  function cleanUpLine(line) {
    line.parent = null;
    detachMarkedSpans(line);
  }

  // Convert a style as returned by a mode (either null, or a string
  // containing one or more styles) to a CSS style. This is cached,
  // and also looks for line-wide styles.
  var styleToClassCache = {}, styleToClassCacheWithMode = {};
  function interpretTokenStyle(style, options) {
    if (!style || /^\s*$/.test(style)) { return null }
    var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
    return cache[style] ||
      (cache[style] = style.replace(/\S+/g, "cm-$&"))
  }

  // Render the DOM representation of the text of a line. Also builds
  // up a 'line map', which points at the DOM nodes that represent
  // specific stretches of text, and is used by the measuring code.
  // The returned object contains the DOM node, this map, and
  // information about line-wide styles that were set by the mode.
  function buildLineContent(cm, lineView) {
    // The padding-right forces the element to have a 'border', which
    // is needed on Webkit to be able to get line-level bounding
    // rectangles for it (in measureChar).
    var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null);
    var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content,
                   col: 0, pos: 0, cm: cm,
                   trailingSpace: false,
                   splitSpaces: cm.getOption("lineWrapping")};
    lineView.measure = {};

    // Iterate over the logical lines that make up this visual line.
    for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
      var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0);
      builder.pos = 0;
      builder.addToken = buildToken;
      // Optionally wire in some hacks into the token-rendering
      // algorithm, to deal with browser quirks.
      if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))
        { builder.addToken = buildTokenBadBidi(builder.addToken, order); }
      builder.map = [];
      var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
      insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
      if (line.styleClasses) {
        if (line.styleClasses.bgClass)
          { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); }
        if (line.styleClasses.textClass)
          { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); }
      }

      // Ensure at least a single node is present, for measuring.
      if (builder.map.length == 0)
        { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); }

      // Store the map and a cache object for the current logical line
      if (i == 0) {
        lineView.measure.map = builder.map;
        lineView.measure.cache = {};
      } else {
  (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)
        ;(lineView.measure.caches || (lineView.measure.caches = [])).push({});
      }
    }

    // See issue #2901
    if (webkit) {
      var last = builder.content.lastChild;
      if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
        { builder.content.className = "cm-tab-wrap-hack"; }
    }

    signal(cm, "renderLine", cm, lineView.line, builder.pre);
    if (builder.pre.className)
      { builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); }

    return builder
  }

  function defaultSpecialCharPlaceholder(ch) {
    var token = elt("span", "\u2022", "cm-invalidchar");
    token.title = "\\u" + ch.charCodeAt(0).toString(16);
    token.setAttribute("aria-label", token.title);
    return token
  }

  // Build up the DOM representation for a single token, and add it to
  // the line map. Takes care to render special characters separately.
  function buildToken(builder, text, style, startStyle, endStyle, css, attributes) {
    if (!text) { return }
    var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text;
    var special = builder.cm.state.specialChars, mustWrap = false;
    var content;
    if (!special.test(text)) {
      builder.col += text.length;
      content = document.createTextNode(displayText);
      builder.map.push(builder.pos, builder.pos + text.length, content);
      if (ie && ie_version < 9) { mustWrap = true; }
      builder.pos += text.length;
    } else {
      content = document.createDocumentFragment();
      var pos = 0;
      while (true) {
        special.lastIndex = pos;
        var m = special.exec(text);
        var skipped = m ? m.index - pos : text.length - pos;
        if (skipped) {
          var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
          if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])); }
          else { content.appendChild(txt); }
          builder.map.push(builder.pos, builder.pos + skipped, txt);
          builder.col += skipped;
          builder.pos += skipped;
        }
        if (!m) { break }
        pos += skipped + 1;
        var txt$1 = (void 0);
        if (m[0] == "\t") {
          var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
          txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
          txt$1.setAttribute("role", "presentation");
          txt$1.setAttribute("cm-text", "\t");
          builder.col += tabWidth;
        } else if (m[0] == "\r" || m[0] == "\n") {
          txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"));
          txt$1.setAttribute("cm-text", m[0]);
          builder.col += 1;
        } else {
          txt$1 = builder.cm.options.specialCharPlaceholder(m[0]);
          txt$1.setAttribute("cm-text", m[0]);
          if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])); }
          else { content.appendChild(txt$1); }
          builder.col += 1;
        }
        builder.map.push(builder.pos, builder.pos + 1, txt$1);
        builder.pos++;
      }
    }
    builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32;
    if (style || startStyle || endStyle || mustWrap || css) {
      var fullStyle = style || "";
      if (startStyle) { fullStyle += startStyle; }
      if (endStyle) { fullStyle += endStyle; }
      var token = elt("span", [content], fullStyle, css);
      if (attributes) {
        for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != "style" && attr != "class")
          { token.setAttribute(attr, attributes[attr]); } }
      }
      return builder.content.appendChild(token)
    }
    builder.content.appendChild(content);
  }

  // Change some spaces to NBSP to prevent the browser from collapsing
  // trailing spaces at the end of a line when rendering text (issue #1362).
  function splitSpaces(text, trailingBefore) {
    if (text.length > 1 && !/  /.test(text)) { return text }
    var spaceBefore = trailingBefore, result = "";
    for (var i = 0; i < text.length; i++) {
      var ch = text.charAt(i);
      if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
        { ch = "\u00a0"; }
      result += ch;
      spaceBefore = ch == " ";
    }
    return result
  }

  // Work around nonsense dimensions being reported for stretches of
  // right-to-left text.
  function buildTokenBadBidi(inner, order) {
    return function (builder, text, style, startStyle, endStyle, css, attributes) {
      style = style ? style + " cm-force-border" : "cm-force-border";
      var start = builder.pos, end = start + text.length;
      for (;;) {
        // Find the part that overlaps with the start of this text
        var part = (void 0);
        for (var i = 0; i < order.length; i++) {
          part = order[i];
          if (part.to > start && part.from <= start) { break }
        }
        if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) }
        inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes);
        startStyle = null;
        text = text.slice(part.to - start);
        start = part.to;
      }
    }
  }

  function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
    var widget = !ignoreWidget && marker.widgetNode;
    if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); }
    if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
      if (!widget)
        { widget = builder.content.appendChild(document.createElement("span")); }
      widget.setAttribute("cm-marker", marker.id);
    }
    if (widget) {
      builder.cm.display.input.setUneditable(widget);
      builder.content.appendChild(widget);
    }
    builder.pos += size;
    builder.trailingSpace = false;
  }

  // Outputs a number of spans to make up a line, taking highlighting
  // and marked text into account.
  function insertLineContent(line, builder, styles) {
    var spans = line.markedSpans, allText = line.text, at = 0;
    if (!spans) {
      for (var i$1 = 1; i$1 < styles.length; i$1+=2)
        { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); }
      return
    }

    var len = allText.length, pos = 0, i = 1, text = "", style, css;
    var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes;
    for (;;) {
      if (nextChange == pos) { // Update current marker set
        spanStyle = spanEndStyle = spanStartStyle = css = "";
        attributes = null;
        collapsed = null; nextChange = Infinity;
        var foundBookmarks = [], endStyles = (void 0);
        for (var j = 0; j < spans.length; ++j) {
          var sp = spans[j], m = sp.marker;
          if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
            foundBookmarks.push(m);
          } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
            if (sp.to != null && sp.to != pos && nextChange > sp.to) {
              nextChange = sp.to;
              spanEndStyle = "";
            }
            if (m.className) { spanStyle += " " + m.className; }
            if (m.css) { css = (css ? css + ";" : "") + m.css; }
            if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle; }
            if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); }
            // support for the old title property
            // https://github.com/codemirror/CodeMirror/pull/5673
            if (m.title) { (attributes || (attributes = {})).title = m.title; }
            if (m.attributes) {
              for (var attr in m.attributes)
                { (attributes || (attributes = {}))[attr] = m.attributes[attr]; }
            }
            if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
              { collapsed = sp; }
          } else if (sp.from > pos && nextChange > sp.from) {
            nextChange = sp.from;
          }
        }
        if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)
          { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1]; } } }

        if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)
          { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } }
        if (collapsed && (collapsed.from || 0) == pos) {
          buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
                             collapsed.marker, collapsed.from == null);
          if (collapsed.to == null) { return }
          if (collapsed.to == pos) { collapsed = false; }
        }
      }
      if (pos >= len) { break }

      var upto = Math.min(len, nextChange);
      while (true) {
        if (text) {
          var end = pos + text.length;
          if (!collapsed) {
            var tokenText = end > upto ? text.slice(0, upto - pos) : text;
            builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
                             spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", css, attributes);
          }
          if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}
          pos = end;
          spanStartStyle = "";
        }
        text = allText.slice(at, at = styles[i++]);
        style = interpretTokenStyle(styles[i++], builder.cm.options);
      }
    }
  }


  // These objects are used to represent the visible (currently drawn)
  // part of the document. A LineView may correspond to multiple
  // logical lines, if those are connected by collapsed ranges.
  function LineView(doc, line, lineN) {
    // The starting line
    this.line = line;
    // Continuing lines, if any
    this.rest = visualLineContinued(line);
    // Number of logical lines in this visual line
    this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
    this.node = this.text = null;
    this.hidden = lineIsHidden(doc, line);
  }

  // Create a range of LineView objects for the given lines.
  function buildViewArray(cm, from, to) {
    var array = [], nextPos;
    for (var pos = from; pos < to; pos = nextPos) {
      var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
      nextPos = pos + view.size;
      array.push(view);
    }
    return array
  }

  var operationGroup = null;

  function pushOperation(op) {
    if (operationGroup) {
      operationGroup.ops.push(op);
    } else {
      op.ownsGroup = operationGroup = {
        ops: [op],
        delayedCallbacks: []
      };
    }
  }

  function fireCallbacksForOps(group) {
    // Calls delayed callbacks and cursorActivity handlers until no
    // new ones appear
    var callbacks = group.delayedCallbacks, i = 0;
    do {
      for (; i < callbacks.length; i++)
        { callbacks[i].call(null); }
      for (var j = 0; j < group.ops.length; j++) {
        var op = group.ops[j];
        if (op.cursorActivityHandlers)
          { while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
            { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } }
      }
    } while (i < callbacks.length)
  }

  function finishOperation(op, endCb) {
    var group = op.ownsGroup;
    if (!group) { return }

    try { fireCallbacksForOps(group); }
    finally {
      operationGroup = null;
      endCb(group);
    }
  }

  var orphanDelayedCallbacks = null;

  // Often, we want to signal events at a point where we are in the
  // middle of some work, but don't want the handler to start calling
  // other methods on the editor, which might be in an inconsistent
  // state or simply not expect any other events to happen.
  // signalLater looks whether there are any handlers, and schedules
  // them to be executed when the last operation ends, or, if no
  // operation is active, when a timeout fires.
  function signalLater(emitter, type /*, values...*/) {
    var arr = getHandlers(emitter, type);
    if (!arr.length) { return }
    var args = Array.prototype.slice.call(arguments, 2), list;
    if (operationGroup) {
      list = operationGroup.delayedCallbacks;
    } else if (orphanDelayedCallbacks) {
      list = orphanDelayedCallbacks;
    } else {
      list = orphanDelayedCallbacks = [];
      setTimeout(fireOrphanDelayed, 0);
    }
    var loop = function ( i ) {
      list.push(function () { return arr[i].apply(null, args); });
    };

    for (var i = 0; i < arr.length; ++i)
      loop( i );
  }

  function fireOrphanDelayed() {
    var delayed = orphanDelayedCallbacks;
    orphanDelayedCallbacks = null;
    for (var i = 0; i < delayed.length; ++i) { delayed[i](); }
  }

  // When an aspect of a line changes, a string is added to
  // lineView.changes. This updates the relevant part of the line's
  // DOM structure.
  function updateLineForChanges(cm, lineView, lineN, dims) {
    for (var j = 0; j < lineView.changes.length; j++) {
      var type = lineView.changes[j];
      if (type == "text") { updateLineText(cm, lineView); }
      else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims); }
      else if (type == "class") { updateLineClasses(cm, lineView); }
      else if (type == "widget") { updateLineWidgets(cm, lineView, dims); }
    }
    lineView.changes = null;
  }

  // Lines with gutter elements, widgets or a background class need to
  // be wrapped, and have the extra elements added to the wrapper div
  function ensureLineWrapped(lineView) {
    if (lineView.node == lineView.text) {
      lineView.node = elt("div", null, null, "position: relative");
      if (lineView.text.parentNode)
        { lineView.text.parentNode.replaceChild(lineView.node, lineView.text); }
      lineView.node.appendChild(lineView.text);
      if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; }
    }
    return lineView.node
  }

  function updateLineBackground(cm, lineView) {
    var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
    if (cls) { cls += " CodeMirror-linebackground"; }
    if (lineView.background) {
      if (cls) { lineView.background.className = cls; }
      else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
    } else if (cls) {
      var wrap = ensureLineWrapped(lineView);
      lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
      cm.display.input.setUneditable(lineView.background);
    }
  }

  // Wrapper around buildLineContent which will reuse the structure
  // in display.externalMeasured when possible.
  function getLineContent(cm, lineView) {
    var ext = cm.display.externalMeasured;
    if (ext && ext.line == lineView.line) {
      cm.display.externalMeasured = null;
      lineView.measure = ext.measure;
      return ext.built
    }
    return buildLineContent(cm, lineView)
  }

  // Redraw the line's text. Interacts with the background and text
  // classes because the mode may output tokens that influence these
  // classes.
  function updateLineText(cm, lineView) {
    var cls = lineView.text.className;
    var built = getLineContent(cm, lineView);
    if (lineView.text == lineView.node) { lineView.node = built.pre; }
    lineView.text.parentNode.replaceChild(built.pre, lineView.text);
    lineView.text = built.pre;
    if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
      lineView.bgClass = built.bgClass;
      lineView.textClass = built.textClass;
      updateLineClasses(cm, lineView);
    } else if (cls) {
      lineView.text.className = cls;
    }
  }

  function updateLineClasses(cm, lineView) {
    updateLineBackground(cm, lineView);
    if (lineView.line.wrapClass)
      { ensureLineWrapped(lineView).className = lineView.line.wrapClass; }
    else if (lineView.node != lineView.text)
      { lineView.node.className = ""; }
    var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
    lineView.text.className = textClass || "";
  }

  function updateLineGutter(cm, lineView, lineN, dims) {
    if (lineView.gutter) {
      lineView.node.removeChild(lineView.gutter);
      lineView.gutter = null;
    }
    if (lineView.gutterBackground) {
      lineView.node.removeChild(lineView.gutterBackground);
      lineView.gutterBackground = null;
    }
    if (lineView.line.gutterClass) {
      var wrap = ensureLineWrapped(lineView);
      lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
                                      ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px"));
      cm.display.input.setUneditable(lineView.gutterBackground);
      wrap.insertBefore(lineView.gutterBackground, lineView.text);
    }
    var markers = lineView.line.gutterMarkers;
    if (cm.options.lineNumbers || markers) {
      var wrap$1 = ensureLineWrapped(lineView);
      var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"));
      cm.display.input.setUneditable(gutterWrap);
      wrap$1.insertBefore(gutterWrap, lineView.text);
      if (lineView.line.gutterClass)
        { gutterWrap.className += " " + lineView.line.gutterClass; }
      if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
        { lineView.lineNumber = gutterWrap.appendChild(
          elt("div", lineNumberFor(cm.options, lineN),
              "CodeMirror-linenumber CodeMirror-gutter-elt",
              ("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))); }
      if (markers) { for (var k = 0; k < cm.display.gutterSpecs.length; ++k) {
        var id = cm.display.gutterSpecs[k].className, found = markers.hasOwnProperty(id) && markers[id];
        if (found)
          { gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt",
                                     ("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))); }
      } }
    }
  }

  function updateLineWidgets(cm, lineView, dims) {
    if (lineView.alignable) { lineView.alignable = null; }
    var isWidget = classTest("CodeMirror-linewidget");
    for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {
      next = node.nextSibling;
      if (isWidget.test(node.className)) { lineView.node.removeChild(node); }
    }
    insertLineWidgets(cm, lineView, dims);
  }

  // Build a line's DOM representation from scratch
  function buildLineElement(cm, lineView, lineN, dims) {
    var built = getLineContent(cm, lineView);
    lineView.text = lineView.node = built.pre;
    if (built.bgClass) { lineView.bgClass = built.bgClass; }
    if (built.textClass) { lineView.textClass = built.textClass; }

    updateLineClasses(cm, lineView);
    updateLineGutter(cm, lineView, lineN, dims);
    insertLineWidgets(cm, lineView, dims);
    return lineView.node
  }

  // A lineView may contain multiple logical lines (when merged by
  // collapsed spans). The widgets for all of them need to be drawn.
  function insertLineWidgets(cm, lineView, dims) {
    insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
    if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
      { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } }
  }

  function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
    if (!line.widgets) { return }
    var wrap = ensureLineWrapped(lineView);
    for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
      var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget" + (widget.className ? " " + widget.className : ""));
      if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true"); }
      positionLineWidget(widget, node, lineView, dims);
      cm.display.input.setUneditable(node);
      if (allowAbove && widget.above)
        { wrap.insertBefore(node, lineView.gutter || lineView.text); }
      else
        { wrap.appendChild(node); }
      signalLater(widget, "redraw");
    }
  }

  function positionLineWidget(widget, node, lineView, dims) {
    if (widget.noHScroll) {
  (lineView.alignable || (lineView.alignable = [])).push(node);
      var width = dims.wrapperWidth;
      node.style.left = dims.fixedPos + "px";
      if (!widget.coverGutter) {
        width -= dims.gutterTotalWidth;
        node.style.paddingLeft = dims.gutterTotalWidth + "px";
      }
      node.style.width = width + "px";
    }
    if (widget.coverGutter) {
      node.style.zIndex = 5;
      node.style.position = "relative";
      if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px"; }
    }
  }

  function widgetHeight(widget) {
    if (widget.height != null) { return widget.height }
    var cm = widget.doc.cm;
    if (!cm) { return 0 }
    if (!contains(document.body, widget.node)) {
      var parentStyle = "position: relative;";
      if (widget.coverGutter)
        { parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; }
      if (widget.noHScroll)
        { parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; }
      removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle));
    }
    return widget.height = widget.node.parentNode.offsetHeight
  }

  // Return true when the given mouse event happened in a widget
  function eventInWidget(display, e) {
    for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
      if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
          (n.parentNode == display.sizer && n != display.mover))
        { return true }
    }
  }

  // POSITION MEASUREMENT

  function paddingTop(display) {return display.lineSpace.offsetTop}
  function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}
  function paddingH(display) {
    if (display.cachedPaddingH) { return display.cachedPaddingH }
    var e = removeChildrenAndAdd(display.measure, elt("pre", "x", "CodeMirror-line-like"));
    var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
    var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
    if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; }
    return data
  }

  function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }
  function displayWidth(cm) {
    return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
  }
  function displayHeight(cm) {
    return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
  }

  // Ensure the lineView.wrapping.heights array is populated. This is
  // an array of bottom offsets for the lines that make up a drawn
  // line. When lineWrapping is on, there might be more than one
  // height.
  function ensureLineHeights(cm, lineView, rect) {
    var wrapping = cm.options.lineWrapping;
    var curWidth = wrapping && displayWidth(cm);
    if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
      var heights = lineView.measure.heights = [];
      if (wrapping) {
        lineView.measure.width = curWidth;
        var rects = lineView.text.firstChild.getClientRects();
        for (var i = 0; i < rects.length - 1; i++) {
          var cur = rects[i], next = rects[i + 1];
          if (Math.abs(cur.bottom - next.bottom) > 2)
            { heights.push((cur.bottom + next.top) / 2 - rect.top); }
        }
      }
      heights.push(rect.bottom - rect.top);
    }
  }

  // Find a line map (mapping character offsets to text nodes) and a
  // measurement cache for the given line number. (A line view might
  // contain multiple lines when collapsed ranges are present.)
  function mapFromLineView(lineView, line, lineN) {
    if (lineView.line == line)
      { return {map: lineView.measure.map, cache: lineView.measure.cache} }
    for (var i = 0; i < lineView.rest.length; i++)
      { if (lineView.rest[i] == line)
        { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }
    for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)
      { if (lineNo(lineView.rest[i$1]) > lineN)
        { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }
  }

  // Render a line into the hidden node display.externalMeasured. Used
  // when measurement is needed for a line that's not in the viewport.
  function updateExternalMeasurement(cm, line) {
    line = visualLine(line);
    var lineN = lineNo(line);
    var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
    view.lineN = lineN;
    var built = view.built = buildLineContent(cm, view);
    view.text = built.pre;
    removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
    return view
  }

  // Get a {top, bottom, left, right} box (in line-local coordinates)
  // for a given character.
  function measureChar(cm, line, ch, bias) {
    return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)
  }

  // Find a line view that corresponds to the given line number.
  function findViewForLine(cm, lineN) {
    if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
      { return cm.display.view[findViewIndex(cm, lineN)] }
    var ext = cm.display.externalMeasured;
    if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
      { return ext }
  }

  // Measurement can be split in two steps, the set-up work that
  // applies to the whole line, and the measurement of the actual
  // character. Functions like coordsChar, that need to do a lot of
  // measurements in a row, can thus ensure that the set-up work is
  // only done once.
  function prepareMeasureForLine(cm, line) {
    var lineN = lineNo(line);
    var view = findViewForLine(cm, lineN);
    if (view && !view.text) {
      view = null;
    } else if (view && view.changes) {
      updateLineForChanges(cm, view, lineN, getDimensions(cm));
      cm.curOp.forceUpdate = true;
    }
    if (!view)
      { view = updateExternalMeasurement(cm, line); }

    var info = mapFromLineView(view, line, lineN);
    return {
      line: line, view: view, rect: null,
      map: info.map, cache: info.cache, before: info.before,
      hasHeights: false
    }
  }

  // Given a prepared measurement object, measures the position of an
  // actual character (or fetches it from the cache).
  function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
    if (prepared.before) { ch = -1; }
    var key = ch + (bias || ""), found;
    if (prepared.cache.hasOwnProperty(key)) {
      found = prepared.cache[key];
    } else {
      if (!prepared.rect)
        { prepared.rect = prepared.view.text.getBoundingClientRect(); }
      if (!prepared.hasHeights) {
        ensureLineHeights(cm, prepared.view, prepared.rect);
        prepared.hasHeights = true;
      }
      found = measureCharInner(cm, prepared, ch, bias);
      if (!found.bogus) { prepared.cache[key] = found; }
    }
    return {left: found.left, right: found.right,
            top: varHeight ? found.rtop : found.top,
            bottom: varHeight ? found.rbottom : found.bottom}
  }

  var nullRect = {left: 0, right: 0, top: 0, bottom: 0};

  function nodeAndOffsetInLineMap(map, ch, bias) {
    var node, start, end, collapse, mStart, mEnd;
    // First, search the line map for the text node corresponding to,
    // or closest to, the target character.
    for (var i = 0; i < map.length; i += 3) {
      mStart = map[i];
      mEnd = map[i + 1];
      if (ch < mStart) {
        start = 0; end = 1;
        collapse = "left";
      } else if (ch < mEnd) {
        start = ch - mStart;
        end = start + 1;
      } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
        end = mEnd - mStart;
        start = end - 1;
        if (ch >= mEnd) { collapse = "right"; }
      }
      if (start != null) {
        node = map[i + 2];
        if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
          { collapse = bias; }
        if (bias == "left" && start == 0)
          { while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
            node = map[(i -= 3) + 2];
            collapse = "left";
          } }
        if (bias == "right" && start == mEnd - mStart)
          { while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
            node = map[(i += 3) + 2];
            collapse = "right";
          } }
        break
      }
    }
    return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}
  }

  function getUsefulRect(rects, bias) {
    var rect = nullRect;
    if (bias == "left") { for (var i = 0; i < rects.length; i++) {
      if ((rect = rects[i]).left != rect.right) { break }
    } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {
      if ((rect = rects[i$1]).left != rect.right) { break }
    } }
    return rect
  }

  function measureCharInner(cm, prepared, ch, bias) {
    var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
    var node = place.node, start = place.start, end = place.end, collapse = place.collapse;

    var rect;
    if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
      for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned
        while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; }
        while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; }
        if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
          { rect = node.parentNode.getBoundingClientRect(); }
        else
          { rect = getUsefulRect(range(node, start, end).getClientRects(), bias); }
        if (rect.left || rect.right || start == 0) { break }
        end = start;
        start = start - 1;
        collapse = "right";
      }
      if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); }
    } else { // If it is a widget, simply get the box for the whole widget.
      if (start > 0) { collapse = bias = "right"; }
      var rects;
      if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
        { rect = rects[bias == "right" ? rects.length - 1 : 0]; }
      else
        { rect = node.getBoundingClientRect(); }
    }
    if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
      var rSpan = node.parentNode.getClientRects()[0];
      if (rSpan)
        { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; }
      else
        { rect = nullRect; }
    }

    var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
    var mid = (rtop + rbot) / 2;
    var heights = prepared.view.measure.heights;
    var i = 0;
    for (; i < heights.length - 1; i++)
      { if (mid < heights[i]) { break } }
    var top = i ? heights[i - 1] : 0, bot = heights[i];
    var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
                  right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
                  top: top, bottom: bot};
    if (!rect.left && !rect.right) { result.bogus = true; }
    if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }

    return result
  }

  // Work around problem with bounding client rects on ranges being
  // returned incorrectly when zoomed on IE10 and below.
  function maybeUpdateRectForZooming(measure, rect) {
    if (!window.screen || screen.logicalXDPI == null ||
        screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
      { return rect }
    var scaleX = screen.logicalXDPI / screen.deviceXDPI;
    var scaleY = screen.logicalYDPI / screen.deviceYDPI;
    return {left: rect.left * scaleX, right: rect.right * scaleX,
            top: rect.top * scaleY, bottom: rect.bottom * scaleY}
  }

  function clearLineMeasurementCacheFor(lineView) {
    if (lineView.measure) {
      lineView.measure.cache = {};
      lineView.measure.heights = null;
      if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
        { lineView.measure.caches[i] = {}; } }
    }
  }

  function clearLineMeasurementCache(cm) {
    cm.display.externalMeasure = null;
    removeChildren(cm.display.lineMeasure);
    for (var i = 0; i < cm.display.view.length; i++)
      { clearLineMeasurementCacheFor(cm.display.view[i]); }
  }

  function clearCaches(cm) {
    clearLineMeasurementCache(cm);
    cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
    if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; }
    cm.display.lineNumChars = null;
  }

  function pageScrollX() {
    // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206
    // which causes page_Offset and bounding client rects to use
    // different reference viewports and invalidate our calculations.
    if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) }
    return window.pageXOffset || (document.documentElement || document.body).scrollLeft
  }
  function pageScrollY() {
    if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) }
    return window.pageYOffset || (document.documentElement || document.body).scrollTop
  }

  function widgetTopHeight(lineObj) {
    var height = 0;
    if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above)
      { height += widgetHeight(lineObj.widgets[i]); } } }
    return height
  }

  // Converts a {top, bottom, left, right} box from line-local
  // coordinates into another coordinate system. Context may be one of
  // "line", "div" (display.lineDiv), "local"./null (editor), "window",
  // or "page".
  function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {
    if (!includeWidgets) {
      var height = widgetTopHeight(lineObj);
      rect.top += height; rect.bottom += height;
    }
    if (context == "line") { return rect }
    if (!context) { context = "local"; }
    var yOff = heightAtLine(lineObj);
    if (context == "local") { yOff += paddingTop(cm.display); }
    else { yOff -= cm.display.viewOffset; }
    if (context == "page" || context == "window") {
      var lOff = cm.display.lineSpace.getBoundingClientRect();
      yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
      var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
      rect.left += xOff; rect.right += xOff;
    }
    rect.top += yOff; rect.bottom += yOff;
    return rect
  }

  // Coverts a box from "div" coords to another coordinate system.
  // Context may be "window", "page", "div", or "local"./null.
  function fromCoordSystem(cm, coords, context) {
    if (context == "div") { return coords }
    var left = coords.left, top = coords.top;
    // First move into "page" coordinate system
    if (context == "page") {
      left -= pageScrollX();
      top -= pageScrollY();
    } else if (context == "local" || !context) {
      var localBox = cm.display.sizer.getBoundingClientRect();
      left += localBox.left;
      top += localBox.top;
    }

    var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
    return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}
  }

  function charCoords(cm, pos, context, lineObj, bias) {
    if (!lineObj) { lineObj = getLine(cm.doc, pos.line); }
    return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)
  }

  // Returns a box for a given cursor position, which may have an
  // 'other' property containing the position of the secondary cursor
  // on a bidi boundary.
  // A cursor Pos(line, char, "before") is on the same visual line as `char - 1`
  // and after `char - 1` in writing order of `char - 1`
  // A cursor Pos(line, char, "after") is on the same visual line as `char`
  // and before `char` in writing order of `char`
  // Examples (upper-case letters are RTL, lower-case are LTR):
  //     Pos(0, 1, ...)
  //     before   after
  // ab     a|b     a|b
  // aB     a|B     aB|
  // Ab     |Ab     A|b
  // AB     B|A     B|A
  // Every position after the last character on a line is considered to stick
  // to the last character on the line.
  function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
    lineObj = lineObj || getLine(cm.doc, pos.line);
    if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
    function get(ch, right) {
      var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
      if (right) { m.left = m.right; } else { m.right = m.left; }
      return intoCoordSystem(cm, lineObj, m, context)
    }
    var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky;
    if (ch >= lineObj.text.length) {
      ch = lineObj.text.length;
      sticky = "before";
    } else if (ch <= 0) {
      ch = 0;
      sticky = "after";
    }
    if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") }

    function getBidi(ch, partPos, invert) {
      var part = order[partPos], right = part.level == 1;
      return get(invert ? ch - 1 : ch, right != invert)
    }
    var partPos = getBidiPartAt(order, ch, sticky);
    var other = bidiOther;
    var val = getBidi(ch, partPos, sticky == "before");
    if (other != null) { val.other = getBidi(ch, other, sticky != "before"); }
    return val
  }

  // Used to cheaply estimate the coordinates for a position. Used for
  // intermediate scroll updates.
  function estimateCoords(cm, pos) {
    var left = 0;
    pos = clipPos(cm.doc, pos);
    if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; }
    var lineObj = getLine(cm.doc, pos.line);
    var top = heightAtLine(lineObj) + paddingTop(cm.display);
    return {left: left, right: left, top: top, bottom: top + lineObj.height}
  }

  // Positions returned by coordsChar contain some extra information.
  // xRel is the relative x position of the input coordinates compared
  // to the found position (so xRel > 0 means the coordinates are to
  // the right of the character position, for example). When outside
  // is true, that means the coordinates lie outside the line's
  // vertical range.
  function PosWithInfo(line, ch, sticky, outside, xRel) {
    var pos = Pos(line, ch, sticky);
    pos.xRel = xRel;
    if (outside) { pos.outside = outside; }
    return pos
  }

  // Compute the character position closest to the given coordinates.
  // Input must be lineSpace-local ("div" coordinate system).
  function coordsChar(cm, x, y) {
    var doc = cm.doc;
    y += cm.display.viewOffset;
    if (y < 0) { return PosWithInfo(doc.first, 0, null, -1, -1) }
    var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
    if (lineN > last)
      { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, 1, 1) }
    if (x < 0) { x = 0; }

    var lineObj = getLine(doc, lineN);
    for (;;) {
      var found = coordsCharInner(cm, lineObj, lineN, x, y);
      var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 || found.outside > 0 ? 1 : 0));
      if (!collapsed) { return found }
      var rangeEnd = collapsed.find(1);
      if (rangeEnd.line == lineN) { return rangeEnd }
      lineObj = getLine(doc, lineN = rangeEnd.line);
    }
  }

  function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {
    y -= widgetTopHeight(lineObj);
    var end = lineObj.text.length;
    var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0);
    end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end);
    return {begin: begin, end: end}
  }

  function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {
    if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
    var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top;
    return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)
  }

  // Returns true if the given side of a box is after the given
  // coordinates, in top-to-bottom, left-to-right order.
  function boxIsAfter(box, x, y, left) {
    return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x
  }

  function coordsCharInner(cm, lineObj, lineNo, x, y) {
    // Move y into line-local coordinate space
    y -= heightAtLine(lineObj);
    var preparedMeasure = prepareMeasureForLine(cm, lineObj);
    // When directly calling `measureCharPrepared`, we have to adjust
    // for the widgets at this line.
    var widgetHeight = widgetTopHeight(lineObj);
    var begin = 0, end = lineObj.text.length, ltr = true;

    var order = getOrder(lineObj, cm.doc.direction);
    // If the line isn't plain left-to-right text, first figure out
    // which bidi section the coordinates fall into.
    if (order) {
      var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)
                   (cm, lineObj, lineNo, preparedMeasure, order, x, y);
      ltr = part.level != 1;
      // The awkward -1 offsets are needed because findFirst (called
      // on these below) will treat its first bound as inclusive,
      // second as exclusive, but we want to actually address the
      // characters in the part's range
      begin = ltr ? part.from : part.to - 1;
      end = ltr ? part.to : part.from - 1;
    }

    // A binary search to find the first character whose bounding box
    // starts after the coordinates. If we run across any whose box wrap
    // the coordinates, store that.
    var chAround = null, boxAround = null;
    var ch = findFirst(function (ch) {
      var box = measureCharPrepared(cm, preparedMeasure, ch);
      box.top += widgetHeight; box.bottom += widgetHeight;
      if (!boxIsAfter(box, x, y, false)) { return false }
      if (box.top <= y && box.left <= x) {
        chAround = ch;
        boxAround = box;
      }
      return true
    }, begin, end);

    var baseX, sticky, outside = false;
    // If a box around the coordinates was found, use that
    if (boxAround) {
      // Distinguish coordinates nearer to the left or right side of the box
      var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr;
      ch = chAround + (atStart ? 0 : 1);
      sticky = atStart ? "after" : "before";
      baseX = atLeft ? boxAround.left : boxAround.right;
    } else {
      // (Adjust for extended bound, if necessary.)
      if (!ltr && (ch == end || ch == begin)) { ch++; }
      // To determine which side to associate with, get the box to the
      // left of the character and compare it's vertical position to the
      // coordinates
      sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" :
        (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight <= y) == ltr ?
        "after" : "before";
      // Now get accurate coordinates for this place, in order to get a
      // base X position
      var coords = cursorCoords(cm, Pos(lineNo, ch, sticky), "line", lineObj, preparedMeasure);
      baseX = coords.left;
      outside = y < coords.top ? -1 : y >= coords.bottom ? 1 : 0;
    }

    ch = skipExtendingChars(lineObj.text, ch, 1);
    return PosWithInfo(lineNo, ch, sticky, outside, x - baseX)
  }

  function coordsBidiPart(cm, lineObj, lineNo, preparedMeasure, order, x, y) {
    // Bidi parts are sorted left-to-right, and in a non-line-wrapping
    // situation, we can take this ordering to correspond to the visual
    // ordering. This finds the first part whose end is after the given
    // coordinates.
    var index = findFirst(function (i) {
      var part = order[i], ltr = part.level != 1;
      return boxIsAfter(cursorCoords(cm, Pos(lineNo, ltr ? part.to : part.from, ltr ? "before" : "after"),
                                     "line", lineObj, preparedMeasure), x, y, true)
    }, 0, order.length - 1);
    var part = order[index];
    // If this isn't the first part, the part's start is also after
    // the coordinates, and the coordinates aren't on the same line as
    // that start, move one part back.
    if (index > 0) {
      var ltr = part.level != 1;
      var start = cursorCoords(cm, Pos(lineNo, ltr ? part.from : part.to, ltr ? "after" : "before"),
                               "line", lineObj, preparedMeasure);
      if (boxIsAfter(start, x, y, true) && start.top > y)
        { part = order[index - 1]; }
    }
    return part
  }

  function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) {
    // In a wrapped line, rtl text on wrapping boundaries can do things
    // that don't correspond to the ordering in our `order` array at
    // all, so a binary search doesn't work, and we want to return a
    // part that only spans one line so that the binary search in
    // coordsCharInner is safe. As such, we first find the extent of the
    // wrapped line, and then do a flat search in which we discard any
    // spans that aren't on the line.
    var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y);
    var begin = ref.begin;
    var end = ref.end;
    if (/\s/.test(lineObj.text.charAt(end - 1))) { end--; }
    var part = null, closestDist = null;
    for (var i = 0; i < order.length; i++) {
      var p = order[i];
      if (p.from >= end || p.to <= begin) { continue }
      var ltr = p.level != 1;
      var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right;
      // Weigh against spans ending before this, so that they are only
      // picked if nothing ends after
      var dist = endX < x ? x - endX + 1e9 : endX - x;
      if (!part || closestDist > dist) {
        part = p;
        closestDist = dist;
      }
    }
    if (!part) { part = order[order.length - 1]; }
    // Clip the part to the wrapped line.
    if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; }
    if (part.to > end) { part = {from: part.from, to: end, level: part.level}; }
    return part
  }

  var measureText;
  // Compute the default text height.
  function textHeight(display) {
    if (display.cachedTextHeight != null) { return display.cachedTextHeight }
    if (measureText == null) {
      measureText = elt("pre", null, "CodeMirror-line-like");
      // Measure a bunch of lines, for browsers that compute
      // fractional heights.
      for (var i = 0; i < 49; ++i) {
        measureText.appendChild(document.createTextNode("x"));
        measureText.appendChild(elt("br"));
      }
      measureText.appendChild(document.createTextNode("x"));
    }
    removeChildrenAndAdd(display.measure, measureText);
    var height = measureText.offsetHeight / 50;
    if (height > 3) { display.cachedTextHeight = height; }
    removeChildren(display.measure);
    return height || 1
  }

  // Compute the default character width.
  function charWidth(display) {
    if (display.cachedCharWidth != null) { return display.cachedCharWidth }
    var anchor = elt("span", "xxxxxxxxxx");
    var pre = elt("pre", [anchor], "CodeMirror-line-like");
    removeChildrenAndAdd(display.measure, pre);
    var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
    if (width > 2) { display.cachedCharWidth = width; }
    return width || 10
  }

  // Do a bulk-read of the DOM positions and sizes needed to draw the
  // view, so that we don't interleave reading and writing to the DOM.
  function getDimensions(cm) {
    var d = cm.display, left = {}, width = {};
    var gutterLeft = d.gutters.clientLeft;
    for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
      var id = cm.display.gutterSpecs[i].className;
      left[id] = n.offsetLeft + n.clientLeft + gutterLeft;
      width[id] = n.clientWidth;
    }
    return {fixedPos: compensateForHScroll(d),
            gutterTotalWidth: d.gutters.offsetWidth,
            gutterLeft: left,
            gutterWidth: width,
            wrapperWidth: d.wrapper.clientWidth}
  }

  // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
  // but using getBoundingClientRect to get a sub-pixel-accurate
  // result.
  function compensateForHScroll(display) {
    return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left
  }

  // Returns a function that estimates the height of a line, to use as
  // first approximation until the line becomes visible (and is thus
  // properly measurable).
  function estimateHeight(cm) {
    var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
    var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
    return function (line) {
      if (lineIsHidden(cm.doc, line)) { return 0 }

      var widgetsHeight = 0;
      if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {
        if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; }
      } }

      if (wrapping)
        { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }
      else
        { return widgetsHeight + th }
    }
  }

  function estimateLineHeights(cm) {
    var doc = cm.doc, est = estimateHeight(cm);
    doc.iter(function (line) {
      var estHeight = est(line);
      if (estHeight != line.height) { updateLineHeight(line, estHeight); }
    });
  }

  // Given a mouse event, find the corresponding position. If liberal
  // is false, it checks whether a gutter or scrollbar was clicked,
  // and returns null if it was. forRect is used by rectangular
  // selections, and tries to estimate a character position even for
  // coordinates beyond the right of the text.
  function posFromMouse(cm, e, liberal, forRect) {
    var display = cm.display;
    if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null }

    var x, y, space = display.lineSpace.getBoundingClientRect();
    // Fails unpredictably on IE[67] when mouse is dragged around quickly.
    try { x = e.clientX - space.left; y = e.clientY - space.top; }
    catch (e$1) { return null }
    var coords = coordsChar(cm, x, y), line;
    if (forRect && coords.xRel > 0 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
      var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
      coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
    }
    return coords
  }

  // Find the view element corresponding to a given line. Return null
  // when the line isn't visible.
  function findViewIndex(cm, n) {
    if (n >= cm.display.viewTo) { return null }
    n -= cm.display.viewFrom;
    if (n < 0) { return null }
    var view = cm.display.view;
    for (var i = 0; i < view.length; i++) {
      n -= view[i].size;
      if (n < 0) { return i }
    }
  }

  // Updates the display.view data structure for a given change to the
  // document. From and to are in pre-change coordinates. Lendiff is
  // the amount of lines added or subtracted by the change. This is
  // used for changes that span multiple lines, or change the way
  // lines are divided into visual lines. regLineChange (below)
  // registers single-line changes.
  function regChange(cm, from, to, lendiff) {
    if (from == null) { from = cm.doc.first; }
    if (to == null) { to = cm.doc.first + cm.doc.size; }
    if (!lendiff) { lendiff = 0; }

    var display = cm.display;
    if (lendiff && to < display.viewTo &&
        (display.updateLineNumbers == null || display.updateLineNumbers > from))
      { display.updateLineNumbers = from; }

    cm.curOp.viewChanged = true;

    if (from >= display.viewTo) { // Change after
      if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
        { resetView(cm); }
    } else if (to <= display.viewFrom) { // Change before
      if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
        resetView(cm);
      } else {
        display.viewFrom += lendiff;
        display.viewTo += lendiff;
      }
    } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
      resetView(cm);
    } else if (from <= display.viewFrom) { // Top overlap
      var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
      if (cut) {
        display.view = display.view.slice(cut.index);
        display.viewFrom = cut.lineN;
        display.viewTo += lendiff;
      } else {
        resetView(cm);
      }
    } else if (to >= display.viewTo) { // Bottom overlap
      var cut$1 = viewCuttingPoint(cm, from, from, -1);
      if (cut$1) {
        display.view = display.view.slice(0, cut$1.index);
        display.viewTo = cut$1.lineN;
      } else {
        resetView(cm);
      }
    } else { // Gap in the middle
      var cutTop = viewCuttingPoint(cm, from, from, -1);
      var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
      if (cutTop && cutBot) {
        display.view = display.view.slice(0, cutTop.index)
          .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
          .concat(display.view.slice(cutBot.index));
        display.viewTo += lendiff;
      } else {
        resetView(cm);
      }
    }

    var ext = display.externalMeasured;
    if (ext) {
      if (to < ext.lineN)
        { ext.lineN += lendiff; }
      else if (from < ext.lineN + ext.size)
        { display.externalMeasured = null; }
    }
  }

  // Register a change to a single line. Type must be one of "text",
  // "gutter", "class", "widget"
  function regLineChange(cm, line, type) {
    cm.curOp.viewChanged = true;
    var display = cm.display, ext = cm.display.externalMeasured;
    if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
      { display.externalMeasured = null; }

    if (line < display.viewFrom || line >= display.viewTo) { return }
    var lineView = display.view[findViewIndex(cm, line)];
    if (lineView.node == null) { return }
    var arr = lineView.changes || (lineView.changes = []);
    if (indexOf(arr, type) == -1) { arr.push(type); }
  }

  // Clear the view.
  function resetView(cm) {
    cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
    cm.display.view = [];
    cm.display.viewOffset = 0;
  }

  function viewCuttingPoint(cm, oldN, newN, dir) {
    var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
    if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
      { return {index: index, lineN: newN} }
    var n = cm.display.viewFrom;
    for (var i = 0; i < index; i++)
      { n += view[i].size; }
    if (n != oldN) {
      if (dir > 0) {
        if (index == view.length - 1) { return null }
        diff = (n + view[index].size) - oldN;
        index++;
      } else {
        diff = n - oldN;
      }
      oldN += diff; newN += diff;
    }
    while (visualLineNo(cm.doc, newN) != newN) {
      if (index == (dir < 0 ? 0 : view.length - 1)) { return null }
      newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
      index += dir;
    }
    return {index: index, lineN: newN}
  }

  // Force the view to cover a given range, adding empty view element
  // or clipping off existing ones as needed.
  function adjustView(cm, from, to) {
    var display = cm.display, view = display.view;
    if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
      display.view = buildViewArray(cm, from, to);
      display.viewFrom = from;
    } else {
      if (display.viewFrom > from)
        { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); }
      else if (display.viewFrom < from)
        { display.view = display.view.slice(findViewIndex(cm, from)); }
      display.viewFrom = from;
      if (display.viewTo < to)
        { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); }
      else if (display.viewTo > to)
        { display.view = display.view.slice(0, findViewIndex(cm, to)); }
    }
    display.viewTo = to;
  }

  // Count the number of lines in the view whose DOM representation is
  // out of date (or nonexistent).
  function countDirtyView(cm) {
    var view = cm.display.view, dirty = 0;
    for (var i = 0; i < view.length; i++) {
      var lineView = view[i];
      if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; }
    }
    return dirty
  }

  function updateSelection(cm) {
    cm.display.input.showSelection(cm.display.input.prepareSelection());
  }

  function prepareSelection(cm, primary) {
    if ( primary === void 0 ) primary = true;

    var doc = cm.doc, result = {};
    var curFragment = result.cursors = document.createDocumentFragment();
    var selFragment = result.selection = document.createDocumentFragment();

    for (var i = 0; i < doc.sel.ranges.length; i++) {
      if (!primary && i == doc.sel.primIndex) { continue }
      var range = doc.sel.ranges[i];
      if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue }
      var collapsed = range.empty();
      if (collapsed || cm.options.showCursorWhenSelecting)
        { drawSelectionCursor(cm, range.head, curFragment); }
      if (!collapsed)
        { drawSelectionRange(cm, range, selFragment); }
    }
    return result
  }

  // Draws a cursor for the given range
  function drawSelectionCursor(cm, head, output) {
    var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine);

    var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
    cursor.style.left = pos.left + "px";
    cursor.style.top = pos.top + "px";
    cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";

    if (pos.other) {
      // Secondary cursor, shown when on a 'jump' in bi-directional text
      var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
      otherCursor.style.display = "";
      otherCursor.style.left = pos.other.left + "px";
      otherCursor.style.top = pos.other.top + "px";
      otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
    }
  }

  function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }

  // Draws the given range as a highlighted selection
  function drawSelectionRange(cm, range, output) {
    var display = cm.display, doc = cm.doc;
    var fragment = document.createDocumentFragment();
    var padding = paddingH(cm.display), leftSide = padding.left;
    var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;
    var docLTR = doc.direction == "ltr";

    function add(left, top, width, bottom) {
      if (top < 0) { top = 0; }
      top = Math.round(top);
      bottom = Math.round(bottom);
      fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n                             top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n                             height: " + (bottom - top) + "px")));
    }

    function drawForLine(line, fromArg, toArg) {
      var lineObj = getLine(doc, line);
      var lineLen = lineObj.text.length;
      var start, end;
      function coords(ch, bias) {
        return charCoords(cm, Pos(line, ch), "div", lineObj, bias)
      }

      function wrapX(pos, dir, side) {
        var extent = wrappedLineExtentChar(cm, lineObj, null, pos);
        var prop = (dir == "ltr") == (side == "after") ? "left" : "right";
        var ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1);
        return coords(ch, prop)[prop]
      }

      var order = getOrder(lineObj, doc.direction);
      iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) {
        var ltr = dir == "ltr";
        var fromPos = coords(from, ltr ? "left" : "right");
        var toPos = coords(to - 1, ltr ? "right" : "left");

        var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen;
        var first = i == 0, last = !order || i == order.length - 1;
        if (toPos.top - fromPos.top <= 3) { // Single line
          var openLeft = (docLTR ? openStart : openEnd) && first;
          var openRight = (docLTR ? openEnd : openStart) && last;
          var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left;
          var right = openRight ? rightSide : (ltr ? toPos : fromPos).right;
          add(left, fromPos.top, right - left, fromPos.bottom);
        } else { // Multiple lines
          var topLeft, topRight, botLeft, botRight;
          if (ltr) {
            topLeft = docLTR && openStart && first ? leftSide : fromPos.left;
            topRight = docLTR ? rightSide : wrapX(from, dir, "before");
            botLeft = docLTR ? leftSide : wrapX(to, dir, "after");
            botRight = docLTR && openEnd && last ? rightSide : toPos.right;
          } else {
            topLeft = !docLTR ? leftSide : wrapX(from, dir, "before");
            topRight = !docLTR && openStart && first ? rightSide : fromPos.right;
            botLeft = !docLTR && openEnd && last ? leftSide : toPos.left;
            botRight = !docLTR ? rightSide : wrapX(to, dir, "after");
          }
          add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom);
          if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); }
          add(botLeft, toPos.top, botRight - botLeft, toPos.bottom);
        }

        if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; }
        if (cmpCoords(toPos, start) < 0) { start = toPos; }
        if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; }
        if (cmpCoords(toPos, end) < 0) { end = toPos; }
      });
      return {start: start, end: end}
    }

    var sFrom = range.from(), sTo = range.to();
    if (sFrom.line == sTo.line) {
      drawForLine(sFrom.line, sFrom.ch, sTo.ch);
    } else {
      var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
      var singleVLine = visualLine(fromLine) == visualLine(toLine);
      var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
      var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
      if (singleVLine) {
        if (leftEnd.top < rightStart.top - 2) {
          add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
          add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
        } else {
          add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
        }
      }
      if (leftEnd.bottom < rightStart.top)
        { add(leftSide, leftEnd.bottom, null, rightStart.top); }
    }

    output.appendChild(fragment);
  }

  // Cursor-blinking
  function restartBlink(cm) {
    if (!cm.state.focused) { return }
    var display = cm.display;
    clearInterval(display.blinker);
    var on = true;
    display.cursorDiv.style.visibility = "";
    if (cm.options.cursorBlinkRate > 0)
      { display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; },
        cm.options.cursorBlinkRate); }
    else if (cm.options.cursorBlinkRate < 0)
      { display.cursorDiv.style.visibility = "hidden"; }
  }

  function ensureFocus(cm) {
    if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }
  }

  function delayBlurEvent(cm) {
    cm.state.delayingBlurEvent = true;
    setTimeout(function () { if (cm.state.delayingBlurEvent) {
      cm.state.delayingBlurEvent = false;
      onBlur(cm);
    } }, 100);
  }

  function onFocus(cm, e) {
    if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false; }

    if (cm.options.readOnly == "nocursor") { return }
    if (!cm.state.focused) {
      signal(cm, "focus", cm, e);
      cm.state.focused = true;
      addClass(cm.display.wrapper, "CodeMirror-focused");
      // This test prevents this from firing when a context
      // menu is closed (since the input reset would kill the
      // select-all detection hack)
      if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
        cm.display.input.reset();
        if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730
      }
      cm.display.input.receivedFocus();
    }
    restartBlink(cm);
  }
  function onBlur(cm, e) {
    if (cm.state.delayingBlurEvent) { return }

    if (cm.state.focused) {
      signal(cm, "blur", cm, e);
      cm.state.focused = false;
      rmClass(cm.display.wrapper, "CodeMirror-focused");
    }
    clearInterval(cm.display.blinker);
    setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150);
  }

  // Read the actual heights of the rendered lines, and update their
  // stored heights to match.
  function updateHeightsInViewport(cm) {
    var display = cm.display;
    var prevBottom = display.lineDiv.offsetTop;
    for (var i = 0; i < display.view.length; i++) {
      var cur = display.view[i], wrapping = cm.options.lineWrapping;
      var height = (void 0), width = 0;
      if (cur.hidden) { continue }
      if (ie && ie_version < 8) {
        var bot = cur.node.offsetTop + cur.node.offsetHeight;
        height = bot - prevBottom;
        prevBottom = bot;
      } else {
        var box = cur.node.getBoundingClientRect();
        height = box.bottom - box.top;
        // Check that lines don't extend past the right of the current
        // editor width
        if (!wrapping && cur.text.firstChild)
          { width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; }
      }
      var diff = cur.line.height - height;
      if (diff > .005 || diff < -.005) {
        updateLineHeight(cur.line, height);
        updateWidgetHeight(cur.line);
        if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)
          { updateWidgetHeight(cur.rest[j]); } }
      }
      if (width > cm.display.sizerWidth) {
        var chWidth = Math.ceil(width / charWidth(cm.display));
        if (chWidth > cm.display.maxLineLength) {
          cm.display.maxLineLength = chWidth;
          cm.display.maxLine = cur.line;
          cm.display.maxLineChanged = true;
        }
      }
    }
  }

  // Read and store the height of line widgets associated with the
  // given line.
  function updateWidgetHeight(line) {
    if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) {
      var w = line.widgets[i], parent = w.node.parentNode;
      if (parent) { w.height = parent.offsetHeight; }
    } }
  }

  // Compute the lines that are visible in a given viewport (defaults
  // the the current scroll position). viewport may contain top,
  // height, and ensure (see op.scrollToPos) properties.
  function visibleLines(display, doc, viewport) {
    var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
    top = Math.floor(top - paddingTop(display));
    var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;

    var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
    // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
    // forces those lines into the viewport (if possible).
    if (viewport && viewport.ensure) {
      var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
      if (ensureFrom < from) {
        from = ensureFrom;
        to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);
      } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
        from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);
        to = ensureTo;
      }
    }
    return {from: from, to: Math.max(to, from + 1)}
  }

  // SCROLLING THINGS INTO VIEW

  // If an editor sits on the top or bottom of the window, partially
  // scrolled out of view, this ensures that the cursor is visible.
  function maybeScrollWindow(cm, rect) {
    if (signalDOMEvent(cm, "scrollCursorIntoView")) { return }

    var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
    if (rect.top + box.top < 0) { doScroll = true; }
    else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false; }
    if (doScroll != null && !phantom) {
      var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n                         top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n                         height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n                         left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;"));
      cm.display.lineSpace.appendChild(scrollNode);
      scrollNode.scrollIntoView(doScroll);
      cm.display.lineSpace.removeChild(scrollNode);
    }
  }

  // Scroll a given position into view (immediately), verifying that
  // it actually became visible (as line heights are accurately
  // measured, the position of something may 'drift' during drawing).
  function scrollPosIntoView(cm, pos, end, margin) {
    if (margin == null) { margin = 0; }
    var rect;
    if (!cm.options.lineWrapping && pos == end) {
      // Set pos and end to the cursor positions around the character pos sticks to
      // If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch
      // If pos == Pos(_, 0, "before"), pos and end are unchanged
      pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos;
      end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos;
    }
    for (var limit = 0; limit < 5; limit++) {
      var changed = false;
      var coords = cursorCoords(cm, pos);
      var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
      rect = {left: Math.min(coords.left, endCoords.left),
              top: Math.min(coords.top, endCoords.top) - margin,
              right: Math.max(coords.left, endCoords.left),
              bottom: Math.max(coords.bottom, endCoords.bottom) + margin};
      var scrollPos = calculateScrollPos(cm, rect);
      var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
      if (scrollPos.scrollTop != null) {
        updateScrollTop(cm, scrollPos.scrollTop);
        if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; }
      }
      if (scrollPos.scrollLeft != null) {
        setScrollLeft(cm, scrollPos.scrollLeft);
        if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; }
      }
      if (!changed) { break }
    }
    return rect
  }

  // Scroll a given set of coordinates into view (immediately).
  function scrollIntoView(cm, rect) {
    var scrollPos = calculateScrollPos(cm, rect);
    if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); }
    if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); }
  }

  // Calculate a new scroll position needed to scroll the given
  // rectangle into view. Returns an object with scrollTop and
  // scrollLeft properties. When these are undefined, the
  // vertical/horizontal position does not need to be adjusted.
  function calculateScrollPos(cm, rect) {
    var display = cm.display, snapMargin = textHeight(cm.display);
    if (rect.top < 0) { rect.top = 0; }
    var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
    var screen = displayHeight(cm), result = {};
    if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; }
    var docBottom = cm.doc.height + paddingVert(display);
    var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin;
    if (rect.top < screentop) {
      result.scrollTop = atTop ? 0 : rect.top;
    } else if (rect.bottom > screentop + screen) {
      var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen);
      if (newTop != screentop) { result.scrollTop = newTop; }
    }

    var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;
    var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);
    var tooWide = rect.right - rect.left > screenw;
    if (tooWide) { rect.right = rect.left + screenw; }
    if (rect.left < 10)
      { result.scrollLeft = 0; }
    else if (rect.left < screenleft)
      { result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10)); }
    else if (rect.right > screenw + screenleft - 3)
      { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; }
    return result
  }

  // Store a relative adjustment to the scroll position in the current
  // operation (to be applied when the operation finishes).
  function addToScrollTop(cm, top) {
    if (top == null) { return }
    resolveScrollToPos(cm);
    cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
  }

  // Make sure that at the end of the operation the current cursor is
  // shown.
  function ensureCursorVisible(cm) {
    resolveScrollToPos(cm);
    var cur = cm.getCursor();
    cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin};
  }

  function scrollToCoords(cm, x, y) {
    if (x != null || y != null) { resolveScrollToPos(cm); }
    if (x != null) { cm.curOp.scrollLeft = x; }
    if (y != null) { cm.curOp.scrollTop = y; }
  }

  function scrollToRange(cm, range) {
    resolveScrollToPos(cm);
    cm.curOp.scrollToPos = range;
  }

  // When an operation has its scrollToPos property set, and another
  // scroll action is applied before the end of the operation, this
  // 'simulates' scrolling that position into view in a cheap way, so
  // that the effect of intermediate scroll commands is not ignored.
  function resolveScrollToPos(cm) {
    var range = cm.curOp.scrollToPos;
    if (range) {
      cm.curOp.scrollToPos = null;
      var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
      scrollToCoordsRange(cm, from, to, range.margin);
    }
  }

  function scrollToCoordsRange(cm, from, to, margin) {
    var sPos = calculateScrollPos(cm, {
      left: Math.min(from.left, to.left),
      top: Math.min(from.top, to.top) - margin,
      right: Math.max(from.right, to.right),
      bottom: Math.max(from.bottom, to.bottom) + margin
    });
    scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop);
  }

  // Sync the scrollable area and scrollbars, ensure the viewport
  // covers the visible area.
  function updateScrollTop(cm, val) {
    if (Math.abs(cm.doc.scrollTop - val) < 2) { return }
    if (!gecko) { updateDisplaySimple(cm, {top: val}); }
    setScrollTop(cm, val, true);
    if (gecko) { updateDisplaySimple(cm); }
    startWorker(cm, 100);
  }

  function setScrollTop(cm, val, forceScroll) {
    val = Math.max(0, Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val));
    if (cm.display.scroller.scrollTop == val && !forceScroll) { return }
    cm.doc.scrollTop = val;
    cm.display.scrollbars.setScrollTop(val);
    if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; }
  }

  // Sync scroller and scrollbar, ensure the gutter elements are
  // aligned.
  function setScrollLeft(cm, val, isScroller, forceScroll) {
    val = Math.max(0, Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth));
    if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }
    cm.doc.scrollLeft = val;
    alignHorizontally(cm);
    if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; }
    cm.display.scrollbars.setScrollLeft(val);
  }

  // SCROLLBARS

  // Prepare DOM reads needed to update the scrollbars. Done in one
  // shot to minimize update/measure roundtrips.
  function measureForScrollbars(cm) {
    var d = cm.display, gutterW = d.gutters.offsetWidth;
    var docH = Math.round(cm.doc.height + paddingVert(cm.display));
    return {
      clientHeight: d.scroller.clientHeight,
      viewHeight: d.wrapper.clientHeight,
      scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
      viewWidth: d.wrapper.clientWidth,
      barLeft: cm.options.fixedGutter ? gutterW : 0,
      docHeight: docH,
      scrollHeight: docH + scrollGap(cm) + d.barHeight,
      nativeBarWidth: d.nativeBarWidth,
      gutterWidth: gutterW
    }
  }

  var NativeScrollbars = function(place, scroll, cm) {
    this.cm = cm;
    var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
    var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
    vert.tabIndex = horiz.tabIndex = -1;
    place(vert); place(horiz);

    on(vert, "scroll", function () {
      if (vert.clientHeight) { scroll(vert.scrollTop, "vertical"); }
    });
    on(horiz, "scroll", function () {
      if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal"); }
    });

    this.checkedZeroWidth = false;
    // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
    if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; }
  };

  NativeScrollbars.prototype.update = function (measure) {
    var needsH = measure.scrollWidth > measure.clientWidth + 1;
    var needsV = measure.scrollHeight > measure.clientHeight + 1;
    var sWidth = measure.nativeBarWidth;

    if (needsV) {
      this.vert.style.display = "block";
      this.vert.style.bottom = needsH ? sWidth + "px" : "0";
      var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
      // A bug in IE8 can cause this value to be negative, so guard it.
      this.vert.firstChild.style.height =
        Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
    } else {
      this.vert.style.display = "";
      this.vert.firstChild.style.height = "0";
    }

    if (needsH) {
      this.horiz.style.display = "block";
      this.horiz.style.right = needsV ? sWidth + "px" : "0";
      this.horiz.style.left = measure.barLeft + "px";
      var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
      this.horiz.firstChild.style.width =
        Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
    } else {
      this.horiz.style.display = "";
      this.horiz.firstChild.style.width = "0";
    }

    if (!this.checkedZeroWidth && measure.clientHeight > 0) {
      if (sWidth == 0) { this.zeroWidthHack(); }
      this.checkedZeroWidth = true;
    }

    return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}
  };

  NativeScrollbars.prototype.setScrollLeft = function (pos) {
    if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; }
    if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz"); }
  };

  NativeScrollbars.prototype.setScrollTop = function (pos) {
    if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; }
    if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert"); }
  };

  NativeScrollbars.prototype.zeroWidthHack = function () {
    var w = mac && !mac_geMountainLion ? "12px" : "18px";
    this.horiz.style.height = this.vert.style.width = w;
    this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none";
    this.disableHoriz = new Delayed;
    this.disableVert = new Delayed;
  };

  NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {
    bar.style.pointerEvents = "auto";
    function maybeDisable() {
      // To find out whether the scrollbar is still visible, we
      // check whether the element under the pixel in the bottom
      // right corner of the scrollbar box is the scrollbar box
      // itself (when the bar is still visible) or its filler child
      // (when the bar is hidden). If it is still visible, we keep
      // it enabled, if it's hidden, we disable pointer events.
      var box = bar.getBoundingClientRect();
      var elt = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)
          : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);
      if (elt != bar) { bar.style.pointerEvents = "none"; }
      else { delay.set(1000, maybeDisable); }
    }
    delay.set(1000, maybeDisable);
  };

  NativeScrollbars.prototype.clear = function () {
    var parent = this.horiz.parentNode;
    parent.removeChild(this.horiz);
    parent.removeChild(this.vert);
  };

  var NullScrollbars = function () {};

  NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };
  NullScrollbars.prototype.setScrollLeft = function () {};
  NullScrollbars.prototype.setScrollTop = function () {};
  NullScrollbars.prototype.clear = function () {};

  function updateScrollbars(cm, measure) {
    if (!measure) { measure = measureForScrollbars(cm); }
    var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;
    updateScrollbarsInner(cm, measure);
    for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
      if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
        { updateHeightsInViewport(cm); }
      updateScrollbarsInner(cm, measureForScrollbars(cm));
      startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;
    }
  }

  // Re-synchronize the fake scrollbars with the actual size of the
  // content.
  function updateScrollbarsInner(cm, measure) {
    var d = cm.display;
    var sizes = d.scrollbars.update(measure);

    d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
    d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
    d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent";

    if (sizes.right && sizes.bottom) {
      d.scrollbarFiller.style.display = "block";
      d.scrollbarFiller.style.height = sizes.bottom + "px";
      d.scrollbarFiller.style.width = sizes.right + "px";
    } else { d.scrollbarFiller.style.display = ""; }
    if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
      d.gutterFiller.style.display = "block";
      d.gutterFiller.style.height = sizes.bottom + "px";
      d.gutterFiller.style.width = measure.gutterWidth + "px";
    } else { d.gutterFiller.style.display = ""; }
  }

  var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};

  function initScrollbars(cm) {
    if (cm.display.scrollbars) {
      cm.display.scrollbars.clear();
      if (cm.display.scrollbars.addClass)
        { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
    }

    cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {
      cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
      // Prevent clicks in the scrollbars from killing focus
      on(node, "mousedown", function () {
        if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); }
      });
      node.setAttribute("cm-not-content", "true");
    }, function (pos, axis) {
      if (axis == "horizontal") { setScrollLeft(cm, pos); }
      else { updateScrollTop(cm, pos); }
    }, cm);
    if (cm.display.scrollbars.addClass)
      { addClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
  }

  // Operations are used to wrap a series of changes to the editor
  // state in such a way that each change won't have to update the
  // cursor and display (which would be awkward, slow, and
  // error-prone). Instead, display updates are batched and then all
  // combined and executed at once.

  var nextOpId = 0;
  // Start a new operation.
  function startOperation(cm) {
    cm.curOp = {
      cm: cm,
      viewChanged: false,      // Flag that indicates that lines might need to be redrawn
      startHeight: cm.doc.height, // Used to detect need to update scrollbar
      forceUpdate: false,      // Used to force a redraw
      updateInput: 0,       // Whether to reset the input textarea
      typing: false,           // Whether this reset should be careful to leave existing text (for compositing)
      changeObjs: null,        // Accumulated changes, for firing change events
      cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
      cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
      selectionChanged: false, // Whether the selection needs to be redrawn
      updateMaxLine: false,    // Set when the widest line needs to be determined anew
      scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
      scrollToPos: null,       // Used to scroll to a specific position
      focus: false,
      id: ++nextOpId           // Unique ID
    };
    pushOperation(cm.curOp);
  }

  // Finish an operation, updating the display and signalling delayed events
  function endOperation(cm) {
    var op = cm.curOp;
    if (op) { finishOperation(op, function (group) {
      for (var i = 0; i < group.ops.length; i++)
        { group.ops[i].cm.curOp = null; }
      endOperations(group);
    }); }
  }

  // The DOM updates done when an operation finishes are batched so
  // that the minimum number of relayouts are required.
  function endOperations(group) {
    var ops = group.ops;
    for (var i = 0; i < ops.length; i++) // Read DOM
      { endOperation_R1(ops[i]); }
    for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)
      { endOperation_W1(ops[i$1]); }
    for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM
      { endOperation_R2(ops[i$2]); }
    for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)
      { endOperation_W2(ops[i$3]); }
    for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM
      { endOperation_finish(ops[i$4]); }
  }

  function endOperation_R1(op) {
    var cm = op.cm, display = cm.display;
    maybeClipScrollbars(cm);
    if (op.updateMaxLine) { findMaxLine(cm); }

    op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
      op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
                         op.scrollToPos.to.line >= display.viewTo) ||
      display.maxLineChanged && cm.options.lineWrapping;
    op.update = op.mustUpdate &&
      new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
  }

  function endOperation_W1(op) {
    op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
  }

  function endOperation_R2(op) {
    var cm = op.cm, display = cm.display;
    if (op.updatedDisplay) { updateHeightsInViewport(cm); }

    op.barMeasure = measureForScrollbars(cm);

    // If the max line changed since it was last measured, measure it,
    // and ensure the document's width matches it.
    // updateDisplay_W2 will use these properties to do the actual resizing
    if (display.maxLineChanged && !cm.options.lineWrapping) {
      op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
      cm.display.sizerWidth = op.adjustWidthTo;
      op.barMeasure.scrollWidth =
        Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
      op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
    }

    if (op.updatedDisplay || op.selectionChanged)
      { op.preparedSelection = display.input.prepareSelection(); }
  }

  function endOperation_W2(op) {
    var cm = op.cm;

    if (op.adjustWidthTo != null) {
      cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
      if (op.maxScrollLeft < cm.doc.scrollLeft)
        { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); }
      cm.display.maxLineChanged = false;
    }

    var takeFocus = op.focus && op.focus == activeElt();
    if (op.preparedSelection)
      { cm.display.input.showSelection(op.preparedSelection, takeFocus); }
    if (op.updatedDisplay || op.startHeight != cm.doc.height)
      { updateScrollbars(cm, op.barMeasure); }
    if (op.updatedDisplay)
      { setDocumentHeight(cm, op.barMeasure); }

    if (op.selectionChanged) { restartBlink(cm); }

    if (cm.state.focused && op.updateInput)
      { cm.display.input.reset(op.typing); }
    if (takeFocus) { ensureFocus(op.cm); }
  }

  function endOperation_finish(op) {
    var cm = op.cm, display = cm.display, doc = cm.doc;

    if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); }

    // Abort mouse wheel delta measurement, when scrolling explicitly
    if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
      { display.wheelStartX = display.wheelStartY = null; }

    // Propagate the scroll position to the actual DOM scroller
    if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); }

    if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); }
    // If we need to scroll a specific position into view, do so.
    if (op.scrollToPos) {
      var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
                                   clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
      maybeScrollWindow(cm, rect);
    }

    // Fire events for markers that are hidden/unidden by editing or
    // undoing
    var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
    if (hidden) { for (var i = 0; i < hidden.length; ++i)
      { if (!hidden[i].lines.length) { signal(hidden[i], "hide"); } } }
    if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)
      { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide"); } } }

    if (display.wrapper.offsetHeight)
      { doc.scrollTop = cm.display.scroller.scrollTop; }

    // Fire change events, and delayed event handlers
    if (op.changeObjs)
      { signal(cm, "changes", cm, op.changeObjs); }
    if (op.update)
      { op.update.finish(); }
  }

  // Run the given function in an operation
  function runInOp(cm, f) {
    if (cm.curOp) { return f() }
    startOperation(cm);
    try { return f() }
    finally { endOperation(cm); }
  }
  // Wraps a function in an operation. Returns the wrapped function.
  function operation(cm, f) {
    return function() {
      if (cm.curOp) { return f.apply(cm, arguments) }
      startOperation(cm);
      try { return f.apply(cm, arguments) }
      finally { endOperation(cm); }
    }
  }
  // Used to add methods to editor and doc instances, wrapping them in
  // operations.
  function methodOp(f) {
    return function() {
      if (this.curOp) { return f.apply(this, arguments) }
      startOperation(this);
      try { return f.apply(this, arguments) }
      finally { endOperation(this); }
    }
  }
  function docMethodOp(f) {
    return function() {
      var cm = this.cm;
      if (!cm || cm.curOp) { return f.apply(this, arguments) }
      startOperation(cm);
      try { return f.apply(this, arguments) }
      finally { endOperation(cm); }
    }
  }

  // HIGHLIGHT WORKER

  function startWorker(cm, time) {
    if (cm.doc.highlightFrontier < cm.display.viewTo)
      { cm.state.highlight.set(time, bind(highlightWorker, cm)); }
  }

  function highlightWorker(cm) {
    var doc = cm.doc;
    if (doc.highlightFrontier >= cm.display.viewTo) { return }
    var end = +new Date + cm.options.workTime;
    var context = getContextBefore(cm, doc.highlightFrontier);
    var changedLines = [];

    doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {
      if (context.line >= cm.display.viewFrom) { // Visible
        var oldStyles = line.styles;
        var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null;
        var highlighted = highlightLine(cm, line, context, true);
        if (resetState) { context.state = resetState; }
        line.styles = highlighted.styles;
        var oldCls = line.styleClasses, newCls = highlighted.classes;
        if (newCls) { line.styleClasses = newCls; }
        else if (oldCls) { line.styleClasses = null; }
        var ischange = !oldStyles || oldStyles.length != line.styles.length ||
          oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
        for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; }
        if (ischange) { changedLines.push(context.line); }
        line.stateAfter = context.save();
        context.nextLine();
      } else {
        if (line.text.length <= cm.options.maxHighlightLength)
          { processLine(cm, line.text, context); }
        line.stateAfter = context.line % 5 == 0 ? context.save() : null;
        context.nextLine();
      }
      if (+new Date > end) {
        startWorker(cm, cm.options.workDelay);
        return true
      }
    });
    doc.highlightFrontier = context.line;
    doc.modeFrontier = Math.max(doc.modeFrontier, context.line);
    if (changedLines.length) { runInOp(cm, function () {
      for (var i = 0; i < changedLines.length; i++)
        { regLineChange(cm, changedLines[i], "text"); }
    }); }
  }

  // DISPLAY DRAWING

  var DisplayUpdate = function(cm, viewport, force) {
    var display = cm.display;

    this.viewport = viewport;
    // Store some values that we'll need later (but don't want to force a relayout for)
    this.visible = visibleLines(display, cm.doc, viewport);
    this.editorIsHidden = !display.wrapper.offsetWidth;
    this.wrapperHeight = display.wrapper.clientHeight;
    this.wrapperWidth = display.wrapper.clientWidth;
    this.oldDisplayWidth = displayWidth(cm);
    this.force = force;
    this.dims = getDimensions(cm);
    this.events = [];
  };

  DisplayUpdate.prototype.signal = function (emitter, type) {
    if (hasHandler(emitter, type))
      { this.events.push(arguments); }
  };
  DisplayUpdate.prototype.finish = function () {
    for (var i = 0; i < this.events.length; i++)
      { signal.apply(null, this.events[i]); }
  };

  function maybeClipScrollbars(cm) {
    var display = cm.display;
    if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
      display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
      display.heightForcer.style.height = scrollGap(cm) + "px";
      display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
      display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
      display.scrollbarsClipped = true;
    }
  }

  function selectionSnapshot(cm) {
    if (cm.hasFocus()) { return null }
    var active = activeElt();
    if (!active || !contains(cm.display.lineDiv, active)) { return null }
    var result = {activeElt: active};
    if (window.getSelection) {
      var sel = window.getSelection();
      if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {
        result.anchorNode = sel.anchorNode;
        result.anchorOffset = sel.anchorOffset;
        result.focusNode = sel.focusNode;
        result.focusOffset = sel.focusOffset;
      }
    }
    return result
  }

  function restoreSelection(snapshot) {
    if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return }
    snapshot.activeElt.focus();
    if (!/^(INPUT|TEXTAREA)$/.test(snapshot.activeElt.nodeName) &&
        snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {
      var sel = window.getSelection(), range = document.createRange();
      range.setEnd(snapshot.anchorNode, snapshot.anchorOffset);
      range.collapse(false);
      sel.removeAllRanges();
      sel.addRange(range);
      sel.extend(snapshot.focusNode, snapshot.focusOffset);
    }
  }

  // Does the actual updating of the line display. Bails out
  // (returning false) when there is nothing to be done and forced is
  // false.
  function updateDisplayIfNeeded(cm, update) {
    var display = cm.display, doc = cm.doc;

    if (update.editorIsHidden) {
      resetView(cm);
      return false
    }

    // Bail out if the visible area is already rendered and nothing changed.
    if (!update.force &&
        update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
        display.renderedView == display.view && countDirtyView(cm) == 0)
      { return false }

    if (maybeUpdateLineNumberWidth(cm)) {
      resetView(cm);
      update.dims = getDimensions(cm);
    }

    // Compute a suitable new viewport (from & to)
    var end = doc.first + doc.size;
    var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
    var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
    if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); }
    if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); }
    if (sawCollapsedSpans) {
      from = visualLineNo(cm.doc, from);
      to = visualLineEndNo(cm.doc, to);
    }

    var different = from != display.viewFrom || to != display.viewTo ||
      display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
    adjustView(cm, from, to);

    display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
    // Position the mover div to align with the current scroll position
    cm.display.mover.style.top = display.viewOffset + "px";

    var toUpdate = countDirtyView(cm);
    if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
      { return false }

    // For big changes, we hide the enclosing element during the
    // update, since that speeds up the operations on most browsers.
    var selSnapshot = selectionSnapshot(cm);
    if (toUpdate > 4) { display.lineDiv.style.display = "none"; }
    patchDisplay(cm, display.updateLineNumbers, update.dims);
    if (toUpdate > 4) { display.lineDiv.style.display = ""; }
    display.renderedView = display.view;
    // There might have been a widget with a focused element that got
    // hidden or updated, if so re-focus it.
    restoreSelection(selSnapshot);

    // Prevent selection and cursors from interfering with the scroll
    // width and height.
    removeChildren(display.cursorDiv);
    removeChildren(display.selectionDiv);
    display.gutters.style.height = display.sizer.style.minHeight = 0;

    if (different) {
      display.lastWrapHeight = update.wrapperHeight;
      display.lastWrapWidth = update.wrapperWidth;
      startWorker(cm, 400);
    }

    display.updateLineNumbers = null;

    return true
  }

  function postUpdateDisplay(cm, update) {
    var viewport = update.viewport;

    for (var first = true;; first = false) {
      if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
        // Clip forced viewport to actual scrollable area.
        if (viewport && viewport.top != null)
          { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; }
        // Updated line heights might result in the drawn area not
        // actually covering the viewport. Keep looping until it does.
        update.visible = visibleLines(cm.display, cm.doc, viewport);
        if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
          { break }
      } else if (first) {
        update.visible = visibleLines(cm.display, cm.doc, viewport);
      }
      if (!updateDisplayIfNeeded(cm, update)) { break }
      updateHeightsInViewport(cm);
      var barMeasure = measureForScrollbars(cm);
      updateSelection(cm);
      updateScrollbars(cm, barMeasure);
      setDocumentHeight(cm, barMeasure);
      update.force = false;
    }

    update.signal(cm, "update", cm);
    if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
      update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
      cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
    }
  }

  function updateDisplaySimple(cm, viewport) {
    var update = new DisplayUpdate(cm, viewport);
    if (updateDisplayIfNeeded(cm, update)) {
      updateHeightsInViewport(cm);
      postUpdateDisplay(cm, update);
      var barMeasure = measureForScrollbars(cm);
      updateSelection(cm);
      updateScrollbars(cm, barMeasure);
      setDocumentHeight(cm, barMeasure);
      update.finish();
    }
  }

  // Sync the actual display DOM structure with display.view, removing
  // nodes for lines that are no longer in view, and creating the ones
  // that are not there yet, and updating the ones that are out of
  // date.
  function patchDisplay(cm, updateNumbersFrom, dims) {
    var display = cm.display, lineNumbers = cm.options.lineNumbers;
    var container = display.lineDiv, cur = container.firstChild;

    function rm(node) {
      var next = node.nextSibling;
      // Works around a throw-scroll bug in OS X Webkit
      if (webkit && mac && cm.display.currentWheelTarget == node)
        { node.style.display = "none"; }
      else
        { node.parentNode.removeChild(node); }
      return next
    }

    var view = display.view, lineN = display.viewFrom;
    // Loop over the elements in the view, syncing cur (the DOM nodes
    // in display.lineDiv) with the view as we go.
    for (var i = 0; i < view.length; i++) {
      var lineView = view[i];
      if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
        var node = buildLineElement(cm, lineView, lineN, dims);
        container.insertBefore(node, cur);
      } else { // Already drawn
        while (cur != lineView.node) { cur = rm(cur); }
        var updateNumber = lineNumbers && updateNumbersFrom != null &&
          updateNumbersFrom <= lineN && lineView.lineNumber;
        if (lineView.changes) {
          if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false; }
          updateLineForChanges(cm, lineView, lineN, dims);
        }
        if (updateNumber) {
          removeChildren(lineView.lineNumber);
          lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
        }
        cur = lineView.node.nextSibling;
      }
      lineN += lineView.size;
    }
    while (cur) { cur = rm(cur); }
  }

  function updateGutterSpace(display) {
    var width = display.gutters.offsetWidth;
    display.sizer.style.marginLeft = width + "px";
  }

  function setDocumentHeight(cm, measure) {
    cm.display.sizer.style.minHeight = measure.docHeight + "px";
    cm.display.heightForcer.style.top = measure.docHeight + "px";
    cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px";
  }

  // Re-align line numbers and gutter marks to compensate for
  // horizontal scrolling.
  function alignHorizontally(cm) {
    var display = cm.display, view = display.view;
    if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }
    var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
    var gutterW = display.gutters.offsetWidth, left = comp + "px";
    for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {
      if (cm.options.fixedGutter) {
        if (view[i].gutter)
          { view[i].gutter.style.left = left; }
        if (view[i].gutterBackground)
          { view[i].gutterBackground.style.left = left; }
      }
      var align = view[i].alignable;
      if (align) { for (var j = 0; j < align.length; j++)
        { align[j].style.left = left; } }
    } }
    if (cm.options.fixedGutter)
      { display.gutters.style.left = (comp + gutterW) + "px"; }
  }

  // Used to ensure that the line number gutter is still the right
  // size for the current document size. Returns true when an update
  // is needed.
  function maybeUpdateLineNumberWidth(cm) {
    if (!cm.options.lineNumbers) { return false }
    var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
    if (last.length != display.lineNumChars) {
      var test = display.measure.appendChild(elt("div", [elt("div", last)],
                                                 "CodeMirror-linenumber CodeMirror-gutter-elt"));
      var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
      display.lineGutter.style.width = "";
      display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
      display.lineNumWidth = display.lineNumInnerWidth + padding;
      display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
      display.lineGutter.style.width = display.lineNumWidth + "px";
      updateGutterSpace(cm.display);
      return true
    }
    return false
  }

  function getGutters(gutters, lineNumbers) {
    var result = [], sawLineNumbers = false;
    for (var i = 0; i < gutters.length; i++) {
      var name = gutters[i], style = null;
      if (typeof name != "string") { style = name.style; name = name.className; }
      if (name == "CodeMirror-linenumbers") {
        if (!lineNumbers) { continue }
        else { sawLineNumbers = true; }
      }
      result.push({className: name, style: style});
    }
    if (lineNumbers && !sawLineNumbers) { result.push({className: "CodeMirror-linenumbers", style: null}); }
    return result
  }

  // Rebuild the gutter elements, ensure the margin to the left of the
  // code matches their width.
  function renderGutters(display) {
    var gutters = display.gutters, specs = display.gutterSpecs;
    removeChildren(gutters);
    display.lineGutter = null;
    for (var i = 0; i < specs.length; ++i) {
      var ref = specs[i];
      var className = ref.className;
      var style = ref.style;
      var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + className));
      if (style) { gElt.style.cssText = style; }
      if (className == "CodeMirror-linenumbers") {
        display.lineGutter = gElt;
        gElt.style.width = (display.lineNumWidth || 1) + "px";
      }
    }
    gutters.style.display = specs.length ? "" : "none";
    updateGutterSpace(display);
  }

  function updateGutters(cm) {
    renderGutters(cm.display);
    regChange(cm);
    alignHorizontally(cm);
  }

  // The display handles the DOM integration, both for input reading
  // and content drawing. It holds references to DOM nodes and
  // display-related state.

  function Display(place, doc, input, options) {
    var d = this;
    this.input = input;

    // Covers bottom-right square when both scrollbars are present.
    d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
    d.scrollbarFiller.setAttribute("cm-not-content", "true");
    // Covers bottom of gutter when coverGutterNextToScrollbar is on
    // and h scrollbar is present.
    d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
    d.gutterFiller.setAttribute("cm-not-content", "true");
    // Will contain the actual code, positioned to cover the viewport.
    d.lineDiv = eltP("div", null, "CodeMirror-code");
    // Elements are added to these to represent selection and cursors.
    d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
    d.cursorDiv = elt("div", null, "CodeMirror-cursors");
    // A visibility: hidden element used to find the size of things.
    d.measure = elt("div", null, "CodeMirror-measure");
    // When lines outside of the viewport are measured, they are drawn in this.
    d.lineMeasure = elt("div", null, "CodeMirror-measure");
    // Wraps everything that needs to exist inside the vertically-padded coordinate system
    d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
                      null, "position: relative; outline: none");
    var lines = eltP("div", [d.lineSpace], "CodeMirror-lines");
    // Moved around its parent to cover visible view.
    d.mover = elt("div", [lines], null, "position: relative");
    // Set to the height of the document, allowing scrolling.
    d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
    d.sizerWidth = null;
    // Behavior of elts with overflow: auto and padding is
    // inconsistent across browsers. This is used to ensure the
    // scrollable area is big enough.
    d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
    // Will contain the gutters, if any.
    d.gutters = elt("div", null, "CodeMirror-gutters");
    d.lineGutter = null;
    // Actual scrollable element.
    d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
    d.scroller.setAttribute("tabIndex", "-1");
    // The element in which the editor lives.
    d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");

    // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
    if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
    if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; }

    if (place) {
      if (place.appendChild) { place.appendChild(d.wrapper); }
      else { place(d.wrapper); }
    }

    // Current rendered range (may be bigger than the view window).
    d.viewFrom = d.viewTo = doc.first;
    d.reportedViewFrom = d.reportedViewTo = doc.first;
    // Information about the rendered lines.
    d.view = [];
    d.renderedView = null;
    // Holds info about a single rendered line when it was rendered
    // for measurement, while not in view.
    d.externalMeasured = null;
    // Empty space (in pixels) above the view
    d.viewOffset = 0;
    d.lastWrapHeight = d.lastWrapWidth = 0;
    d.updateLineNumbers = null;

    d.nativeBarWidth = d.barHeight = d.barWidth = 0;
    d.scrollbarsClipped = false;

    // Used to only resize the line number gutter when necessary (when
    // the amount of lines crosses a boundary that makes its width change)
    d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
    // Set to true when a non-horizontal-scrolling line widget is
    // added. As an optimization, line widget aligning is skipped when
    // this is false.
    d.alignWidgets = false;

    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;

    // Tracks the maximum line length so that the horizontal scrollbar
    // can be kept static when scrolling.
    d.maxLine = null;
    d.maxLineLength = 0;
    d.maxLineChanged = false;

    // Used for measuring wheel scrolling granularity
    d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;

    // True when shift is held down.
    d.shift = false;

    // Used to track whether anything happened since the context menu
    // was opened.
    d.selForContextMenu = null;

    d.activeTouch = null;

    d.gutterSpecs = getGutters(options.gutters, options.lineNumbers);
    renderGutters(d);

    input.init(d);
  }

  // Since the delta values reported on mouse wheel events are
  // unstandardized between browsers and even browser versions, and
  // generally horribly unpredictable, this code starts by measuring
  // the scroll effect that the first few mouse wheel events have,
  // and, from that, detects the way it can convert deltas to pixel
  // offsets afterwards.
  //
  // The reason we want to know the amount a wheel event will scroll
  // is that it gives us a chance to update the display before the
  // actual scrolling happens, reducing flickering.

  var wheelSamples = 0, wheelPixelsPerUnit = null;
  // Fill in a browser-detected starting value on browsers where we
  // know one. These don't have to be accurate -- the result of them
  // being wrong would just be a slight flicker on the first wheel
  // scroll (if it is large enough).
  if (ie) { wheelPixelsPerUnit = -.53; }
  else if (gecko) { wheelPixelsPerUnit = 15; }
  else if (chrome) { wheelPixelsPerUnit = -.7; }
  else if (safari) { wheelPixelsPerUnit = -1/3; }

  function wheelEventDelta(e) {
    var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
    if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; }
    if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; }
    else if (dy == null) { dy = e.wheelDelta; }
    return {x: dx, y: dy}
  }
  function wheelEventPixels(e) {
    var delta = wheelEventDelta(e);
    delta.x *= wheelPixelsPerUnit;
    delta.y *= wheelPixelsPerUnit;
    return delta
  }

  function onScrollWheel(cm, e) {
    var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;

    var display = cm.display, scroll = display.scroller;
    // Quit if there's nothing to scroll here
    var canScrollX = scroll.scrollWidth > scroll.clientWidth;
    var canScrollY = scroll.scrollHeight > scroll.clientHeight;
    if (!(dx && canScrollX || dy && canScrollY)) { return }

    // Webkit browsers on OS X abort momentum scrolls when the target
    // of the scroll event is removed from the scrollable element.
    // This hack (see related code in patchDisplay) makes sure the
    // element is kept around.
    if (dy && mac && webkit) {
      outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
        for (var i = 0; i < view.length; i++) {
          if (view[i].node == cur) {
            cm.display.currentWheelTarget = cur;
            break outer
          }
        }
      }
    }

    // On some browsers, horizontal scrolling will cause redraws to
    // happen before the gutter has been realigned, causing it to
    // wriggle around in a most unseemly way. When we have an
    // estimated pixels/delta value, we just handle horizontal
    // scrolling entirely here. It'll be slightly off from native, but
    // better than glitching out.
    if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
      if (dy && canScrollY)
        { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)); }
      setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit));
      // Only prevent default scrolling if vertical scrolling is
      // actually possible. Otherwise, it causes vertical scroll
      // jitter on OSX trackpads when deltaX is small and deltaY
      // is large (issue #3579)
      if (!dy || (dy && canScrollY))
        { e_preventDefault(e); }
      display.wheelStartX = null; // Abort measurement, if in progress
      return
    }

    // 'Project' the visible viewport to cover the area that is being
    // scrolled into view (if we know enough to estimate it).
    if (dy && wheelPixelsPerUnit != null) {
      var pixels = dy * wheelPixelsPerUnit;
      var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
      if (pixels < 0) { top = Math.max(0, top + pixels - 50); }
      else { bot = Math.min(cm.doc.height, bot + pixels + 50); }
      updateDisplaySimple(cm, {top: top, bottom: bot});
    }

    if (wheelSamples < 20) {
      if (display.wheelStartX == null) {
        display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
        display.wheelDX = dx; display.wheelDY = dy;
        setTimeout(function () {
          if (display.wheelStartX == null) { return }
          var movedX = scroll.scrollLeft - display.wheelStartX;
          var movedY = scroll.scrollTop - display.wheelStartY;
          var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
            (movedX && display.wheelDX && movedX / display.wheelDX);
          display.wheelStartX = display.wheelStartY = null;
          if (!sample) { return }
          wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
          ++wheelSamples;
        }, 200);
      } else {
        display.wheelDX += dx; display.wheelDY += dy;
      }
    }
  }

  // Selection objects are immutable. A new one is created every time
  // the selection changes. A selection is one or more non-overlapping
  // (and non-touching) ranges, sorted, and an integer that indicates
  // which one is the primary selection (the one that's scrolled into
  // view, that getCursor returns, etc).
  var Selection = function(ranges, primIndex) {
    this.ranges = ranges;
    this.primIndex = primIndex;
  };

  Selection.prototype.primary = function () { return this.ranges[this.primIndex] };

  Selection.prototype.equals = function (other) {
    if (other == this) { return true }
    if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }
    for (var i = 0; i < this.ranges.length; i++) {
      var here = this.ranges[i], there = other.ranges[i];
      if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }
    }
    return true
  };

  Selection.prototype.deepCopy = function () {
    var out = [];
    for (var i = 0; i < this.ranges.length; i++)
      { out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); }
    return new Selection(out, this.primIndex)
  };

  Selection.prototype.somethingSelected = function () {
    for (var i = 0; i < this.ranges.length; i++)
      { if (!this.ranges[i].empty()) { return true } }
    return false
  };

  Selection.prototype.contains = function (pos, end) {
    if (!end) { end = pos; }
    for (var i = 0; i < this.ranges.length; i++) {
      var range = this.ranges[i];
      if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
        { return i }
    }
    return -1
  };

  var Range = function(anchor, head) {
    this.anchor = anchor; this.head = head;
  };

  Range.prototype.from = function () { return minPos(this.anchor, this.head) };
  Range.prototype.to = function () { return maxPos(this.anchor, this.head) };
  Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };

  // Take an unsorted, potentially overlapping set of ranges, and
  // build a selection out of it. 'Consumes' ranges array (modifying
  // it).
  function normalizeSelection(cm, ranges, primIndex) {
    var mayTouch = cm && cm.options.selectionsMayTouch;
    var prim = ranges[primIndex];
    ranges.sort(function (a, b) { return cmp(a.from(), b.from()); });
    primIndex = indexOf(ranges, prim);
    for (var i = 1; i < ranges.length; i++) {
      var cur = ranges[i], prev = ranges[i - 1];
      var diff = cmp(prev.to(), cur.from());
      if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) {
        var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
        var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
        if (i <= primIndex) { --primIndex; }
        ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
      }
    }
    return new Selection(ranges, primIndex)
  }

  function simpleSelection(anchor, head) {
    return new Selection([new Range(anchor, head || anchor)], 0)
  }

  // Compute the position of the end of a change (its 'to' property
  // refers to the pre-change end).
  function changeEnd(change) {
    if (!change.text) { return change.to }
    return Pos(change.from.line + change.text.length - 1,
               lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))
  }

  // Adjust a position to refer to the post-change position of the
  // same text, or the end of the change if the change covers it.
  function adjustForChange(pos, change) {
    if (cmp(pos, change.from) < 0) { return pos }
    if (cmp(pos, change.to) <= 0) { return changeEnd(change) }

    var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
    if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; }
    return Pos(line, ch)
  }

  function computeSelAfterChange(doc, change) {
    var out = [];
    for (var i = 0; i < doc.sel.ranges.length; i++) {
      var range = doc.sel.ranges[i];
      out.push(new Range(adjustForChange(range.anchor, change),
                         adjustForChange(range.head, change)));
    }
    return normalizeSelection(doc.cm, out, doc.sel.primIndex)
  }

  function offsetPos(pos, old, nw) {
    if (pos.line == old.line)
      { return Pos(nw.line, pos.ch - old.ch + nw.ch) }
    else
      { return Pos(nw.line + (pos.line - old.line), pos.ch) }
  }

  // Used by replaceSelections to allow moving the selection to the
  // start or around the replaced test. Hint may be "start" or "around".
  function computeReplacedSel(doc, changes, hint) {
    var out = [];
    var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
    for (var i = 0; i < changes.length; i++) {
      var change = changes[i];
      var from = offsetPos(change.from, oldPrev, newPrev);
      var to = offsetPos(changeEnd(change), oldPrev, newPrev);
      oldPrev = change.to;
      newPrev = to;
      if (hint == "around") {
        var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
        out[i] = new Range(inv ? to : from, inv ? from : to);
      } else {
        out[i] = new Range(from, from);
      }
    }
    return new Selection(out, doc.sel.primIndex)
  }

  // Used to get the editor into a consistent state again when options change.

  function loadMode(cm) {
    cm.doc.mode = getMode(cm.options, cm.doc.modeOption);
    resetModeState(cm);
  }

  function resetModeState(cm) {
    cm.doc.iter(function (line) {
      if (line.stateAfter) { line.stateAfter = null; }
      if (line.styles) { line.styles = null; }
    });
    cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first;
    startWorker(cm, 100);
    cm.state.modeGen++;
    if (cm.curOp) { regChange(cm); }
  }

  // DOCUMENT DATA STRUCTURE

  // By default, updates that start and end at the beginning of a line
  // are treated specially, in order to make the association of line
  // widgets and marker elements with the text behave more intuitive.
  function isWholeLineUpdate(doc, change) {
    return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
      (!doc.cm || doc.cm.options.wholeLineUpdateBefore)
  }

  // Perform a change on the document data structure.
  function updateDoc(doc, change, markedSpans, estimateHeight) {
    function spansFor(n) {return markedSpans ? markedSpans[n] : null}
    function update(line, text, spans) {
      updateLine(line, text, spans, estimateHeight);
      signalLater(line, "change", line, change);
    }
    function linesFor(start, end) {
      var result = [];
      for (var i = start; i < end; ++i)
        { result.push(new Line(text[i], spansFor(i), estimateHeight)); }
      return result
    }

    var from = change.from, to = change.to, text = change.text;
    var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
    var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;

    // Adjust the line structure
    if (change.full) {
      doc.insert(0, linesFor(0, text.length));
      doc.remove(text.length, doc.size - text.length);
    } else if (isWholeLineUpdate(doc, change)) {
      // This is a whole-line replace. Treated specially to make
      // sure line objects move the way they are supposed to.
      var added = linesFor(0, text.length - 1);
      update(lastLine, lastLine.text, lastSpans);
      if (nlines) { doc.remove(from.line, nlines); }
      if (added.length) { doc.insert(from.line, added); }
    } else if (firstLine == lastLine) {
      if (text.length == 1) {
        update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
      } else {
        var added$1 = linesFor(1, text.length - 1);
        added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
        update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
        doc.insert(from.line + 1, added$1);
      }
    } else if (text.length == 1) {
      update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
      doc.remove(from.line + 1, nlines);
    } else {
      update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
      update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
      var added$2 = linesFor(1, text.length - 1);
      if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); }
      doc.insert(from.line + 1, added$2);
    }

    signalLater(doc, "change", doc, change);
  }

  // Call f for all linked documents.
  function linkedDocs(doc, f, sharedHistOnly) {
    function propagate(doc, skip, sharedHist) {
      if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {
        var rel = doc.linked[i];
        if (rel.doc == skip) { continue }
        var shared = sharedHist && rel.sharedHist;
        if (sharedHistOnly && !shared) { continue }
        f(rel.doc, shared);
        propagate(rel.doc, doc, shared);
      } }
    }
    propagate(doc, null, true);
  }

  // Attach a document to an editor.
  function attachDoc(cm, doc) {
    if (doc.cm) { throw new Error("This document is already in use.") }
    cm.doc = doc;
    doc.cm = cm;
    estimateLineHeights(cm);
    loadMode(cm);
    setDirectionClass(cm);
    if (!cm.options.lineWrapping) { findMaxLine(cm); }
    cm.options.mode = doc.modeOption;
    regChange(cm);
  }

  function setDirectionClass(cm) {
  (cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl");
  }

  function directionChanged(cm) {
    runInOp(cm, function () {
      setDirectionClass(cm);
      regChange(cm);
    });
  }

  function History(startGen) {
    // Arrays of change events and selections. Doing something adds an
    // event to done and clears undo. Undoing moves events from done
    // to undone, redoing moves them in the other direction.
    this.done = []; this.undone = [];
    this.undoDepth = Infinity;
    // Used to track when changes can be merged into a single undo
    // event
    this.lastModTime = this.lastSelTime = 0;
    this.lastOp = this.lastSelOp = null;
    this.lastOrigin = this.lastSelOrigin = null;
    // Used by the isClean() method
    this.generation = this.maxGeneration = startGen || 1;
  }

  // Create a history change event from an updateDoc-style change
  // object.
  function historyChangeFromChange(doc, change) {
    var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
    attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
    linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true);
    return histChange
  }

  // Pop all selection events off the end of a history array. Stop at
  // a change event.
  function clearSelectionEvents(array) {
    while (array.length) {
      var last = lst(array);
      if (last.ranges) { array.pop(); }
      else { break }
    }
  }

  // Find the top change event in the history. Pop off selection
  // events that are in the way.
  function lastChangeEvent(hist, force) {
    if (force) {
      clearSelectionEvents(hist.done);
      return lst(hist.done)
    } else if (hist.done.length && !lst(hist.done).ranges) {
      return lst(hist.done)
    } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
      hist.done.pop();
      return lst(hist.done)
    }
  }

  // Register a change in the history. Merges changes that are within
  // a single operation, or are close together with an origin that
  // allows merging (starting with "+") into a single event.
  function addChangeToHistory(doc, change, selAfter, opId) {
    var hist = doc.history;
    hist.undone.length = 0;
    var time = +new Date, cur;
    var last;

    if ((hist.lastOp == opId ||
         hist.lastOrigin == change.origin && change.origin &&
         ((change.origin.charAt(0) == "+" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) ||
          change.origin.charAt(0) == "*")) &&
        (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
      // Merge this change into the last event
      last = lst(cur.changes);
      if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
        // Optimized case for simple insertion -- don't want to add
        // new changesets for every character typed
        last.to = changeEnd(change);
      } else {
        // Add new sub-event
        cur.changes.push(historyChangeFromChange(doc, change));
      }
    } else {
      // Can not be merged, start a new event.
      var before = lst(hist.done);
      if (!before || !before.ranges)
        { pushSelectionToHistory(doc.sel, hist.done); }
      cur = {changes: [historyChangeFromChange(doc, change)],
             generation: hist.generation};
      hist.done.push(cur);
      while (hist.done.length > hist.undoDepth) {
        hist.done.shift();
        if (!hist.done[0].ranges) { hist.done.shift(); }
      }
    }
    hist.done.push(selAfter);
    hist.generation = ++hist.maxGeneration;
    hist.lastModTime = hist.lastSelTime = time;
    hist.lastOp = hist.lastSelOp = opId;
    hist.lastOrigin = hist.lastSelOrigin = change.origin;

    if (!last) { signal(doc, "historyAdded"); }
  }

  function selectionEventCanBeMerged(doc, origin, prev, sel) {
    var ch = origin.charAt(0);
    return ch == "*" ||
      ch == "+" &&
      prev.ranges.length == sel.ranges.length &&
      prev.somethingSelected() == sel.somethingSelected() &&
      new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)
  }

  // Called whenever the selection changes, sets the new selection as
  // the pending selection in the history, and pushes the old pending
  // selection into the 'done' array when it was significantly
  // different (in number of selected ranges, emptiness, or time).
  function addSelectionToHistory(doc, sel, opId, options) {
    var hist = doc.history, origin = options && options.origin;

    // A new event is started when the previous origin does not match
    // the current, or the origins don't allow matching. Origins
    // starting with * are always merged, those starting with + are
    // merged when similar and close together in time.
    if (opId == hist.lastSelOp ||
        (origin && hist.lastSelOrigin == origin &&
         (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
          selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
      { hist.done[hist.done.length - 1] = sel; }
    else
      { pushSelectionToHistory(sel, hist.done); }

    hist.lastSelTime = +new Date;
    hist.lastSelOrigin = origin;
    hist.lastSelOp = opId;
    if (options && options.clearRedo !== false)
      { clearSelectionEvents(hist.undone); }
  }

  function pushSelectionToHistory(sel, dest) {
    var top = lst(dest);
    if (!(top && top.ranges && top.equals(sel)))
      { dest.push(sel); }
  }

  // Used to store marked span information in the history.
  function attachLocalSpans(doc, change, from, to) {
    var existing = change["spans_" + doc.id], n = 0;
    doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {
      if (line.markedSpans)
        { (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; }
      ++n;
    });
  }

  // When un/re-doing restores text containing marked spans, those
  // that have been explicitly cleared should not be restored.
  function removeClearedSpans(spans) {
    if (!spans) { return null }
    var out;
    for (var i = 0; i < spans.length; ++i) {
      if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } }
      else if (out) { out.push(spans[i]); }
    }
    return !out ? spans : out.length ? out : null
  }

  // Retrieve and filter the old marked spans stored in a change event.
  function getOldSpans(doc, change) {
    var found = change["spans_" + doc.id];
    if (!found) { return null }
    var nw = [];
    for (var i = 0; i < change.text.length; ++i)
      { nw.push(removeClearedSpans(found[i])); }
    return nw
  }

  // Used for un/re-doing changes from the history. Combines the
  // result of computing the existing spans with the set of spans that
  // existed in the history (so that deleting around a span and then
  // undoing brings back the span).
  function mergeOldSpans(doc, change) {
    var old = getOldSpans(doc, change);
    var stretched = stretchSpansOverChange(doc, change);
    if (!old) { return stretched }
    if (!stretched) { return old }

    for (var i = 0; i < old.length; ++i) {
      var oldCur = old[i], stretchCur = stretched[i];
      if (oldCur && stretchCur) {
        spans: for (var j = 0; j < stretchCur.length; ++j) {
          var span = stretchCur[j];
          for (var k = 0; k < oldCur.length; ++k)
            { if (oldCur[k].marker == span.marker) { continue spans } }
          oldCur.push(span);
        }
      } else if (stretchCur) {
        old[i] = stretchCur;
      }
    }
    return old
  }

  // Used both to provide a JSON-safe object in .getHistory, and, when
  // detaching a document, to split the history in two
  function copyHistoryArray(events, newGroup, instantiateSel) {
    var copy = [];
    for (var i = 0; i < events.length; ++i) {
      var event = events[i];
      if (event.ranges) {
        copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
        continue
      }
      var changes = event.changes, newChanges = [];
      copy.push({changes: newChanges});
      for (var j = 0; j < changes.length; ++j) {
        var change = changes[j], m = (void 0);
        newChanges.push({from: change.from, to: change.to, text: change.text});
        if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) {
          if (indexOf(newGroup, Number(m[1])) > -1) {
            lst(newChanges)[prop] = change[prop];
            delete change[prop];
          }
        } } }
      }
    }
    return copy
  }

  // The 'scroll' parameter given to many of these indicated whether
  // the new cursor position should be scrolled into view after
  // modifying the selection.

  // If shift is held or the extend flag is set, extends a range to
  // include a given position (and optionally a second position).
  // Otherwise, simply returns the range between the given positions.
  // Used for cursor motion and such.
  function extendRange(range, head, other, extend) {
    if (extend) {
      var anchor = range.anchor;
      if (other) {
        var posBefore = cmp(head, anchor) < 0;
        if (posBefore != (cmp(other, anchor) < 0)) {
          anchor = head;
          head = other;
        } else if (posBefore != (cmp(head, other) < 0)) {
          head = other;
        }
      }
      return new Range(anchor, head)
    } else {
      return new Range(other || head, head)
    }
  }

  // Extend the primary selection range, discard the rest.
  function extendSelection(doc, head, other, options, extend) {
    if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); }
    setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options);
  }

  // Extend all selections (pos is an array of selections with length
  // equal the number of selections)
  function extendSelections(doc, heads, options) {
    var out = [];
    var extend = doc.cm && (doc.cm.display.shift || doc.extend);
    for (var i = 0; i < doc.sel.ranges.length; i++)
      { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); }
    var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex);
    setSelection(doc, newSel, options);
  }

  // Updates a single range in the selection.
  function replaceOneSelection(doc, i, range, options) {
    var ranges = doc.sel.ranges.slice(0);
    ranges[i] = range;
    setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options);
  }

  // Reset the selection to a single range.
  function setSimpleSelection(doc, anchor, head, options) {
    setSelection(doc, simpleSelection(anchor, head), options);
  }

  // Give beforeSelectionChange handlers a change to influence a
  // selection update.
  function filterSelectionChange(doc, sel, options) {
    var obj = {
      ranges: sel.ranges,
      update: function(ranges) {
        this.ranges = [];
        for (var i = 0; i < ranges.length; i++)
          { this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
                                     clipPos(doc, ranges[i].head)); }
      },
      origin: options && options.origin
    };
    signal(doc, "beforeSelectionChange", doc, obj);
    if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj); }
    if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) }
    else { return sel }
  }

  function setSelectionReplaceHistory(doc, sel, options) {
    var done = doc.history.done, last = lst(done);
    if (last && last.ranges) {
      done[done.length - 1] = sel;
      setSelectionNoUndo(doc, sel, options);
    } else {
      setSelection(doc, sel, options);
    }
  }

  // Set a new selection.
  function setSelection(doc, sel, options) {
    setSelectionNoUndo(doc, sel, options);
    addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
  }

  function setSelectionNoUndo(doc, sel, options) {
    if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
      { sel = filterSelectionChange(doc, sel, options); }

    var bias = options && options.bias ||
      (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
    setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));

    if (!(options && options.scroll === false) && doc.cm)
      { ensureCursorVisible(doc.cm); }
  }

  function setSelectionInner(doc, sel) {
    if (sel.equals(doc.sel)) { return }

    doc.sel = sel;

    if (doc.cm) {
      doc.cm.curOp.updateInput = 1;
      doc.cm.curOp.selectionChanged = true;
      signalCursorActivity(doc.cm);
    }
    signalLater(doc, "cursorActivity", doc);
  }

  // Verify that the selection does not partially select any atomic
  // marked ranges.
  function reCheckSelection(doc) {
    setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false));
  }

  // Return a selection that does not partially select any atomic
  // ranges.
  function skipAtomicInSelection(doc, sel, bias, mayClear) {
    var out;
    for (var i = 0; i < sel.ranges.length; i++) {
      var range = sel.ranges[i];
      var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];
      var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);
      var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear);
      if (out || newAnchor != range.anchor || newHead != range.head) {
        if (!out) { out = sel.ranges.slice(0, i); }
        out[i] = new Range(newAnchor, newHead);
      }
    }
    return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel
  }

  function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
    var line = getLine(doc, pos.line);
    if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
      var sp = line.markedSpans[i], m = sp.marker;

      // Determine if we should prevent the cursor being placed to the left/right of an atomic marker
      // Historically this was determined using the inclusiveLeft/Right option, but the new way to control it
      // is with selectLeft/Right
      var preventCursorLeft = ("selectLeft" in m) ? !m.selectLeft : m.inclusiveLeft;
      var preventCursorRight = ("selectRight" in m) ? !m.selectRight : m.inclusiveRight;

      if ((sp.from == null || (preventCursorLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
          (sp.to == null || (preventCursorRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
        if (mayClear) {
          signal(m, "beforeCursorEnter");
          if (m.explicitlyCleared) {
            if (!line.markedSpans) { break }
            else {--i; continue}
          }
        }
        if (!m.atomic) { continue }

        if (oldPos) {
          var near = m.find(dir < 0 ? 1 : -1), diff = (void 0);
          if (dir < 0 ? preventCursorRight : preventCursorLeft)
            { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); }
          if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
            { return skipAtomicInner(doc, near, pos, dir, mayClear) }
        }

        var far = m.find(dir < 0 ? -1 : 1);
        if (dir < 0 ? preventCursorLeft : preventCursorRight)
          { far = movePos(doc, far, dir, far.line == pos.line ? line : null); }
        return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null
      }
    } }
    return pos
  }

  // Ensure a given position is not inside an atomic range.
  function skipAtomic(doc, pos, oldPos, bias, mayClear) {
    var dir = bias || 1;
    var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
        (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
        skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
        (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));
    if (!found) {
      doc.cantEdit = true;
      return Pos(doc.first, 0)
    }
    return found
  }

  function movePos(doc, pos, dir, line) {
    if (dir < 0 && pos.ch == 0) {
      if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }
      else { return null }
    } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
      if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }
      else { return null }
    } else {
      return new Pos(pos.line, pos.ch + dir)
    }
  }

  function selectAll(cm) {
    cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);
  }

  // UPDATING

  // Allow "beforeChange" event handlers to influence a change
  function filterChange(doc, change, update) {
    var obj = {
      canceled: false,
      from: change.from,
      to: change.to,
      text: change.text,
      origin: change.origin,
      cancel: function () { return obj.canceled = true; }
    };
    if (update) { obj.update = function (from, to, text, origin) {
      if (from) { obj.from = clipPos(doc, from); }
      if (to) { obj.to = clipPos(doc, to); }
      if (text) { obj.text = text; }
      if (origin !== undefined) { obj.origin = origin; }
    }; }
    signal(doc, "beforeChange", doc, obj);
    if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj); }

    if (obj.canceled) {
      if (doc.cm) { doc.cm.curOp.updateInput = 2; }
      return null
    }
    return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}
  }

  // Apply a change to a document, and add it to the document's
  // history, and propagating it to all linked documents.
  function makeChange(doc, change, ignoreReadOnly) {
    if (doc.cm) {
      if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }
      if (doc.cm.state.suppressEdits) { return }
    }

    if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
      change = filterChange(doc, change, true);
      if (!change) { return }
    }

    // Possibly split or suppress the update based on the presence
    // of read-only spans in its range.
    var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
    if (split) {
      for (var i = split.length - 1; i >= 0; --i)
        { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin}); }
    } else {
      makeChangeInner(doc, change);
    }
  }

  function makeChangeInner(doc, change) {
    if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return }
    var selAfter = computeSelAfterChange(doc, change);
    addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);

    makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
    var rebased = [];

    linkedDocs(doc, function (doc, sharedHist) {
      if (!sharedHist && indexOf(rebased, doc.history) == -1) {
        rebaseHist(doc.history, change);
        rebased.push(doc.history);
      }
      makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
    });
  }

  // Revert a change stored in a document's history.
  function makeChangeFromHistory(doc, type, allowSelectionOnly) {
    var suppress = doc.cm && doc.cm.state.suppressEdits;
    if (suppress && !allowSelectionOnly) { return }

    var hist = doc.history, event, selAfter = doc.sel;
    var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;

    // Verify that there is a useable event (so that ctrl-z won't
    // needlessly clear selection events)
    var i = 0;
    for (; i < source.length; i++) {
      event = source[i];
      if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
        { break }
    }
    if (i == source.length) { return }
    hist.lastOrigin = hist.lastSelOrigin = null;

    for (;;) {
      event = source.pop();
      if (event.ranges) {
        pushSelectionToHistory(event, dest);
        if (allowSelectionOnly && !event.equals(doc.sel)) {
          setSelection(doc, event, {clearRedo: false});
          return
        }
        selAfter = event;
      } else if (suppress) {
        source.push(event);
        return
      } else { break }
    }

    // Build up a reverse change object to add to the opposite history
    // stack (redo when undoing, and vice versa).
    var antiChanges = [];
    pushSelectionToHistory(selAfter, dest);
    dest.push({changes: antiChanges, generation: hist.generation});
    hist.generation = event.generation || ++hist.maxGeneration;

    var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");

    var loop = function ( i ) {
      var change = event.changes[i];
      change.origin = type;
      if (filter && !filterChange(doc, change, false)) {
        source.length = 0;
        return {}
      }

      antiChanges.push(historyChangeFromChange(doc, change));

      var after = i ? computeSelAfterChange(doc, change) : lst(source);
      makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
      if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); }
      var rebased = [];

      // Propagate to the linked documents
      linkedDocs(doc, function (doc, sharedHist) {
        if (!sharedHist && indexOf(rebased, doc.history) == -1) {
          rebaseHist(doc.history, change);
          rebased.push(doc.history);
        }
        makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
      });
    };

    for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {
      var returned = loop( i$1 );

      if ( returned ) return returned.v;
    }
  }

  // Sub-views need their line numbers shifted when text is added
  // above or below them in the parent document.
  function shiftDoc(doc, distance) {
    if (distance == 0) { return }
    doc.first += distance;
    doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(
      Pos(range.anchor.line + distance, range.anchor.ch),
      Pos(range.head.line + distance, range.head.ch)
    ); }), doc.sel.primIndex);
    if (doc.cm) {
      regChange(doc.cm, doc.first, doc.first - distance, distance);
      for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
        { regLineChange(doc.cm, l, "gutter"); }
    }
  }

  // More lower-level change function, handling only a single document
  // (not linked ones).
  function makeChangeSingleDoc(doc, change, selAfter, spans) {
    if (doc.cm && !doc.cm.curOp)
      { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }

    if (change.to.line < doc.first) {
      shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
      return
    }
    if (change.from.line > doc.lastLine()) { return }

    // Clip the change to the size of this doc
    if (change.from.line < doc.first) {
      var shift = change.text.length - 1 - (doc.first - change.from.line);
      shiftDoc(doc, shift);
      change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
                text: [lst(change.text)], origin: change.origin};
    }
    var last = doc.lastLine();
    if (change.to.line > last) {
      change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
                text: [change.text[0]], origin: change.origin};
    }

    change.removed = getBetween(doc, change.from, change.to);

    if (!selAfter) { selAfter = computeSelAfterChange(doc, change); }
    if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); }
    else { updateDoc(doc, change, spans); }
    setSelectionNoUndo(doc, selAfter, sel_dontScroll);

    if (doc.cantEdit && skipAtomic(doc, Pos(doc.firstLine(), 0)))
      { doc.cantEdit = false; }
  }

  // Handle the interaction of a change to a document with the editor
  // that this document is part of.
  function makeChangeSingleDocInEditor(cm, change, spans) {
    var doc = cm.doc, display = cm.display, from = change.from, to = change.to;

    var recomputeMaxLength = false, checkWidthStart = from.line;
    if (!cm.options.lineWrapping) {
      checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
      doc.iter(checkWidthStart, to.line + 1, function (line) {
        if (line == display.maxLine) {
          recomputeMaxLength = true;
          return true
        }
      });
    }

    if (doc.sel.contains(change.from, change.to) > -1)
      { signalCursorActivity(cm); }

    updateDoc(doc, change, spans, estimateHeight(cm));

    if (!cm.options.lineWrapping) {
      doc.iter(checkWidthStart, from.line + change.text.length, function (line) {
        var len = lineLength(line);
        if (len > display.maxLineLength) {
          display.maxLine = line;
          display.maxLineLength = len;
          display.maxLineChanged = true;
          recomputeMaxLength = false;
        }
      });
      if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; }
    }

    retreatFrontier(doc, from.line);
    startWorker(cm, 400);

    var lendiff = change.text.length - (to.line - from.line) - 1;
    // Remember that these lines changed, for updating the display
    if (change.full)
      { regChange(cm); }
    else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
      { regLineChange(cm, from.line, "text"); }
    else
      { regChange(cm, from.line, to.line + 1, lendiff); }

    var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
    if (changeHandler || changesHandler) {
      var obj = {
        from: from, to: to,
        text: change.text,
        removed: change.removed,
        origin: change.origin
      };
      if (changeHandler) { signalLater(cm, "change", cm, obj); }
      if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); }
    }
    cm.display.selForContextMenu = null;
  }

  function replaceRange(doc, code, from, to, origin) {
    var assign;

    if (!to) { to = from; }
    if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); }
    if (typeof code == "string") { code = doc.splitLines(code); }
    makeChange(doc, {from: from, to: to, text: code, origin: origin});
  }

  // Rebasing/resetting history to deal with externally-sourced changes

  function rebaseHistSelSingle(pos, from, to, diff) {
    if (to < pos.line) {
      pos.line += diff;
    } else if (from < pos.line) {
      pos.line = from;
      pos.ch = 0;
    }
  }

  // Tries to rebase an array of history events given a change in the
  // document. If the change touches the same lines as the event, the
  // event, and everything 'behind' it, is discarded. If the change is
  // before the event, the event's positions are updated. Uses a
  // copy-on-write scheme for the positions, to avoid having to
  // reallocate them all on every rebase, but also avoid problems with
  // shared position objects being unsafely updated.
  function rebaseHistArray(array, from, to, diff) {
    for (var i = 0; i < array.length; ++i) {
      var sub = array[i], ok = true;
      if (sub.ranges) {
        if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
        for (var j = 0; j < sub.ranges.length; j++) {
          rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
          rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
        }
        continue
      }
      for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {
        var cur = sub.changes[j$1];
        if (to < cur.from.line) {
          cur.from = Pos(cur.from.line + diff, cur.from.ch);
          cur.to = Pos(cur.to.line + diff, cur.to.ch);
        } else if (from <= cur.to.line) {
          ok = false;
          break
        }
      }
      if (!ok) {
        array.splice(0, i + 1);
        i = 0;
      }
    }
  }

  function rebaseHist(hist, change) {
    var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
    rebaseHistArray(hist.done, from, to, diff);
    rebaseHistArray(hist.undone, from, to, diff);
  }

  // Utility for applying a change to a line by handle or number,
  // returning the number and optionally registering the line as
  // changed.
  function changeLine(doc, handle, changeType, op) {
    var no = handle, line = handle;
    if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)); }
    else { no = lineNo(handle); }
    if (no == null) { return null }
    if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); }
    return line
  }

  // The document is represented as a BTree consisting of leaves, with
  // chunk of lines in them, and branches, with up to ten leaves or
  // other branch nodes below them. The top node is always a branch
  // node, and is the document object itself (meaning it has
  // additional methods and properties).
  //
  // All nodes have parent links. The tree is used both to go from
  // line numbers to line objects, and to go from objects to numbers.
  // It also indexes by height, and is used to convert between height
  // and line object, and to find the total height of the document.
  //
  // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html

  function LeafChunk(lines) {
    this.lines = lines;
    this.parent = null;
    var height = 0;
    for (var i = 0; i < lines.length; ++i) {
      lines[i].parent = this;
      height += lines[i].height;
    }
    this.height = height;
  }

  LeafChunk.prototype = {
    chunkSize: function() { return this.lines.length },

    // Remove the n lines at offset 'at'.
    removeInner: function(at, n) {
      for (var i = at, e = at + n; i < e; ++i) {
        var line = this.lines[i];
        this.height -= line.height;
        cleanUpLine(line);
        signalLater(line, "delete");
      }
      this.lines.splice(at, n);
    },

    // Helper used to collapse a small branch into a single leaf.
    collapse: function(lines) {
      lines.push.apply(lines, this.lines);
    },

    // Insert the given array of lines at offset 'at', count them as
    // having the given height.
    insertInner: function(at, lines, height) {
      this.height += height;
      this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
      for (var i = 0; i < lines.length; ++i) { lines[i].parent = this; }
    },

    // Used to iterate over a part of the tree.
    iterN: function(at, n, op) {
      for (var e = at + n; at < e; ++at)
        { if (op(this.lines[at])) { return true } }
    }
  };

  function BranchChunk(children) {
    this.children = children;
    var size = 0, height = 0;
    for (var i = 0; i < children.length; ++i) {
      var ch = children[i];
      size += ch.chunkSize(); height += ch.height;
      ch.parent = this;
    }
    this.size = size;
    this.height = height;
    this.parent = null;
  }

  BranchChunk.prototype = {
    chunkSize: function() { return this.size },

    removeInner: function(at, n) {
      this.size -= n;
      for (var i = 0; i < this.children.length; ++i) {
        var child = this.children[i], sz = child.chunkSize();
        if (at < sz) {
          var rm = Math.min(n, sz - at), oldHeight = child.height;
          child.removeInner(at, rm);
          this.height -= oldHeight - child.height;
          if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
          if ((n -= rm) == 0) { break }
          at = 0;
        } else { at -= sz; }
      }
      // If the result is smaller than 25 lines, ensure that it is a
      // single leaf node.
      if (this.size - n < 25 &&
          (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
        var lines = [];
        this.collapse(lines);
        this.children = [new LeafChunk(lines)];
        this.children[0].parent = this;
      }
    },

    collapse: function(lines) {
      for (var i = 0; i < this.children.length; ++i) { this.children[i].collapse(lines); }
    },

    insertInner: function(at, lines, height) {
      this.size += lines.length;
      this.height += height;
      for (var i = 0; i < this.children.length; ++i) {
        var child = this.children[i], sz = child.chunkSize();
        if (at <= sz) {
          child.insertInner(at, lines, height);
          if (child.lines && child.lines.length > 50) {
            // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
            // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
            var remaining = child.lines.length % 25 + 25;
            for (var pos = remaining; pos < child.lines.length;) {
              var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));
              child.height -= leaf.height;
              this.children.splice(++i, 0, leaf);
              leaf.parent = this;
            }
            child.lines = child.lines.slice(0, remaining);
            this.maybeSpill();
          }
          break
        }
        at -= sz;
      }
    },

    // When a node has grown, check whether it should be split.
    maybeSpill: function() {
      if (this.children.length <= 10) { return }
      var me = this;
      do {
        var spilled = me.children.splice(me.children.length - 5, 5);
        var sibling = new BranchChunk(spilled);
        if (!me.parent) { // Become the parent node
          var copy = new BranchChunk(me.children);
          copy.parent = me;
          me.children = [copy, sibling];
          me = copy;
       } else {
          me.size -= sibling.size;
          me.height -= sibling.height;
          var myIndex = indexOf(me.parent.children, me);
          me.parent.children.splice(myIndex + 1, 0, sibling);
        }
        sibling.parent = me.parent;
      } while (me.children.length > 10)
      me.parent.maybeSpill();
    },

    iterN: function(at, n, op) {
      for (var i = 0; i < this.children.length; ++i) {
        var child = this.children[i], sz = child.chunkSize();
        if (at < sz) {
          var used = Math.min(n, sz - at);
          if (child.iterN(at, used, op)) { return true }
          if ((n -= used) == 0) { break }
          at = 0;
        } else { at -= sz; }
      }
    }
  };

  // Line widgets are block elements displayed above or below a line.

  var LineWidget = function(doc, node, options) {
    if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))
      { this[opt] = options[opt]; } } }
    this.doc = doc;
    this.node = node;
  };

  LineWidget.prototype.clear = function () {
    var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
    if (no == null || !ws) { return }
    for (var i = 0; i < ws.length; ++i) { if (ws[i] == this) { ws.splice(i--, 1); } }
    if (!ws.length) { line.widgets = null; }
    var height = widgetHeight(this);
    updateLineHeight(line, Math.max(0, line.height - height));
    if (cm) {
      runInOp(cm, function () {
        adjustScrollWhenAboveVisible(cm, line, -height);
        regLineChange(cm, no, "widget");
      });
      signalLater(cm, "lineWidgetCleared", cm, this, no);
    }
  };

  LineWidget.prototype.changed = function () {
      var this$1 = this;

    var oldH = this.height, cm = this.doc.cm, line = this.line;
    this.height = null;
    var diff = widgetHeight(this) - oldH;
    if (!diff) { return }
    if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); }
    if (cm) {
      runInOp(cm, function () {
        cm.curOp.forceUpdate = true;
        adjustScrollWhenAboveVisible(cm, line, diff);
        signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line));
      });
    }
  };
  eventMixin(LineWidget);

  function adjustScrollWhenAboveVisible(cm, line, diff) {
    if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
      { addToScrollTop(cm, diff); }
  }

  function addLineWidget(doc, handle, node, options) {
    var widget = new LineWidget(doc, node, options);
    var cm = doc.cm;
    if (cm && widget.noHScroll) { cm.display.alignWidgets = true; }
    changeLine(doc, handle, "widget", function (line) {
      var widgets = line.widgets || (line.widgets = []);
      if (widget.insertAt == null) { widgets.push(widget); }
      else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); }
      widget.line = line;
      if (cm && !lineIsHidden(doc, line)) {
        var aboveVisible = heightAtLine(line) < doc.scrollTop;
        updateLineHeight(line, line.height + widgetHeight(widget));
        if (aboveVisible) { addToScrollTop(cm, widget.height); }
        cm.curOp.forceUpdate = true;
      }
      return true
    });
    if (cm) { signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle)); }
    return widget
  }

  // TEXTMARKERS

  // Created with markText and setBookmark methods. A TextMarker is a
  // handle that can be used to clear or find a marked position in the
  // document. Line objects hold arrays (markedSpans) containing
  // {from, to, marker} object pointing to such marker objects, and
  // indicating that such a marker is present on that line. Multiple
  // lines may point to the same marker when it spans across lines.
  // The spans will have null for their from/to properties when the
  // marker continues beyond the start/end of the line. Markers have
  // links back to the lines they currently touch.

  // Collapsed markers have unique ids, in order to be able to order
  // them, which is needed for uniquely determining an outer marker
  // when they overlap (they may nest, but not partially overlap).
  var nextMarkerId = 0;

  var TextMarker = function(doc, type) {
    this.lines = [];
    this.type = type;
    this.doc = doc;
    this.id = ++nextMarkerId;
  };

  // Clear the marker.
  TextMarker.prototype.clear = function () {
    if (this.explicitlyCleared) { return }
    var cm = this.doc.cm, withOp = cm && !cm.curOp;
    if (withOp) { startOperation(cm); }
    if (hasHandler(this, "clear")) {
      var found = this.find();
      if (found) { signalLater(this, "clear", found.from, found.to); }
    }
    var min = null, max = null;
    for (var i = 0; i < this.lines.length; ++i) {
      var line = this.lines[i];
      var span = getMarkedSpanFor(line.markedSpans, this);
      if (cm && !this.collapsed) { regLineChange(cm, lineNo(line), "text"); }
      else if (cm) {
        if (span.to != null) { max = lineNo(line); }
        if (span.from != null) { min = lineNo(line); }
      }
      line.markedSpans = removeMarkedSpan(line.markedSpans, span);
      if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
        { updateLineHeight(line, textHeight(cm.display)); }
    }
    if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {
      var visual = visualLine(this.lines[i$1]), len = lineLength(visual);
      if (len > cm.display.maxLineLength) {
        cm.display.maxLine = visual;
        cm.display.maxLineLength = len;
        cm.display.maxLineChanged = true;
      }
    } }

    if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); }
    this.lines.length = 0;
    this.explicitlyCleared = true;
    if (this.atomic && this.doc.cantEdit) {
      this.doc.cantEdit = false;
      if (cm) { reCheckSelection(cm.doc); }
    }
    if (cm) { signalLater(cm, "markerCleared", cm, this, min, max); }
    if (withOp) { endOperation(cm); }
    if (this.parent) { this.parent.clear(); }
  };

  // Find the position of the marker in the document. Returns a {from,
  // to} object by default. Side can be passed to get a specific side
  // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
  // Pos objects returned contain a line object, rather than a line
  // number (used to prevent looking up the same line twice).
  TextMarker.prototype.find = function (side, lineObj) {
    if (side == null && this.type == "bookmark") { side = 1; }
    var from, to;
    for (var i = 0; i < this.lines.length; ++i) {
      var line = this.lines[i];
      var span = getMarkedSpanFor(line.markedSpans, this);
      if (span.from != null) {
        from = Pos(lineObj ? line : lineNo(line), span.from);
        if (side == -1) { return from }
      }
      if (span.to != null) {
        to = Pos(lineObj ? line : lineNo(line), span.to);
        if (side == 1) { return to }
      }
    }
    return from && {from: from, to: to}
  };

  // Signals that the marker's widget changed, and surrounding layout
  // should be recomputed.
  TextMarker.prototype.changed = function () {
      var this$1 = this;

    var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
    if (!pos || !cm) { return }
    runInOp(cm, function () {
      var line = pos.line, lineN = lineNo(pos.line);
      var view = findViewForLine(cm, lineN);
      if (view) {
        clearLineMeasurementCacheFor(view);
        cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
      }
      cm.curOp.updateMaxLine = true;
      if (!lineIsHidden(widget.doc, line) && widget.height != null) {
        var oldHeight = widget.height;
        widget.height = null;
        var dHeight = widgetHeight(widget) - oldHeight;
        if (dHeight)
          { updateLineHeight(line, line.height + dHeight); }
      }
      signalLater(cm, "markerChanged", cm, this$1);
    });
  };

  TextMarker.prototype.attachLine = function (line) {
    if (!this.lines.length && this.doc.cm) {
      var op = this.doc.cm.curOp;
      if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
        { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); }
    }
    this.lines.push(line);
  };

  TextMarker.prototype.detachLine = function (line) {
    this.lines.splice(indexOf(this.lines, line), 1);
    if (!this.lines.length && this.doc.cm) {
      var op = this.doc.cm.curOp
      ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
    }
  };
  eventMixin(TextMarker);

  // Create a marker, wire it up to the right lines, and
  function markText(doc, from, to, options, type) {
    // Shared markers (across linked documents) are handled separately
    // (markTextShared will call out to this again, once per
    // document).
    if (options && options.shared) { return markTextShared(doc, from, to, options, type) }
    // Ensure we are in an operation.
    if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }

    var marker = new TextMarker(doc, type), diff = cmp(from, to);
    if (options) { copyObj(options, marker, false); }
    // Don't connect empty markers unless clearWhenEmpty is false
    if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
      { return marker }
    if (marker.replacedWith) {
      // Showing up as a widget implies collapsed (widget replaces text)
      marker.collapsed = true;
      marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget");
      if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true"); }
      if (options.insertLeft) { marker.widgetNode.insertLeft = true; }
    }
    if (marker.collapsed) {
      if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
          from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
        { throw new Error("Inserting collapsed marker partially overlapping an existing one") }
      seeCollapsedSpans();
    }

    if (marker.addToHistory)
      { addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); }

    var curLine = from.line, cm = doc.cm, updateMaxLine;
    doc.iter(curLine, to.line + 1, function (line) {
      if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
        { updateMaxLine = true; }
      if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); }
      addMarkedSpan(line, new MarkedSpan(marker,
                                         curLine == from.line ? from.ch : null,
                                         curLine == to.line ? to.ch : null));
      ++curLine;
    });
    // lineIsHidden depends on the presence of the spans, so needs a second pass
    if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {
      if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); }
    }); }

    if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }); }

    if (marker.readOnly) {
      seeReadOnlySpans();
      if (doc.history.done.length || doc.history.undone.length)
        { doc.clearHistory(); }
    }
    if (marker.collapsed) {
      marker.id = ++nextMarkerId;
      marker.atomic = true;
    }
    if (cm) {
      // Sync editor state
      if (updateMaxLine) { cm.curOp.updateMaxLine = true; }
      if (marker.collapsed)
        { regChange(cm, from.line, to.line + 1); }
      else if (marker.className || marker.startStyle || marker.endStyle || marker.css ||
               marker.attributes || marker.title)
        { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text"); } }
      if (marker.atomic) { reCheckSelection(cm.doc); }
      signalLater(cm, "markerAdded", cm, marker);
    }
    return marker
  }

  // SHARED TEXTMARKERS

  // A shared marker spans multiple linked documents. It is
  // implemented as a meta-marker-object controlling multiple normal
  // markers.
  var SharedTextMarker = function(markers, primary) {
    this.markers = markers;
    this.primary = primary;
    for (var i = 0; i < markers.length; ++i)
      { markers[i].parent = this; }
  };

  SharedTextMarker.prototype.clear = function () {
    if (this.explicitlyCleared) { return }
    this.explicitlyCleared = true;
    for (var i = 0; i < this.markers.length; ++i)
      { this.markers[i].clear(); }
    signalLater(this, "clear");
  };

  SharedTextMarker.prototype.find = function (side, lineObj) {
    return this.primary.find(side, lineObj)
  };
  eventMixin(SharedTextMarker);

  function markTextShared(doc, from, to, options, type) {
    options = copyObj(options);
    options.shared = false;
    var markers = [markText(doc, from, to, options, type)], primary = markers[0];
    var widget = options.widgetNode;
    linkedDocs(doc, function (doc) {
      if (widget) { options.widgetNode = widget.cloneNode(true); }
      markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
      for (var i = 0; i < doc.linked.length; ++i)
        { if (doc.linked[i].isParent) { return } }
      primary = lst(markers);
    });
    return new SharedTextMarker(markers, primary)
  }

  function findSharedMarkers(doc) {
    return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })
  }

  function copySharedMarkers(doc, markers) {
    for (var i = 0; i < markers.length; i++) {
      var marker = markers[i], pos = marker.find();
      var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
      if (cmp(mFrom, mTo)) {
        var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
        marker.markers.push(subMark);
        subMark.parent = marker;
      }
    }
  }

  function detachSharedMarkers(markers) {
    var loop = function ( i ) {
      var marker = markers[i], linked = [marker.primary.doc];
      linkedDocs(marker.primary.doc, function (d) { return linked.push(d); });
      for (var j = 0; j < marker.markers.length; j++) {
        var subMarker = marker.markers[j];
        if (indexOf(linked, subMarker.doc) == -1) {
          subMarker.parent = null;
          marker.markers.splice(j--, 1);
        }
      }
    };

    for (var i = 0; i < markers.length; i++) loop( i );
  }

  var nextDocId = 0;
  var Doc = function(text, mode, firstLine, lineSep, direction) {
    if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }
    if (firstLine == null) { firstLine = 0; }

    BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
    this.first = firstLine;
    this.scrollTop = this.scrollLeft = 0;
    this.cantEdit = false;
    this.cleanGeneration = 1;
    this.modeFrontier = this.highlightFrontier = firstLine;
    var start = Pos(firstLine, 0);
    this.sel = simpleSelection(start);
    this.history = new History(null);
    this.id = ++nextDocId;
    this.modeOption = mode;
    this.lineSep = lineSep;
    this.direction = (direction == "rtl") ? "rtl" : "ltr";
    this.extend = false;

    if (typeof text == "string") { text = this.splitLines(text); }
    updateDoc(this, {from: start, to: start, text: text});
    setSelection(this, simpleSelection(start), sel_dontScroll);
  };

  Doc.prototype = createObj(BranchChunk.prototype, {
    constructor: Doc,
    // Iterate over the document. Supports two forms -- with only one
    // argument, it calls that for each line in the document. With
    // three, it iterates over the range given by the first two (with
    // the second being non-inclusive).
    iter: function(from, to, op) {
      if (op) { this.iterN(from - this.first, to - from, op); }
      else { this.iterN(this.first, this.first + this.size, from); }
    },

    // Non-public interface for adding and removing lines.
    insert: function(at, lines) {
      var height = 0;
      for (var i = 0; i < lines.length; ++i) { height += lines[i].height; }
      this.insertInner(at - this.first, lines, height);
    },
    remove: function(at, n) { this.removeInner(at - this.first, n); },

    // From here, the methods are part of the public interface. Most
    // are also available from CodeMirror (editor) instances.

    getValue: function(lineSep) {
      var lines = getLines(this, this.first, this.first + this.size);
      if (lineSep === false) { return lines }
      return lines.join(lineSep || this.lineSeparator())
    },
    setValue: docMethodOp(function(code) {
      var top = Pos(this.first, 0), last = this.first + this.size - 1;
      makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
                        text: this.splitLines(code), origin: "setValue", full: true}, true);
      if (this.cm) { scrollToCoords(this.cm, 0, 0); }
      setSelection(this, simpleSelection(top), sel_dontScroll);
    }),
    replaceRange: function(code, from, to, origin) {
      from = clipPos(this, from);
      to = to ? clipPos(this, to) : from;
      replaceRange(this, code, from, to, origin);
    },
    getRange: function(from, to, lineSep) {
      var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
      if (lineSep === false) { return lines }
      return lines.join(lineSep || this.lineSeparator())
    },

    getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},

    getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},
    getLineNumber: function(line) {return lineNo(line)},

    getLineHandleVisualStart: function(line) {
      if (typeof line == "number") { line = getLine(this, line); }
      return visualLine(line)
    },

    lineCount: function() {return this.size},
    firstLine: function() {return this.first},
    lastLine: function() {return this.first + this.size - 1},

    clipPos: function(pos) {return clipPos(this, pos)},

    getCursor: function(start) {
      var range = this.sel.primary(), pos;
      if (start == null || start == "head") { pos = range.head; }
      else if (start == "anchor") { pos = range.anchor; }
      else if (start == "end" || start == "to" || start === false) { pos = range.to(); }
      else { pos = range.from(); }
      return pos
    },
    listSelections: function() { return this.sel.ranges },
    somethingSelected: function() {return this.sel.somethingSelected()},

    setCursor: docMethodOp(function(line, ch, options) {
      setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
    }),
    setSelection: docMethodOp(function(anchor, head, options) {
      setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
    }),
    extendSelection: docMethodOp(function(head, other, options) {
      extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
    }),
    extendSelections: docMethodOp(function(heads, options) {
      extendSelections(this, clipPosArray(this, heads), options);
    }),
    extendSelectionsBy: docMethodOp(function(f, options) {
      var heads = map(this.sel.ranges, f);
      extendSelections(this, clipPosArray(this, heads), options);
    }),
    setSelections: docMethodOp(function(ranges, primary, options) {
      if (!ranges.length) { return }
      var out = [];
      for (var i = 0; i < ranges.length; i++)
        { out[i] = new Range(clipPos(this, ranges[i].anchor),
                           clipPos(this, ranges[i].head)); }
      if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); }
      setSelection(this, normalizeSelection(this.cm, out, primary), options);
    }),
    addSelection: docMethodOp(function(anchor, head, options) {
      var ranges = this.sel.ranges.slice(0);
      ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
      setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options);
    }),

    getSelection: function(lineSep) {
      var ranges = this.sel.ranges, lines;
      for (var i = 0; i < ranges.length; i++) {
        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
        lines = lines ? lines.concat(sel) : sel;
      }
      if (lineSep === false) { return lines }
      else { return lines.join(lineSep || this.lineSeparator()) }
    },
    getSelections: function(lineSep) {
      var parts = [], ranges = this.sel.ranges;
      for (var i = 0; i < ranges.length; i++) {
        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
        if (lineSep !== false) { sel = sel.join(lineSep || this.lineSeparator()); }
        parts[i] = sel;
      }
      return parts
    },
    replaceSelection: function(code, collapse, origin) {
      var dup = [];
      for (var i = 0; i < this.sel.ranges.length; i++)
        { dup[i] = code; }
      this.replaceSelections(dup, collapse, origin || "+input");
    },
    replaceSelections: docMethodOp(function(code, collapse, origin) {
      var changes = [], sel = this.sel;
      for (var i = 0; i < sel.ranges.length; i++) {
        var range = sel.ranges[i];
        changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin};
      }
      var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
      for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)
        { makeChange(this, changes[i$1]); }
      if (newSel) { setSelectionReplaceHistory(this, newSel); }
      else if (this.cm) { ensureCursorVisible(this.cm); }
    }),
    undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
    redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
    undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
    redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),

    setExtending: function(val) {this.extend = val;},
    getExtending: function() {return this.extend},

    historySize: function() {
      var hist = this.history, done = 0, undone = 0;
      for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } }
      for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } }
      return {undo: done, redo: undone}
    },
    clearHistory: function() {
      var this$1 = this;

      this.history = new History(this.history.maxGeneration);
      linkedDocs(this, function (doc) { return doc.history = this$1.history; }, true);
    },

    markClean: function() {
      this.cleanGeneration = this.changeGeneration(true);
    },
    changeGeneration: function(forceSplit) {
      if (forceSplit)
        { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; }
      return this.history.generation
    },
    isClean: function (gen) {
      return this.history.generation == (gen || this.cleanGeneration)
    },

    getHistory: function() {
      return {done: copyHistoryArray(this.history.done),
              undone: copyHistoryArray(this.history.undone)}
    },
    setHistory: function(histData) {
      var hist = this.history = new History(this.history.maxGeneration);
      hist.done = copyHistoryArray(histData.done.slice(0), null, true);
      hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
    },

    setGutterMarker: docMethodOp(function(line, gutterID, value) {
      return changeLine(this, line, "gutter", function (line) {
        var markers = line.gutterMarkers || (line.gutterMarkers = {});
        markers[gutterID] = value;
        if (!value && isEmpty(markers)) { line.gutterMarkers = null; }
        return true
      })
    }),

    clearGutter: docMethodOp(function(gutterID) {
      var this$1 = this;

      this.iter(function (line) {
        if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
          changeLine(this$1, line, "gutter", function () {
            line.gutterMarkers[gutterID] = null;
            if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; }
            return true
          });
        }
      });
    }),

    lineInfo: function(line) {
      var n;
      if (typeof line == "number") {
        if (!isLine(this, line)) { return null }
        n = line;
        line = getLine(this, line);
        if (!line) { return null }
      } else {
        n = lineNo(line);
        if (n == null) { return null }
      }
      return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
              textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
              widgets: line.widgets}
    },

    addLineClass: docMethodOp(function(handle, where, cls) {
      return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
        var prop = where == "text" ? "textClass"
                 : where == "background" ? "bgClass"
                 : where == "gutter" ? "gutterClass" : "wrapClass";
        if (!line[prop]) { line[prop] = cls; }
        else if (classTest(cls).test(line[prop])) { return false }
        else { line[prop] += " " + cls; }
        return true
      })
    }),
    removeLineClass: docMethodOp(function(handle, where, cls) {
      return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
        var prop = where == "text" ? "textClass"
                 : where == "background" ? "bgClass"
                 : where == "gutter" ? "gutterClass" : "wrapClass";
        var cur = line[prop];
        if (!cur) { return false }
        else if (cls == null) { line[prop] = null; }
        else {
          var found = cur.match(classTest(cls));
          if (!found) { return false }
          var end = found.index + found[0].length;
          line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
        }
        return true
      })
    }),

    addLineWidget: docMethodOp(function(handle, node, options) {
      return addLineWidget(this, handle, node, options)
    }),
    removeLineWidget: function(widget) { widget.clear(); },

    markText: function(from, to, options) {
      return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range")
    },
    setBookmark: function(pos, options) {
      var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
                      insertLeft: options && options.insertLeft,
                      clearWhenEmpty: false, shared: options && options.shared,
                      handleMouseEvents: options && options.handleMouseEvents};
      pos = clipPos(this, pos);
      return markText(this, pos, pos, realOpts, "bookmark")
    },
    findMarksAt: function(pos) {
      pos = clipPos(this, pos);
      var markers = [], spans = getLine(this, pos.line).markedSpans;
      if (spans) { for (var i = 0; i < spans.length; ++i) {
        var span = spans[i];
        if ((span.from == null || span.from <= pos.ch) &&
            (span.to == null || span.to >= pos.ch))
          { markers.push(span.marker.parent || span.marker); }
      } }
      return markers
    },
    findMarks: function(from, to, filter) {
      from = clipPos(this, from); to = clipPos(this, to);
      var found = [], lineNo = from.line;
      this.iter(from.line, to.line + 1, function (line) {
        var spans = line.markedSpans;
        if (spans) { for (var i = 0; i < spans.length; i++) {
          var span = spans[i];
          if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
                span.from == null && lineNo != from.line ||
                span.from != null && lineNo == to.line && span.from >= to.ch) &&
              (!filter || filter(span.marker)))
            { found.push(span.marker.parent || span.marker); }
        } }
        ++lineNo;
      });
      return found
    },
    getAllMarks: function() {
      var markers = [];
      this.iter(function (line) {
        var sps = line.markedSpans;
        if (sps) { for (var i = 0; i < sps.length; ++i)
          { if (sps[i].from != null) { markers.push(sps[i].marker); } } }
      });
      return markers
    },

    posFromIndex: function(off) {
      var ch, lineNo = this.first, sepSize = this.lineSeparator().length;
      this.iter(function (line) {
        var sz = line.text.length + sepSize;
        if (sz > off) { ch = off; return true }
        off -= sz;
        ++lineNo;
      });
      return clipPos(this, Pos(lineNo, ch))
    },
    indexFromPos: function (coords) {
      coords = clipPos(this, coords);
      var index = coords.ch;
      if (coords.line < this.first || coords.ch < 0) { return 0 }
      var sepSize = this.lineSeparator().length;
      this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value
        index += line.text.length + sepSize;
      });
      return index
    },

    copy: function(copyHistory) {
      var doc = new Doc(getLines(this, this.first, this.first + this.size),
                        this.modeOption, this.first, this.lineSep, this.direction);
      doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
      doc.sel = this.sel;
      doc.extend = false;
      if (copyHistory) {
        doc.history.undoDepth = this.history.undoDepth;
        doc.setHistory(this.getHistory());
      }
      return doc
    },

    linkedDoc: function(options) {
      if (!options) { options = {}; }
      var from = this.first, to = this.first + this.size;
      if (options.from != null && options.from > from) { from = options.from; }
      if (options.to != null && options.to < to) { to = options.to; }
      var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction);
      if (options.sharedHist) { copy.history = this.history
      ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
      copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
      copySharedMarkers(copy, findSharedMarkers(this));
      return copy
    },
    unlinkDoc: function(other) {
      if (other instanceof CodeMirror) { other = other.doc; }
      if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {
        var link = this.linked[i];
        if (link.doc != other) { continue }
        this.linked.splice(i, 1);
        other.unlinkDoc(this);
        detachSharedMarkers(findSharedMarkers(this));
        break
      } }
      // If the histories were shared, split them again
      if (other.history == this.history) {
        var splitIds = [other.id];
        linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true);
        other.history = new History(null);
        other.history.done = copyHistoryArray(this.history.done, splitIds);
        other.history.undone = copyHistoryArray(this.history.undone, splitIds);
      }
    },
    iterLinkedDocs: function(f) {linkedDocs(this, f);},

    getMode: function() {return this.mode},
    getEditor: function() {return this.cm},

    splitLines: function(str) {
      if (this.lineSep) { return str.split(this.lineSep) }
      return splitLinesAuto(str)
    },
    lineSeparator: function() { return this.lineSep || "\n" },

    setDirection: docMethodOp(function (dir) {
      if (dir != "rtl") { dir = "ltr"; }
      if (dir == this.direction) { return }
      this.direction = dir;
      this.iter(function (line) { return line.order = null; });
      if (this.cm) { directionChanged(this.cm); }
    })
  });

  // Public alias.
  Doc.prototype.eachLine = Doc.prototype.iter;

  // Kludge to work around strange IE behavior where it'll sometimes
  // re-fire a series of drag-related events right after the drop (#1551)
  var lastDrop = 0;

  function onDrop(e) {
    var cm = this;
    clearDragCursor(cm);
    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
      { return }
    e_preventDefault(e);
    if (ie) { lastDrop = +new Date; }
    var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
    if (!pos || cm.isReadOnly()) { return }
    // Might be a file drop, in which case we simply extract the text
    // and insert it.
    if (files && files.length && window.FileReader && window.File) {
      var n = files.length, text = Array(n), read = 0;
      var markAsReadAndPasteIfAllFilesAreRead = function () {
        if (++read == n) {
          operation(cm, function () {
            pos = clipPos(cm.doc, pos);
            var change = {from: pos, to: pos,
                          text: cm.doc.splitLines(
                              text.filter(function (t) { return t != null; }).join(cm.doc.lineSeparator())),
                          origin: "paste"};
            makeChange(cm.doc, change);
            setSelectionReplaceHistory(cm.doc, simpleSelection(clipPos(cm.doc, pos), clipPos(cm.doc, changeEnd(change))));
          })();
        }
      };
      var readTextFromFile = function (file, i) {
        if (cm.options.allowDropFileTypes &&
            indexOf(cm.options.allowDropFileTypes, file.type) == -1) {
          markAsReadAndPasteIfAllFilesAreRead();
          return
        }
        var reader = new FileReader;
        reader.onerror = function () { return markAsReadAndPasteIfAllFilesAreRead(); };
        reader.onload = function () {
          var content = reader.result;
          if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) {
            markAsReadAndPasteIfAllFilesAreRead();
            return
          }
          text[i] = content;
          markAsReadAndPasteIfAllFilesAreRead();
        };
        reader.readAsText(file);
      };
      for (var i = 0; i < files.length; i++) { readTextFromFile(files[i], i); }
    } else { // Normal drop
      // Don't do a replace if the drop happened inside of the selected text.
      if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
        cm.state.draggingText(e);
        // Ensure the editor is re-focused
        setTimeout(function () { return cm.display.input.focus(); }, 20);
        return
      }
      try {
        var text$1 = e.dataTransfer.getData("Text");
        if (text$1) {
          var selected;
          if (cm.state.draggingText && !cm.state.draggingText.copy)
            { selected = cm.listSelections(); }
          setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
          if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)
            { replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag"); } }
          cm.replaceSelection(text$1, "around", "paste");
          cm.display.input.focus();
        }
      }
      catch(e$1){}
    }
  }

  function onDragStart(cm, e) {
    if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }
    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }

    e.dataTransfer.setData("Text", cm.getSelection());
    e.dataTransfer.effectAllowed = "copyMove";

    // Use dummy image instead of default browsers image.
    // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
    if (e.dataTransfer.setDragImage && !safari) {
      var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
      img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
      if (presto) {
        img.width = img.height = 1;
        cm.display.wrapper.appendChild(img);
        // Force a relayout, or Opera won't use our image for some obscure reason
        img._top = img.offsetTop;
      }
      e.dataTransfer.setDragImage(img, 0, 0);
      if (presto) { img.parentNode.removeChild(img); }
    }
  }

  function onDragOver(cm, e) {
    var pos = posFromMouse(cm, e);
    if (!pos) { return }
    var frag = document.createDocumentFragment();
    drawSelectionCursor(cm, pos, frag);
    if (!cm.display.dragCursor) {
      cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors");
      cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);
    }
    removeChildrenAndAdd(cm.display.dragCursor, frag);
  }

  function clearDragCursor(cm) {
    if (cm.display.dragCursor) {
      cm.display.lineSpace.removeChild(cm.display.dragCursor);
      cm.display.dragCursor = null;
    }
  }

  // These must be handled carefully, because naively registering a
  // handler for each editor will cause the editors to never be
  // garbage collected.

  function forEachCodeMirror(f) {
    if (!document.getElementsByClassName) { return }
    var byClass = document.getElementsByClassName("CodeMirror"), editors = [];
    for (var i = 0; i < byClass.length; i++) {
      var cm = byClass[i].CodeMirror;
      if (cm) { editors.push(cm); }
    }
    if (editors.length) { editors[0].operation(function () {
      for (var i = 0; i < editors.length; i++) { f(editors[i]); }
    }); }
  }

  var globalsRegistered = false;
  function ensureGlobalHandlers() {
    if (globalsRegistered) { return }
    registerGlobalHandlers();
    globalsRegistered = true;
  }
  function registerGlobalHandlers() {
    // When the window resizes, we need to refresh active editors.
    var resizeTimer;
    on(window, "resize", function () {
      if (resizeTimer == null) { resizeTimer = setTimeout(function () {
        resizeTimer = null;
        forEachCodeMirror(onResize);
      }, 100); }
    });
    // When the window loses focus, we want to show the editor as blurred
    on(window, "blur", function () { return forEachCodeMirror(onBlur); });
  }
  // Called when the window resizes
  function onResize(cm) {
    var d = cm.display;
    // Might be a text scaling operation, clear size caches.
    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
    d.scrollbarsClipped = false;
    cm.setSize();
  }

  var keyNames = {
    3: "Pause", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
    19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
    36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
    46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
    106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 145: "ScrollLock",
    173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
    221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
    63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
  };

  // Number keys
  for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); }
  // Alphabetic keys
  for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); }
  // Function keys
  for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2; }

  var keyMap = {};

  keyMap.basic = {
    "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
    "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
    "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
    "Tab": "defaultTab", "Shift-Tab": "indentAuto",
    "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
    "Esc": "singleSelection"
  };
  // Note that the save and find-related commands aren't defined by
  // default. User code or addons can define them. Unknown commands
  // are simply ignored.
  keyMap.pcDefault = {
    "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
    "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
    "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
    "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
    "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
    "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
    "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
    "fallthrough": "basic"
  };
  // Very basic readline/emacs-style bindings, which are standard on Mac.
  keyMap.emacsy = {
    "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
    "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
    "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
    "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars",
    "Ctrl-O": "openLine"
  };
  keyMap.macDefault = {
    "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
    "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
    "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
    "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
    "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
    "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
    "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
    "fallthrough": ["basic", "emacsy"]
  };
  keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;

  // KEYMAP DISPATCH

  function normalizeKeyName(name) {
    var parts = name.split(/-(?!$)/);
    name = parts[parts.length - 1];
    var alt, ctrl, shift, cmd;
    for (var i = 0; i < parts.length - 1; i++) {
      var mod = parts[i];
      if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; }
      else if (/^a(lt)?$/i.test(mod)) { alt = true; }
      else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; }
      else if (/^s(hift)?$/i.test(mod)) { shift = true; }
      else { throw new Error("Unrecognized modifier name: " + mod) }
    }
    if (alt) { name = "Alt-" + name; }
    if (ctrl) { name = "Ctrl-" + name; }
    if (cmd) { name = "Cmd-" + name; }
    if (shift) { name = "Shift-" + name; }
    return name
  }

  // This is a kludge to keep keymaps mostly working as raw objects
  // (backwards compatibility) while at the same time support features
  // like normalization and multi-stroke key bindings. It compiles a
  // new normalized keymap, and then updates the old object to reflect
  // this.
  function normalizeKeyMap(keymap) {
    var copy = {};
    for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {
      var value = keymap[keyname];
      if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }
      if (value == "...") { delete keymap[keyname]; continue }

      var keys = map(keyname.split(" "), normalizeKeyName);
      for (var i = 0; i < keys.length; i++) {
        var val = (void 0), name = (void 0);
        if (i == keys.length - 1) {
          name = keys.join(" ");
          val = value;
        } else {
          name = keys.slice(0, i + 1).join(" ");
          val = "...";
        }
        var prev = copy[name];
        if (!prev) { copy[name] = val; }
        else if (prev != val) { throw new Error("Inconsistent bindings for " + name) }
      }
      delete keymap[keyname];
    } }
    for (var prop in copy) { keymap[prop] = copy[prop]; }
    return keymap
  }

  function lookupKey(key, map, handle, context) {
    map = getKeyMap(map);
    var found = map.call ? map.call(key, context) : map[key];
    if (found === false) { return "nothing" }
    if (found === "...") { return "multi" }
    if (found != null && handle(found)) { return "handled" }

    if (map.fallthrough) {
      if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
        { return lookupKey(key, map.fallthrough, handle, context) }
      for (var i = 0; i < map.fallthrough.length; i++) {
        var result = lookupKey(key, map.fallthrough[i], handle, context);
        if (result) { return result }
      }
    }
  }

  // Modifier key presses don't count as 'real' key presses for the
  // purpose of keymap fallthrough.
  function isModifierKey(value) {
    var name = typeof value == "string" ? value : keyNames[value.keyCode];
    return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
  }

  function addModifierNames(name, event, noShift) {
    var base = name;
    if (event.altKey && base != "Alt") { name = "Alt-" + name; }
    if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name; }
    if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") { name = "Cmd-" + name; }
    if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name; }
    return name
  }

  // Look up the name of a key as indicated by an event object.
  function keyName(event, noShift) {
    if (presto && event.keyCode == 34 && event["char"]) { return false }
    var name = keyNames[event.keyCode];
    if (name == null || event.altGraphKey) { return false }
    // Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause,
    // so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+)
    if (event.keyCode == 3 && event.code) { name = event.code; }
    return addModifierNames(name, event, noShift)
  }

  function getKeyMap(val) {
    return typeof val == "string" ? keyMap[val] : val
  }

  // Helper for deleting text near the selection(s), used to implement
  // backspace, delete, and similar functionality.
  function deleteNearSelection(cm, compute) {
    var ranges = cm.doc.sel.ranges, kill = [];
    // Build up a set of ranges to kill first, merging overlapping
    // ranges.
    for (var i = 0; i < ranges.length; i++) {
      var toKill = compute(ranges[i]);
      while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
        var replaced = kill.pop();
        if (cmp(replaced.from, toKill.from) < 0) {
          toKill.from = replaced.from;
          break
        }
      }
      kill.push(toKill);
    }
    // Next, remove those actual ranges.
    runInOp(cm, function () {
      for (var i = kill.length - 1; i >= 0; i--)
        { replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); }
      ensureCursorVisible(cm);
    });
  }

  function moveCharLogically(line, ch, dir) {
    var target = skipExtendingChars(line.text, ch + dir, dir);
    return target < 0 || target > line.text.length ? null : target
  }

  function moveLogically(line, start, dir) {
    var ch = moveCharLogically(line, start.ch, dir);
    return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before")
  }

  function endOfLine(visually, cm, lineObj, lineNo, dir) {
    if (visually) {
      if (cm.doc.direction == "rtl") { dir = -dir; }
      var order = getOrder(lineObj, cm.doc.direction);
      if (order) {
        var part = dir < 0 ? lst(order) : order[0];
        var moveInStorageOrder = (dir < 0) == (part.level == 1);
        var sticky = moveInStorageOrder ? "after" : "before";
        var ch;
        // With a wrapped rtl chunk (possibly spanning multiple bidi parts),
        // it could be that the last bidi part is not on the last visual line,
        // since visual lines contain content order-consecutive chunks.
        // Thus, in rtl, we are looking for the first (content-order) character
        // in the rtl chunk that is on the last line (that is, the same line
        // as the last (content-order) character).
        if (part.level > 0 || cm.doc.direction == "rtl") {
          var prep = prepareMeasureForLine(cm, lineObj);
          ch = dir < 0 ? lineObj.text.length - 1 : 0;
          var targetTop = measureCharPrepared(cm, prep, ch).top;
          ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch);
          if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1); }
        } else { ch = dir < 0 ? part.to : part.from; }
        return new Pos(lineNo, ch, sticky)
      }
    }
    return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after")
  }

  function moveVisually(cm, line, start, dir) {
    var bidi = getOrder(line, cm.doc.direction);
    if (!bidi) { return moveLogically(line, start, dir) }
    if (start.ch >= line.text.length) {
      start.ch = line.text.length;
      start.sticky = "before";
    } else if (start.ch <= 0) {
      start.ch = 0;
      start.sticky = "after";
    }
    var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos];
    if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {
      // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,
      // nothing interesting happens.
      return moveLogically(line, start, dir)
    }

    var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); };
    var prep;
    var getWrappedLineExtent = function (ch) {
      if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }
      prep = prep || prepareMeasureForLine(cm, line);
      return wrappedLineExtentChar(cm, line, prep, ch)
    };
    var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch);

    if (cm.doc.direction == "rtl" || part.level == 1) {
      var moveInStorageOrder = (part.level == 1) == (dir < 0);
      var ch = mv(start, moveInStorageOrder ? 1 : -1);
      if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {
        // Case 2: We move within an rtl part or in an rtl editor on the same visual line
        var sticky = moveInStorageOrder ? "before" : "after";
        return new Pos(start.line, ch, sticky)
      }
    }

    // Case 3: Could not move within this bidi part in this visual line, so leave
    // the current bidi part

    var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {
      var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder
        ? new Pos(start.line, mv(ch, 1), "before")
        : new Pos(start.line, ch, "after"); };

      for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {
        var part = bidi[partPos];
        var moveInStorageOrder = (dir > 0) == (part.level != 1);
        var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1);
        if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }
        ch = moveInStorageOrder ? part.from : mv(part.to, -1);
        if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }
      }
    };

    // Case 3a: Look for other bidi parts on the same visual line
    var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent);
    if (res) { return res }

    // Case 3b: Look for other bidi parts on the next visual line
    var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1);
    if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {
      res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh));
      if (res) { return res }
    }

    // Case 4: Nowhere to move
    return null
  }

  // Commands are parameter-less actions that can be performed on an
  // editor, mostly used for keybindings.
  var commands = {
    selectAll: selectAll,
    singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); },
    killLine: function (cm) { return deleteNearSelection(cm, function (range) {
      if (range.empty()) {
        var len = getLine(cm.doc, range.head.line).text.length;
        if (range.head.ch == len && range.head.line < cm.lastLine())
          { return {from: range.head, to: Pos(range.head.line + 1, 0)} }
        else
          { return {from: range.head, to: Pos(range.head.line, len)} }
      } else {
        return {from: range.from(), to: range.to()}
      }
    }); },
    deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({
      from: Pos(range.from().line, 0),
      to: clipPos(cm.doc, Pos(range.to().line + 1, 0))
    }); }); },
    delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({
      from: Pos(range.from().line, 0), to: range.from()
    }); }); },
    delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {
      var top = cm.charCoords(range.head, "div").top + 5;
      var leftPos = cm.coordsChar({left: 0, top: top}, "div");
      return {from: leftPos, to: range.from()}
    }); },
    delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {
      var top = cm.charCoords(range.head, "div").top + 5;
      var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
      return {from: range.from(), to: rightPos }
    }); },
    undo: function (cm) { return cm.undo(); },
    redo: function (cm) { return cm.redo(); },
    undoSelection: function (cm) { return cm.undoSelection(); },
    redoSelection: function (cm) { return cm.redoSelection(); },
    goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },
    goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },
    goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },
      {origin: "+move", bias: 1}
    ); },
    goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },
      {origin: "+move", bias: 1}
    ); },
    goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },
      {origin: "+move", bias: -1}
    ); },
    goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {
      var top = cm.cursorCoords(range.head, "div").top + 5;
      return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
    }, sel_move); },
    goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {
      var top = cm.cursorCoords(range.head, "div").top + 5;
      return cm.coordsChar({left: 0, top: top}, "div")
    }, sel_move); },
    goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {
      var top = cm.cursorCoords(range.head, "div").top + 5;
      var pos = cm.coordsChar({left: 0, top: top}, "div");
      if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) }
      return pos
    }, sel_move); },
    goLineUp: function (cm) { return cm.moveV(-1, "line"); },
    goLineDown: function (cm) { return cm.moveV(1, "line"); },
    goPageUp: function (cm) { return cm.moveV(-1, "page"); },
    goPageDown: function (cm) { return cm.moveV(1, "page"); },
    goCharLeft: function (cm) { return cm.moveH(-1, "char"); },
    goCharRight: function (cm) { return cm.moveH(1, "char"); },
    goColumnLeft: function (cm) { return cm.moveH(-1, "column"); },
    goColumnRight: function (cm) { return cm.moveH(1, "column"); },
    goWordLeft: function (cm) { return cm.moveH(-1, "word"); },
    goGroupRight: function (cm) { return cm.moveH(1, "group"); },
    goGroupLeft: function (cm) { return cm.moveH(-1, "group"); },
    goWordRight: function (cm) { return cm.moveH(1, "word"); },
    delCharBefore: function (cm) { return cm.deleteH(-1, "char"); },
    delCharAfter: function (cm) { return cm.deleteH(1, "char"); },
    delWordBefore: function (cm) { return cm.deleteH(-1, "word"); },
    delWordAfter: function (cm) { return cm.deleteH(1, "word"); },
    delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); },
    delGroupAfter: function (cm) { return cm.deleteH(1, "group"); },
    indentAuto: function (cm) { return cm.indentSelection("smart"); },
    indentMore: function (cm) { return cm.indentSelection("add"); },
    indentLess: function (cm) { return cm.indentSelection("subtract"); },
    insertTab: function (cm) { return cm.replaceSelection("\t"); },
    insertSoftTab: function (cm) {
      var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
      for (var i = 0; i < ranges.length; i++) {
        var pos = ranges[i].from();
        var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
        spaces.push(spaceStr(tabSize - col % tabSize));
      }
      cm.replaceSelections(spaces);
    },
    defaultTab: function (cm) {
      if (cm.somethingSelected()) { cm.indentSelection("add"); }
      else { cm.execCommand("insertTab"); }
    },
    // Swap the two chars left and right of each selection's head.
    // Move cursor behind the two swapped characters afterwards.
    //
    // Doesn't consider line feeds a character.
    // Doesn't scan more than one line above to find a character.
    // Doesn't do anything on an empty line.
    // Doesn't do anything with non-empty selections.
    transposeChars: function (cm) { return runInOp(cm, function () {
      var ranges = cm.listSelections(), newSel = [];
      for (var i = 0; i < ranges.length; i++) {
        if (!ranges[i].empty()) { continue }
        var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
        if (line) {
          if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); }
          if (cur.ch > 0) {
            cur = new Pos(cur.line, cur.ch + 1);
            cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
                            Pos(cur.line, cur.ch - 2), cur, "+transpose");
          } else if (cur.line > cm.doc.first) {
            var prev = getLine(cm.doc, cur.line - 1).text;
            if (prev) {
              cur = new Pos(cur.line, 1);
              cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
                              prev.charAt(prev.length - 1),
                              Pos(cur.line - 1, prev.length - 1), cur, "+transpose");
            }
          }
        }
        newSel.push(new Range(cur, cur));
      }
      cm.setSelections(newSel);
    }); },
    newlineAndIndent: function (cm) { return runInOp(cm, function () {
      var sels = cm.listSelections();
      for (var i = sels.length - 1; i >= 0; i--)
        { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input"); }
      sels = cm.listSelections();
      for (var i$1 = 0; i$1 < sels.length; i$1++)
        { cm.indentLine(sels[i$1].from().line, null, true); }
      ensureCursorVisible(cm);
    }); },
    openLine: function (cm) { return cm.replaceSelection("\n", "start"); },
    toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }
  };


  function lineStart(cm, lineN) {
    var line = getLine(cm.doc, lineN);
    var visual = visualLine(line);
    if (visual != line) { lineN = lineNo(visual); }
    return endOfLine(true, cm, visual, lineN, 1)
  }
  function lineEnd(cm, lineN) {
    var line = getLine(cm.doc, lineN);
    var visual = visualLineEnd(line);
    if (visual != line) { lineN = lineNo(visual); }
    return endOfLine(true, cm, line, lineN, -1)
  }
  function lineStartSmart(cm, pos) {
    var start = lineStart(cm, pos.line);
    var line = getLine(cm.doc, start.line);
    var order = getOrder(line, cm.doc.direction);
    if (!order || order[0].level == 0) {
      var firstNonWS = Math.max(start.ch, line.text.search(/\S/));
      var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
      return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)
    }
    return start
  }

  // Run a handler that was bound to a key.
  function doHandleBinding(cm, bound, dropShift) {
    if (typeof bound == "string") {
      bound = commands[bound];
      if (!bound) { return false }
    }
    // Ensure previous input has been read, so that the handler sees a
    // consistent view of the document
    cm.display.input.ensurePolled();
    var prevShift = cm.display.shift, done = false;
    try {
      if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
      if (dropShift) { cm.display.shift = false; }
      done = bound(cm) != Pass;
    } finally {
      cm.display.shift = prevShift;
      cm.state.suppressEdits = false;
    }
    return done
  }

  function lookupKeyForEditor(cm, name, handle) {
    for (var i = 0; i < cm.state.keyMaps.length; i++) {
      var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);
      if (result) { return result }
    }
    return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
      || lookupKey(name, cm.options.keyMap, handle, cm)
  }

  // Note that, despite the name, this function is also used to check
  // for bound mouse clicks.

  var stopSeq = new Delayed;

  function dispatchKey(cm, name, e, handle) {
    var seq = cm.state.keySeq;
    if (seq) {
      if (isModifierKey(name)) { return "handled" }
      if (/\'$/.test(name))
        { cm.state.keySeq = null; }
      else
        { stopSeq.set(50, function () {
          if (cm.state.keySeq == seq) {
            cm.state.keySeq = null;
            cm.display.input.reset();
          }
        }); }
      if (dispatchKeyInner(cm, seq + " " + name, e, handle)) { return true }
    }
    return dispatchKeyInner(cm, name, e, handle)
  }

  function dispatchKeyInner(cm, name, e, handle) {
    var result = lookupKeyForEditor(cm, name, handle);

    if (result == "multi")
      { cm.state.keySeq = name; }
    if (result == "handled")
      { signalLater(cm, "keyHandled", cm, name, e); }

    if (result == "handled" || result == "multi") {
      e_preventDefault(e);
      restartBlink(cm);
    }

    return !!result
  }

  // Handle a key from the keydown event.
  function handleKeyBinding(cm, e) {
    var name = keyName(e, true);
    if (!name) { return false }

    if (e.shiftKey && !cm.state.keySeq) {
      // First try to resolve full name (including 'Shift-'). Failing
      // that, see if there is a cursor-motion command (starting with
      // 'go') bound to the keyname without 'Shift-'.
      return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); })
          || dispatchKey(cm, name, e, function (b) {
               if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
                 { return doHandleBinding(cm, b) }
             })
    } else {
      return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })
    }
  }

  // Handle a key from the keypress event
  function handleCharBinding(cm, e, ch) {
    return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); })
  }

  var lastStoppedKey = null;
  function onKeyDown(e) {
    var cm = this;
    if (e.target && e.target != cm.display.input.getField()) { return }
    cm.curOp.focus = activeElt();
    if (signalDOMEvent(cm, e)) { return }
    // IE does strange things with escape.
    if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; }
    var code = e.keyCode;
    cm.display.shift = code == 16 || e.shiftKey;
    var handled = handleKeyBinding(cm, e);
    if (presto) {
      lastStoppedKey = handled ? code : null;
      // Opera has no cut event... we try to at least catch the key combo
      if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
        { cm.replaceSelection("", null, "cut"); }
    }
    if (gecko && !mac && !handled && code == 46 && e.shiftKey && !e.ctrlKey && document.execCommand)
      { document.execCommand("cut"); }

    // Turn mouse into crosshair when Alt is held on Mac.
    if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
      { showCrossHair(cm); }
  }

  function showCrossHair(cm) {
    var lineDiv = cm.display.lineDiv;
    addClass(lineDiv, "CodeMirror-crosshair");

    function up(e) {
      if (e.keyCode == 18 || !e.altKey) {
        rmClass(lineDiv, "CodeMirror-crosshair");
        off(document, "keyup", up);
        off(document, "mouseover", up);
      }
    }
    on(document, "keyup", up);
    on(document, "mouseover", up);
  }

  function onKeyUp(e) {
    if (e.keyCode == 16) { this.doc.sel.shift = false; }
    signalDOMEvent(this, e);
  }

  function onKeyPress(e) {
    var cm = this;
    if (e.target && e.target != cm.display.input.getField()) { return }
    if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return }
    var keyCode = e.keyCode, charCode = e.charCode;
    if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}
    if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return }
    var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
    // Some browsers fire keypress events for backspace
    if (ch == "\x08") { return }
    if (handleCharBinding(cm, e, ch)) { return }
    cm.display.input.onKeyPress(e);
  }

  var DOUBLECLICK_DELAY = 400;

  var PastClick = function(time, pos, button) {
    this.time = time;
    this.pos = pos;
    this.button = button;
  };

  PastClick.prototype.compare = function (time, pos, button) {
    return this.time + DOUBLECLICK_DELAY > time &&
      cmp(pos, this.pos) == 0 && button == this.button
  };

  var lastClick, lastDoubleClick;
  function clickRepeat(pos, button) {
    var now = +new Date;
    if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) {
      lastClick = lastDoubleClick = null;
      return "triple"
    } else if (lastClick && lastClick.compare(now, pos, button)) {
      lastDoubleClick = new PastClick(now, pos, button);
      lastClick = null;
      return "double"
    } else {
      lastClick = new PastClick(now, pos, button);
      lastDoubleClick = null;
      return "single"
    }
  }

  // A mouse down can be a single click, double click, triple click,
  // start of selection drag, start of text drag, new cursor
  // (ctrl-click), rectangle drag (alt-drag), or xwin
  // middle-click-paste. Or it might be a click on something we should
  // not interfere with, such as a scrollbar or widget.
  function onMouseDown(e) {
    var cm = this, display = cm.display;
    if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }
    display.input.ensurePolled();
    display.shift = e.shiftKey;

    if (eventInWidget(display, e)) {
      if (!webkit) {
        // Briefly turn off draggability, to allow widgets to do
        // normal dragging things.
        display.scroller.draggable = false;
        setTimeout(function () { return display.scroller.draggable = true; }, 100);
      }
      return
    }
    if (clickInGutter(cm, e)) { return }
    var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : "single";
    window.focus();

    // #3261: make sure, that we're not starting a second selection
    if (button == 1 && cm.state.selectingText)
      { cm.state.selectingText(e); }

    if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return }

    if (button == 1) {
      if (pos) { leftButtonDown(cm, pos, repeat, e); }
      else if (e_target(e) == display.scroller) { e_preventDefault(e); }
    } else if (button == 2) {
      if (pos) { extendSelection(cm.doc, pos); }
      setTimeout(function () { return display.input.focus(); }, 20);
    } else if (button == 3) {
      if (captureRightClick) { cm.display.input.onContextMenu(e); }
      else { delayBlurEvent(cm); }
    }
  }

  function handleMappedButton(cm, button, pos, repeat, event) {
    var name = "Click";
    if (repeat == "double") { name = "Double" + name; }
    else if (repeat == "triple") { name = "Triple" + name; }
    name = (button == 1 ? "Left" : button == 2 ? "Middle" : "Right") + name;

    return dispatchKey(cm,  addModifierNames(name, event), event, function (bound) {
      if (typeof bound == "string") { bound = commands[bound]; }
      if (!bound) { return false }
      var done = false;
      try {
        if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
        done = bound(cm, pos) != Pass;
      } finally {
        cm.state.suppressEdits = false;
      }
      return done
    })
  }

  function configureMouse(cm, repeat, event) {
    var option = cm.getOption("configureMouse");
    var value = option ? option(cm, repeat, event) : {};
    if (value.unit == null) {
      var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey;
      value.unit = rect ? "rectangle" : repeat == "single" ? "char" : repeat == "double" ? "word" : "line";
    }
    if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; }
    if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; }
    if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); }
    return value
  }

  function leftButtonDown(cm, pos, repeat, event) {
    if (ie) { setTimeout(bind(ensureFocus, cm), 0); }
    else { cm.curOp.focus = activeElt(); }

    var behavior = configureMouse(cm, repeat, event);

    var sel = cm.doc.sel, contained;
    if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&
        repeat == "single" && (contained = sel.contains(pos)) > -1 &&
        (cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) &&
        (cmp(contained.to(), pos) > 0 || pos.xRel < 0))
      { leftButtonStartDrag(cm, event, pos, behavior); }
    else
      { leftButtonSelect(cm, event, pos, behavior); }
  }

  // Start a text drag. When it ends, see if any dragging actually
  // happen, and treat as a click if it didn't.
  function leftButtonStartDrag(cm, event, pos, behavior) {
    var display = cm.display, moved = false;
    var dragEnd = operation(cm, function (e) {
      if (webkit) { display.scroller.draggable = false; }
      cm.state.draggingText = false;
      off(display.wrapper.ownerDocument, "mouseup", dragEnd);
      off(display.wrapper.ownerDocument, "mousemove", mouseMove);
      off(display.scroller, "dragstart", dragStart);
      off(display.scroller, "drop", dragEnd);
      if (!moved) {
        e_preventDefault(e);
        if (!behavior.addNew)
          { extendSelection(cm.doc, pos, null, null, behavior.extend); }
        // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
        if ((webkit && !safari) || ie && ie_version == 9)
          { setTimeout(function () {display.wrapper.ownerDocument.body.focus({preventScroll: true}); display.input.focus();}, 20); }
        else
          { display.input.focus(); }
      }
    });
    var mouseMove = function(e2) {
      moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10;
    };
    var dragStart = function () { return moved = true; };
    // Let the drag handler handle this.
    if (webkit) { display.scroller.draggable = true; }
    cm.state.draggingText = dragEnd;
    dragEnd.copy = !behavior.moveOnDrag;
    // IE's approach to draggable
    if (display.scroller.dragDrop) { display.scroller.dragDrop(); }
    on(display.wrapper.ownerDocument, "mouseup", dragEnd);
    on(display.wrapper.ownerDocument, "mousemove", mouseMove);
    on(display.scroller, "dragstart", dragStart);
    on(display.scroller, "drop", dragEnd);

    delayBlurEvent(cm);
    setTimeout(function () { return display.input.focus(); }, 20);
  }

  function rangeForUnit(cm, pos, unit) {
    if (unit == "char") { return new Range(pos, pos) }
    if (unit == "word") { return cm.findWordAt(pos) }
    if (unit == "line") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }
    var result = unit(cm, pos);
    return new Range(result.from, result.to)
  }

  // Normal selection, as opposed to text dragging.
  function leftButtonSelect(cm, event, start, behavior) {
    var display = cm.display, doc = cm.doc;
    e_preventDefault(event);

    var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;
    if (behavior.addNew && !behavior.extend) {
      ourIndex = doc.sel.contains(start);
      if (ourIndex > -1)
        { ourRange = ranges[ourIndex]; }
      else
        { ourRange = new Range(start, start); }
    } else {
      ourRange = doc.sel.primary();
      ourIndex = doc.sel.primIndex;
    }

    if (behavior.unit == "rectangle") {
      if (!behavior.addNew) { ourRange = new Range(start, start); }
      start = posFromMouse(cm, event, true, true);
      ourIndex = -1;
    } else {
      var range = rangeForUnit(cm, start, behavior.unit);
      if (behavior.extend)
        { ourRange = extendRange(ourRange, range.anchor, range.head, behavior.extend); }
      else
        { ourRange = range; }
    }

    if (!behavior.addNew) {
      ourIndex = 0;
      setSelection(doc, new Selection([ourRange], 0), sel_mouse);
      startSel = doc.sel;
    } else if (ourIndex == -1) {
      ourIndex = ranges.length;
      setSelection(doc, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex),
                   {scroll: false, origin: "*mouse"});
    } else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == "char" && !behavior.extend) {
      setSelection(doc, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
                   {scroll: false, origin: "*mouse"});
      startSel = doc.sel;
    } else {
      replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
    }

    var lastPos = start;
    function extendTo(pos) {
      if (cmp(lastPos, pos) == 0) { return }
      lastPos = pos;

      if (behavior.unit == "rectangle") {
        var ranges = [], tabSize = cm.options.tabSize;
        var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
        var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
        var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
        for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
             line <= end; line++) {
          var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
          if (left == right)
            { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); }
          else if (text.length > leftPos)
            { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); }
        }
        if (!ranges.length) { ranges.push(new Range(start, start)); }
        setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
                     {origin: "*mouse", scroll: false});
        cm.scrollIntoView(pos);
      } else {
        var oldRange = ourRange;
        var range = rangeForUnit(cm, pos, behavior.unit);
        var anchor = oldRange.anchor, head;
        if (cmp(range.anchor, anchor) > 0) {
          head = range.head;
          anchor = minPos(oldRange.from(), range.anchor);
        } else {
          head = range.anchor;
          anchor = maxPos(oldRange.to(), range.head);
        }
        var ranges$1 = startSel.ranges.slice(0);
        ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head));
        setSelection(doc, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse);
      }
    }

    var editorSize = display.wrapper.getBoundingClientRect();
    // Used to ensure timeout re-tries don't fire when another extend
    // happened in the meantime (clearTimeout isn't reliable -- at
    // least on Chrome, the timeouts still happen even when cleared,
    // if the clear happens after their scheduled firing time).
    var counter = 0;

    function extend(e) {
      var curCount = ++counter;
      var cur = posFromMouse(cm, e, true, behavior.unit == "rectangle");
      if (!cur) { return }
      if (cmp(cur, lastPos) != 0) {
        cm.curOp.focus = activeElt();
        extendTo(cur);
        var visible = visibleLines(display, doc);
        if (cur.line >= visible.to || cur.line < visible.from)
          { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); }
      } else {
        var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
        if (outside) { setTimeout(operation(cm, function () {
          if (counter != curCount) { return }
          display.scroller.scrollTop += outside;
          extend(e);
        }), 50); }
      }
    }

    function done(e) {
      cm.state.selectingText = false;
      counter = Infinity;
      // If e is null or undefined we interpret this as someone trying
      // to explicitly cancel the selection rather than the user
      // letting go of the mouse button.
      if (e) {
        e_preventDefault(e);
        display.input.focus();
      }
      off(display.wrapper.ownerDocument, "mousemove", move);
      off(display.wrapper.ownerDocument, "mouseup", up);
      doc.history.lastSelOrigin = null;
    }

    var move = operation(cm, function (e) {
      if (e.buttons === 0 || !e_button(e)) { done(e); }
      else { extend(e); }
    });
    var up = operation(cm, done);
    cm.state.selectingText = up;
    on(display.wrapper.ownerDocument, "mousemove", move);
    on(display.wrapper.ownerDocument, "mouseup", up);
  }

  // Used when mouse-selecting to adjust the anchor to the proper side
  // of a bidi jump depending on the visual position of the head.
  function bidiSimplify(cm, range) {
    var anchor = range.anchor;
    var head = range.head;
    var anchorLine = getLine(cm.doc, anchor.line);
    if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range }
    var order = getOrder(anchorLine);
    if (!order) { return range }
    var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index];
    if (part.from != anchor.ch && part.to != anchor.ch) { return range }
    var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1);
    if (boundary == 0 || boundary == order.length) { return range }

    // Compute the relative visual position of the head compared to the
    // anchor (<0 is to the left, >0 to the right)
    var leftSide;
    if (head.line != anchor.line) {
      leftSide = (head.line - anchor.line) * (cm.doc.direction == "ltr" ? 1 : -1) > 0;
    } else {
      var headIndex = getBidiPartAt(order, head.ch, head.sticky);
      var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1);
      if (headIndex == boundary - 1 || headIndex == boundary)
        { leftSide = dir < 0; }
      else
        { leftSide = dir > 0; }
    }

    var usePart = order[boundary + (leftSide ? -1 : 0)];
    var from = leftSide == (usePart.level == 1);
    var ch = from ? usePart.from : usePart.to, sticky = from ? "after" : "before";
    return anchor.ch == ch && anchor.sticky == sticky ? range : new Range(new Pos(anchor.line, ch, sticky), head)
  }


  // Determines whether an event happened in the gutter, and fires the
  // handlers for the corresponding event.
  function gutterEvent(cm, e, type, prevent) {
    var mX, mY;
    if (e.touches) {
      mX = e.touches[0].clientX;
      mY = e.touches[0].clientY;
    } else {
      try { mX = e.clientX; mY = e.clientY; }
      catch(e$1) { return false }
    }
    if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }
    if (prevent) { e_preventDefault(e); }

    var display = cm.display;
    var lineBox = display.lineDiv.getBoundingClientRect();

    if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }
    mY -= lineBox.top - display.viewOffset;

    for (var i = 0; i < cm.display.gutterSpecs.length; ++i) {
      var g = display.gutters.childNodes[i];
      if (g && g.getBoundingClientRect().right >= mX) {
        var line = lineAtHeight(cm.doc, mY);
        var gutter = cm.display.gutterSpecs[i];
        signal(cm, type, cm, line, gutter.className, e);
        return e_defaultPrevented(e)
      }
    }
  }

  function clickInGutter(cm, e) {
    return gutterEvent(cm, e, "gutterClick", true)
  }

  // CONTEXT MENU HANDLING

  // To make the context menu work, we need to briefly unhide the
  // textarea (making it as unobtrusive as possible) to let the
  // right-click take effect on it.
  function onContextMenu(cm, e) {
    if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }
    if (signalDOMEvent(cm, e, "contextmenu")) { return }
    if (!captureRightClick) { cm.display.input.onContextMenu(e); }
  }

  function contextMenuInGutter(cm, e) {
    if (!hasHandler(cm, "gutterContextMenu")) { return false }
    return gutterEvent(cm, e, "gutterContextMenu", false)
  }

  function themeChanged(cm) {
    cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
      cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
    clearCaches(cm);
  }

  var Init = {toString: function(){return "CodeMirror.Init"}};

  var defaults = {};
  var optionHandlers = {};

  function defineOptions(CodeMirror) {
    var optionHandlers = CodeMirror.optionHandlers;

    function option(name, deflt, handle, notOnInit) {
      CodeMirror.defaults[name] = deflt;
      if (handle) { optionHandlers[name] =
        notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; }
    }

    CodeMirror.defineOption = option;

    // Passed to option handlers when there is no old value.
    CodeMirror.Init = Init;

    // These two are, on init, called from the constructor because they
    // have to be initialized before the editor can start at all.
    option("value", "", function (cm, val) { return cm.setValue(val); }, true);
    option("mode", null, function (cm, val) {
      cm.doc.modeOption = val;
      loadMode(cm);
    }, true);

    option("indentUnit", 2, loadMode, true);
    option("indentWithTabs", false);
    option("smartIndent", true);
    option("tabSize", 4, function (cm) {
      resetModeState(cm);
      clearCaches(cm);
      regChange(cm);
    }, true);

    option("lineSeparator", null, function (cm, val) {
      cm.doc.lineSep = val;
      if (!val) { return }
      var newBreaks = [], lineNo = cm.doc.first;
      cm.doc.iter(function (line) {
        for (var pos = 0;;) {
          var found = line.text.indexOf(val, pos);
          if (found == -1) { break }
          pos = found + val.length;
          newBreaks.push(Pos(lineNo, found));
        }
        lineNo++;
      });
      for (var i = newBreaks.length - 1; i >= 0; i--)
        { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); }
    });
    option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200c\u200e\u200f\u2028\u2029\ufeff\ufff9-\ufffc]/g, function (cm, val, old) {
      cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
      if (old != Init) { cm.refresh(); }
    });
    option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true);
    option("electricChars", true);
    option("inputStyle", mobile ? "contenteditable" : "textarea", function () {
      throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME
    }, true);
    option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true);
    option("autocorrect", false, function (cm, val) { return cm.getInputField().autocorrect = val; }, true);
    option("autocapitalize", false, function (cm, val) { return cm.getInputField().autocapitalize = val; }, true);
    option("rtlMoveVisually", !windows);
    option("wholeLineUpdateBefore", true);

    option("theme", "default", function (cm) {
      themeChanged(cm);
      updateGutters(cm);
    }, true);
    option("keyMap", "default", function (cm, val, old) {
      var next = getKeyMap(val);
      var prev = old != Init && getKeyMap(old);
      if (prev && prev.detach) { prev.detach(cm, next); }
      if (next.attach) { next.attach(cm, prev || null); }
    });
    option("extraKeys", null);
    option("configureMouse", null);

    option("lineWrapping", false, wrappingChanged, true);
    option("gutters", [], function (cm, val) {
      cm.display.gutterSpecs = getGutters(val, cm.options.lineNumbers);
      updateGutters(cm);
    }, true);
    option("fixedGutter", true, function (cm, val) {
      cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
      cm.refresh();
    }, true);
    option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true);
    option("scrollbarStyle", "native", function (cm) {
      initScrollbars(cm);
      updateScrollbars(cm);
      cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
      cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
    }, true);
    option("lineNumbers", false, function (cm, val) {
      cm.display.gutterSpecs = getGutters(cm.options.gutters, val);
      updateGutters(cm);
    }, true);
    option("firstLineNumber", 1, updateGutters, true);
    option("lineNumberFormatter", function (integer) { return integer; }, updateGutters, true);
    option("showCursorWhenSelecting", false, updateSelection, true);

    option("resetSelectionOnContextMenu", true);
    option("lineWiseCopyCut", true);
    option("pasteLinesPerSelection", true);
    option("selectionsMayTouch", false);

    option("readOnly", false, function (cm, val) {
      if (val == "nocursor") {
        onBlur(cm);
        cm.display.input.blur();
      }
      cm.display.input.readOnlyChanged(val);
    });

    option("screenReaderLabel", null, function (cm, val) {
      val = (val === '') ? null : val;
      cm.display.input.screenReaderLabelChanged(val);
    });

    option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true);
    option("dragDrop", true, dragDropChanged);
    option("allowDropFileTypes", null);

    option("cursorBlinkRate", 530);
    option("cursorScrollMargin", 0);
    option("cursorHeight", 1, updateSelection, true);
    option("singleCursorHeightPerLine", true, updateSelection, true);
    option("workTime", 100);
    option("workDelay", 100);
    option("flattenSpans", true, resetModeState, true);
    option("addModeClass", false, resetModeState, true);
    option("pollInterval", 100);
    option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; });
    option("historyEventDelay", 1250);
    option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true);
    option("maxHighlightLength", 10000, resetModeState, true);
    option("moveInputWithCursor", true, function (cm, val) {
      if (!val) { cm.display.input.resetPosition(); }
    });

    option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; });
    option("autofocus", null);
    option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true);
    option("phrases", null);
  }

  function dragDropChanged(cm, value, old) {
    var wasOn = old && old != Init;
    if (!value != !wasOn) {
      var funcs = cm.display.dragFunctions;
      var toggle = value ? on : off;
      toggle(cm.display.scroller, "dragstart", funcs.start);
      toggle(cm.display.scroller, "dragenter", funcs.enter);
      toggle(cm.display.scroller, "dragover", funcs.over);
      toggle(cm.display.scroller, "dragleave", funcs.leave);
      toggle(cm.display.scroller, "drop", funcs.drop);
    }
  }

  function wrappingChanged(cm) {
    if (cm.options.lineWrapping) {
      addClass(cm.display.wrapper, "CodeMirror-wrap");
      cm.display.sizer.style.minWidth = "";
      cm.display.sizerWidth = null;
    } else {
      rmClass(cm.display.wrapper, "CodeMirror-wrap");
      findMaxLine(cm);
    }
    estimateLineHeights(cm);
    regChange(cm);
    clearCaches(cm);
    setTimeout(function () { return updateScrollbars(cm); }, 100);
  }

  // A CodeMirror instance represents an editor. This is the object
  // that user code is usually dealing with.

  function CodeMirror(place, options) {
    var this$1 = this;

    if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) }

    this.options = options = options ? copyObj(options) : {};
    // Determine effective options based on given values and defaults.
    copyObj(defaults, options, false);

    var doc = options.value;
    if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); }
    else if (options.mode) { doc.modeOption = options.mode; }
    this.doc = doc;

    var input = new CodeMirror.inputStyles[options.inputStyle](this);
    var display = this.display = new Display(place, doc, input, options);
    display.wrapper.CodeMirror = this;
    themeChanged(this);
    if (options.lineWrapping)
      { this.display.wrapper.className += " CodeMirror-wrap"; }
    initScrollbars(this);

    this.state = {
      keyMaps: [],  // stores maps added by addKeyMap
      overlays: [], // highlighting overlays, as added by addOverlay
      modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info
      overwrite: false,
      delayingBlurEvent: false,
      focused: false,
      suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
      pasteIncoming: -1, cutIncoming: -1, // help recognize paste/cut edits in input.poll
      selectingText: false,
      draggingText: false,
      highlight: new Delayed(), // stores highlight worker timeout
      keySeq: null,  // Unfinished key sequence
      specialChars: null
    };

    if (options.autofocus && !mobile) { display.input.focus(); }

    // Override magic textarea content restore that IE sometimes does
    // on our hidden textarea on reload
    if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); }

    registerEventHandlers(this);
    ensureGlobalHandlers();

    startOperation(this);
    this.curOp.forceUpdate = true;
    attachDoc(this, doc);

    if ((options.autofocus && !mobile) || this.hasFocus())
      { setTimeout(bind(onFocus, this), 20); }
    else
      { onBlur(this); }

    for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))
      { optionHandlers[opt](this, options[opt], Init); } }
    maybeUpdateLineNumberWidth(this);
    if (options.finishInit) { options.finishInit(this); }
    for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this); }
    endOperation(this);
    // Suppress optimizelegibility in Webkit, since it breaks text
    // measuring on line wrapping boundaries.
    if (webkit && options.lineWrapping &&
        getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
      { display.lineDiv.style.textRendering = "auto"; }
  }

  // The default configuration options.
  CodeMirror.defaults = defaults;
  // Functions to run when options are changed.
  CodeMirror.optionHandlers = optionHandlers;

  // Attach the necessary event handlers when initializing the editor
  function registerEventHandlers(cm) {
    var d = cm.display;
    on(d.scroller, "mousedown", operation(cm, onMouseDown));
    // Older IE's will not fire a second mousedown for a double click
    if (ie && ie_version < 11)
      { on(d.scroller, "dblclick", operation(cm, function (e) {
        if (signalDOMEvent(cm, e)) { return }
        var pos = posFromMouse(cm, e);
        if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }
        e_preventDefault(e);
        var word = cm.findWordAt(pos);
        extendSelection(cm.doc, word.anchor, word.head);
      })); }
    else
      { on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); }
    // Some browsers fire contextmenu *after* opening the menu, at
    // which point we can't mess with it anymore. Context menu is
    // handled in onMouseDown for these browsers.
    on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); });
    on(d.input.getField(), "contextmenu", function (e) {
      if (!d.scroller.contains(e.target)) { onContextMenu(cm, e); }
    });

    // Used to suppress mouse event handling when a touch happens
    var touchFinished, prevTouch = {end: 0};
    function finishTouch() {
      if (d.activeTouch) {
        touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000);
        prevTouch = d.activeTouch;
        prevTouch.end = +new Date;
      }
    }
    function isMouseLikeTouchEvent(e) {
      if (e.touches.length != 1) { return false }
      var touch = e.touches[0];
      return touch.radiusX <= 1 && touch.radiusY <= 1
    }
    function farAway(touch, other) {
      if (other.left == null) { return true }
      var dx = other.left - touch.left, dy = other.top - touch.top;
      return dx * dx + dy * dy > 20 * 20
    }
    on(d.scroller, "touchstart", function (e) {
      if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) {
        d.input.ensurePolled();
        clearTimeout(touchFinished);
        var now = +new Date;
        d.activeTouch = {start: now, moved: false,
                         prev: now - prevTouch.end <= 300 ? prevTouch : null};
        if (e.touches.length == 1) {
          d.activeTouch.left = e.touches[0].pageX;
          d.activeTouch.top = e.touches[0].pageY;
        }
      }
    });
    on(d.scroller, "touchmove", function () {
      if (d.activeTouch) { d.activeTouch.moved = true; }
    });
    on(d.scroller, "touchend", function (e) {
      var touch = d.activeTouch;
      if (touch && !eventInWidget(d, e) && touch.left != null &&
          !touch.moved && new Date - touch.start < 300) {
        var pos = cm.coordsChar(d.activeTouch, "page"), range;
        if (!touch.prev || farAway(touch, touch.prev)) // Single tap
          { range = new Range(pos, pos); }
        else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
          { range = cm.findWordAt(pos); }
        else // Triple tap
          { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); }
        cm.setSelection(range.anchor, range.head);
        cm.focus();
        e_preventDefault(e);
      }
      finishTouch();
    });
    on(d.scroller, "touchcancel", finishTouch);

    // Sync scrolling between fake scrollbars and real scrollable
    // area, ensure viewport is updated when scrolling.
    on(d.scroller, "scroll", function () {
      if (d.scroller.clientHeight) {
        updateScrollTop(cm, d.scroller.scrollTop);
        setScrollLeft(cm, d.scroller.scrollLeft, true);
        signal(cm, "scroll", cm);
      }
    });

    // Listen to wheel events in order to try and update the viewport on time.
    on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); });
    on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); });

    // Prevent wrapper from ever scrolling
    on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });

    d.dragFunctions = {
      enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }},
      over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},
      start: function (e) { return onDragStart(cm, e); },
      drop: operation(cm, onDrop),
      leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }}
    };

    var inp = d.input.getField();
    on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); });
    on(inp, "keydown", operation(cm, onKeyDown));
    on(inp, "keypress", operation(cm, onKeyPress));
    on(inp, "focus", function (e) { return onFocus(cm, e); });
    on(inp, "blur", function (e) { return onBlur(cm, e); });
  }

  var initHooks = [];
  CodeMirror.defineInitHook = function (f) { return initHooks.push(f); };

  // Indent the given line. The how parameter can be "smart",
  // "add"/null, "subtract", or "prev". When aggressive is false
  // (typically set to true for forced single-line indents), empty
  // lines are not indented, and places where the mode returns Pass
  // are left alone.
  function indentLine(cm, n, how, aggressive) {
    var doc = cm.doc, state;
    if (how == null) { how = "add"; }
    if (how == "smart") {
      // Fall back to "prev" when the mode doesn't have an indentation
      // method.
      if (!doc.mode.indent) { how = "prev"; }
      else { state = getContextBefore(cm, n).state; }
    }

    var tabSize = cm.options.tabSize;
    var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
    if (line.stateAfter) { line.stateAfter = null; }
    var curSpaceString = line.text.match(/^\s*/)[0], indentation;
    if (!aggressive && !/\S/.test(line.text)) {
      indentation = 0;
      how = "not";
    } else if (how == "smart") {
      indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
      if (indentation == Pass || indentation > 150) {
        if (!aggressive) { return }
        how = "prev";
      }
    }
    if (how == "prev") {
      if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); }
      else { indentation = 0; }
    } else if (how == "add") {
      indentation = curSpace + cm.options.indentUnit;
    } else if (how == "subtract") {
      indentation = curSpace - cm.options.indentUnit;
    } else if (typeof how == "number") {
      indentation = curSpace + how;
    }
    indentation = Math.max(0, indentation);

    var indentString = "", pos = 0;
    if (cm.options.indentWithTabs)
      { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} }
    if (pos < indentation) { indentString += spaceStr(indentation - pos); }

    if (indentString != curSpaceString) {
      replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
      line.stateAfter = null;
      return true
    } else {
      // Ensure that, if the cursor was in the whitespace at the start
      // of the line, it is moved to the end of that space.
      for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {
        var range = doc.sel.ranges[i$1];
        if (range.head.line == n && range.head.ch < curSpaceString.length) {
          var pos$1 = Pos(n, curSpaceString.length);
          replaceOneSelection(doc, i$1, new Range(pos$1, pos$1));
          break
        }
      }
    }
  }

  // This will be set to a {lineWise: bool, text: [string]} object, so
  // that, when pasting, we know what kind of selections the copied
  // text was made out of.
  var lastCopied = null;

  function setLastCopied(newLastCopied) {
    lastCopied = newLastCopied;
  }

  function applyTextInput(cm, inserted, deleted, sel, origin) {
    var doc = cm.doc;
    cm.display.shift = false;
    if (!sel) { sel = doc.sel; }

    var recent = +new Date - 200;
    var paste = origin == "paste" || cm.state.pasteIncoming > recent;
    var textLines = splitLinesAuto(inserted), multiPaste = null;
    // When pasting N lines into N selections, insert one line per selection
    if (paste && sel.ranges.length > 1) {
      if (lastCopied && lastCopied.text.join("\n") == inserted) {
        if (sel.ranges.length % lastCopied.text.length == 0) {
          multiPaste = [];
          for (var i = 0; i < lastCopied.text.length; i++)
            { multiPaste.push(doc.splitLines(lastCopied.text[i])); }
        }
      } else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {
        multiPaste = map(textLines, function (l) { return [l]; });
      }
    }

    var updateInput = cm.curOp.updateInput;
    // Normal behavior is to insert the new text into every selection
    for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {
      var range = sel.ranges[i$1];
      var from = range.from(), to = range.to();
      if (range.empty()) {
        if (deleted && deleted > 0) // Handle deletion
          { from = Pos(from.line, from.ch - deleted); }
        else if (cm.state.overwrite && !paste) // Handle overwrite
          { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); }
        else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == textLines.join("\n"))
          { from = to = Pos(from.line, 0); }
      }
      var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines,
                         origin: origin || (paste ? "paste" : cm.state.cutIncoming > recent ? "cut" : "+input")};
      makeChange(cm.doc, changeEvent);
      signalLater(cm, "inputRead", cm, changeEvent);
    }
    if (inserted && !paste)
      { triggerElectric(cm, inserted); }

    ensureCursorVisible(cm);
    if (cm.curOp.updateInput < 2) { cm.curOp.updateInput = updateInput; }
    cm.curOp.typing = true;
    cm.state.pasteIncoming = cm.state.cutIncoming = -1;
  }

  function handlePaste(e, cm) {
    var pasted = e.clipboardData && e.clipboardData.getData("Text");
    if (pasted) {
      e.preventDefault();
      if (!cm.isReadOnly() && !cm.options.disableInput)
        { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }); }
      return true
    }
  }

  function triggerElectric(cm, inserted) {
    // When an 'electric' character is inserted, immediately trigger a reindent
    if (!cm.options.electricChars || !cm.options.smartIndent) { return }
    var sel = cm.doc.sel;

    for (var i = sel.ranges.length - 1; i >= 0; i--) {
      var range = sel.ranges[i];
      if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue }
      var mode = cm.getModeAt(range.head);
      var indented = false;
      if (mode.electricChars) {
        for (var j = 0; j < mode.electricChars.length; j++)
          { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
            indented = indentLine(cm, range.head.line, "smart");
            break
          } }
      } else if (mode.electricInput) {
        if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
          { indented = indentLine(cm, range.head.line, "smart"); }
      }
      if (indented) { signalLater(cm, "electricInput", cm, range.head.line); }
    }
  }

  function copyableRanges(cm) {
    var text = [], ranges = [];
    for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
      var line = cm.doc.sel.ranges[i].head.line;
      var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
      ranges.push(lineRange);
      text.push(cm.getRange(lineRange.anchor, lineRange.head));
    }
    return {text: text, ranges: ranges}
  }

  function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) {
    field.setAttribute("autocorrect", autocorrect ? "" : "off");
    field.setAttribute("autocapitalize", autocapitalize ? "" : "off");
    field.setAttribute("spellcheck", !!spellcheck);
  }

  function hiddenTextarea() {
    var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none");
    var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
    // The textarea is kept positioned near the cursor to prevent the
    // fact that it'll be scrolled into view on input from scrolling
    // our fake cursor out of view. On webkit, when wrap=off, paste is
    // very slow. So make the area wide instead.
    if (webkit) { te.style.width = "1000px"; }
    else { te.setAttribute("wrap", "off"); }
    // If border: 0; -- iOS fails to open keyboard (issue #1287)
    if (ios) { te.style.border = "1px solid black"; }
    disableBrowserMagic(te);
    return div
  }

  // The publicly visible API. Note that methodOp(f) means
  // 'wrap f in an operation, performed on its `this` parameter'.

  // This is not the complete set of editor methods. Most of the
  // methods defined on the Doc type are also injected into
  // CodeMirror.prototype, for backwards compatibility and
  // convenience.

  function addEditorMethods(CodeMirror) {
    var optionHandlers = CodeMirror.optionHandlers;

    var helpers = CodeMirror.helpers = {};

    CodeMirror.prototype = {
      constructor: CodeMirror,
      focus: function(){window.focus(); this.display.input.focus();},

      setOption: function(option, value) {
        var options = this.options, old = options[option];
        if (options[option] == value && option != "mode") { return }
        options[option] = value;
        if (optionHandlers.hasOwnProperty(option))
          { operation(this, optionHandlers[option])(this, value, old); }
        signal(this, "optionChange", this, option);
      },

      getOption: function(option) {return this.options[option]},
      getDoc: function() {return this.doc},

      addKeyMap: function(map, bottom) {
        this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
      },
      removeKeyMap: function(map) {
        var maps = this.state.keyMaps;
        for (var i = 0; i < maps.length; ++i)
          { if (maps[i] == map || maps[i].name == map) {
            maps.splice(i, 1);
            return true
          } }
      },

      addOverlay: methodOp(function(spec, options) {
        var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
        if (mode.startState) { throw new Error("Overlays may not be stateful.") }
        insertSorted(this.state.overlays,
                     {mode: mode, modeSpec: spec, opaque: options && options.opaque,
                      priority: (options && options.priority) || 0},
                     function (overlay) { return overlay.priority; });
        this.state.modeGen++;
        regChange(this);
      }),
      removeOverlay: methodOp(function(spec) {
        var overlays = this.state.overlays;
        for (var i = 0; i < overlays.length; ++i) {
          var cur = overlays[i].modeSpec;
          if (cur == spec || typeof spec == "string" && cur.name == spec) {
            overlays.splice(i, 1);
            this.state.modeGen++;
            regChange(this);
            return
          }
        }
      }),

      indentLine: methodOp(function(n, dir, aggressive) {
        if (typeof dir != "string" && typeof dir != "number") {
          if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev"; }
          else { dir = dir ? "add" : "subtract"; }
        }
        if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); }
      }),
      indentSelection: methodOp(function(how) {
        var ranges = this.doc.sel.ranges, end = -1;
        for (var i = 0; i < ranges.length; i++) {
          var range = ranges[i];
          if (!range.empty()) {
            var from = range.from(), to = range.to();
            var start = Math.max(end, from.line);
            end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
            for (var j = start; j < end; ++j)
              { indentLine(this, j, how); }
            var newRanges = this.doc.sel.ranges;
            if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
              { replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); }
          } else if (range.head.line > end) {
            indentLine(this, range.head.line, how, true);
            end = range.head.line;
            if (i == this.doc.sel.primIndex) { ensureCursorVisible(this); }
          }
        }
      }),

      // Fetch the parser token for a given character. Useful for hacks
      // that want to inspect the mode state (say, for completion).
      getTokenAt: function(pos, precise) {
        return takeToken(this, pos, precise)
      },

      getLineTokens: function(line, precise) {
        return takeToken(this, Pos(line), precise, true)
      },

      getTokenTypeAt: function(pos) {
        pos = clipPos(this.doc, pos);
        var styles = getLineStyles(this, getLine(this.doc, pos.line));
        var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
        var type;
        if (ch == 0) { type = styles[2]; }
        else { for (;;) {
          var mid = (before + after) >> 1;
          if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; }
          else if (styles[mid * 2 + 1] < ch) { before = mid + 1; }
          else { type = styles[mid * 2 + 2]; break }
        } }
        var cut = type ? type.indexOf("overlay ") : -1;
        return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)
      },

      getModeAt: function(pos) {
        var mode = this.doc.mode;
        if (!mode.innerMode) { return mode }
        return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode
      },

      getHelper: function(pos, type) {
        return this.getHelpers(pos, type)[0]
      },

      getHelpers: function(pos, type) {
        var found = [];
        if (!helpers.hasOwnProperty(type)) { return found }
        var help = helpers[type], mode = this.getModeAt(pos);
        if (typeof mode[type] == "string") {
          if (help[mode[type]]) { found.push(help[mode[type]]); }
        } else if (mode[type]) {
          for (var i = 0; i < mode[type].length; i++) {
            var val = help[mode[type][i]];
            if (val) { found.push(val); }
          }
        } else if (mode.helperType && help[mode.helperType]) {
          found.push(help[mode.helperType]);
        } else if (help[mode.name]) {
          found.push(help[mode.name]);
        }
        for (var i$1 = 0; i$1 < help._global.length; i$1++) {
          var cur = help._global[i$1];
          if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
            { found.push(cur.val); }
        }
        return found
      },

      getStateAfter: function(line, precise) {
        var doc = this.doc;
        line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
        return getContextBefore(this, line + 1, precise).state
      },

      cursorCoords: function(start, mode) {
        var pos, range = this.doc.sel.primary();
        if (start == null) { pos = range.head; }
        else if (typeof start == "object") { pos = clipPos(this.doc, start); }
        else { pos = start ? range.from() : range.to(); }
        return cursorCoords(this, pos, mode || "page")
      },

      charCoords: function(pos, mode) {
        return charCoords(this, clipPos(this.doc, pos), mode || "page")
      },

      coordsChar: function(coords, mode) {
        coords = fromCoordSystem(this, coords, mode || "page");
        return coordsChar(this, coords.left, coords.top)
      },

      lineAtHeight: function(height, mode) {
        height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
        return lineAtHeight(this.doc, height + this.display.viewOffset)
      },
      heightAtLine: function(line, mode, includeWidgets) {
        var end = false, lineObj;
        if (typeof line == "number") {
          var last = this.doc.first + this.doc.size - 1;
          if (line < this.doc.first) { line = this.doc.first; }
          else if (line > last) { line = last; end = true; }
          lineObj = getLine(this.doc, line);
        } else {
          lineObj = line;
        }
        return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top +
          (end ? this.doc.height - heightAtLine(lineObj) : 0)
      },

      defaultTextHeight: function() { return textHeight(this.display) },
      defaultCharWidth: function() { return charWidth(this.display) },

      getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},

      addWidget: function(pos, node, scroll, vert, horiz) {
        var display = this.display;
        pos = cursorCoords(this, clipPos(this.doc, pos));
        var top = pos.bottom, left = pos.left;
        node.style.position = "absolute";
        node.setAttribute("cm-ignore-events", "true");
        this.display.input.setUneditable(node);
        display.sizer.appendChild(node);
        if (vert == "over") {
          top = pos.top;
        } else if (vert == "above" || vert == "near") {
          var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
          hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
          // Default to positioning above (if specified and possible); otherwise default to positioning below
          if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
            { top = pos.top - node.offsetHeight; }
          else if (pos.bottom + node.offsetHeight <= vspace)
            { top = pos.bottom; }
          if (left + node.offsetWidth > hspace)
            { left = hspace - node.offsetWidth; }
        }
        node.style.top = top + "px";
        node.style.left = node.style.right = "";
        if (horiz == "right") {
          left = display.sizer.clientWidth - node.offsetWidth;
          node.style.right = "0px";
        } else {
          if (horiz == "left") { left = 0; }
          else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; }
          node.style.left = left + "px";
        }
        if (scroll)
          { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); }
      },

      triggerOnKeyDown: methodOp(onKeyDown),
      triggerOnKeyPress: methodOp(onKeyPress),
      triggerOnKeyUp: onKeyUp,
      triggerOnMouseDown: methodOp(onMouseDown),

      execCommand: function(cmd) {
        if (commands.hasOwnProperty(cmd))
          { return commands[cmd].call(null, this) }
      },

      triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),

      findPosH: function(from, amount, unit, visually) {
        var dir = 1;
        if (amount < 0) { dir = -1; amount = -amount; }
        var cur = clipPos(this.doc, from);
        for (var i = 0; i < amount; ++i) {
          cur = findPosH(this.doc, cur, dir, unit, visually);
          if (cur.hitSide) { break }
        }
        return cur
      },

      moveH: methodOp(function(dir, unit) {
        var this$1 = this;

        this.extendSelectionsBy(function (range) {
          if (this$1.display.shift || this$1.doc.extend || range.empty())
            { return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually) }
          else
            { return dir < 0 ? range.from() : range.to() }
        }, sel_move);
      }),

      deleteH: methodOp(function(dir, unit) {
        var sel = this.doc.sel, doc = this.doc;
        if (sel.somethingSelected())
          { doc.replaceSelection("", null, "+delete"); }
        else
          { deleteNearSelection(this, function (range) {
            var other = findPosH(doc, range.head, dir, unit, false);
            return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}
          }); }
      }),

      findPosV: function(from, amount, unit, goalColumn) {
        var dir = 1, x = goalColumn;
        if (amount < 0) { dir = -1; amount = -amount; }
        var cur = clipPos(this.doc, from);
        for (var i = 0; i < amount; ++i) {
          var coords = cursorCoords(this, cur, "div");
          if (x == null) { x = coords.left; }
          else { coords.left = x; }
          cur = findPosV(this, coords, dir, unit);
          if (cur.hitSide) { break }
        }
        return cur
      },

      moveV: methodOp(function(dir, unit) {
        var this$1 = this;

        var doc = this.doc, goals = [];
        var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected();
        doc.extendSelectionsBy(function (range) {
          if (collapse)
            { return dir < 0 ? range.from() : range.to() }
          var headPos = cursorCoords(this$1, range.head, "div");
          if (range.goalColumn != null) { headPos.left = range.goalColumn; }
          goals.push(headPos.left);
          var pos = findPosV(this$1, headPos, dir, unit);
          if (unit == "page" && range == doc.sel.primary())
            { addToScrollTop(this$1, charCoords(this$1, pos, "div").top - headPos.top); }
          return pos
        }, sel_move);
        if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++)
          { doc.sel.ranges[i].goalColumn = goals[i]; } }
      }),

      // Find the word at the given position (as returned by coordsChar).
      findWordAt: function(pos) {
        var doc = this.doc, line = getLine(doc, pos.line).text;
        var start = pos.ch, end = pos.ch;
        if (line) {
          var helper = this.getHelper(pos, "wordChars");
          if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end; }
          var startChar = line.charAt(start);
          var check = isWordChar(startChar, helper)
            ? function (ch) { return isWordChar(ch, helper); }
            : /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); }
            : function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); };
          while (start > 0 && check(line.charAt(start - 1))) { --start; }
          while (end < line.length && check(line.charAt(end))) { ++end; }
        }
        return new Range(Pos(pos.line, start), Pos(pos.line, end))
      },

      toggleOverwrite: function(value) {
        if (value != null && value == this.state.overwrite) { return }
        if (this.state.overwrite = !this.state.overwrite)
          { addClass(this.display.cursorDiv, "CodeMirror-overwrite"); }
        else
          { rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); }

        signal(this, "overwriteToggle", this, this.state.overwrite);
      },
      hasFocus: function() { return this.display.input.getField() == activeElt() },
      isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },

      scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }),
      getScrollInfo: function() {
        var scroller = this.display.scroller;
        return {left: scroller.scrollLeft, top: scroller.scrollTop,
                height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
                width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
                clientHeight: displayHeight(this), clientWidth: displayWidth(this)}
      },

      scrollIntoView: methodOp(function(range, margin) {
        if (range == null) {
          range = {from: this.doc.sel.primary().head, to: null};
          if (margin == null) { margin = this.options.cursorScrollMargin; }
        } else if (typeof range == "number") {
          range = {from: Pos(range, 0), to: null};
        } else if (range.from == null) {
          range = {from: range, to: null};
        }
        if (!range.to) { range.to = range.from; }
        range.margin = margin || 0;

        if (range.from.line != null) {
          scrollToRange(this, range);
        } else {
          scrollToCoordsRange(this, range.from, range.to, range.margin);
        }
      }),

      setSize: methodOp(function(width, height) {
        var this$1 = this;

        var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; };
        if (width != null) { this.display.wrapper.style.width = interpret(width); }
        if (height != null) { this.display.wrapper.style.height = interpret(height); }
        if (this.options.lineWrapping) { clearLineMeasurementCache(this); }
        var lineNo = this.display.viewFrom;
        this.doc.iter(lineNo, this.display.viewTo, function (line) {
          if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)
            { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo, "widget"); break } } }
          ++lineNo;
        });
        this.curOp.forceUpdate = true;
        signal(this, "refresh", this);
      }),

      operation: function(f){return runInOp(this, f)},
      startOperation: function(){return startOperation(this)},
      endOperation: function(){return endOperation(this)},

      refresh: methodOp(function() {
        var oldHeight = this.display.cachedTextHeight;
        regChange(this);
        this.curOp.forceUpdate = true;
        clearCaches(this);
        scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop);
        updateGutterSpace(this.display);
        if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5 || this.options.lineWrapping)
          { estimateLineHeights(this); }
        signal(this, "refresh", this);
      }),

      swapDoc: methodOp(function(doc) {
        var old = this.doc;
        old.cm = null;
        // Cancel the current text selection if any (#5821)
        if (this.state.selectingText) { this.state.selectingText(); }
        attachDoc(this, doc);
        clearCaches(this);
        this.display.input.reset();
        scrollToCoords(this, doc.scrollLeft, doc.scrollTop);
        this.curOp.forceScroll = true;
        signalLater(this, "swapDoc", this, old);
        return old
      }),

      phrase: function(phraseText) {
        var phrases = this.options.phrases;
        return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText
      },

      getInputField: function(){return this.display.input.getField()},
      getWrapperElement: function(){return this.display.wrapper},
      getScrollerElement: function(){return this.display.scroller},
      getGutterElement: function(){return this.display.gutters}
    };
    eventMixin(CodeMirror);

    CodeMirror.registerHelper = function(type, name, value) {
      if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; }
      helpers[type][name] = value;
    };
    CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
      CodeMirror.registerHelper(type, name, value);
      helpers[type]._global.push({pred: predicate, val: value});
    };
  }

  // Used for horizontal relative motion. Dir is -1 or 1 (left or
  // right), unit can be "char", "column" (like char, but doesn't
  // cross line boundaries), "word" (across next word), or "group" (to
  // the start of next group of word or non-word-non-whitespace
  // chars). The visually param controls whether, in right-to-left
  // text, direction 1 means to move towards the next index in the
  // string, or towards the character to the right of the current
  // position. The resulting position will have a hitSide=true
  // property if it reached the end of the document.
  function findPosH(doc, pos, dir, unit, visually) {
    var oldPos = pos;
    var origDir = dir;
    var lineObj = getLine(doc, pos.line);
    var lineDir = visually && doc.direction == "rtl" ? -dir : dir;
    function findNextLine() {
      var l = pos.line + lineDir;
      if (l < doc.first || l >= doc.first + doc.size) { return false }
      pos = new Pos(l, pos.ch, pos.sticky);
      return lineObj = getLine(doc, l)
    }
    function moveOnce(boundToLine) {
      var next;
      if (visually) {
        next = moveVisually(doc.cm, lineObj, pos, dir);
      } else {
        next = moveLogically(lineObj, pos, dir);
      }
      if (next == null) {
        if (!boundToLine && findNextLine())
          { pos = endOfLine(visually, doc.cm, lineObj, pos.line, lineDir); }
        else
          { return false }
      } else {
        pos = next;
      }
      return true
    }

    if (unit == "char") {
      moveOnce();
    } else if (unit == "column") {
      moveOnce(true);
    } else if (unit == "word" || unit == "group") {
      var sawType = null, group = unit == "group";
      var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
      for (var first = true;; first = false) {
        if (dir < 0 && !moveOnce(!first)) { break }
        var cur = lineObj.text.charAt(pos.ch) || "\n";
        var type = isWordChar(cur, helper) ? "w"
          : group && cur == "\n" ? "n"
          : !group || /\s/.test(cur) ? null
          : "p";
        if (group && !first && !type) { type = "s"; }
        if (sawType && sawType != type) {
          if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after";}
          break
        }

        if (type) { sawType = type; }
        if (dir > 0 && !moveOnce(!first)) { break }
      }
    }
    var result = skipAtomic(doc, pos, oldPos, origDir, true);
    if (equalCursorPos(oldPos, result)) { result.hitSide = true; }
    return result
  }

  // For relative vertical movement. Dir may be -1 or 1. Unit can be
  // "page" or "line". The resulting position will have a hitSide=true
  // property if it reached the end of the document.
  function findPosV(cm, pos, dir, unit) {
    var doc = cm.doc, x = pos.left, y;
    if (unit == "page") {
      var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
      var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3);
      y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount;

    } else if (unit == "line") {
      y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
    }
    var target;
    for (;;) {
      target = coordsChar(cm, x, y);
      if (!target.outside) { break }
      if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }
      y += dir * 5;
    }
    return target
  }

  // CONTENTEDITABLE INPUT STYLE

  var ContentEditableInput = function(cm) {
    this.cm = cm;
    this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;
    this.polling = new Delayed();
    this.composing = null;
    this.gracePeriod = false;
    this.readDOMTimeout = null;
  };

  ContentEditableInput.prototype.init = function (display) {
      var this$1 = this;

    var input = this, cm = input.cm;
    var div = input.div = display.lineDiv;
    disableBrowserMagic(div, cm.options.spellcheck, cm.options.autocorrect, cm.options.autocapitalize);

    function belongsToInput(e) {
      for (var t = e.target; t; t = t.parentNode) {
        if (t == div) { return true }
        if (/\bCodeMirror-(?:line)?widget\b/.test(t.className)) { break }
      }
      return false
    }

    on(div, "paste", function (e) {
      if (!belongsToInput(e) || signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
      // IE doesn't fire input events, so we schedule a read for the pasted content in this way
      if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); }
    });

    on(div, "compositionstart", function (e) {
      this$1.composing = {data: e.data, done: false};
    });
    on(div, "compositionupdate", function (e) {
      if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; }
    });
    on(div, "compositionend", function (e) {
      if (this$1.composing) {
        if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); }
        this$1.composing.done = true;
      }
    });

    on(div, "touchstart", function () { return input.forceCompositionEnd(); });

    on(div, "input", function () {
      if (!this$1.composing) { this$1.readFromDOMSoon(); }
    });

    function onCopyCut(e) {
      if (!belongsToInput(e) || signalDOMEvent(cm, e)) { return }
      if (cm.somethingSelected()) {
        setLastCopied({lineWise: false, text: cm.getSelections()});
        if (e.type == "cut") { cm.replaceSelection("", null, "cut"); }
      } else if (!cm.options.lineWiseCopyCut) {
        return
      } else {
        var ranges = copyableRanges(cm);
        setLastCopied({lineWise: true, text: ranges.text});
        if (e.type == "cut") {
          cm.operation(function () {
            cm.setSelections(ranges.ranges, 0, sel_dontScroll);
            cm.replaceSelection("", null, "cut");
          });
        }
      }
      if (e.clipboardData) {
        e.clipboardData.clearData();
        var content = lastCopied.text.join("\n");
        // iOS exposes the clipboard API, but seems to discard content inserted into it
        e.clipboardData.setData("Text", content);
        if (e.clipboardData.getData("Text") == content) {
          e.preventDefault();
          return
        }
      }
      // Old-fashioned briefly-focus-a-textarea hack
      var kludge = hiddenTextarea(), te = kludge.firstChild;
      cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
      te.value = lastCopied.text.join("\n");
      var hadFocus = document.activeElement;
      selectInput(te);
      setTimeout(function () {
        cm.display.lineSpace.removeChild(kludge);
        hadFocus.focus();
        if (hadFocus == div) { input.showPrimarySelection(); }
      }, 50);
    }
    on(div, "copy", onCopyCut);
    on(div, "cut", onCopyCut);
  };

  ContentEditableInput.prototype.screenReaderLabelChanged = function (label) {
    // Label for screenreaders, accessibility
    if(label) {
      this.div.setAttribute('aria-label', label);
    } else {
      this.div.removeAttribute('aria-label');
    }
  };

  ContentEditableInput.prototype.prepareSelection = function () {
    var result = prepareSelection(this.cm, false);
    result.focus = document.activeElement == this.div;
    return result
  };

  ContentEditableInput.prototype.showSelection = function (info, takeFocus) {
    if (!info || !this.cm.display.view.length) { return }
    if (info.focus || takeFocus) { this.showPrimarySelection(); }
    this.showMultipleSelections(info);
  };

  ContentEditableInput.prototype.getSelection = function () {
    return this.cm.display.wrapper.ownerDocument.getSelection()
  };

  ContentEditableInput.prototype.showPrimarySelection = function () {
    var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary();
    var from = prim.from(), to = prim.to();

    if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) {
      sel.removeAllRanges();
      return
    }

    var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
    var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset);
    if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
        cmp(minPos(curAnchor, curFocus), from) == 0 &&
        cmp(maxPos(curAnchor, curFocus), to) == 0)
      { return }

    var view = cm.display.view;
    var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) ||
        {node: view[0].measure.map[2], offset: 0};
    var end = to.line < cm.display.viewTo && posToDOM(cm, to);
    if (!end) {
      var measure = view[view.length - 1].measure;
      var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
      end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};
    }

    if (!start || !end) {
      sel.removeAllRanges();
      return
    }

    var old = sel.rangeCount && sel.getRangeAt(0), rng;
    try { rng = range(start.node, start.offset, end.offset, end.node); }
    catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
    if (rng) {
      if (!gecko && cm.state.focused) {
        sel.collapse(start.node, start.offset);
        if (!rng.collapsed) {
          sel.removeAllRanges();
          sel.addRange(rng);
        }
      } else {
        sel.removeAllRanges();
        sel.addRange(rng);
      }
      if (old && sel.anchorNode == null) { sel.addRange(old); }
      else if (gecko) { this.startGracePeriod(); }
    }
    this.rememberSelection();
  };

  ContentEditableInput.prototype.startGracePeriod = function () {
      var this$1 = this;

    clearTimeout(this.gracePeriod);
    this.gracePeriod = setTimeout(function () {
      this$1.gracePeriod = false;
      if (this$1.selectionChanged())
        { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); }
    }, 20);
  };

  ContentEditableInput.prototype.showMultipleSelections = function (info) {
    removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
    removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
  };

  ContentEditableInput.prototype.rememberSelection = function () {
    var sel = this.getSelection();
    this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;
    this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;
  };

  ContentEditableInput.prototype.selectionInEditor = function () {
    var sel = this.getSelection();
    if (!sel.rangeCount) { return false }
    var node = sel.getRangeAt(0).commonAncestorContainer;
    return contains(this.div, node)
  };

  ContentEditableInput.prototype.focus = function () {
    if (this.cm.options.readOnly != "nocursor") {
      if (!this.selectionInEditor() || document.activeElement != this.div)
        { this.showSelection(this.prepareSelection(), true); }
      this.div.focus();
    }
  };
  ContentEditableInput.prototype.blur = function () { this.div.blur(); };
  ContentEditableInput.prototype.getField = function () { return this.div };

  ContentEditableInput.prototype.supportsTouch = function () { return true };

  ContentEditableInput.prototype.receivedFocus = function () {
    var input = this;
    if (this.selectionInEditor())
      { this.pollSelection(); }
    else
      { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); }

    function poll() {
      if (input.cm.state.focused) {
        input.pollSelection();
        input.polling.set(input.cm.options.pollInterval, poll);
      }
    }
    this.polling.set(this.cm.options.pollInterval, poll);
  };

  ContentEditableInput.prototype.selectionChanged = function () {
    var sel = this.getSelection();
    return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
      sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset
  };

  ContentEditableInput.prototype.pollSelection = function () {
    if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return }
    var sel = this.getSelection(), cm = this.cm;
    // On Android Chrome (version 56, at least), backspacing into an
    // uneditable block element will put the cursor in that element,
    // and then, because it's not editable, hide the virtual keyboard.
    // Because Android doesn't allow us to actually detect backspace
    // presses in a sane way, this code checks for when that happens
    // and simulates a backspace press in this case.
    if (android && chrome && this.cm.display.gutterSpecs.length && isInGutter(sel.anchorNode)) {
      this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs});
      this.blur();
      this.focus();
      return
    }
    if (this.composing) { return }
    this.rememberSelection();
    var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
    var head = domToPos(cm, sel.focusNode, sel.focusOffset);
    if (anchor && head) { runInOp(cm, function () {
      setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);
      if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; }
    }); }
  };

  ContentEditableInput.prototype.pollContent = function () {
    if (this.readDOMTimeout != null) {
      clearTimeout(this.readDOMTimeout);
      this.readDOMTimeout = null;
    }

    var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();
    var from = sel.from(), to = sel.to();
    if (from.ch == 0 && from.line > cm.firstLine())
      { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); }
    if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())
      { to = Pos(to.line + 1, 0); }
    if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false }

    var fromIndex, fromLine, fromNode;
    if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
      fromLine = lineNo(display.view[0].line);
      fromNode = display.view[0].node;
    } else {
      fromLine = lineNo(display.view[fromIndex].line);
      fromNode = display.view[fromIndex - 1].node.nextSibling;
    }
    var toIndex = findViewIndex(cm, to.line);
    var toLine, toNode;
    if (toIndex == display.view.length - 1) {
      toLine = display.viewTo - 1;
      toNode = display.lineDiv.lastChild;
    } else {
      toLine = lineNo(display.view[toIndex + 1].line) - 1;
      toNode = display.view[toIndex + 1].node.previousSibling;
    }

    if (!fromNode) { return false }
    var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));
    var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));
    while (newText.length > 1 && oldText.length > 1) {
      if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }
      else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }
      else { break }
    }

    var cutFront = 0, cutEnd = 0;
    var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);
    while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
      { ++cutFront; }
    var newBot = lst(newText), oldBot = lst(oldText);
    var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
                             oldBot.length - (oldText.length == 1 ? cutFront : 0));
    while (cutEnd < maxCutEnd &&
           newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
      { ++cutEnd; }
    // Try to move start of change to start of selection if ambiguous
    if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {
      while (cutFront && cutFront > from.ch &&
             newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {
        cutFront--;
        cutEnd++;
      }
    }

    newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, "");
    newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, "");

    var chFrom = Pos(fromLine, cutFront);
    var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);
    if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
      replaceRange(cm.doc, newText, chFrom, chTo, "+input");
      return true
    }
  };

  ContentEditableInput.prototype.ensurePolled = function () {
    this.forceCompositionEnd();
  };
  ContentEditableInput.prototype.reset = function () {
    this.forceCompositionEnd();
  };
  ContentEditableInput.prototype.forceCompositionEnd = function () {
    if (!this.composing) { return }
    clearTimeout(this.readDOMTimeout);
    this.composing = null;
    this.updateFromDOM();
    this.div.blur();
    this.div.focus();
  };
  ContentEditableInput.prototype.readFromDOMSoon = function () {
      var this$1 = this;

    if (this.readDOMTimeout != null) { return }
    this.readDOMTimeout = setTimeout(function () {
      this$1.readDOMTimeout = null;
      if (this$1.composing) {
        if (this$1.composing.done) { this$1.composing = null; }
        else { return }
      }
      this$1.updateFromDOM();
    }, 80);
  };

  ContentEditableInput.prototype.updateFromDOM = function () {
      var this$1 = this;

    if (this.cm.isReadOnly() || !this.pollContent())
      { runInOp(this.cm, function () { return regChange(this$1.cm); }); }
  };

  ContentEditableInput.prototype.setUneditable = function (node) {
    node.contentEditable = "false";
  };

  ContentEditableInput.prototype.onKeyPress = function (e) {
    if (e.charCode == 0 || this.composing) { return }
    e.preventDefault();
    if (!this.cm.isReadOnly())
      { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); }
  };

  ContentEditableInput.prototype.readOnlyChanged = function (val) {
    this.div.contentEditable = String(val != "nocursor");
  };

  ContentEditableInput.prototype.onContextMenu = function () {};
  ContentEditableInput.prototype.resetPosition = function () {};

  ContentEditableInput.prototype.needsContentAttribute = true;

  function posToDOM(cm, pos) {
    var view = findViewForLine(cm, pos.line);
    if (!view || view.hidden) { return null }
    var line = getLine(cm.doc, pos.line);
    var info = mapFromLineView(view, line, pos.line);

    var order = getOrder(line, cm.doc.direction), side = "left";
    if (order) {
      var partPos = getBidiPartAt(order, pos.ch);
      side = partPos % 2 ? "right" : "left";
    }
    var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
    result.offset = result.collapse == "right" ? result.end : result.start;
    return result
  }

  function isInGutter(node) {
    for (var scan = node; scan; scan = scan.parentNode)
      { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } }
    return false
  }

  function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }

  function domTextBetween(cm, from, to, fromLine, toLine) {
    var text = "", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false;
    function recognizeMarker(id) { return function (marker) { return marker.id == id; } }
    function close() {
      if (closing) {
        text += lineSep;
        if (extraLinebreak) { text += lineSep; }
        closing = extraLinebreak = false;
      }
    }
    function addText(str) {
      if (str) {
        close();
        text += str;
      }
    }
    function walk(node) {
      if (node.nodeType == 1) {
        var cmText = node.getAttribute("cm-text");
        if (cmText) {
          addText(cmText);
          return
        }
        var markerID = node.getAttribute("cm-marker"), range;
        if (markerID) {
          var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
          if (found.length && (range = found[0].find(0)))
            { addText(getBetween(cm.doc, range.from, range.to).join(lineSep)); }
          return
        }
        if (node.getAttribute("contenteditable") == "false") { return }
        var isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName);
        if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) { return }

        if (isBlock) { close(); }
        for (var i = 0; i < node.childNodes.length; i++)
          { walk(node.childNodes[i]); }

        if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; }
        if (isBlock) { closing = true; }
      } else if (node.nodeType == 3) {
        addText(node.nodeValue.replace(/\u200b/g, "").replace(/\u00a0/g, " "));
      }
    }
    for (;;) {
      walk(from);
      if (from == to) { break }
      from = from.nextSibling;
      extraLinebreak = false;
    }
    return text
  }

  function domToPos(cm, node, offset) {
    var lineNode;
    if (node == cm.display.lineDiv) {
      lineNode = cm.display.lineDiv.childNodes[offset];
      if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) }
      node = null; offset = 0;
    } else {
      for (lineNode = node;; lineNode = lineNode.parentNode) {
        if (!lineNode || lineNode == cm.display.lineDiv) { return null }
        if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break }
      }
    }
    for (var i = 0; i < cm.display.view.length; i++) {
      var lineView = cm.display.view[i];
      if (lineView.node == lineNode)
        { return locateNodeInLineView(lineView, node, offset) }
    }
  }

  function locateNodeInLineView(lineView, node, offset) {
    var wrapper = lineView.text.firstChild, bad = false;
    if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) }
    if (node == wrapper) {
      bad = true;
      node = wrapper.childNodes[offset];
      offset = 0;
      if (!node) {
        var line = lineView.rest ? lst(lineView.rest) : lineView.line;
        return badPos(Pos(lineNo(line), line.text.length), bad)
      }
    }

    var textNode = node.nodeType == 3 ? node : null, topNode = node;
    if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
      textNode = node.firstChild;
      if (offset) { offset = textNode.nodeValue.length; }
    }
    while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; }
    var measure = lineView.measure, maps = measure.maps;

    function find(textNode, topNode, offset) {
      for (var i = -1; i < (maps ? maps.length : 0); i++) {
        var map = i < 0 ? measure.map : maps[i];
        for (var j = 0; j < map.length; j += 3) {
          var curNode = map[j + 2];
          if (curNode == textNode || curNode == topNode) {
            var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
            var ch = map[j] + offset;
            if (offset < 0 || curNode != textNode) { ch = map[j + (offset ? 1 : 0)]; }
            return Pos(line, ch)
          }
        }
      }
    }
    var found = find(textNode, topNode, offset);
    if (found) { return badPos(found, bad) }

    // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
    for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
      found = find(after, after.firstChild, 0);
      if (found)
        { return badPos(Pos(found.line, found.ch - dist), bad) }
      else
        { dist += after.textContent.length; }
    }
    for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {
      found = find(before, before.firstChild, -1);
      if (found)
        { return badPos(Pos(found.line, found.ch + dist$1), bad) }
      else
        { dist$1 += before.textContent.length; }
    }
  }

  // TEXTAREA INPUT STYLE

  var TextareaInput = function(cm) {
    this.cm = cm;
    // See input.poll and input.reset
    this.prevInput = "";

    // Flag that indicates whether we expect input to appear real soon
    // now (after some event like 'keypress' or 'input') and are
    // polling intensively.
    this.pollingFast = false;
    // Self-resetting timeout for the poller
    this.polling = new Delayed();
    // Used to work around IE issue with selection being forgotten when focus moves away from textarea
    this.hasSelection = false;
    this.composing = null;
  };

  TextareaInput.prototype.init = function (display) {
      var this$1 = this;

    var input = this, cm = this.cm;
    this.createField(display);
    var te = this.textarea;

    display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild);

    // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
    if (ios) { te.style.width = "0px"; }

    on(te, "input", function () {
      if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; }
      input.poll();
    });

    on(te, "paste", function (e) {
      if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }

      cm.state.pasteIncoming = +new Date;
      input.fastPoll();
    });

    function prepareCopyCut(e) {
      if (signalDOMEvent(cm, e)) { return }
      if (cm.somethingSelected()) {
        setLastCopied({lineWise: false, text: cm.getSelections()});
      } else if (!cm.options.lineWiseCopyCut) {
        return
      } else {
        var ranges = copyableRanges(cm);
        setLastCopied({lineWise: true, text: ranges.text});
        if (e.type == "cut") {
          cm.setSelections(ranges.ranges, null, sel_dontScroll);
        } else {
          input.prevInput = "";
          te.value = ranges.text.join("\n");
          selectInput(te);
        }
      }
      if (e.type == "cut") { cm.state.cutIncoming = +new Date; }
    }
    on(te, "cut", prepareCopyCut);
    on(te, "copy", prepareCopyCut);

    on(display.scroller, "paste", function (e) {
      if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }
      if (!te.dispatchEvent) {
        cm.state.pasteIncoming = +new Date;
        input.focus();
        return
      }

      // Pass the `paste` event to the textarea so it's handled by its event listener.
      var event = new Event("paste");
      event.clipboardData = e.clipboardData;
      te.dispatchEvent(event);
    });

    // Prevent normal selection in the editor (we handle our own)
    on(display.lineSpace, "selectstart", function (e) {
      if (!eventInWidget(display, e)) { e_preventDefault(e); }
    });

    on(te, "compositionstart", function () {
      var start = cm.getCursor("from");
      if (input.composing) { input.composing.range.clear(); }
      input.composing = {
        start: start,
        range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
      };
    });
    on(te, "compositionend", function () {
      if (input.composing) {
        input.poll();
        input.composing.range.clear();
        input.composing = null;
      }
    });
  };

  TextareaInput.prototype.createField = function (_display) {
    // Wraps and hides input textarea
    this.wrapper = hiddenTextarea();
    // The semihidden textarea that is focused when the editor is
    // focused, and receives input.
    this.textarea = this.wrapper.firstChild;
  };

  TextareaInput.prototype.screenReaderLabelChanged = function (label) {
    // Label for screenreaders, accessibility
    if(label) {
      this.textarea.setAttribute('aria-label', label);
    } else {
      this.textarea.removeAttribute('aria-label');
    }
  };

  TextareaInput.prototype.prepareSelection = function () {
    // Redraw the selection and/or cursor
    var cm = this.cm, display = cm.display, doc = cm.doc;
    var result = prepareSelection(cm);

    // Move the hidden textarea near the cursor to prevent scrolling artifacts
    if (cm.options.moveInputWithCursor) {
      var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
      var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
      result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
                                          headPos.top + lineOff.top - wrapOff.top));
      result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
                                           headPos.left + lineOff.left - wrapOff.left));
    }

    return result
  };

  TextareaInput.prototype.showSelection = function (drawn) {
    var cm = this.cm, display = cm.display;
    removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
    removeChildrenAndAdd(display.selectionDiv, drawn.selection);
    if (drawn.teTop != null) {
      this.wrapper.style.top = drawn.teTop + "px";
      this.wrapper.style.left = drawn.teLeft + "px";
    }
  };

  // Reset the input to correspond to the selection (or to be empty,
  // when not typing and nothing is selected)
  TextareaInput.prototype.reset = function (typing) {
    if (this.contextMenuPending || this.composing) { return }
    var cm = this.cm;
    if (cm.somethingSelected()) {
      this.prevInput = "";
      var content = cm.getSelection();
      this.textarea.value = content;
      if (cm.state.focused) { selectInput(this.textarea); }
      if (ie && ie_version >= 9) { this.hasSelection = content; }
    } else if (!typing) {
      this.prevInput = this.textarea.value = "";
      if (ie && ie_version >= 9) { this.hasSelection = null; }
    }
  };

  TextareaInput.prototype.getField = function () { return this.textarea };

  TextareaInput.prototype.supportsTouch = function () { return false };

  TextareaInput.prototype.focus = function () {
    if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
      try { this.textarea.focus(); }
      catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
    }
  };

  TextareaInput.prototype.blur = function () { this.textarea.blur(); };

  TextareaInput.prototype.resetPosition = function () {
    this.wrapper.style.top = this.wrapper.style.left = 0;
  };

  TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); };

  // Poll for input changes, using the normal rate of polling. This
  // runs as long as the editor is focused.
  TextareaInput.prototype.slowPoll = function () {
      var this$1 = this;

    if (this.pollingFast) { return }
    this.polling.set(this.cm.options.pollInterval, function () {
      this$1.poll();
      if (this$1.cm.state.focused) { this$1.slowPoll(); }
    });
  };

  // When an event has just come in that is likely to add or change
  // something in the input textarea, we poll faster, to ensure that
  // the change appears on the screen quickly.
  TextareaInput.prototype.fastPoll = function () {
    var missed = false, input = this;
    input.pollingFast = true;
    function p() {
      var changed = input.poll();
      if (!changed && !missed) {missed = true; input.polling.set(60, p);}
      else {input.pollingFast = false; input.slowPoll();}
    }
    input.polling.set(20, p);
  };

  // Read input from the textarea, and update the document to match.
  // When something is selected, it is present in the textarea, and
  // selected (unless it is huge, in which case a placeholder is
  // used). When nothing is selected, the cursor sits after previously
  // seen text (can be empty), which is stored in prevInput (we must
  // not reset the textarea when typing, because that breaks IME).
  TextareaInput.prototype.poll = function () {
      var this$1 = this;

    var cm = this.cm, input = this.textarea, prevInput = this.prevInput;
    // Since this is called a *lot*, try to bail out as cheaply as
    // possible when it is clear that nothing happened. hasSelection
    // will be the case when there is a lot of text in the textarea,
    // in which case reading its value would be expensive.
    if (this.contextMenuPending || !cm.state.focused ||
        (hasSelection(input) && !prevInput && !this.composing) ||
        cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)
      { return false }

    var text = input.value;
    // If nothing changed, bail.
    if (text == prevInput && !cm.somethingSelected()) { return false }
    // Work around nonsensical selection resetting in IE9/10, and
    // inexplicable appearance of private area unicode characters on
    // some key combos in Mac (#2689).
    if (ie && ie_version >= 9 && this.hasSelection === text ||
        mac && /[\uf700-\uf7ff]/.test(text)) {
      cm.display.input.reset();
      return false
    }

    if (cm.doc.sel == cm.display.selForContextMenu) {
      var first = text.charCodeAt(0);
      if (first == 0x200b && !prevInput) { prevInput = "\u200b"; }
      if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") }
    }
    // Find the part of the input that is actually new
    var same = 0, l = Math.min(prevInput.length, text.length);
    while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; }

    runInOp(cm, function () {
      applyTextInput(cm, text.slice(same), prevInput.length - same,
                     null, this$1.composing ? "*compose" : null);

      // Don't leave long text in the textarea, since it makes further polling slow
      if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = ""; }
      else { this$1.prevInput = text; }

      if (this$1.composing) {
        this$1.composing.range.clear();
        this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"),
                                           {className: "CodeMirror-composing"});
      }
    });
    return true
  };

  TextareaInput.prototype.ensurePolled = function () {
    if (this.pollingFast && this.poll()) { this.pollingFast = false; }
  };

  TextareaInput.prototype.onKeyPress = function () {
    if (ie && ie_version >= 9) { this.hasSelection = null; }
    this.fastPoll();
  };

  TextareaInput.prototype.onContextMenu = function (e) {
    var input = this, cm = input.cm, display = cm.display, te = input.textarea;
    if (input.contextMenuPending) { input.contextMenuPending(); }
    var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
    if (!pos || presto) { return } // Opera is difficult.

    // Reset the current text selection only if the click is done outside of the selection
    // and 'resetSelectionOnContextMenu' option is true.
    var reset = cm.options.resetSelectionOnContextMenu;
    if (reset && cm.doc.sel.contains(pos) == -1)
      { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); }

    var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText;
    var wrapperBox = input.wrapper.offsetParent.getBoundingClientRect();
    input.wrapper.style.cssText = "position: static";
    te.style.cssText = "position: absolute; width: 30px; height: 30px;\n      top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n      z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
    var oldScrollY;
    if (webkit) { oldScrollY = window.scrollY; } // Work around Chrome issue (#2712)
    display.input.focus();
    if (webkit) { window.scrollTo(null, oldScrollY); }
    display.input.reset();
    // Adds "Select all" to context menu in FF
    if (!cm.somethingSelected()) { te.value = input.prevInput = " "; }
    input.contextMenuPending = rehide;
    display.selForContextMenu = cm.doc.sel;
    clearTimeout(display.detectingSelectAll);

    // Select-all will be greyed out if there's nothing to select, so
    // this adds a zero-width space so that we can later check whether
    // it got selected.
    function prepareSelectAllHack() {
      if (te.selectionStart != null) {
        var selected = cm.somethingSelected();
        var extval = "\u200b" + (selected ? te.value : "");
        te.value = "\u21da"; // Used to catch context-menu undo
        te.value = extval;
        input.prevInput = selected ? "" : "\u200b";
        te.selectionStart = 1; te.selectionEnd = extval.length;
        // Re-set this, in case some other handler touched the
        // selection in the meantime.
        display.selForContextMenu = cm.doc.sel;
      }
    }
    function rehide() {
      if (input.contextMenuPending != rehide) { return }
      input.contextMenuPending = false;
      input.wrapper.style.cssText = oldWrapperCSS;
      te.style.cssText = oldCSS;
      if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); }

      // Try to detect the user choosing select-all
      if (te.selectionStart != null) {
        if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); }
        var i = 0, poll = function () {
          if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
              te.selectionEnd > 0 && input.prevInput == "\u200b") {
            operation(cm, selectAll)(cm);
          } else if (i++ < 10) {
            display.detectingSelectAll = setTimeout(poll, 500);
          } else {
            display.selForContextMenu = null;
            display.input.reset();
          }
        };
        display.detectingSelectAll = setTimeout(poll, 200);
      }
    }

    if (ie && ie_version >= 9) { prepareSelectAllHack(); }
    if (captureRightClick) {
      e_stop(e);
      var mouseup = function () {
        off(window, "mouseup", mouseup);
        setTimeout(rehide, 20);
      };
      on(window, "mouseup", mouseup);
    } else {
      setTimeout(rehide, 50);
    }
  };

  TextareaInput.prototype.readOnlyChanged = function (val) {
    if (!val) { this.reset(); }
    this.textarea.disabled = val == "nocursor";
  };

  TextareaInput.prototype.setUneditable = function () {};

  TextareaInput.prototype.needsContentAttribute = false;

  function fromTextArea(textarea, options) {
    options = options ? copyObj(options) : {};
    options.value = textarea.value;
    if (!options.tabindex && textarea.tabIndex)
      { options.tabindex = textarea.tabIndex; }
    if (!options.placeholder && textarea.placeholder)
      { options.placeholder = textarea.placeholder; }
    // Set autofocus to true if this textarea is focused, or if it has
    // autofocus and no other element is focused.
    if (options.autofocus == null) {
      var hasFocus = activeElt();
      options.autofocus = hasFocus == textarea ||
        textarea.getAttribute("autofocus") != null && hasFocus == document.body;
    }

    function save() {textarea.value = cm.getValue();}

    var realSubmit;
    if (textarea.form) {
      on(textarea.form, "submit", save);
      // Deplorable hack to make the submit method do the right thing.
      if (!options.leaveSubmitMethodAlone) {
        var form = textarea.form;
        realSubmit = form.submit;
        try {
          var wrappedSubmit = form.submit = function () {
            save();
            form.submit = realSubmit;
            form.submit();
            form.submit = wrappedSubmit;
          };
        } catch(e) {}
      }
    }

    options.finishInit = function (cm) {
      cm.save = save;
      cm.getTextArea = function () { return textarea; };
      cm.toTextArea = function () {
        cm.toTextArea = isNaN; // Prevent this from being ran twice
        save();
        textarea.parentNode.removeChild(cm.getWrapperElement());
        textarea.style.display = "";
        if (textarea.form) {
          off(textarea.form, "submit", save);
          if (!options.leaveSubmitMethodAlone && typeof textarea.form.submit == "function")
            { textarea.form.submit = realSubmit; }
        }
      };
    };

    textarea.style.display = "none";
    var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },
      options);
    return cm
  }

  function addLegacyProps(CodeMirror) {
    CodeMirror.off = off;
    CodeMirror.on = on;
    CodeMirror.wheelEventPixels = wheelEventPixels;
    CodeMirror.Doc = Doc;
    CodeMirror.splitLines = splitLinesAuto;
    CodeMirror.countColumn = countColumn;
    CodeMirror.findColumn = findColumn;
    CodeMirror.isWordChar = isWordCharBasic;
    CodeMirror.Pass = Pass;
    CodeMirror.signal = signal;
    CodeMirror.Line = Line;
    CodeMirror.changeEnd = changeEnd;
    CodeMirror.scrollbarModel = scrollbarModel;
    CodeMirror.Pos = Pos;
    CodeMirror.cmpPos = cmp;
    CodeMirror.modes = modes;
    CodeMirror.mimeModes = mimeModes;
    CodeMirror.resolveMode = resolveMode;
    CodeMirror.getMode = getMode;
    CodeMirror.modeExtensions = modeExtensions;
    CodeMirror.extendMode = extendMode;
    CodeMirror.copyState = copyState;
    CodeMirror.startState = startState;
    CodeMirror.innerMode = innerMode;
    CodeMirror.commands = commands;
    CodeMirror.keyMap = keyMap;
    CodeMirror.keyName = keyName;
    CodeMirror.isModifierKey = isModifierKey;
    CodeMirror.lookupKey = lookupKey;
    CodeMirror.normalizeKeyMap = normalizeKeyMap;
    CodeMirror.StringStream = StringStream;
    CodeMirror.SharedTextMarker = SharedTextMarker;
    CodeMirror.TextMarker = TextMarker;
    CodeMirror.LineWidget = LineWidget;
    CodeMirror.e_preventDefault = e_preventDefault;
    CodeMirror.e_stopPropagation = e_stopPropagation;
    CodeMirror.e_stop = e_stop;
    CodeMirror.addClass = addClass;
    CodeMirror.contains = contains;
    CodeMirror.rmClass = rmClass;
    CodeMirror.keyNames = keyNames;
  }

  // EDITOR CONSTRUCTOR

  defineOptions(CodeMirror);

  addEditorMethods(CodeMirror);

  // Set up methods on CodeMirror's prototype to redirect to the editor's document.
  var dontDelegate = "iter insert remove copy getEditor constructor".split(" ");
  for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
    { CodeMirror.prototype[prop] = (function(method) {
      return function() {return method.apply(this.doc, arguments)}
    })(Doc.prototype[prop]); } }

  eventMixin(Doc);
  CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput};

  // Extra arguments are stored as the mode's dependencies, which is
  // used by (legacy) mechanisms like loadmode.js to automatically
  // load a mode. (Preferred mechanism is the require/define calls.)
  CodeMirror.defineMode = function(name/*, mode, …*/) {
    if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name; }
    defineMode.apply(this, arguments);
  };

  CodeMirror.defineMIME = defineMIME;

  // Minimal default mode.
  CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); });
  CodeMirror.defineMIME("text/plain", "null");

  // EXTENSIONS

  CodeMirror.defineExtension = function (name, func) {
    CodeMirror.prototype[name] = func;
  };
  CodeMirror.defineDocExtension = function (name, func) {
    Doc.prototype[name] = func;
  };

  CodeMirror.fromTextArea = fromTextArea;

  addLegacyProps(CodeMirror);

  CodeMirror.version = "5.56.0";

  return CodeMirror;

})));

;(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
    typeof define === 'function' && define.amd ? define('moment',factory) :
    global.moment = factory()
}(this, (function () { 'use strict';

var hookCallback;

function hooks () {
    return hookCallback.apply(null, arguments);
}

// This is done to register the method called with moment()
// without creating circular dependencies.
function setHookCallback (callback) {
    hookCallback = callback;
}

function isArray(input) {
    return input instanceof Array || Object.prototype.toString.call(input) === '[object Array]';
}

function isObject(input) {
    // IE8 will treat undefined and null as object if it wasn't for
    // input != null
    return input != null && Object.prototype.toString.call(input) === '[object Object]';
}

function isObjectEmpty(obj) {
    if (Object.getOwnPropertyNames) {
        return (Object.getOwnPropertyNames(obj).length === 0);
    } else {
        var k;
        for (k in obj) {
            if (obj.hasOwnProperty(k)) {
                return false;
            }
        }
        return true;
    }
}

function isUndefined(input) {
    return input === void 0;
}

function isNumber(input) {
    return typeof input === 'number' || Object.prototype.toString.call(input) === '[object Number]';
}

function isDate(input) {
    return input instanceof Date || Object.prototype.toString.call(input) === '[object Date]';
}

function map(arr, fn) {
    var res = [], i;
    for (i = 0; i < arr.length; ++i) {
        res.push(fn(arr[i], i));
    }
    return res;
}

function hasOwnProp(a, b) {
    return Object.prototype.hasOwnProperty.call(a, b);
}

function extend(a, b) {
    for (var i in b) {
        if (hasOwnProp(b, i)) {
            a[i] = b[i];
        }
    }

    if (hasOwnProp(b, 'toString')) {
        a.toString = b.toString;
    }

    if (hasOwnProp(b, 'valueOf')) {
        a.valueOf = b.valueOf;
    }

    return a;
}

function createUTC (input, format, locale, strict) {
    return createLocalOrUTC(input, format, locale, strict, true).utc();
}

function defaultParsingFlags() {
    // We need to deep clone this object.
    return {
        empty           : false,
        unusedTokens    : [],
        unusedInput     : [],
        overflow        : -2,
        charsLeftOver   : 0,
        nullInput       : false,
        invalidMonth    : null,
        invalidFormat   : false,
        userInvalidated : false,
        iso             : false,
        parsedDateParts : [],
        meridiem        : null,
        rfc2822         : false,
        weekdayMismatch : false
    };
}

function getParsingFlags(m) {
    if (m._pf == null) {
        m._pf = defaultParsingFlags();
    }
    return m._pf;
}

var some;
if (Array.prototype.some) {
    some = Array.prototype.some;
} else {
    some = function (fun) {
        var t = Object(this);
        var len = t.length >>> 0;

        for (var i = 0; i < len; i++) {
            if (i in t && fun.call(this, t[i], i, t)) {
                return true;
            }
        }

        return false;
    };
}

function isValid(m) {
    if (m._isValid == null) {
        var flags = getParsingFlags(m);
        var parsedParts = some.call(flags.parsedDateParts, function (i) {
            return i != null;
        });
        var isNowValid = !isNaN(m._d.getTime()) &&
            flags.overflow < 0 &&
            !flags.empty &&
            !flags.invalidMonth &&
            !flags.invalidWeekday &&
            !flags.weekdayMismatch &&
            !flags.nullInput &&
            !flags.invalidFormat &&
            !flags.userInvalidated &&
            (!flags.meridiem || (flags.meridiem && parsedParts));

        if (m._strict) {
            isNowValid = isNowValid &&
                flags.charsLeftOver === 0 &&
                flags.unusedTokens.length === 0 &&
                flags.bigHour === undefined;
        }

        if (Object.isFrozen == null || !Object.isFrozen(m)) {
            m._isValid = isNowValid;
        }
        else {
            return isNowValid;
        }
    }
    return m._isValid;
}

function createInvalid (flags) {
    var m = createUTC(NaN);
    if (flags != null) {
        extend(getParsingFlags(m), flags);
    }
    else {
        getParsingFlags(m).userInvalidated = true;
    }

    return m;
}

// Plugins that add properties should also add the key here (null value),
// so we can properly clone ourselves.
var momentProperties = hooks.momentProperties = [];

function copyConfig(to, from) {
    var i, prop, val;

    if (!isUndefined(from._isAMomentObject)) {
        to._isAMomentObject = from._isAMomentObject;
    }
    if (!isUndefined(from._i)) {
        to._i = from._i;
    }
    if (!isUndefined(from._f)) {
        to._f = from._f;
    }
    if (!isUndefined(from._l)) {
        to._l = from._l;
    }
    if (!isUndefined(from._strict)) {
        to._strict = from._strict;
    }
    if (!isUndefined(from._tzm)) {
        to._tzm = from._tzm;
    }
    if (!isUndefined(from._isUTC)) {
        to._isUTC = from._isUTC;
    }
    if (!isUndefined(from._offset)) {
        to._offset = from._offset;
    }
    if (!isUndefined(from._pf)) {
        to._pf = getParsingFlags(from);
    }
    if (!isUndefined(from._locale)) {
        to._locale = from._locale;
    }

    if (momentProperties.length > 0) {
        for (i = 0; i < momentProperties.length; i++) {
            prop = momentProperties[i];
            val = from[prop];
            if (!isUndefined(val)) {
                to[prop] = val;
            }
        }
    }

    return to;
}

var updateInProgress = false;

// Moment prototype object
function Moment(config) {
    copyConfig(this, config);
    this._d = new Date(config._d != null ? config._d.getTime() : NaN);
    if (!this.isValid()) {
        this._d = new Date(NaN);
    }
    // Prevent infinite loop in case updateOffset creates new moment
    // objects.
    if (updateInProgress === false) {
        updateInProgress = true;
        hooks.updateOffset(this);
        updateInProgress = false;
    }
}

function isMoment (obj) {
    return obj instanceof Moment || (obj != null && obj._isAMomentObject != null);
}

function absFloor (number) {
    if (number < 0) {
        // -0 -> 0
        return Math.ceil(number) || 0;
    } else {
        return Math.floor(number);
    }
}

function toInt(argumentForCoercion) {
    var coercedNumber = +argumentForCoercion,
        value = 0;

    if (coercedNumber !== 0 && isFinite(coercedNumber)) {
        value = absFloor(coercedNumber);
    }

    return value;
}

// compare two arrays, return the number of differences
function compareArrays(array1, array2, dontConvert) {
    var len = Math.min(array1.length, array2.length),
        lengthDiff = Math.abs(array1.length - array2.length),
        diffs = 0,
        i;
    for (i = 0; i < len; i++) {
        if ((dontConvert && array1[i] !== array2[i]) ||
            (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
            diffs++;
        }
    }
    return diffs + lengthDiff;
}

function warn(msg) {
    if (hooks.suppressDeprecationWarnings === false &&
            (typeof console !==  'undefined') && console.warn) {
        console.warn('Deprecation warning: ' + msg);
    }
}

function deprecate(msg, fn) {
    var firstTime = true;

    return extend(function () {
        if (hooks.deprecationHandler != null) {
            hooks.deprecationHandler(null, msg);
        }
        if (firstTime) {
            var args = [];
            var arg;
            for (var i = 0; i < arguments.length; i++) {
                arg = '';
                if (typeof arguments[i] === 'object') {
                    arg += '\n[' + i + '] ';
                    for (var key in arguments[0]) {
                        arg += key + ': ' + arguments[0][key] + ', ';
                    }
                    arg = arg.slice(0, -2); // Remove trailing comma and space
                } else {
                    arg = arguments[i];
                }
                args.push(arg);
            }
            warn(msg + '\nArguments: ' + Array.prototype.slice.call(args).join('') + '\n' + (new Error()).stack);
            firstTime = false;
        }
        return fn.apply(this, arguments);
    }, fn);
}

var deprecations = {};

function deprecateSimple(name, msg) {
    if (hooks.deprecationHandler != null) {
        hooks.deprecationHandler(name, msg);
    }
    if (!deprecations[name]) {
        warn(msg);
        deprecations[name] = true;
    }
}

hooks.suppressDeprecationWarnings = false;
hooks.deprecationHandler = null;

function isFunction(input) {
    return input instanceof Function || Object.prototype.toString.call(input) === '[object Function]';
}

function set (config) {
    var prop, i;
    for (i in config) {
        prop = config[i];
        if (isFunction(prop)) {
            this[i] = prop;
        } else {
            this['_' + i] = prop;
        }
    }
    this._config = config;
    // Lenient ordinal parsing accepts just a number in addition to
    // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
    // TODO: Remove "ordinalParse" fallback in next major release.
    this._dayOfMonthOrdinalParseLenient = new RegExp(
        (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
            '|' + (/\d{1,2}/).source);
}

function mergeConfigs(parentConfig, childConfig) {
    var res = extend({}, parentConfig), prop;
    for (prop in childConfig) {
        if (hasOwnProp(childConfig, prop)) {
            if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
                res[prop] = {};
                extend(res[prop], parentConfig[prop]);
                extend(res[prop], childConfig[prop]);
            } else if (childConfig[prop] != null) {
                res[prop] = childConfig[prop];
            } else {
                delete res[prop];
            }
        }
    }
    for (prop in parentConfig) {
        if (hasOwnProp(parentConfig, prop) &&
                !hasOwnProp(childConfig, prop) &&
                isObject(parentConfig[prop])) {
            // make sure changes to properties don't modify parent config
            res[prop] = extend({}, res[prop]);
        }
    }
    return res;
}

function Locale(config) {
    if (config != null) {
        this.set(config);
    }
}

var keys;

if (Object.keys) {
    keys = Object.keys;
} else {
    keys = function (obj) {
        var i, res = [];
        for (i in obj) {
            if (hasOwnProp(obj, i)) {
                res.push(i);
            }
        }
        return res;
    };
}

var defaultCalendar = {
    sameDay : '[Today at] LT',
    nextDay : '[Tomorrow at] LT',
    nextWeek : 'dddd [at] LT',
    lastDay : '[Yesterday at] LT',
    lastWeek : '[Last] dddd [at] LT',
    sameElse : 'L'
};

function calendar (key, mom, now) {
    var output = this._calendar[key] || this._calendar['sameElse'];
    return isFunction(output) ? output.call(mom, now) : output;
}

var defaultLongDateFormat = {
    LTS  : 'h:mm:ss A',
    LT   : 'h:mm A',
    L    : 'MM/DD/YYYY',
    LL   : 'MMMM D, YYYY',
    LLL  : 'MMMM D, YYYY h:mm A',
    LLLL : 'dddd, MMMM D, YYYY h:mm A'
};

function longDateFormat (key) {
    var format = this._longDateFormat[key],
        formatUpper = this._longDateFormat[key.toUpperCase()];

    if (format || !formatUpper) {
        return format;
    }

    this._longDateFormat[key] = formatUpper.replace(/MMMM|MM|DD|dddd/g, function (val) {
        return val.slice(1);
    });

    return this._longDateFormat[key];
}

var defaultInvalidDate = 'Invalid date';

function invalidDate () {
    return this._invalidDate;
}

var defaultOrdinal = '%d';
var defaultDayOfMonthOrdinalParse = /\d{1,2}/;

function ordinal (number) {
    return this._ordinal.replace('%d', number);
}

var defaultRelativeTime = {
    future : 'in %s',
    past   : '%s ago',
    s  : 'a few seconds',
    ss : '%d seconds',
    m  : 'a minute',
    mm : '%d minutes',
    h  : 'an hour',
    hh : '%d hours',
    d  : 'a day',
    dd : '%d days',
    M  : 'a month',
    MM : '%d months',
    y  : 'a year',
    yy : '%d years'
};

function relativeTime (number, withoutSuffix, string, isFuture) {
    var output = this._relativeTime[string];
    return (isFunction(output)) ?
        output(number, withoutSuffix, string, isFuture) :
        output.replace(/%d/i, number);
}

function pastFuture (diff, output) {
    var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
    return isFunction(format) ? format(output) : format.replace(/%s/i, output);
}

var aliases = {};

function addUnitAlias (unit, shorthand) {
    var lowerCase = unit.toLowerCase();
    aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;
}

function normalizeUnits(units) {
    return typeof units === 'string' ? aliases[units] || aliases[units.toLowerCase()] : undefined;
}

function normalizeObjectUnits(inputObject) {
    var normalizedInput = {},
        normalizedProp,
        prop;

    for (prop in inputObject) {
        if (hasOwnProp(inputObject, prop)) {
            normalizedProp = normalizeUnits(prop);
            if (normalizedProp) {
                normalizedInput[normalizedProp] = inputObject[prop];
            }
        }
    }

    return normalizedInput;
}

var priorities = {};

function addUnitPriority(unit, priority) {
    priorities[unit] = priority;
}

function getPrioritizedUnits(unitsObj) {
    var units = [];
    for (var u in unitsObj) {
        units.push({unit: u, priority: priorities[u]});
    }
    units.sort(function (a, b) {
        return a.priority - b.priority;
    });
    return units;
}

function zeroFill(number, targetLength, forceSign) {
    var absNumber = '' + Math.abs(number),
        zerosToFill = targetLength - absNumber.length,
        sign = number >= 0;
    return (sign ? (forceSign ? '+' : '') : '-') +
        Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) + absNumber;
}

var formattingTokens = /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g;

var localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g;

var formatFunctions = {};

var formatTokenFunctions = {};

// token:    'M'
// padded:   ['MM', 2]
// ordinal:  'Mo'
// callback: function () { this.month() + 1 }
function addFormatToken (token, padded, ordinal, callback) {
    var func = callback;
    if (typeof callback === 'string') {
        func = function () {
            return this[callback]();
        };
    }
    if (token) {
        formatTokenFunctions[token] = func;
    }
    if (padded) {
        formatTokenFunctions[padded[0]] = function () {
            return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
        };
    }
    if (ordinal) {
        formatTokenFunctions[ordinal] = function () {
            return this.localeData().ordinal(func.apply(this, arguments), token);
        };
    }
}

function removeFormattingTokens(input) {
    if (input.match(/\[[\s\S]/)) {
        return input.replace(/^\[|\]$/g, '');
    }
    return input.replace(/\\/g, '');
}

function makeFormatFunction(format) {
    var array = format.match(formattingTokens), i, length;

    for (i = 0, length = array.length; i < length; i++) {
        if (formatTokenFunctions[array[i]]) {
            array[i] = formatTokenFunctions[array[i]];
        } else {
            array[i] = removeFormattingTokens(array[i]);
        }
    }

    return function (mom) {
        var output = '', i;
        for (i = 0; i < length; i++) {
            output += isFunction(array[i]) ? array[i].call(mom, format) : array[i];
        }
        return output;
    };
}

// format date using native date object
function formatMoment(m, format) {
    if (!m.isValid()) {
        return m.localeData().invalidDate();
    }

    format = expandFormat(format, m.localeData());
    formatFunctions[format] = formatFunctions[format] || makeFormatFunction(format);

    return formatFunctions[format](m);
}

function expandFormat(format, locale) {
    var i = 5;

    function replaceLongDateFormatTokens(input) {
        return locale.longDateFormat(input) || input;
    }

    localFormattingTokens.lastIndex = 0;
    while (i >= 0 && localFormattingTokens.test(format)) {
        format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
        localFormattingTokens.lastIndex = 0;
        i -= 1;
    }

    return format;
}

var match1         = /\d/;            //       0 - 9
var match2         = /\d\d/;          //      00 - 99
var match3         = /\d{3}/;         //     000 - 999
var match4         = /\d{4}/;         //    0000 - 9999
var match6         = /[+-]?\d{6}/;    // -999999 - 999999
var match1to2      = /\d\d?/;         //       0 - 99
var match3to4      = /\d\d\d\d?/;     //     999 - 9999
var match5to6      = /\d\d\d\d\d\d?/; //   99999 - 999999
var match1to3      = /\d{1,3}/;       //       0 - 999
var match1to4      = /\d{1,4}/;       //       0 - 9999
var match1to6      = /[+-]?\d{1,6}/;  // -999999 - 999999

var matchUnsigned  = /\d+/;           //       0 - inf
var matchSigned    = /[+-]?\d+/;      //    -inf - inf

var matchOffset    = /Z|[+-]\d\d:?\d\d/gi; // +00:00 -00:00 +0000 -0000 or Z
var matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi; // +00 -00 +00:00 -00:00 +0000 -0000 or Z

var matchTimestamp = /[+-]?\d+(\.\d{1,3})?/; // 123456789 123456789.123

// any word (or two) characters or numbers including two/three word month in arabic.
// includes scottish gaelic two word and hyphenated months
var matchWord = /[0-9]{0,256}['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]{1,256}|[\u0600-\u06FF\/]{1,256}(\s*?[\u0600-\u06FF]{1,256}){1,2}/i;


var regexes = {};

function addRegexToken (token, regex, strictRegex) {
    regexes[token] = isFunction(regex) ? regex : function (isStrict, localeData) {
        return (isStrict && strictRegex) ? strictRegex : regex;
    };
}

function getParseRegexForToken (token, config) {
    if (!hasOwnProp(regexes, token)) {
        return new RegExp(unescapeFormat(token));
    }

    return regexes[token](config._strict, config._locale);
}

// Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
function unescapeFormat(s) {
    return regexEscape(s.replace('\\', '').replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) {
        return p1 || p2 || p3 || p4;
    }));
}

function regexEscape(s) {
    return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
}

var tokens = {};

function addParseToken (token, callback) {
    var i, func = callback;
    if (typeof token === 'string') {
        token = [token];
    }
    if (isNumber(callback)) {
        func = function (input, array) {
            array[callback] = toInt(input);
        };
    }
    for (i = 0; i < token.length; i++) {
        tokens[token[i]] = func;
    }
}

function addWeekParseToken (token, callback) {
    addParseToken(token, function (input, array, config, token) {
        config._w = config._w || {};
        callback(input, config._w, config, token);
    });
}

function addTimeToArrayFromToken(token, input, config) {
    if (input != null && hasOwnProp(tokens, token)) {
        tokens[token](input, config._a, config, token);
    }
}

var YEAR = 0;
var MONTH = 1;
var DATE = 2;
var HOUR = 3;
var MINUTE = 4;
var SECOND = 5;
var MILLISECOND = 6;
var WEEK = 7;
var WEEKDAY = 8;

// FORMATTING

addFormatToken('Y', 0, 0, function () {
    var y = this.year();
    return y <= 9999 ? '' + y : '+' + y;
});

addFormatToken(0, ['YY', 2], 0, function () {
    return this.year() % 100;
});

addFormatToken(0, ['YYYY',   4],       0, 'year');
addFormatToken(0, ['YYYYY',  5],       0, 'year');
addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');

// ALIASES

addUnitAlias('year', 'y');

// PRIORITIES

addUnitPriority('year', 1);

// PARSING

addRegexToken('Y',      matchSigned);
addRegexToken('YY',     match1to2, match2);
addRegexToken('YYYY',   match1to4, match4);
addRegexToken('YYYYY',  match1to6, match6);
addRegexToken('YYYYYY', match1to6, match6);

addParseToken(['YYYYY', 'YYYYYY'], YEAR);
addParseToken('YYYY', function (input, array) {
    array[YEAR] = input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
});
addParseToken('YY', function (input, array) {
    array[YEAR] = hooks.parseTwoDigitYear(input);
});
addParseToken('Y', function (input, array) {
    array[YEAR] = parseInt(input, 10);
});

// HELPERS

function daysInYear(year) {
    return isLeapYear(year) ? 366 : 365;
}

function isLeapYear(year) {
    return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
}

// HOOKS

hooks.parseTwoDigitYear = function (input) {
    return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
};

// MOMENTS

var getSetYear = makeGetSet('FullYear', true);

function getIsLeapYear () {
    return isLeapYear(this.year());
}

function makeGetSet (unit, keepTime) {
    return function (value) {
        if (value != null) {
            set$1(this, unit, value);
            hooks.updateOffset(this, keepTime);
            return this;
        } else {
            return get(this, unit);
        }
    };
}

function get (mom, unit) {
    return mom.isValid() ?
        mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]() : NaN;
}

function set$1 (mom, unit, value) {
    if (mom.isValid() && !isNaN(value)) {
        if (unit === 'FullYear' && isLeapYear(mom.year()) && mom.month() === 1 && mom.date() === 29) {
            mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value, mom.month(), daysInMonth(value, mom.month()));
        }
        else {
            mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
        }
    }
}

// MOMENTS

function stringGet (units) {
    units = normalizeUnits(units);
    if (isFunction(this[units])) {
        return this[units]();
    }
    return this;
}


function stringSet (units, value) {
    if (typeof units === 'object') {
        units = normalizeObjectUnits(units);
        var prioritized = getPrioritizedUnits(units);
        for (var i = 0; i < prioritized.length; i++) {
            this[prioritized[i].unit](units[prioritized[i].unit]);
        }
    } else {
        units = normalizeUnits(units);
        if (isFunction(this[units])) {
            return this[units](value);
        }
    }
    return this;
}

function mod(n, x) {
    return ((n % x) + x) % x;
}

var indexOf;

if (Array.prototype.indexOf) {
    indexOf = Array.prototype.indexOf;
} else {
    indexOf = function (o) {
        // I know
        var i;
        for (i = 0; i < this.length; ++i) {
            if (this[i] === o) {
                return i;
            }
        }
        return -1;
    };
}

function daysInMonth(year, month) {
    if (isNaN(year) || isNaN(month)) {
        return NaN;
    }
    var modMonth = mod(month, 12);
    year += (month - modMonth) / 12;
    return modMonth === 1 ? (isLeapYear(year) ? 29 : 28) : (31 - modMonth % 7 % 2);
}

// FORMATTING

addFormatToken('M', ['MM', 2], 'Mo', function () {
    return this.month() + 1;
});

addFormatToken('MMM', 0, 0, function (format) {
    return this.localeData().monthsShort(this, format);
});

addFormatToken('MMMM', 0, 0, function (format) {
    return this.localeData().months(this, format);
});

// ALIASES

addUnitAlias('month', 'M');

// PRIORITY

addUnitPriority('month', 8);

// PARSING

addRegexToken('M',    match1to2);
addRegexToken('MM',   match1to2, match2);
addRegexToken('MMM',  function (isStrict, locale) {
    return locale.monthsShortRegex(isStrict);
});
addRegexToken('MMMM', function (isStrict, locale) {
    return locale.monthsRegex(isStrict);
});

addParseToken(['M', 'MM'], function (input, array) {
    array[MONTH] = toInt(input) - 1;
});

addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
    var month = config._locale.monthsParse(input, token, config._strict);
    // if we didn't find a month name, mark the date as invalid.
    if (month != null) {
        array[MONTH] = month;
    } else {
        getParsingFlags(config).invalidMonth = input;
    }
});

// LOCALES

var MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/;
var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_');
function localeMonths (m, format) {
    if (!m) {
        return isArray(this._months) ? this._months :
            this._months['standalone'];
    }
    return isArray(this._months) ? this._months[m.month()] :
        this._months[(this._months.isFormat || MONTHS_IN_FORMAT).test(format) ? 'format' : 'standalone'][m.month()];
}

var defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_');
function localeMonthsShort (m, format) {
    if (!m) {
        return isArray(this._monthsShort) ? this._monthsShort :
            this._monthsShort['standalone'];
    }
    return isArray(this._monthsShort) ? this._monthsShort[m.month()] :
        this._monthsShort[MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'][m.month()];
}

function handleStrictParse(monthName, format, strict) {
    var i, ii, mom, llc = monthName.toLocaleLowerCase();
    if (!this._monthsParse) {
        // this is not used
        this._monthsParse = [];
        this._longMonthsParse = [];
        this._shortMonthsParse = [];
        for (i = 0; i < 12; ++i) {
            mom = createUTC([2000, i]);
            this._shortMonthsParse[i] = this.monthsShort(mom, '').toLocaleLowerCase();
            this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
        }
    }

    if (strict) {
        if (format === 'MMM') {
            ii = indexOf.call(this._shortMonthsParse, llc);
            return ii !== -1 ? ii : null;
        } else {
            ii = indexOf.call(this._longMonthsParse, llc);
            return ii !== -1 ? ii : null;
        }
    } else {
        if (format === 'MMM') {
            ii = indexOf.call(this._shortMonthsParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf.call(this._longMonthsParse, llc);
            return ii !== -1 ? ii : null;
        } else {
            ii = indexOf.call(this._longMonthsParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf.call(this._shortMonthsParse, llc);
            return ii !== -1 ? ii : null;
        }
    }
}

function localeMonthsParse (monthName, format, strict) {
    var i, mom, regex;

    if (this._monthsParseExact) {
        return handleStrictParse.call(this, monthName, format, strict);
    }

    if (!this._monthsParse) {
        this._monthsParse = [];
        this._longMonthsParse = [];
        this._shortMonthsParse = [];
    }

    // TODO: add sorting
    // Sorting makes sure if one month (or abbr) is a prefix of another
    // see sorting in computeMonthsParse
    for (i = 0; i < 12; i++) {
        // make the regex if we don't have it already
        mom = createUTC([2000, i]);
        if (strict && !this._longMonthsParse[i]) {
            this._longMonthsParse[i] = new RegExp('^' + this.months(mom, '').replace('.', '') + '$', 'i');
            this._shortMonthsParse[i] = new RegExp('^' + this.monthsShort(mom, '').replace('.', '') + '$', 'i');
        }
        if (!strict && !this._monthsParse[i]) {
            regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
            this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
        }
        // test the regex
        if (strict && format === 'MMMM' && this._longMonthsParse[i].test(monthName)) {
            return i;
        } else if (strict && format === 'MMM' && this._shortMonthsParse[i].test(monthName)) {
            return i;
        } else if (!strict && this._monthsParse[i].test(monthName)) {
            return i;
        }
    }
}

// MOMENTS

function setMonth (mom, value) {
    var dayOfMonth;

    if (!mom.isValid()) {
        // No op
        return mom;
    }

    if (typeof value === 'string') {
        if (/^\d+$/.test(value)) {
            value = toInt(value);
        } else {
            value = mom.localeData().monthsParse(value);
            // TODO: Another silent failure?
            if (!isNumber(value)) {
                return mom;
            }
        }
    }

    dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));
    mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
    return mom;
}

function getSetMonth (value) {
    if (value != null) {
        setMonth(this, value);
        hooks.updateOffset(this, true);
        return this;
    } else {
        return get(this, 'Month');
    }
}

function getDaysInMonth () {
    return daysInMonth(this.year(), this.month());
}

var defaultMonthsShortRegex = matchWord;
function monthsShortRegex (isStrict) {
    if (this._monthsParseExact) {
        if (!hasOwnProp(this, '_monthsRegex')) {
            computeMonthsParse.call(this);
        }
        if (isStrict) {
            return this._monthsShortStrictRegex;
        } else {
            return this._monthsShortRegex;
        }
    } else {
        if (!hasOwnProp(this, '_monthsShortRegex')) {
            this._monthsShortRegex = defaultMonthsShortRegex;
        }
        return this._monthsShortStrictRegex && isStrict ?
            this._monthsShortStrictRegex : this._monthsShortRegex;
    }
}

var defaultMonthsRegex = matchWord;
function monthsRegex (isStrict) {
    if (this._monthsParseExact) {
        if (!hasOwnProp(this, '_monthsRegex')) {
            computeMonthsParse.call(this);
        }
        if (isStrict) {
            return this._monthsStrictRegex;
        } else {
            return this._monthsRegex;
        }
    } else {
        if (!hasOwnProp(this, '_monthsRegex')) {
            this._monthsRegex = defaultMonthsRegex;
        }
        return this._monthsStrictRegex && isStrict ?
            this._monthsStrictRegex : this._monthsRegex;
    }
}

function computeMonthsParse () {
    function cmpLenRev(a, b) {
        return b.length - a.length;
    }

    var shortPieces = [], longPieces = [], mixedPieces = [],
        i, mom;
    for (i = 0; i < 12; i++) {
        // make the regex if we don't have it already
        mom = createUTC([2000, i]);
        shortPieces.push(this.monthsShort(mom, ''));
        longPieces.push(this.months(mom, ''));
        mixedPieces.push(this.months(mom, ''));
        mixedPieces.push(this.monthsShort(mom, ''));
    }
    // Sorting makes sure if one month (or abbr) is a prefix of another it
    // will match the longer piece.
    shortPieces.sort(cmpLenRev);
    longPieces.sort(cmpLenRev);
    mixedPieces.sort(cmpLenRev);
    for (i = 0; i < 12; i++) {
        shortPieces[i] = regexEscape(shortPieces[i]);
        longPieces[i] = regexEscape(longPieces[i]);
    }
    for (i = 0; i < 24; i++) {
        mixedPieces[i] = regexEscape(mixedPieces[i]);
    }

    this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
    this._monthsShortRegex = this._monthsRegex;
    this._monthsStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
    this._monthsShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
}

function createDate (y, m, d, h, M, s, ms) {
    // can't just apply() to create a date:
    // https://stackoverflow.com/q/181348
    var date = new Date(y, m, d, h, M, s, ms);

    // the date constructor remaps years 0-99 to 1900-1999
    if (y < 100 && y >= 0 && isFinite(date.getFullYear())) {
        date.setFullYear(y);
    }
    return date;
}

function createUTCDate (y) {
    var date = new Date(Date.UTC.apply(null, arguments));

    // the Date.UTC function remaps years 0-99 to 1900-1999
    if (y < 100 && y >= 0 && isFinite(date.getUTCFullYear())) {
        date.setUTCFullYear(y);
    }
    return date;
}

// start-of-first-week - start-of-year
function firstWeekOffset(year, dow, doy) {
    var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
        fwd = 7 + dow - doy,
        // first-week day local weekday -- which local weekday is fwd
        fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;

    return -fwdlw + fwd - 1;
}

// https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
    var localWeekday = (7 + weekday - dow) % 7,
        weekOffset = firstWeekOffset(year, dow, doy),
        dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
        resYear, resDayOfYear;

    if (dayOfYear <= 0) {
        resYear = year - 1;
        resDayOfYear = daysInYear(resYear) + dayOfYear;
    } else if (dayOfYear > daysInYear(year)) {
        resYear = year + 1;
        resDayOfYear = dayOfYear - daysInYear(year);
    } else {
        resYear = year;
        resDayOfYear = dayOfYear;
    }

    return {
        year: resYear,
        dayOfYear: resDayOfYear
    };
}

function weekOfYear(mom, dow, doy) {
    var weekOffset = firstWeekOffset(mom.year(), dow, doy),
        week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
        resWeek, resYear;

    if (week < 1) {
        resYear = mom.year() - 1;
        resWeek = week + weeksInYear(resYear, dow, doy);
    } else if (week > weeksInYear(mom.year(), dow, doy)) {
        resWeek = week - weeksInYear(mom.year(), dow, doy);
        resYear = mom.year() + 1;
    } else {
        resYear = mom.year();
        resWeek = week;
    }

    return {
        week: resWeek,
        year: resYear
    };
}

function weeksInYear(year, dow, doy) {
    var weekOffset = firstWeekOffset(year, dow, doy),
        weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
    return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
}

// FORMATTING

addFormatToken('w', ['ww', 2], 'wo', 'week');
addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');

// ALIASES

addUnitAlias('week', 'w');
addUnitAlias('isoWeek', 'W');

// PRIORITIES

addUnitPriority('week', 5);
addUnitPriority('isoWeek', 5);

// PARSING

addRegexToken('w',  match1to2);
addRegexToken('ww', match1to2, match2);
addRegexToken('W',  match1to2);
addRegexToken('WW', match1to2, match2);

addWeekParseToken(['w', 'ww', 'W', 'WW'], function (input, week, config, token) {
    week[token.substr(0, 1)] = toInt(input);
});

// HELPERS

// LOCALES

function localeWeek (mom) {
    return weekOfYear(mom, this._week.dow, this._week.doy).week;
}

var defaultLocaleWeek = {
    dow : 0, // Sunday is the first day of the week.
    doy : 6  // The week that contains Jan 1st is the first week of the year.
};

function localeFirstDayOfWeek () {
    return this._week.dow;
}

function localeFirstDayOfYear () {
    return this._week.doy;
}

// MOMENTS

function getSetWeek (input) {
    var week = this.localeData().week(this);
    return input == null ? week : this.add((input - week) * 7, 'd');
}

function getSetISOWeek (input) {
    var week = weekOfYear(this, 1, 4).week;
    return input == null ? week : this.add((input - week) * 7, 'd');
}

// FORMATTING

addFormatToken('d', 0, 'do', 'day');

addFormatToken('dd', 0, 0, function (format) {
    return this.localeData().weekdaysMin(this, format);
});

addFormatToken('ddd', 0, 0, function (format) {
    return this.localeData().weekdaysShort(this, format);
});

addFormatToken('dddd', 0, 0, function (format) {
    return this.localeData().weekdays(this, format);
});

addFormatToken('e', 0, 0, 'weekday');
addFormatToken('E', 0, 0, 'isoWeekday');

// ALIASES

addUnitAlias('day', 'd');
addUnitAlias('weekday', 'e');
addUnitAlias('isoWeekday', 'E');

// PRIORITY
addUnitPriority('day', 11);
addUnitPriority('weekday', 11);
addUnitPriority('isoWeekday', 11);

// PARSING

addRegexToken('d',    match1to2);
addRegexToken('e',    match1to2);
addRegexToken('E',    match1to2);
addRegexToken('dd',   function (isStrict, locale) {
    return locale.weekdaysMinRegex(isStrict);
});
addRegexToken('ddd',   function (isStrict, locale) {
    return locale.weekdaysShortRegex(isStrict);
});
addRegexToken('dddd',   function (isStrict, locale) {
    return locale.weekdaysRegex(isStrict);
});

addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
    var weekday = config._locale.weekdaysParse(input, token, config._strict);
    // if we didn't get a weekday name, mark the date as invalid
    if (weekday != null) {
        week.d = weekday;
    } else {
        getParsingFlags(config).invalidWeekday = input;
    }
});

addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
    week[token] = toInt(input);
});

// HELPERS

function parseWeekday(input, locale) {
    if (typeof input !== 'string') {
        return input;
    }

    if (!isNaN(input)) {
        return parseInt(input, 10);
    }

    input = locale.weekdaysParse(input);
    if (typeof input === 'number') {
        return input;
    }

    return null;
}

function parseIsoWeekday(input, locale) {
    if (typeof input === 'string') {
        return locale.weekdaysParse(input) % 7 || 7;
    }
    return isNaN(input) ? null : input;
}

// LOCALES

var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_');
function localeWeekdays (m, format) {
    if (!m) {
        return isArray(this._weekdays) ? this._weekdays :
            this._weekdays['standalone'];
    }
    return isArray(this._weekdays) ? this._weekdays[m.day()] :
        this._weekdays[this._weekdays.isFormat.test(format) ? 'format' : 'standalone'][m.day()];
}

var defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_');
function localeWeekdaysShort (m) {
    return (m) ? this._weekdaysShort[m.day()] : this._weekdaysShort;
}

var defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_');
function localeWeekdaysMin (m) {
    return (m) ? this._weekdaysMin[m.day()] : this._weekdaysMin;
}

function handleStrictParse$1(weekdayName, format, strict) {
    var i, ii, mom, llc = weekdayName.toLocaleLowerCase();
    if (!this._weekdaysParse) {
        this._weekdaysParse = [];
        this._shortWeekdaysParse = [];
        this._minWeekdaysParse = [];

        for (i = 0; i < 7; ++i) {
            mom = createUTC([2000, 1]).day(i);
            this._minWeekdaysParse[i] = this.weekdaysMin(mom, '').toLocaleLowerCase();
            this._shortWeekdaysParse[i] = this.weekdaysShort(mom, '').toLocaleLowerCase();
            this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
        }
    }

    if (strict) {
        if (format === 'dddd') {
            ii = indexOf.call(this._weekdaysParse, llc);
            return ii !== -1 ? ii : null;
        } else if (format === 'ddd') {
            ii = indexOf.call(this._shortWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        } else {
            ii = indexOf.call(this._minWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        }
    } else {
        if (format === 'dddd') {
            ii = indexOf.call(this._weekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf.call(this._shortWeekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf.call(this._minWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        } else if (format === 'ddd') {
            ii = indexOf.call(this._shortWeekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf.call(this._weekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf.call(this._minWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        } else {
            ii = indexOf.call(this._minWeekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf.call(this._weekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf.call(this._shortWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        }
    }
}

function localeWeekdaysParse (weekdayName, format, strict) {
    var i, mom, regex;

    if (this._weekdaysParseExact) {
        return handleStrictParse$1.call(this, weekdayName, format, strict);
    }

    if (!this._weekdaysParse) {
        this._weekdaysParse = [];
        this._minWeekdaysParse = [];
        this._shortWeekdaysParse = [];
        this._fullWeekdaysParse = [];
    }

    for (i = 0; i < 7; i++) {
        // make the regex if we don't have it already

        mom = createUTC([2000, 1]).day(i);
        if (strict && !this._fullWeekdaysParse[i]) {
            this._fullWeekdaysParse[i] = new RegExp('^' + this.weekdays(mom, '').replace('.', '\.?') + '$', 'i');
            this._shortWeekdaysParse[i] = new RegExp('^' + this.weekdaysShort(mom, '').replace('.', '\.?') + '$', 'i');
            this._minWeekdaysParse[i] = new RegExp('^' + this.weekdaysMin(mom, '').replace('.', '\.?') + '$', 'i');
        }
        if (!this._weekdaysParse[i]) {
            regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
            this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
        }
        // test the regex
        if (strict && format === 'dddd' && this._fullWeekdaysParse[i].test(weekdayName)) {
            return i;
        } else if (strict && format === 'ddd' && this._shortWeekdaysParse[i].test(weekdayName)) {
            return i;
        } else if (strict && format === 'dd' && this._minWeekdaysParse[i].test(weekdayName)) {
            return i;
        } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
            return i;
        }
    }
}

// MOMENTS

function getSetDayOfWeek (input) {
    if (!this.isValid()) {
        return input != null ? this : NaN;
    }
    var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
    if (input != null) {
        input = parseWeekday(input, this.localeData());
        return this.add(input - day, 'd');
    } else {
        return day;
    }
}

function getSetLocaleDayOfWeek (input) {
    if (!this.isValid()) {
        return input != null ? this : NaN;
    }
    var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
    return input == null ? weekday : this.add(input - weekday, 'd');
}

function getSetISODayOfWeek (input) {
    if (!this.isValid()) {
        return input != null ? this : NaN;
    }

    // behaves the same as moment#day except
    // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
    // as a setter, sunday should belong to the previous week.

    if (input != null) {
        var weekday = parseIsoWeekday(input, this.localeData());
        return this.day(this.day() % 7 ? weekday : weekday - 7);
    } else {
        return this.day() || 7;
    }
}

var defaultWeekdaysRegex = matchWord;
function weekdaysRegex (isStrict) {
    if (this._weekdaysParseExact) {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
            computeWeekdaysParse.call(this);
        }
        if (isStrict) {
            return this._weekdaysStrictRegex;
        } else {
            return this._weekdaysRegex;
        }
    } else {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
            this._weekdaysRegex = defaultWeekdaysRegex;
        }
        return this._weekdaysStrictRegex && isStrict ?
            this._weekdaysStrictRegex : this._weekdaysRegex;
    }
}

var defaultWeekdaysShortRegex = matchWord;
function weekdaysShortRegex (isStrict) {
    if (this._weekdaysParseExact) {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
            computeWeekdaysParse.call(this);
        }
        if (isStrict) {
            return this._weekdaysShortStrictRegex;
        } else {
            return this._weekdaysShortRegex;
        }
    } else {
        if (!hasOwnProp(this, '_weekdaysShortRegex')) {
            this._weekdaysShortRegex = defaultWeekdaysShortRegex;
        }
        return this._weekdaysShortStrictRegex && isStrict ?
            this._weekdaysShortStrictRegex : this._weekdaysShortRegex;
    }
}

var defaultWeekdaysMinRegex = matchWord;
function weekdaysMinRegex (isStrict) {
    if (this._weekdaysParseExact) {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
            computeWeekdaysParse.call(this);
        }
        if (isStrict) {
            return this._weekdaysMinStrictRegex;
        } else {
            return this._weekdaysMinRegex;
        }
    } else {
        if (!hasOwnProp(this, '_weekdaysMinRegex')) {
            this._weekdaysMinRegex = defaultWeekdaysMinRegex;
        }
        return this._weekdaysMinStrictRegex && isStrict ?
            this._weekdaysMinStrictRegex : this._weekdaysMinRegex;
    }
}


function computeWeekdaysParse () {
    function cmpLenRev(a, b) {
        return b.length - a.length;
    }

    var minPieces = [], shortPieces = [], longPieces = [], mixedPieces = [],
        i, mom, minp, shortp, longp;
    for (i = 0; i < 7; i++) {
        // make the regex if we don't have it already
        mom = createUTC([2000, 1]).day(i);
        minp = this.weekdaysMin(mom, '');
        shortp = this.weekdaysShort(mom, '');
        longp = this.weekdays(mom, '');
        minPieces.push(minp);
        shortPieces.push(shortp);
        longPieces.push(longp);
        mixedPieces.push(minp);
        mixedPieces.push(shortp);
        mixedPieces.push(longp);
    }
    // Sorting makes sure if one weekday (or abbr) is a prefix of another it
    // will match the longer piece.
    minPieces.sort(cmpLenRev);
    shortPieces.sort(cmpLenRev);
    longPieces.sort(cmpLenRev);
    mixedPieces.sort(cmpLenRev);
    for (i = 0; i < 7; i++) {
        shortPieces[i] = regexEscape(shortPieces[i]);
        longPieces[i] = regexEscape(longPieces[i]);
        mixedPieces[i] = regexEscape(mixedPieces[i]);
    }

    this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
    this._weekdaysShortRegex = this._weekdaysRegex;
    this._weekdaysMinRegex = this._weekdaysRegex;

    this._weekdaysStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
    this._weekdaysShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
    this._weekdaysMinStrictRegex = new RegExp('^(' + minPieces.join('|') + ')', 'i');
}

// FORMATTING

function hFormat() {
    return this.hours() % 12 || 12;
}

function kFormat() {
    return this.hours() || 24;
}

addFormatToken('H', ['HH', 2], 0, 'hour');
addFormatToken('h', ['hh', 2], 0, hFormat);
addFormatToken('k', ['kk', 2], 0, kFormat);

addFormatToken('hmm', 0, 0, function () {
    return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
});

addFormatToken('hmmss', 0, 0, function () {
    return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2) +
        zeroFill(this.seconds(), 2);
});

addFormatToken('Hmm', 0, 0, function () {
    return '' + this.hours() + zeroFill(this.minutes(), 2);
});

addFormatToken('Hmmss', 0, 0, function () {
    return '' + this.hours() + zeroFill(this.minutes(), 2) +
        zeroFill(this.seconds(), 2);
});

function meridiem (token, lowercase) {
    addFormatToken(token, 0, 0, function () {
        return this.localeData().meridiem(this.hours(), this.minutes(), lowercase);
    });
}

meridiem('a', true);
meridiem('A', false);

// ALIASES

addUnitAlias('hour', 'h');

// PRIORITY
addUnitPriority('hour', 13);

// PARSING

function matchMeridiem (isStrict, locale) {
    return locale._meridiemParse;
}

addRegexToken('a',  matchMeridiem);
addRegexToken('A',  matchMeridiem);
addRegexToken('H',  match1to2);
addRegexToken('h',  match1to2);
addRegexToken('k',  match1to2);
addRegexToken('HH', match1to2, match2);
addRegexToken('hh', match1to2, match2);
addRegexToken('kk', match1to2, match2);

addRegexToken('hmm', match3to4);
addRegexToken('hmmss', match5to6);
addRegexToken('Hmm', match3to4);
addRegexToken('Hmmss', match5to6);

addParseToken(['H', 'HH'], HOUR);
addParseToken(['k', 'kk'], function (input, array, config) {
    var kInput = toInt(input);
    array[HOUR] = kInput === 24 ? 0 : kInput;
});
addParseToken(['a', 'A'], function (input, array, config) {
    config._isPm = config._locale.isPM(input);
    config._meridiem = input;
});
addParseToken(['h', 'hh'], function (input, array, config) {
    array[HOUR] = toInt(input);
    getParsingFlags(config).bigHour = true;
});
addParseToken('hmm', function (input, array, config) {
    var pos = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos));
    array[MINUTE] = toInt(input.substr(pos));
    getParsingFlags(config).bigHour = true;
});
addParseToken('hmmss', function (input, array, config) {
    var pos1 = input.length - 4;
    var pos2 = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos1));
    array[MINUTE] = toInt(input.substr(pos1, 2));
    array[SECOND] = toInt(input.substr(pos2));
    getParsingFlags(config).bigHour = true;
});
addParseToken('Hmm', function (input, array, config) {
    var pos = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos));
    array[MINUTE] = toInt(input.substr(pos));
});
addParseToken('Hmmss', function (input, array, config) {
    var pos1 = input.length - 4;
    var pos2 = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos1));
    array[MINUTE] = toInt(input.substr(pos1, 2));
    array[SECOND] = toInt(input.substr(pos2));
});

// LOCALES

function localeIsPM (input) {
    // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
    // Using charAt should be more compatible.
    return ((input + '').toLowerCase().charAt(0) === 'p');
}

var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i;
function localeMeridiem (hours, minutes, isLower) {
    if (hours > 11) {
        return isLower ? 'pm' : 'PM';
    } else {
        return isLower ? 'am' : 'AM';
    }
}


// MOMENTS

// Setting the hour should keep the time, because the user explicitly
// specified which hour he wants. So trying to maintain the same hour (in
// a new timezone) makes sense. Adding/subtracting hours does not follow
// this rule.
var getSetHour = makeGetSet('Hours', true);

// months
// week
// weekdays
// meridiem
var baseConfig = {
    calendar: defaultCalendar,
    longDateFormat: defaultLongDateFormat,
    invalidDate: defaultInvalidDate,
    ordinal: defaultOrdinal,
    dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
    relativeTime: defaultRelativeTime,

    months: defaultLocaleMonths,
    monthsShort: defaultLocaleMonthsShort,

    week: defaultLocaleWeek,

    weekdays: defaultLocaleWeekdays,
    weekdaysMin: defaultLocaleWeekdaysMin,
    weekdaysShort: defaultLocaleWeekdaysShort,

    meridiemParse: defaultLocaleMeridiemParse
};

// internal storage for locale config files
var locales = {};
var localeFamilies = {};
var globalLocale;

function normalizeLocale(key) {
    return key ? key.toLowerCase().replace('_', '-') : key;
}

// pick the locale from the array
// try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
// substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
function chooseLocale(names) {
    var i = 0, j, next, locale, split;

    while (i < names.length) {
        split = normalizeLocale(names[i]).split('-');
        j = split.length;
        next = normalizeLocale(names[i + 1]);
        next = next ? next.split('-') : null;
        while (j > 0) {
            locale = loadLocale(split.slice(0, j).join('-'));
            if (locale) {
                return locale;
            }
            if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) {
                //the next array item is better than a shallower substring of this one
                break;
            }
            j--;
        }
        i++;
    }
    return null;
}

function loadLocale(name) {
    var oldLocale = null;
    // TODO: Find a better way to register and load all the locales in Node
    if (!locales[name] && (typeof module !== 'undefined') &&
            module && module.exports) {
        try {
            oldLocale = globalLocale._abbr;
            var aliasedRequire = require;
            aliasedRequire('./locale/' + name);
            getSetGlobalLocale(oldLocale);
        } catch (e) {}
    }
    return locales[name];
}

// This function will load locale and then set the global locale.  If
// no arguments are passed in, it will simply return the current global
// locale key.
function getSetGlobalLocale (key, values) {
    var data;
    if (key) {
        if (isUndefined(values)) {
            data = getLocale(key);
        }
        else {
            data = defineLocale(key, values);
        }

        if (data) {
            // moment.duration._locale = moment._locale = data;
            globalLocale = data;
        }
    }

    return globalLocale._abbr;
}

function defineLocale (name, config) {
    if (config !== null) {
        var parentConfig = baseConfig;
        config.abbr = name;
        if (locales[name] != null) {
            deprecateSimple('defineLocaleOverride',
                    'use moment.updateLocale(localeName, config) to change ' +
                    'an existing locale. moment.defineLocale(localeName, ' +
                    'config) should only be used for creating a new locale ' +
                    'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.');
            parentConfig = locales[name]._config;
        } else if (config.parentLocale != null) {
            if (locales[config.parentLocale] != null) {
                parentConfig = locales[config.parentLocale]._config;
            } else {
                if (!localeFamilies[config.parentLocale]) {
                    localeFamilies[config.parentLocale] = [];
                }
                localeFamilies[config.parentLocale].push({
                    name: name,
                    config: config
                });
                return null;
            }
        }
        locales[name] = new Locale(mergeConfigs(parentConfig, config));

        if (localeFamilies[name]) {
            localeFamilies[name].forEach(function (x) {
                defineLocale(x.name, x.config);
            });
        }

        // backwards compat for now: also set the locale
        // make sure we set the locale AFTER all child locales have been
        // created, so we won't end up with the child locale set.
        getSetGlobalLocale(name);


        return locales[name];
    } else {
        // useful for testing
        delete locales[name];
        return null;
    }
}

function updateLocale(name, config) {
    if (config != null) {
        var locale, tmpLocale, parentConfig = baseConfig;
        // MERGE
        tmpLocale = loadLocale(name);
        if (tmpLocale != null) {
            parentConfig = tmpLocale._config;
        }
        config = mergeConfigs(parentConfig, config);
        locale = new Locale(config);
        locale.parentLocale = locales[name];
        locales[name] = locale;

        // backwards compat for now: also set the locale
        getSetGlobalLocale(name);
    } else {
        // pass null for config to unupdate, useful for tests
        if (locales[name] != null) {
            if (locales[name].parentLocale != null) {
                locales[name] = locales[name].parentLocale;
            } else if (locales[name] != null) {
                delete locales[name];
            }
        }
    }
    return locales[name];
}

// returns locale data
function getLocale (key) {
    var locale;

    if (key && key._locale && key._locale._abbr) {
        key = key._locale._abbr;
    }

    if (!key) {
        return globalLocale;
    }

    if (!isArray(key)) {
        //short-circuit everything else
        locale = loadLocale(key);
        if (locale) {
            return locale;
        }
        key = [key];
    }

    return chooseLocale(key);
}

function listLocales() {
    return keys(locales);
}

function checkOverflow (m) {
    var overflow;
    var a = m._a;

    if (a && getParsingFlags(m).overflow === -2) {
        overflow =
            a[MONTH]       < 0 || a[MONTH]       > 11  ? MONTH :
            a[DATE]        < 1 || a[DATE]        > daysInMonth(a[YEAR], a[MONTH]) ? DATE :
            a[HOUR]        < 0 || a[HOUR]        > 24 || (a[HOUR] === 24 && (a[MINUTE] !== 0 || a[SECOND] !== 0 || a[MILLISECOND] !== 0)) ? HOUR :
            a[MINUTE]      < 0 || a[MINUTE]      > 59  ? MINUTE :
            a[SECOND]      < 0 || a[SECOND]      > 59  ? SECOND :
            a[MILLISECOND] < 0 || a[MILLISECOND] > 999 ? MILLISECOND :
            -1;

        if (getParsingFlags(m)._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
            overflow = DATE;
        }
        if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
            overflow = WEEK;
        }
        if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
            overflow = WEEKDAY;
        }

        getParsingFlags(m).overflow = overflow;
    }

    return m;
}

// Pick the first defined of two or three arguments.
function defaults(a, b, c) {
    if (a != null) {
        return a;
    }
    if (b != null) {
        return b;
    }
    return c;
}

function currentDateArray(config) {
    // hooks is actually the exported moment object
    var nowValue = new Date(hooks.now());
    if (config._useUTC) {
        return [nowValue.getUTCFullYear(), nowValue.getUTCMonth(), nowValue.getUTCDate()];
    }
    return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
}

// convert an array to a date.
// the array should mirror the parameters below
// note: all values past the year are optional and will default to the lowest possible value.
// [year, month, day , hour, minute, second, millisecond]
function configFromArray (config) {
    var i, date, input = [], currentDate, expectedWeekday, yearToUse;

    if (config._d) {
        return;
    }

    currentDate = currentDateArray(config);

    //compute day of the year from weeks and weekdays
    if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
        dayOfYearFromWeekInfo(config);
    }

    //if the day of the year is set, figure out what it is
    if (config._dayOfYear != null) {
        yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);

        if (config._dayOfYear > daysInYear(yearToUse) || config._dayOfYear === 0) {
            getParsingFlags(config)._overflowDayOfYear = true;
        }

        date = createUTCDate(yearToUse, 0, config._dayOfYear);
        config._a[MONTH] = date.getUTCMonth();
        config._a[DATE] = date.getUTCDate();
    }

    // Default to current date.
    // * if no year, month, day of month are given, default to today
    // * if day of month is given, default month and year
    // * if month is given, default only year
    // * if year is given, don't default anything
    for (i = 0; i < 3 && config._a[i] == null; ++i) {
        config._a[i] = input[i] = currentDate[i];
    }

    // Zero out whatever was not defaulted, including time
    for (; i < 7; i++) {
        config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i];
    }

    // Check for 24:00:00.000
    if (config._a[HOUR] === 24 &&
            config._a[MINUTE] === 0 &&
            config._a[SECOND] === 0 &&
            config._a[MILLISECOND] === 0) {
        config._nextDay = true;
        config._a[HOUR] = 0;
    }

    config._d = (config._useUTC ? createUTCDate : createDate).apply(null, input);
    expectedWeekday = config._useUTC ? config._d.getUTCDay() : config._d.getDay();

    // Apply timezone offset from input. The actual utcOffset can be changed
    // with parseZone.
    if (config._tzm != null) {
        config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
    }

    if (config._nextDay) {
        config._a[HOUR] = 24;
    }

    // check for mismatching day of week
    if (config._w && typeof config._w.d !== 'undefined' && config._w.d !== expectedWeekday) {
        getParsingFlags(config).weekdayMismatch = true;
    }
}

function dayOfYearFromWeekInfo(config) {
    var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow;

    w = config._w;
    if (w.GG != null || w.W != null || w.E != null) {
        dow = 1;
        doy = 4;

        // TODO: We need to take the current isoWeekYear, but that depends on
        // how we interpret now (local, utc, fixed offset). So create
        // a now version of current config (take local/utc/offset flags, and
        // create now).
        weekYear = defaults(w.GG, config._a[YEAR], weekOfYear(createLocal(), 1, 4).year);
        week = defaults(w.W, 1);
        weekday = defaults(w.E, 1);
        if (weekday < 1 || weekday > 7) {
            weekdayOverflow = true;
        }
    } else {
        dow = config._locale._week.dow;
        doy = config._locale._week.doy;

        var curWeek = weekOfYear(createLocal(), dow, doy);

        weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);

        // Default to current week.
        week = defaults(w.w, curWeek.week);

        if (w.d != null) {
            // weekday -- low day numbers are considered next week
            weekday = w.d;
            if (weekday < 0 || weekday > 6) {
                weekdayOverflow = true;
            }
        } else if (w.e != null) {
            // local weekday -- counting starts from begining of week
            weekday = w.e + dow;
            if (w.e < 0 || w.e > 6) {
                weekdayOverflow = true;
            }
        } else {
            // default to begining of week
            weekday = dow;
        }
    }
    if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
        getParsingFlags(config)._overflowWeeks = true;
    } else if (weekdayOverflow != null) {
        getParsingFlags(config)._overflowWeekday = true;
    } else {
        temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
        config._a[YEAR] = temp.year;
        config._dayOfYear = temp.dayOfYear;
    }
}

// iso 8601 regex
// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
var extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
var basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;

var tzRegex = /Z|[+-]\d\d(?::?\d\d)?/;

var isoDates = [
    ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
    ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
    ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
    ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
    ['YYYY-DDD', /\d{4}-\d{3}/],
    ['YYYY-MM', /\d{4}-\d\d/, false],
    ['YYYYYYMMDD', /[+-]\d{10}/],
    ['YYYYMMDD', /\d{8}/],
    // YYYYMM is NOT allowed by the standard
    ['GGGG[W]WWE', /\d{4}W\d{3}/],
    ['GGGG[W]WW', /\d{4}W\d{2}/, false],
    ['YYYYDDD', /\d{7}/]
];

// iso time formats and regexes
var isoTimes = [
    ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
    ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
    ['HH:mm:ss', /\d\d:\d\d:\d\d/],
    ['HH:mm', /\d\d:\d\d/],
    ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
    ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
    ['HHmmss', /\d\d\d\d\d\d/],
    ['HHmm', /\d\d\d\d/],
    ['HH', /\d\d/]
];

var aspNetJsonRegex = /^\/?Date\((\-?\d+)/i;

// date from iso format
function configFromISO(config) {
    var i, l,
        string = config._i,
        match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
        allowTime, dateFormat, timeFormat, tzFormat;

    if (match) {
        getParsingFlags(config).iso = true;

        for (i = 0, l = isoDates.length; i < l; i++) {
            if (isoDates[i][1].exec(match[1])) {
                dateFormat = isoDates[i][0];
                allowTime = isoDates[i][2] !== false;
                break;
            }
        }
        if (dateFormat == null) {
            config._isValid = false;
            return;
        }
        if (match[3]) {
            for (i = 0, l = isoTimes.length; i < l; i++) {
                if (isoTimes[i][1].exec(match[3])) {
                    // match[2] should be 'T' or space
                    timeFormat = (match[2] || ' ') + isoTimes[i][0];
                    break;
                }
            }
            if (timeFormat == null) {
                config._isValid = false;
                return;
            }
        }
        if (!allowTime && timeFormat != null) {
            config._isValid = false;
            return;
        }
        if (match[4]) {
            if (tzRegex.exec(match[4])) {
                tzFormat = 'Z';
            } else {
                config._isValid = false;
                return;
            }
        }
        config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
        configFromStringAndFormat(config);
    } else {
        config._isValid = false;
    }
}

// RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
var rfc2822 = /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/;

function extractFromRFC2822Strings(yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr) {
    var result = [
        untruncateYear(yearStr),
        defaultLocaleMonthsShort.indexOf(monthStr),
        parseInt(dayStr, 10),
        parseInt(hourStr, 10),
        parseInt(minuteStr, 10)
    ];

    if (secondStr) {
        result.push(parseInt(secondStr, 10));
    }

    return result;
}

function untruncateYear(yearStr) {
    var year = parseInt(yearStr, 10);
    if (year <= 49) {
        return 2000 + year;
    } else if (year <= 999) {
        return 1900 + year;
    }
    return year;
}

function preprocessRFC2822(s) {
    // Remove comments and folding whitespace and replace multiple-spaces with a single space
    return s.replace(/\([^)]*\)|[\n\t]/g, ' ').replace(/(\s\s+)/g, ' ').trim();
}

function checkWeekday(weekdayStr, parsedInput, config) {
    if (weekdayStr) {
        // TODO: Replace the vanilla JS Date object with an indepentent day-of-week check.
        var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
            weekdayActual = new Date(parsedInput[0], parsedInput[1], parsedInput[2]).getDay();
        if (weekdayProvided !== weekdayActual) {
            getParsingFlags(config).weekdayMismatch = true;
            config._isValid = false;
            return false;
        }
    }
    return true;
}

var obsOffsets = {
    UT: 0,
    GMT: 0,
    EDT: -4 * 60,
    EST: -5 * 60,
    CDT: -5 * 60,
    CST: -6 * 60,
    MDT: -6 * 60,
    MST: -7 * 60,
    PDT: -7 * 60,
    PST: -8 * 60
};

function calculateOffset(obsOffset, militaryOffset, numOffset) {
    if (obsOffset) {
        return obsOffsets[obsOffset];
    } else if (militaryOffset) {
        // the only allowed military tz is Z
        return 0;
    } else {
        var hm = parseInt(numOffset, 10);
        var m = hm % 100, h = (hm - m) / 100;
        return h * 60 + m;
    }
}

// date and time from ref 2822 format
function configFromRFC2822(config) {
    var match = rfc2822.exec(preprocessRFC2822(config._i));
    if (match) {
        var parsedArray = extractFromRFC2822Strings(match[4], match[3], match[2], match[5], match[6], match[7]);
        if (!checkWeekday(match[1], parsedArray, config)) {
            return;
        }

        config._a = parsedArray;
        config._tzm = calculateOffset(match[8], match[9], match[10]);

        config._d = createUTCDate.apply(null, config._a);
        config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);

        getParsingFlags(config).rfc2822 = true;
    } else {
        config._isValid = false;
    }
}

// date from iso format or fallback
function configFromString(config) {
    var matched = aspNetJsonRegex.exec(config._i);

    if (matched !== null) {
        config._d = new Date(+matched[1]);
        return;
    }

    configFromISO(config);
    if (config._isValid === false) {
        delete config._isValid;
    } else {
        return;
    }

    configFromRFC2822(config);
    if (config._isValid === false) {
        delete config._isValid;
    } else {
        return;
    }

    // Final attempt, use Input Fallback
    hooks.createFromInputFallback(config);
}

hooks.createFromInputFallback = deprecate(
    'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
    'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
    'discouraged and will be removed in an upcoming major release. Please refer to ' +
    'http://momentjs.com/guides/#/warnings/js-date/ for more info.',
    function (config) {
        config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
    }
);

// constant that refers to the ISO standard
hooks.ISO_8601 = function () {};

// constant that refers to the RFC 2822 form
hooks.RFC_2822 = function () {};

// date from string and format string
function configFromStringAndFormat(config) {
    // TODO: Move this to another part of the creation flow to prevent circular deps
    if (config._f === hooks.ISO_8601) {
        configFromISO(config);
        return;
    }
    if (config._f === hooks.RFC_2822) {
        configFromRFC2822(config);
        return;
    }
    config._a = [];
    getParsingFlags(config).empty = true;

    // This array is used to make a Date, either with `new Date` or `Date.UTC`
    var string = '' + config._i,
        i, parsedInput, tokens, token, skipped,
        stringLength = string.length,
        totalParsedInputLength = 0;

    tokens = expandFormat(config._f, config._locale).match(formattingTokens) || [];

    for (i = 0; i < tokens.length; i++) {
        token = tokens[i];
        parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0];
        // console.log('token', token, 'parsedInput', parsedInput,
        //         'regex', getParseRegexForToken(token, config));
        if (parsedInput) {
            skipped = string.substr(0, string.indexOf(parsedInput));
            if (skipped.length > 0) {
                getParsingFlags(config).unusedInput.push(skipped);
            }
            string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
            totalParsedInputLength += parsedInput.length;
        }
        // don't parse if it's not a known token
        if (formatTokenFunctions[token]) {
            if (parsedInput) {
                getParsingFlags(config).empty = false;
            }
            else {
                getParsingFlags(config).unusedTokens.push(token);
            }
            addTimeToArrayFromToken(token, parsedInput, config);
        }
        else if (config._strict && !parsedInput) {
            getParsingFlags(config).unusedTokens.push(token);
        }
    }

    // add remaining unparsed input length to the string
    getParsingFlags(config).charsLeftOver = stringLength - totalParsedInputLength;
    if (string.length > 0) {
        getParsingFlags(config).unusedInput.push(string);
    }

    // clear _12h flag if hour is <= 12
    if (config._a[HOUR] <= 12 &&
        getParsingFlags(config).bigHour === true &&
        config._a[HOUR] > 0) {
        getParsingFlags(config).bigHour = undefined;
    }

    getParsingFlags(config).parsedDateParts = config._a.slice(0);
    getParsingFlags(config).meridiem = config._meridiem;
    // handle meridiem
    config._a[HOUR] = meridiemFixWrap(config._locale, config._a[HOUR], config._meridiem);

    configFromArray(config);
    checkOverflow(config);
}


function meridiemFixWrap (locale, hour, meridiem) {
    var isPm;

    if (meridiem == null) {
        // nothing to do
        return hour;
    }
    if (locale.meridiemHour != null) {
        return locale.meridiemHour(hour, meridiem);
    } else if (locale.isPM != null) {
        // Fallback
        isPm = locale.isPM(meridiem);
        if (isPm && hour < 12) {
            hour += 12;
        }
        if (!isPm && hour === 12) {
            hour = 0;
        }
        return hour;
    } else {
        // this is not supposed to happen
        return hour;
    }
}

// date from string and array of format strings
function configFromStringAndArray(config) {
    var tempConfig,
        bestMoment,

        scoreToBeat,
        i,
        currentScore;

    if (config._f.length === 0) {
        getParsingFlags(config).invalidFormat = true;
        config._d = new Date(NaN);
        return;
    }

    for (i = 0; i < config._f.length; i++) {
        currentScore = 0;
        tempConfig = copyConfig({}, config);
        if (config._useUTC != null) {
            tempConfig._useUTC = config._useUTC;
        }
        tempConfig._f = config._f[i];
        configFromStringAndFormat(tempConfig);

        if (!isValid(tempConfig)) {
            continue;
        }

        // if there is any input that was not parsed add a penalty for that format
        currentScore += getParsingFlags(tempConfig).charsLeftOver;

        //or tokens
        currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;

        getParsingFlags(tempConfig).score = currentScore;

        if (scoreToBeat == null || currentScore < scoreToBeat) {
            scoreToBeat = currentScore;
            bestMoment = tempConfig;
        }
    }

    extend(config, bestMoment || tempConfig);
}

function configFromObject(config) {
    if (config._d) {
        return;
    }

    var i = normalizeObjectUnits(config._i);
    config._a = map([i.year, i.month, i.day || i.date, i.hour, i.minute, i.second, i.millisecond], function (obj) {
        return obj && parseInt(obj, 10);
    });

    configFromArray(config);
}

function createFromConfig (config) {
    var res = new Moment(checkOverflow(prepareConfig(config)));
    if (res._nextDay) {
        // Adding is smart enough around DST
        res.add(1, 'd');
        res._nextDay = undefined;
    }

    return res;
}

function prepareConfig (config) {
    var input = config._i,
        format = config._f;

    config._locale = config._locale || getLocale(config._l);

    if (input === null || (format === undefined && input === '')) {
        return createInvalid({nullInput: true});
    }

    if (typeof input === 'string') {
        config._i = input = config._locale.preparse(input);
    }

    if (isMoment(input)) {
        return new Moment(checkOverflow(input));
    } else if (isDate(input)) {
        config._d = input;
    } else if (isArray(format)) {
        configFromStringAndArray(config);
    } else if (format) {
        configFromStringAndFormat(config);
    }  else {
        configFromInput(config);
    }

    if (!isValid(config)) {
        config._d = null;
    }

    return config;
}

function configFromInput(config) {
    var input = config._i;
    if (isUndefined(input)) {
        config._d = new Date(hooks.now());
    } else if (isDate(input)) {
        config._d = new Date(input.valueOf());
    } else if (typeof input === 'string') {
        configFromString(config);
    } else if (isArray(input)) {
        config._a = map(input.slice(0), function (obj) {
            return parseInt(obj, 10);
        });
        configFromArray(config);
    } else if (isObject(input)) {
        configFromObject(config);
    } else if (isNumber(input)) {
        // from milliseconds
        config._d = new Date(input);
    } else {
        hooks.createFromInputFallback(config);
    }
}

function createLocalOrUTC (input, format, locale, strict, isUTC) {
    var c = {};

    if (locale === true || locale === false) {
        strict = locale;
        locale = undefined;
    }

    if ((isObject(input) && isObjectEmpty(input)) ||
            (isArray(input) && input.length === 0)) {
        input = undefined;
    }
    // object construction must be done this way.
    // https://github.com/moment/moment/issues/1423
    c._isAMomentObject = true;
    c._useUTC = c._isUTC = isUTC;
    c._l = locale;
    c._i = input;
    c._f = format;
    c._strict = strict;

    return createFromConfig(c);
}

function createLocal (input, format, locale, strict) {
    return createLocalOrUTC(input, format, locale, strict, false);
}

var prototypeMin = deprecate(
    'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
    function () {
        var other = createLocal.apply(null, arguments);
        if (this.isValid() && other.isValid()) {
            return other < this ? this : other;
        } else {
            return createInvalid();
        }
    }
);

var prototypeMax = deprecate(
    'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
    function () {
        var other = createLocal.apply(null, arguments);
        if (this.isValid() && other.isValid()) {
            return other > this ? this : other;
        } else {
            return createInvalid();
        }
    }
);

// Pick a moment m from moments so that m[fn](other) is true for all
// other. This relies on the function fn to be transitive.
//
// moments should either be an array of moment objects or an array, whose
// first element is an array of moment objects.
function pickBy(fn, moments) {
    var res, i;
    if (moments.length === 1 && isArray(moments[0])) {
        moments = moments[0];
    }
    if (!moments.length) {
        return createLocal();
    }
    res = moments[0];
    for (i = 1; i < moments.length; ++i) {
        if (!moments[i].isValid() || moments[i][fn](res)) {
            res = moments[i];
        }
    }
    return res;
}

// TODO: Use [].sort instead?
function min () {
    var args = [].slice.call(arguments, 0);

    return pickBy('isBefore', args);
}

function max () {
    var args = [].slice.call(arguments, 0);

    return pickBy('isAfter', args);
}

var now = function () {
    return Date.now ? Date.now() : +(new Date());
};

var ordering = ['year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', 'millisecond'];

function isDurationValid(m) {
    for (var key in m) {
        if (!(indexOf.call(ordering, key) !== -1 && (m[key] == null || !isNaN(m[key])))) {
            return false;
        }
    }

    var unitHasDecimal = false;
    for (var i = 0; i < ordering.length; ++i) {
        if (m[ordering[i]]) {
            if (unitHasDecimal) {
                return false; // only allow non-integers for smallest unit
            }
            if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
                unitHasDecimal = true;
            }
        }
    }

    return true;
}

function isValid$1() {
    return this._isValid;
}

function createInvalid$1() {
    return createDuration(NaN);
}

function Duration (duration) {
    var normalizedInput = normalizeObjectUnits(duration),
        years = normalizedInput.year || 0,
        quarters = normalizedInput.quarter || 0,
        months = normalizedInput.month || 0,
        weeks = normalizedInput.week || 0,
        days = normalizedInput.day || 0,
        hours = normalizedInput.hour || 0,
        minutes = normalizedInput.minute || 0,
        seconds = normalizedInput.second || 0,
        milliseconds = normalizedInput.millisecond || 0;

    this._isValid = isDurationValid(normalizedInput);

    // representation for dateAddRemove
    this._milliseconds = +milliseconds +
        seconds * 1e3 + // 1000
        minutes * 6e4 + // 1000 * 60
        hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
    // Because of dateAddRemove treats 24 hours as different from a
    // day when working around DST, we need to store them separately
    this._days = +days +
        weeks * 7;
    // It is impossible to translate months into days without knowing
    // which months you are are talking about, so we have to store
    // it separately.
    this._months = +months +
        quarters * 3 +
        years * 12;

    this._data = {};

    this._locale = getLocale();

    this._bubble();
}

function isDuration (obj) {
    return obj instanceof Duration;
}

function absRound (number) {
    if (number < 0) {
        return Math.round(-1 * number) * -1;
    } else {
        return Math.round(number);
    }
}

// FORMATTING

function offset (token, separator) {
    addFormatToken(token, 0, 0, function () {
        var offset = this.utcOffset();
        var sign = '+';
        if (offset < 0) {
            offset = -offset;
            sign = '-';
        }
        return sign + zeroFill(~~(offset / 60), 2) + separator + zeroFill(~~(offset) % 60, 2);
    });
}

offset('Z', ':');
offset('ZZ', '');

// PARSING

addRegexToken('Z',  matchShortOffset);
addRegexToken('ZZ', matchShortOffset);
addParseToken(['Z', 'ZZ'], function (input, array, config) {
    config._useUTC = true;
    config._tzm = offsetFromString(matchShortOffset, input);
});

// HELPERS

// timezone chunker
// '+10:00' > ['10',  '00']
// '-1530'  > ['-15', '30']
var chunkOffset = /([\+\-]|\d\d)/gi;

function offsetFromString(matcher, string) {
    var matches = (string || '').match(matcher);

    if (matches === null) {
        return null;
    }

    var chunk   = matches[matches.length - 1] || [];
    var parts   = (chunk + '').match(chunkOffset) || ['-', 0, 0];
    var minutes = +(parts[1] * 60) + toInt(parts[2]);

    return minutes === 0 ?
      0 :
      parts[0] === '+' ? minutes : -minutes;
}

// Return a moment from input, that is local/utc/zone equivalent to model.
function cloneWithOffset(input, model) {
    var res, diff;
    if (model._isUTC) {
        res = model.clone();
        diff = (isMoment(input) || isDate(input) ? input.valueOf() : createLocal(input).valueOf()) - res.valueOf();
        // Use low-level api, because this fn is low-level api.
        res._d.setTime(res._d.valueOf() + diff);
        hooks.updateOffset(res, false);
        return res;
    } else {
        return createLocal(input).local();
    }
}

function getDateOffset (m) {
    // On Firefox.24 Date#getTimezoneOffset returns a floating point.
    // https://github.com/moment/moment/pull/1871
    return -Math.round(m._d.getTimezoneOffset() / 15) * 15;
}

// HOOKS

// This function will be called whenever a moment is mutated.
// It is intended to keep the offset in sync with the timezone.
hooks.updateOffset = function () {};

// MOMENTS

// keepLocalTime = true means only change the timezone, without
// affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
// 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
// +0200, so we adjust the time as needed, to be valid.
//
// Keeping the time actually adds/subtracts (one hour)
// from the actual represented time. That is why we call updateOffset
// a second time. In case it wants us to change the offset again
// _changeInProgress == true case, then we have to adjust, because
// there is no such time in the given timezone.
function getSetOffset (input, keepLocalTime, keepMinutes) {
    var offset = this._offset || 0,
        localAdjust;
    if (!this.isValid()) {
        return input != null ? this : NaN;
    }
    if (input != null) {
        if (typeof input === 'string') {
            input = offsetFromString(matchShortOffset, input);
            if (input === null) {
                return this;
            }
        } else if (Math.abs(input) < 16 && !keepMinutes) {
            input = input * 60;
        }
        if (!this._isUTC && keepLocalTime) {
            localAdjust = getDateOffset(this);
        }
        this._offset = input;
        this._isUTC = true;
        if (localAdjust != null) {
            this.add(localAdjust, 'm');
        }
        if (offset !== input) {
            if (!keepLocalTime || this._changeInProgress) {
                addSubtract(this, createDuration(input - offset, 'm'), 1, false);
            } else if (!this._changeInProgress) {
                this._changeInProgress = true;
                hooks.updateOffset(this, true);
                this._changeInProgress = null;
            }
        }
        return this;
    } else {
        return this._isUTC ? offset : getDateOffset(this);
    }
}

function getSetZone (input, keepLocalTime) {
    if (input != null) {
        if (typeof input !== 'string') {
            input = -input;
        }

        this.utcOffset(input, keepLocalTime);

        return this;
    } else {
        return -this.utcOffset();
    }
}

function setOffsetToUTC (keepLocalTime) {
    return this.utcOffset(0, keepLocalTime);
}

function setOffsetToLocal (keepLocalTime) {
    if (this._isUTC) {
        this.utcOffset(0, keepLocalTime);
        this._isUTC = false;

        if (keepLocalTime) {
            this.subtract(getDateOffset(this), 'm');
        }
    }
    return this;
}

function setOffsetToParsedOffset () {
    if (this._tzm != null) {
        this.utcOffset(this._tzm, false, true);
    } else if (typeof this._i === 'string') {
        var tZone = offsetFromString(matchOffset, this._i);
        if (tZone != null) {
            this.utcOffset(tZone);
        }
        else {
            this.utcOffset(0, true);
        }
    }
    return this;
}

function hasAlignedHourOffset (input) {
    if (!this.isValid()) {
        return false;
    }
    input = input ? createLocal(input).utcOffset() : 0;

    return (this.utcOffset() - input) % 60 === 0;
}

function isDaylightSavingTime () {
    return (
        this.utcOffset() > this.clone().month(0).utcOffset() ||
        this.utcOffset() > this.clone().month(5).utcOffset()
    );
}

function isDaylightSavingTimeShifted () {
    if (!isUndefined(this._isDSTShifted)) {
        return this._isDSTShifted;
    }

    var c = {};

    copyConfig(c, this);
    c = prepareConfig(c);

    if (c._a) {
        var other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
        this._isDSTShifted = this.isValid() &&
            compareArrays(c._a, other.toArray()) > 0;
    } else {
        this._isDSTShifted = false;
    }

    return this._isDSTShifted;
}

function isLocal () {
    return this.isValid() ? !this._isUTC : false;
}

function isUtcOffset () {
    return this.isValid() ? this._isUTC : false;
}

function isUtc () {
    return this.isValid() ? this._isUTC && this._offset === 0 : false;
}

// ASP.NET json date format regex
var aspNetRegex = /^(\-|\+)?(?:(\d*)[. ])?(\d+)\:(\d+)(?:\:(\d+)(\.\d*)?)?$/;

// from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
// somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
// and further modified to allow for strings containing both week and day
var isoRegex = /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;

function createDuration (input, key) {
    var duration = input,
        // matching against regexp is expensive, do it on demand
        match = null,
        sign,
        ret,
        diffRes;

    if (isDuration(input)) {
        duration = {
            ms : input._milliseconds,
            d  : input._days,
            M  : input._months
        };
    } else if (isNumber(input)) {
        duration = {};
        if (key) {
            duration[key] = input;
        } else {
            duration.milliseconds = input;
        }
    } else if (!!(match = aspNetRegex.exec(input))) {
        sign = (match[1] === '-') ? -1 : 1;
        duration = {
            y  : 0,
            d  : toInt(match[DATE])                         * sign,
            h  : toInt(match[HOUR])                         * sign,
            m  : toInt(match[MINUTE])                       * sign,
            s  : toInt(match[SECOND])                       * sign,
            ms : toInt(absRound(match[MILLISECOND] * 1000)) * sign // the millisecond decimal point is included in the match
        };
    } else if (!!(match = isoRegex.exec(input))) {
        sign = (match[1] === '-') ? -1 : (match[1] === '+') ? 1 : 1;
        duration = {
            y : parseIso(match[2], sign),
            M : parseIso(match[3], sign),
            w : parseIso(match[4], sign),
            d : parseIso(match[5], sign),
            h : parseIso(match[6], sign),
            m : parseIso(match[7], sign),
            s : parseIso(match[8], sign)
        };
    } else if (duration == null) {// checks for null or undefined
        duration = {};
    } else if (typeof duration === 'object' && ('from' in duration || 'to' in duration)) {
        diffRes = momentsDifference(createLocal(duration.from), createLocal(duration.to));

        duration = {};
        duration.ms = diffRes.milliseconds;
        duration.M = diffRes.months;
    }

    ret = new Duration(duration);

    if (isDuration(input) && hasOwnProp(input, '_locale')) {
        ret._locale = input._locale;
    }

    return ret;
}

createDuration.fn = Duration.prototype;
createDuration.invalid = createInvalid$1;

function parseIso (inp, sign) {
    // We'd normally use ~~inp for this, but unfortunately it also
    // converts floats to ints.
    // inp may be undefined, so careful calling replace on it.
    var res = inp && parseFloat(inp.replace(',', '.'));
    // apply sign while we're at it
    return (isNaN(res) ? 0 : res) * sign;
}

function positiveMomentsDifference(base, other) {
    var res = {milliseconds: 0, months: 0};

    res.months = other.month() - base.month() +
        (other.year() - base.year()) * 12;
    if (base.clone().add(res.months, 'M').isAfter(other)) {
        --res.months;
    }

    res.milliseconds = +other - +(base.clone().add(res.months, 'M'));

    return res;
}

function momentsDifference(base, other) {
    var res;
    if (!(base.isValid() && other.isValid())) {
        return {milliseconds: 0, months: 0};
    }

    other = cloneWithOffset(other, base);
    if (base.isBefore(other)) {
        res = positiveMomentsDifference(base, other);
    } else {
        res = positiveMomentsDifference(other, base);
        res.milliseconds = -res.milliseconds;
        res.months = -res.months;
    }

    return res;
}

// TODO: remove 'name' arg after deprecation is removed
function createAdder(direction, name) {
    return function (val, period) {
        var dur, tmp;
        //invert the arguments, but complain about it
        if (period !== null && !isNaN(+period)) {
            deprecateSimple(name, 'moment().' + name  + '(period, number) is deprecated. Please use moment().' + name + '(number, period). ' +
            'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.');
            tmp = val; val = period; period = tmp;
        }

        val = typeof val === 'string' ? +val : val;
        dur = createDuration(val, period);
        addSubtract(this, dur, direction);
        return this;
    };
}

function addSubtract (mom, duration, isAdding, updateOffset) {
    var milliseconds = duration._milliseconds,
        days = absRound(duration._days),
        months = absRound(duration._months);

    if (!mom.isValid()) {
        // No op
        return;
    }

    updateOffset = updateOffset == null ? true : updateOffset;

    if (months) {
        setMonth(mom, get(mom, 'Month') + months * isAdding);
    }
    if (days) {
        set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
    }
    if (milliseconds) {
        mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
    }
    if (updateOffset) {
        hooks.updateOffset(mom, days || months);
    }
}

var add      = createAdder(1, 'add');
var subtract = createAdder(-1, 'subtract');

function getCalendarFormat(myMoment, now) {
    var diff = myMoment.diff(now, 'days', true);
    return diff < -6 ? 'sameElse' :
            diff < -1 ? 'lastWeek' :
            diff < 0 ? 'lastDay' :
            diff < 1 ? 'sameDay' :
            diff < 2 ? 'nextDay' :
            diff < 7 ? 'nextWeek' : 'sameElse';
}

function calendar$1 (time, formats) {
    // We want to compare the start of today, vs this.
    // Getting start-of-today depends on whether we're local/utc/offset or not.
    var now = time || createLocal(),
        sod = cloneWithOffset(now, this).startOf('day'),
        format = hooks.calendarFormat(this, sod) || 'sameElse';

    var output = formats && (isFunction(formats[format]) ? formats[format].call(this, now) : formats[format]);

    return this.format(output || this.localeData().calendar(format, this, createLocal(now)));
}

function clone () {
    return new Moment(this);
}

function isAfter (input, units) {
    var localInput = isMoment(input) ? input : createLocal(input);
    if (!(this.isValid() && localInput.isValid())) {
        return false;
    }
    units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
    if (units === 'millisecond') {
        return this.valueOf() > localInput.valueOf();
    } else {
        return localInput.valueOf() < this.clone().startOf(units).valueOf();
    }
}

function isBefore (input, units) {
    var localInput = isMoment(input) ? input : createLocal(input);
    if (!(this.isValid() && localInput.isValid())) {
        return false;
    }
    units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
    if (units === 'millisecond') {
        return this.valueOf() < localInput.valueOf();
    } else {
        return this.clone().endOf(units).valueOf() < localInput.valueOf();
    }
}

function isBetween (from, to, units, inclusivity) {
    inclusivity = inclusivity || '()';
    return (inclusivity[0] === '(' ? this.isAfter(from, units) : !this.isBefore(from, units)) &&
        (inclusivity[1] === ')' ? this.isBefore(to, units) : !this.isAfter(to, units));
}

function isSame (input, units) {
    var localInput = isMoment(input) ? input : createLocal(input),
        inputMs;
    if (!(this.isValid() && localInput.isValid())) {
        return false;
    }
    units = normalizeUnits(units || 'millisecond');
    if (units === 'millisecond') {
        return this.valueOf() === localInput.valueOf();
    } else {
        inputMs = localInput.valueOf();
        return this.clone().startOf(units).valueOf() <= inputMs && inputMs <= this.clone().endOf(units).valueOf();
    }
}

function isSameOrAfter (input, units) {
    return this.isSame(input, units) || this.isAfter(input,units);
}

function isSameOrBefore (input, units) {
    return this.isSame(input, units) || this.isBefore(input,units);
}

function diff (input, units, asFloat) {
    var that,
        zoneDelta,
        delta, output;

    if (!this.isValid()) {
        return NaN;
    }

    that = cloneWithOffset(input, this);

    if (!that.isValid()) {
        return NaN;
    }

    zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;

    units = normalizeUnits(units);

    switch (units) {
        case 'year': output = monthDiff(this, that) / 12; break;
        case 'month': output = monthDiff(this, that); break;
        case 'quarter': output = monthDiff(this, that) / 3; break;
        case 'second': output = (this - that) / 1e3; break; // 1000
        case 'minute': output = (this - that) / 6e4; break; // 1000 * 60
        case 'hour': output = (this - that) / 36e5; break; // 1000 * 60 * 60
        case 'day': output = (this - that - zoneDelta) / 864e5; break; // 1000 * 60 * 60 * 24, negate dst
        case 'week': output = (this - that - zoneDelta) / 6048e5; break; // 1000 * 60 * 60 * 24 * 7, negate dst
        default: output = this - that;
    }

    return asFloat ? output : absFloor(output);
}

function monthDiff (a, b) {
    // difference in months
    var wholeMonthDiff = ((b.year() - a.year()) * 12) + (b.month() - a.month()),
        // b is in (anchor - 1 month, anchor + 1 month)
        anchor = a.clone().add(wholeMonthDiff, 'months'),
        anchor2, adjust;

    if (b - anchor < 0) {
        anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
        // linear across the month
        adjust = (b - anchor) / (anchor - anchor2);
    } else {
        anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
        // linear across the month
        adjust = (b - anchor) / (anchor2 - anchor);
    }

    //check for negative zero, return zero if negative zero
    return -(wholeMonthDiff + adjust) || 0;
}

hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';

function toString () {
    return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
}

function toISOString() {
    if (!this.isValid()) {
        return null;
    }
    var m = this.clone().utc();
    if (m.year() < 0 || m.year() > 9999) {
        return formatMoment(m, 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
    }
    if (isFunction(Date.prototype.toISOString)) {
        // native implementation is ~50x faster, use it when we can
        return this.toDate().toISOString();
    }
    return formatMoment(m, 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
}

/**
 * Return a human readable representation of a moment that can
 * also be evaluated to get a new moment which is the same
 *
 * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
 */
function inspect () {
    if (!this.isValid()) {
        return 'moment.invalid(/* ' + this._i + ' */)';
    }
    var func = 'moment';
    var zone = '';
    if (!this.isLocal()) {
        func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
        zone = 'Z';
    }
    var prefix = '[' + func + '("]';
    var year = (0 <= this.year() && this.year() <= 9999) ? 'YYYY' : 'YYYYYY';
    var datetime = '-MM-DD[T]HH:mm:ss.SSS';
    var suffix = zone + '[")]';

    return this.format(prefix + year + datetime + suffix);
}

function format (inputString) {
    if (!inputString) {
        inputString = this.isUtc() ? hooks.defaultFormatUtc : hooks.defaultFormat;
    }
    var output = formatMoment(this, inputString);
    return this.localeData().postformat(output);
}

function from (time, withoutSuffix) {
    if (this.isValid() &&
            ((isMoment(time) && time.isValid()) ||
             createLocal(time).isValid())) {
        return createDuration({to: this, from: time}).locale(this.locale()).humanize(!withoutSuffix);
    } else {
        return this.localeData().invalidDate();
    }
}

function fromNow (withoutSuffix) {
    return this.from(createLocal(), withoutSuffix);
}

function to (time, withoutSuffix) {
    if (this.isValid() &&
            ((isMoment(time) && time.isValid()) ||
             createLocal(time).isValid())) {
        return createDuration({from: this, to: time}).locale(this.locale()).humanize(!withoutSuffix);
    } else {
        return this.localeData().invalidDate();
    }
}

function toNow (withoutSuffix) {
    return this.to(createLocal(), withoutSuffix);
}

// If passed a locale key, it will set the locale for this
// instance.  Otherwise, it will return the locale configuration
// variables for this instance.
function locale (key) {
    var newLocaleData;

    if (key === undefined) {
        return this._locale._abbr;
    } else {
        newLocaleData = getLocale(key);
        if (newLocaleData != null) {
            this._locale = newLocaleData;
        }
        return this;
    }
}

var lang = deprecate(
    'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
    function (key) {
        if (key === undefined) {
            return this.localeData();
        } else {
            return this.locale(key);
        }
    }
);

function localeData () {
    return this._locale;
}

function startOf (units) {
    units = normalizeUnits(units);
    // the following switch intentionally omits break keywords
    // to utilize falling through the cases.
    switch (units) {
        case 'year':
            this.month(0);
            /* falls through */
        case 'quarter':
        case 'month':
            this.date(1);
            /* falls through */
        case 'week':
        case 'isoWeek':
        case 'day':
        case 'date':
            this.hours(0);
            /* falls through */
        case 'hour':
            this.minutes(0);
            /* falls through */
        case 'minute':
            this.seconds(0);
            /* falls through */
        case 'second':
            this.milliseconds(0);
    }

    // weeks are a special case
    if (units === 'week') {
        this.weekday(0);
    }
    if (units === 'isoWeek') {
        this.isoWeekday(1);
    }

    // quarters are also special
    if (units === 'quarter') {
        this.month(Math.floor(this.month() / 3) * 3);
    }

    return this;
}

function endOf (units) {
    units = normalizeUnits(units);
    if (units === undefined || units === 'millisecond') {
        return this;
    }

    // 'date' is an alias for 'day', so it should be considered as such.
    if (units === 'date') {
        units = 'day';
    }

    return this.startOf(units).add(1, (units === 'isoWeek' ? 'week' : units)).subtract(1, 'ms');
}

function valueOf () {
    return this._d.valueOf() - ((this._offset || 0) * 60000);
}

function unix () {
    return Math.floor(this.valueOf() / 1000);
}

function toDate () {
    return new Date(this.valueOf());
}

function toArray () {
    var m = this;
    return [m.year(), m.month(), m.date(), m.hour(), m.minute(), m.second(), m.millisecond()];
}

function toObject () {
    var m = this;
    return {
        years: m.year(),
        months: m.month(),
        date: m.date(),
        hours: m.hours(),
        minutes: m.minutes(),
        seconds: m.seconds(),
        milliseconds: m.milliseconds()
    };
}

function toJSON () {
    // new Date(NaN).toJSON() === null
    return this.isValid() ? this.toISOString() : null;
}

function isValid$2 () {
    return isValid(this);
}

function parsingFlags () {
    return extend({}, getParsingFlags(this));
}

function invalidAt () {
    return getParsingFlags(this).overflow;
}

function creationData() {
    return {
        input: this._i,
        format: this._f,
        locale: this._locale,
        isUTC: this._isUTC,
        strict: this._strict
    };
}

// FORMATTING

addFormatToken(0, ['gg', 2], 0, function () {
    return this.weekYear() % 100;
});

addFormatToken(0, ['GG', 2], 0, function () {
    return this.isoWeekYear() % 100;
});

function addWeekYearFormatToken (token, getter) {
    addFormatToken(0, [token, token.length], 0, getter);
}

addWeekYearFormatToken('gggg',     'weekYear');
addWeekYearFormatToken('ggggg',    'weekYear');
addWeekYearFormatToken('GGGG',  'isoWeekYear');
addWeekYearFormatToken('GGGGG', 'isoWeekYear');

// ALIASES

addUnitAlias('weekYear', 'gg');
addUnitAlias('isoWeekYear', 'GG');

// PRIORITY

addUnitPriority('weekYear', 1);
addUnitPriority('isoWeekYear', 1);


// PARSING

addRegexToken('G',      matchSigned);
addRegexToken('g',      matchSigned);
addRegexToken('GG',     match1to2, match2);
addRegexToken('gg',     match1to2, match2);
addRegexToken('GGGG',   match1to4, match4);
addRegexToken('gggg',   match1to4, match4);
addRegexToken('GGGGG',  match1to6, match6);
addRegexToken('ggggg',  match1to6, match6);

addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (input, week, config, token) {
    week[token.substr(0, 2)] = toInt(input);
});

addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
    week[token] = hooks.parseTwoDigitYear(input);
});

// MOMENTS

function getSetWeekYear (input) {
    return getSetWeekYearHelper.call(this,
            input,
            this.week(),
            this.weekday(),
            this.localeData()._week.dow,
            this.localeData()._week.doy);
}

function getSetISOWeekYear (input) {
    return getSetWeekYearHelper.call(this,
            input, this.isoWeek(), this.isoWeekday(), 1, 4);
}

function getISOWeeksInYear () {
    return weeksInYear(this.year(), 1, 4);
}

function getWeeksInYear () {
    var weekInfo = this.localeData()._week;
    return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
}

function getSetWeekYearHelper(input, week, weekday, dow, doy) {
    var weeksTarget;
    if (input == null) {
        return weekOfYear(this, dow, doy).year;
    } else {
        weeksTarget = weeksInYear(input, dow, doy);
        if (week > weeksTarget) {
            week = weeksTarget;
        }
        return setWeekAll.call(this, input, week, weekday, dow, doy);
    }
}

function setWeekAll(weekYear, week, weekday, dow, doy) {
    var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
        date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);

    this.year(date.getUTCFullYear());
    this.month(date.getUTCMonth());
    this.date(date.getUTCDate());
    return this;
}

// FORMATTING

addFormatToken('Q', 0, 'Qo', 'quarter');

// ALIASES

addUnitAlias('quarter', 'Q');

// PRIORITY

addUnitPriority('quarter', 7);

// PARSING

addRegexToken('Q', match1);
addParseToken('Q', function (input, array) {
    array[MONTH] = (toInt(input) - 1) * 3;
});

// MOMENTS

function getSetQuarter (input) {
    return input == null ? Math.ceil((this.month() + 1) / 3) : this.month((input - 1) * 3 + this.month() % 3);
}

// FORMATTING

addFormatToken('D', ['DD', 2], 'Do', 'date');

// ALIASES

addUnitAlias('date', 'D');

// PRIOROITY
addUnitPriority('date', 9);

// PARSING

addRegexToken('D',  match1to2);
addRegexToken('DD', match1to2, match2);
addRegexToken('Do', function (isStrict, locale) {
    // TODO: Remove "ordinalParse" fallback in next major release.
    return isStrict ?
      (locale._dayOfMonthOrdinalParse || locale._ordinalParse) :
      locale._dayOfMonthOrdinalParseLenient;
});

addParseToken(['D', 'DD'], DATE);
addParseToken('Do', function (input, array) {
    array[DATE] = toInt(input.match(match1to2)[0]);
});

// MOMENTS

var getSetDayOfMonth = makeGetSet('Date', true);

// FORMATTING

addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');

// ALIASES

addUnitAlias('dayOfYear', 'DDD');

// PRIORITY
addUnitPriority('dayOfYear', 4);

// PARSING

addRegexToken('DDD',  match1to3);
addRegexToken('DDDD', match3);
addParseToken(['DDD', 'DDDD'], function (input, array, config) {
    config._dayOfYear = toInt(input);
});

// HELPERS

// MOMENTS

function getSetDayOfYear (input) {
    var dayOfYear = Math.round((this.clone().startOf('day') - this.clone().startOf('year')) / 864e5) + 1;
    return input == null ? dayOfYear : this.add((input - dayOfYear), 'd');
}

// FORMATTING

addFormatToken('m', ['mm', 2], 0, 'minute');

// ALIASES

addUnitAlias('minute', 'm');

// PRIORITY

addUnitPriority('minute', 14);

// PARSING

addRegexToken('m',  match1to2);
addRegexToken('mm', match1to2, match2);
addParseToken(['m', 'mm'], MINUTE);

// MOMENTS

var getSetMinute = makeGetSet('Minutes', false);

// FORMATTING

addFormatToken('s', ['ss', 2], 0, 'second');

// ALIASES

addUnitAlias('second', 's');

// PRIORITY

addUnitPriority('second', 15);

// PARSING

addRegexToken('s',  match1to2);
addRegexToken('ss', match1to2, match2);
addParseToken(['s', 'ss'], SECOND);

// MOMENTS

var getSetSecond = makeGetSet('Seconds', false);

// FORMATTING

addFormatToken('S', 0, 0, function () {
    return ~~(this.millisecond() / 100);
});

addFormatToken(0, ['SS', 2], 0, function () {
    return ~~(this.millisecond() / 10);
});

addFormatToken(0, ['SSS', 3], 0, 'millisecond');
addFormatToken(0, ['SSSS', 4], 0, function () {
    return this.millisecond() * 10;
});
addFormatToken(0, ['SSSSS', 5], 0, function () {
    return this.millisecond() * 100;
});
addFormatToken(0, ['SSSSSS', 6], 0, function () {
    return this.millisecond() * 1000;
});
addFormatToken(0, ['SSSSSSS', 7], 0, function () {
    return this.millisecond() * 10000;
});
addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
    return this.millisecond() * 100000;
});
addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
    return this.millisecond() * 1000000;
});


// ALIASES

addUnitAlias('millisecond', 'ms');

// PRIORITY

addUnitPriority('millisecond', 16);

// PARSING

addRegexToken('S',    match1to3, match1);
addRegexToken('SS',   match1to3, match2);
addRegexToken('SSS',  match1to3, match3);

var token;
for (token = 'SSSS'; token.length <= 9; token += 'S') {
    addRegexToken(token, matchUnsigned);
}

function parseMs(input, array) {
    array[MILLISECOND] = toInt(('0.' + input) * 1000);
}

for (token = 'S'; token.length <= 9; token += 'S') {
    addParseToken(token, parseMs);
}
// MOMENTS

var getSetMillisecond = makeGetSet('Milliseconds', false);

// FORMATTING

addFormatToken('z',  0, 0, 'zoneAbbr');
addFormatToken('zz', 0, 0, 'zoneName');

// MOMENTS

function getZoneAbbr () {
    return this._isUTC ? 'UTC' : '';
}

function getZoneName () {
    return this._isUTC ? 'Coordinated Universal Time' : '';
}

var proto = Moment.prototype;

proto.add               = add;
proto.calendar          = calendar$1;
proto.clone             = clone;
proto.diff              = diff;
proto.endOf             = endOf;
proto.format            = format;
proto.from              = from;
proto.fromNow           = fromNow;
proto.to                = to;
proto.toNow             = toNow;
proto.get               = stringGet;
proto.invalidAt         = invalidAt;
proto.isAfter           = isAfter;
proto.isBefore          = isBefore;
proto.isBetween         = isBetween;
proto.isSame            = isSame;
proto.isSameOrAfter     = isSameOrAfter;
proto.isSameOrBefore    = isSameOrBefore;
proto.isValid           = isValid$2;
proto.lang              = lang;
proto.locale            = locale;
proto.localeData        = localeData;
proto.max               = prototypeMax;
proto.min               = prototypeMin;
proto.parsingFlags      = parsingFlags;
proto.set               = stringSet;
proto.startOf           = startOf;
proto.subtract          = subtract;
proto.toArray           = toArray;
proto.toObject          = toObject;
proto.toDate            = toDate;
proto.toISOString       = toISOString;
proto.inspect           = inspect;
proto.toJSON            = toJSON;
proto.toString          = toString;
proto.unix              = unix;
proto.valueOf           = valueOf;
proto.creationData      = creationData;

// Year
proto.year       = getSetYear;
proto.isLeapYear = getIsLeapYear;

// Week Year
proto.weekYear    = getSetWeekYear;
proto.isoWeekYear = getSetISOWeekYear;

// Quarter
proto.quarter = proto.quarters = getSetQuarter;

// Month
proto.month       = getSetMonth;
proto.daysInMonth = getDaysInMonth;

// Week
proto.week           = proto.weeks        = getSetWeek;
proto.isoWeek        = proto.isoWeeks     = getSetISOWeek;
proto.weeksInYear    = getWeeksInYear;
proto.isoWeeksInYear = getISOWeeksInYear;

// Day
proto.date       = getSetDayOfMonth;
proto.day        = proto.days             = getSetDayOfWeek;
proto.weekday    = getSetLocaleDayOfWeek;
proto.isoWeekday = getSetISODayOfWeek;
proto.dayOfYear  = getSetDayOfYear;

// Hour
proto.hour = proto.hours = getSetHour;

// Minute
proto.minute = proto.minutes = getSetMinute;

// Second
proto.second = proto.seconds = getSetSecond;

// Millisecond
proto.millisecond = proto.milliseconds = getSetMillisecond;

// Offset
proto.utcOffset            = getSetOffset;
proto.utc                  = setOffsetToUTC;
proto.local                = setOffsetToLocal;
proto.parseZone            = setOffsetToParsedOffset;
proto.hasAlignedHourOffset = hasAlignedHourOffset;
proto.isDST                = isDaylightSavingTime;
proto.isLocal              = isLocal;
proto.isUtcOffset          = isUtcOffset;
proto.isUtc                = isUtc;
proto.isUTC                = isUtc;

// Timezone
proto.zoneAbbr = getZoneAbbr;
proto.zoneName = getZoneName;

// Deprecations
proto.dates  = deprecate('dates accessor is deprecated. Use date instead.', getSetDayOfMonth);
proto.months = deprecate('months accessor is deprecated. Use month instead', getSetMonth);
proto.years  = deprecate('years accessor is deprecated. Use year instead', getSetYear);
proto.zone   = deprecate('moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/', getSetZone);
proto.isDSTShifted = deprecate('isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information', isDaylightSavingTimeShifted);

function createUnix (input) {
    return createLocal(input * 1000);
}

function createInZone () {
    return createLocal.apply(null, arguments).parseZone();
}

function preParsePostFormat (string) {
    return string;
}

var proto$1 = Locale.prototype;

proto$1.calendar        = calendar;
proto$1.longDateFormat  = longDateFormat;
proto$1.invalidDate     = invalidDate;
proto$1.ordinal         = ordinal;
proto$1.preparse        = preParsePostFormat;
proto$1.postformat      = preParsePostFormat;
proto$1.relativeTime    = relativeTime;
proto$1.pastFuture      = pastFuture;
proto$1.set             = set;

// Month
proto$1.months            =        localeMonths;
proto$1.monthsShort       =        localeMonthsShort;
proto$1.monthsParse       =        localeMonthsParse;
proto$1.monthsRegex       = monthsRegex;
proto$1.monthsShortRegex  = monthsShortRegex;

// Week
proto$1.week = localeWeek;
proto$1.firstDayOfYear = localeFirstDayOfYear;
proto$1.firstDayOfWeek = localeFirstDayOfWeek;

// Day of Week
proto$1.weekdays       =        localeWeekdays;
proto$1.weekdaysMin    =        localeWeekdaysMin;
proto$1.weekdaysShort  =        localeWeekdaysShort;
proto$1.weekdaysParse  =        localeWeekdaysParse;

proto$1.weekdaysRegex       =        weekdaysRegex;
proto$1.weekdaysShortRegex  =        weekdaysShortRegex;
proto$1.weekdaysMinRegex    =        weekdaysMinRegex;

// Hours
proto$1.isPM = localeIsPM;
proto$1.meridiem = localeMeridiem;

function get$1 (format, index, field, setter) {
    var locale = getLocale();
    var utc = createUTC().set(setter, index);
    return locale[field](utc, format);
}

function listMonthsImpl (format, index, field) {
    if (isNumber(format)) {
        index = format;
        format = undefined;
    }

    format = format || '';

    if (index != null) {
        return get$1(format, index, field, 'month');
    }

    var i;
    var out = [];
    for (i = 0; i < 12; i++) {
        out[i] = get$1(format, i, field, 'month');
    }
    return out;
}

// ()
// (5)
// (fmt, 5)
// (fmt)
// (true)
// (true, 5)
// (true, fmt, 5)
// (true, fmt)
function listWeekdaysImpl (localeSorted, format, index, field) {
    if (typeof localeSorted === 'boolean') {
        if (isNumber(format)) {
            index = format;
            format = undefined;
        }

        format = format || '';
    } else {
        format = localeSorted;
        index = format;
        localeSorted = false;

        if (isNumber(format)) {
            index = format;
            format = undefined;
        }

        format = format || '';
    }

    var locale = getLocale(),
        shift = localeSorted ? locale._week.dow : 0;

    if (index != null) {
        return get$1(format, (index + shift) % 7, field, 'day');
    }

    var i;
    var out = [];
    for (i = 0; i < 7; i++) {
        out[i] = get$1(format, (i + shift) % 7, field, 'day');
    }
    return out;
}

function listMonths (format, index) {
    return listMonthsImpl(format, index, 'months');
}

function listMonthsShort (format, index) {
    return listMonthsImpl(format, index, 'monthsShort');
}

function listWeekdays (localeSorted, format, index) {
    return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
}

function listWeekdaysShort (localeSorted, format, index) {
    return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
}

function listWeekdaysMin (localeSorted, format, index) {
    return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
}

getSetGlobalLocale('en', {
    dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
    ordinal : function (number) {
        var b = number % 10,
            output = (toInt(number % 100 / 10) === 1) ? 'th' :
            (b === 1) ? 'st' :
            (b === 2) ? 'nd' :
            (b === 3) ? 'rd' : 'th';
        return number + output;
    }
});

// Side effect imports
hooks.lang = deprecate('moment.lang is deprecated. Use moment.locale instead.', getSetGlobalLocale);
hooks.langData = deprecate('moment.langData is deprecated. Use moment.localeData instead.', getLocale);

var mathAbs = Math.abs;

function abs () {
    var data           = this._data;

    this._milliseconds = mathAbs(this._milliseconds);
    this._days         = mathAbs(this._days);
    this._months       = mathAbs(this._months);

    data.milliseconds  = mathAbs(data.milliseconds);
    data.seconds       = mathAbs(data.seconds);
    data.minutes       = mathAbs(data.minutes);
    data.hours         = mathAbs(data.hours);
    data.months        = mathAbs(data.months);
    data.years         = mathAbs(data.years);

    return this;
}

function addSubtract$1 (duration, input, value, direction) {
    var other = createDuration(input, value);

    duration._milliseconds += direction * other._milliseconds;
    duration._days         += direction * other._days;
    duration._months       += direction * other._months;

    return duration._bubble();
}

// supports only 2.0-style add(1, 's') or add(duration)
function add$1 (input, value) {
    return addSubtract$1(this, input, value, 1);
}

// supports only 2.0-style subtract(1, 's') or subtract(duration)
function subtract$1 (input, value) {
    return addSubtract$1(this, input, value, -1);
}

function absCeil (number) {
    if (number < 0) {
        return Math.floor(number);
    } else {
        return Math.ceil(number);
    }
}

function bubble () {
    var milliseconds = this._milliseconds;
    var days         = this._days;
    var months       = this._months;
    var data         = this._data;
    var seconds, minutes, hours, years, monthsFromDays;

    // if we have a mix of positive and negative values, bubble down first
    // check: https://github.com/moment/moment/issues/2166
    if (!((milliseconds >= 0 && days >= 0 && months >= 0) ||
            (milliseconds <= 0 && days <= 0 && months <= 0))) {
        milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
        days = 0;
        months = 0;
    }

    // The following code bubbles up values, see the tests for
    // examples of what that means.
    data.milliseconds = milliseconds % 1000;

    seconds           = absFloor(milliseconds / 1000);
    data.seconds      = seconds % 60;

    minutes           = absFloor(seconds / 60);
    data.minutes      = minutes % 60;

    hours             = absFloor(minutes / 60);
    data.hours        = hours % 24;

    days += absFloor(hours / 24);

    // convert days to months
    monthsFromDays = absFloor(daysToMonths(days));
    months += monthsFromDays;
    days -= absCeil(monthsToDays(monthsFromDays));

    // 12 months -> 1 year
    years = absFloor(months / 12);
    months %= 12;

    data.days   = days;
    data.months = months;
    data.years  = years;

    return this;
}

function daysToMonths (days) {
    // 400 years have 146097 days (taking into account leap year rules)
    // 400 years have 12 months === 4800
    return days * 4800 / 146097;
}

function monthsToDays (months) {
    // the reverse of daysToMonths
    return months * 146097 / 4800;
}

function as (units) {
    if (!this.isValid()) {
        return NaN;
    }
    var days;
    var months;
    var milliseconds = this._milliseconds;

    units = normalizeUnits(units);

    if (units === 'month' || units === 'year') {
        days   = this._days   + milliseconds / 864e5;
        months = this._months + daysToMonths(days);
        return units === 'month' ? months : months / 12;
    } else {
        // handle milliseconds separately because of floating point math errors (issue #1867)
        days = this._days + Math.round(monthsToDays(this._months));
        switch (units) {
            case 'week'   : return days / 7     + milliseconds / 6048e5;
            case 'day'    : return days         + milliseconds / 864e5;
            case 'hour'   : return days * 24    + milliseconds / 36e5;
            case 'minute' : return days * 1440  + milliseconds / 6e4;
            case 'second' : return days * 86400 + milliseconds / 1000;
            // Math.floor prevents floating point math errors here
            case 'millisecond': return Math.floor(days * 864e5) + milliseconds;
            default: throw new Error('Unknown unit ' + units);
        }
    }
}

// TODO: Use this.as('ms')?
function valueOf$1 () {
    if (!this.isValid()) {
        return NaN;
    }
    return (
        this._milliseconds +
        this._days * 864e5 +
        (this._months % 12) * 2592e6 +
        toInt(this._months / 12) * 31536e6
    );
}

function makeAs (alias) {
    return function () {
        return this.as(alias);
    };
}

var asMilliseconds = makeAs('ms');
var asSeconds      = makeAs('s');
var asMinutes      = makeAs('m');
var asHours        = makeAs('h');
var asDays         = makeAs('d');
var asWeeks        = makeAs('w');
var asMonths       = makeAs('M');
var asYears        = makeAs('y');

function clone$1 () {
    return createDuration(this);
}

function get$2 (units) {
    units = normalizeUnits(units);
    return this.isValid() ? this[units + 's']() : NaN;
}

function makeGetter(name) {
    return function () {
        return this.isValid() ? this._data[name] : NaN;
    };
}

var milliseconds = makeGetter('milliseconds');
var seconds      = makeGetter('seconds');
var minutes      = makeGetter('minutes');
var hours        = makeGetter('hours');
var days         = makeGetter('days');
var months       = makeGetter('months');
var years        = makeGetter('years');

function weeks () {
    return absFloor(this.days() / 7);
}

var round = Math.round;
var thresholds = {
    ss: 44,         // a few seconds to seconds
    s : 45,         // seconds to minute
    m : 45,         // minutes to hour
    h : 22,         // hours to day
    d : 26,         // days to month
    M : 11          // months to year
};

// helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
    return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
}

function relativeTime$1 (posNegDuration, withoutSuffix, locale) {
    var duration = createDuration(posNegDuration).abs();
    var seconds  = round(duration.as('s'));
    var minutes  = round(duration.as('m'));
    var hours    = round(duration.as('h'));
    var days     = round(duration.as('d'));
    var months   = round(duration.as('M'));
    var years    = round(duration.as('y'));

    var a = seconds <= thresholds.ss && ['s', seconds]  ||
            seconds < thresholds.s   && ['ss', seconds] ||
            minutes <= 1             && ['m']           ||
            minutes < thresholds.m   && ['mm', minutes] ||
            hours   <= 1             && ['h']           ||
            hours   < thresholds.h   && ['hh', hours]   ||
            days    <= 1             && ['d']           ||
            days    < thresholds.d   && ['dd', days]    ||
            months  <= 1             && ['M']           ||
            months  < thresholds.M   && ['MM', months]  ||
            years   <= 1             && ['y']           || ['yy', years];

    a[2] = withoutSuffix;
    a[3] = +posNegDuration > 0;
    a[4] = locale;
    return substituteTimeAgo.apply(null, a);
}

// This function allows you to set the rounding function for relative time strings
function getSetRelativeTimeRounding (roundingFunction) {
    if (roundingFunction === undefined) {
        return round;
    }
    if (typeof(roundingFunction) === 'function') {
        round = roundingFunction;
        return true;
    }
    return false;
}

// This function allows you to set a threshold for relative time strings
function getSetRelativeTimeThreshold (threshold, limit) {
    if (thresholds[threshold] === undefined) {
        return false;
    }
    if (limit === undefined) {
        return thresholds[threshold];
    }
    thresholds[threshold] = limit;
    if (threshold === 's') {
        thresholds.ss = limit - 1;
    }
    return true;
}

function humanize (withSuffix) {
    if (!this.isValid()) {
        return this.localeData().invalidDate();
    }

    var locale = this.localeData();
    var output = relativeTime$1(this, !withSuffix, locale);

    if (withSuffix) {
        output = locale.pastFuture(+this, output);
    }

    return locale.postformat(output);
}

var abs$1 = Math.abs;

function sign(x) {
    return ((x > 0) - (x < 0)) || +x;
}

function toISOString$1() {
    // for ISO strings we do not use the normal bubbling rules:
    //  * milliseconds bubble up until they become hours
    //  * days do not bubble at all
    //  * months bubble up until they become years
    // This is because there is no context-free conversion between hours and days
    // (think of clock changes)
    // and also not between days and months (28-31 days per month)
    if (!this.isValid()) {
        return this.localeData().invalidDate();
    }

    var seconds = abs$1(this._milliseconds) / 1000;
    var days         = abs$1(this._days);
    var months       = abs$1(this._months);
    var minutes, hours, years;

    // 3600 seconds -> 60 minutes -> 1 hour
    minutes           = absFloor(seconds / 60);
    hours             = absFloor(minutes / 60);
    seconds %= 60;
    minutes %= 60;

    // 12 months -> 1 year
    years  = absFloor(months / 12);
    months %= 12;


    // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
    var Y = years;
    var M = months;
    var D = days;
    var h = hours;
    var m = minutes;
    var s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';
    var total = this.asSeconds();

    if (!total) {
        // this is the same as C#'s (Noda) and python (isodate)...
        // but not other JS (goog.date)
        return 'P0D';
    }

    var totalSign = total < 0 ? '-' : '';
    var ymSign = sign(this._months) !== sign(total) ? '-' : '';
    var daysSign = sign(this._days) !== sign(total) ? '-' : '';
    var hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';

    return totalSign + 'P' +
        (Y ? ymSign + Y + 'Y' : '') +
        (M ? ymSign + M + 'M' : '') +
        (D ? daysSign + D + 'D' : '') +
        ((h || m || s) ? 'T' : '') +
        (h ? hmsSign + h + 'H' : '') +
        (m ? hmsSign + m + 'M' : '') +
        (s ? hmsSign + s + 'S' : '');
}

var proto$2 = Duration.prototype;

proto$2.isValid        = isValid$1;
proto$2.abs            = abs;
proto$2.add            = add$1;
proto$2.subtract       = subtract$1;
proto$2.as             = as;
proto$2.asMilliseconds = asMilliseconds;
proto$2.asSeconds      = asSeconds;
proto$2.asMinutes      = asMinutes;
proto$2.asHours        = asHours;
proto$2.asDays         = asDays;
proto$2.asWeeks        = asWeeks;
proto$2.asMonths       = asMonths;
proto$2.asYears        = asYears;
proto$2.valueOf        = valueOf$1;
proto$2._bubble        = bubble;
proto$2.clone          = clone$1;
proto$2.get            = get$2;
proto$2.milliseconds   = milliseconds;
proto$2.seconds        = seconds;
proto$2.minutes        = minutes;
proto$2.hours          = hours;
proto$2.days           = days;
proto$2.weeks          = weeks;
proto$2.months         = months;
proto$2.years          = years;
proto$2.humanize       = humanize;
proto$2.toISOString    = toISOString$1;
proto$2.toString       = toISOString$1;
proto$2.toJSON         = toISOString$1;
proto$2.locale         = locale;
proto$2.localeData     = localeData;

// Deprecations
proto$2.toIsoString = deprecate('toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)', toISOString$1);
proto$2.lang = lang;

// Side effect imports

// FORMATTING

addFormatToken('X', 0, 0, 'unix');
addFormatToken('x', 0, 0, 'valueOf');

// PARSING

addRegexToken('x', matchSigned);
addRegexToken('X', matchTimestamp);
addParseToken('X', function (input, array, config) {
    config._d = new Date(parseFloat(input, 10) * 1000);
});
addParseToken('x', function (input, array, config) {
    config._d = new Date(toInt(input));
});

// Side effect imports

//! moment.js
//! version : 2.19.4
//! authors : Tim Wood, Iskren Chernev, Moment.js contributors
//! license : MIT
//! momentjs.com

hooks.version = '2.19.4';

setHookCallback(createLocal);

hooks.fn                    = proto;
hooks.min                   = min;
hooks.max                   = max;
hooks.now                   = now;
hooks.utc                   = createUTC;
hooks.unix                  = createUnix;
hooks.months                = listMonths;
hooks.isDate                = isDate;
hooks.locale                = getSetGlobalLocale;
hooks.invalid               = createInvalid;
hooks.duration              = createDuration;
hooks.isMoment              = isMoment;
hooks.weekdays              = listWeekdays;
hooks.parseZone             = createInZone;
hooks.localeData            = getLocale;
hooks.isDuration            = isDuration;
hooks.monthsShort           = listMonthsShort;
hooks.weekdaysMin           = listWeekdaysMin;
hooks.defineLocale          = defineLocale;
hooks.updateLocale          = updateLocale;
hooks.locales               = listLocales;
hooks.weekdaysShort         = listWeekdaysShort;
hooks.normalizeUnits        = normalizeUnits;
hooks.relativeTimeRounding  = getSetRelativeTimeRounding;
hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
hooks.calendarFormat        = getCalendarFormat;
hooks.prototype             = proto;

//! moment.js locale configuration
//! locale : Afrikaans [af]
//! author : Werner Mollentze : https://github.com/wernerm

hooks.defineLocale('af', {
    months : 'Januarie_Februarie_Maart_April_Mei_Junie_Julie_Augustus_September_Oktober_November_Desember'.split('_'),
    monthsShort : 'Jan_Feb_Mrt_Apr_Mei_Jun_Jul_Aug_Sep_Okt_Nov_Des'.split('_'),
    weekdays : 'Sondag_Maandag_Dinsdag_Woensdag_Donderdag_Vrydag_Saterdag'.split('_'),
    weekdaysShort : 'Son_Maa_Din_Woe_Don_Vry_Sat'.split('_'),
    weekdaysMin : 'So_Ma_Di_Wo_Do_Vr_Sa'.split('_'),
    meridiemParse: /vm|nm/i,
    isPM : function (input) {
        return /^nm$/i.test(input);
    },
    meridiem : function (hours, minutes, isLower) {
        if (hours < 12) {
            return isLower ? 'vm' : 'VM';
        } else {
            return isLower ? 'nm' : 'NM';
        }
    },
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[Vandag om] LT',
        nextDay : '[Môre om] LT',
        nextWeek : 'dddd [om] LT',
        lastDay : '[Gister om] LT',
        lastWeek : '[Laas] dddd [om] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'oor %s',
        past : '%s gelede',
        s : '\'n paar sekondes',
        m : '\'n minuut',
        mm : '%d minute',
        h : '\'n uur',
        hh : '%d ure',
        d : '\'n dag',
        dd : '%d dae',
        M : '\'n maand',
        MM : '%d maande',
        y : '\'n jaar',
        yy : '%d jaar'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
    ordinal : function (number) {
        return number + ((number === 1 || number === 8 || number >= 20) ? 'ste' : 'de'); // Thanks to Joris Röling : https://github.com/jjupiter
    },
    week : {
        dow : 1, // Maandag is die eerste dag van die week.
        doy : 4  // Die week wat die 4de Januarie bevat is die eerste week van die jaar.
    }
});

//! moment.js locale configuration
//! locale : Arabic (Algeria) [ar-dz]
//! author : Noureddine LOUAHEDJ : https://github.com/noureddineme

hooks.defineLocale('ar-dz', {
    months : 'جانفي_فيفري_مارس_أفريل_ماي_جوان_جويلية_أوت_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split('_'),
    monthsShort : 'جانفي_فيفري_مارس_أفريل_ماي_جوان_جويلية_أوت_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split('_'),
    weekdays : 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
    weekdaysShort : 'احد_اثنين_ثلاثاء_اربعاء_خميس_جمعة_سبت'.split('_'),
    weekdaysMin : 'أح_إث_ثلا_أر_خم_جم_سب'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[اليوم على الساعة] LT',
        nextDay: '[غدا على الساعة] LT',
        nextWeek: 'dddd [على الساعة] LT',
        lastDay: '[أمس على الساعة] LT',
        lastWeek: 'dddd [على الساعة] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'في %s',
        past : 'منذ %s',
        s : 'ثوان',
        m : 'دقيقة',
        mm : '%d دقائق',
        h : 'ساعة',
        hh : '%d ساعات',
        d : 'يوم',
        dd : '%d أيام',
        M : 'شهر',
        MM : '%d أشهر',
        y : 'سنة',
        yy : '%d سنوات'
    },
    week : {
        dow : 0, // Sunday is the first day of the week.
        doy : 4  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Arabic (Kuwait) [ar-kw]
//! author : Nusret Parlak: https://github.com/nusretparlak

hooks.defineLocale('ar-kw', {
    months : 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split('_'),
    monthsShort : 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split('_'),
    weekdays : 'الأحد_الإتنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
    weekdaysShort : 'احد_اتنين_ثلاثاء_اربعاء_خميس_جمعة_سبت'.split('_'),
    weekdaysMin : 'ح_ن_ث_ر_خ_ج_س'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[اليوم على الساعة] LT',
        nextDay: '[غدا على الساعة] LT',
        nextWeek: 'dddd [على الساعة] LT',
        lastDay: '[أمس على الساعة] LT',
        lastWeek: 'dddd [على الساعة] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'في %s',
        past : 'منذ %s',
        s : 'ثوان',
        m : 'دقيقة',
        mm : '%d دقائق',
        h : 'ساعة',
        hh : '%d ساعات',
        d : 'يوم',
        dd : '%d أيام',
        M : 'شهر',
        MM : '%d أشهر',
        y : 'سنة',
        yy : '%d سنوات'
    },
    week : {
        dow : 0, // Sunday is the first day of the week.
        doy : 12  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Arabic (Lybia) [ar-ly]
//! author : Ali Hmer: https://github.com/kikoanis

var symbolMap = {
    '1': '1',
    '2': '2',
    '3': '3',
    '4': '4',
    '5': '5',
    '6': '6',
    '7': '7',
    '8': '8',
    '9': '9',
    '0': '0'
};
var pluralForm = function (n) {
    return n === 0 ? 0 : n === 1 ? 1 : n === 2 ? 2 : n % 100 >= 3 && n % 100 <= 10 ? 3 : n % 100 >= 11 ? 4 : 5;
};
var plurals = {
    s : ['أقل من ثانية', 'ثانية واحدة', ['ثانيتان', 'ثانيتين'], '%d ثوان', '%d ثانية', '%d ثانية'],
    m : ['أقل من دقيقة', 'دقيقة واحدة', ['دقيقتان', 'دقيقتين'], '%d دقائق', '%d دقيقة', '%d دقيقة'],
    h : ['أقل من ساعة', 'ساعة واحدة', ['ساعتان', 'ساعتين'], '%d ساعات', '%d ساعة', '%d ساعة'],
    d : ['أقل من يوم', 'يوم واحد', ['يومان', 'يومين'], '%d أيام', '%d يومًا', '%d يوم'],
    M : ['أقل من شهر', 'شهر واحد', ['شهران', 'شهرين'], '%d أشهر', '%d شهرا', '%d شهر'],
    y : ['أقل من عام', 'عام واحد', ['عامان', 'عامين'], '%d أعوام', '%d عامًا', '%d عام']
};
var pluralize = function (u) {
    return function (number, withoutSuffix, string, isFuture) {
        var f = pluralForm(number),
            str = plurals[u][pluralForm(number)];
        if (f === 2) {
            str = str[withoutSuffix ? 0 : 1];
        }
        return str.replace(/%d/i, number);
    };
};
var months$1 = [
    'يناير',
    'فبراير',
    'مارس',
    'أبريل',
    'مايو',
    'يونيو',
    'يوليو',
    'أغسطس',
    'سبتمبر',
    'أكتوبر',
    'نوفمبر',
    'ديسمبر'
];

hooks.defineLocale('ar-ly', {
    months : months$1,
    monthsShort : months$1,
    weekdays : 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
    weekdaysShort : 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
    weekdaysMin : 'ح_ن_ث_ر_خ_ج_س'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'D/\u200FM/\u200FYYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    meridiemParse: /ص|م/,
    isPM : function (input) {
        return 'م' === input;
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 12) {
            return 'ص';
        } else {
            return 'م';
        }
    },
    calendar : {
        sameDay: '[اليوم عند الساعة] LT',
        nextDay: '[غدًا عند الساعة] LT',
        nextWeek: 'dddd [عند الساعة] LT',
        lastDay: '[أمس عند الساعة] LT',
        lastWeek: 'dddd [عند الساعة] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'بعد %s',
        past : 'منذ %s',
        s : pluralize('s'),
        m : pluralize('m'),
        mm : pluralize('m'),
        h : pluralize('h'),
        hh : pluralize('h'),
        d : pluralize('d'),
        dd : pluralize('d'),
        M : pluralize('M'),
        MM : pluralize('M'),
        y : pluralize('y'),
        yy : pluralize('y')
    },
    preparse: function (string) {
        return string.replace(/،/g, ',');
    },
    postformat: function (string) {
        return string.replace(/\d/g, function (match) {
            return symbolMap[match];
        }).replace(/,/g, '،');
    },
    week : {
        dow : 6, // Saturday is the first day of the week.
        doy : 12  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Arabic (Morocco) [ar-ma]
//! author : ElFadili Yassine : https://github.com/ElFadiliY
//! author : Abdel Said : https://github.com/abdelsaid

hooks.defineLocale('ar-ma', {
    months : 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split('_'),
    monthsShort : 'يناير_فبراير_مارس_أبريل_ماي_يونيو_يوليوز_غشت_شتنبر_أكتوبر_نونبر_دجنبر'.split('_'),
    weekdays : 'الأحد_الإتنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
    weekdaysShort : 'احد_اتنين_ثلاثاء_اربعاء_خميس_جمعة_سبت'.split('_'),
    weekdaysMin : 'ح_ن_ث_ر_خ_ج_س'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[اليوم على الساعة] LT',
        nextDay: '[غدا على الساعة] LT',
        nextWeek: 'dddd [على الساعة] LT',
        lastDay: '[أمس على الساعة] LT',
        lastWeek: 'dddd [على الساعة] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'في %s',
        past : 'منذ %s',
        s : 'ثوان',
        m : 'دقيقة',
        mm : '%d دقائق',
        h : 'ساعة',
        hh : '%d ساعات',
        d : 'يوم',
        dd : '%d أيام',
        M : 'شهر',
        MM : '%d أشهر',
        y : 'سنة',
        yy : '%d سنوات'
    },
    week : {
        dow : 6, // Saturday is the first day of the week.
        doy : 12  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Arabic (Saudi Arabia) [ar-sa]
//! author : Suhail Alkowaileet : https://github.com/xsoh

var symbolMap$1 = {
    '1': '١',
    '2': '٢',
    '3': '٣',
    '4': '٤',
    '5': '٥',
    '6': '٦',
    '7': '٧',
    '8': '٨',
    '9': '٩',
    '0': '٠'
};
var numberMap = {
    '١': '1',
    '٢': '2',
    '٣': '3',
    '٤': '4',
    '٥': '5',
    '٦': '6',
    '٧': '7',
    '٨': '8',
    '٩': '9',
    '٠': '0'
};

hooks.defineLocale('ar-sa', {
    months : 'يناير_فبراير_مارس_أبريل_مايو_يونيو_يوليو_أغسطس_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split('_'),
    monthsShort : 'يناير_فبراير_مارس_أبريل_مايو_يونيو_يوليو_أغسطس_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split('_'),
    weekdays : 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
    weekdaysShort : 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
    weekdaysMin : 'ح_ن_ث_ر_خ_ج_س'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    meridiemParse: /ص|م/,
    isPM : function (input) {
        return 'م' === input;
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 12) {
            return 'ص';
        } else {
            return 'م';
        }
    },
    calendar : {
        sameDay: '[اليوم على الساعة] LT',
        nextDay: '[غدا على الساعة] LT',
        nextWeek: 'dddd [على الساعة] LT',
        lastDay: '[أمس على الساعة] LT',
        lastWeek: 'dddd [على الساعة] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'في %s',
        past : 'منذ %s',
        s : 'ثوان',
        m : 'دقيقة',
        mm : '%d دقائق',
        h : 'ساعة',
        hh : '%d ساعات',
        d : 'يوم',
        dd : '%d أيام',
        M : 'شهر',
        MM : '%d أشهر',
        y : 'سنة',
        yy : '%d سنوات'
    },
    preparse: function (string) {
        return string.replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
            return numberMap[match];
        }).replace(/،/g, ',');
    },
    postformat: function (string) {
        return string.replace(/\d/g, function (match) {
            return symbolMap$1[match];
        }).replace(/,/g, '،');
    },
    week : {
        dow : 0, // Sunday is the first day of the week.
        doy : 6  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale  :  Arabic (Tunisia) [ar-tn]
//! author : Nader Toukabri : https://github.com/naderio

hooks.defineLocale('ar-tn', {
    months: 'جانفي_فيفري_مارس_أفريل_ماي_جوان_جويلية_أوت_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split('_'),
    monthsShort: 'جانفي_فيفري_مارس_أفريل_ماي_جوان_جويلية_أوت_سبتمبر_أكتوبر_نوفمبر_ديسمبر'.split('_'),
    weekdays: 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
    weekdaysShort: 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
    weekdaysMin: 'ح_ن_ث_ر_خ_ج_س'.split('_'),
    weekdaysParseExact : true,
    longDateFormat: {
        LT: 'HH:mm',
        LTS: 'HH:mm:ss',
        L: 'DD/MM/YYYY',
        LL: 'D MMMM YYYY',
        LLL: 'D MMMM YYYY HH:mm',
        LLLL: 'dddd D MMMM YYYY HH:mm'
    },
    calendar: {
        sameDay: '[اليوم على الساعة] LT',
        nextDay: '[غدا على الساعة] LT',
        nextWeek: 'dddd [على الساعة] LT',
        lastDay: '[أمس على الساعة] LT',
        lastWeek: 'dddd [على الساعة] LT',
        sameElse: 'L'
    },
    relativeTime: {
        future: 'في %s',
        past: 'منذ %s',
        s: 'ثوان',
        m: 'دقيقة',
        mm: '%d دقائق',
        h: 'ساعة',
        hh: '%d ساعات',
        d: 'يوم',
        dd: '%d أيام',
        M: 'شهر',
        MM: '%d أشهر',
        y: 'سنة',
        yy: '%d سنوات'
    },
    week: {
        dow: 1, // Monday is the first day of the week.
        doy: 4 // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Arabic [ar]
//! author : Abdel Said: https://github.com/abdelsaid
//! author : Ahmed Elkhatib
//! author : forabi https://github.com/forabi

var symbolMap$2 = {
    '1': '١',
    '2': '٢',
    '3': '٣',
    '4': '٤',
    '5': '٥',
    '6': '٦',
    '7': '٧',
    '8': '٨',
    '9': '٩',
    '0': '٠'
};
var numberMap$1 = {
    '١': '1',
    '٢': '2',
    '٣': '3',
    '٤': '4',
    '٥': '5',
    '٦': '6',
    '٧': '7',
    '٨': '8',
    '٩': '9',
    '٠': '0'
};
var pluralForm$1 = function (n) {
    return n === 0 ? 0 : n === 1 ? 1 : n === 2 ? 2 : n % 100 >= 3 && n % 100 <= 10 ? 3 : n % 100 >= 11 ? 4 : 5;
};
var plurals$1 = {
    s : ['أقل من ثانية', 'ثانية واحدة', ['ثانيتان', 'ثانيتين'], '%d ثوان', '%d ثانية', '%d ثانية'],
    m : ['أقل من دقيقة', 'دقيقة واحدة', ['دقيقتان', 'دقيقتين'], '%d دقائق', '%d دقيقة', '%d دقيقة'],
    h : ['أقل من ساعة', 'ساعة واحدة', ['ساعتان', 'ساعتين'], '%d ساعات', '%d ساعة', '%d ساعة'],
    d : ['أقل من يوم', 'يوم واحد', ['يومان', 'يومين'], '%d أيام', '%d يومًا', '%d يوم'],
    M : ['أقل من شهر', 'شهر واحد', ['شهران', 'شهرين'], '%d أشهر', '%d شهرا', '%d شهر'],
    y : ['أقل من عام', 'عام واحد', ['عامان', 'عامين'], '%d أعوام', '%d عامًا', '%d عام']
};
var pluralize$1 = function (u) {
    return function (number, withoutSuffix, string, isFuture) {
        var f = pluralForm$1(number),
            str = plurals$1[u][pluralForm$1(number)];
        if (f === 2) {
            str = str[withoutSuffix ? 0 : 1];
        }
        return str.replace(/%d/i, number);
    };
};
var months$2 = [
    'كانون الثاني يناير',
    'شباط فبراير',
    'آذار مارس',
    'نيسان أبريل',
    'أيار مايو',
    'حزيران يونيو',
    'تموز يوليو',
    'آب أغسطس',
    'أيلول سبتمبر',
    'تشرين الأول أكتوبر',
    'تشرين الثاني نوفمبر',
    'كانون الأول ديسمبر'
];

hooks.defineLocale('ar', {
    months : months$2,
    monthsShort : months$2,
    weekdays : 'الأحد_الإثنين_الثلاثاء_الأربعاء_الخميس_الجمعة_السبت'.split('_'),
    weekdaysShort : 'أحد_إثنين_ثلاثاء_أربعاء_خميس_جمعة_سبت'.split('_'),
    weekdaysMin : 'ح_ن_ث_ر_خ_ج_س'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'D/\u200FM/\u200FYYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    meridiemParse: /ص|م/,
    isPM : function (input) {
        return 'م' === input;
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 12) {
            return 'ص';
        } else {
            return 'م';
        }
    },
    calendar : {
        sameDay: '[اليوم عند الساعة] LT',
        nextDay: '[غدًا عند الساعة] LT',
        nextWeek: 'dddd [عند الساعة] LT',
        lastDay: '[أمس عند الساعة] LT',
        lastWeek: 'dddd [عند الساعة] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'بعد %s',
        past : 'منذ %s',
        s : pluralize$1('s'),
        m : pluralize$1('m'),
        mm : pluralize$1('m'),
        h : pluralize$1('h'),
        hh : pluralize$1('h'),
        d : pluralize$1('d'),
        dd : pluralize$1('d'),
        M : pluralize$1('M'),
        MM : pluralize$1('M'),
        y : pluralize$1('y'),
        yy : pluralize$1('y')
    },
    preparse: function (string) {
        return string.replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
            return numberMap$1[match];
        }).replace(/،/g, ',');
    },
    postformat: function (string) {
        return string.replace(/\d/g, function (match) {
            return symbolMap$2[match];
        }).replace(/,/g, '،');
    },
    week : {
        dow : 6, // Saturday is the first day of the week.
        doy : 12  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Azerbaijani [az]
//! author : topchiyev : https://github.com/topchiyev

var suffixes = {
    1: '-inci',
    5: '-inci',
    8: '-inci',
    70: '-inci',
    80: '-inci',
    2: '-nci',
    7: '-nci',
    20: '-nci',
    50: '-nci',
    3: '-üncü',
    4: '-üncü',
    100: '-üncü',
    6: '-ncı',
    9: '-uncu',
    10: '-uncu',
    30: '-uncu',
    60: '-ıncı',
    90: '-ıncı'
};

hooks.defineLocale('az', {
    months : 'yanvar_fevral_mart_aprel_may_iyun_iyul_avqust_sentyabr_oktyabr_noyabr_dekabr'.split('_'),
    monthsShort : 'yan_fev_mar_apr_may_iyn_iyl_avq_sen_okt_noy_dek'.split('_'),
    weekdays : 'Bazar_Bazar ertəsi_Çərşənbə axşamı_Çərşənbə_Cümə axşamı_Cümə_Şənbə'.split('_'),
    weekdaysShort : 'Baz_BzE_ÇAx_Çər_CAx_Cüm_Şən'.split('_'),
    weekdaysMin : 'Bz_BE_ÇA_Çə_CA_Cü_Şə'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[bugün saat] LT',
        nextDay : '[sabah saat] LT',
        nextWeek : '[gələn həftə] dddd [saat] LT',
        lastDay : '[dünən] LT',
        lastWeek : '[keçən həftə] dddd [saat] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s sonra',
        past : '%s əvvəl',
        s : 'birneçə saniyyə',
        m : 'bir dəqiqə',
        mm : '%d dəqiqə',
        h : 'bir saat',
        hh : '%d saat',
        d : 'bir gün',
        dd : '%d gün',
        M : 'bir ay',
        MM : '%d ay',
        y : 'bir il',
        yy : '%d il'
    },
    meridiemParse: /gecə|səhər|gündüz|axşam/,
    isPM : function (input) {
        return /^(gündüz|axşam)$/.test(input);
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 4) {
            return 'gecə';
        } else if (hour < 12) {
            return 'səhər';
        } else if (hour < 17) {
            return 'gündüz';
        } else {
            return 'axşam';
        }
    },
    dayOfMonthOrdinalParse: /\d{1,2}-(ıncı|inci|nci|üncü|ncı|uncu)/,
    ordinal : function (number) {
        if (number === 0) {  // special case for zero
            return number + '-ıncı';
        }
        var a = number % 10,
            b = number % 100 - a,
            c = number >= 100 ? 100 : null;
        return number + (suffixes[a] || suffixes[b] || suffixes[c]);
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Belarusian [be]
//! author : Dmitry Demidov : https://github.com/demidov91
//! author: Praleska: http://praleska.pro/
//! Author : Menelion Elensúle : https://github.com/Oire

function plural(word, num) {
    var forms = word.split('_');
    return num % 10 === 1 && num % 100 !== 11 ? forms[0] : (num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20) ? forms[1] : forms[2]);
}
function relativeTimeWithPlural(number, withoutSuffix, key) {
    var format = {
        'mm': withoutSuffix ? 'хвіліна_хвіліны_хвілін' : 'хвіліну_хвіліны_хвілін',
        'hh': withoutSuffix ? 'гадзіна_гадзіны_гадзін' : 'гадзіну_гадзіны_гадзін',
        'dd': 'дзень_дні_дзён',
        'MM': 'месяц_месяцы_месяцаў',
        'yy': 'год_гады_гадоў'
    };
    if (key === 'm') {
        return withoutSuffix ? 'хвіліна' : 'хвіліну';
    }
    else if (key === 'h') {
        return withoutSuffix ? 'гадзіна' : 'гадзіну';
    }
    else {
        return number + ' ' + plural(format[key], +number);
    }
}

hooks.defineLocale('be', {
    months : {
        format: 'студзеня_лютага_сакавіка_красавіка_траўня_чэрвеня_ліпеня_жніўня_верасня_кастрычніка_лістапада_снежня'.split('_'),
        standalone: 'студзень_люты_сакавік_красавік_травень_чэрвень_ліпень_жнівень_верасень_кастрычнік_лістапад_снежань'.split('_')
    },
    monthsShort : 'студ_лют_сак_крас_трав_чэрв_ліп_жнів_вер_каст_ліст_снеж'.split('_'),
    weekdays : {
        format: 'нядзелю_панядзелак_аўторак_сераду_чацвер_пятніцу_суботу'.split('_'),
        standalone: 'нядзеля_панядзелак_аўторак_серада_чацвер_пятніца_субота'.split('_'),
        isFormat: /\[ ?[Вв] ?(?:мінулую|наступную)? ?\] ?dddd/
    },
    weekdaysShort : 'нд_пн_ат_ср_чц_пт_сб'.split('_'),
    weekdaysMin : 'нд_пн_ат_ср_чц_пт_сб'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D MMMM YYYY г.',
        LLL : 'D MMMM YYYY г., HH:mm',
        LLLL : 'dddd, D MMMM YYYY г., HH:mm'
    },
    calendar : {
        sameDay: '[Сёння ў] LT',
        nextDay: '[Заўтра ў] LT',
        lastDay: '[Учора ў] LT',
        nextWeek: function () {
            return '[У] dddd [ў] LT';
        },
        lastWeek: function () {
            switch (this.day()) {
                case 0:
                case 3:
                case 5:
                case 6:
                    return '[У мінулую] dddd [ў] LT';
                case 1:
                case 2:
                case 4:
                    return '[У мінулы] dddd [ў] LT';
            }
        },
        sameElse: 'L'
    },
    relativeTime : {
        future : 'праз %s',
        past : '%s таму',
        s : 'некалькі секунд',
        m : relativeTimeWithPlural,
        mm : relativeTimeWithPlural,
        h : relativeTimeWithPlural,
        hh : relativeTimeWithPlural,
        d : 'дзень',
        dd : relativeTimeWithPlural,
        M : 'месяц',
        MM : relativeTimeWithPlural,
        y : 'год',
        yy : relativeTimeWithPlural
    },
    meridiemParse: /ночы|раніцы|дня|вечара/,
    isPM : function (input) {
        return /^(дня|вечара)$/.test(input);
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 4) {
            return 'ночы';
        } else if (hour < 12) {
            return 'раніцы';
        } else if (hour < 17) {
            return 'дня';
        } else {
            return 'вечара';
        }
    },
    dayOfMonthOrdinalParse: /\d{1,2}-(і|ы|га)/,
    ordinal: function (number, period) {
        switch (period) {
            case 'M':
            case 'd':
            case 'DDD':
            case 'w':
            case 'W':
                return (number % 10 === 2 || number % 10 === 3) && (number % 100 !== 12 && number % 100 !== 13) ? number + '-і' : number + '-ы';
            case 'D':
                return number + '-га';
            default:
                return number;
        }
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Bulgarian [bg]
//! author : Krasen Borisov : https://github.com/kraz

hooks.defineLocale('bg', {
    months : 'януари_февруари_март_април_май_юни_юли_август_септември_октомври_ноември_декември'.split('_'),
    monthsShort : 'янр_фев_мар_апр_май_юни_юли_авг_сеп_окт_ное_дек'.split('_'),
    weekdays : 'неделя_понеделник_вторник_сряда_четвъртък_петък_събота'.split('_'),
    weekdaysShort : 'нед_пон_вто_сря_чет_пет_съб'.split('_'),
    weekdaysMin : 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
    longDateFormat : {
        LT : 'H:mm',
        LTS : 'H:mm:ss',
        L : 'D.MM.YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY H:mm',
        LLLL : 'dddd, D MMMM YYYY H:mm'
    },
    calendar : {
        sameDay : '[Днес в] LT',
        nextDay : '[Утре в] LT',
        nextWeek : 'dddd [в] LT',
        lastDay : '[Вчера в] LT',
        lastWeek : function () {
            switch (this.day()) {
                case 0:
                case 3:
                case 6:
                    return '[В изминалата] dddd [в] LT';
                case 1:
                case 2:
                case 4:
                case 5:
                    return '[В изминалия] dddd [в] LT';
            }
        },
        sameElse : 'L'
    },
    relativeTime : {
        future : 'след %s',
        past : 'преди %s',
        s : 'няколко секунди',
        m : 'минута',
        mm : '%d минути',
        h : 'час',
        hh : '%d часа',
        d : 'ден',
        dd : '%d дни',
        M : 'месец',
        MM : '%d месеца',
        y : 'година',
        yy : '%d години'
    },
    dayOfMonthOrdinalParse: /\d{1,2}-(ев|ен|ти|ви|ри|ми)/,
    ordinal : function (number) {
        var lastDigit = number % 10,
            last2Digits = number % 100;
        if (number === 0) {
            return number + '-ев';
        } else if (last2Digits === 0) {
            return number + '-ен';
        } else if (last2Digits > 10 && last2Digits < 20) {
            return number + '-ти';
        } else if (lastDigit === 1) {
            return number + '-ви';
        } else if (lastDigit === 2) {
            return number + '-ри';
        } else if (lastDigit === 7 || lastDigit === 8) {
            return number + '-ми';
        } else {
            return number + '-ти';
        }
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Bambara [bm]
//! author : Estelle Comment : https://github.com/estellecomment
// Language contact person : Abdoufata Kane : https://github.com/abdoufata

hooks.defineLocale('bm', {
    months : 'Zanwuyekalo_Fewuruyekalo_Marisikalo_Awirilikalo_Mɛkalo_Zuwɛnkalo_Zuluyekalo_Utikalo_Sɛtanburukalo_ɔkutɔburukalo_Nowanburukalo_Desanburukalo'.split('_'),
    monthsShort : 'Zan_Few_Mar_Awi_Mɛ_Zuw_Zul_Uti_Sɛt_ɔku_Now_Des'.split('_'),
    weekdays : 'Kari_Ntɛnɛn_Tarata_Araba_Alamisa_Juma_Sibiri'.split('_'),
    weekdaysShort : 'Kar_Ntɛ_Tar_Ara_Ala_Jum_Sib'.split('_'),
    weekdaysMin : 'Ka_Nt_Ta_Ar_Al_Ju_Si'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'MMMM [tile] D [san] YYYY',
        LLL : 'MMMM [tile] D [san] YYYY [lɛrɛ] HH:mm',
        LLLL : 'dddd MMMM [tile] D [san] YYYY [lɛrɛ] HH:mm'
    },
    calendar : {
        sameDay : '[Bi lɛrɛ] LT',
        nextDay : '[Sini lɛrɛ] LT',
        nextWeek : 'dddd [don lɛrɛ] LT',
        lastDay : '[Kunu lɛrɛ] LT',
        lastWeek : 'dddd [tɛmɛnen lɛrɛ] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s kɔnɔ',
        past : 'a bɛ %s bɔ',
        s : 'sanga dama dama',
        m : 'miniti kelen',
        mm : 'miniti %d',
        h : 'lɛrɛ kelen',
        hh : 'lɛrɛ %d',
        d : 'tile kelen',
        dd : 'tile %d',
        M : 'kalo kelen',
        MM : 'kalo %d',
        y : 'san kelen',
        yy : 'san %d'
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Bengali [bn]
//! author : Kaushik Gandhi : https://github.com/kaushikgandhi

var symbolMap$3 = {
    '1': '১',
    '2': '২',
    '3': '৩',
    '4': '৪',
    '5': '৫',
    '6': '৬',
    '7': '৭',
    '8': '৮',
    '9': '৯',
    '0': '০'
};
var numberMap$2 = {
    '১': '1',
    '২': '2',
    '৩': '3',
    '৪': '4',
    '৫': '5',
    '৬': '6',
    '৭': '7',
    '৮': '8',
    '৯': '9',
    '০': '0'
};

hooks.defineLocale('bn', {
    months : 'জানুয়ারী_ফেব্রুয়ারি_মার্চ_এপ্রিল_মে_জুন_জুলাই_আগস্ট_সেপ্টেম্বর_অক্টোবর_নভেম্বর_ডিসেম্বর'.split('_'),
    monthsShort : 'জানু_ফেব_মার্চ_এপ্র_মে_জুন_জুল_আগ_সেপ্ট_অক্টো_নভে_ডিসে'.split('_'),
    weekdays : 'রবিবার_সোমবার_মঙ্গলবার_বুধবার_বৃহস্পতিবার_শুক্রবার_শনিবার'.split('_'),
    weekdaysShort : 'রবি_সোম_মঙ্গল_বুধ_বৃহস্পতি_শুক্র_শনি'.split('_'),
    weekdaysMin : 'রবি_সোম_মঙ্গ_বুধ_বৃহঃ_শুক্র_শনি'.split('_'),
    longDateFormat : {
        LT : 'A h:mm সময়',
        LTS : 'A h:mm:ss সময়',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY, A h:mm সময়',
        LLLL : 'dddd, D MMMM YYYY, A h:mm সময়'
    },
    calendar : {
        sameDay : '[আজ] LT',
        nextDay : '[আগামীকাল] LT',
        nextWeek : 'dddd, LT',
        lastDay : '[গতকাল] LT',
        lastWeek : '[গত] dddd, LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s পরে',
        past : '%s আগে',
        s : 'কয়েক সেকেন্ড',
        m : 'এক মিনিট',
        mm : '%d মিনিট',
        h : 'এক ঘন্টা',
        hh : '%d ঘন্টা',
        d : 'এক দিন',
        dd : '%d দিন',
        M : 'এক মাস',
        MM : '%d মাস',
        y : 'এক বছর',
        yy : '%d বছর'
    },
    preparse: function (string) {
        return string.replace(/[১২৩৪৫৬৭৮৯০]/g, function (match) {
            return numberMap$2[match];
        });
    },
    postformat: function (string) {
        return string.replace(/\d/g, function (match) {
            return symbolMap$3[match];
        });
    },
    meridiemParse: /রাত|সকাল|দুপুর|বিকাল|রাত/,
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if ((meridiem === 'রাত' && hour >= 4) ||
                (meridiem === 'দুপুর' && hour < 5) ||
                meridiem === 'বিকাল') {
            return hour + 12;
        } else {
            return hour;
        }
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 4) {
            return 'রাত';
        } else if (hour < 10) {
            return 'সকাল';
        } else if (hour < 17) {
            return 'দুপুর';
        } else if (hour < 20) {
            return 'বিকাল';
        } else {
            return 'রাত';
        }
    },
    week : {
        dow : 0, // Sunday is the first day of the week.
        doy : 6  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Tibetan [bo]
//! author : Thupten N. Chakrishar : https://github.com/vajradog

var symbolMap$4 = {
    '1': '༡',
    '2': '༢',
    '3': '༣',
    '4': '༤',
    '5': '༥',
    '6': '༦',
    '7': '༧',
    '8': '༨',
    '9': '༩',
    '0': '༠'
};
var numberMap$3 = {
    '༡': '1',
    '༢': '2',
    '༣': '3',
    '༤': '4',
    '༥': '5',
    '༦': '6',
    '༧': '7',
    '༨': '8',
    '༩': '9',
    '༠': '0'
};

hooks.defineLocale('bo', {
    months : 'ཟླ་བ་དང་པོ_ཟླ་བ་གཉིས་པ_ཟླ་བ་གསུམ་པ_ཟླ་བ་བཞི་པ_ཟླ་བ་ལྔ་པ_ཟླ་བ་དྲུག་པ_ཟླ་བ་བདུན་པ_ཟླ་བ་བརྒྱད་པ_ཟླ་བ་དགུ་པ_ཟླ་བ་བཅུ་པ_ཟླ་བ་བཅུ་གཅིག་པ_ཟླ་བ་བཅུ་གཉིས་པ'.split('_'),
    monthsShort : 'ཟླ་བ་དང་པོ_ཟླ་བ་གཉིས་པ_ཟླ་བ་གསུམ་པ_ཟླ་བ་བཞི་པ_ཟླ་བ་ལྔ་པ_ཟླ་བ་དྲུག་པ_ཟླ་བ་བདུན་པ_ཟླ་བ་བརྒྱད་པ_ཟླ་བ་དགུ་པ_ཟླ་བ་བཅུ་པ_ཟླ་བ་བཅུ་གཅིག་པ_ཟླ་བ་བཅུ་གཉིས་པ'.split('_'),
    weekdays : 'གཟའ་ཉི་མ་_གཟའ་ཟླ་བ་_གཟའ་མིག་དམར་_གཟའ་ལྷག་པ་_གཟའ་ཕུར་བུ_གཟའ་པ་སངས་_གཟའ་སྤེན་པ་'.split('_'),
    weekdaysShort : 'ཉི་མ་_ཟླ་བ་_མིག་དམར་_ལྷག་པ་_ཕུར་བུ_པ་སངས་_སྤེན་པ་'.split('_'),
    weekdaysMin : 'ཉི་མ་_ཟླ་བ་_མིག་དམར་_ལྷག་པ་_ཕུར་བུ_པ་སངས་_སྤེན་པ་'.split('_'),
    longDateFormat : {
        LT : 'A h:mm',
        LTS : 'A h:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY, A h:mm',
        LLLL : 'dddd, D MMMM YYYY, A h:mm'
    },
    calendar : {
        sameDay : '[དི་རིང] LT',
        nextDay : '[སང་ཉིན] LT',
        nextWeek : '[བདུན་ཕྲག་རྗེས་མ], LT',
        lastDay : '[ཁ་སང] LT',
        lastWeek : '[བདུན་ཕྲག་མཐའ་མ] dddd, LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s ལ་',
        past : '%s སྔན་ལ',
        s : 'ལམ་སང',
        m : 'སྐར་མ་གཅིག',
        mm : '%d སྐར་མ',
        h : 'ཆུ་ཚོད་གཅིག',
        hh : '%d ཆུ་ཚོད',
        d : 'ཉིན་གཅིག',
        dd : '%d ཉིན་',
        M : 'ཟླ་བ་གཅིག',
        MM : '%d ཟླ་བ',
        y : 'ལོ་གཅིག',
        yy : '%d ལོ'
    },
    preparse: function (string) {
        return string.replace(/[༡༢༣༤༥༦༧༨༩༠]/g, function (match) {
            return numberMap$3[match];
        });
    },
    postformat: function (string) {
        return string.replace(/\d/g, function (match) {
            return symbolMap$4[match];
        });
    },
    meridiemParse: /མཚན་མོ|ཞོགས་ཀས|ཉིན་གུང|དགོང་དག|མཚན་མོ/,
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if ((meridiem === 'མཚན་མོ' && hour >= 4) ||
                (meridiem === 'ཉིན་གུང' && hour < 5) ||
                meridiem === 'དགོང་དག') {
            return hour + 12;
        } else {
            return hour;
        }
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 4) {
            return 'མཚན་མོ';
        } else if (hour < 10) {
            return 'ཞོགས་ཀས';
        } else if (hour < 17) {
            return 'ཉིན་གུང';
        } else if (hour < 20) {
            return 'དགོང་དག';
        } else {
            return 'མཚན་མོ';
        }
    },
    week : {
        dow : 0, // Sunday is the first day of the week.
        doy : 6  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Breton [br]
//! author : Jean-Baptiste Le Duigou : https://github.com/jbleduigou

function relativeTimeWithMutation(number, withoutSuffix, key) {
    var format = {
        'mm': 'munutenn',
        'MM': 'miz',
        'dd': 'devezh'
    };
    return number + ' ' + mutation(format[key], number);
}
function specialMutationForYears(number) {
    switch (lastNumber(number)) {
        case 1:
        case 3:
        case 4:
        case 5:
        case 9:
            return number + ' bloaz';
        default:
            return number + ' vloaz';
    }
}
function lastNumber(number) {
    if (number > 9) {
        return lastNumber(number % 10);
    }
    return number;
}
function mutation(text, number) {
    if (number === 2) {
        return softMutation(text);
    }
    return text;
}
function softMutation(text) {
    var mutationTable = {
        'm': 'v',
        'b': 'v',
        'd': 'z'
    };
    if (mutationTable[text.charAt(0)] === undefined) {
        return text;
    }
    return mutationTable[text.charAt(0)] + text.substring(1);
}

hooks.defineLocale('br', {
    months : 'Genver_C\'hwevrer_Meurzh_Ebrel_Mae_Mezheven_Gouere_Eost_Gwengolo_Here_Du_Kerzu'.split('_'),
    monthsShort : 'Gen_C\'hwe_Meu_Ebr_Mae_Eve_Gou_Eos_Gwe_Her_Du_Ker'.split('_'),
    weekdays : 'Sul_Lun_Meurzh_Merc\'her_Yaou_Gwener_Sadorn'.split('_'),
    weekdaysShort : 'Sul_Lun_Meu_Mer_Yao_Gwe_Sad'.split('_'),
    weekdaysMin : 'Su_Lu_Me_Mer_Ya_Gw_Sa'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'h[e]mm A',
        LTS : 'h[e]mm:ss A',
        L : 'DD/MM/YYYY',
        LL : 'D [a viz] MMMM YYYY',
        LLL : 'D [a viz] MMMM YYYY h[e]mm A',
        LLLL : 'dddd, D [a viz] MMMM YYYY h[e]mm A'
    },
    calendar : {
        sameDay : '[Hiziv da] LT',
        nextDay : '[Warc\'hoazh da] LT',
        nextWeek : 'dddd [da] LT',
        lastDay : '[Dec\'h da] LT',
        lastWeek : 'dddd [paset da] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'a-benn %s',
        past : '%s \'zo',
        s : 'un nebeud segondennoù',
        m : 'ur vunutenn',
        mm : relativeTimeWithMutation,
        h : 'un eur',
        hh : '%d eur',
        d : 'un devezh',
        dd : relativeTimeWithMutation,
        M : 'ur miz',
        MM : relativeTimeWithMutation,
        y : 'ur bloaz',
        yy : specialMutationForYears
    },
    dayOfMonthOrdinalParse: /\d{1,2}(añ|vet)/,
    ordinal : function (number) {
        var output = (number === 1) ? 'añ' : 'vet';
        return number + output;
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Bosnian [bs]
//! author : Nedim Cholich : https://github.com/frontyard
//! based on (hr) translation by Bojan Marković

function translate(number, withoutSuffix, key) {
    var result = number + ' ';
    switch (key) {
        case 'm':
            return withoutSuffix ? 'jedna minuta' : 'jedne minute';
        case 'mm':
            if (number === 1) {
                result += 'minuta';
            } else if (number === 2 || number === 3 || number === 4) {
                result += 'minute';
            } else {
                result += 'minuta';
            }
            return result;
        case 'h':
            return withoutSuffix ? 'jedan sat' : 'jednog sata';
        case 'hh':
            if (number === 1) {
                result += 'sat';
            } else if (number === 2 || number === 3 || number === 4) {
                result += 'sata';
            } else {
                result += 'sati';
            }
            return result;
        case 'dd':
            if (number === 1) {
                result += 'dan';
            } else {
                result += 'dana';
            }
            return result;
        case 'MM':
            if (number === 1) {
                result += 'mjesec';
            } else if (number === 2 || number === 3 || number === 4) {
                result += 'mjeseca';
            } else {
                result += 'mjeseci';
            }
            return result;
        case 'yy':
            if (number === 1) {
                result += 'godina';
            } else if (number === 2 || number === 3 || number === 4) {
                result += 'godine';
            } else {
                result += 'godina';
            }
            return result;
    }
}

hooks.defineLocale('bs', {
    months : 'januar_februar_mart_april_maj_juni_juli_august_septembar_oktobar_novembar_decembar'.split('_'),
    monthsShort : 'jan._feb._mar._apr._maj._jun._jul._aug._sep._okt._nov._dec.'.split('_'),
    monthsParseExact: true,
    weekdays : 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split('_'),
    weekdaysShort : 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
    weekdaysMin : 'ne_po_ut_sr_če_pe_su'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'H:mm',
        LTS : 'H:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D. MMMM YYYY',
        LLL : 'D. MMMM YYYY H:mm',
        LLLL : 'dddd, D. MMMM YYYY H:mm'
    },
    calendar : {
        sameDay  : '[danas u] LT',
        nextDay  : '[sutra u] LT',
        nextWeek : function () {
            switch (this.day()) {
                case 0:
                    return '[u] [nedjelju] [u] LT';
                case 3:
                    return '[u] [srijedu] [u] LT';
                case 6:
                    return '[u] [subotu] [u] LT';
                case 1:
                case 2:
                case 4:
                case 5:
                    return '[u] dddd [u] LT';
            }
        },
        lastDay  : '[jučer u] LT',
        lastWeek : function () {
            switch (this.day()) {
                case 0:
                case 3:
                    return '[prošlu] dddd [u] LT';
                case 6:
                    return '[prošle] [subote] [u] LT';
                case 1:
                case 2:
                case 4:
                case 5:
                    return '[prošli] dddd [u] LT';
            }
        },
        sameElse : 'L'
    },
    relativeTime : {
        future : 'za %s',
        past   : 'prije %s',
        s      : 'par sekundi',
        m      : translate,
        mm     : translate,
        h      : translate,
        hh     : translate,
        d      : 'dan',
        dd     : translate,
        M      : 'mjesec',
        MM     : translate,
        y      : 'godinu',
        yy     : translate
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Catalan [ca]
//! author : Juan G. Hurtado : https://github.com/juanghurtado

hooks.defineLocale('ca', {
    months : {
        standalone: 'gener_febrer_març_abril_maig_juny_juliol_agost_setembre_octubre_novembre_desembre'.split('_'),
        format: 'de gener_de febrer_de març_d\'abril_de maig_de juny_de juliol_d\'agost_de setembre_d\'octubre_de novembre_de desembre'.split('_'),
        isFormat: /D[oD]?(\s)+MMMM/
    },
    monthsShort : 'gen._febr._març_abr._maig_juny_jul._ag._set._oct._nov._des.'.split('_'),
    monthsParseExact : true,
    weekdays : 'diumenge_dilluns_dimarts_dimecres_dijous_divendres_dissabte'.split('_'),
    weekdaysShort : 'dg._dl._dt._dc._dj._dv._ds.'.split('_'),
    weekdaysMin : 'dg_dl_dt_dc_dj_dv_ds'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'H:mm',
        LTS : 'H:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM [de] YYYY',
        ll : 'D MMM YYYY',
        LLL : 'D MMMM [de] YYYY [a les] H:mm',
        lll : 'D MMM YYYY, H:mm',
        LLLL : 'dddd D MMMM [de] YYYY [a les] H:mm',
        llll : 'ddd D MMM YYYY, H:mm'
    },
    calendar : {
        sameDay : function () {
            return '[avui a ' + ((this.hours() !== 1) ? 'les' : 'la') + '] LT';
        },
        nextDay : function () {
            return '[demà a ' + ((this.hours() !== 1) ? 'les' : 'la') + '] LT';
        },
        nextWeek : function () {
            return 'dddd [a ' + ((this.hours() !== 1) ? 'les' : 'la') + '] LT';
        },
        lastDay : function () {
            return '[ahir a ' + ((this.hours() !== 1) ? 'les' : 'la') + '] LT';
        },
        lastWeek : function () {
            return '[el] dddd [passat a ' + ((this.hours() !== 1) ? 'les' : 'la') + '] LT';
        },
        sameElse : 'L'
    },
    relativeTime : {
        future : 'd\'aquí %s',
        past : 'fa %s',
        s : 'uns segons',
        m : 'un minut',
        mm : '%d minuts',
        h : 'una hora',
        hh : '%d hores',
        d : 'un dia',
        dd : '%d dies',
        M : 'un mes',
        MM : '%d mesos',
        y : 'un any',
        yy : '%d anys'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(r|n|t|è|a)/,
    ordinal : function (number, period) {
        var output = (number === 1) ? 'r' :
            (number === 2) ? 'n' :
            (number === 3) ? 'r' :
            (number === 4) ? 't' : 'è';
        if (period === 'w' || period === 'W') {
            output = 'a';
        }
        return number + output;
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Czech [cs]
//! author : petrbela : https://github.com/petrbela

var months$3 = 'leden_únor_březen_duben_květen_červen_červenec_srpen_září_říjen_listopad_prosinec'.split('_');
var monthsShort = 'led_úno_bře_dub_kvě_čvn_čvc_srp_zář_říj_lis_pro'.split('_');
function plural$1(n) {
    return (n > 1) && (n < 5) && (~~(n / 10) !== 1);
}
function translate$1(number, withoutSuffix, key, isFuture) {
    var result = number + ' ';
    switch (key) {
        case 's':  // a few seconds / in a few seconds / a few seconds ago
            return (withoutSuffix || isFuture) ? 'pár sekund' : 'pár sekundami';
        case 'm':  // a minute / in a minute / a minute ago
            return withoutSuffix ? 'minuta' : (isFuture ? 'minutu' : 'minutou');
        case 'mm': // 9 minutes / in 9 minutes / 9 minutes ago
            if (withoutSuffix || isFuture) {
                return result + (plural$1(number) ? 'minuty' : 'minut');
            } else {
                return result + 'minutami';
            }
            break;
        case 'h':  // an hour / in an hour / an hour ago
            return withoutSuffix ? 'hodina' : (isFuture ? 'hodinu' : 'hodinou');
        case 'hh': // 9 hours / in 9 hours / 9 hours ago
            if (withoutSuffix || isFuture) {
                return result + (plural$1(number) ? 'hodiny' : 'hodin');
            } else {
                return result + 'hodinami';
            }
            break;
        case 'd':  // a day / in a day / a day ago
            return (withoutSuffix || isFuture) ? 'den' : 'dnem';
        case 'dd': // 9 days / in 9 days / 9 days ago
            if (withoutSuffix || isFuture) {
                return result + (plural$1(number) ? 'dny' : 'dní');
            } else {
                return result + 'dny';
            }
            break;
        case 'M':  // a month / in a month / a month ago
            return (withoutSuffix || isFuture) ? 'měsíc' : 'měsícem';
        case 'MM': // 9 months / in 9 months / 9 months ago
            if (withoutSuffix || isFuture) {
                return result + (plural$1(number) ? 'měsíce' : 'měsíců');
            } else {
                return result + 'měsíci';
            }
            break;
        case 'y':  // a year / in a year / a year ago
            return (withoutSuffix || isFuture) ? 'rok' : 'rokem';
        case 'yy': // 9 years / in 9 years / 9 years ago
            if (withoutSuffix || isFuture) {
                return result + (plural$1(number) ? 'roky' : 'let');
            } else {
                return result + 'lety';
            }
            break;
    }
}

hooks.defineLocale('cs', {
    months : months$3,
    monthsShort : monthsShort,
    monthsParse : (function (months, monthsShort) {
        var i, _monthsParse = [];
        for (i = 0; i < 12; i++) {
            // use custom parser to solve problem with July (červenec)
            _monthsParse[i] = new RegExp('^' + months[i] + '$|^' + monthsShort[i] + '$', 'i');
        }
        return _monthsParse;
    }(months$3, monthsShort)),
    shortMonthsParse : (function (monthsShort) {
        var i, _shortMonthsParse = [];
        for (i = 0; i < 12; i++) {
            _shortMonthsParse[i] = new RegExp('^' + monthsShort[i] + '$', 'i');
        }
        return _shortMonthsParse;
    }(monthsShort)),
    longMonthsParse : (function (months) {
        var i, _longMonthsParse = [];
        for (i = 0; i < 12; i++) {
            _longMonthsParse[i] = new RegExp('^' + months[i] + '$', 'i');
        }
        return _longMonthsParse;
    }(months$3)),
    weekdays : 'neděle_pondělí_úterý_středa_čtvrtek_pátek_sobota'.split('_'),
    weekdaysShort : 'ne_po_út_st_čt_pá_so'.split('_'),
    weekdaysMin : 'ne_po_út_st_čt_pá_so'.split('_'),
    longDateFormat : {
        LT: 'H:mm',
        LTS : 'H:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D. MMMM YYYY',
        LLL : 'D. MMMM YYYY H:mm',
        LLLL : 'dddd D. MMMM YYYY H:mm',
        l : 'D. M. YYYY'
    },
    calendar : {
        sameDay: '[dnes v] LT',
        nextDay: '[zítra v] LT',
        nextWeek: function () {
            switch (this.day()) {
                case 0:
                    return '[v neděli v] LT';
                case 1:
                case 2:
                    return '[v] dddd [v] LT';
                case 3:
                    return '[ve středu v] LT';
                case 4:
                    return '[ve čtvrtek v] LT';
                case 5:
                    return '[v pátek v] LT';
                case 6:
                    return '[v sobotu v] LT';
            }
        },
        lastDay: '[včera v] LT',
        lastWeek: function () {
            switch (this.day()) {
                case 0:
                    return '[minulou neděli v] LT';
                case 1:
                case 2:
                    return '[minulé] dddd [v] LT';
                case 3:
                    return '[minulou středu v] LT';
                case 4:
                case 5:
                    return '[minulý] dddd [v] LT';
                case 6:
                    return '[minulou sobotu v] LT';
            }
        },
        sameElse: 'L'
    },
    relativeTime : {
        future : 'za %s',
        past : 'před %s',
        s : translate$1,
        m : translate$1,
        mm : translate$1,
        h : translate$1,
        hh : translate$1,
        d : translate$1,
        dd : translate$1,
        M : translate$1,
        MM : translate$1,
        y : translate$1,
        yy : translate$1
    },
    dayOfMonthOrdinalParse : /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Chuvash [cv]
//! author : Anatoly Mironov : https://github.com/mirontoli

hooks.defineLocale('cv', {
    months : 'кӑрлач_нарӑс_пуш_ака_май_ҫӗртме_утӑ_ҫурла_авӑн_юпа_чӳк_раштав'.split('_'),
    monthsShort : 'кӑр_нар_пуш_ака_май_ҫӗр_утӑ_ҫур_авн_юпа_чӳк_раш'.split('_'),
    weekdays : 'вырсарникун_тунтикун_ытларикун_юнкун_кӗҫнерникун_эрнекун_шӑматкун'.split('_'),
    weekdaysShort : 'выр_тун_ытл_юн_кӗҫ_эрн_шӑм'.split('_'),
    weekdaysMin : 'вр_тн_ыт_юн_кҫ_эр_шм'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD-MM-YYYY',
        LL : 'YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ]',
        LLL : 'YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ], HH:mm',
        LLLL : 'dddd, YYYY [ҫулхи] MMMM [уйӑхӗн] D[-мӗшӗ], HH:mm'
    },
    calendar : {
        sameDay: '[Паян] LT [сехетре]',
        nextDay: '[Ыран] LT [сехетре]',
        lastDay: '[Ӗнер] LT [сехетре]',
        nextWeek: '[Ҫитес] dddd LT [сехетре]',
        lastWeek: '[Иртнӗ] dddd LT [сехетре]',
        sameElse: 'L'
    },
    relativeTime : {
        future : function (output) {
            var affix = /сехет$/i.exec(output) ? 'рен' : /ҫул$/i.exec(output) ? 'тан' : 'ран';
            return output + affix;
        },
        past : '%s каялла',
        s : 'пӗр-ик ҫеккунт',
        m : 'пӗр минут',
        mm : '%d минут',
        h : 'пӗр сехет',
        hh : '%d сехет',
        d : 'пӗр кун',
        dd : '%d кун',
        M : 'пӗр уйӑх',
        MM : '%d уйӑх',
        y : 'пӗр ҫул',
        yy : '%d ҫул'
    },
    dayOfMonthOrdinalParse: /\d{1,2}-мӗш/,
    ordinal : '%d-мӗш',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Welsh [cy]
//! author : Robert Allen : https://github.com/robgallen
//! author : https://github.com/ryangreaves

hooks.defineLocale('cy', {
    months: 'Ionawr_Chwefror_Mawrth_Ebrill_Mai_Mehefin_Gorffennaf_Awst_Medi_Hydref_Tachwedd_Rhagfyr'.split('_'),
    monthsShort: 'Ion_Chwe_Maw_Ebr_Mai_Meh_Gor_Aws_Med_Hyd_Tach_Rhag'.split('_'),
    weekdays: 'Dydd Sul_Dydd Llun_Dydd Mawrth_Dydd Mercher_Dydd Iau_Dydd Gwener_Dydd Sadwrn'.split('_'),
    weekdaysShort: 'Sul_Llun_Maw_Mer_Iau_Gwe_Sad'.split('_'),
    weekdaysMin: 'Su_Ll_Ma_Me_Ia_Gw_Sa'.split('_'),
    weekdaysParseExact : true,
    // time formats are the same as en-gb
    longDateFormat: {
        LT: 'HH:mm',
        LTS : 'HH:mm:ss',
        L: 'DD/MM/YYYY',
        LL: 'D MMMM YYYY',
        LLL: 'D MMMM YYYY HH:mm',
        LLLL: 'dddd, D MMMM YYYY HH:mm'
    },
    calendar: {
        sameDay: '[Heddiw am] LT',
        nextDay: '[Yfory am] LT',
        nextWeek: 'dddd [am] LT',
        lastDay: '[Ddoe am] LT',
        lastWeek: 'dddd [diwethaf am] LT',
        sameElse: 'L'
    },
    relativeTime: {
        future: 'mewn %s',
        past: '%s yn ôl',
        s: 'ychydig eiliadau',
        m: 'munud',
        mm: '%d munud',
        h: 'awr',
        hh: '%d awr',
        d: 'diwrnod',
        dd: '%d diwrnod',
        M: 'mis',
        MM: '%d mis',
        y: 'blwyddyn',
        yy: '%d flynedd'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(fed|ain|af|il|ydd|ed|eg)/,
    // traditional ordinal numbers above 31 are not commonly used in colloquial Welsh
    ordinal: function (number) {
        var b = number,
            output = '',
            lookup = [
                '', 'af', 'il', 'ydd', 'ydd', 'ed', 'ed', 'ed', 'fed', 'fed', 'fed', // 1af to 10fed
                'eg', 'fed', 'eg', 'eg', 'fed', 'eg', 'eg', 'fed', 'eg', 'fed' // 11eg to 20fed
            ];
        if (b > 20) {
            if (b === 40 || b === 50 || b === 60 || b === 80 || b === 100) {
                output = 'fed'; // not 30ain, 70ain or 90ain
            } else {
                output = 'ain';
            }
        } else if (b > 0) {
            output = lookup[b];
        }
        return number + output;
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Danish [da]
//! author : Ulrik Nielsen : https://github.com/mrbase

hooks.defineLocale('da', {
    months : 'januar_februar_marts_april_maj_juni_juli_august_september_oktober_november_december'.split('_'),
    monthsShort : 'jan_feb_mar_apr_maj_jun_jul_aug_sep_okt_nov_dec'.split('_'),
    weekdays : 'søndag_mandag_tirsdag_onsdag_torsdag_fredag_lørdag'.split('_'),
    weekdaysShort : 'søn_man_tir_ons_tor_fre_lør'.split('_'),
    weekdaysMin : 'sø_ma_ti_on_to_fr_lø'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D. MMMM YYYY',
        LLL : 'D. MMMM YYYY HH:mm',
        LLLL : 'dddd [d.] D. MMMM YYYY [kl.] HH:mm'
    },
    calendar : {
        sameDay : '[i dag kl.] LT',
        nextDay : '[i morgen kl.] LT',
        nextWeek : 'på dddd [kl.] LT',
        lastDay : '[i går kl.] LT',
        lastWeek : '[i] dddd[s kl.] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'om %s',
        past : '%s siden',
        s : 'få sekunder',
        m : 'et minut',
        mm : '%d minutter',
        h : 'en time',
        hh : '%d timer',
        d : 'en dag',
        dd : '%d dage',
        M : 'en måned',
        MM : '%d måneder',
        y : 'et år',
        yy : '%d år'
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : German (Austria) [de-at]
//! author : lluchs : https://github.com/lluchs
//! author: Menelion Elensúle: https://github.com/Oire
//! author : Martin Groller : https://github.com/MadMG
//! author : Mikolaj Dadela : https://github.com/mik01aj

function processRelativeTime(number, withoutSuffix, key, isFuture) {
    var format = {
        'm': ['eine Minute', 'einer Minute'],
        'h': ['eine Stunde', 'einer Stunde'],
        'd': ['ein Tag', 'einem Tag'],
        'dd': [number + ' Tage', number + ' Tagen'],
        'M': ['ein Monat', 'einem Monat'],
        'MM': [number + ' Monate', number + ' Monaten'],
        'y': ['ein Jahr', 'einem Jahr'],
        'yy': [number + ' Jahre', number + ' Jahren']
    };
    return withoutSuffix ? format[key][0] : format[key][1];
}

hooks.defineLocale('de-at', {
    months : 'Jänner_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split('_'),
    monthsShort : 'Jän._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
    monthsParseExact : true,
    weekdays : 'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split('_'),
    weekdaysShort : 'So._Mo._Di._Mi._Do._Fr._Sa.'.split('_'),
    weekdaysMin : 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT: 'HH:mm',
        LTS: 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D. MMMM YYYY',
        LLL : 'D. MMMM YYYY HH:mm',
        LLLL : 'dddd, D. MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[heute um] LT [Uhr]',
        sameElse: 'L',
        nextDay: '[morgen um] LT [Uhr]',
        nextWeek: 'dddd [um] LT [Uhr]',
        lastDay: '[gestern um] LT [Uhr]',
        lastWeek: '[letzten] dddd [um] LT [Uhr]'
    },
    relativeTime : {
        future : 'in %s',
        past : 'vor %s',
        s : 'ein paar Sekunden',
        m : processRelativeTime,
        mm : '%d Minuten',
        h : processRelativeTime,
        hh : '%d Stunden',
        d : processRelativeTime,
        dd : processRelativeTime,
        M : processRelativeTime,
        MM : processRelativeTime,
        y : processRelativeTime,
        yy : processRelativeTime
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : German (Switzerland) [de-ch]
//! author : sschueller : https://github.com/sschueller

// based on: https://www.bk.admin.ch/dokumentation/sprachen/04915/05016/index.html?lang=de#

function processRelativeTime$1(number, withoutSuffix, key, isFuture) {
    var format = {
        'm': ['eine Minute', 'einer Minute'],
        'h': ['eine Stunde', 'einer Stunde'],
        'd': ['ein Tag', 'einem Tag'],
        'dd': [number + ' Tage', number + ' Tagen'],
        'M': ['ein Monat', 'einem Monat'],
        'MM': [number + ' Monate', number + ' Monaten'],
        'y': ['ein Jahr', 'einem Jahr'],
        'yy': [number + ' Jahre', number + ' Jahren']
    };
    return withoutSuffix ? format[key][0] : format[key][1];
}

hooks.defineLocale('de-ch', {
    months : 'Januar_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split('_'),
    monthsShort : 'Jan._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
    monthsParseExact : true,
    weekdays : 'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split('_'),
    weekdaysShort : 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
    weekdaysMin : 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT: 'HH.mm',
        LTS: 'HH.mm.ss',
        L : 'DD.MM.YYYY',
        LL : 'D. MMMM YYYY',
        LLL : 'D. MMMM YYYY HH.mm',
        LLLL : 'dddd, D. MMMM YYYY HH.mm'
    },
    calendar : {
        sameDay: '[heute um] LT [Uhr]',
        sameElse: 'L',
        nextDay: '[morgen um] LT [Uhr]',
        nextWeek: 'dddd [um] LT [Uhr]',
        lastDay: '[gestern um] LT [Uhr]',
        lastWeek: '[letzten] dddd [um] LT [Uhr]'
    },
    relativeTime : {
        future : 'in %s',
        past : 'vor %s',
        s : 'ein paar Sekunden',
        m : processRelativeTime$1,
        mm : '%d Minuten',
        h : processRelativeTime$1,
        hh : '%d Stunden',
        d : processRelativeTime$1,
        dd : processRelativeTime$1,
        M : processRelativeTime$1,
        MM : processRelativeTime$1,
        y : processRelativeTime$1,
        yy : processRelativeTime$1
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : German [de]
//! author : lluchs : https://github.com/lluchs
//! author: Menelion Elensúle: https://github.com/Oire
//! author : Mikolaj Dadela : https://github.com/mik01aj

function processRelativeTime$2(number, withoutSuffix, key, isFuture) {
    var format = {
        'm': ['eine Minute', 'einer Minute'],
        'h': ['eine Stunde', 'einer Stunde'],
        'd': ['ein Tag', 'einem Tag'],
        'dd': [number + ' Tage', number + ' Tagen'],
        'M': ['ein Monat', 'einem Monat'],
        'MM': [number + ' Monate', number + ' Monaten'],
        'y': ['ein Jahr', 'einem Jahr'],
        'yy': [number + ' Jahre', number + ' Jahren']
    };
    return withoutSuffix ? format[key][0] : format[key][1];
}

hooks.defineLocale('de', {
    months : 'Januar_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split('_'),
    monthsShort : 'Jan._Feb._März_Apr._Mai_Juni_Juli_Aug._Sep._Okt._Nov._Dez.'.split('_'),
    monthsParseExact : true,
    weekdays : 'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split('_'),
    weekdaysShort : 'So._Mo._Di._Mi._Do._Fr._Sa.'.split('_'),
    weekdaysMin : 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT: 'HH:mm',
        LTS: 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D. MMMM YYYY',
        LLL : 'D. MMMM YYYY HH:mm',
        LLLL : 'dddd, D. MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[heute um] LT [Uhr]',
        sameElse: 'L',
        nextDay: '[morgen um] LT [Uhr]',
        nextWeek: 'dddd [um] LT [Uhr]',
        lastDay: '[gestern um] LT [Uhr]',
        lastWeek: '[letzten] dddd [um] LT [Uhr]'
    },
    relativeTime : {
        future : 'in %s',
        past : 'vor %s',
        s : 'ein paar Sekunden',
        m : processRelativeTime$2,
        mm : '%d Minuten',
        h : processRelativeTime$2,
        hh : '%d Stunden',
        d : processRelativeTime$2,
        dd : processRelativeTime$2,
        M : processRelativeTime$2,
        MM : processRelativeTime$2,
        y : processRelativeTime$2,
        yy : processRelativeTime$2
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Maldivian [dv]
//! author : Jawish Hameed : https://github.com/jawish

var months$4 = [
    'ޖެނުއަރީ',
    'ފެބްރުއަރީ',
    'މާރިޗު',
    'އޭޕްރީލު',
    'މޭ',
    'ޖޫން',
    'ޖުލައި',
    'އޯގަސްޓު',
    'ސެޕްޓެމްބަރު',
    'އޮކްޓޯބަރު',
    'ނޮވެމްބަރު',
    'ޑިސެމްބަރު'
];
var weekdays = [
    'އާދިއްތަ',
    'ހޯމަ',
    'އަންގާރަ',
    'ބުދަ',
    'ބުރާސްފަތި',
    'ހުކުރު',
    'ހޮނިހިރު'
];

hooks.defineLocale('dv', {
    months : months$4,
    monthsShort : months$4,
    weekdays : weekdays,
    weekdaysShort : weekdays,
    weekdaysMin : 'އާދި_ހޯމަ_އަން_ބުދަ_ބުރާ_ހުކު_ހޮނި'.split('_'),
    longDateFormat : {

        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'D/M/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    meridiemParse: /މކ|މފ/,
    isPM : function (input) {
        return 'މފ' === input;
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 12) {
            return 'މކ';
        } else {
            return 'މފ';
        }
    },
    calendar : {
        sameDay : '[މިއަދު] LT',
        nextDay : '[މާދަމާ] LT',
        nextWeek : 'dddd LT',
        lastDay : '[އިއްޔެ] LT',
        lastWeek : '[ފާއިތުވި] dddd LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'ތެރޭގައި %s',
        past : 'ކުރިން %s',
        s : 'ސިކުންތުކޮޅެއް',
        m : 'މިނިޓެއް',
        mm : 'މިނިޓު %d',
        h : 'ގަޑިއިރެއް',
        hh : 'ގަޑިއިރު %d',
        d : 'ދުވަހެއް',
        dd : 'ދުވަސް %d',
        M : 'މަހެއް',
        MM : 'މަސް %d',
        y : 'އަހަރެއް',
        yy : 'އަހަރު %d'
    },
    preparse: function (string) {
        return string.replace(/،/g, ',');
    },
    postformat: function (string) {
        return string.replace(/,/g, '،');
    },
    week : {
        dow : 7,  // Sunday is the first day of the week.
        doy : 12  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Greek [el]
//! author : Aggelos Karalias : https://github.com/mehiel

hooks.defineLocale('el', {
    monthsNominativeEl : 'Ιανουάριος_Φεβρουάριος_Μάρτιος_Απρίλιος_Μάιος_Ιούνιος_Ιούλιος_Αύγουστος_Σεπτέμβριος_Οκτώβριος_Νοέμβριος_Δεκέμβριος'.split('_'),
    monthsGenitiveEl : 'Ιανουαρίου_Φεβρουαρίου_Μαρτίου_Απριλίου_Μαΐου_Ιουνίου_Ιουλίου_Αυγούστου_Σεπτεμβρίου_Οκτωβρίου_Νοεμβρίου_Δεκεμβρίου'.split('_'),
    months : function (momentToFormat, format) {
        if (!momentToFormat) {
            return this._monthsNominativeEl;
        } else if (typeof format === 'string' && /D/.test(format.substring(0, format.indexOf('MMMM')))) { // if there is a day number before 'MMMM'
            return this._monthsGenitiveEl[momentToFormat.month()];
        } else {
            return this._monthsNominativeEl[momentToFormat.month()];
        }
    },
    monthsShort : 'Ιαν_Φεβ_Μαρ_Απρ_Μαϊ_Ιουν_Ιουλ_Αυγ_Σεπ_Οκτ_Νοε_Δεκ'.split('_'),
    weekdays : 'Κυριακή_Δευτέρα_Τρίτη_Τετάρτη_Πέμπτη_Παρασκευή_Σάββατο'.split('_'),
    weekdaysShort : 'Κυρ_Δευ_Τρι_Τετ_Πεμ_Παρ_Σαβ'.split('_'),
    weekdaysMin : 'Κυ_Δε_Τρ_Τε_Πε_Πα_Σα'.split('_'),
    meridiem : function (hours, minutes, isLower) {
        if (hours > 11) {
            return isLower ? 'μμ' : 'ΜΜ';
        } else {
            return isLower ? 'πμ' : 'ΠΜ';
        }
    },
    isPM : function (input) {
        return ((input + '').toLowerCase()[0] === 'μ');
    },
    meridiemParse : /[ΠΜ]\.?Μ?\.?/i,
    longDateFormat : {
        LT : 'h:mm A',
        LTS : 'h:mm:ss A',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY h:mm A',
        LLLL : 'dddd, D MMMM YYYY h:mm A'
    },
    calendarEl : {
        sameDay : '[Σήμερα {}] LT',
        nextDay : '[Αύριο {}] LT',
        nextWeek : 'dddd [{}] LT',
        lastDay : '[Χθες {}] LT',
        lastWeek : function () {
            switch (this.day()) {
                case 6:
                    return '[το προηγούμενο] dddd [{}] LT';
                default:
                    return '[την προηγούμενη] dddd [{}] LT';
            }
        },
        sameElse : 'L'
    },
    calendar : function (key, mom) {
        var output = this._calendarEl[key],
            hours = mom && mom.hours();
        if (isFunction(output)) {
            output = output.apply(mom);
        }
        return output.replace('{}', (hours % 12 === 1 ? 'στη' : 'στις'));
    },
    relativeTime : {
        future : 'σε %s',
        past : '%s πριν',
        s : 'λίγα δευτερόλεπτα',
        m : 'ένα λεπτό',
        mm : '%d λεπτά',
        h : 'μία ώρα',
        hh : '%d ώρες',
        d : 'μία μέρα',
        dd : '%d μέρες',
        M : 'ένας μήνας',
        MM : '%d μήνες',
        y : 'ένας χρόνος',
        yy : '%d χρόνια'
    },
    dayOfMonthOrdinalParse: /\d{1,2}η/,
    ordinal: '%dη',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : English (Australia) [en-au]
//! author : Jared Morse : https://github.com/jarcoal

hooks.defineLocale('en-au', {
    months : 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_'),
    monthsShort : 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
    weekdays : 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_'),
    weekdaysShort : 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
    weekdaysMin : 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
    longDateFormat : {
        LT : 'h:mm A',
        LTS : 'h:mm:ss A',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY h:mm A',
        LLLL : 'dddd, D MMMM YYYY h:mm A'
    },
    calendar : {
        sameDay : '[Today at] LT',
        nextDay : '[Tomorrow at] LT',
        nextWeek : 'dddd [at] LT',
        lastDay : '[Yesterday at] LT',
        lastWeek : '[Last] dddd [at] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'in %s',
        past : '%s ago',
        s : 'a few seconds',
        m : 'a minute',
        mm : '%d minutes',
        h : 'an hour',
        hh : '%d hours',
        d : 'a day',
        dd : '%d days',
        M : 'a month',
        MM : '%d months',
        y : 'a year',
        yy : '%d years'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
    ordinal : function (number) {
        var b = number % 10,
            output = (~~(number % 100 / 10) === 1) ? 'th' :
            (b === 1) ? 'st' :
            (b === 2) ? 'nd' :
            (b === 3) ? 'rd' : 'th';
        return number + output;
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : English (Canada) [en-ca]
//! author : Jonathan Abourbih : https://github.com/jonbca

hooks.defineLocale('en-ca', {
    months : 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_'),
    monthsShort : 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
    weekdays : 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_'),
    weekdaysShort : 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
    weekdaysMin : 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
    longDateFormat : {
        LT : 'h:mm A',
        LTS : 'h:mm:ss A',
        L : 'YYYY-MM-DD',
        LL : 'MMMM D, YYYY',
        LLL : 'MMMM D, YYYY h:mm A',
        LLLL : 'dddd, MMMM D, YYYY h:mm A'
    },
    calendar : {
        sameDay : '[Today at] LT',
        nextDay : '[Tomorrow at] LT',
        nextWeek : 'dddd [at] LT',
        lastDay : '[Yesterday at] LT',
        lastWeek : '[Last] dddd [at] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'in %s',
        past : '%s ago',
        s : 'a few seconds',
        m : 'a minute',
        mm : '%d minutes',
        h : 'an hour',
        hh : '%d hours',
        d : 'a day',
        dd : '%d days',
        M : 'a month',
        MM : '%d months',
        y : 'a year',
        yy : '%d years'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
    ordinal : function (number) {
        var b = number % 10,
            output = (~~(number % 100 / 10) === 1) ? 'th' :
            (b === 1) ? 'st' :
            (b === 2) ? 'nd' :
            (b === 3) ? 'rd' : 'th';
        return number + output;
    }
});

//! moment.js locale configuration
//! locale : English (United Kingdom) [en-gb]
//! author : Chris Gedrim : https://github.com/chrisgedrim

hooks.defineLocale('en-gb', {
    months : 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_'),
    monthsShort : 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
    weekdays : 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_'),
    weekdaysShort : 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
    weekdaysMin : 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[Today at] LT',
        nextDay : '[Tomorrow at] LT',
        nextWeek : 'dddd [at] LT',
        lastDay : '[Yesterday at] LT',
        lastWeek : '[Last] dddd [at] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'in %s',
        past : '%s ago',
        s : 'a few seconds',
        m : 'a minute',
        mm : '%d minutes',
        h : 'an hour',
        hh : '%d hours',
        d : 'a day',
        dd : '%d days',
        M : 'a month',
        MM : '%d months',
        y : 'a year',
        yy : '%d years'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
    ordinal : function (number) {
        var b = number % 10,
            output = (~~(number % 100 / 10) === 1) ? 'th' :
            (b === 1) ? 'st' :
            (b === 2) ? 'nd' :
            (b === 3) ? 'rd' : 'th';
        return number + output;
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : English (Ireland) [en-ie]
//! author : Chris Cartlidge : https://github.com/chriscartlidge

hooks.defineLocale('en-ie', {
    months : 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_'),
    monthsShort : 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
    weekdays : 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_'),
    weekdaysShort : 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
    weekdaysMin : 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD-MM-YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[Today at] LT',
        nextDay : '[Tomorrow at] LT',
        nextWeek : 'dddd [at] LT',
        lastDay : '[Yesterday at] LT',
        lastWeek : '[Last] dddd [at] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'in %s',
        past : '%s ago',
        s : 'a few seconds',
        m : 'a minute',
        mm : '%d minutes',
        h : 'an hour',
        hh : '%d hours',
        d : 'a day',
        dd : '%d days',
        M : 'a month',
        MM : '%d months',
        y : 'a year',
        yy : '%d years'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
    ordinal : function (number) {
        var b = number % 10,
            output = (~~(number % 100 / 10) === 1) ? 'th' :
            (b === 1) ? 'st' :
            (b === 2) ? 'nd' :
            (b === 3) ? 'rd' : 'th';
        return number + output;
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : English (New Zealand) [en-nz]
//! author : Luke McGregor : https://github.com/lukemcgregor

hooks.defineLocale('en-nz', {
    months : 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_'),
    monthsShort : 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
    weekdays : 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_'),
    weekdaysShort : 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
    weekdaysMin : 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
    longDateFormat : {
        LT : 'h:mm A',
        LTS : 'h:mm:ss A',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY h:mm A',
        LLLL : 'dddd, D MMMM YYYY h:mm A'
    },
    calendar : {
        sameDay : '[Today at] LT',
        nextDay : '[Tomorrow at] LT',
        nextWeek : 'dddd [at] LT',
        lastDay : '[Yesterday at] LT',
        lastWeek : '[Last] dddd [at] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'in %s',
        past : '%s ago',
        s : 'a few seconds',
        m : 'a minute',
        mm : '%d minutes',
        h : 'an hour',
        hh : '%d hours',
        d : 'a day',
        dd : '%d days',
        M : 'a month',
        MM : '%d months',
        y : 'a year',
        yy : '%d years'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
    ordinal : function (number) {
        var b = number % 10,
            output = (~~(number % 100 / 10) === 1) ? 'th' :
            (b === 1) ? 'st' :
            (b === 2) ? 'nd' :
            (b === 3) ? 'rd' : 'th';
        return number + output;
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Esperanto [eo]
//! author : Colin Dean : https://github.com/colindean
//! author : Mia Nordentoft Imperatori : https://github.com/miestasmia
//! comment : miestasmia corrected the translation by colindean

hooks.defineLocale('eo', {
    months : 'januaro_februaro_marto_aprilo_majo_junio_julio_aŭgusto_septembro_oktobro_novembro_decembro'.split('_'),
    monthsShort : 'jan_feb_mar_apr_maj_jun_jul_aŭg_sep_okt_nov_dec'.split('_'),
    weekdays : 'dimanĉo_lundo_mardo_merkredo_ĵaŭdo_vendredo_sabato'.split('_'),
    weekdaysShort : 'dim_lun_mard_merk_ĵaŭ_ven_sab'.split('_'),
    weekdaysMin : 'di_lu_ma_me_ĵa_ve_sa'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'YYYY-MM-DD',
        LL : 'D[-a de] MMMM, YYYY',
        LLL : 'D[-a de] MMMM, YYYY HH:mm',
        LLLL : 'dddd, [la] D[-a de] MMMM, YYYY HH:mm'
    },
    meridiemParse: /[ap]\.t\.m/i,
    isPM: function (input) {
        return input.charAt(0).toLowerCase() === 'p';
    },
    meridiem : function (hours, minutes, isLower) {
        if (hours > 11) {
            return isLower ? 'p.t.m.' : 'P.T.M.';
        } else {
            return isLower ? 'a.t.m.' : 'A.T.M.';
        }
    },
    calendar : {
        sameDay : '[Hodiaŭ je] LT',
        nextDay : '[Morgaŭ je] LT',
        nextWeek : 'dddd [je] LT',
        lastDay : '[Hieraŭ je] LT',
        lastWeek : '[pasinta] dddd [je] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'post %s',
        past : 'antaŭ %s',
        s : 'sekundoj',
        m : 'minuto',
        mm : '%d minutoj',
        h : 'horo',
        hh : '%d horoj',
        d : 'tago',//ne 'diurno', ĉar estas uzita por proksimumo
        dd : '%d tagoj',
        M : 'monato',
        MM : '%d monatoj',
        y : 'jaro',
        yy : '%d jaroj'
    },
    dayOfMonthOrdinalParse: /\d{1,2}a/,
    ordinal : '%da',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Spanish (Dominican Republic) [es-do]

var monthsShortDot = 'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split('_');
var monthsShort$1 = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_');

var monthsParse = [/^ene/i, /^feb/i, /^mar/i, /^abr/i, /^may/i, /^jun/i, /^jul/i, /^ago/i, /^sep/i, /^oct/i, /^nov/i, /^dic/i];
var monthsRegex$1 = /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;

hooks.defineLocale('es-do', {
    months : 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split('_'),
    monthsShort : function (m, format) {
        if (!m) {
            return monthsShortDot;
        } else if (/-MMM-/.test(format)) {
            return monthsShort$1[m.month()];
        } else {
            return monthsShortDot[m.month()];
        }
    },
    monthsRegex: monthsRegex$1,
    monthsShortRegex: monthsRegex$1,
    monthsStrictRegex: /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
    monthsShortStrictRegex: /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
    monthsParse: monthsParse,
    longMonthsParse: monthsParse,
    shortMonthsParse: monthsParse,
    weekdays : 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
    weekdaysShort : 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
    weekdaysMin : 'do_lu_ma_mi_ju_vi_sá'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'h:mm A',
        LTS : 'h:mm:ss A',
        L : 'DD/MM/YYYY',
        LL : 'D [de] MMMM [de] YYYY',
        LLL : 'D [de] MMMM [de] YYYY h:mm A',
        LLLL : 'dddd, D [de] MMMM [de] YYYY h:mm A'
    },
    calendar : {
        sameDay : function () {
            return '[hoy a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        nextDay : function () {
            return '[mañana a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        nextWeek : function () {
            return 'dddd [a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        lastDay : function () {
            return '[ayer a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        lastWeek : function () {
            return '[el] dddd [pasado a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        sameElse : 'L'
    },
    relativeTime : {
        future : 'en %s',
        past : 'hace %s',
        s : 'unos segundos',
        m : 'un minuto',
        mm : '%d minutos',
        h : 'una hora',
        hh : '%d horas',
        d : 'un día',
        dd : '%d días',
        M : 'un mes',
        MM : '%d meses',
        y : 'un año',
        yy : '%d años'
    },
    dayOfMonthOrdinalParse : /\d{1,2}º/,
    ordinal : '%dº',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Spanish (United States) [es-us]
//! author : bustta : https://github.com/bustta

var monthsShortDot$1 = 'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split('_');
var monthsShort$2 = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_');

hooks.defineLocale('es-us', {
    months : 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split('_'),
    monthsShort : function (m, format) {
        if (!m) {
            return monthsShortDot$1;
        } else if (/-MMM-/.test(format)) {
            return monthsShort$2[m.month()];
        } else {
            return monthsShortDot$1[m.month()];
        }
    },
    monthsParseExact : true,
    weekdays : 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
    weekdaysShort : 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
    weekdaysMin : 'do_lu_ma_mi_ju_vi_sá'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'H:mm',
        LTS : 'H:mm:ss',
        L : 'MM/DD/YYYY',
        LL : 'MMMM [de] D [de] YYYY',
        LLL : 'MMMM [de] D [de] YYYY H:mm',
        LLLL : 'dddd, MMMM [de] D [de] YYYY H:mm'
    },
    calendar : {
        sameDay : function () {
            return '[hoy a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        nextDay : function () {
            return '[mañana a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        nextWeek : function () {
            return 'dddd [a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        lastDay : function () {
            return '[ayer a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        lastWeek : function () {
            return '[el] dddd [pasado a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        sameElse : 'L'
    },
    relativeTime : {
        future : 'en %s',
        past : 'hace %s',
        s : 'unos segundos',
        m : 'un minuto',
        mm : '%d minutos',
        h : 'una hora',
        hh : '%d horas',
        d : 'un día',
        dd : '%d días',
        M : 'un mes',
        MM : '%d meses',
        y : 'un año',
        yy : '%d años'
    },
    dayOfMonthOrdinalParse : /\d{1,2}º/,
    ordinal : '%dº',
    week : {
        dow : 0, // Sunday is the first day of the week.
        doy : 6  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Spanish [es]
//! author : Julio Napurí : https://github.com/julionc

var monthsShortDot$2 = 'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split('_');
var monthsShort$3 = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_');

var monthsParse$1 = [/^ene/i, /^feb/i, /^mar/i, /^abr/i, /^may/i, /^jun/i, /^jul/i, /^ago/i, /^sep/i, /^oct/i, /^nov/i, /^dic/i];
var monthsRegex$2 = /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre|ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i;

hooks.defineLocale('es', {
    months : 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split('_'),
    monthsShort : function (m, format) {
        if (!m) {
            return monthsShortDot$2;
        } else if (/-MMM-/.test(format)) {
            return monthsShort$3[m.month()];
        } else {
            return monthsShortDot$2[m.month()];
        }
    },
    monthsRegex : monthsRegex$2,
    monthsShortRegex : monthsRegex$2,
    monthsStrictRegex : /^(enero|febrero|marzo|abril|mayo|junio|julio|agosto|septiembre|octubre|noviembre|diciembre)/i,
    monthsShortStrictRegex : /^(ene\.?|feb\.?|mar\.?|abr\.?|may\.?|jun\.?|jul\.?|ago\.?|sep\.?|oct\.?|nov\.?|dic\.?)/i,
    monthsParse : monthsParse$1,
    longMonthsParse : monthsParse$1,
    shortMonthsParse : monthsParse$1,
    weekdays : 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
    weekdaysShort : 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
    weekdaysMin : 'do_lu_ma_mi_ju_vi_sá'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'H:mm',
        LTS : 'H:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D [de] MMMM [de] YYYY',
        LLL : 'D [de] MMMM [de] YYYY H:mm',
        LLLL : 'dddd, D [de] MMMM [de] YYYY H:mm'
    },
    calendar : {
        sameDay : function () {
            return '[hoy a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        nextDay : function () {
            return '[mañana a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        nextWeek : function () {
            return 'dddd [a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        lastDay : function () {
            return '[ayer a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        lastWeek : function () {
            return '[el] dddd [pasado a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        sameElse : 'L'
    },
    relativeTime : {
        future : 'en %s',
        past : 'hace %s',
        s : 'unos segundos',
        m : 'un minuto',
        mm : '%d minutos',
        h : 'una hora',
        hh : '%d horas',
        d : 'un día',
        dd : '%d días',
        M : 'un mes',
        MM : '%d meses',
        y : 'un año',
        yy : '%d años'
    },
    dayOfMonthOrdinalParse : /\d{1,2}º/,
    ordinal : '%dº',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Estonian [et]
//! author : Henry Kehlmann : https://github.com/madhenry
//! improvements : Illimar Tambek : https://github.com/ragulka

function processRelativeTime$3(number, withoutSuffix, key, isFuture) {
    var format = {
        's' : ['mõne sekundi', 'mõni sekund', 'paar sekundit'],
        'm' : ['ühe minuti', 'üks minut'],
        'mm': [number + ' minuti', number + ' minutit'],
        'h' : ['ühe tunni', 'tund aega', 'üks tund'],
        'hh': [number + ' tunni', number + ' tundi'],
        'd' : ['ühe päeva', 'üks päev'],
        'M' : ['kuu aja', 'kuu aega', 'üks kuu'],
        'MM': [number + ' kuu', number + ' kuud'],
        'y' : ['ühe aasta', 'aasta', 'üks aasta'],
        'yy': [number + ' aasta', number + ' aastat']
    };
    if (withoutSuffix) {
        return format[key][2] ? format[key][2] : format[key][1];
    }
    return isFuture ? format[key][0] : format[key][1];
}

hooks.defineLocale('et', {
    months        : 'jaanuar_veebruar_märts_aprill_mai_juuni_juuli_august_september_oktoober_november_detsember'.split('_'),
    monthsShort   : 'jaan_veebr_märts_apr_mai_juuni_juuli_aug_sept_okt_nov_dets'.split('_'),
    weekdays      : 'pühapäev_esmaspäev_teisipäev_kolmapäev_neljapäev_reede_laupäev'.split('_'),
    weekdaysShort : 'P_E_T_K_N_R_L'.split('_'),
    weekdaysMin   : 'P_E_T_K_N_R_L'.split('_'),
    longDateFormat : {
        LT   : 'H:mm',
        LTS : 'H:mm:ss',
        L    : 'DD.MM.YYYY',
        LL   : 'D. MMMM YYYY',
        LLL  : 'D. MMMM YYYY H:mm',
        LLLL : 'dddd, D. MMMM YYYY H:mm'
    },
    calendar : {
        sameDay  : '[Täna,] LT',
        nextDay  : '[Homme,] LT',
        nextWeek : '[Järgmine] dddd LT',
        lastDay  : '[Eile,] LT',
        lastWeek : '[Eelmine] dddd LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s pärast',
        past   : '%s tagasi',
        s      : processRelativeTime$3,
        m      : processRelativeTime$3,
        mm     : processRelativeTime$3,
        h      : processRelativeTime$3,
        hh     : processRelativeTime$3,
        d      : processRelativeTime$3,
        dd     : '%d päeva',
        M      : processRelativeTime$3,
        MM     : processRelativeTime$3,
        y      : processRelativeTime$3,
        yy     : processRelativeTime$3
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Basque [eu]
//! author : Eneko Illarramendi : https://github.com/eillarra

hooks.defineLocale('eu', {
    months : 'urtarrila_otsaila_martxoa_apirila_maiatza_ekaina_uztaila_abuztua_iraila_urria_azaroa_abendua'.split('_'),
    monthsShort : 'urt._ots._mar._api._mai._eka._uzt._abu._ira._urr._aza._abe.'.split('_'),
    monthsParseExact : true,
    weekdays : 'igandea_astelehena_asteartea_asteazkena_osteguna_ostirala_larunbata'.split('_'),
    weekdaysShort : 'ig._al._ar._az._og._ol._lr.'.split('_'),
    weekdaysMin : 'ig_al_ar_az_og_ol_lr'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'YYYY-MM-DD',
        LL : 'YYYY[ko] MMMM[ren] D[a]',
        LLL : 'YYYY[ko] MMMM[ren] D[a] HH:mm',
        LLLL : 'dddd, YYYY[ko] MMMM[ren] D[a] HH:mm',
        l : 'YYYY-M-D',
        ll : 'YYYY[ko] MMM D[a]',
        lll : 'YYYY[ko] MMM D[a] HH:mm',
        llll : 'ddd, YYYY[ko] MMM D[a] HH:mm'
    },
    calendar : {
        sameDay : '[gaur] LT[etan]',
        nextDay : '[bihar] LT[etan]',
        nextWeek : 'dddd LT[etan]',
        lastDay : '[atzo] LT[etan]',
        lastWeek : '[aurreko] dddd LT[etan]',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s barru',
        past : 'duela %s',
        s : 'segundo batzuk',
        m : 'minutu bat',
        mm : '%d minutu',
        h : 'ordu bat',
        hh : '%d ordu',
        d : 'egun bat',
        dd : '%d egun',
        M : 'hilabete bat',
        MM : '%d hilabete',
        y : 'urte bat',
        yy : '%d urte'
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Persian [fa]
//! author : Ebrahim Byagowi : https://github.com/ebraminio

var symbolMap$5 = {
    '1': '۱',
    '2': '۲',
    '3': '۳',
    '4': '۴',
    '5': '۵',
    '6': '۶',
    '7': '۷',
    '8': '۸',
    '9': '۹',
    '0': '۰'
};
var numberMap$4 = {
    '۱': '1',
    '۲': '2',
    '۳': '3',
    '۴': '4',
    '۵': '5',
    '۶': '6',
    '۷': '7',
    '۸': '8',
    '۹': '9',
    '۰': '0'
};

hooks.defineLocale('fa', {
    months : 'ژانویه_فوریه_مارس_آوریل_مه_ژوئن_ژوئیه_اوت_سپتامبر_اکتبر_نوامبر_دسامبر'.split('_'),
    monthsShort : 'ژانویه_فوریه_مارس_آوریل_مه_ژوئن_ژوئیه_اوت_سپتامبر_اکتبر_نوامبر_دسامبر'.split('_'),
    weekdays : 'یک\u200cشنبه_دوشنبه_سه\u200cشنبه_چهارشنبه_پنج\u200cشنبه_جمعه_شنبه'.split('_'),
    weekdaysShort : 'یک\u200cشنبه_دوشنبه_سه\u200cشنبه_چهارشنبه_پنج\u200cشنبه_جمعه_شنبه'.split('_'),
    weekdaysMin : 'ی_د_س_چ_پ_ج_ش'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    meridiemParse: /قبل از ظهر|بعد از ظهر/,
    isPM: function (input) {
        return /بعد از ظهر/.test(input);
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 12) {
            return 'قبل از ظهر';
        } else {
            return 'بعد از ظهر';
        }
    },
    calendar : {
        sameDay : '[امروز ساعت] LT',
        nextDay : '[فردا ساعت] LT',
        nextWeek : 'dddd [ساعت] LT',
        lastDay : '[دیروز ساعت] LT',
        lastWeek : 'dddd [پیش] [ساعت] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'در %s',
        past : '%s پیش',
        s : 'چند ثانیه',
        m : 'یک دقیقه',
        mm : '%d دقیقه',
        h : 'یک ساعت',
        hh : '%d ساعت',
        d : 'یک روز',
        dd : '%d روز',
        M : 'یک ماه',
        MM : '%d ماه',
        y : 'یک سال',
        yy : '%d سال'
    },
    preparse: function (string) {
        return string.replace(/[۰-۹]/g, function (match) {
            return numberMap$4[match];
        }).replace(/،/g, ',');
    },
    postformat: function (string) {
        return string.replace(/\d/g, function (match) {
            return symbolMap$5[match];
        }).replace(/,/g, '،');
    },
    dayOfMonthOrdinalParse: /\d{1,2}م/,
    ordinal : '%dم',
    week : {
        dow : 6, // Saturday is the first day of the week.
        doy : 12 // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Finnish [fi]
//! author : Tarmo Aidantausta : https://github.com/bleadof

var numbersPast = 'nolla yksi kaksi kolme neljä viisi kuusi seitsemän kahdeksan yhdeksän'.split(' ');
var numbersFuture = [
        'nolla', 'yhden', 'kahden', 'kolmen', 'neljän', 'viiden', 'kuuden',
        numbersPast[7], numbersPast[8], numbersPast[9]
    ];
function translate$2(number, withoutSuffix, key, isFuture) {
    var result = '';
    switch (key) {
        case 's':
            return isFuture ? 'muutaman sekunnin' : 'muutama sekunti';
        case 'm':
            return isFuture ? 'minuutin' : 'minuutti';
        case 'mm':
            result = isFuture ? 'minuutin' : 'minuuttia';
            break;
        case 'h':
            return isFuture ? 'tunnin' : 'tunti';
        case 'hh':
            result = isFuture ? 'tunnin' : 'tuntia';
            break;
        case 'd':
            return isFuture ? 'päivän' : 'päivä';
        case 'dd':
            result = isFuture ? 'päivän' : 'päivää';
            break;
        case 'M':
            return isFuture ? 'kuukauden' : 'kuukausi';
        case 'MM':
            result = isFuture ? 'kuukauden' : 'kuukautta';
            break;
        case 'y':
            return isFuture ? 'vuoden' : 'vuosi';
        case 'yy':
            result = isFuture ? 'vuoden' : 'vuotta';
            break;
    }
    result = verbalNumber(number, isFuture) + ' ' + result;
    return result;
}
function verbalNumber(number, isFuture) {
    return number < 10 ? (isFuture ? numbersFuture[number] : numbersPast[number]) : number;
}

hooks.defineLocale('fi', {
    months : 'tammikuu_helmikuu_maaliskuu_huhtikuu_toukokuu_kesäkuu_heinäkuu_elokuu_syyskuu_lokakuu_marraskuu_joulukuu'.split('_'),
    monthsShort : 'tammi_helmi_maalis_huhti_touko_kesä_heinä_elo_syys_loka_marras_joulu'.split('_'),
    weekdays : 'sunnuntai_maanantai_tiistai_keskiviikko_torstai_perjantai_lauantai'.split('_'),
    weekdaysShort : 'su_ma_ti_ke_to_pe_la'.split('_'),
    weekdaysMin : 'su_ma_ti_ke_to_pe_la'.split('_'),
    longDateFormat : {
        LT : 'HH.mm',
        LTS : 'HH.mm.ss',
        L : 'DD.MM.YYYY',
        LL : 'Do MMMM[ta] YYYY',
        LLL : 'Do MMMM[ta] YYYY, [klo] HH.mm',
        LLLL : 'dddd, Do MMMM[ta] YYYY, [klo] HH.mm',
        l : 'D.M.YYYY',
        ll : 'Do MMM YYYY',
        lll : 'Do MMM YYYY, [klo] HH.mm',
        llll : 'ddd, Do MMM YYYY, [klo] HH.mm'
    },
    calendar : {
        sameDay : '[tänään] [klo] LT',
        nextDay : '[huomenna] [klo] LT',
        nextWeek : 'dddd [klo] LT',
        lastDay : '[eilen] [klo] LT',
        lastWeek : '[viime] dddd[na] [klo] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s päästä',
        past : '%s sitten',
        s : translate$2,
        m : translate$2,
        mm : translate$2,
        h : translate$2,
        hh : translate$2,
        d : translate$2,
        dd : translate$2,
        M : translate$2,
        MM : translate$2,
        y : translate$2,
        yy : translate$2
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Faroese [fo]
//! author : Ragnar Johannesen : https://github.com/ragnar123

hooks.defineLocale('fo', {
    months : 'januar_februar_mars_apríl_mai_juni_juli_august_september_oktober_november_desember'.split('_'),
    monthsShort : 'jan_feb_mar_apr_mai_jun_jul_aug_sep_okt_nov_des'.split('_'),
    weekdays : 'sunnudagur_mánadagur_týsdagur_mikudagur_hósdagur_fríggjadagur_leygardagur'.split('_'),
    weekdaysShort : 'sun_mán_týs_mik_hós_frí_ley'.split('_'),
    weekdaysMin : 'su_má_tý_mi_hó_fr_le'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D. MMMM, YYYY HH:mm'
    },
    calendar : {
        sameDay : '[Í dag kl.] LT',
        nextDay : '[Í morgin kl.] LT',
        nextWeek : 'dddd [kl.] LT',
        lastDay : '[Í gjár kl.] LT',
        lastWeek : '[síðstu] dddd [kl] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'um %s',
        past : '%s síðani',
        s : 'fá sekund',
        m : 'ein minutt',
        mm : '%d minuttir',
        h : 'ein tími',
        hh : '%d tímar',
        d : 'ein dagur',
        dd : '%d dagar',
        M : 'ein mánaði',
        MM : '%d mánaðir',
        y : 'eitt ár',
        yy : '%d ár'
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : French (Canada) [fr-ca]
//! author : Jonathan Abourbih : https://github.com/jonbca

hooks.defineLocale('fr-ca', {
    months : 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split('_'),
    monthsShort : 'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split('_'),
    monthsParseExact : true,
    weekdays : 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
    weekdaysShort : 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
    weekdaysMin : 'Di_Lu_Ma_Me_Je_Ve_Sa'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'YYYY-MM-DD',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[Aujourd’hui à] LT',
        nextDay : '[Demain à] LT',
        nextWeek : 'dddd [à] LT',
        lastDay : '[Hier à] LT',
        lastWeek : 'dddd [dernier à] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'dans %s',
        past : 'il y a %s',
        s : 'quelques secondes',
        m : 'une minute',
        mm : '%d minutes',
        h : 'une heure',
        hh : '%d heures',
        d : 'un jour',
        dd : '%d jours',
        M : 'un mois',
        MM : '%d mois',
        y : 'un an',
        yy : '%d ans'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(er|e)/,
    ordinal : function (number, period) {
        switch (period) {
            // Words with masculine grammatical gender: mois, trimestre, jour
            default:
            case 'M':
            case 'Q':
            case 'D':
            case 'DDD':
            case 'd':
                return number + (number === 1 ? 'er' : 'e');

            // Words with feminine grammatical gender: semaine
            case 'w':
            case 'W':
                return number + (number === 1 ? 're' : 'e');
        }
    }
});

//! moment.js locale configuration
//! locale : French (Switzerland) [fr-ch]
//! author : Gaspard Bucher : https://github.com/gaspard

hooks.defineLocale('fr-ch', {
    months : 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split('_'),
    monthsShort : 'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split('_'),
    monthsParseExact : true,
    weekdays : 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
    weekdaysShort : 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
    weekdaysMin : 'Di_Lu_Ma_Me_Je_Ve_Sa'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[Aujourd’hui à] LT',
        nextDay : '[Demain à] LT',
        nextWeek : 'dddd [à] LT',
        lastDay : '[Hier à] LT',
        lastWeek : 'dddd [dernier à] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'dans %s',
        past : 'il y a %s',
        s : 'quelques secondes',
        m : 'une minute',
        mm : '%d minutes',
        h : 'une heure',
        hh : '%d heures',
        d : 'un jour',
        dd : '%d jours',
        M : 'un mois',
        MM : '%d mois',
        y : 'un an',
        yy : '%d ans'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(er|e)/,
    ordinal : function (number, period) {
        switch (period) {
            // Words with masculine grammatical gender: mois, trimestre, jour
            default:
            case 'M':
            case 'Q':
            case 'D':
            case 'DDD':
            case 'd':
                return number + (number === 1 ? 'er' : 'e');

            // Words with feminine grammatical gender: semaine
            case 'w':
            case 'W':
                return number + (number === 1 ? 're' : 'e');
        }
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : French [fr]
//! author : John Fischer : https://github.com/jfroffice

hooks.defineLocale('fr', {
    months : 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split('_'),
    monthsShort : 'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split('_'),
    monthsParseExact : true,
    weekdays : 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
    weekdaysShort : 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
    weekdaysMin : 'Di_Lu_Ma_Me_Je_Ve_Sa'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[Aujourd’hui à] LT',
        nextDay : '[Demain à] LT',
        nextWeek : 'dddd [à] LT',
        lastDay : '[Hier à] LT',
        lastWeek : 'dddd [dernier à] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'dans %s',
        past : 'il y a %s',
        s : 'quelques secondes',
        m : 'une minute',
        mm : '%d minutes',
        h : 'une heure',
        hh : '%d heures',
        d : 'un jour',
        dd : '%d jours',
        M : 'un mois',
        MM : '%d mois',
        y : 'un an',
        yy : '%d ans'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(er|)/,
    ordinal : function (number, period) {
        switch (period) {
            // TODO: Return 'e' when day of month > 1. Move this case inside
            // block for masculine words below.
            // See https://github.com/moment/moment/issues/3375
            case 'D':
                return number + (number === 1 ? 'er' : '');

            // Words with masculine grammatical gender: mois, trimestre, jour
            default:
            case 'M':
            case 'Q':
            case 'DDD':
            case 'd':
                return number + (number === 1 ? 'er' : 'e');

            // Words with feminine grammatical gender: semaine
            case 'w':
            case 'W':
                return number + (number === 1 ? 're' : 'e');
        }
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Frisian [fy]
//! author : Robin van der Vliet : https://github.com/robin0van0der0v

var monthsShortWithDots = 'jan._feb._mrt._apr._mai_jun._jul._aug._sep._okt._nov._des.'.split('_');
var monthsShortWithoutDots = 'jan_feb_mrt_apr_mai_jun_jul_aug_sep_okt_nov_des'.split('_');

hooks.defineLocale('fy', {
    months : 'jannewaris_febrewaris_maart_april_maaie_juny_july_augustus_septimber_oktober_novimber_desimber'.split('_'),
    monthsShort : function (m, format) {
        if (!m) {
            return monthsShortWithDots;
        } else if (/-MMM-/.test(format)) {
            return monthsShortWithoutDots[m.month()];
        } else {
            return monthsShortWithDots[m.month()];
        }
    },
    monthsParseExact : true,
    weekdays : 'snein_moandei_tiisdei_woansdei_tongersdei_freed_sneon'.split('_'),
    weekdaysShort : 'si._mo._ti._wo._to._fr._so.'.split('_'),
    weekdaysMin : 'Si_Mo_Ti_Wo_To_Fr_So'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD-MM-YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[hjoed om] LT',
        nextDay: '[moarn om] LT',
        nextWeek: 'dddd [om] LT',
        lastDay: '[juster om] LT',
        lastWeek: '[ôfrûne] dddd [om] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'oer %s',
        past : '%s lyn',
        s : 'in pear sekonden',
        m : 'ien minút',
        mm : '%d minuten',
        h : 'ien oere',
        hh : '%d oeren',
        d : 'ien dei',
        dd : '%d dagen',
        M : 'ien moanne',
        MM : '%d moannen',
        y : 'ien jier',
        yy : '%d jierren'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
    ordinal : function (number) {
        return number + ((number === 1 || number === 8 || number >= 20) ? 'ste' : 'de');
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Scottish Gaelic [gd]
//! author : Jon Ashdown : https://github.com/jonashdown

var months$5 = [
    'Am Faoilleach', 'An Gearran', 'Am Màrt', 'An Giblean', 'An Cèitean', 'An t-Ògmhios', 'An t-Iuchar', 'An Lùnastal', 'An t-Sultain', 'An Dàmhair', 'An t-Samhain', 'An Dùbhlachd'
];

var monthsShort$4 = ['Faoi', 'Gear', 'Màrt', 'Gibl', 'Cèit', 'Ògmh', 'Iuch', 'Lùn', 'Sult', 'Dàmh', 'Samh', 'Dùbh'];

var weekdays$1 = ['Didòmhnaich', 'Diluain', 'Dimàirt', 'Diciadain', 'Diardaoin', 'Dihaoine', 'Disathairne'];

var weekdaysShort = ['Did', 'Dil', 'Dim', 'Dic', 'Dia', 'Dih', 'Dis'];

var weekdaysMin = ['Dò', 'Lu', 'Mà', 'Ci', 'Ar', 'Ha', 'Sa'];

hooks.defineLocale('gd', {
    months : months$5,
    monthsShort : monthsShort$4,
    monthsParseExact : true,
    weekdays : weekdays$1,
    weekdaysShort : weekdaysShort,
    weekdaysMin : weekdaysMin,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[An-diugh aig] LT',
        nextDay : '[A-màireach aig] LT',
        nextWeek : 'dddd [aig] LT',
        lastDay : '[An-dè aig] LT',
        lastWeek : 'dddd [seo chaidh] [aig] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'ann an %s',
        past : 'bho chionn %s',
        s : 'beagan diogan',
        m : 'mionaid',
        mm : '%d mionaidean',
        h : 'uair',
        hh : '%d uairean',
        d : 'latha',
        dd : '%d latha',
        M : 'mìos',
        MM : '%d mìosan',
        y : 'bliadhna',
        yy : '%d bliadhna'
    },
    dayOfMonthOrdinalParse : /\d{1,2}(d|na|mh)/,
    ordinal : function (number) {
        var output = number === 1 ? 'd' : number % 10 === 2 ? 'na' : 'mh';
        return number + output;
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Galician [gl]
//! author : Juan G. Hurtado : https://github.com/juanghurtado

hooks.defineLocale('gl', {
    months : 'xaneiro_febreiro_marzo_abril_maio_xuño_xullo_agosto_setembro_outubro_novembro_decembro'.split('_'),
    monthsShort : 'xan._feb._mar._abr._mai._xuñ._xul._ago._set._out._nov._dec.'.split('_'),
    monthsParseExact: true,
    weekdays : 'domingo_luns_martes_mércores_xoves_venres_sábado'.split('_'),
    weekdaysShort : 'dom._lun._mar._mér._xov._ven._sáb.'.split('_'),
    weekdaysMin : 'do_lu_ma_mé_xo_ve_sá'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'H:mm',
        LTS : 'H:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D [de] MMMM [de] YYYY',
        LLL : 'D [de] MMMM [de] YYYY H:mm',
        LLLL : 'dddd, D [de] MMMM [de] YYYY H:mm'
    },
    calendar : {
        sameDay : function () {
            return '[hoxe ' + ((this.hours() !== 1) ? 'ás' : 'á') + '] LT';
        },
        nextDay : function () {
            return '[mañá ' + ((this.hours() !== 1) ? 'ás' : 'á') + '] LT';
        },
        nextWeek : function () {
            return 'dddd [' + ((this.hours() !== 1) ? 'ás' : 'a') + '] LT';
        },
        lastDay : function () {
            return '[onte ' + ((this.hours() !== 1) ? 'á' : 'a') + '] LT';
        },
        lastWeek : function () {
            return '[o] dddd [pasado ' + ((this.hours() !== 1) ? 'ás' : 'a') + '] LT';
        },
        sameElse : 'L'
    },
    relativeTime : {
        future : function (str) {
            if (str.indexOf('un') === 0) {
                return 'n' + str;
            }
            return 'en ' + str;
        },
        past : 'hai %s',
        s : 'uns segundos',
        m : 'un minuto',
        mm : '%d minutos',
        h : 'unha hora',
        hh : '%d horas',
        d : 'un día',
        dd : '%d días',
        M : 'un mes',
        MM : '%d meses',
        y : 'un ano',
        yy : '%d anos'
    },
    dayOfMonthOrdinalParse : /\d{1,2}º/,
    ordinal : '%dº',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Konkani Latin script [gom-latn]
//! author : The Discoverer : https://github.com/WikiDiscoverer

function processRelativeTime$4(number, withoutSuffix, key, isFuture) {
    var format = {
        's': ['thodde secondanim', 'thodde second'],
        'm': ['eka mintan', 'ek minute'],
        'mm': [number + ' mintanim', number + ' mintam'],
        'h': ['eka horan', 'ek hor'],
        'hh': [number + ' horanim', number + ' hor'],
        'd': ['eka disan', 'ek dis'],
        'dd': [number + ' disanim', number + ' dis'],
        'M': ['eka mhoinean', 'ek mhoino'],
        'MM': [number + ' mhoineanim', number + ' mhoine'],
        'y': ['eka vorsan', 'ek voros'],
        'yy': [number + ' vorsanim', number + ' vorsam']
    };
    return withoutSuffix ? format[key][0] : format[key][1];
}

hooks.defineLocale('gom-latn', {
    months : 'Janer_Febrer_Mars_Abril_Mai_Jun_Julai_Agost_Setembr_Otubr_Novembr_Dezembr'.split('_'),
    monthsShort : 'Jan._Feb._Mars_Abr._Mai_Jun_Jul._Ago._Set._Otu._Nov._Dez.'.split('_'),
    monthsParseExact : true,
    weekdays : 'Aitar_Somar_Mongllar_Budvar_Brestar_Sukrar_Son\'var'.split('_'),
    weekdaysShort : 'Ait._Som._Mon._Bud._Bre._Suk._Son.'.split('_'),
    weekdaysMin : 'Ai_Sm_Mo_Bu_Br_Su_Sn'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'A h:mm [vazta]',
        LTS : 'A h:mm:ss [vazta]',
        L : 'DD-MM-YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY A h:mm [vazta]',
        LLLL : 'dddd, MMMM[achea] Do, YYYY, A h:mm [vazta]',
        llll: 'ddd, D MMM YYYY, A h:mm [vazta]'
    },
    calendar : {
        sameDay: '[Aiz] LT',
        nextDay: '[Faleam] LT',
        nextWeek: '[Ieta to] dddd[,] LT',
        lastDay: '[Kal] LT',
        lastWeek: '[Fatlo] dddd[,] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : '%s',
        past : '%s adim',
        s : processRelativeTime$4,
        m : processRelativeTime$4,
        mm : processRelativeTime$4,
        h : processRelativeTime$4,
        hh : processRelativeTime$4,
        d : processRelativeTime$4,
        dd : processRelativeTime$4,
        M : processRelativeTime$4,
        MM : processRelativeTime$4,
        y : processRelativeTime$4,
        yy : processRelativeTime$4
    },
    dayOfMonthOrdinalParse : /\d{1,2}(er)/,
    ordinal : function (number, period) {
        switch (period) {
            // the ordinal 'er' only applies to day of the month
            case 'D':
                return number + 'er';
            default:
            case 'M':
            case 'Q':
            case 'DDD':
            case 'd':
            case 'w':
            case 'W':
                return number;
        }
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    },
    meridiemParse: /rati|sokalli|donparam|sanje/,
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === 'rati') {
            return hour < 4 ? hour : hour + 12;
        } else if (meridiem === 'sokalli') {
            return hour;
        } else if (meridiem === 'donparam') {
            return hour > 12 ? hour : hour + 12;
        } else if (meridiem === 'sanje') {
            return hour + 12;
        }
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 4) {
            return 'rati';
        } else if (hour < 12) {
            return 'sokalli';
        } else if (hour < 16) {
            return 'donparam';
        } else if (hour < 20) {
            return 'sanje';
        } else {
            return 'rati';
        }
    }
});

//! moment.js locale configuration
//! locale : Gujarati [gu]
//! author : Kaushik Thanki : https://github.com/Kaushik1987

var symbolMap$6 = {
        '1': '૧',
        '2': '૨',
        '3': '૩',
        '4': '૪',
        '5': '૫',
        '6': '૬',
        '7': '૭',
        '8': '૮',
        '9': '૯',
        '0': '૦'
    };
var numberMap$5 = {
        '૧': '1',
        '૨': '2',
        '૩': '3',
        '૪': '4',
        '૫': '5',
        '૬': '6',
        '૭': '7',
        '૮': '8',
        '૯': '9',
        '૦': '0'
    };

hooks.defineLocale('gu', {
    months: 'જાન્યુઆરી_ફેબ્રુઆરી_માર્ચ_એપ્રિલ_મે_જૂન_જુલાઈ_ઑગસ્ટ_સપ્ટેમ્બર_ઑક્ટ્બર_નવેમ્બર_ડિસેમ્બર'.split('_'),
    monthsShort: 'જાન્યુ._ફેબ્રુ._માર્ચ_એપ્રિ._મે_જૂન_જુલા._ઑગ._સપ્ટે._ઑક્ટ્._નવે._ડિસે.'.split('_'),
    monthsParseExact: true,
    weekdays: 'રવિવાર_સોમવાર_મંગળવાર_બુધ્વાર_ગુરુવાર_શુક્રવાર_શનિવાર'.split('_'),
    weekdaysShort: 'રવિ_સોમ_મંગળ_બુધ્_ગુરુ_શુક્ર_શનિ'.split('_'),
    weekdaysMin: 'ર_સો_મં_બુ_ગુ_શુ_શ'.split('_'),
    longDateFormat: {
        LT: 'A h:mm વાગ્યે',
        LTS: 'A h:mm:ss વાગ્યે',
        L: 'DD/MM/YYYY',
        LL: 'D MMMM YYYY',
        LLL: 'D MMMM YYYY, A h:mm વાગ્યે',
        LLLL: 'dddd, D MMMM YYYY, A h:mm વાગ્યે'
    },
    calendar: {
        sameDay: '[આજ] LT',
        nextDay: '[કાલે] LT',
        nextWeek: 'dddd, LT',
        lastDay: '[ગઇકાલે] LT',
        lastWeek: '[પાછલા] dddd, LT',
        sameElse: 'L'
    },
    relativeTime: {
        future: '%s મા',
        past: '%s પેહલા',
        s: 'અમુક પળો',
        m: 'એક મિનિટ',
        mm: '%d મિનિટ',
        h: 'એક કલાક',
        hh: '%d કલાક',
        d: 'એક દિવસ',
        dd: '%d દિવસ',
        M: 'એક મહિનો',
        MM: '%d મહિનો',
        y: 'એક વર્ષ',
        yy: '%d વર્ષ'
    },
    preparse: function (string) {
        return string.replace(/[૧૨૩૪૫૬૭૮૯૦]/g, function (match) {
            return numberMap$5[match];
        });
    },
    postformat: function (string) {
        return string.replace(/\d/g, function (match) {
            return symbolMap$6[match];
        });
    },
    // Gujarati notation for meridiems are quite fuzzy in practice. While there exists
    // a rigid notion of a 'Pahar' it is not used as rigidly in modern Gujarati.
    meridiemParse: /રાત|બપોર|સવાર|સાંજ/,
    meridiemHour: function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === 'રાત') {
            return hour < 4 ? hour : hour + 12;
        } else if (meridiem === 'સવાર') {
            return hour;
        } else if (meridiem === 'બપોર') {
            return hour >= 10 ? hour : hour + 12;
        } else if (meridiem === 'સાંજ') {
            return hour + 12;
        }
    },
    meridiem: function (hour, minute, isLower) {
        if (hour < 4) {
            return 'રાત';
        } else if (hour < 10) {
            return 'સવાર';
        } else if (hour < 17) {
            return 'બપોર';
        } else if (hour < 20) {
            return 'સાંજ';
        } else {
            return 'રાત';
        }
    },
    week: {
        dow: 0, // Sunday is the first day of the week.
        doy: 6 // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Hebrew [he]
//! author : Tomer Cohen : https://github.com/tomer
//! author : Moshe Simantov : https://github.com/DevelopmentIL
//! author : Tal Ater : https://github.com/TalAter

hooks.defineLocale('he', {
    months : 'ינואר_פברואר_מרץ_אפריל_מאי_יוני_יולי_אוגוסט_ספטמבר_אוקטובר_נובמבר_דצמבר'.split('_'),
    monthsShort : 'ינו׳_פבר׳_מרץ_אפר׳_מאי_יוני_יולי_אוג׳_ספט׳_אוק׳_נוב׳_דצמ׳'.split('_'),
    weekdays : 'ראשון_שני_שלישי_רביעי_חמישי_שישי_שבת'.split('_'),
    weekdaysShort : 'א׳_ב׳_ג׳_ד׳_ה׳_ו׳_ש׳'.split('_'),
    weekdaysMin : 'א_ב_ג_ד_ה_ו_ש'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D [ב]MMMM YYYY',
        LLL : 'D [ב]MMMM YYYY HH:mm',
        LLLL : 'dddd, D [ב]MMMM YYYY HH:mm',
        l : 'D/M/YYYY',
        ll : 'D MMM YYYY',
        lll : 'D MMM YYYY HH:mm',
        llll : 'ddd, D MMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[היום ב־]LT',
        nextDay : '[מחר ב־]LT',
        nextWeek : 'dddd [בשעה] LT',
        lastDay : '[אתמול ב־]LT',
        lastWeek : '[ביום] dddd [האחרון בשעה] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'בעוד %s',
        past : 'לפני %s',
        s : 'מספר שניות',
        m : 'דקה',
        mm : '%d דקות',
        h : 'שעה',
        hh : function (number) {
            if (number === 2) {
                return 'שעתיים';
            }
            return number + ' שעות';
        },
        d : 'יום',
        dd : function (number) {
            if (number === 2) {
                return 'יומיים';
            }
            return number + ' ימים';
        },
        M : 'חודש',
        MM : function (number) {
            if (number === 2) {
                return 'חודשיים';
            }
            return number + ' חודשים';
        },
        y : 'שנה',
        yy : function (number) {
            if (number === 2) {
                return 'שנתיים';
            } else if (number % 10 === 0 && number !== 10) {
                return number + ' שנה';
            }
            return number + ' שנים';
        }
    },
    meridiemParse: /אחה"צ|לפנה"צ|אחרי הצהריים|לפני הצהריים|לפנות בוקר|בבוקר|בערב/i,
    isPM : function (input) {
        return /^(אחה"צ|אחרי הצהריים|בערב)$/.test(input);
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 5) {
            return 'לפנות בוקר';
        } else if (hour < 10) {
            return 'בבוקר';
        } else if (hour < 12) {
            return isLower ? 'לפנה"צ' : 'לפני הצהריים';
        } else if (hour < 18) {
            return isLower ? 'אחה"צ' : 'אחרי הצהריים';
        } else {
            return 'בערב';
        }
    }
});

//! moment.js locale configuration
//! locale : Hindi [hi]
//! author : Mayank Singhal : https://github.com/mayanksinghal

var symbolMap$7 = {
    '1': '१',
    '2': '२',
    '3': '३',
    '4': '४',
    '5': '५',
    '6': '६',
    '7': '७',
    '8': '८',
    '9': '९',
    '0': '०'
};
var numberMap$6 = {
    '१': '1',
    '२': '2',
    '३': '3',
    '४': '4',
    '५': '5',
    '६': '6',
    '७': '7',
    '८': '8',
    '९': '9',
    '०': '0'
};

hooks.defineLocale('hi', {
    months : 'जनवरी_फ़रवरी_मार्च_अप्रैल_मई_जून_जुलाई_अगस्त_सितम्बर_अक्टूबर_नवम्बर_दिसम्बर'.split('_'),
    monthsShort : 'जन._फ़र._मार्च_अप्रै._मई_जून_जुल._अग._सित._अक्टू._नव._दिस.'.split('_'),
    monthsParseExact: true,
    weekdays : 'रविवार_सोमवार_मंगलवार_बुधवार_गुरूवार_शुक्रवार_शनिवार'.split('_'),
    weekdaysShort : 'रवि_सोम_मंगल_बुध_गुरू_शुक्र_शनि'.split('_'),
    weekdaysMin : 'र_सो_मं_बु_गु_शु_श'.split('_'),
    longDateFormat : {
        LT : 'A h:mm बजे',
        LTS : 'A h:mm:ss बजे',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY, A h:mm बजे',
        LLLL : 'dddd, D MMMM YYYY, A h:mm बजे'
    },
    calendar : {
        sameDay : '[आज] LT',
        nextDay : '[कल] LT',
        nextWeek : 'dddd, LT',
        lastDay : '[कल] LT',
        lastWeek : '[पिछले] dddd, LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s में',
        past : '%s पहले',
        s : 'कुछ ही क्षण',
        m : 'एक मिनट',
        mm : '%d मिनट',
        h : 'एक घंटा',
        hh : '%d घंटे',
        d : 'एक दिन',
        dd : '%d दिन',
        M : 'एक महीने',
        MM : '%d महीने',
        y : 'एक वर्ष',
        yy : '%d वर्ष'
    },
    preparse: function (string) {
        return string.replace(/[१२३४५६७८९०]/g, function (match) {
            return numberMap$6[match];
        });
    },
    postformat: function (string) {
        return string.replace(/\d/g, function (match) {
            return symbolMap$7[match];
        });
    },
    // Hindi notation for meridiems are quite fuzzy in practice. While there exists
    // a rigid notion of a 'Pahar' it is not used as rigidly in modern Hindi.
    meridiemParse: /रात|सुबह|दोपहर|शाम/,
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === 'रात') {
            return hour < 4 ? hour : hour + 12;
        } else if (meridiem === 'सुबह') {
            return hour;
        } else if (meridiem === 'दोपहर') {
            return hour >= 10 ? hour : hour + 12;
        } else if (meridiem === 'शाम') {
            return hour + 12;
        }
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 4) {
            return 'रात';
        } else if (hour < 10) {
            return 'सुबह';
        } else if (hour < 17) {
            return 'दोपहर';
        } else if (hour < 20) {
            return 'शाम';
        } else {
            return 'रात';
        }
    },
    week : {
        dow : 0, // Sunday is the first day of the week.
        doy : 6  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Croatian [hr]
//! author : Bojan Marković : https://github.com/bmarkovic

function translate$3(number, withoutSuffix, key) {
    var result = number + ' ';
    switch (key) {
        case 'm':
            return withoutSuffix ? 'jedna minuta' : 'jedne minute';
        case 'mm':
            if (number === 1) {
                result += 'minuta';
            } else if (number === 2 || number === 3 || number === 4) {
                result += 'minute';
            } else {
                result += 'minuta';
            }
            return result;
        case 'h':
            return withoutSuffix ? 'jedan sat' : 'jednog sata';
        case 'hh':
            if (number === 1) {
                result += 'sat';
            } else if (number === 2 || number === 3 || number === 4) {
                result += 'sata';
            } else {
                result += 'sati';
            }
            return result;
        case 'dd':
            if (number === 1) {
                result += 'dan';
            } else {
                result += 'dana';
            }
            return result;
        case 'MM':
            if (number === 1) {
                result += 'mjesec';
            } else if (number === 2 || number === 3 || number === 4) {
                result += 'mjeseca';
            } else {
                result += 'mjeseci';
            }
            return result;
        case 'yy':
            if (number === 1) {
                result += 'godina';
            } else if (number === 2 || number === 3 || number === 4) {
                result += 'godine';
            } else {
                result += 'godina';
            }
            return result;
    }
}

hooks.defineLocale('hr', {
    months : {
        format: 'siječnja_veljače_ožujka_travnja_svibnja_lipnja_srpnja_kolovoza_rujna_listopada_studenoga_prosinca'.split('_'),
        standalone: 'siječanj_veljača_ožujak_travanj_svibanj_lipanj_srpanj_kolovoz_rujan_listopad_studeni_prosinac'.split('_')
    },
    monthsShort : 'sij._velj._ožu._tra._svi._lip._srp._kol._ruj._lis._stu._pro.'.split('_'),
    monthsParseExact: true,
    weekdays : 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split('_'),
    weekdaysShort : 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
    weekdaysMin : 'ne_po_ut_sr_če_pe_su'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'H:mm',
        LTS : 'H:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D. MMMM YYYY',
        LLL : 'D. MMMM YYYY H:mm',
        LLLL : 'dddd, D. MMMM YYYY H:mm'
    },
    calendar : {
        sameDay  : '[danas u] LT',
        nextDay  : '[sutra u] LT',
        nextWeek : function () {
            switch (this.day()) {
                case 0:
                    return '[u] [nedjelju] [u] LT';
                case 3:
                    return '[u] [srijedu] [u] LT';
                case 6:
                    return '[u] [subotu] [u] LT';
                case 1:
                case 2:
                case 4:
                case 5:
                    return '[u] dddd [u] LT';
            }
        },
        lastDay  : '[jučer u] LT',
        lastWeek : function () {
            switch (this.day()) {
                case 0:
                case 3:
                    return '[prošlu] dddd [u] LT';
                case 6:
                    return '[prošle] [subote] [u] LT';
                case 1:
                case 2:
                case 4:
                case 5:
                    return '[prošli] dddd [u] LT';
            }
        },
        sameElse : 'L'
    },
    relativeTime : {
        future : 'za %s',
        past   : 'prije %s',
        s      : 'par sekundi',
        m      : translate$3,
        mm     : translate$3,
        h      : translate$3,
        hh     : translate$3,
        d      : 'dan',
        dd     : translate$3,
        M      : 'mjesec',
        MM     : translate$3,
        y      : 'godinu',
        yy     : translate$3
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Hungarian [hu]
//! author : Adam Brunner : https://github.com/adambrunner

var weekEndings = 'vasárnap hétfőn kedden szerdán csütörtökön pénteken szombaton'.split(' ');
function translate$4(number, withoutSuffix, key, isFuture) {
    var num = number;
    switch (key) {
        case 's':
            return (isFuture || withoutSuffix) ? 'néhány másodperc' : 'néhány másodperce';
        case 'm':
            return 'egy' + (isFuture || withoutSuffix ? ' perc' : ' perce');
        case 'mm':
            return num + (isFuture || withoutSuffix ? ' perc' : ' perce');
        case 'h':
            return 'egy' + (isFuture || withoutSuffix ? ' óra' : ' órája');
        case 'hh':
            return num + (isFuture || withoutSuffix ? ' óra' : ' órája');
        case 'd':
            return 'egy' + (isFuture || withoutSuffix ? ' nap' : ' napja');
        case 'dd':
            return num + (isFuture || withoutSuffix ? ' nap' : ' napja');
        case 'M':
            return 'egy' + (isFuture || withoutSuffix ? ' hónap' : ' hónapja');
        case 'MM':
            return num + (isFuture || withoutSuffix ? ' hónap' : ' hónapja');
        case 'y':
            return 'egy' + (isFuture || withoutSuffix ? ' év' : ' éve');
        case 'yy':
            return num + (isFuture || withoutSuffix ? ' év' : ' éve');
    }
    return '';
}
function week(isFuture) {
    return (isFuture ? '' : '[múlt] ') + '[' + weekEndings[this.day()] + '] LT[-kor]';
}

hooks.defineLocale('hu', {
    months : 'január_február_március_április_május_június_július_augusztus_szeptember_október_november_december'.split('_'),
    monthsShort : 'jan_feb_márc_ápr_máj_jún_júl_aug_szept_okt_nov_dec'.split('_'),
    weekdays : 'vasárnap_hétfő_kedd_szerda_csütörtök_péntek_szombat'.split('_'),
    weekdaysShort : 'vas_hét_kedd_sze_csüt_pén_szo'.split('_'),
    weekdaysMin : 'v_h_k_sze_cs_p_szo'.split('_'),
    longDateFormat : {
        LT : 'H:mm',
        LTS : 'H:mm:ss',
        L : 'YYYY.MM.DD.',
        LL : 'YYYY. MMMM D.',
        LLL : 'YYYY. MMMM D. H:mm',
        LLLL : 'YYYY. MMMM D., dddd H:mm'
    },
    meridiemParse: /de|du/i,
    isPM: function (input) {
        return input.charAt(1).toLowerCase() === 'u';
    },
    meridiem : function (hours, minutes, isLower) {
        if (hours < 12) {
            return isLower === true ? 'de' : 'DE';
        } else {
            return isLower === true ? 'du' : 'DU';
        }
    },
    calendar : {
        sameDay : '[ma] LT[-kor]',
        nextDay : '[holnap] LT[-kor]',
        nextWeek : function () {
            return week.call(this, true);
        },
        lastDay : '[tegnap] LT[-kor]',
        lastWeek : function () {
            return week.call(this, false);
        },
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s múlva',
        past : '%s',
        s : translate$4,
        m : translate$4,
        mm : translate$4,
        h : translate$4,
        hh : translate$4,
        d : translate$4,
        dd : translate$4,
        M : translate$4,
        MM : translate$4,
        y : translate$4,
        yy : translate$4
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Armenian [hy-am]
//! author : Armendarabyan : https://github.com/armendarabyan

hooks.defineLocale('hy-am', {
    months : {
        format: 'հունվարի_փետրվարի_մարտի_ապրիլի_մայիսի_հունիսի_հուլիսի_օգոստոսի_սեպտեմբերի_հոկտեմբերի_նոյեմբերի_դեկտեմբերի'.split('_'),
        standalone: 'հունվար_փետրվար_մարտ_ապրիլ_մայիս_հունիս_հուլիս_օգոստոս_սեպտեմբեր_հոկտեմբեր_նոյեմբեր_դեկտեմբեր'.split('_')
    },
    monthsShort : 'հնվ_փտր_մրտ_ապր_մյս_հնս_հլս_օգս_սպտ_հկտ_նմբ_դկտ'.split('_'),
    weekdays : 'կիրակի_երկուշաբթի_երեքշաբթի_չորեքշաբթի_հինգշաբթի_ուրբաթ_շաբաթ'.split('_'),
    weekdaysShort : 'կրկ_երկ_երք_չրք_հնգ_ուրբ_շբթ'.split('_'),
    weekdaysMin : 'կրկ_երկ_երք_չրք_հնգ_ուրբ_շբթ'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D MMMM YYYY թ.',
        LLL : 'D MMMM YYYY թ., HH:mm',
        LLLL : 'dddd, D MMMM YYYY թ., HH:mm'
    },
    calendar : {
        sameDay: '[այսօր] LT',
        nextDay: '[վաղը] LT',
        lastDay: '[երեկ] LT',
        nextWeek: function () {
            return 'dddd [օրը ժամը] LT';
        },
        lastWeek: function () {
            return '[անցած] dddd [օրը ժամը] LT';
        },
        sameElse: 'L'
    },
    relativeTime : {
        future : '%s հետո',
        past : '%s առաջ',
        s : 'մի քանի վայրկյան',
        m : 'րոպե',
        mm : '%d րոպե',
        h : 'ժամ',
        hh : '%d ժամ',
        d : 'օր',
        dd : '%d օր',
        M : 'ամիս',
        MM : '%d ամիս',
        y : 'տարի',
        yy : '%d տարի'
    },
    meridiemParse: /գիշերվա|առավոտվա|ցերեկվա|երեկոյան/,
    isPM: function (input) {
        return /^(ցերեկվա|երեկոյան)$/.test(input);
    },
    meridiem : function (hour) {
        if (hour < 4) {
            return 'գիշերվա';
        } else if (hour < 12) {
            return 'առավոտվա';
        } else if (hour < 17) {
            return 'ցերեկվա';
        } else {
            return 'երեկոյան';
        }
    },
    dayOfMonthOrdinalParse: /\d{1,2}|\d{1,2}-(ին|րդ)/,
    ordinal: function (number, period) {
        switch (period) {
            case 'DDD':
            case 'w':
            case 'W':
            case 'DDDo':
                if (number === 1) {
                    return number + '-ին';
                }
                return number + '-րդ';
            default:
                return number;
        }
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Indonesian [id]
//! author : Mohammad Satrio Utomo : https://github.com/tyok
//! reference: http://id.wikisource.org/wiki/Pedoman_Umum_Ejaan_Bahasa_Indonesia_yang_Disempurnakan

hooks.defineLocale('id', {
    months : 'Januari_Februari_Maret_April_Mei_Juni_Juli_Agustus_September_Oktober_November_Desember'.split('_'),
    monthsShort : 'Jan_Feb_Mar_Apr_Mei_Jun_Jul_Ags_Sep_Okt_Nov_Des'.split('_'),
    weekdays : 'Minggu_Senin_Selasa_Rabu_Kamis_Jumat_Sabtu'.split('_'),
    weekdaysShort : 'Min_Sen_Sel_Rab_Kam_Jum_Sab'.split('_'),
    weekdaysMin : 'Mg_Sn_Sl_Rb_Km_Jm_Sb'.split('_'),
    longDateFormat : {
        LT : 'HH.mm',
        LTS : 'HH.mm.ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY [pukul] HH.mm',
        LLLL : 'dddd, D MMMM YYYY [pukul] HH.mm'
    },
    meridiemParse: /pagi|siang|sore|malam/,
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === 'pagi') {
            return hour;
        } else if (meridiem === 'siang') {
            return hour >= 11 ? hour : hour + 12;
        } else if (meridiem === 'sore' || meridiem === 'malam') {
            return hour + 12;
        }
    },
    meridiem : function (hours, minutes, isLower) {
        if (hours < 11) {
            return 'pagi';
        } else if (hours < 15) {
            return 'siang';
        } else if (hours < 19) {
            return 'sore';
        } else {
            return 'malam';
        }
    },
    calendar : {
        sameDay : '[Hari ini pukul] LT',
        nextDay : '[Besok pukul] LT',
        nextWeek : 'dddd [pukul] LT',
        lastDay : '[Kemarin pukul] LT',
        lastWeek : 'dddd [lalu pukul] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'dalam %s',
        past : '%s yang lalu',
        s : 'beberapa detik',
        m : 'semenit',
        mm : '%d menit',
        h : 'sejam',
        hh : '%d jam',
        d : 'sehari',
        dd : '%d hari',
        M : 'sebulan',
        MM : '%d bulan',
        y : 'setahun',
        yy : '%d tahun'
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Icelandic [is]
//! author : Hinrik Örn Sigurðsson : https://github.com/hinrik

function plural$2(n) {
    if (n % 100 === 11) {
        return true;
    } else if (n % 10 === 1) {
        return false;
    }
    return true;
}
function translate$5(number, withoutSuffix, key, isFuture) {
    var result = number + ' ';
    switch (key) {
        case 's':
            return withoutSuffix || isFuture ? 'nokkrar sekúndur' : 'nokkrum sekúndum';
        case 'm':
            return withoutSuffix ? 'mínúta' : 'mínútu';
        case 'mm':
            if (plural$2(number)) {
                return result + (withoutSuffix || isFuture ? 'mínútur' : 'mínútum');
            } else if (withoutSuffix) {
                return result + 'mínúta';
            }
            return result + 'mínútu';
        case 'hh':
            if (plural$2(number)) {
                return result + (withoutSuffix || isFuture ? 'klukkustundir' : 'klukkustundum');
            }
            return result + 'klukkustund';
        case 'd':
            if (withoutSuffix) {
                return 'dagur';
            }
            return isFuture ? 'dag' : 'degi';
        case 'dd':
            if (plural$2(number)) {
                if (withoutSuffix) {
                    return result + 'dagar';
                }
                return result + (isFuture ? 'daga' : 'dögum');
            } else if (withoutSuffix) {
                return result + 'dagur';
            }
            return result + (isFuture ? 'dag' : 'degi');
        case 'M':
            if (withoutSuffix) {
                return 'mánuður';
            }
            return isFuture ? 'mánuð' : 'mánuði';
        case 'MM':
            if (plural$2(number)) {
                if (withoutSuffix) {
                    return result + 'mánuðir';
                }
                return result + (isFuture ? 'mánuði' : 'mánuðum');
            } else if (withoutSuffix) {
                return result + 'mánuður';
            }
            return result + (isFuture ? 'mánuð' : 'mánuði');
        case 'y':
            return withoutSuffix || isFuture ? 'ár' : 'ári';
        case 'yy':
            if (plural$2(number)) {
                return result + (withoutSuffix || isFuture ? 'ár' : 'árum');
            }
            return result + (withoutSuffix || isFuture ? 'ár' : 'ári');
    }
}

hooks.defineLocale('is', {
    months : 'janúar_febrúar_mars_apríl_maí_júní_júlí_ágúst_september_október_nóvember_desember'.split('_'),
    monthsShort : 'jan_feb_mar_apr_maí_jún_júl_ágú_sep_okt_nóv_des'.split('_'),
    weekdays : 'sunnudagur_mánudagur_þriðjudagur_miðvikudagur_fimmtudagur_föstudagur_laugardagur'.split('_'),
    weekdaysShort : 'sun_mán_þri_mið_fim_fös_lau'.split('_'),
    weekdaysMin : 'Su_Má_Þr_Mi_Fi_Fö_La'.split('_'),
    longDateFormat : {
        LT : 'H:mm',
        LTS : 'H:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D. MMMM YYYY',
        LLL : 'D. MMMM YYYY [kl.] H:mm',
        LLLL : 'dddd, D. MMMM YYYY [kl.] H:mm'
    },
    calendar : {
        sameDay : '[í dag kl.] LT',
        nextDay : '[á morgun kl.] LT',
        nextWeek : 'dddd [kl.] LT',
        lastDay : '[í gær kl.] LT',
        lastWeek : '[síðasta] dddd [kl.] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'eftir %s',
        past : 'fyrir %s síðan',
        s : translate$5,
        m : translate$5,
        mm : translate$5,
        h : 'klukkustund',
        hh : translate$5,
        d : translate$5,
        dd : translate$5,
        M : translate$5,
        MM : translate$5,
        y : translate$5,
        yy : translate$5
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Italian [it]
//! author : Lorenzo : https://github.com/aliem
//! author: Mattia Larentis: https://github.com/nostalgiaz

hooks.defineLocale('it', {
    months : 'gennaio_febbraio_marzo_aprile_maggio_giugno_luglio_agosto_settembre_ottobre_novembre_dicembre'.split('_'),
    monthsShort : 'gen_feb_mar_apr_mag_giu_lug_ago_set_ott_nov_dic'.split('_'),
    weekdays : 'domenica_lunedì_martedì_mercoledì_giovedì_venerdì_sabato'.split('_'),
    weekdaysShort : 'dom_lun_mar_mer_gio_ven_sab'.split('_'),
    weekdaysMin : 'do_lu_ma_me_gi_ve_sa'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[Oggi alle] LT',
        nextDay: '[Domani alle] LT',
        nextWeek: 'dddd [alle] LT',
        lastDay: '[Ieri alle] LT',
        lastWeek: function () {
            switch (this.day()) {
                case 0:
                    return '[la scorsa] dddd [alle] LT';
                default:
                    return '[lo scorso] dddd [alle] LT';
            }
        },
        sameElse: 'L'
    },
    relativeTime : {
        future : function (s) {
            return ((/^[0-9].+$/).test(s) ? 'tra' : 'in') + ' ' + s;
        },
        past : '%s fa',
        s : 'alcuni secondi',
        m : 'un minuto',
        mm : '%d minuti',
        h : 'un\'ora',
        hh : '%d ore',
        d : 'un giorno',
        dd : '%d giorni',
        M : 'un mese',
        MM : '%d mesi',
        y : 'un anno',
        yy : '%d anni'
    },
    dayOfMonthOrdinalParse : /\d{1,2}º/,
    ordinal: '%dº',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Japanese [ja]
//! author : LI Long : https://github.com/baryon

hooks.defineLocale('ja', {
    months : '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split('_'),
    monthsShort : '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split('_'),
    weekdays : '日曜日_月曜日_火曜日_水曜日_木曜日_金曜日_土曜日'.split('_'),
    weekdaysShort : '日_月_火_水_木_金_土'.split('_'),
    weekdaysMin : '日_月_火_水_木_金_土'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'YYYY/MM/DD',
        LL : 'YYYY年M月D日',
        LLL : 'YYYY年M月D日 HH:mm',
        LLLL : 'YYYY年M月D日 HH:mm dddd',
        l : 'YYYY/MM/DD',
        ll : 'YYYY年M月D日',
        lll : 'YYYY年M月D日 HH:mm',
        llll : 'YYYY年M月D日 HH:mm dddd'
    },
    meridiemParse: /午前|午後/i,
    isPM : function (input) {
        return input === '午後';
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 12) {
            return '午前';
        } else {
            return '午後';
        }
    },
    calendar : {
        sameDay : '[今日] LT',
        nextDay : '[明日] LT',
        nextWeek : '[来週]dddd LT',
        lastDay : '[昨日] LT',
        lastWeek : '[前週]dddd LT',
        sameElse : 'L'
    },
    dayOfMonthOrdinalParse : /\d{1,2}日/,
    ordinal : function (number, period) {
        switch (period) {
            case 'd':
            case 'D':
            case 'DDD':
                return number + '日';
            default:
                return number;
        }
    },
    relativeTime : {
        future : '%s後',
        past : '%s前',
        s : '数秒',
        m : '1分',
        mm : '%d分',
        h : '1時間',
        hh : '%d時間',
        d : '1日',
        dd : '%d日',
        M : '1ヶ月',
        MM : '%dヶ月',
        y : '1年',
        yy : '%d年'
    }
});

//! moment.js locale configuration
//! locale : Javanese [jv]
//! author : Rony Lantip : https://github.com/lantip
//! reference: http://jv.wikipedia.org/wiki/Basa_Jawa

hooks.defineLocale('jv', {
    months : 'Januari_Februari_Maret_April_Mei_Juni_Juli_Agustus_September_Oktober_Nopember_Desember'.split('_'),
    monthsShort : 'Jan_Feb_Mar_Apr_Mei_Jun_Jul_Ags_Sep_Okt_Nop_Des'.split('_'),
    weekdays : 'Minggu_Senen_Seloso_Rebu_Kemis_Jemuwah_Septu'.split('_'),
    weekdaysShort : 'Min_Sen_Sel_Reb_Kem_Jem_Sep'.split('_'),
    weekdaysMin : 'Mg_Sn_Sl_Rb_Km_Jm_Sp'.split('_'),
    longDateFormat : {
        LT : 'HH.mm',
        LTS : 'HH.mm.ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY [pukul] HH.mm',
        LLLL : 'dddd, D MMMM YYYY [pukul] HH.mm'
    },
    meridiemParse: /enjing|siyang|sonten|ndalu/,
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === 'enjing') {
            return hour;
        } else if (meridiem === 'siyang') {
            return hour >= 11 ? hour : hour + 12;
        } else if (meridiem === 'sonten' || meridiem === 'ndalu') {
            return hour + 12;
        }
    },
    meridiem : function (hours, minutes, isLower) {
        if (hours < 11) {
            return 'enjing';
        } else if (hours < 15) {
            return 'siyang';
        } else if (hours < 19) {
            return 'sonten';
        } else {
            return 'ndalu';
        }
    },
    calendar : {
        sameDay : '[Dinten puniko pukul] LT',
        nextDay : '[Mbenjang pukul] LT',
        nextWeek : 'dddd [pukul] LT',
        lastDay : '[Kala wingi pukul] LT',
        lastWeek : 'dddd [kepengker pukul] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'wonten ing %s',
        past : '%s ingkang kepengker',
        s : 'sawetawis detik',
        m : 'setunggal menit',
        mm : '%d menit',
        h : 'setunggal jam',
        hh : '%d jam',
        d : 'sedinten',
        dd : '%d dinten',
        M : 'sewulan',
        MM : '%d wulan',
        y : 'setaun',
        yy : '%d taun'
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Georgian [ka]
//! author : Irakli Janiashvili : https://github.com/irakli-janiashvili

hooks.defineLocale('ka', {
    months : {
        standalone: 'იანვარი_თებერვალი_მარტი_აპრილი_მაისი_ივნისი_ივლისი_აგვისტო_სექტემბერი_ოქტომბერი_ნოემბერი_დეკემბერი'.split('_'),
        format: 'იანვარს_თებერვალს_მარტს_აპრილის_მაისს_ივნისს_ივლისს_აგვისტს_სექტემბერს_ოქტომბერს_ნოემბერს_დეკემბერს'.split('_')
    },
    monthsShort : 'იან_თებ_მარ_აპრ_მაი_ივნ_ივლ_აგვ_სექ_ოქტ_ნოე_დეკ'.split('_'),
    weekdays : {
        standalone: 'კვირა_ორშაბათი_სამშაბათი_ოთხშაბათი_ხუთშაბათი_პარასკევი_შაბათი'.split('_'),
        format: 'კვირას_ორშაბათს_სამშაბათს_ოთხშაბათს_ხუთშაბათს_პარასკევს_შაბათს'.split('_'),
        isFormat: /(წინა|შემდეგ)/
    },
    weekdaysShort : 'კვი_ორშ_სამ_ოთხ_ხუთ_პარ_შაბ'.split('_'),
    weekdaysMin : 'კვ_ორ_სა_ოთ_ხუ_პა_შა'.split('_'),
    longDateFormat : {
        LT : 'h:mm A',
        LTS : 'h:mm:ss A',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY h:mm A',
        LLLL : 'dddd, D MMMM YYYY h:mm A'
    },
    calendar : {
        sameDay : '[დღეს] LT[-ზე]',
        nextDay : '[ხვალ] LT[-ზე]',
        lastDay : '[გუშინ] LT[-ზე]',
        nextWeek : '[შემდეგ] dddd LT[-ზე]',
        lastWeek : '[წინა] dddd LT-ზე',
        sameElse : 'L'
    },
    relativeTime : {
        future : function (s) {
            return (/(წამი|წუთი|საათი|წელი)/).test(s) ?
                s.replace(/ი$/, 'ში') :
                s + 'ში';
        },
        past : function (s) {
            if ((/(წამი|წუთი|საათი|დღე|თვე)/).test(s)) {
                return s.replace(/(ი|ე)$/, 'ის უკან');
            }
            if ((/წელი/).test(s)) {
                return s.replace(/წელი$/, 'წლის უკან');
            }
        },
        s : 'რამდენიმე წამი',
        m : 'წუთი',
        mm : '%d წუთი',
        h : 'საათი',
        hh : '%d საათი',
        d : 'დღე',
        dd : '%d დღე',
        M : 'თვე',
        MM : '%d თვე',
        y : 'წელი',
        yy : '%d წელი'
    },
    dayOfMonthOrdinalParse: /0|1-ლი|მე-\d{1,2}|\d{1,2}-ე/,
    ordinal : function (number) {
        if (number === 0) {
            return number;
        }
        if (number === 1) {
            return number + '-ლი';
        }
        if ((number < 20) || (number <= 100 && (number % 20 === 0)) || (number % 100 === 0)) {
            return 'მე-' + number;
        }
        return number + '-ე';
    },
    week : {
        dow : 1,
        doy : 7
    }
});

//! moment.js locale configuration
//! locale : Kazakh [kk]
//! authors : Nurlan Rakhimzhanov : https://github.com/nurlan

var suffixes$1 = {
    0: '-ші',
    1: '-ші',
    2: '-ші',
    3: '-ші',
    4: '-ші',
    5: '-ші',
    6: '-шы',
    7: '-ші',
    8: '-ші',
    9: '-шы',
    10: '-шы',
    20: '-шы',
    30: '-шы',
    40: '-шы',
    50: '-ші',
    60: '-шы',
    70: '-ші',
    80: '-ші',
    90: '-шы',
    100: '-ші'
};

hooks.defineLocale('kk', {
    months : 'қаңтар_ақпан_наурыз_сәуір_мамыр_маусым_шілде_тамыз_қыркүйек_қазан_қараша_желтоқсан'.split('_'),
    monthsShort : 'қаң_ақп_нау_сәу_мам_мау_шіл_там_қыр_қаз_қар_жел'.split('_'),
    weekdays : 'жексенбі_дүйсенбі_сейсенбі_сәрсенбі_бейсенбі_жұма_сенбі'.split('_'),
    weekdaysShort : 'жек_дүй_сей_сәр_бей_жұм_сен'.split('_'),
    weekdaysMin : 'жк_дй_сй_ср_бй_жм_сн'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[Бүгін сағат] LT',
        nextDay : '[Ертең сағат] LT',
        nextWeek : 'dddd [сағат] LT',
        lastDay : '[Кеше сағат] LT',
        lastWeek : '[Өткен аптаның] dddd [сағат] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s ішінде',
        past : '%s бұрын',
        s : 'бірнеше секунд',
        m : 'бір минут',
        mm : '%d минут',
        h : 'бір сағат',
        hh : '%d сағат',
        d : 'бір күн',
        dd : '%d күн',
        M : 'бір ай',
        MM : '%d ай',
        y : 'бір жыл',
        yy : '%d жыл'
    },
    dayOfMonthOrdinalParse: /\d{1,2}-(ші|шы)/,
    ordinal : function (number) {
        var a = number % 10,
            b = number >= 100 ? 100 : null;
        return number + (suffixes$1[number] || suffixes$1[a] || suffixes$1[b]);
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Cambodian [km]
//! author : Kruy Vanna : https://github.com/kruyvanna

hooks.defineLocale('km', {
    months: 'មករា_កុម្ភៈ_មីនា_មេសា_ឧសភា_មិថុនា_កក្កដា_សីហា_កញ្ញា_តុលា_វិច្ឆិកា_ធ្នូ'.split('_'),
    monthsShort: 'មករា_កុម្ភៈ_មីនា_មេសា_ឧសភា_មិថុនា_កក្កដា_សីហា_កញ្ញា_តុលា_វិច្ឆិកា_ធ្នូ'.split('_'),
    weekdays: 'អាទិត្យ_ច័ន្ទ_អង្គារ_ពុធ_ព្រហស្បតិ៍_សុក្រ_សៅរ៍'.split('_'),
    weekdaysShort: 'អាទិត្យ_ច័ន្ទ_អង្គារ_ពុធ_ព្រហស្បតិ៍_សុក្រ_សៅរ៍'.split('_'),
    weekdaysMin: 'អាទិត្យ_ច័ន្ទ_អង្គារ_ពុធ_ព្រហស្បតិ៍_សុក្រ_សៅរ៍'.split('_'),
    longDateFormat: {
        LT: 'HH:mm',
        LTS : 'HH:mm:ss',
        L: 'DD/MM/YYYY',
        LL: 'D MMMM YYYY',
        LLL: 'D MMMM YYYY HH:mm',
        LLLL: 'dddd, D MMMM YYYY HH:mm'
    },
    calendar: {
        sameDay: '[ថ្ងៃនេះ ម៉ោង] LT',
        nextDay: '[ស្អែក ម៉ោង] LT',
        nextWeek: 'dddd [ម៉ោង] LT',
        lastDay: '[ម្សិលមិញ ម៉ោង] LT',
        lastWeek: 'dddd [សប្តាហ៍មុន] [ម៉ោង] LT',
        sameElse: 'L'
    },
    relativeTime: {
        future: '%sទៀត',
        past: '%sមុន',
        s: 'ប៉ុន្មានវិនាទី',
        m: 'មួយនាទី',
        mm: '%d នាទី',
        h: 'មួយម៉ោង',
        hh: '%d ម៉ោង',
        d: 'មួយថ្ងៃ',
        dd: '%d ថ្ងៃ',
        M: 'មួយខែ',
        MM: '%d ខែ',
        y: 'មួយឆ្នាំ',
        yy: '%d ឆ្នាំ'
    },
    week: {
        dow: 1, // Monday is the first day of the week.
        doy: 4 // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Kannada [kn]
//! author : Rajeev Naik : https://github.com/rajeevnaikte

var symbolMap$8 = {
    '1': '೧',
    '2': '೨',
    '3': '೩',
    '4': '೪',
    '5': '೫',
    '6': '೬',
    '7': '೭',
    '8': '೮',
    '9': '೯',
    '0': '೦'
};
var numberMap$7 = {
    '೧': '1',
    '೨': '2',
    '೩': '3',
    '೪': '4',
    '೫': '5',
    '೬': '6',
    '೭': '7',
    '೮': '8',
    '೯': '9',
    '೦': '0'
};

hooks.defineLocale('kn', {
    months : 'ಜನವರಿ_ಫೆಬ್ರವರಿ_ಮಾರ್ಚ್_ಏಪ್ರಿಲ್_ಮೇ_ಜೂನ್_ಜುಲೈ_ಆಗಸ್ಟ್_ಸೆಪ್ಟೆಂಬರ್_ಅಕ್ಟೋಬರ್_ನವೆಂಬರ್_ಡಿಸೆಂಬರ್'.split('_'),
    monthsShort : 'ಜನ_ಫೆಬ್ರ_ಮಾರ್ಚ್_ಏಪ್ರಿಲ್_ಮೇ_ಜೂನ್_ಜುಲೈ_ಆಗಸ್ಟ್_ಸೆಪ್ಟೆಂಬ_ಅಕ್ಟೋಬ_ನವೆಂಬ_ಡಿಸೆಂಬ'.split('_'),
    monthsParseExact: true,
    weekdays : 'ಭಾನುವಾರ_ಸೋಮವಾರ_ಮಂಗಳವಾರ_ಬುಧವಾರ_ಗುರುವಾರ_ಶುಕ್ರವಾರ_ಶನಿವಾರ'.split('_'),
    weekdaysShort : 'ಭಾನು_ಸೋಮ_ಮಂಗಳ_ಬುಧ_ಗುರು_ಶುಕ್ರ_ಶನಿ'.split('_'),
    weekdaysMin : 'ಭಾ_ಸೋ_ಮಂ_ಬು_ಗು_ಶು_ಶ'.split('_'),
    longDateFormat : {
        LT : 'A h:mm',
        LTS : 'A h:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY, A h:mm',
        LLLL : 'dddd, D MMMM YYYY, A h:mm'
    },
    calendar : {
        sameDay : '[ಇಂದು] LT',
        nextDay : '[ನಾಳೆ] LT',
        nextWeek : 'dddd, LT',
        lastDay : '[ನಿನ್ನೆ] LT',
        lastWeek : '[ಕೊನೆಯ] dddd, LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s ನಂತರ',
        past : '%s ಹಿಂದೆ',
        s : 'ಕೆಲವು ಕ್ಷಣಗಳು',
        m : 'ಒಂದು ನಿಮಿಷ',
        mm : '%d ನಿಮಿಷ',
        h : 'ಒಂದು ಗಂಟೆ',
        hh : '%d ಗಂಟೆ',
        d : 'ಒಂದು ದಿನ',
        dd : '%d ದಿನ',
        M : 'ಒಂದು ತಿಂಗಳು',
        MM : '%d ತಿಂಗಳು',
        y : 'ಒಂದು ವರ್ಷ',
        yy : '%d ವರ್ಷ'
    },
    preparse: function (string) {
        return string.replace(/[೧೨೩೪೫೬೭೮೯೦]/g, function (match) {
            return numberMap$7[match];
        });
    },
    postformat: function (string) {
        return string.replace(/\d/g, function (match) {
            return symbolMap$8[match];
        });
    },
    meridiemParse: /ರಾತ್ರಿ|ಬೆಳಿಗ್ಗೆ|ಮಧ್ಯಾಹ್ನ|ಸಂಜೆ/,
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === 'ರಾತ್ರಿ') {
            return hour < 4 ? hour : hour + 12;
        } else if (meridiem === 'ಬೆಳಿಗ್ಗೆ') {
            return hour;
        } else if (meridiem === 'ಮಧ್ಯಾಹ್ನ') {
            return hour >= 10 ? hour : hour + 12;
        } else if (meridiem === 'ಸಂಜೆ') {
            return hour + 12;
        }
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 4) {
            return 'ರಾತ್ರಿ';
        } else if (hour < 10) {
            return 'ಬೆಳಿಗ್ಗೆ';
        } else if (hour < 17) {
            return 'ಮಧ್ಯಾಹ್ನ';
        } else if (hour < 20) {
            return 'ಸಂಜೆ';
        } else {
            return 'ರಾತ್ರಿ';
        }
    },
    dayOfMonthOrdinalParse: /\d{1,2}(ನೇ)/,
    ordinal : function (number) {
        return number + 'ನೇ';
    },
    week : {
        dow : 0, // Sunday is the first day of the week.
        doy : 6  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Korean [ko]
//! author : Kyungwook, Park : https://github.com/kyungw00k
//! author : Jeeeyul Lee <jeeeyul@gmail.com>

hooks.defineLocale('ko', {
    months : '1월_2월_3월_4월_5월_6월_7월_8월_9월_10월_11월_12월'.split('_'),
    monthsShort : '1월_2월_3월_4월_5월_6월_7월_8월_9월_10월_11월_12월'.split('_'),
    weekdays : '일요일_월요일_화요일_수요일_목요일_금요일_토요일'.split('_'),
    weekdaysShort : '일_월_화_수_목_금_토'.split('_'),
    weekdaysMin : '일_월_화_수_목_금_토'.split('_'),
    longDateFormat : {
        LT : 'A h:mm',
        LTS : 'A h:mm:ss',
        L : 'YYYY.MM.DD',
        LL : 'YYYY년 MMMM D일',
        LLL : 'YYYY년 MMMM D일 A h:mm',
        LLLL : 'YYYY년 MMMM D일 dddd A h:mm',
        l : 'YYYY.MM.DD',
        ll : 'YYYY년 MMMM D일',
        lll : 'YYYY년 MMMM D일 A h:mm',
        llll : 'YYYY년 MMMM D일 dddd A h:mm'
    },
    calendar : {
        sameDay : '오늘 LT',
        nextDay : '내일 LT',
        nextWeek : 'dddd LT',
        lastDay : '어제 LT',
        lastWeek : '지난주 dddd LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s 후',
        past : '%s 전',
        s : '몇 초',
        ss : '%d초',
        m : '1분',
        mm : '%d분',
        h : '한 시간',
        hh : '%d시간',
        d : '하루',
        dd : '%d일',
        M : '한 달',
        MM : '%d달',
        y : '일 년',
        yy : '%d년'
    },
    dayOfMonthOrdinalParse : /\d{1,2}(일|월|주)/,
    ordinal : function (number, period) {
        switch (period) {
            case 'd':
            case 'D':
            case 'DDD':
                return number + '일';
            case 'M':
                return number + '월';
            case 'w':
            case 'W':
                return number + '주';
            default:
                return number;
        }
    },
    meridiemParse : /오전|오후/,
    isPM : function (token) {
        return token === '오후';
    },
    meridiem : function (hour, minute, isUpper) {
        return hour < 12 ? '오전' : '오후';
    }
});

//! moment.js locale configuration
//! locale : Kyrgyz [ky]
//! author : Chyngyz Arystan uulu : https://github.com/chyngyz


var suffixes$2 = {
    0: '-чү',
    1: '-чи',
    2: '-чи',
    3: '-чү',
    4: '-чү',
    5: '-чи',
    6: '-чы',
    7: '-чи',
    8: '-чи',
    9: '-чу',
    10: '-чу',
    20: '-чы',
    30: '-чу',
    40: '-чы',
    50: '-чү',
    60: '-чы',
    70: '-чи',
    80: '-чи',
    90: '-чу',
    100: '-чү'
};

hooks.defineLocale('ky', {
    months : 'январь_февраль_март_апрель_май_июнь_июль_август_сентябрь_октябрь_ноябрь_декабрь'.split('_'),
    monthsShort : 'янв_фев_март_апр_май_июнь_июль_авг_сен_окт_ноя_дек'.split('_'),
    weekdays : 'Жекшемби_Дүйшөмбү_Шейшемби_Шаршемби_Бейшемби_Жума_Ишемби'.split('_'),
    weekdaysShort : 'Жек_Дүй_Шей_Шар_Бей_Жум_Ише'.split('_'),
    weekdaysMin : 'Жк_Дй_Шй_Шр_Бй_Жм_Иш'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[Бүгүн саат] LT',
        nextDay : '[Эртең саат] LT',
        nextWeek : 'dddd [саат] LT',
        lastDay : '[Кече саат] LT',
        lastWeek : '[Өткен аптанын] dddd [күнү] [саат] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s ичинде',
        past : '%s мурун',
        s : 'бирнече секунд',
        m : 'бир мүнөт',
        mm : '%d мүнөт',
        h : 'бир саат',
        hh : '%d саат',
        d : 'бир күн',
        dd : '%d күн',
        M : 'бир ай',
        MM : '%d ай',
        y : 'бир жыл',
        yy : '%d жыл'
    },
    dayOfMonthOrdinalParse: /\d{1,2}-(чи|чы|чү|чу)/,
    ordinal : function (number) {
        var a = number % 10,
            b = number >= 100 ? 100 : null;
        return number + (suffixes$2[number] || suffixes$2[a] || suffixes$2[b]);
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Luxembourgish [lb]
//! author : mweimerskirch : https://github.com/mweimerskirch
//! author : David Raison : https://github.com/kwisatz

function processRelativeTime$5(number, withoutSuffix, key, isFuture) {
    var format = {
        'm': ['eng Minutt', 'enger Minutt'],
        'h': ['eng Stonn', 'enger Stonn'],
        'd': ['een Dag', 'engem Dag'],
        'M': ['ee Mount', 'engem Mount'],
        'y': ['ee Joer', 'engem Joer']
    };
    return withoutSuffix ? format[key][0] : format[key][1];
}
function processFutureTime(string) {
    var number = string.substr(0, string.indexOf(' '));
    if (eifelerRegelAppliesToNumber(number)) {
        return 'a ' + string;
    }
    return 'an ' + string;
}
function processPastTime(string) {
    var number = string.substr(0, string.indexOf(' '));
    if (eifelerRegelAppliesToNumber(number)) {
        return 'viru ' + string;
    }
    return 'virun ' + string;
}
/**
 * Returns true if the word before the given number loses the '-n' ending.
 * e.g. 'an 10 Deeg' but 'a 5 Deeg'
 *
 * @param number {integer}
 * @returns {boolean}
 */
function eifelerRegelAppliesToNumber(number) {
    number = parseInt(number, 10);
    if (isNaN(number)) {
        return false;
    }
    if (number < 0) {
        // Negative Number --> always true
        return true;
    } else if (number < 10) {
        // Only 1 digit
        if (4 <= number && number <= 7) {
            return true;
        }
        return false;
    } else if (number < 100) {
        // 2 digits
        var lastDigit = number % 10, firstDigit = number / 10;
        if (lastDigit === 0) {
            return eifelerRegelAppliesToNumber(firstDigit);
        }
        return eifelerRegelAppliesToNumber(lastDigit);
    } else if (number < 10000) {
        // 3 or 4 digits --> recursively check first digit
        while (number >= 10) {
            number = number / 10;
        }
        return eifelerRegelAppliesToNumber(number);
    } else {
        // Anything larger than 4 digits: recursively check first n-3 digits
        number = number / 1000;
        return eifelerRegelAppliesToNumber(number);
    }
}

hooks.defineLocale('lb', {
    months: 'Januar_Februar_Mäerz_Abrëll_Mee_Juni_Juli_August_September_Oktober_November_Dezember'.split('_'),
    monthsShort: 'Jan._Febr._Mrz._Abr._Mee_Jun._Jul._Aug._Sept._Okt._Nov._Dez.'.split('_'),
    monthsParseExact : true,
    weekdays: 'Sonndeg_Méindeg_Dënschdeg_Mëttwoch_Donneschdeg_Freideg_Samschdeg'.split('_'),
    weekdaysShort: 'So._Mé._Dë._Më._Do._Fr._Sa.'.split('_'),
    weekdaysMin: 'So_Mé_Dë_Më_Do_Fr_Sa'.split('_'),
    weekdaysParseExact : true,
    longDateFormat: {
        LT: 'H:mm [Auer]',
        LTS: 'H:mm:ss [Auer]',
        L: 'DD.MM.YYYY',
        LL: 'D. MMMM YYYY',
        LLL: 'D. MMMM YYYY H:mm [Auer]',
        LLLL: 'dddd, D. MMMM YYYY H:mm [Auer]'
    },
    calendar: {
        sameDay: '[Haut um] LT',
        sameElse: 'L',
        nextDay: '[Muer um] LT',
        nextWeek: 'dddd [um] LT',
        lastDay: '[Gëschter um] LT',
        lastWeek: function () {
            // Different date string for 'Dënschdeg' (Tuesday) and 'Donneschdeg' (Thursday) due to phonological rule
            switch (this.day()) {
                case 2:
                case 4:
                    return '[Leschten] dddd [um] LT';
                default:
                    return '[Leschte] dddd [um] LT';
            }
        }
    },
    relativeTime : {
        future : processFutureTime,
        past : processPastTime,
        s : 'e puer Sekonnen',
        m : processRelativeTime$5,
        mm : '%d Minutten',
        h : processRelativeTime$5,
        hh : '%d Stonnen',
        d : processRelativeTime$5,
        dd : '%d Deeg',
        M : processRelativeTime$5,
        MM : '%d Méint',
        y : processRelativeTime$5,
        yy : '%d Joer'
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal: '%d.',
    week: {
        dow: 1, // Monday is the first day of the week.
        doy: 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Lao [lo]
//! author : Ryan Hart : https://github.com/ryanhart2

hooks.defineLocale('lo', {
    months : 'ມັງກອນ_ກຸມພາ_ມີນາ_ເມສາ_ພຶດສະພາ_ມິຖຸນາ_ກໍລະກົດ_ສິງຫາ_ກັນຍາ_ຕຸລາ_ພະຈິກ_ທັນວາ'.split('_'),
    monthsShort : 'ມັງກອນ_ກຸມພາ_ມີນາ_ເມສາ_ພຶດສະພາ_ມິຖຸນາ_ກໍລະກົດ_ສິງຫາ_ກັນຍາ_ຕຸລາ_ພະຈິກ_ທັນວາ'.split('_'),
    weekdays : 'ອາທິດ_ຈັນ_ອັງຄານ_ພຸດ_ພະຫັດ_ສຸກ_ເສົາ'.split('_'),
    weekdaysShort : 'ທິດ_ຈັນ_ອັງຄານ_ພຸດ_ພະຫັດ_ສຸກ_ເສົາ'.split('_'),
    weekdaysMin : 'ທ_ຈ_ອຄ_ພ_ພຫ_ສກ_ສ'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'ວັນdddd D MMMM YYYY HH:mm'
    },
    meridiemParse: /ຕອນເຊົ້າ|ຕອນແລງ/,
    isPM: function (input) {
        return input === 'ຕອນແລງ';
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 12) {
            return 'ຕອນເຊົ້າ';
        } else {
            return 'ຕອນແລງ';
        }
    },
    calendar : {
        sameDay : '[ມື້ນີ້ເວລາ] LT',
        nextDay : '[ມື້ອື່ນເວລາ] LT',
        nextWeek : '[ວັນ]dddd[ໜ້າເວລາ] LT',
        lastDay : '[ມື້ວານນີ້ເວລາ] LT',
        lastWeek : '[ວັນ]dddd[ແລ້ວນີ້ເວລາ] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'ອີກ %s',
        past : '%sຜ່ານມາ',
        s : 'ບໍ່ເທົ່າໃດວິນາທີ',
        m : '1 ນາທີ',
        mm : '%d ນາທີ',
        h : '1 ຊົ່ວໂມງ',
        hh : '%d ຊົ່ວໂມງ',
        d : '1 ມື້',
        dd : '%d ມື້',
        M : '1 ເດືອນ',
        MM : '%d ເດືອນ',
        y : '1 ປີ',
        yy : '%d ປີ'
    },
    dayOfMonthOrdinalParse: /(ທີ່)\d{1,2}/,
    ordinal : function (number) {
        return 'ທີ່' + number;
    }
});

//! moment.js locale configuration
//! locale : Lithuanian [lt]
//! author : Mindaugas Mozūras : https://github.com/mmozuras

var units = {
    'm' : 'minutė_minutės_minutę',
    'mm': 'minutės_minučių_minutes',
    'h' : 'valanda_valandos_valandą',
    'hh': 'valandos_valandų_valandas',
    'd' : 'diena_dienos_dieną',
    'dd': 'dienos_dienų_dienas',
    'M' : 'mėnuo_mėnesio_mėnesį',
    'MM': 'mėnesiai_mėnesių_mėnesius',
    'y' : 'metai_metų_metus',
    'yy': 'metai_metų_metus'
};
function translateSeconds(number, withoutSuffix, key, isFuture) {
    if (withoutSuffix) {
        return 'kelios sekundės';
    } else {
        return isFuture ? 'kelių sekundžių' : 'kelias sekundes';
    }
}
function translateSingular(number, withoutSuffix, key, isFuture) {
    return withoutSuffix ? forms(key)[0] : (isFuture ? forms(key)[1] : forms(key)[2]);
}
function special(number) {
    return number % 10 === 0 || (number > 10 && number < 20);
}
function forms(key) {
    return units[key].split('_');
}
function translate$6(number, withoutSuffix, key, isFuture) {
    var result = number + ' ';
    if (number === 1) {
        return result + translateSingular(number, withoutSuffix, key[0], isFuture);
    } else if (withoutSuffix) {
        return result + (special(number) ? forms(key)[1] : forms(key)[0]);
    } else {
        if (isFuture) {
            return result + forms(key)[1];
        } else {
            return result + (special(number) ? forms(key)[1] : forms(key)[2]);
        }
    }
}
hooks.defineLocale('lt', {
    months : {
        format: 'sausio_vasario_kovo_balandžio_gegužės_birželio_liepos_rugpjūčio_rugsėjo_spalio_lapkričio_gruodžio'.split('_'),
        standalone: 'sausis_vasaris_kovas_balandis_gegužė_birželis_liepa_rugpjūtis_rugsėjis_spalis_lapkritis_gruodis'.split('_'),
        isFormat: /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?|MMMM?(\[[^\[\]]*\]|\s)+D[oD]?/
    },
    monthsShort : 'sau_vas_kov_bal_geg_bir_lie_rgp_rgs_spa_lap_grd'.split('_'),
    weekdays : {
        format: 'sekmadienį_pirmadienį_antradienį_trečiadienį_ketvirtadienį_penktadienį_šeštadienį'.split('_'),
        standalone: 'sekmadienis_pirmadienis_antradienis_trečiadienis_ketvirtadienis_penktadienis_šeštadienis'.split('_'),
        isFormat: /dddd HH:mm/
    },
    weekdaysShort : 'Sek_Pir_Ant_Tre_Ket_Pen_Šeš'.split('_'),
    weekdaysMin : 'S_P_A_T_K_Pn_Š'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'YYYY-MM-DD',
        LL : 'YYYY [m.] MMMM D [d.]',
        LLL : 'YYYY [m.] MMMM D [d.], HH:mm [val.]',
        LLLL : 'YYYY [m.] MMMM D [d.], dddd, HH:mm [val.]',
        l : 'YYYY-MM-DD',
        ll : 'YYYY [m.] MMMM D [d.]',
        lll : 'YYYY [m.] MMMM D [d.], HH:mm [val.]',
        llll : 'YYYY [m.] MMMM D [d.], ddd, HH:mm [val.]'
    },
    calendar : {
        sameDay : '[Šiandien] LT',
        nextDay : '[Rytoj] LT',
        nextWeek : 'dddd LT',
        lastDay : '[Vakar] LT',
        lastWeek : '[Praėjusį] dddd LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'po %s',
        past : 'prieš %s',
        s : translateSeconds,
        m : translateSingular,
        mm : translate$6,
        h : translateSingular,
        hh : translate$6,
        d : translateSingular,
        dd : translate$6,
        M : translateSingular,
        MM : translate$6,
        y : translateSingular,
        yy : translate$6
    },
    dayOfMonthOrdinalParse: /\d{1,2}-oji/,
    ordinal : function (number) {
        return number + '-oji';
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Latvian [lv]
//! author : Kristaps Karlsons : https://github.com/skakri
//! author : Jānis Elmeris : https://github.com/JanisE

var units$1 = {
    'm': 'minūtes_minūtēm_minūte_minūtes'.split('_'),
    'mm': 'minūtes_minūtēm_minūte_minūtes'.split('_'),
    'h': 'stundas_stundām_stunda_stundas'.split('_'),
    'hh': 'stundas_stundām_stunda_stundas'.split('_'),
    'd': 'dienas_dienām_diena_dienas'.split('_'),
    'dd': 'dienas_dienām_diena_dienas'.split('_'),
    'M': 'mēneša_mēnešiem_mēnesis_mēneši'.split('_'),
    'MM': 'mēneša_mēnešiem_mēnesis_mēneši'.split('_'),
    'y': 'gada_gadiem_gads_gadi'.split('_'),
    'yy': 'gada_gadiem_gads_gadi'.split('_')
};
/**
 * @param withoutSuffix boolean true = a length of time; false = before/after a period of time.
 */
function format$1(forms, number, withoutSuffix) {
    if (withoutSuffix) {
        // E.g. "21 minūte", "3 minūtes".
        return number % 10 === 1 && number % 100 !== 11 ? forms[2] : forms[3];
    } else {
        // E.g. "21 minūtes" as in "pēc 21 minūtes".
        // E.g. "3 minūtēm" as in "pēc 3 minūtēm".
        return number % 10 === 1 && number % 100 !== 11 ? forms[0] : forms[1];
    }
}
function relativeTimeWithPlural$1(number, withoutSuffix, key) {
    return number + ' ' + format$1(units$1[key], number, withoutSuffix);
}
function relativeTimeWithSingular(number, withoutSuffix, key) {
    return format$1(units$1[key], number, withoutSuffix);
}
function relativeSeconds(number, withoutSuffix) {
    return withoutSuffix ? 'dažas sekundes' : 'dažām sekundēm';
}

hooks.defineLocale('lv', {
    months : 'janvāris_februāris_marts_aprīlis_maijs_jūnijs_jūlijs_augusts_septembris_oktobris_novembris_decembris'.split('_'),
    monthsShort : 'jan_feb_mar_apr_mai_jūn_jūl_aug_sep_okt_nov_dec'.split('_'),
    weekdays : 'svētdiena_pirmdiena_otrdiena_trešdiena_ceturtdiena_piektdiena_sestdiena'.split('_'),
    weekdaysShort : 'Sv_P_O_T_C_Pk_S'.split('_'),
    weekdaysMin : 'Sv_P_O_T_C_Pk_S'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY.',
        LL : 'YYYY. [gada] D. MMMM',
        LLL : 'YYYY. [gada] D. MMMM, HH:mm',
        LLLL : 'YYYY. [gada] D. MMMM, dddd, HH:mm'
    },
    calendar : {
        sameDay : '[Šodien pulksten] LT',
        nextDay : '[Rīt pulksten] LT',
        nextWeek : 'dddd [pulksten] LT',
        lastDay : '[Vakar pulksten] LT',
        lastWeek : '[Pagājušā] dddd [pulksten] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'pēc %s',
        past : 'pirms %s',
        s : relativeSeconds,
        m : relativeTimeWithSingular,
        mm : relativeTimeWithPlural$1,
        h : relativeTimeWithSingular,
        hh : relativeTimeWithPlural$1,
        d : relativeTimeWithSingular,
        dd : relativeTimeWithPlural$1,
        M : relativeTimeWithSingular,
        MM : relativeTimeWithPlural$1,
        y : relativeTimeWithSingular,
        yy : relativeTimeWithPlural$1
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Montenegrin [me]
//! author : Miodrag Nikač <miodrag@restartit.me> : https://github.com/miodragnikac

var translator = {
    words: { //Different grammatical cases
        m: ['jedan minut', 'jednog minuta'],
        mm: ['minut', 'minuta', 'minuta'],
        h: ['jedan sat', 'jednog sata'],
        hh: ['sat', 'sata', 'sati'],
        dd: ['dan', 'dana', 'dana'],
        MM: ['mjesec', 'mjeseca', 'mjeseci'],
        yy: ['godina', 'godine', 'godina']
    },
    correctGrammaticalCase: function (number, wordKey) {
        return number === 1 ? wordKey[0] : (number >= 2 && number <= 4 ? wordKey[1] : wordKey[2]);
    },
    translate: function (number, withoutSuffix, key) {
        var wordKey = translator.words[key];
        if (key.length === 1) {
            return withoutSuffix ? wordKey[0] : wordKey[1];
        } else {
            return number + ' ' + translator.correctGrammaticalCase(number, wordKey);
        }
    }
};

hooks.defineLocale('me', {
    months: 'januar_februar_mart_april_maj_jun_jul_avgust_septembar_oktobar_novembar_decembar'.split('_'),
    monthsShort: 'jan._feb._mar._apr._maj_jun_jul_avg._sep._okt._nov._dec.'.split('_'),
    monthsParseExact : true,
    weekdays: 'nedjelja_ponedjeljak_utorak_srijeda_četvrtak_petak_subota'.split('_'),
    weekdaysShort: 'ned._pon._uto._sri._čet._pet._sub.'.split('_'),
    weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
    weekdaysParseExact : true,
    longDateFormat: {
        LT: 'H:mm',
        LTS : 'H:mm:ss',
        L: 'DD.MM.YYYY',
        LL: 'D. MMMM YYYY',
        LLL: 'D. MMMM YYYY H:mm',
        LLLL: 'dddd, D. MMMM YYYY H:mm'
    },
    calendar: {
        sameDay: '[danas u] LT',
        nextDay: '[sjutra u] LT',

        nextWeek: function () {
            switch (this.day()) {
                case 0:
                    return '[u] [nedjelju] [u] LT';
                case 3:
                    return '[u] [srijedu] [u] LT';
                case 6:
                    return '[u] [subotu] [u] LT';
                case 1:
                case 2:
                case 4:
                case 5:
                    return '[u] dddd [u] LT';
            }
        },
        lastDay  : '[juče u] LT',
        lastWeek : function () {
            var lastWeekDays = [
                '[prošle] [nedjelje] [u] LT',
                '[prošlog] [ponedjeljka] [u] LT',
                '[prošlog] [utorka] [u] LT',
                '[prošle] [srijede] [u] LT',
                '[prošlog] [četvrtka] [u] LT',
                '[prošlog] [petka] [u] LT',
                '[prošle] [subote] [u] LT'
            ];
            return lastWeekDays[this.day()];
        },
        sameElse : 'L'
    },
    relativeTime : {
        future : 'za %s',
        past   : 'prije %s',
        s      : 'nekoliko sekundi',
        m      : translator.translate,
        mm     : translator.translate,
        h      : translator.translate,
        hh     : translator.translate,
        d      : 'dan',
        dd     : translator.translate,
        M      : 'mjesec',
        MM     : translator.translate,
        y      : 'godinu',
        yy     : translator.translate
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Maori [mi]
//! author : John Corrigan <robbiecloset@gmail.com> : https://github.com/johnideal

hooks.defineLocale('mi', {
    months: 'Kohi-tāte_Hui-tanguru_Poutū-te-rangi_Paenga-whāwhā_Haratua_Pipiri_Hōngoingoi_Here-turi-kōkā_Mahuru_Whiringa-ā-nuku_Whiringa-ā-rangi_Hakihea'.split('_'),
    monthsShort: 'Kohi_Hui_Pou_Pae_Hara_Pipi_Hōngoi_Here_Mahu_Whi-nu_Whi-ra_Haki'.split('_'),
    monthsRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
    monthsStrictRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
    monthsShortRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,3}/i,
    monthsShortStrictRegex: /(?:['a-z\u0101\u014D\u016B]+\-?){1,2}/i,
    weekdays: 'Rātapu_Mane_Tūrei_Wenerei_Tāite_Paraire_Hātarei'.split('_'),
    weekdaysShort: 'Ta_Ma_Tū_We_Tāi_Pa_Hā'.split('_'),
    weekdaysMin: 'Ta_Ma_Tū_We_Tāi_Pa_Hā'.split('_'),
    longDateFormat: {
        LT: 'HH:mm',
        LTS: 'HH:mm:ss',
        L: 'DD/MM/YYYY',
        LL: 'D MMMM YYYY',
        LLL: 'D MMMM YYYY [i] HH:mm',
        LLLL: 'dddd, D MMMM YYYY [i] HH:mm'
    },
    calendar: {
        sameDay: '[i teie mahana, i] LT',
        nextDay: '[apopo i] LT',
        nextWeek: 'dddd [i] LT',
        lastDay: '[inanahi i] LT',
        lastWeek: 'dddd [whakamutunga i] LT',
        sameElse: 'L'
    },
    relativeTime: {
        future: 'i roto i %s',
        past: '%s i mua',
        s: 'te hēkona ruarua',
        m: 'he meneti',
        mm: '%d meneti',
        h: 'te haora',
        hh: '%d haora',
        d: 'he ra',
        dd: '%d ra',
        M: 'he marama',
        MM: '%d marama',
        y: 'he tau',
        yy: '%d tau'
    },
    dayOfMonthOrdinalParse: /\d{1,2}º/,
    ordinal: '%dº',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Macedonian [mk]
//! author : Borislav Mickov : https://github.com/B0k0

hooks.defineLocale('mk', {
    months : 'јануари_февруари_март_април_мај_јуни_јули_август_септември_октомври_ноември_декември'.split('_'),
    monthsShort : 'јан_фев_мар_апр_мај_јун_јул_авг_сеп_окт_ное_дек'.split('_'),
    weekdays : 'недела_понеделник_вторник_среда_четврток_петок_сабота'.split('_'),
    weekdaysShort : 'нед_пон_вто_сре_чет_пет_саб'.split('_'),
    weekdaysMin : 'нe_пo_вт_ср_че_пе_сa'.split('_'),
    longDateFormat : {
        LT : 'H:mm',
        LTS : 'H:mm:ss',
        L : 'D.MM.YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY H:mm',
        LLLL : 'dddd, D MMMM YYYY H:mm'
    },
    calendar : {
        sameDay : '[Денес во] LT',
        nextDay : '[Утре во] LT',
        nextWeek : '[Во] dddd [во] LT',
        lastDay : '[Вчера во] LT',
        lastWeek : function () {
            switch (this.day()) {
                case 0:
                case 3:
                case 6:
                    return '[Изминатата] dddd [во] LT';
                case 1:
                case 2:
                case 4:
                case 5:
                    return '[Изминатиот] dddd [во] LT';
            }
        },
        sameElse : 'L'
    },
    relativeTime : {
        future : 'после %s',
        past : 'пред %s',
        s : 'неколку секунди',
        m : 'минута',
        mm : '%d минути',
        h : 'час',
        hh : '%d часа',
        d : 'ден',
        dd : '%d дена',
        M : 'месец',
        MM : '%d месеци',
        y : 'година',
        yy : '%d години'
    },
    dayOfMonthOrdinalParse: /\d{1,2}-(ев|ен|ти|ви|ри|ми)/,
    ordinal : function (number) {
        var lastDigit = number % 10,
            last2Digits = number % 100;
        if (number === 0) {
            return number + '-ев';
        } else if (last2Digits === 0) {
            return number + '-ен';
        } else if (last2Digits > 10 && last2Digits < 20) {
            return number + '-ти';
        } else if (lastDigit === 1) {
            return number + '-ви';
        } else if (lastDigit === 2) {
            return number + '-ри';
        } else if (lastDigit === 7 || lastDigit === 8) {
            return number + '-ми';
        } else {
            return number + '-ти';
        }
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Malayalam [ml]
//! author : Floyd Pink : https://github.com/floydpink

hooks.defineLocale('ml', {
    months : 'ജനുവരി_ഫെബ്രുവരി_മാർച്ച്_ഏപ്രിൽ_മേയ്_ജൂൺ_ജൂലൈ_ഓഗസ്റ്റ്_സെപ്റ്റംബർ_ഒക്ടോബർ_നവംബർ_ഡിസംബർ'.split('_'),
    monthsShort : 'ജനു._ഫെബ്രു._മാർ._ഏപ്രി._മേയ്_ജൂൺ_ജൂലൈ._ഓഗ._സെപ്റ്റ._ഒക്ടോ._നവം._ഡിസം.'.split('_'),
    monthsParseExact : true,
    weekdays : 'ഞായറാഴ്ച_തിങ്കളാഴ്ച_ചൊവ്വാഴ്ച_ബുധനാഴ്ച_വ്യാഴാഴ്ച_വെള്ളിയാഴ്ച_ശനിയാഴ്ച'.split('_'),
    weekdaysShort : 'ഞായർ_തിങ്കൾ_ചൊവ്വ_ബുധൻ_വ്യാഴം_വെള്ളി_ശനി'.split('_'),
    weekdaysMin : 'ഞാ_തി_ചൊ_ബു_വ്യാ_വെ_ശ'.split('_'),
    longDateFormat : {
        LT : 'A h:mm -നു',
        LTS : 'A h:mm:ss -നു',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY, A h:mm -നു',
        LLLL : 'dddd, D MMMM YYYY, A h:mm -നു'
    },
    calendar : {
        sameDay : '[ഇന്ന്] LT',
        nextDay : '[നാളെ] LT',
        nextWeek : 'dddd, LT',
        lastDay : '[ഇന്നലെ] LT',
        lastWeek : '[കഴിഞ്ഞ] dddd, LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s കഴിഞ്ഞ്',
        past : '%s മുൻപ്',
        s : 'അൽപ നിമിഷങ്ങൾ',
        m : 'ഒരു മിനിറ്റ്',
        mm : '%d മിനിറ്റ്',
        h : 'ഒരു മണിക്കൂർ',
        hh : '%d മണിക്കൂർ',
        d : 'ഒരു ദിവസം',
        dd : '%d ദിവസം',
        M : 'ഒരു മാസം',
        MM : '%d മാസം',
        y : 'ഒരു വർഷം',
        yy : '%d വർഷം'
    },
    meridiemParse: /രാത്രി|രാവിലെ|ഉച്ച കഴിഞ്ഞ്|വൈകുന്നേരം|രാത്രി/i,
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if ((meridiem === 'രാത്രി' && hour >= 4) ||
                meridiem === 'ഉച്ച കഴിഞ്ഞ്' ||
                meridiem === 'വൈകുന്നേരം') {
            return hour + 12;
        } else {
            return hour;
        }
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 4) {
            return 'രാത്രി';
        } else if (hour < 12) {
            return 'രാവിലെ';
        } else if (hour < 17) {
            return 'ഉച്ച കഴിഞ്ഞ്';
        } else if (hour < 20) {
            return 'വൈകുന്നേരം';
        } else {
            return 'രാത്രി';
        }
    }
});

//! moment.js locale configuration
//! locale : Marathi [mr]
//! author : Harshad Kale : https://github.com/kalehv
//! author : Vivek Athalye : https://github.com/vnathalye

var symbolMap$9 = {
    '1': '१',
    '2': '२',
    '3': '३',
    '4': '४',
    '5': '५',
    '6': '६',
    '7': '७',
    '8': '८',
    '9': '९',
    '0': '०'
};
var numberMap$8 = {
    '१': '1',
    '२': '2',
    '३': '3',
    '४': '4',
    '५': '5',
    '६': '6',
    '७': '7',
    '८': '8',
    '९': '9',
    '०': '0'
};

function relativeTimeMr(number, withoutSuffix, string, isFuture)
{
    var output = '';
    if (withoutSuffix) {
        switch (string) {
            case 's': output = 'काही सेकंद'; break;
            case 'm': output = 'एक मिनिट'; break;
            case 'mm': output = '%d मिनिटे'; break;
            case 'h': output = 'एक तास'; break;
            case 'hh': output = '%d तास'; break;
            case 'd': output = 'एक दिवस'; break;
            case 'dd': output = '%d दिवस'; break;
            case 'M': output = 'एक महिना'; break;
            case 'MM': output = '%d महिने'; break;
            case 'y': output = 'एक वर्ष'; break;
            case 'yy': output = '%d वर्षे'; break;
        }
    }
    else {
        switch (string) {
            case 's': output = 'काही सेकंदां'; break;
            case 'm': output = 'एका मिनिटा'; break;
            case 'mm': output = '%d मिनिटां'; break;
            case 'h': output = 'एका तासा'; break;
            case 'hh': output = '%d तासां'; break;
            case 'd': output = 'एका दिवसा'; break;
            case 'dd': output = '%d दिवसां'; break;
            case 'M': output = 'एका महिन्या'; break;
            case 'MM': output = '%d महिन्यां'; break;
            case 'y': output = 'एका वर्षा'; break;
            case 'yy': output = '%d वर्षां'; break;
        }
    }
    return output.replace(/%d/i, number);
}

hooks.defineLocale('mr', {
    months : 'जानेवारी_फेब्रुवारी_मार्च_एप्रिल_मे_जून_जुलै_ऑगस्ट_सप्टेंबर_ऑक्टोबर_नोव्हेंबर_डिसेंबर'.split('_'),
    monthsShort: 'जाने._फेब्रु._मार्च._एप्रि._मे._जून._जुलै._ऑग._सप्टें._ऑक्टो._नोव्हें._डिसें.'.split('_'),
    monthsParseExact : true,
    weekdays : 'रविवार_सोमवार_मंगळवार_बुधवार_गुरूवार_शुक्रवार_शनिवार'.split('_'),
    weekdaysShort : 'रवि_सोम_मंगळ_बुध_गुरू_शुक्र_शनि'.split('_'),
    weekdaysMin : 'र_सो_मं_बु_गु_शु_श'.split('_'),
    longDateFormat : {
        LT : 'A h:mm वाजता',
        LTS : 'A h:mm:ss वाजता',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY, A h:mm वाजता',
        LLLL : 'dddd, D MMMM YYYY, A h:mm वाजता'
    },
    calendar : {
        sameDay : '[आज] LT',
        nextDay : '[उद्या] LT',
        nextWeek : 'dddd, LT',
        lastDay : '[काल] LT',
        lastWeek: '[मागील] dddd, LT',
        sameElse : 'L'
    },
    relativeTime : {
        future: '%sमध्ये',
        past: '%sपूर्वी',
        s: relativeTimeMr,
        m: relativeTimeMr,
        mm: relativeTimeMr,
        h: relativeTimeMr,
        hh: relativeTimeMr,
        d: relativeTimeMr,
        dd: relativeTimeMr,
        M: relativeTimeMr,
        MM: relativeTimeMr,
        y: relativeTimeMr,
        yy: relativeTimeMr
    },
    preparse: function (string) {
        return string.replace(/[१२३४५६७८९०]/g, function (match) {
            return numberMap$8[match];
        });
    },
    postformat: function (string) {
        return string.replace(/\d/g, function (match) {
            return symbolMap$9[match];
        });
    },
    meridiemParse: /रात्री|सकाळी|दुपारी|सायंकाळी/,
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === 'रात्री') {
            return hour < 4 ? hour : hour + 12;
        } else if (meridiem === 'सकाळी') {
            return hour;
        } else if (meridiem === 'दुपारी') {
            return hour >= 10 ? hour : hour + 12;
        } else if (meridiem === 'सायंकाळी') {
            return hour + 12;
        }
    },
    meridiem: function (hour, minute, isLower) {
        if (hour < 4) {
            return 'रात्री';
        } else if (hour < 10) {
            return 'सकाळी';
        } else if (hour < 17) {
            return 'दुपारी';
        } else if (hour < 20) {
            return 'सायंकाळी';
        } else {
            return 'रात्री';
        }
    },
    week : {
        dow : 0, // Sunday is the first day of the week.
        doy : 6  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Malay [ms-my]
//! note : DEPRECATED, the correct one is [ms]
//! author : Weldan Jamili : https://github.com/weldan

hooks.defineLocale('ms-my', {
    months : 'Januari_Februari_Mac_April_Mei_Jun_Julai_Ogos_September_Oktober_November_Disember'.split('_'),
    monthsShort : 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ogs_Sep_Okt_Nov_Dis'.split('_'),
    weekdays : 'Ahad_Isnin_Selasa_Rabu_Khamis_Jumaat_Sabtu'.split('_'),
    weekdaysShort : 'Ahd_Isn_Sel_Rab_Kha_Jum_Sab'.split('_'),
    weekdaysMin : 'Ah_Is_Sl_Rb_Km_Jm_Sb'.split('_'),
    longDateFormat : {
        LT : 'HH.mm',
        LTS : 'HH.mm.ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY [pukul] HH.mm',
        LLLL : 'dddd, D MMMM YYYY [pukul] HH.mm'
    },
    meridiemParse: /pagi|tengahari|petang|malam/,
    meridiemHour: function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === 'pagi') {
            return hour;
        } else if (meridiem === 'tengahari') {
            return hour >= 11 ? hour : hour + 12;
        } else if (meridiem === 'petang' || meridiem === 'malam') {
            return hour + 12;
        }
    },
    meridiem : function (hours, minutes, isLower) {
        if (hours < 11) {
            return 'pagi';
        } else if (hours < 15) {
            return 'tengahari';
        } else if (hours < 19) {
            return 'petang';
        } else {
            return 'malam';
        }
    },
    calendar : {
        sameDay : '[Hari ini pukul] LT',
        nextDay : '[Esok pukul] LT',
        nextWeek : 'dddd [pukul] LT',
        lastDay : '[Kelmarin pukul] LT',
        lastWeek : 'dddd [lepas pukul] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'dalam %s',
        past : '%s yang lepas',
        s : 'beberapa saat',
        m : 'seminit',
        mm : '%d minit',
        h : 'sejam',
        hh : '%d jam',
        d : 'sehari',
        dd : '%d hari',
        M : 'sebulan',
        MM : '%d bulan',
        y : 'setahun',
        yy : '%d tahun'
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Malay [ms]
//! author : Weldan Jamili : https://github.com/weldan

hooks.defineLocale('ms', {
    months : 'Januari_Februari_Mac_April_Mei_Jun_Julai_Ogos_September_Oktober_November_Disember'.split('_'),
    monthsShort : 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ogs_Sep_Okt_Nov_Dis'.split('_'),
    weekdays : 'Ahad_Isnin_Selasa_Rabu_Khamis_Jumaat_Sabtu'.split('_'),
    weekdaysShort : 'Ahd_Isn_Sel_Rab_Kha_Jum_Sab'.split('_'),
    weekdaysMin : 'Ah_Is_Sl_Rb_Km_Jm_Sb'.split('_'),
    longDateFormat : {
        LT : 'HH.mm',
        LTS : 'HH.mm.ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY [pukul] HH.mm',
        LLLL : 'dddd, D MMMM YYYY [pukul] HH.mm'
    },
    meridiemParse: /pagi|tengahari|petang|malam/,
    meridiemHour: function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === 'pagi') {
            return hour;
        } else if (meridiem === 'tengahari') {
            return hour >= 11 ? hour : hour + 12;
        } else if (meridiem === 'petang' || meridiem === 'malam') {
            return hour + 12;
        }
    },
    meridiem : function (hours, minutes, isLower) {
        if (hours < 11) {
            return 'pagi';
        } else if (hours < 15) {
            return 'tengahari';
        } else if (hours < 19) {
            return 'petang';
        } else {
            return 'malam';
        }
    },
    calendar : {
        sameDay : '[Hari ini pukul] LT',
        nextDay : '[Esok pukul] LT',
        nextWeek : 'dddd [pukul] LT',
        lastDay : '[Kelmarin pukul] LT',
        lastWeek : 'dddd [lepas pukul] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'dalam %s',
        past : '%s yang lepas',
        s : 'beberapa saat',
        m : 'seminit',
        mm : '%d minit',
        h : 'sejam',
        hh : '%d jam',
        d : 'sehari',
        dd : '%d hari',
        M : 'sebulan',
        MM : '%d bulan',
        y : 'setahun',
        yy : '%d tahun'
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Burmese [my]
//! author : Squar team, mysquar.com
//! author : David Rossellat : https://github.com/gholadr
//! author : Tin Aung Lin : https://github.com/thanyawzinmin

var symbolMap$10 = {
    '1': '၁',
    '2': '၂',
    '3': '၃',
    '4': '၄',
    '5': '၅',
    '6': '၆',
    '7': '၇',
    '8': '၈',
    '9': '၉',
    '0': '၀'
};
var numberMap$9 = {
    '၁': '1',
    '၂': '2',
    '၃': '3',
    '၄': '4',
    '၅': '5',
    '၆': '6',
    '၇': '7',
    '၈': '8',
    '၉': '9',
    '၀': '0'
};

hooks.defineLocale('my', {
    months: 'ဇန်နဝါရီ_ဖေဖော်ဝါရီ_မတ်_ဧပြီ_မေ_ဇွန်_ဇူလိုင်_သြဂုတ်_စက်တင်ဘာ_အောက်တိုဘာ_နိုဝင်ဘာ_ဒီဇင်ဘာ'.split('_'),
    monthsShort: 'ဇန်_ဖေ_မတ်_ပြီ_မေ_ဇွန်_လိုင်_သြ_စက်_အောက်_နို_ဒီ'.split('_'),
    weekdays: 'တနင်္ဂနွေ_တနင်္လာ_အင်္ဂါ_ဗုဒ္ဓဟူး_ကြာသပတေး_သောကြာ_စနေ'.split('_'),
    weekdaysShort: 'နွေ_လာ_ဂါ_ဟူး_ကြာ_သော_နေ'.split('_'),
    weekdaysMin: 'နွေ_လာ_ဂါ_ဟူး_ကြာ_သော_နေ'.split('_'),

    longDateFormat: {
        LT: 'HH:mm',
        LTS: 'HH:mm:ss',
        L: 'DD/MM/YYYY',
        LL: 'D MMMM YYYY',
        LLL: 'D MMMM YYYY HH:mm',
        LLLL: 'dddd D MMMM YYYY HH:mm'
    },
    calendar: {
        sameDay: '[ယနေ.] LT [မှာ]',
        nextDay: '[မနက်ဖြန်] LT [မှာ]',
        nextWeek: 'dddd LT [မှာ]',
        lastDay: '[မနေ.က] LT [မှာ]',
        lastWeek: '[ပြီးခဲ့သော] dddd LT [မှာ]',
        sameElse: 'L'
    },
    relativeTime: {
        future: 'လာမည့် %s မှာ',
        past: 'လွန်ခဲ့သော %s က',
        s: 'စက္ကန်.အနည်းငယ်',
        m: 'တစ်မိနစ်',
        mm: '%d မိနစ်',
        h: 'တစ်နာရီ',
        hh: '%d နာရီ',
        d: 'တစ်ရက်',
        dd: '%d ရက်',
        M: 'တစ်လ',
        MM: '%d လ',
        y: 'တစ်နှစ်',
        yy: '%d နှစ်'
    },
    preparse: function (string) {
        return string.replace(/[၁၂၃၄၅၆၇၈၉၀]/g, function (match) {
            return numberMap$9[match];
        });
    },
    postformat: function (string) {
        return string.replace(/\d/g, function (match) {
            return symbolMap$10[match];
        });
    },
    week: {
        dow: 1, // Monday is the first day of the week.
        doy: 4 // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Norwegian Bokmål [nb]
//! authors : Espen Hovlandsdal : https://github.com/rexxars
//!           Sigurd Gartmann : https://github.com/sigurdga

hooks.defineLocale('nb', {
    months : 'januar_februar_mars_april_mai_juni_juli_august_september_oktober_november_desember'.split('_'),
    monthsShort : 'jan._feb._mars_april_mai_juni_juli_aug._sep._okt._nov._des.'.split('_'),
    monthsParseExact : true,
    weekdays : 'søndag_mandag_tirsdag_onsdag_torsdag_fredag_lørdag'.split('_'),
    weekdaysShort : 'sø._ma._ti._on._to._fr._lø.'.split('_'),
    weekdaysMin : 'sø_ma_ti_on_to_fr_lø'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D. MMMM YYYY',
        LLL : 'D. MMMM YYYY [kl.] HH:mm',
        LLLL : 'dddd D. MMMM YYYY [kl.] HH:mm'
    },
    calendar : {
        sameDay: '[i dag kl.] LT',
        nextDay: '[i morgen kl.] LT',
        nextWeek: 'dddd [kl.] LT',
        lastDay: '[i går kl.] LT',
        lastWeek: '[forrige] dddd [kl.] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'om %s',
        past : '%s siden',
        s : 'noen sekunder',
        m : 'ett minutt',
        mm : '%d minutter',
        h : 'en time',
        hh : '%d timer',
        d : 'en dag',
        dd : '%d dager',
        M : 'en måned',
        MM : '%d måneder',
        y : 'ett år',
        yy : '%d år'
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Nepalese [ne]
//! author : suvash : https://github.com/suvash

var symbolMap$11 = {
    '1': '१',
    '2': '२',
    '3': '३',
    '4': '४',
    '5': '५',
    '6': '६',
    '7': '७',
    '8': '८',
    '9': '९',
    '0': '०'
};
var numberMap$10 = {
    '१': '1',
    '२': '2',
    '३': '3',
    '४': '4',
    '५': '5',
    '६': '6',
    '७': '7',
    '८': '8',
    '९': '9',
    '०': '0'
};

hooks.defineLocale('ne', {
    months : 'जनवरी_फेब्रुवरी_मार्च_अप्रिल_मई_जुन_जुलाई_अगष्ट_सेप्टेम्बर_अक्टोबर_नोभेम्बर_डिसेम्बर'.split('_'),
    monthsShort : 'जन._फेब्रु._मार्च_अप्रि._मई_जुन_जुलाई._अग._सेप्ट._अक्टो._नोभे._डिसे.'.split('_'),
    monthsParseExact : true,
    weekdays : 'आइतबार_सोमबार_मङ्गलबार_बुधबार_बिहिबार_शुक्रबार_शनिबार'.split('_'),
    weekdaysShort : 'आइत._सोम._मङ्गल._बुध._बिहि._शुक्र._शनि.'.split('_'),
    weekdaysMin : 'आ._सो._मं._बु._बि._शु._श.'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'Aको h:mm बजे',
        LTS : 'Aको h:mm:ss बजे',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY, Aको h:mm बजे',
        LLLL : 'dddd, D MMMM YYYY, Aको h:mm बजे'
    },
    preparse: function (string) {
        return string.replace(/[१२३४५६७८९०]/g, function (match) {
            return numberMap$10[match];
        });
    },
    postformat: function (string) {
        return string.replace(/\d/g, function (match) {
            return symbolMap$11[match];
        });
    },
    meridiemParse: /राति|बिहान|दिउँसो|साँझ/,
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === 'राति') {
            return hour < 4 ? hour : hour + 12;
        } else if (meridiem === 'बिहान') {
            return hour;
        } else if (meridiem === 'दिउँसो') {
            return hour >= 10 ? hour : hour + 12;
        } else if (meridiem === 'साँझ') {
            return hour + 12;
        }
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 3) {
            return 'राति';
        } else if (hour < 12) {
            return 'बिहान';
        } else if (hour < 16) {
            return 'दिउँसो';
        } else if (hour < 20) {
            return 'साँझ';
        } else {
            return 'राति';
        }
    },
    calendar : {
        sameDay : '[आज] LT',
        nextDay : '[भोलि] LT',
        nextWeek : '[आउँदो] dddd[,] LT',
        lastDay : '[हिजो] LT',
        lastWeek : '[गएको] dddd[,] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%sमा',
        past : '%s अगाडि',
        s : 'केही क्षण',
        m : 'एक मिनेट',
        mm : '%d मिनेट',
        h : 'एक घण्टा',
        hh : '%d घण्टा',
        d : 'एक दिन',
        dd : '%d दिन',
        M : 'एक महिना',
        MM : '%d महिना',
        y : 'एक बर्ष',
        yy : '%d बर्ष'
    },
    week : {
        dow : 0, // Sunday is the first day of the week.
        doy : 6  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Dutch (Belgium) [nl-be]
//! author : Joris Röling : https://github.com/jorisroling
//! author : Jacob Middag : https://github.com/middagj

var monthsShortWithDots$1 = 'jan._feb._mrt._apr._mei_jun._jul._aug._sep._okt._nov._dec.'.split('_');
var monthsShortWithoutDots$1 = 'jan_feb_mrt_apr_mei_jun_jul_aug_sep_okt_nov_dec'.split('_');

var monthsParse$2 = [/^jan/i, /^feb/i, /^maart|mrt.?$/i, /^apr/i, /^mei$/i, /^jun[i.]?$/i, /^jul[i.]?$/i, /^aug/i, /^sep/i, /^okt/i, /^nov/i, /^dec/i];
var monthsRegex$3 = /^(januari|februari|maart|april|mei|april|ju[nl]i|augustus|september|oktober|november|december|jan\.?|feb\.?|mrt\.?|apr\.?|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i;

hooks.defineLocale('nl-be', {
    months : 'januari_februari_maart_april_mei_juni_juli_augustus_september_oktober_november_december'.split('_'),
    monthsShort : function (m, format) {
        if (!m) {
            return monthsShortWithDots$1;
        } else if (/-MMM-/.test(format)) {
            return monthsShortWithoutDots$1[m.month()];
        } else {
            return monthsShortWithDots$1[m.month()];
        }
    },

    monthsRegex: monthsRegex$3,
    monthsShortRegex: monthsRegex$3,
    monthsStrictRegex: /^(januari|februari|maart|mei|ju[nl]i|april|augustus|september|oktober|november|december)/i,
    monthsShortStrictRegex: /^(jan\.?|feb\.?|mrt\.?|apr\.?|mei|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i,

    monthsParse : monthsParse$2,
    longMonthsParse : monthsParse$2,
    shortMonthsParse : monthsParse$2,

    weekdays : 'zondag_maandag_dinsdag_woensdag_donderdag_vrijdag_zaterdag'.split('_'),
    weekdaysShort : 'zo._ma._di._wo._do._vr._za.'.split('_'),
    weekdaysMin : 'zo_ma_di_wo_do_vr_za'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[vandaag om] LT',
        nextDay: '[morgen om] LT',
        nextWeek: 'dddd [om] LT',
        lastDay: '[gisteren om] LT',
        lastWeek: '[afgelopen] dddd [om] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'over %s',
        past : '%s geleden',
        s : 'een paar seconden',
        m : 'één minuut',
        mm : '%d minuten',
        h : 'één uur',
        hh : '%d uur',
        d : 'één dag',
        dd : '%d dagen',
        M : 'één maand',
        MM : '%d maanden',
        y : 'één jaar',
        yy : '%d jaar'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
    ordinal : function (number) {
        return number + ((number === 1 || number === 8 || number >= 20) ? 'ste' : 'de');
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Dutch [nl]
//! author : Joris Röling : https://github.com/jorisroling
//! author : Jacob Middag : https://github.com/middagj

var monthsShortWithDots$2 = 'jan._feb._mrt._apr._mei_jun._jul._aug._sep._okt._nov._dec.'.split('_');
var monthsShortWithoutDots$2 = 'jan_feb_mrt_apr_mei_jun_jul_aug_sep_okt_nov_dec'.split('_');

var monthsParse$3 = [/^jan/i, /^feb/i, /^maart|mrt.?$/i, /^apr/i, /^mei$/i, /^jun[i.]?$/i, /^jul[i.]?$/i, /^aug/i, /^sep/i, /^okt/i, /^nov/i, /^dec/i];
var monthsRegex$4 = /^(januari|februari|maart|april|mei|april|ju[nl]i|augustus|september|oktober|november|december|jan\.?|feb\.?|mrt\.?|apr\.?|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i;

hooks.defineLocale('nl', {
    months : 'januari_februari_maart_april_mei_juni_juli_augustus_september_oktober_november_december'.split('_'),
    monthsShort : function (m, format) {
        if (!m) {
            return monthsShortWithDots$2;
        } else if (/-MMM-/.test(format)) {
            return monthsShortWithoutDots$2[m.month()];
        } else {
            return monthsShortWithDots$2[m.month()];
        }
    },

    monthsRegex: monthsRegex$4,
    monthsShortRegex: monthsRegex$4,
    monthsStrictRegex: /^(januari|februari|maart|mei|ju[nl]i|april|augustus|september|oktober|november|december)/i,
    monthsShortStrictRegex: /^(jan\.?|feb\.?|mrt\.?|apr\.?|mei|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i,

    monthsParse : monthsParse$3,
    longMonthsParse : monthsParse$3,
    shortMonthsParse : monthsParse$3,

    weekdays : 'zondag_maandag_dinsdag_woensdag_donderdag_vrijdag_zaterdag'.split('_'),
    weekdaysShort : 'zo._ma._di._wo._do._vr._za.'.split('_'),
    weekdaysMin : 'zo_ma_di_wo_do_vr_za'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD-MM-YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[vandaag om] LT',
        nextDay: '[morgen om] LT',
        nextWeek: 'dddd [om] LT',
        lastDay: '[gisteren om] LT',
        lastWeek: '[afgelopen] dddd [om] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'over %s',
        past : '%s geleden',
        s : 'een paar seconden',
        m : 'één minuut',
        mm : '%d minuten',
        h : 'één uur',
        hh : '%d uur',
        d : 'één dag',
        dd : '%d dagen',
        M : 'één maand',
        MM : '%d maanden',
        y : 'één jaar',
        yy : '%d jaar'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
    ordinal : function (number) {
        return number + ((number === 1 || number === 8 || number >= 20) ? 'ste' : 'de');
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Nynorsk [nn]
//! author : https://github.com/mechuwind

hooks.defineLocale('nn', {
    months : 'januar_februar_mars_april_mai_juni_juli_august_september_oktober_november_desember'.split('_'),
    monthsShort : 'jan_feb_mar_apr_mai_jun_jul_aug_sep_okt_nov_des'.split('_'),
    weekdays : 'sundag_måndag_tysdag_onsdag_torsdag_fredag_laurdag'.split('_'),
    weekdaysShort : 'sun_mån_tys_ons_tor_fre_lau'.split('_'),
    weekdaysMin : 'su_må_ty_on_to_fr_lø'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D. MMMM YYYY',
        LLL : 'D. MMMM YYYY [kl.] H:mm',
        LLLL : 'dddd D. MMMM YYYY [kl.] HH:mm'
    },
    calendar : {
        sameDay: '[I dag klokka] LT',
        nextDay: '[I morgon klokka] LT',
        nextWeek: 'dddd [klokka] LT',
        lastDay: '[I går klokka] LT',
        lastWeek: '[Føregåande] dddd [klokka] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'om %s',
        past : '%s sidan',
        s : 'nokre sekund',
        m : 'eit minutt',
        mm : '%d minutt',
        h : 'ein time',
        hh : '%d timar',
        d : 'ein dag',
        dd : '%d dagar',
        M : 'ein månad',
        MM : '%d månader',
        y : 'eit år',
        yy : '%d år'
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Punjabi (India) [pa-in]
//! author : Harpreet Singh : https://github.com/harpreetkhalsagtbit

var symbolMap$12 = {
    '1': '੧',
    '2': '੨',
    '3': '੩',
    '4': '੪',
    '5': '੫',
    '6': '੬',
    '7': '੭',
    '8': '੮',
    '9': '੯',
    '0': '੦'
};
var numberMap$11 = {
    '੧': '1',
    '੨': '2',
    '੩': '3',
    '੪': '4',
    '੫': '5',
    '੬': '6',
    '੭': '7',
    '੮': '8',
    '੯': '9',
    '੦': '0'
};

hooks.defineLocale('pa-in', {
    // There are months name as per Nanakshahi Calender but they are not used as rigidly in modern Punjabi.
    months : 'ਜਨਵਰੀ_ਫ਼ਰਵਰੀ_ਮਾਰਚ_ਅਪ੍ਰੈਲ_ਮਈ_ਜੂਨ_ਜੁਲਾਈ_ਅਗਸਤ_ਸਤੰਬਰ_ਅਕਤੂਬਰ_ਨਵੰਬਰ_ਦਸੰਬਰ'.split('_'),
    monthsShort : 'ਜਨਵਰੀ_ਫ਼ਰਵਰੀ_ਮਾਰਚ_ਅਪ੍ਰੈਲ_ਮਈ_ਜੂਨ_ਜੁਲਾਈ_ਅਗਸਤ_ਸਤੰਬਰ_ਅਕਤੂਬਰ_ਨਵੰਬਰ_ਦਸੰਬਰ'.split('_'),
    weekdays : 'ਐਤਵਾਰ_ਸੋਮਵਾਰ_ਮੰਗਲਵਾਰ_ਬੁਧਵਾਰ_ਵੀਰਵਾਰ_ਸ਼ੁੱਕਰਵਾਰ_ਸ਼ਨੀਚਰਵਾਰ'.split('_'),
    weekdaysShort : 'ਐਤ_ਸੋਮ_ਮੰਗਲ_ਬੁਧ_ਵੀਰ_ਸ਼ੁਕਰ_ਸ਼ਨੀ'.split('_'),
    weekdaysMin : 'ਐਤ_ਸੋਮ_ਮੰਗਲ_ਬੁਧ_ਵੀਰ_ਸ਼ੁਕਰ_ਸ਼ਨੀ'.split('_'),
    longDateFormat : {
        LT : 'A h:mm ਵਜੇ',
        LTS : 'A h:mm:ss ਵਜੇ',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY, A h:mm ਵਜੇ',
        LLLL : 'dddd, D MMMM YYYY, A h:mm ਵਜੇ'
    },
    calendar : {
        sameDay : '[ਅਜ] LT',
        nextDay : '[ਕਲ] LT',
        nextWeek : 'dddd, LT',
        lastDay : '[ਕਲ] LT',
        lastWeek : '[ਪਿਛਲੇ] dddd, LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s ਵਿੱਚ',
        past : '%s ਪਿਛਲੇ',
        s : 'ਕੁਝ ਸਕਿੰਟ',
        m : 'ਇਕ ਮਿੰਟ',
        mm : '%d ਮਿੰਟ',
        h : 'ਇੱਕ ਘੰਟਾ',
        hh : '%d ਘੰਟੇ',
        d : 'ਇੱਕ ਦਿਨ',
        dd : '%d ਦਿਨ',
        M : 'ਇੱਕ ਮਹੀਨਾ',
        MM : '%d ਮਹੀਨੇ',
        y : 'ਇੱਕ ਸਾਲ',
        yy : '%d ਸਾਲ'
    },
    preparse: function (string) {
        return string.replace(/[੧੨੩੪੫੬੭੮੯੦]/g, function (match) {
            return numberMap$11[match];
        });
    },
    postformat: function (string) {
        return string.replace(/\d/g, function (match) {
            return symbolMap$12[match];
        });
    },
    // Punjabi notation for meridiems are quite fuzzy in practice. While there exists
    // a rigid notion of a 'Pahar' it is not used as rigidly in modern Punjabi.
    meridiemParse: /ਰਾਤ|ਸਵੇਰ|ਦੁਪਹਿਰ|ਸ਼ਾਮ/,
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === 'ਰਾਤ') {
            return hour < 4 ? hour : hour + 12;
        } else if (meridiem === 'ਸਵੇਰ') {
            return hour;
        } else if (meridiem === 'ਦੁਪਹਿਰ') {
            return hour >= 10 ? hour : hour + 12;
        } else if (meridiem === 'ਸ਼ਾਮ') {
            return hour + 12;
        }
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 4) {
            return 'ਰਾਤ';
        } else if (hour < 10) {
            return 'ਸਵੇਰ';
        } else if (hour < 17) {
            return 'ਦੁਪਹਿਰ';
        } else if (hour < 20) {
            return 'ਸ਼ਾਮ';
        } else {
            return 'ਰਾਤ';
        }
    },
    week : {
        dow : 0, // Sunday is the first day of the week.
        doy : 6  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Polish [pl]
//! author : Rafal Hirsz : https://github.com/evoL

var monthsNominative = 'styczeń_luty_marzec_kwiecień_maj_czerwiec_lipiec_sierpień_wrzesień_październik_listopad_grudzień'.split('_');
var monthsSubjective = 'stycznia_lutego_marca_kwietnia_maja_czerwca_lipca_sierpnia_września_października_listopada_grudnia'.split('_');
function plural$3(n) {
    return (n % 10 < 5) && (n % 10 > 1) && ((~~(n / 10) % 10) !== 1);
}
function translate$7(number, withoutSuffix, key) {
    var result = number + ' ';
    switch (key) {
        case 'm':
            return withoutSuffix ? 'minuta' : 'minutę';
        case 'mm':
            return result + (plural$3(number) ? 'minuty' : 'minut');
        case 'h':
            return withoutSuffix  ? 'godzina'  : 'godzinę';
        case 'hh':
            return result + (plural$3(number) ? 'godziny' : 'godzin');
        case 'MM':
            return result + (plural$3(number) ? 'miesiące' : 'miesięcy');
        case 'yy':
            return result + (plural$3(number) ? 'lata' : 'lat');
    }
}

hooks.defineLocale('pl', {
    months : function (momentToFormat, format) {
        if (!momentToFormat) {
            return monthsNominative;
        } else if (format === '') {
            // Hack: if format empty we know this is used to generate
            // RegExp by moment. Give then back both valid forms of months
            // in RegExp ready format.
            return '(' + monthsSubjective[momentToFormat.month()] + '|' + monthsNominative[momentToFormat.month()] + ')';
        } else if (/D MMMM/.test(format)) {
            return monthsSubjective[momentToFormat.month()];
        } else {
            return monthsNominative[momentToFormat.month()];
        }
    },
    monthsShort : 'sty_lut_mar_kwi_maj_cze_lip_sie_wrz_paź_lis_gru'.split('_'),
    weekdays : 'niedziela_poniedziałek_wtorek_środa_czwartek_piątek_sobota'.split('_'),
    weekdaysShort : 'ndz_pon_wt_śr_czw_pt_sob'.split('_'),
    weekdaysMin : 'Nd_Pn_Wt_Śr_Cz_Pt_So'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[Dziś o] LT',
        nextDay: '[Jutro o] LT',
        nextWeek: function () {
            switch (this.day()) {
                case 0:
                    return '[W niedzielę o] LT';

                case 2:
                    return '[We wtorek o] LT';

                case 3:
                    return '[W środę o] LT';

                case 6:
                    return '[W sobotę o] LT';

                default:
                    return '[W] dddd [o] LT';
            }
        },
        lastDay: '[Wczoraj o] LT',
        lastWeek: function () {
            switch (this.day()) {
                case 0:
                    return '[W zeszłą niedzielę o] LT';
                case 3:
                    return '[W zeszłą środę o] LT';
                case 6:
                    return '[W zeszłą sobotę o] LT';
                default:
                    return '[W zeszły] dddd [o] LT';
            }
        },
        sameElse: 'L'
    },
    relativeTime : {
        future : 'za %s',
        past : '%s temu',
        s : 'kilka sekund',
        m : translate$7,
        mm : translate$7,
        h : translate$7,
        hh : translate$7,
        d : '1 dzień',
        dd : '%d dni',
        M : 'miesiąc',
        MM : translate$7,
        y : 'rok',
        yy : translate$7
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Portuguese (Brazil) [pt-br]
//! author : Caio Ribeiro Pereira : https://github.com/caio-ribeiro-pereira

hooks.defineLocale('pt-br', {
    months : 'janeiro_fevereiro_março_abril_maio_junho_julho_agosto_setembro_outubro_novembro_dezembro'.split('_'),
    monthsShort : 'jan_fev_mar_abr_mai_jun_jul_ago_set_out_nov_dez'.split('_'),
    weekdays : 'Domingo_Segunda-feira_Terça-feira_Quarta-feira_Quinta-feira_Sexta-feira_Sábado'.split('_'),
    weekdaysShort : 'Dom_Seg_Ter_Qua_Qui_Sex_Sáb'.split('_'),
    weekdaysMin : 'Do_2ª_3ª_4ª_5ª_6ª_Sá'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D [de] MMMM [de] YYYY',
        LLL : 'D [de] MMMM [de] YYYY [às] HH:mm',
        LLLL : 'dddd, D [de] MMMM [de] YYYY [às] HH:mm'
    },
    calendar : {
        sameDay: '[Hoje às] LT',
        nextDay: '[Amanhã às] LT',
        nextWeek: 'dddd [às] LT',
        lastDay: '[Ontem às] LT',
        lastWeek: function () {
            return (this.day() === 0 || this.day() === 6) ?
                '[Último] dddd [às] LT' : // Saturday + Sunday
                '[Última] dddd [às] LT'; // Monday - Friday
        },
        sameElse: 'L'
    },
    relativeTime : {
        future : 'em %s',
        past : '%s atrás',
        s : 'poucos segundos',
        ss : '%d segundos',
        m : 'um minuto',
        mm : '%d minutos',
        h : 'uma hora',
        hh : '%d horas',
        d : 'um dia',
        dd : '%d dias',
        M : 'um mês',
        MM : '%d meses',
        y : 'um ano',
        yy : '%d anos'
    },
    dayOfMonthOrdinalParse: /\d{1,2}º/,
    ordinal : '%dº'
});

//! moment.js locale configuration
//! locale : Portuguese [pt]
//! author : Jefferson : https://github.com/jalex79

hooks.defineLocale('pt', {
    months : 'janeiro_fevereiro_março_abril_maio_junho_julho_agosto_setembro_outubro_novembro_dezembro'.split('_'),
    monthsShort : 'jan_fev_mar_abr_mai_jun_jul_ago_set_out_nov_dez'.split('_'),
    weekdays : 'Domingo_Segunda-feira_Terça-feira_Quarta-feira_Quinta-feira_Sexta-feira_Sábado'.split('_'),
    weekdaysShort : 'Dom_Seg_Ter_Qua_Qui_Sex_Sáb'.split('_'),
    weekdaysMin : 'Do_2ª_3ª_4ª_5ª_6ª_Sá'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D [de] MMMM [de] YYYY',
        LLL : 'D [de] MMMM [de] YYYY HH:mm',
        LLLL : 'dddd, D [de] MMMM [de] YYYY HH:mm'
    },
    calendar : {
        sameDay: '[Hoje às] LT',
        nextDay: '[Amanhã às] LT',
        nextWeek: 'dddd [às] LT',
        lastDay: '[Ontem às] LT',
        lastWeek: function () {
            return (this.day() === 0 || this.day() === 6) ?
                '[Último] dddd [às] LT' : // Saturday + Sunday
                '[Última] dddd [às] LT'; // Monday - Friday
        },
        sameElse: 'L'
    },
    relativeTime : {
        future : 'em %s',
        past : 'há %s',
        s : 'segundos',
        m : 'um minuto',
        mm : '%d minutos',
        h : 'uma hora',
        hh : '%d horas',
        d : 'um dia',
        dd : '%d dias',
        M : 'um mês',
        MM : '%d meses',
        y : 'um ano',
        yy : '%d anos'
    },
    dayOfMonthOrdinalParse: /\d{1,2}º/,
    ordinal : '%dº',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Romanian [ro]
//! author : Vlad Gurdiga : https://github.com/gurdiga
//! author : Valentin Agachi : https://github.com/avaly

function relativeTimeWithPlural$2(number, withoutSuffix, key) {
    var format = {
            'mm': 'minute',
            'hh': 'ore',
            'dd': 'zile',
            'MM': 'luni',
            'yy': 'ani'
        },
        separator = ' ';
    if (number % 100 >= 20 || (number >= 100 && number % 100 === 0)) {
        separator = ' de ';
    }
    return number + separator + format[key];
}

hooks.defineLocale('ro', {
    months : 'ianuarie_februarie_martie_aprilie_mai_iunie_iulie_august_septembrie_octombrie_noiembrie_decembrie'.split('_'),
    monthsShort : 'ian._febr._mart._apr._mai_iun._iul._aug._sept._oct._nov._dec.'.split('_'),
    monthsParseExact: true,
    weekdays : 'duminică_luni_marți_miercuri_joi_vineri_sâmbătă'.split('_'),
    weekdaysShort : 'Dum_Lun_Mar_Mie_Joi_Vin_Sâm'.split('_'),
    weekdaysMin : 'Du_Lu_Ma_Mi_Jo_Vi_Sâ'.split('_'),
    longDateFormat : {
        LT : 'H:mm',
        LTS : 'H:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY H:mm',
        LLLL : 'dddd, D MMMM YYYY H:mm'
    },
    calendar : {
        sameDay: '[azi la] LT',
        nextDay: '[mâine la] LT',
        nextWeek: 'dddd [la] LT',
        lastDay: '[ieri la] LT',
        lastWeek: '[fosta] dddd [la] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'peste %s',
        past : '%s în urmă',
        s : 'câteva secunde',
        m : 'un minut',
        mm : relativeTimeWithPlural$2,
        h : 'o oră',
        hh : relativeTimeWithPlural$2,
        d : 'o zi',
        dd : relativeTimeWithPlural$2,
        M : 'o lună',
        MM : relativeTimeWithPlural$2,
        y : 'un an',
        yy : relativeTimeWithPlural$2
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Russian [ru]
//! author : Viktorminator : https://github.com/Viktorminator
//! Author : Menelion Elensúle : https://github.com/Oire
//! author : Коренберг Марк : https://github.com/socketpair

function plural$4(word, num) {
    var forms = word.split('_');
    return num % 10 === 1 && num % 100 !== 11 ? forms[0] : (num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20) ? forms[1] : forms[2]);
}
function relativeTimeWithPlural$3(number, withoutSuffix, key) {
    var format = {
        'mm': withoutSuffix ? 'минута_минуты_минут' : 'минуту_минуты_минут',
        'hh': 'час_часа_часов',
        'dd': 'день_дня_дней',
        'MM': 'месяц_месяца_месяцев',
        'yy': 'год_года_лет'
    };
    if (key === 'm') {
        return withoutSuffix ? 'минута' : 'минуту';
    }
    else {
        return number + ' ' + plural$4(format[key], +number);
    }
}
var monthsParse$4 = [/^янв/i, /^фев/i, /^мар/i, /^апр/i, /^ма[йя]/i, /^июн/i, /^июл/i, /^авг/i, /^сен/i, /^окт/i, /^ноя/i, /^дек/i];

// http://new.gramota.ru/spravka/rules/139-prop : § 103
// Сокращения месяцев: http://new.gramota.ru/spravka/buro/search-answer?s=242637
// CLDR data:          http://www.unicode.org/cldr/charts/28/summary/ru.html#1753
hooks.defineLocale('ru', {
    months : {
        format: 'января_февраля_марта_апреля_мая_июня_июля_августа_сентября_октября_ноября_декабря'.split('_'),
        standalone: 'январь_февраль_март_апрель_май_июнь_июль_август_сентябрь_октябрь_ноябрь_декабрь'.split('_')
    },
    monthsShort : {
        // по CLDR именно "июл." и "июн.", но какой смысл менять букву на точку ?
        format: 'янв._февр._мар._апр._мая_июня_июля_авг._сент._окт._нояб._дек.'.split('_'),
        standalone: 'янв._февр._март_апр._май_июнь_июль_авг._сент._окт._нояб._дек.'.split('_')
    },
    weekdays : {
        standalone: 'воскресенье_понедельник_вторник_среда_четверг_пятница_суббота'.split('_'),
        format: 'воскресенье_понедельник_вторник_среду_четверг_пятницу_субботу'.split('_'),
        isFormat: /\[ ?[Вв] ?(?:прошлую|следующую|эту)? ?\] ?dddd/
    },
    weekdaysShort : 'вс_пн_вт_ср_чт_пт_сб'.split('_'),
    weekdaysMin : 'вс_пн_вт_ср_чт_пт_сб'.split('_'),
    monthsParse : monthsParse$4,
    longMonthsParse : monthsParse$4,
    shortMonthsParse : monthsParse$4,

    // полные названия с падежами, по три буквы, для некоторых, по 4 буквы, сокращения с точкой и без точки
    monthsRegex: /^(январ[ья]|янв\.?|феврал[ья]|февр?\.?|марта?|мар\.?|апрел[ья]|апр\.?|ма[йя]|июн[ья]|июн\.?|июл[ья]|июл\.?|августа?|авг\.?|сентябр[ья]|сент?\.?|октябр[ья]|окт\.?|ноябр[ья]|нояб?\.?|декабр[ья]|дек\.?)/i,

    // копия предыдущего
    monthsShortRegex: /^(январ[ья]|янв\.?|феврал[ья]|февр?\.?|марта?|мар\.?|апрел[ья]|апр\.?|ма[йя]|июн[ья]|июн\.?|июл[ья]|июл\.?|августа?|авг\.?|сентябр[ья]|сент?\.?|октябр[ья]|окт\.?|ноябр[ья]|нояб?\.?|декабр[ья]|дек\.?)/i,

    // полные названия с падежами
    monthsStrictRegex: /^(январ[яь]|феврал[яь]|марта?|апрел[яь]|ма[яй]|июн[яь]|июл[яь]|августа?|сентябр[яь]|октябр[яь]|ноябр[яь]|декабр[яь])/i,

    // Выражение, которое соотвествует только сокращённым формам
    monthsShortStrictRegex: /^(янв\.|февр?\.|мар[т.]|апр\.|ма[яй]|июн[ья.]|июл[ья.]|авг\.|сент?\.|окт\.|нояб?\.|дек\.)/i,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D MMMM YYYY г.',
        LLL : 'D MMMM YYYY г., HH:mm',
        LLLL : 'dddd, D MMMM YYYY г., HH:mm'
    },
    calendar : {
        sameDay: '[Сегодня в] LT',
        nextDay: '[Завтра в] LT',
        lastDay: '[Вчера в] LT',
        nextWeek: function (now) {
            if (now.week() !== this.week()) {
                switch (this.day()) {
                    case 0:
                        return '[В следующее] dddd [в] LT';
                    case 1:
                    case 2:
                    case 4:
                        return '[В следующий] dddd [в] LT';
                    case 3:
                    case 5:
                    case 6:
                        return '[В следующую] dddd [в] LT';
                }
            } else {
                if (this.day() === 2) {
                    return '[Во] dddd [в] LT';
                } else {
                    return '[В] dddd [в] LT';
                }
            }
        },
        lastWeek: function (now) {
            if (now.week() !== this.week()) {
                switch (this.day()) {
                    case 0:
                        return '[В прошлое] dddd [в] LT';
                    case 1:
                    case 2:
                    case 4:
                        return '[В прошлый] dddd [в] LT';
                    case 3:
                    case 5:
                    case 6:
                        return '[В прошлую] dddd [в] LT';
                }
            } else {
                if (this.day() === 2) {
                    return '[Во] dddd [в] LT';
                } else {
                    return '[В] dddd [в] LT';
                }
            }
        },
        sameElse: 'L'
    },
    relativeTime : {
        future : 'через %s',
        past : '%s назад',
        s : 'несколько секунд',
        m : relativeTimeWithPlural$3,
        mm : relativeTimeWithPlural$3,
        h : 'час',
        hh : relativeTimeWithPlural$3,
        d : 'день',
        dd : relativeTimeWithPlural$3,
        M : 'месяц',
        MM : relativeTimeWithPlural$3,
        y : 'год',
        yy : relativeTimeWithPlural$3
    },
    meridiemParse: /ночи|утра|дня|вечера/i,
    isPM : function (input) {
        return /^(дня|вечера)$/.test(input);
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 4) {
            return 'ночи';
        } else if (hour < 12) {
            return 'утра';
        } else if (hour < 17) {
            return 'дня';
        } else {
            return 'вечера';
        }
    },
    dayOfMonthOrdinalParse: /\d{1,2}-(й|го|я)/,
    ordinal: function (number, period) {
        switch (period) {
            case 'M':
            case 'd':
            case 'DDD':
                return number + '-й';
            case 'D':
                return number + '-го';
            case 'w':
            case 'W':
                return number + '-я';
            default:
                return number;
        }
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Sindhi [sd]
//! author : Narain Sagar : https://github.com/narainsagar

var months$6 = [
    'جنوري',
    'فيبروري',
    'مارچ',
    'اپريل',
    'مئي',
    'جون',
    'جولاءِ',
    'آگسٽ',
    'سيپٽمبر',
    'آڪٽوبر',
    'نومبر',
    'ڊسمبر'
];
var days$1 = [
    'آچر',
    'سومر',
    'اڱارو',
    'اربع',
    'خميس',
    'جمع',
    'ڇنڇر'
];

hooks.defineLocale('sd', {
    months : months$6,
    monthsShort : months$6,
    weekdays : days$1,
    weekdaysShort : days$1,
    weekdaysMin : days$1,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd، D MMMM YYYY HH:mm'
    },
    meridiemParse: /صبح|شام/,
    isPM : function (input) {
        return 'شام' === input;
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 12) {
            return 'صبح';
        }
        return 'شام';
    },
    calendar : {
        sameDay : '[اڄ] LT',
        nextDay : '[سڀاڻي] LT',
        nextWeek : 'dddd [اڳين هفتي تي] LT',
        lastDay : '[ڪالهه] LT',
        lastWeek : '[گزريل هفتي] dddd [تي] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s پوء',
        past : '%s اڳ',
        s : 'چند سيڪنڊ',
        m : 'هڪ منٽ',
        mm : '%d منٽ',
        h : 'هڪ ڪلاڪ',
        hh : '%d ڪلاڪ',
        d : 'هڪ ڏينهن',
        dd : '%d ڏينهن',
        M : 'هڪ مهينو',
        MM : '%d مهينا',
        y : 'هڪ سال',
        yy : '%d سال'
    },
    preparse: function (string) {
        return string.replace(/،/g, ',');
    },
    postformat: function (string) {
        return string.replace(/,/g, '،');
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Northern Sami [se]
//! authors : Bård Rolstad Henriksen : https://github.com/karamell


hooks.defineLocale('se', {
    months : 'ođđajagemánnu_guovvamánnu_njukčamánnu_cuoŋománnu_miessemánnu_geassemánnu_suoidnemánnu_borgemánnu_čakčamánnu_golggotmánnu_skábmamánnu_juovlamánnu'.split('_'),
    monthsShort : 'ođđj_guov_njuk_cuo_mies_geas_suoi_borg_čakč_golg_skáb_juov'.split('_'),
    weekdays : 'sotnabeaivi_vuossárga_maŋŋebárga_gaskavahkku_duorastat_bearjadat_lávvardat'.split('_'),
    weekdaysShort : 'sotn_vuos_maŋ_gask_duor_bear_láv'.split('_'),
    weekdaysMin : 's_v_m_g_d_b_L'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'MMMM D. [b.] YYYY',
        LLL : 'MMMM D. [b.] YYYY [ti.] HH:mm',
        LLLL : 'dddd, MMMM D. [b.] YYYY [ti.] HH:mm'
    },
    calendar : {
        sameDay: '[otne ti] LT',
        nextDay: '[ihttin ti] LT',
        nextWeek: 'dddd [ti] LT',
        lastDay: '[ikte ti] LT',
        lastWeek: '[ovddit] dddd [ti] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : '%s geažes',
        past : 'maŋit %s',
        s : 'moadde sekunddat',
        m : 'okta minuhta',
        mm : '%d minuhtat',
        h : 'okta diimmu',
        hh : '%d diimmut',
        d : 'okta beaivi',
        dd : '%d beaivvit',
        M : 'okta mánnu',
        MM : '%d mánut',
        y : 'okta jahki',
        yy : '%d jagit'
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Sinhalese [si]
//! author : Sampath Sitinamaluwa : https://github.com/sampathsris

/*jshint -W100*/
hooks.defineLocale('si', {
    months : 'ජනවාරි_පෙබරවාරි_මාර්තු_අප්‍රේල්_මැයි_ජූනි_ජූලි_අගෝස්තු_සැප්තැම්බර්_ඔක්තෝබර්_නොවැම්බර්_දෙසැම්බර්'.split('_'),
    monthsShort : 'ජන_පෙබ_මාර්_අප්_මැයි_ජූනි_ජූලි_අගෝ_සැප්_ඔක්_නොවැ_දෙසැ'.split('_'),
    weekdays : 'ඉරිදා_සඳුදා_අඟහරුවාදා_බදාදා_බ්‍රහස්පතින්දා_සිකුරාදා_සෙනසුරාදා'.split('_'),
    weekdaysShort : 'ඉරි_සඳු_අඟ_බදා_බ්‍රහ_සිකු_සෙන'.split('_'),
    weekdaysMin : 'ඉ_ස_අ_බ_බ්‍ර_සි_සෙ'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'a h:mm',
        LTS : 'a h:mm:ss',
        L : 'YYYY/MM/DD',
        LL : 'YYYY MMMM D',
        LLL : 'YYYY MMMM D, a h:mm',
        LLLL : 'YYYY MMMM D [වැනි] dddd, a h:mm:ss'
    },
    calendar : {
        sameDay : '[අද] LT[ට]',
        nextDay : '[හෙට] LT[ට]',
        nextWeek : 'dddd LT[ට]',
        lastDay : '[ඊයේ] LT[ට]',
        lastWeek : '[පසුගිය] dddd LT[ට]',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%sකින්',
        past : '%sකට පෙර',
        s : 'තත්පර කිහිපය',
        m : 'මිනිත්තුව',
        mm : 'මිනිත්තු %d',
        h : 'පැය',
        hh : 'පැය %d',
        d : 'දිනය',
        dd : 'දින %d',
        M : 'මාසය',
        MM : 'මාස %d',
        y : 'වසර',
        yy : 'වසර %d'
    },
    dayOfMonthOrdinalParse: /\d{1,2} වැනි/,
    ordinal : function (number) {
        return number + ' වැනි';
    },
    meridiemParse : /පෙර වරු|පස් වරු|පෙ.ව|ප.ව./,
    isPM : function (input) {
        return input === 'ප.ව.' || input === 'පස් වරු';
    },
    meridiem : function (hours, minutes, isLower) {
        if (hours > 11) {
            return isLower ? 'ප.ව.' : 'පස් වරු';
        } else {
            return isLower ? 'පෙ.ව.' : 'පෙර වරු';
        }
    }
});

//! moment.js locale configuration
//! locale : Slovak [sk]
//! author : Martin Minka : https://github.com/k2s
//! based on work of petrbela : https://github.com/petrbela

var months$7 = 'január_február_marec_apríl_máj_jún_júl_august_september_október_november_december'.split('_');
var monthsShort$5 = 'jan_feb_mar_apr_máj_jún_júl_aug_sep_okt_nov_dec'.split('_');
function plural$5(n) {
    return (n > 1) && (n < 5);
}
function translate$8(number, withoutSuffix, key, isFuture) {
    var result = number + ' ';
    switch (key) {
        case 's':  // a few seconds / in a few seconds / a few seconds ago
            return (withoutSuffix || isFuture) ? 'pár sekúnd' : 'pár sekundami';
        case 'm':  // a minute / in a minute / a minute ago
            return withoutSuffix ? 'minúta' : (isFuture ? 'minútu' : 'minútou');
        case 'mm': // 9 minutes / in 9 minutes / 9 minutes ago
            if (withoutSuffix || isFuture) {
                return result + (plural$5(number) ? 'minúty' : 'minút');
            } else {
                return result + 'minútami';
            }
            break;
        case 'h':  // an hour / in an hour / an hour ago
            return withoutSuffix ? 'hodina' : (isFuture ? 'hodinu' : 'hodinou');
        case 'hh': // 9 hours / in 9 hours / 9 hours ago
            if (withoutSuffix || isFuture) {
                return result + (plural$5(number) ? 'hodiny' : 'hodín');
            } else {
                return result + 'hodinami';
            }
            break;
        case 'd':  // a day / in a day / a day ago
            return (withoutSuffix || isFuture) ? 'deň' : 'dňom';
        case 'dd': // 9 days / in 9 days / 9 days ago
            if (withoutSuffix || isFuture) {
                return result + (plural$5(number) ? 'dni' : 'dní');
            } else {
                return result + 'dňami';
            }
            break;
        case 'M':  // a month / in a month / a month ago
            return (withoutSuffix || isFuture) ? 'mesiac' : 'mesiacom';
        case 'MM': // 9 months / in 9 months / 9 months ago
            if (withoutSuffix || isFuture) {
                return result + (plural$5(number) ? 'mesiace' : 'mesiacov');
            } else {
                return result + 'mesiacmi';
            }
            break;
        case 'y':  // a year / in a year / a year ago
            return (withoutSuffix || isFuture) ? 'rok' : 'rokom';
        case 'yy': // 9 years / in 9 years / 9 years ago
            if (withoutSuffix || isFuture) {
                return result + (plural$5(number) ? 'roky' : 'rokov');
            } else {
                return result + 'rokmi';
            }
            break;
    }
}

hooks.defineLocale('sk', {
    months : months$7,
    monthsShort : monthsShort$5,
    weekdays : 'nedeľa_pondelok_utorok_streda_štvrtok_piatok_sobota'.split('_'),
    weekdaysShort : 'ne_po_ut_st_št_pi_so'.split('_'),
    weekdaysMin : 'ne_po_ut_st_št_pi_so'.split('_'),
    longDateFormat : {
        LT: 'H:mm',
        LTS : 'H:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D. MMMM YYYY',
        LLL : 'D. MMMM YYYY H:mm',
        LLLL : 'dddd D. MMMM YYYY H:mm'
    },
    calendar : {
        sameDay: '[dnes o] LT',
        nextDay: '[zajtra o] LT',
        nextWeek: function () {
            switch (this.day()) {
                case 0:
                    return '[v nedeľu o] LT';
                case 1:
                case 2:
                    return '[v] dddd [o] LT';
                case 3:
                    return '[v stredu o] LT';
                case 4:
                    return '[vo štvrtok o] LT';
                case 5:
                    return '[v piatok o] LT';
                case 6:
                    return '[v sobotu o] LT';
            }
        },
        lastDay: '[včera o] LT',
        lastWeek: function () {
            switch (this.day()) {
                case 0:
                    return '[minulú nedeľu o] LT';
                case 1:
                case 2:
                    return '[minulý] dddd [o] LT';
                case 3:
                    return '[minulú stredu o] LT';
                case 4:
                case 5:
                    return '[minulý] dddd [o] LT';
                case 6:
                    return '[minulú sobotu o] LT';
            }
        },
        sameElse: 'L'
    },
    relativeTime : {
        future : 'za %s',
        past : 'pred %s',
        s : translate$8,
        m : translate$8,
        mm : translate$8,
        h : translate$8,
        hh : translate$8,
        d : translate$8,
        dd : translate$8,
        M : translate$8,
        MM : translate$8,
        y : translate$8,
        yy : translate$8
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Slovenian [sl]
//! author : Robert Sedovšek : https://github.com/sedovsek

function processRelativeTime$6(number, withoutSuffix, key, isFuture) {
    var result = number + ' ';
    switch (key) {
        case 's':
            return withoutSuffix || isFuture ? 'nekaj sekund' : 'nekaj sekundami';
        case 'm':
            return withoutSuffix ? 'ena minuta' : 'eno minuto';
        case 'mm':
            if (number === 1) {
                result += withoutSuffix ? 'minuta' : 'minuto';
            } else if (number === 2) {
                result += withoutSuffix || isFuture ? 'minuti' : 'minutama';
            } else if (number < 5) {
                result += withoutSuffix || isFuture ? 'minute' : 'minutami';
            } else {
                result += withoutSuffix || isFuture ? 'minut' : 'minutami';
            }
            return result;
        case 'h':
            return withoutSuffix ? 'ena ura' : 'eno uro';
        case 'hh':
            if (number === 1) {
                result += withoutSuffix ? 'ura' : 'uro';
            } else if (number === 2) {
                result += withoutSuffix || isFuture ? 'uri' : 'urama';
            } else if (number < 5) {
                result += withoutSuffix || isFuture ? 'ure' : 'urami';
            } else {
                result += withoutSuffix || isFuture ? 'ur' : 'urami';
            }
            return result;
        case 'd':
            return withoutSuffix || isFuture ? 'en dan' : 'enim dnem';
        case 'dd':
            if (number === 1) {
                result += withoutSuffix || isFuture ? 'dan' : 'dnem';
            } else if (number === 2) {
                result += withoutSuffix || isFuture ? 'dni' : 'dnevoma';
            } else {
                result += withoutSuffix || isFuture ? 'dni' : 'dnevi';
            }
            return result;
        case 'M':
            return withoutSuffix || isFuture ? 'en mesec' : 'enim mesecem';
        case 'MM':
            if (number === 1) {
                result += withoutSuffix || isFuture ? 'mesec' : 'mesecem';
            } else if (number === 2) {
                result += withoutSuffix || isFuture ? 'meseca' : 'mesecema';
            } else if (number < 5) {
                result += withoutSuffix || isFuture ? 'mesece' : 'meseci';
            } else {
                result += withoutSuffix || isFuture ? 'mesecev' : 'meseci';
            }
            return result;
        case 'y':
            return withoutSuffix || isFuture ? 'eno leto' : 'enim letom';
        case 'yy':
            if (number === 1) {
                result += withoutSuffix || isFuture ? 'leto' : 'letom';
            } else if (number === 2) {
                result += withoutSuffix || isFuture ? 'leti' : 'letoma';
            } else if (number < 5) {
                result += withoutSuffix || isFuture ? 'leta' : 'leti';
            } else {
                result += withoutSuffix || isFuture ? 'let' : 'leti';
            }
            return result;
    }
}

hooks.defineLocale('sl', {
    months : 'januar_februar_marec_april_maj_junij_julij_avgust_september_oktober_november_december'.split('_'),
    monthsShort : 'jan._feb._mar._apr._maj._jun._jul._avg._sep._okt._nov._dec.'.split('_'),
    monthsParseExact: true,
    weekdays : 'nedelja_ponedeljek_torek_sreda_četrtek_petek_sobota'.split('_'),
    weekdaysShort : 'ned._pon._tor._sre._čet._pet._sob.'.split('_'),
    weekdaysMin : 'ne_po_to_sr_če_pe_so'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'H:mm',
        LTS : 'H:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D. MMMM YYYY',
        LLL : 'D. MMMM YYYY H:mm',
        LLLL : 'dddd, D. MMMM YYYY H:mm'
    },
    calendar : {
        sameDay  : '[danes ob] LT',
        nextDay  : '[jutri ob] LT',

        nextWeek : function () {
            switch (this.day()) {
                case 0:
                    return '[v] [nedeljo] [ob] LT';
                case 3:
                    return '[v] [sredo] [ob] LT';
                case 6:
                    return '[v] [soboto] [ob] LT';
                case 1:
                case 2:
                case 4:
                case 5:
                    return '[v] dddd [ob] LT';
            }
        },
        lastDay  : '[včeraj ob] LT',
        lastWeek : function () {
            switch (this.day()) {
                case 0:
                    return '[prejšnjo] [nedeljo] [ob] LT';
                case 3:
                    return '[prejšnjo] [sredo] [ob] LT';
                case 6:
                    return '[prejšnjo] [soboto] [ob] LT';
                case 1:
                case 2:
                case 4:
                case 5:
                    return '[prejšnji] dddd [ob] LT';
            }
        },
        sameElse : 'L'
    },
    relativeTime : {
        future : 'čez %s',
        past   : 'pred %s',
        s      : processRelativeTime$6,
        m      : processRelativeTime$6,
        mm     : processRelativeTime$6,
        h      : processRelativeTime$6,
        hh     : processRelativeTime$6,
        d      : processRelativeTime$6,
        dd     : processRelativeTime$6,
        M      : processRelativeTime$6,
        MM     : processRelativeTime$6,
        y      : processRelativeTime$6,
        yy     : processRelativeTime$6
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Albanian [sq]
//! author : Flakërim Ismani : https://github.com/flakerimi
//! author : Menelion Elensúle : https://github.com/Oire
//! author : Oerd Cukalla : https://github.com/oerd

hooks.defineLocale('sq', {
    months : 'Janar_Shkurt_Mars_Prill_Maj_Qershor_Korrik_Gusht_Shtator_Tetor_Nëntor_Dhjetor'.split('_'),
    monthsShort : 'Jan_Shk_Mar_Pri_Maj_Qer_Kor_Gus_Sht_Tet_Nën_Dhj'.split('_'),
    weekdays : 'E Diel_E Hënë_E Martë_E Mërkurë_E Enjte_E Premte_E Shtunë'.split('_'),
    weekdaysShort : 'Die_Hën_Mar_Mër_Enj_Pre_Sht'.split('_'),
    weekdaysMin : 'D_H_Ma_Më_E_P_Sh'.split('_'),
    weekdaysParseExact : true,
    meridiemParse: /PD|MD/,
    isPM: function (input) {
        return input.charAt(0) === 'M';
    },
    meridiem : function (hours, minutes, isLower) {
        return hours < 12 ? 'PD' : 'MD';
    },
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[Sot në] LT',
        nextDay : '[Nesër në] LT',
        nextWeek : 'dddd [në] LT',
        lastDay : '[Dje në] LT',
        lastWeek : 'dddd [e kaluar në] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'në %s',
        past : '%s më parë',
        s : 'disa sekonda',
        m : 'një minutë',
        mm : '%d minuta',
        h : 'një orë',
        hh : '%d orë',
        d : 'një ditë',
        dd : '%d ditë',
        M : 'një muaj',
        MM : '%d muaj',
        y : 'një vit',
        yy : '%d vite'
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Serbian Cyrillic [sr-cyrl]
//! author : Milan Janačković<milanjanackovic@gmail.com> : https://github.com/milan-j

var translator$1 = {
    words: { //Different grammatical cases
        m: ['један минут', 'једне минуте'],
        mm: ['минут', 'минуте', 'минута'],
        h: ['један сат', 'једног сата'],
        hh: ['сат', 'сата', 'сати'],
        dd: ['дан', 'дана', 'дана'],
        MM: ['месец', 'месеца', 'месеци'],
        yy: ['година', 'године', 'година']
    },
    correctGrammaticalCase: function (number, wordKey) {
        return number === 1 ? wordKey[0] : (number >= 2 && number <= 4 ? wordKey[1] : wordKey[2]);
    },
    translate: function (number, withoutSuffix, key) {
        var wordKey = translator$1.words[key];
        if (key.length === 1) {
            return withoutSuffix ? wordKey[0] : wordKey[1];
        } else {
            return number + ' ' + translator$1.correctGrammaticalCase(number, wordKey);
        }
    }
};

hooks.defineLocale('sr-cyrl', {
    months: 'јануар_фебруар_март_април_мај_јун_јул_август_септембар_октобар_новембар_децембар'.split('_'),
    monthsShort: 'јан._феб._мар._апр._мај_јун_јул_авг._сеп._окт._нов._дец.'.split('_'),
    monthsParseExact: true,
    weekdays: 'недеља_понедељак_уторак_среда_четвртак_петак_субота'.split('_'),
    weekdaysShort: 'нед._пон._уто._сре._чет._пет._суб.'.split('_'),
    weekdaysMin: 'не_по_ут_ср_че_пе_су'.split('_'),
    weekdaysParseExact : true,
    longDateFormat: {
        LT: 'H:mm',
        LTS : 'H:mm:ss',
        L: 'DD.MM.YYYY',
        LL: 'D. MMMM YYYY',
        LLL: 'D. MMMM YYYY H:mm',
        LLLL: 'dddd, D. MMMM YYYY H:mm'
    },
    calendar: {
        sameDay: '[данас у] LT',
        nextDay: '[сутра у] LT',
        nextWeek: function () {
            switch (this.day()) {
                case 0:
                    return '[у] [недељу] [у] LT';
                case 3:
                    return '[у] [среду] [у] LT';
                case 6:
                    return '[у] [суботу] [у] LT';
                case 1:
                case 2:
                case 4:
                case 5:
                    return '[у] dddd [у] LT';
            }
        },
        lastDay  : '[јуче у] LT',
        lastWeek : function () {
            var lastWeekDays = [
                '[прошле] [недеље] [у] LT',
                '[прошлог] [понедељка] [у] LT',
                '[прошлог] [уторка] [у] LT',
                '[прошле] [среде] [у] LT',
                '[прошлог] [четвртка] [у] LT',
                '[прошлог] [петка] [у] LT',
                '[прошле] [суботе] [у] LT'
            ];
            return lastWeekDays[this.day()];
        },
        sameElse : 'L'
    },
    relativeTime : {
        future : 'за %s',
        past   : 'пре %s',
        s      : 'неколико секунди',
        m      : translator$1.translate,
        mm     : translator$1.translate,
        h      : translator$1.translate,
        hh     : translator$1.translate,
        d      : 'дан',
        dd     : translator$1.translate,
        M      : 'месец',
        MM     : translator$1.translate,
        y      : 'годину',
        yy     : translator$1.translate
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Serbian [sr]
//! author : Milan Janačković<milanjanackovic@gmail.com> : https://github.com/milan-j

var translator$2 = {
    words: { //Different grammatical cases
        m: ['jedan minut', 'jedne minute'],
        mm: ['minut', 'minute', 'minuta'],
        h: ['jedan sat', 'jednog sata'],
        hh: ['sat', 'sata', 'sati'],
        dd: ['dan', 'dana', 'dana'],
        MM: ['mesec', 'meseca', 'meseci'],
        yy: ['godina', 'godine', 'godina']
    },
    correctGrammaticalCase: function (number, wordKey) {
        return number === 1 ? wordKey[0] : (number >= 2 && number <= 4 ? wordKey[1] : wordKey[2]);
    },
    translate: function (number, withoutSuffix, key) {
        var wordKey = translator$2.words[key];
        if (key.length === 1) {
            return withoutSuffix ? wordKey[0] : wordKey[1];
        } else {
            return number + ' ' + translator$2.correctGrammaticalCase(number, wordKey);
        }
    }
};

hooks.defineLocale('sr', {
    months: 'januar_februar_mart_april_maj_jun_jul_avgust_septembar_oktobar_novembar_decembar'.split('_'),
    monthsShort: 'jan._feb._mar._apr._maj_jun_jul_avg._sep._okt._nov._dec.'.split('_'),
    monthsParseExact: true,
    weekdays: 'nedelja_ponedeljak_utorak_sreda_četvrtak_petak_subota'.split('_'),
    weekdaysShort: 'ned._pon._uto._sre._čet._pet._sub.'.split('_'),
    weekdaysMin: 'ne_po_ut_sr_če_pe_su'.split('_'),
    weekdaysParseExact : true,
    longDateFormat: {
        LT: 'H:mm',
        LTS : 'H:mm:ss',
        L: 'DD.MM.YYYY',
        LL: 'D. MMMM YYYY',
        LLL: 'D. MMMM YYYY H:mm',
        LLLL: 'dddd, D. MMMM YYYY H:mm'
    },
    calendar: {
        sameDay: '[danas u] LT',
        nextDay: '[sutra u] LT',
        nextWeek: function () {
            switch (this.day()) {
                case 0:
                    return '[u] [nedelju] [u] LT';
                case 3:
                    return '[u] [sredu] [u] LT';
                case 6:
                    return '[u] [subotu] [u] LT';
                case 1:
                case 2:
                case 4:
                case 5:
                    return '[u] dddd [u] LT';
            }
        },
        lastDay  : '[juče u] LT',
        lastWeek : function () {
            var lastWeekDays = [
                '[prošle] [nedelje] [u] LT',
                '[prošlog] [ponedeljka] [u] LT',
                '[prošlog] [utorka] [u] LT',
                '[prošle] [srede] [u] LT',
                '[prošlog] [četvrtka] [u] LT',
                '[prošlog] [petka] [u] LT',
                '[prošle] [subote] [u] LT'
            ];
            return lastWeekDays[this.day()];
        },
        sameElse : 'L'
    },
    relativeTime : {
        future : 'za %s',
        past   : 'pre %s',
        s      : 'nekoliko sekundi',
        m      : translator$2.translate,
        mm     : translator$2.translate,
        h      : translator$2.translate,
        hh     : translator$2.translate,
        d      : 'dan',
        dd     : translator$2.translate,
        M      : 'mesec',
        MM     : translator$2.translate,
        y      : 'godinu',
        yy     : translator$2.translate
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : siSwati [ss]
//! author : Nicolai Davies<mail@nicolai.io> : https://github.com/nicolaidavies


hooks.defineLocale('ss', {
    months : "Bhimbidvwane_Indlovana_Indlov'lenkhulu_Mabasa_Inkhwekhweti_Inhlaba_Kholwane_Ingci_Inyoni_Imphala_Lweti_Ingongoni".split('_'),
    monthsShort : 'Bhi_Ina_Inu_Mab_Ink_Inh_Kho_Igc_Iny_Imp_Lwe_Igo'.split('_'),
    weekdays : 'Lisontfo_Umsombuluko_Lesibili_Lesitsatfu_Lesine_Lesihlanu_Umgcibelo'.split('_'),
    weekdaysShort : 'Lis_Umb_Lsb_Les_Lsi_Lsh_Umg'.split('_'),
    weekdaysMin : 'Li_Us_Lb_Lt_Ls_Lh_Ug'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'h:mm A',
        LTS : 'h:mm:ss A',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY h:mm A',
        LLLL : 'dddd, D MMMM YYYY h:mm A'
    },
    calendar : {
        sameDay : '[Namuhla nga] LT',
        nextDay : '[Kusasa nga] LT',
        nextWeek : 'dddd [nga] LT',
        lastDay : '[Itolo nga] LT',
        lastWeek : 'dddd [leliphelile] [nga] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'nga %s',
        past : 'wenteka nga %s',
        s : 'emizuzwana lomcane',
        m : 'umzuzu',
        mm : '%d emizuzu',
        h : 'lihora',
        hh : '%d emahora',
        d : 'lilanga',
        dd : '%d emalanga',
        M : 'inyanga',
        MM : '%d tinyanga',
        y : 'umnyaka',
        yy : '%d iminyaka'
    },
    meridiemParse: /ekuseni|emini|entsambama|ebusuku/,
    meridiem : function (hours, minutes, isLower) {
        if (hours < 11) {
            return 'ekuseni';
        } else if (hours < 15) {
            return 'emini';
        } else if (hours < 19) {
            return 'entsambama';
        } else {
            return 'ebusuku';
        }
    },
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === 'ekuseni') {
            return hour;
        } else if (meridiem === 'emini') {
            return hour >= 11 ? hour : hour + 12;
        } else if (meridiem === 'entsambama' || meridiem === 'ebusuku') {
            if (hour === 0) {
                return 0;
            }
            return hour + 12;
        }
    },
    dayOfMonthOrdinalParse: /\d{1,2}/,
    ordinal : '%d',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Swedish [sv]
//! author : Jens Alm : https://github.com/ulmus

hooks.defineLocale('sv', {
    months : 'januari_februari_mars_april_maj_juni_juli_augusti_september_oktober_november_december'.split('_'),
    monthsShort : 'jan_feb_mar_apr_maj_jun_jul_aug_sep_okt_nov_dec'.split('_'),
    weekdays : 'söndag_måndag_tisdag_onsdag_torsdag_fredag_lördag'.split('_'),
    weekdaysShort : 'sön_mån_tis_ons_tor_fre_lör'.split('_'),
    weekdaysMin : 'sö_må_ti_on_to_fr_lö'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'YYYY-MM-DD',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY [kl.] HH:mm',
        LLLL : 'dddd D MMMM YYYY [kl.] HH:mm',
        lll : 'D MMM YYYY HH:mm',
        llll : 'ddd D MMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[Idag] LT',
        nextDay: '[Imorgon] LT',
        lastDay: '[Igår] LT',
        nextWeek: '[På] dddd LT',
        lastWeek: '[I] dddd[s] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'om %s',
        past : 'för %s sedan',
        s : 'några sekunder',
        m : 'en minut',
        mm : '%d minuter',
        h : 'en timme',
        hh : '%d timmar',
        d : 'en dag',
        dd : '%d dagar',
        M : 'en månad',
        MM : '%d månader',
        y : 'ett år',
        yy : '%d år'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(e|a)/,
    ordinal : function (number) {
        var b = number % 10,
            output = (~~(number % 100 / 10) === 1) ? 'e' :
            (b === 1) ? 'a' :
            (b === 2) ? 'a' :
            (b === 3) ? 'e' : 'e';
        return number + output;
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Swahili [sw]
//! author : Fahad Kassim : https://github.com/fadsel

hooks.defineLocale('sw', {
    months : 'Januari_Februari_Machi_Aprili_Mei_Juni_Julai_Agosti_Septemba_Oktoba_Novemba_Desemba'.split('_'),
    monthsShort : 'Jan_Feb_Mac_Apr_Mei_Jun_Jul_Ago_Sep_Okt_Nov_Des'.split('_'),
    weekdays : 'Jumapili_Jumatatu_Jumanne_Jumatano_Alhamisi_Ijumaa_Jumamosi'.split('_'),
    weekdaysShort : 'Jpl_Jtat_Jnne_Jtan_Alh_Ijm_Jmos'.split('_'),
    weekdaysMin : 'J2_J3_J4_J5_Al_Ij_J1'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[leo saa] LT',
        nextDay : '[kesho saa] LT',
        nextWeek : '[wiki ijayo] dddd [saat] LT',
        lastDay : '[jana] LT',
        lastWeek : '[wiki iliyopita] dddd [saat] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s baadaye',
        past : 'tokea %s',
        s : 'hivi punde',
        m : 'dakika moja',
        mm : 'dakika %d',
        h : 'saa limoja',
        hh : 'masaa %d',
        d : 'siku moja',
        dd : 'masiku %d',
        M : 'mwezi mmoja',
        MM : 'miezi %d',
        y : 'mwaka mmoja',
        yy : 'miaka %d'
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Tamil [ta]
//! author : Arjunkumar Krishnamoorthy : https://github.com/tk120404

var symbolMap$13 = {
    '1': '௧',
    '2': '௨',
    '3': '௩',
    '4': '௪',
    '5': '௫',
    '6': '௬',
    '7': '௭',
    '8': '௮',
    '9': '௯',
    '0': '௦'
};
var numberMap$12 = {
    '௧': '1',
    '௨': '2',
    '௩': '3',
    '௪': '4',
    '௫': '5',
    '௬': '6',
    '௭': '7',
    '௮': '8',
    '௯': '9',
    '௦': '0'
};

hooks.defineLocale('ta', {
    months : 'ஜனவரி_பிப்ரவரி_மார்ச்_ஏப்ரல்_மே_ஜூன்_ஜூலை_ஆகஸ்ட்_செப்டெம்பர்_அக்டோபர்_நவம்பர்_டிசம்பர்'.split('_'),
    monthsShort : 'ஜனவரி_பிப்ரவரி_மார்ச்_ஏப்ரல்_மே_ஜூன்_ஜூலை_ஆகஸ்ட்_செப்டெம்பர்_அக்டோபர்_நவம்பர்_டிசம்பர்'.split('_'),
    weekdays : 'ஞாயிற்றுக்கிழமை_திங்கட்கிழமை_செவ்வாய்கிழமை_புதன்கிழமை_வியாழக்கிழமை_வெள்ளிக்கிழமை_சனிக்கிழமை'.split('_'),
    weekdaysShort : 'ஞாயிறு_திங்கள்_செவ்வாய்_புதன்_வியாழன்_வெள்ளி_சனி'.split('_'),
    weekdaysMin : 'ஞா_தி_செ_பு_வி_வெ_ச'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY, HH:mm',
        LLLL : 'dddd, D MMMM YYYY, HH:mm'
    },
    calendar : {
        sameDay : '[இன்று] LT',
        nextDay : '[நாளை] LT',
        nextWeek : 'dddd, LT',
        lastDay : '[நேற்று] LT',
        lastWeek : '[கடந்த வாரம்] dddd, LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s இல்',
        past : '%s முன்',
        s : 'ஒரு சில விநாடிகள்',
        m : 'ஒரு நிமிடம்',
        mm : '%d நிமிடங்கள்',
        h : 'ஒரு மணி நேரம்',
        hh : '%d மணி நேரம்',
        d : 'ஒரு நாள்',
        dd : '%d நாட்கள்',
        M : 'ஒரு மாதம்',
        MM : '%d மாதங்கள்',
        y : 'ஒரு வருடம்',
        yy : '%d ஆண்டுகள்'
    },
    dayOfMonthOrdinalParse: /\d{1,2}வது/,
    ordinal : function (number) {
        return number + 'வது';
    },
    preparse: function (string) {
        return string.replace(/[௧௨௩௪௫௬௭௮௯௦]/g, function (match) {
            return numberMap$12[match];
        });
    },
    postformat: function (string) {
        return string.replace(/\d/g, function (match) {
            return symbolMap$13[match];
        });
    },
    // refer http://ta.wikipedia.org/s/1er1
    meridiemParse: /யாமம்|வைகறை|காலை|நண்பகல்|எற்பாடு|மாலை/,
    meridiem : function (hour, minute, isLower) {
        if (hour < 2) {
            return ' யாமம்';
        } else if (hour < 6) {
            return ' வைகறை';  // வைகறை
        } else if (hour < 10) {
            return ' காலை'; // காலை
        } else if (hour < 14) {
            return ' நண்பகல்'; // நண்பகல்
        } else if (hour < 18) {
            return ' எற்பாடு'; // எற்பாடு
        } else if (hour < 22) {
            return ' மாலை'; // மாலை
        } else {
            return ' யாமம்';
        }
    },
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === 'யாமம்') {
            return hour < 2 ? hour : hour + 12;
        } else if (meridiem === 'வைகறை' || meridiem === 'காலை') {
            return hour;
        } else if (meridiem === 'நண்பகல்') {
            return hour >= 10 ? hour : hour + 12;
        } else {
            return hour + 12;
        }
    },
    week : {
        dow : 0, // Sunday is the first day of the week.
        doy : 6  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Telugu [te]
//! author : Krishna Chaitanya Thota : https://github.com/kcthota

hooks.defineLocale('te', {
    months : 'జనవరి_ఫిబ్రవరి_మార్చి_ఏప్రిల్_మే_జూన్_జూలై_ఆగస్టు_సెప్టెంబర్_అక్టోబర్_నవంబర్_డిసెంబర్'.split('_'),
    monthsShort : 'జన._ఫిబ్ర._మార్చి_ఏప్రి._మే_జూన్_జూలై_ఆగ._సెప్._అక్టో._నవ._డిసె.'.split('_'),
    monthsParseExact : true,
    weekdays : 'ఆదివారం_సోమవారం_మంగళవారం_బుధవారం_గురువారం_శుక్రవారం_శనివారం'.split('_'),
    weekdaysShort : 'ఆది_సోమ_మంగళ_బుధ_గురు_శుక్ర_శని'.split('_'),
    weekdaysMin : 'ఆ_సో_మం_బు_గు_శు_శ'.split('_'),
    longDateFormat : {
        LT : 'A h:mm',
        LTS : 'A h:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY, A h:mm',
        LLLL : 'dddd, D MMMM YYYY, A h:mm'
    },
    calendar : {
        sameDay : '[నేడు] LT',
        nextDay : '[రేపు] LT',
        nextWeek : 'dddd, LT',
        lastDay : '[నిన్న] LT',
        lastWeek : '[గత] dddd, LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s లో',
        past : '%s క్రితం',
        s : 'కొన్ని క్షణాలు',
        m : 'ఒక నిమిషం',
        mm : '%d నిమిషాలు',
        h : 'ఒక గంట',
        hh : '%d గంటలు',
        d : 'ఒక రోజు',
        dd : '%d రోజులు',
        M : 'ఒక నెల',
        MM : '%d నెలలు',
        y : 'ఒక సంవత్సరం',
        yy : '%d సంవత్సరాలు'
    },
    dayOfMonthOrdinalParse : /\d{1,2}వ/,
    ordinal : '%dవ',
    meridiemParse: /రాత్రి|ఉదయం|మధ్యాహ్నం|సాయంత్రం/,
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === 'రాత్రి') {
            return hour < 4 ? hour : hour + 12;
        } else if (meridiem === 'ఉదయం') {
            return hour;
        } else if (meridiem === 'మధ్యాహ్నం') {
            return hour >= 10 ? hour : hour + 12;
        } else if (meridiem === 'సాయంత్రం') {
            return hour + 12;
        }
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 4) {
            return 'రాత్రి';
        } else if (hour < 10) {
            return 'ఉదయం';
        } else if (hour < 17) {
            return 'మధ్యాహ్నం';
        } else if (hour < 20) {
            return 'సాయంత్రం';
        } else {
            return 'రాత్రి';
        }
    },
    week : {
        dow : 0, // Sunday is the first day of the week.
        doy : 6  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Tetun Dili (East Timor) [tet]
//! author : Joshua Brooks : https://github.com/joshbrooks
//! author : Onorio De J. Afonso : https://github.com/marobo

hooks.defineLocale('tet', {
    months : 'Janeiru_Fevereiru_Marsu_Abril_Maiu_Juniu_Juliu_Augustu_Setembru_Outubru_Novembru_Dezembru'.split('_'),
    monthsShort : 'Jan_Fev_Mar_Abr_Mai_Jun_Jul_Aug_Set_Out_Nov_Dez'.split('_'),
    weekdays : 'Domingu_Segunda_Tersa_Kuarta_Kinta_Sexta_Sabadu'.split('_'),
    weekdaysShort : 'Dom_Seg_Ters_Kua_Kint_Sext_Sab'.split('_'),
    weekdaysMin : 'Do_Seg_Te_Ku_Ki_Sex_Sa'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[Ohin iha] LT',
        nextDay: '[Aban iha] LT',
        nextWeek: 'dddd [iha] LT',
        lastDay: '[Horiseik iha] LT',
        lastWeek: 'dddd [semana kotuk] [iha] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'iha %s',
        past : '%s liuba',
        s : 'minutu balun',
        m : 'minutu ida',
        mm : 'minutus %d',
        h : 'horas ida',
        hh : 'horas %d',
        d : 'loron ida',
        dd : 'loron %d',
        M : 'fulan ida',
        MM : 'fulan %d',
        y : 'tinan ida',
        yy : 'tinan %d'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(st|nd|rd|th)/,
    ordinal : function (number) {
        var b = number % 10,
            output = (~~(number % 100 / 10) === 1) ? 'th' :
            (b === 1) ? 'st' :
            (b === 2) ? 'nd' :
            (b === 3) ? 'rd' : 'th';
        return number + output;
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Thai [th]
//! author : Kridsada Thanabulpong : https://github.com/sirn

hooks.defineLocale('th', {
    months : 'มกราคม_กุมภาพันธ์_มีนาคม_เมษายน_พฤษภาคม_มิถุนายน_กรกฎาคม_สิงหาคม_กันยายน_ตุลาคม_พฤศจิกายน_ธันวาคม'.split('_'),
    monthsShort : 'ม.ค._ก.พ._มี.ค._เม.ย._พ.ค._มิ.ย._ก.ค._ส.ค._ก.ย._ต.ค._พ.ย._ธ.ค.'.split('_'),
    monthsParseExact: true,
    weekdays : 'อาทิตย์_จันทร์_อังคาร_พุธ_พฤหัสบดี_ศุกร์_เสาร์'.split('_'),
    weekdaysShort : 'อาทิตย์_จันทร์_อังคาร_พุธ_พฤหัส_ศุกร์_เสาร์'.split('_'), // yes, three characters difference
    weekdaysMin : 'อา._จ._อ._พ._พฤ._ศ._ส.'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'H:mm',
        LTS : 'H:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY เวลา H:mm',
        LLLL : 'วันddddที่ D MMMM YYYY เวลา H:mm'
    },
    meridiemParse: /ก่อนเที่ยง|หลังเที่ยง/,
    isPM: function (input) {
        return input === 'หลังเที่ยง';
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 12) {
            return 'ก่อนเที่ยง';
        } else {
            return 'หลังเที่ยง';
        }
    },
    calendar : {
        sameDay : '[วันนี้ เวลา] LT',
        nextDay : '[พรุ่งนี้ เวลา] LT',
        nextWeek : 'dddd[หน้า เวลา] LT',
        lastDay : '[เมื่อวานนี้ เวลา] LT',
        lastWeek : '[วัน]dddd[ที่แล้ว เวลา] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'อีก %s',
        past : '%sที่แล้ว',
        s : 'ไม่กี่วินาที',
        m : '1 นาที',
        mm : '%d นาที',
        h : '1 ชั่วโมง',
        hh : '%d ชั่วโมง',
        d : '1 วัน',
        dd : '%d วัน',
        M : '1 เดือน',
        MM : '%d เดือน',
        y : '1 ปี',
        yy : '%d ปี'
    }
});

//! moment.js locale configuration
//! locale : Tagalog (Philippines) [tl-ph]
//! author : Dan Hagman : https://github.com/hagmandan

hooks.defineLocale('tl-ph', {
    months : 'Enero_Pebrero_Marso_Abril_Mayo_Hunyo_Hulyo_Agosto_Setyembre_Oktubre_Nobyembre_Disyembre'.split('_'),
    monthsShort : 'Ene_Peb_Mar_Abr_May_Hun_Hul_Ago_Set_Okt_Nob_Dis'.split('_'),
    weekdays : 'Linggo_Lunes_Martes_Miyerkules_Huwebes_Biyernes_Sabado'.split('_'),
    weekdaysShort : 'Lin_Lun_Mar_Miy_Huw_Biy_Sab'.split('_'),
    weekdaysMin : 'Li_Lu_Ma_Mi_Hu_Bi_Sab'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'MM/D/YYYY',
        LL : 'MMMM D, YYYY',
        LLL : 'MMMM D, YYYY HH:mm',
        LLLL : 'dddd, MMMM DD, YYYY HH:mm'
    },
    calendar : {
        sameDay: 'LT [ngayong araw]',
        nextDay: '[Bukas ng] LT',
        nextWeek: 'LT [sa susunod na] dddd',
        lastDay: 'LT [kahapon]',
        lastWeek: 'LT [noong nakaraang] dddd',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'sa loob ng %s',
        past : '%s ang nakalipas',
        s : 'ilang segundo',
        m : 'isang minuto',
        mm : '%d minuto',
        h : 'isang oras',
        hh : '%d oras',
        d : 'isang araw',
        dd : '%d araw',
        M : 'isang buwan',
        MM : '%d buwan',
        y : 'isang taon',
        yy : '%d taon'
    },
    dayOfMonthOrdinalParse: /\d{1,2}/,
    ordinal : function (number) {
        return number;
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Klingon [tlh]
//! author : Dominika Kruk : https://github.com/amaranthrose

var numbersNouns = 'pagh_wa’_cha’_wej_loS_vagh_jav_Soch_chorgh_Hut'.split('_');

function translateFuture(output) {
    var time = output;
    time = (output.indexOf('jaj') !== -1) ?
    time.slice(0, -3) + 'leS' :
    (output.indexOf('jar') !== -1) ?
    time.slice(0, -3) + 'waQ' :
    (output.indexOf('DIS') !== -1) ?
    time.slice(0, -3) + 'nem' :
    time + ' pIq';
    return time;
}

function translatePast(output) {
    var time = output;
    time = (output.indexOf('jaj') !== -1) ?
    time.slice(0, -3) + 'Hu’' :
    (output.indexOf('jar') !== -1) ?
    time.slice(0, -3) + 'wen' :
    (output.indexOf('DIS') !== -1) ?
    time.slice(0, -3) + 'ben' :
    time + ' ret';
    return time;
}

function translate$9(number, withoutSuffix, string, isFuture) {
    var numberNoun = numberAsNoun(number);
    switch (string) {
        case 'mm':
            return numberNoun + ' tup';
        case 'hh':
            return numberNoun + ' rep';
        case 'dd':
            return numberNoun + ' jaj';
        case 'MM':
            return numberNoun + ' jar';
        case 'yy':
            return numberNoun + ' DIS';
    }
}

function numberAsNoun(number) {
    var hundred = Math.floor((number % 1000) / 100),
    ten = Math.floor((number % 100) / 10),
    one = number % 10,
    word = '';
    if (hundred > 0) {
        word += numbersNouns[hundred] + 'vatlh';
    }
    if (ten > 0) {
        word += ((word !== '') ? ' ' : '') + numbersNouns[ten] + 'maH';
    }
    if (one > 0) {
        word += ((word !== '') ? ' ' : '') + numbersNouns[one];
    }
    return (word === '') ? 'pagh' : word;
}

hooks.defineLocale('tlh', {
    months : 'tera’ jar wa’_tera’ jar cha’_tera’ jar wej_tera’ jar loS_tera’ jar vagh_tera’ jar jav_tera’ jar Soch_tera’ jar chorgh_tera’ jar Hut_tera’ jar wa’maH_tera’ jar wa’maH wa’_tera’ jar wa’maH cha’'.split('_'),
    monthsShort : 'jar wa’_jar cha’_jar wej_jar loS_jar vagh_jar jav_jar Soch_jar chorgh_jar Hut_jar wa’maH_jar wa’maH wa’_jar wa’maH cha’'.split('_'),
    monthsParseExact : true,
    weekdays : 'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split('_'),
    weekdaysShort : 'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split('_'),
    weekdaysMin : 'lojmItjaj_DaSjaj_povjaj_ghItlhjaj_loghjaj_buqjaj_ghInjaj'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[DaHjaj] LT',
        nextDay: '[wa’leS] LT',
        nextWeek: 'LLL',
        lastDay: '[wa’Hu’] LT',
        lastWeek: 'LLL',
        sameElse: 'L'
    },
    relativeTime : {
        future : translateFuture,
        past : translatePast,
        s : 'puS lup',
        m : 'wa’ tup',
        mm : translate$9,
        h : 'wa’ rep',
        hh : translate$9,
        d : 'wa’ jaj',
        dd : translate$9,
        M : 'wa’ jar',
        MM : translate$9,
        y : 'wa’ DIS',
        yy : translate$9
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Turkish [tr]
//! authors : Erhan Gundogan : https://github.com/erhangundogan,
//!           Burak Yiğit Kaya: https://github.com/BYK

var suffixes$3 = {
    1: '\'inci',
    5: '\'inci',
    8: '\'inci',
    70: '\'inci',
    80: '\'inci',
    2: '\'nci',
    7: '\'nci',
    20: '\'nci',
    50: '\'nci',
    3: '\'üncü',
    4: '\'üncü',
    100: '\'üncü',
    6: '\'ncı',
    9: '\'uncu',
    10: '\'uncu',
    30: '\'uncu',
    60: '\'ıncı',
    90: '\'ıncı'
};

hooks.defineLocale('tr', {
    months : 'Ocak_Şubat_Mart_Nisan_Mayıs_Haziran_Temmuz_Ağustos_Eylül_Ekim_Kasım_Aralık'.split('_'),
    monthsShort : 'Oca_Şub_Mar_Nis_May_Haz_Tem_Ağu_Eyl_Eki_Kas_Ara'.split('_'),
    weekdays : 'Pazar_Pazartesi_Salı_Çarşamba_Perşembe_Cuma_Cumartesi'.split('_'),
    weekdaysShort : 'Paz_Pts_Sal_Çar_Per_Cum_Cts'.split('_'),
    weekdaysMin : 'Pz_Pt_Sa_Ça_Pe_Cu_Ct'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[bugün saat] LT',
        nextDay : '[yarın saat] LT',
        nextWeek : '[gelecek] dddd [saat] LT',
        lastDay : '[dün] LT',
        lastWeek : '[geçen] dddd [saat] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s sonra',
        past : '%s önce',
        s : 'birkaç saniye',
        m : 'bir dakika',
        mm : '%d dakika',
        h : 'bir saat',
        hh : '%d saat',
        d : 'bir gün',
        dd : '%d gün',
        M : 'bir ay',
        MM : '%d ay',
        y : 'bir yıl',
        yy : '%d yıl'
    },
    dayOfMonthOrdinalParse: /\d{1,2}'(inci|nci|üncü|ncı|uncu|ıncı)/,
    ordinal : function (number) {
        if (number === 0) {  // special case for zero
            return number + '\'ıncı';
        }
        var a = number % 10,
            b = number % 100 - a,
            c = number >= 100 ? 100 : null;
        return number + (suffixes$3[a] || suffixes$3[b] || suffixes$3[c]);
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Talossan [tzl]
//! author : Robin van der Vliet : https://github.com/robin0van0der0v
//! author : Iustì Canun

// After the year there should be a slash and the amount of years since December 26, 1979 in Roman numerals.
// This is currently too difficult (maybe even impossible) to add.
hooks.defineLocale('tzl', {
    months : 'Januar_Fevraglh_Març_Avrïu_Mai_Gün_Julia_Guscht_Setemvar_Listopäts_Noemvar_Zecemvar'.split('_'),
    monthsShort : 'Jan_Fev_Mar_Avr_Mai_Gün_Jul_Gus_Set_Lis_Noe_Zec'.split('_'),
    weekdays : 'Súladi_Lúneçi_Maitzi_Márcuri_Xhúadi_Viénerçi_Sáturi'.split('_'),
    weekdaysShort : 'Súl_Lún_Mai_Már_Xhú_Vié_Sát'.split('_'),
    weekdaysMin : 'Sú_Lú_Ma_Má_Xh_Vi_Sá'.split('_'),
    longDateFormat : {
        LT : 'HH.mm',
        LTS : 'HH.mm.ss',
        L : 'DD.MM.YYYY',
        LL : 'D. MMMM [dallas] YYYY',
        LLL : 'D. MMMM [dallas] YYYY HH.mm',
        LLLL : 'dddd, [li] D. MMMM [dallas] YYYY HH.mm'
    },
    meridiemParse: /d\'o|d\'a/i,
    isPM : function (input) {
        return 'd\'o' === input.toLowerCase();
    },
    meridiem : function (hours, minutes, isLower) {
        if (hours > 11) {
            return isLower ? 'd\'o' : 'D\'O';
        } else {
            return isLower ? 'd\'a' : 'D\'A';
        }
    },
    calendar : {
        sameDay : '[oxhi à] LT',
        nextDay : '[demà à] LT',
        nextWeek : 'dddd [à] LT',
        lastDay : '[ieiri à] LT',
        lastWeek : '[sür el] dddd [lasteu à] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'osprei %s',
        past : 'ja%s',
        s : processRelativeTime$7,
        m : processRelativeTime$7,
        mm : processRelativeTime$7,
        h : processRelativeTime$7,
        hh : processRelativeTime$7,
        d : processRelativeTime$7,
        dd : processRelativeTime$7,
        M : processRelativeTime$7,
        MM : processRelativeTime$7,
        y : processRelativeTime$7,
        yy : processRelativeTime$7
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

function processRelativeTime$7(number, withoutSuffix, key, isFuture) {
    var format = {
        's': ['viensas secunds', '\'iensas secunds'],
        'm': ['\'n míut', '\'iens míut'],
        'mm': [number + ' míuts', '' + number + ' míuts'],
        'h': ['\'n þora', '\'iensa þora'],
        'hh': [number + ' þoras', '' + number + ' þoras'],
        'd': ['\'n ziua', '\'iensa ziua'],
        'dd': [number + ' ziuas', '' + number + ' ziuas'],
        'M': ['\'n mes', '\'iens mes'],
        'MM': [number + ' mesen', '' + number + ' mesen'],
        'y': ['\'n ar', '\'iens ar'],
        'yy': [number + ' ars', '' + number + ' ars']
    };
    return isFuture ? format[key][0] : (withoutSuffix ? format[key][0] : format[key][1]);
}

//! moment.js locale configuration
//! locale : Central Atlas Tamazight Latin [tzm-latn]
//! author : Abdel Said : https://github.com/abdelsaid

hooks.defineLocale('tzm-latn', {
    months : 'innayr_brˤayrˤ_marˤsˤ_ibrir_mayyw_ywnyw_ywlywz_ɣwšt_šwtanbir_ktˤwbrˤ_nwwanbir_dwjnbir'.split('_'),
    monthsShort : 'innayr_brˤayrˤ_marˤsˤ_ibrir_mayyw_ywnyw_ywlywz_ɣwšt_šwtanbir_ktˤwbrˤ_nwwanbir_dwjnbir'.split('_'),
    weekdays : 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
    weekdaysShort : 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
    weekdaysMin : 'asamas_aynas_asinas_akras_akwas_asimwas_asiḍyas'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[asdkh g] LT',
        nextDay: '[aska g] LT',
        nextWeek: 'dddd [g] LT',
        lastDay: '[assant g] LT',
        lastWeek: 'dddd [g] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'dadkh s yan %s',
        past : 'yan %s',
        s : 'imik',
        m : 'minuḍ',
        mm : '%d minuḍ',
        h : 'saɛa',
        hh : '%d tassaɛin',
        d : 'ass',
        dd : '%d ossan',
        M : 'ayowr',
        MM : '%d iyyirn',
        y : 'asgas',
        yy : '%d isgasn'
    },
    week : {
        dow : 6, // Saturday is the first day of the week.
        doy : 12  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Central Atlas Tamazight [tzm]
//! author : Abdel Said : https://github.com/abdelsaid

hooks.defineLocale('tzm', {
    months : 'ⵉⵏⵏⴰⵢⵔ_ⴱⵕⴰⵢⵕ_ⵎⴰⵕⵚ_ⵉⴱⵔⵉⵔ_ⵎⴰⵢⵢⵓ_ⵢⵓⵏⵢⵓ_ⵢⵓⵍⵢⵓⵣ_ⵖⵓⵛⵜ_ⵛⵓⵜⴰⵏⴱⵉⵔ_ⴽⵟⵓⴱⵕ_ⵏⵓⵡⴰⵏⴱⵉⵔ_ⴷⵓⵊⵏⴱⵉⵔ'.split('_'),
    monthsShort : 'ⵉⵏⵏⴰⵢⵔ_ⴱⵕⴰⵢⵕ_ⵎⴰⵕⵚ_ⵉⴱⵔⵉⵔ_ⵎⴰⵢⵢⵓ_ⵢⵓⵏⵢⵓ_ⵢⵓⵍⵢⵓⵣ_ⵖⵓⵛⵜ_ⵛⵓⵜⴰⵏⴱⵉⵔ_ⴽⵟⵓⴱⵕ_ⵏⵓⵡⴰⵏⴱⵉⵔ_ⴷⵓⵊⵏⴱⵉⵔ'.split('_'),
    weekdays : 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
    weekdaysShort : 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
    weekdaysMin : 'ⴰⵙⴰⵎⴰⵙ_ⴰⵢⵏⴰⵙ_ⴰⵙⵉⵏⴰⵙ_ⴰⴽⵔⴰⵙ_ⴰⴽⵡⴰⵙ_ⴰⵙⵉⵎⵡⴰⵙ_ⴰⵙⵉⴹⵢⴰⵙ'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS: 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[ⴰⵙⴷⵅ ⴴ] LT',
        nextDay: '[ⴰⵙⴽⴰ ⴴ] LT',
        nextWeek: 'dddd [ⴴ] LT',
        lastDay: '[ⴰⵚⴰⵏⵜ ⴴ] LT',
        lastWeek: 'dddd [ⴴ] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'ⴷⴰⴷⵅ ⵙ ⵢⴰⵏ %s',
        past : 'ⵢⴰⵏ %s',
        s : 'ⵉⵎⵉⴽ',
        m : 'ⵎⵉⵏⵓⴺ',
        mm : '%d ⵎⵉⵏⵓⴺ',
        h : 'ⵙⴰⵄⴰ',
        hh : '%d ⵜⴰⵙⵙⴰⵄⵉⵏ',
        d : 'ⴰⵙⵙ',
        dd : '%d oⵙⵙⴰⵏ',
        M : 'ⴰⵢoⵓⵔ',
        MM : '%d ⵉⵢⵢⵉⵔⵏ',
        y : 'ⴰⵙⴳⴰⵙ',
        yy : '%d ⵉⵙⴳⴰⵙⵏ'
    },
    week : {
        dow : 6, // Saturday is the first day of the week.
        doy : 12  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Ukrainian [uk]
//! author : zemlanin : https://github.com/zemlanin
//! Author : Menelion Elensúle : https://github.com/Oire

function plural$6(word, num) {
    var forms = word.split('_');
    return num % 10 === 1 && num % 100 !== 11 ? forms[0] : (num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20) ? forms[1] : forms[2]);
}
function relativeTimeWithPlural$4(number, withoutSuffix, key) {
    var format = {
        'mm': withoutSuffix ? 'хвилина_хвилини_хвилин' : 'хвилину_хвилини_хвилин',
        'hh': withoutSuffix ? 'година_години_годин' : 'годину_години_годин',
        'dd': 'день_дні_днів',
        'MM': 'місяць_місяці_місяців',
        'yy': 'рік_роки_років'
    };
    if (key === 'm') {
        return withoutSuffix ? 'хвилина' : 'хвилину';
    }
    else if (key === 'h') {
        return withoutSuffix ? 'година' : 'годину';
    }
    else {
        return number + ' ' + plural$6(format[key], +number);
    }
}
function weekdaysCaseReplace(m, format) {
    var weekdays = {
        'nominative': 'неділя_понеділок_вівторок_середа_четвер_п’ятниця_субота'.split('_'),
        'accusative': 'неділю_понеділок_вівторок_середу_четвер_п’ятницю_суботу'.split('_'),
        'genitive': 'неділі_понеділка_вівторка_середи_четверга_п’ятниці_суботи'.split('_')
    };

    if (!m) {
        return weekdays['nominative'];
    }

    var nounCase = (/(\[[ВвУу]\]) ?dddd/).test(format) ?
        'accusative' :
        ((/\[?(?:минулої|наступної)? ?\] ?dddd/).test(format) ?
            'genitive' :
            'nominative');
    return weekdays[nounCase][m.day()];
}
function processHoursFunction(str) {
    return function () {
        return str + 'о' + (this.hours() === 11 ? 'б' : '') + '] LT';
    };
}

hooks.defineLocale('uk', {
    months : {
        'format': 'січня_лютого_березня_квітня_травня_червня_липня_серпня_вересня_жовтня_листопада_грудня'.split('_'),
        'standalone': 'січень_лютий_березень_квітень_травень_червень_липень_серпень_вересень_жовтень_листопад_грудень'.split('_')
    },
    monthsShort : 'січ_лют_бер_квіт_трав_черв_лип_серп_вер_жовт_лист_груд'.split('_'),
    weekdays : weekdaysCaseReplace,
    weekdaysShort : 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
    weekdaysMin : 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D MMMM YYYY р.',
        LLL : 'D MMMM YYYY р., HH:mm',
        LLLL : 'dddd, D MMMM YYYY р., HH:mm'
    },
    calendar : {
        sameDay: processHoursFunction('[Сьогодні '),
        nextDay: processHoursFunction('[Завтра '),
        lastDay: processHoursFunction('[Вчора '),
        nextWeek: processHoursFunction('[У] dddd ['),
        lastWeek: function () {
            switch (this.day()) {
                case 0:
                case 3:
                case 5:
                case 6:
                    return processHoursFunction('[Минулої] dddd [').call(this);
                case 1:
                case 2:
                case 4:
                    return processHoursFunction('[Минулого] dddd [').call(this);
            }
        },
        sameElse: 'L'
    },
    relativeTime : {
        future : 'за %s',
        past : '%s тому',
        s : 'декілька секунд',
        m : relativeTimeWithPlural$4,
        mm : relativeTimeWithPlural$4,
        h : 'годину',
        hh : relativeTimeWithPlural$4,
        d : 'день',
        dd : relativeTimeWithPlural$4,
        M : 'місяць',
        MM : relativeTimeWithPlural$4,
        y : 'рік',
        yy : relativeTimeWithPlural$4
    },
    // M. E.: those two are virtually unused but a user might want to implement them for his/her website for some reason
    meridiemParse: /ночі|ранку|дня|вечора/,
    isPM: function (input) {
        return /^(дня|вечора)$/.test(input);
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 4) {
            return 'ночі';
        } else if (hour < 12) {
            return 'ранку';
        } else if (hour < 17) {
            return 'дня';
        } else {
            return 'вечора';
        }
    },
    dayOfMonthOrdinalParse: /\d{1,2}-(й|го)/,
    ordinal: function (number, period) {
        switch (period) {
            case 'M':
            case 'd':
            case 'DDD':
            case 'w':
            case 'W':
                return number + '-й';
            case 'D':
                return number + '-го';
            default:
                return number;
        }
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Urdu [ur]
//! author : Sawood Alam : https://github.com/ibnesayeed
//! author : Zack : https://github.com/ZackVision

var months$8 = [
    'جنوری',
    'فروری',
    'مارچ',
    'اپریل',
    'مئی',
    'جون',
    'جولائی',
    'اگست',
    'ستمبر',
    'اکتوبر',
    'نومبر',
    'دسمبر'
];
var days$2 = [
    'اتوار',
    'پیر',
    'منگل',
    'بدھ',
    'جمعرات',
    'جمعہ',
    'ہفتہ'
];

hooks.defineLocale('ur', {
    months : months$8,
    monthsShort : months$8,
    weekdays : days$2,
    weekdaysShort : days$2,
    weekdaysMin : days$2,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd، D MMMM YYYY HH:mm'
    },
    meridiemParse: /صبح|شام/,
    isPM : function (input) {
        return 'شام' === input;
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 12) {
            return 'صبح';
        }
        return 'شام';
    },
    calendar : {
        sameDay : '[آج بوقت] LT',
        nextDay : '[کل بوقت] LT',
        nextWeek : 'dddd [بوقت] LT',
        lastDay : '[گذشتہ روز بوقت] LT',
        lastWeek : '[گذشتہ] dddd [بوقت] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s بعد',
        past : '%s قبل',
        s : 'چند سیکنڈ',
        m : 'ایک منٹ',
        mm : '%d منٹ',
        h : 'ایک گھنٹہ',
        hh : '%d گھنٹے',
        d : 'ایک دن',
        dd : '%d دن',
        M : 'ایک ماہ',
        MM : '%d ماہ',
        y : 'ایک سال',
        yy : '%d سال'
    },
    preparse: function (string) {
        return string.replace(/،/g, ',');
    },
    postformat: function (string) {
        return string.replace(/,/g, '،');
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Uzbek Latin [uz-latn]
//! author : Rasulbek Mirzayev : github.com/Rasulbeeek

hooks.defineLocale('uz-latn', {
    months : 'Yanvar_Fevral_Mart_Aprel_May_Iyun_Iyul_Avgust_Sentabr_Oktabr_Noyabr_Dekabr'.split('_'),
    monthsShort : 'Yan_Fev_Mar_Apr_May_Iyun_Iyul_Avg_Sen_Okt_Noy_Dek'.split('_'),
    weekdays : 'Yakshanba_Dushanba_Seshanba_Chorshanba_Payshanba_Juma_Shanba'.split('_'),
    weekdaysShort : 'Yak_Dush_Sesh_Chor_Pay_Jum_Shan'.split('_'),
    weekdaysMin : 'Ya_Du_Se_Cho_Pa_Ju_Sha'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'D MMMM YYYY, dddd HH:mm'
    },
    calendar : {
        sameDay : '[Bugun soat] LT [da]',
        nextDay : '[Ertaga] LT [da]',
        nextWeek : 'dddd [kuni soat] LT [da]',
        lastDay : '[Kecha soat] LT [da]',
        lastWeek : '[O\'tgan] dddd [kuni soat] LT [da]',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'Yaqin %s ichida',
        past : 'Bir necha %s oldin',
        s : 'soniya',
        m : 'bir daqiqa',
        mm : '%d daqiqa',
        h : 'bir soat',
        hh : '%d soat',
        d : 'bir kun',
        dd : '%d kun',
        M : 'bir oy',
        MM : '%d oy',
        y : 'bir yil',
        yy : '%d yil'
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Uzbek [uz]
//! author : Sardor Muminov : https://github.com/muminoff

hooks.defineLocale('uz', {
    months : 'январ_феврал_март_апрел_май_июн_июл_август_сентябр_октябр_ноябр_декабр'.split('_'),
    monthsShort : 'янв_фев_мар_апр_май_июн_июл_авг_сен_окт_ноя_дек'.split('_'),
    weekdays : 'Якшанба_Душанба_Сешанба_Чоршанба_Пайшанба_Жума_Шанба'.split('_'),
    weekdaysShort : 'Якш_Душ_Сеш_Чор_Пай_Жум_Шан'.split('_'),
    weekdaysMin : 'Як_Ду_Се_Чо_Па_Жу_Ша'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'D MMMM YYYY, dddd HH:mm'
    },
    calendar : {
        sameDay : '[Бугун соат] LT [да]',
        nextDay : '[Эртага] LT [да]',
        nextWeek : 'dddd [куни соат] LT [да]',
        lastDay : '[Кеча соат] LT [да]',
        lastWeek : '[Утган] dddd [куни соат] LT [да]',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'Якин %s ичида',
        past : 'Бир неча %s олдин',
        s : 'фурсат',
        m : 'бир дакика',
        mm : '%d дакика',
        h : 'бир соат',
        hh : '%d соат',
        d : 'бир кун',
        dd : '%d кун',
        M : 'бир ой',
        MM : '%d ой',
        y : 'бир йил',
        yy : '%d йил'
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Vietnamese [vi]
//! author : Bang Nguyen : https://github.com/bangnk

hooks.defineLocale('vi', {
    months : 'tháng 1_tháng 2_tháng 3_tháng 4_tháng 5_tháng 6_tháng 7_tháng 8_tháng 9_tháng 10_tháng 11_tháng 12'.split('_'),
    monthsShort : 'Th01_Th02_Th03_Th04_Th05_Th06_Th07_Th08_Th09_Th10_Th11_Th12'.split('_'),
    monthsParseExact : true,
    weekdays : 'chủ nhật_thứ hai_thứ ba_thứ tư_thứ năm_thứ sáu_thứ bảy'.split('_'),
    weekdaysShort : 'CN_T2_T3_T4_T5_T6_T7'.split('_'),
    weekdaysMin : 'CN_T2_T3_T4_T5_T6_T7'.split('_'),
    weekdaysParseExact : true,
    meridiemParse: /sa|ch/i,
    isPM : function (input) {
        return /^ch$/i.test(input);
    },
    meridiem : function (hours, minutes, isLower) {
        if (hours < 12) {
            return isLower ? 'sa' : 'SA';
        } else {
            return isLower ? 'ch' : 'CH';
        }
    },
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM [năm] YYYY',
        LLL : 'D MMMM [năm] YYYY HH:mm',
        LLLL : 'dddd, D MMMM [năm] YYYY HH:mm',
        l : 'DD/M/YYYY',
        ll : 'D MMM YYYY',
        lll : 'D MMM YYYY HH:mm',
        llll : 'ddd, D MMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[Hôm nay lúc] LT',
        nextDay: '[Ngày mai lúc] LT',
        nextWeek: 'dddd [tuần tới lúc] LT',
        lastDay: '[Hôm qua lúc] LT',
        lastWeek: 'dddd [tuần rồi lúc] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : '%s tới',
        past : '%s trước',
        s : 'vài giây',
        m : 'một phút',
        mm : '%d phút',
        h : 'một giờ',
        hh : '%d giờ',
        d : 'một ngày',
        dd : '%d ngày',
        M : 'một tháng',
        MM : '%d tháng',
        y : 'một năm',
        yy : '%d năm'
    },
    dayOfMonthOrdinalParse: /\d{1,2}/,
    ordinal : function (number) {
        return number;
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Pseudo [x-pseudo]
//! author : Andrew Hood : https://github.com/andrewhood125

hooks.defineLocale('x-pseudo', {
    months : 'J~áñúá~rý_F~ébrú~árý_~Márc~h_Áp~ríl_~Máý_~Júñé~_Júl~ý_Áú~gúst~_Sép~témb~ér_Ó~ctób~ér_Ñ~óvém~bér_~Décé~mbér'.split('_'),
    monthsShort : 'J~áñ_~Féb_~Már_~Ápr_~Máý_~Júñ_~Júl_~Áúg_~Sép_~Óct_~Ñóv_~Déc'.split('_'),
    monthsParseExact : true,
    weekdays : 'S~úñdá~ý_Mó~ñdáý~_Túé~sdáý~_Wéd~ñésd~áý_T~húrs~dáý_~Fríd~áý_S~átúr~dáý'.split('_'),
    weekdaysShort : 'S~úñ_~Móñ_~Túé_~Wéd_~Thú_~Frí_~Sát'.split('_'),
    weekdaysMin : 'S~ú_Mó~_Tú_~Wé_T~h_Fr~_Sá'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[T~ódá~ý át] LT',
        nextDay : '[T~ómó~rró~w át] LT',
        nextWeek : 'dddd [át] LT',
        lastDay : '[Ý~ést~érdá~ý át] LT',
        lastWeek : '[L~ást] dddd [át] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'í~ñ %s',
        past : '%s á~gó',
        s : 'á ~féw ~sécó~ñds',
        m : 'á ~míñ~úté',
        mm : '%d m~íñú~tés',
        h : 'á~ñ hó~úr',
        hh : '%d h~óúrs',
        d : 'á ~dáý',
        dd : '%d d~áýs',
        M : 'á ~móñ~th',
        MM : '%d m~óñt~hs',
        y : 'á ~ýéár',
        yy : '%d ý~éárs'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
    ordinal : function (number) {
        var b = number % 10,
            output = (~~(number % 100 / 10) === 1) ? 'th' :
            (b === 1) ? 'st' :
            (b === 2) ? 'nd' :
            (b === 3) ? 'rd' : 'th';
        return number + output;
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Yoruba Nigeria [yo]
//! author : Atolagbe Abisoye : https://github.com/andela-batolagbe

hooks.defineLocale('yo', {
    months : 'Sẹ́rẹ́_Èrèlè_Ẹrẹ̀nà_Ìgbé_Èbibi_Òkùdu_Agẹmo_Ògún_Owewe_Ọ̀wàrà_Bélú_Ọ̀pẹ̀̀'.split('_'),
    monthsShort : 'Sẹ́r_Èrl_Ẹrn_Ìgb_Èbi_Òkù_Agẹ_Ògú_Owe_Ọ̀wà_Bél_Ọ̀pẹ̀̀'.split('_'),
    weekdays : 'Àìkú_Ajé_Ìsẹ́gun_Ọjọ́rú_Ọjọ́bọ_Ẹtì_Àbámẹ́ta'.split('_'),
    weekdaysShort : 'Àìk_Ajé_Ìsẹ́_Ọjr_Ọjb_Ẹtì_Àbá'.split('_'),
    weekdaysMin : 'Àì_Aj_Ìs_Ọr_Ọb_Ẹt_Àb'.split('_'),
    longDateFormat : {
        LT : 'h:mm A',
        LTS : 'h:mm:ss A',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY h:mm A',
        LLLL : 'dddd, D MMMM YYYY h:mm A'
    },
    calendar : {
        sameDay : '[Ònì ni] LT',
        nextDay : '[Ọ̀la ni] LT',
        nextWeek : 'dddd [Ọsẹ̀ tón\'bọ] [ni] LT',
        lastDay : '[Àna ni] LT',
        lastWeek : 'dddd [Ọsẹ̀ tólọ́] [ni] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'ní %s',
        past : '%s kọjá',
        s : 'ìsẹjú aayá die',
        m : 'ìsẹjú kan',
        mm : 'ìsẹjú %d',
        h : 'wákati kan',
        hh : 'wákati %d',
        d : 'ọjọ́ kan',
        dd : 'ọjọ́ %d',
        M : 'osù kan',
        MM : 'osù %d',
        y : 'ọdún kan',
        yy : 'ọdún %d'
    },
    dayOfMonthOrdinalParse : /ọjọ́\s\d{1,2}/,
    ordinal : 'ọjọ́ %d',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4 // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Chinese (China) [zh-cn]
//! author : suupic : https://github.com/suupic
//! author : Zeno Zeng : https://github.com/zenozeng

hooks.defineLocale('zh-cn', {
    months : '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split('_'),
    monthsShort : '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split('_'),
    weekdays : '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
    weekdaysShort : '周日_周一_周二_周三_周四_周五_周六'.split('_'),
    weekdaysMin : '日_一_二_三_四_五_六'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'YYYY年MMMD日',
        LL : 'YYYY年MMMD日',
        LLL : 'YYYY年MMMD日Ah点mm分',
        LLLL : 'YYYY年MMMD日ddddAh点mm分',
        l : 'YYYY年MMMD日',
        ll : 'YYYY年MMMD日',
        lll : 'YYYY年MMMD日 HH:mm',
        llll : 'YYYY年MMMD日dddd HH:mm'
    },
    meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
    meridiemHour: function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === '凌晨' || meridiem === '早上' ||
                meridiem === '上午') {
            return hour;
        } else if (meridiem === '下午' || meridiem === '晚上') {
            return hour + 12;
        } else {
            // '中午'
            return hour >= 11 ? hour : hour + 12;
        }
    },
    meridiem : function (hour, minute, isLower) {
        var hm = hour * 100 + minute;
        if (hm < 600) {
            return '凌晨';
        } else if (hm < 900) {
            return '早上';
        } else if (hm < 1130) {
            return '上午';
        } else if (hm < 1230) {
            return '中午';
        } else if (hm < 1800) {
            return '下午';
        } else {
            return '晚上';
        }
    },
    calendar : {
        sameDay : '[今天]LT',
        nextDay : '[明天]LT',
        nextWeek : '[下]ddddLT',
        lastDay : '[昨天]LT',
        lastWeek : '[上]ddddLT',
        sameElse : 'L'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(日|月|周)/,
    ordinal : function (number, period) {
        switch (period) {
            case 'd':
            case 'D':
            case 'DDD':
                return number + '日';
            case 'M':
                return number + '月';
            case 'w':
            case 'W':
                return number + '周';
            default:
                return number;
        }
    },
    relativeTime : {
        future : '%s内',
        past : '%s前',
        s : '几秒',
        m : '1 分钟',
        mm : '%d 分钟',
        h : '1 小时',
        hh : '%d 小时',
        d : '1 天',
        dd : '%d 天',
        M : '1 个月',
        MM : '%d 个月',
        y : '1 年',
        yy : '%d 年'
    },
    week : {
        // GB/T 7408-1994《数据元和交换格式·信息交换·日期和时间表示法》与ISO 8601:1988等效
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

//! moment.js locale configuration
//! locale : Chinese (Hong Kong) [zh-hk]
//! author : Ben : https://github.com/ben-lin
//! author : Chris Lam : https://github.com/hehachris
//! author : Konstantin : https://github.com/skfd

hooks.defineLocale('zh-hk', {
    months : '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split('_'),
    monthsShort : '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split('_'),
    weekdays : '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
    weekdaysShort : '週日_週一_週二_週三_週四_週五_週六'.split('_'),
    weekdaysMin : '日_一_二_三_四_五_六'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'YYYY年MMMD日',
        LL : 'YYYY年MMMD日',
        LLL : 'YYYY年MMMD日 HH:mm',
        LLLL : 'YYYY年MMMD日dddd HH:mm',
        l : 'YYYY年MMMD日',
        ll : 'YYYY年MMMD日',
        lll : 'YYYY年MMMD日 HH:mm',
        llll : 'YYYY年MMMD日dddd HH:mm'
    },
    meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
            return hour;
        } else if (meridiem === '中午') {
            return hour >= 11 ? hour : hour + 12;
        } else if (meridiem === '下午' || meridiem === '晚上') {
            return hour + 12;
        }
    },
    meridiem : function (hour, minute, isLower) {
        var hm = hour * 100 + minute;
        if (hm < 600) {
            return '凌晨';
        } else if (hm < 900) {
            return '早上';
        } else if (hm < 1130) {
            return '上午';
        } else if (hm < 1230) {
            return '中午';
        } else if (hm < 1800) {
            return '下午';
        } else {
            return '晚上';
        }
    },
    calendar : {
        sameDay : '[今天]LT',
        nextDay : '[明天]LT',
        nextWeek : '[下]ddddLT',
        lastDay : '[昨天]LT',
        lastWeek : '[上]ddddLT',
        sameElse : 'L'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
    ordinal : function (number, period) {
        switch (period) {
            case 'd' :
            case 'D' :
            case 'DDD' :
                return number + '日';
            case 'M' :
                return number + '月';
            case 'w' :
            case 'W' :
                return number + '週';
            default :
                return number;
        }
    },
    relativeTime : {
        future : '%s內',
        past : '%s前',
        s : '幾秒',
        m : '1 分鐘',
        mm : '%d 分鐘',
        h : '1 小時',
        hh : '%d 小時',
        d : '1 天',
        dd : '%d 天',
        M : '1 個月',
        MM : '%d 個月',
        y : '1 年',
        yy : '%d 年'
    }
});

//! moment.js locale configuration
//! locale : Chinese (Taiwan) [zh-tw]
//! author : Ben : https://github.com/ben-lin
//! author : Chris Lam : https://github.com/hehachris

hooks.defineLocale('zh-tw', {
    months : '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split('_'),
    monthsShort : '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split('_'),
    weekdays : '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
    weekdaysShort : '週日_週一_週二_週三_週四_週五_週六'.split('_'),
    weekdaysMin : '日_一_二_三_四_五_六'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'YYYY年MMMD日',
        LL : 'YYYY年MMMD日',
        LLL : 'YYYY年MMMD日 HH:mm',
        LLLL : 'YYYY年MMMD日dddd HH:mm',
        l : 'YYYY年MMMD日',
        ll : 'YYYY年MMMD日',
        lll : 'YYYY年MMMD日 HH:mm',
        llll : 'YYYY年MMMD日dddd HH:mm'
    },
    meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === '凌晨' || meridiem === '早上' || meridiem === '上午') {
            return hour;
        } else if (meridiem === '中午') {
            return hour >= 11 ? hour : hour + 12;
        } else if (meridiem === '下午' || meridiem === '晚上') {
            return hour + 12;
        }
    },
    meridiem : function (hour, minute, isLower) {
        var hm = hour * 100 + minute;
        if (hm < 600) {
            return '凌晨';
        } else if (hm < 900) {
            return '早上';
        } else if (hm < 1130) {
            return '上午';
        } else if (hm < 1230) {
            return '中午';
        } else if (hm < 1800) {
            return '下午';
        } else {
            return '晚上';
        }
    },
    calendar : {
        sameDay : '[今天]LT',
        nextDay : '[明天]LT',
        nextWeek : '[下]ddddLT',
        lastDay : '[昨天]LT',
        lastWeek : '[上]ddddLT',
        sameElse : 'L'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(日|月|週)/,
    ordinal : function (number, period) {
        switch (period) {
            case 'd' :
            case 'D' :
            case 'DDD' :
                return number + '日';
            case 'M' :
                return number + '月';
            case 'w' :
            case 'W' :
                return number + '週';
            default :
                return number;
        }
    },
    relativeTime : {
        future : '%s內',
        past : '%s前',
        s : '幾秒',
        m : '1 分鐘',
        mm : '%d 分鐘',
        h : '1 小時',
        hh : '%d 小時',
        d : '1 天',
        dd : '%d 天',
        M : '1 個月',
        MM : '%d 個月',
        y : '1 年',
        yy : '%d 年'
    }
});

hooks.locale('en');

return hooks;

})));

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//# sourceMappingURL=underscore-min.map;
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define('codemirror/mode/meta',["../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  CodeMirror.modeInfo = [
    {name: "APL", mime: "text/apl", mode: "apl", ext: ["dyalog", "apl"]},
    {name: "PGP", mimes: ["application/pgp", "application/pgp-encrypted", "application/pgp-keys", "application/pgp-signature"], mode: "asciiarmor", ext: ["asc", "pgp", "sig"]},
    {name: "ASN.1", mime: "text/x-ttcn-asn", mode: "asn.1", ext: ["asn", "asn1"]},
    {name: "Asterisk", mime: "text/x-asterisk", mode: "asterisk", file: /^extensions\.conf$/i},
    {name: "Brainfuck", mime: "text/x-brainfuck", mode: "brainfuck", ext: ["b", "bf"]},
    {name: "C", mime: "text/x-csrc", mode: "clike", ext: ["c", "h", "ino"]},
    {name: "C++", mime: "text/x-c++src", mode: "clike", ext: ["cpp", "c++", "cc", "cxx", "hpp", "h++", "hh", "hxx"], alias: ["cpp"]},
    {name: "Cobol", mime: "text/x-cobol", mode: "cobol", ext: ["cob", "cpy"]},
    {name: "C#", mime: "text/x-csharp", mode: "clike", ext: ["cs"], alias: ["csharp", "cs"]},
    {name: "Clojure", mime: "text/x-clojure", mode: "clojure", ext: ["clj", "cljc", "cljx"]},
    {name: "ClojureScript", mime: "text/x-clojurescript", mode: "clojure", ext: ["cljs"]},
    {name: "Closure Stylesheets (GSS)", mime: "text/x-gss", mode: "css", ext: ["gss"]},
    {name: "CMake", mime: "text/x-cmake", mode: "cmake", ext: ["cmake", "cmake.in"], file: /^CMakeLists.txt$/},
    {name: "CoffeeScript", mimes: ["application/vnd.coffeescript", "text/coffeescript", "text/x-coffeescript"], mode: "coffeescript", ext: ["coffee"], alias: ["coffee", "coffee-script"]},
    {name: "Common Lisp", mime: "text/x-common-lisp", mode: "commonlisp", ext: ["cl", "lisp", "el"], alias: ["lisp"]},
    {name: "Cypher", mime: "application/x-cypher-query", mode: "cypher", ext: ["cyp", "cypher"]},
    {name: "Cython", mime: "text/x-cython", mode: "python", ext: ["pyx", "pxd", "pxi"]},
    {name: "Crystal", mime: "text/x-crystal", mode: "crystal", ext: ["cr"]},
    {name: "CSS", mime: "text/css", mode: "css", ext: ["css"]},
    {name: "CQL", mime: "text/x-cassandra", mode: "sql", ext: ["cql"]},
    {name: "D", mime: "text/x-d", mode: "d", ext: ["d"]},
    {name: "Dart", mimes: ["application/dart", "text/x-dart"], mode: "dart", ext: ["dart"]},
    {name: "diff", mime: "text/x-diff", mode: "diff", ext: ["diff", "patch"]},
    {name: "Django", mime: "text/x-django", mode: "django"},
    {name: "Dockerfile", mime: "text/x-dockerfile", mode: "dockerfile", file: /^Dockerfile$/},
    {name: "DTD", mime: "application/xml-dtd", mode: "dtd", ext: ["dtd"]},
    {name: "Dylan", mime: "text/x-dylan", mode: "dylan", ext: ["dylan", "dyl", "intr"]},
    {name: "EBNF", mime: "text/x-ebnf", mode: "ebnf"},
    {name: "ECL", mime: "text/x-ecl", mode: "ecl", ext: ["ecl"]},
    {name: "edn", mime: "application/edn", mode: "clojure", ext: ["edn"]},
    {name: "Eiffel", mime: "text/x-eiffel", mode: "eiffel", ext: ["e"]},
    {name: "Elm", mime: "text/x-elm", mode: "elm", ext: ["elm"]},
    {name: "Embedded Javascript", mime: "application/x-ejs", mode: "htmlembedded", ext: ["ejs"]},
    {name: "Embedded Ruby", mime: "application/x-erb", mode: "htmlembedded", ext: ["erb"]},
    {name: "Erlang", mime: "text/x-erlang", mode: "erlang", ext: ["erl"]},
    {name: "Esper", mime: "text/x-esper", mode: "sql"},
    {name: "Factor", mime: "text/x-factor", mode: "factor", ext: ["factor"]},
    {name: "FCL", mime: "text/x-fcl", mode: "fcl"},
    {name: "Forth", mime: "text/x-forth", mode: "forth", ext: ["forth", "fth", "4th"]},
    {name: "Fortran", mime: "text/x-fortran", mode: "fortran", ext: ["f", "for", "f77", "f90", "f95"]},
    {name: "F#", mime: "text/x-fsharp", mode: "mllike", ext: ["fs"], alias: ["fsharp"]},
    {name: "Gas", mime: "text/x-gas", mode: "gas", ext: ["s"]},
    {name: "Gherkin", mime: "text/x-feature", mode: "gherkin", ext: ["feature"]},
    {name: "GitHub Flavored Markdown", mime: "text/x-gfm", mode: "gfm", file: /^(readme|contributing|history).md$/i},
    {name: "Go", mime: "text/x-go", mode: "go", ext: ["go"]},
    {name: "Groovy", mime: "text/x-groovy", mode: "groovy", ext: ["groovy", "gradle"], file: /^Jenkinsfile$/},
    {name: "HAML", mime: "text/x-haml", mode: "haml", ext: ["haml"]},
    {name: "Haskell", mime: "text/x-haskell", mode: "haskell", ext: ["hs"]},
    {name: "Haskell (Literate)", mime: "text/x-literate-haskell", mode: "haskell-literate", ext: ["lhs"]},
    {name: "Haxe", mime: "text/x-haxe", mode: "haxe", ext: ["hx"]},
    {name: "HXML", mime: "text/x-hxml", mode: "haxe", ext: ["hxml"]},
    {name: "ASP.NET", mime: "application/x-aspx", mode: "htmlembedded", ext: ["aspx"], alias: ["asp", "aspx"]},
    {name: "HTML", mime: "text/html", mode: "htmlmixed", ext: ["html", "htm", "handlebars", "hbs"], alias: ["xhtml"]},
    {name: "HTTP", mime: "message/http", mode: "http"},
    {name: "IDL", mime: "text/x-idl", mode: "idl", ext: ["pro"]},
    {name: "Pug", mime: "text/x-pug", mode: "pug", ext: ["jade", "pug"], alias: ["jade"]},
    {name: "Java", mime: "text/x-java", mode: "clike", ext: ["java"]},
    {name: "Java Server Pages", mime: "application/x-jsp", mode: "htmlembedded", ext: ["jsp"], alias: ["jsp"]},
    {name: "JavaScript", mimes: ["text/javascript", "text/ecmascript", "application/javascript", "application/x-javascript", "application/ecmascript"],
     mode: "javascript", ext: ["js"], alias: ["ecmascript", "js", "node"]},
    {name: "JSON", mimes: ["application/json", "application/x-json"], mode: "javascript", ext: ["json", "map"], alias: ["json5"]},
    {name: "JSON-LD", mime: "application/ld+json", mode: "javascript", ext: ["jsonld"], alias: ["jsonld"]},
    {name: "JSX", mime: "text/jsx", mode: "jsx", ext: ["jsx"]},
    {name: "Jinja2", mime: "text/jinja2", mode: "jinja2", ext: ["j2", "jinja", "jinja2"]},
    {name: "Julia", mime: "text/x-julia", mode: "julia", ext: ["jl"]},
    {name: "Kotlin", mime: "text/x-kotlin", mode: "clike", ext: ["kt"]},
    {name: "LESS", mime: "text/x-less", mode: "css", ext: ["less"]},
    {name: "LiveScript", mime: "text/x-livescript", mode: "livescript", ext: ["ls"], alias: ["ls"]},
    {name: "Lua", mime: "text/x-lua", mode: "lua", ext: ["lua"]},
    {name: "Markdown", mime: "text/x-markdown", mode: "markdown", ext: ["markdown", "md", "mkd"]},
    {name: "mIRC", mime: "text/mirc", mode: "mirc"},
    {name: "MariaDB SQL", mime: "text/x-mariadb", mode: "sql"},
    {name: "Mathematica", mime: "text/x-mathematica", mode: "mathematica", ext: ["m", "nb", "wl", "wls"]},
    {name: "Modelica", mime: "text/x-modelica", mode: "modelica", ext: ["mo"]},
    {name: "MUMPS", mime: "text/x-mumps", mode: "mumps", ext: ["mps"]},
    {name: "MS SQL", mime: "text/x-mssql", mode: "sql"},
    {name: "mbox", mime: "application/mbox", mode: "mbox", ext: ["mbox"]},
    {name: "MySQL", mime: "text/x-mysql", mode: "sql"},
    {name: "Nginx", mime: "text/x-nginx-conf", mode: "nginx", file: /nginx.*\.conf$/i},
    {name: "NSIS", mime: "text/x-nsis", mode: "nsis", ext: ["nsh", "nsi"]},
    {name: "NTriples", mimes: ["application/n-triples", "application/n-quads", "text/n-triples"],
     mode: "ntriples", ext: ["nt", "nq"]},
    {name: "Objective-C", mime: "text/x-objectivec", mode: "clike", ext: ["m"], alias: ["objective-c", "objc"]},
    {name: "Objective-C++", mime: "text/x-objectivec++", mode: "clike", ext: ["mm"], alias: ["objective-c++", "objc++"]},
    {name: "OCaml", mime: "text/x-ocaml", mode: "mllike", ext: ["ml", "mli", "mll", "mly"]},
    {name: "Octave", mime: "text/x-octave", mode: "octave", ext: ["m"]},
    {name: "Oz", mime: "text/x-oz", mode: "oz", ext: ["oz"]},
    {name: "Pascal", mime: "text/x-pascal", mode: "pascal", ext: ["p", "pas"]},
    {name: "PEG.js", mime: "null", mode: "pegjs", ext: ["jsonld"]},
    {name: "Perl", mime: "text/x-perl", mode: "perl", ext: ["pl", "pm"]},
    {name: "PHP", mimes: ["text/x-php", "application/x-httpd-php", "application/x-httpd-php-open"], mode: "php", ext: ["php", "php3", "php4", "php5", "php7", "phtml"]},
    {name: "Pig", mime: "text/x-pig", mode: "pig", ext: ["pig"]},
    {name: "Plain Text", mime: "text/plain", mode: "null", ext: ["txt", "text", "conf", "def", "list", "log"]},
    {name: "PLSQL", mime: "text/x-plsql", mode: "sql", ext: ["pls"]},
    {name: "PostgreSQL", mime: "text/x-pgsql", mode: "sql"},
    {name: "PowerShell", mime: "application/x-powershell", mode: "powershell", ext: ["ps1", "psd1", "psm1"]},
    {name: "Properties files", mime: "text/x-properties", mode: "properties", ext: ["properties", "ini", "in"], alias: ["ini", "properties"]},
    {name: "ProtoBuf", mime: "text/x-protobuf", mode: "protobuf", ext: ["proto"]},
    {name: "Python", mime: "text/x-python", mode: "python", ext: ["BUILD", "bzl", "py", "pyw"], file: /^(BUCK|BUILD)$/},
    {name: "Puppet", mime: "text/x-puppet", mode: "puppet", ext: ["pp"]},
    {name: "Q", mime: "text/x-q", mode: "q", ext: ["q"]},
    {name: "R", mime: "text/x-rsrc", mode: "r", ext: ["r", "R"], alias: ["rscript"]},
    {name: "reStructuredText", mime: "text/x-rst", mode: "rst", ext: ["rst"], alias: ["rst"]},
    {name: "RPM Changes", mime: "text/x-rpm-changes", mode: "rpm"},
    {name: "RPM Spec", mime: "text/x-rpm-spec", mode: "rpm", ext: ["spec"]},
    {name: "Ruby", mime: "text/x-ruby", mode: "ruby", ext: ["rb"], alias: ["jruby", "macruby", "rake", "rb", "rbx"]},
    {name: "Rust", mime: "text/x-rustsrc", mode: "rust", ext: ["rs"]},
    {name: "SAS", mime: "text/x-sas", mode: "sas", ext: ["sas"]},
    {name: "Sass", mime: "text/x-sass", mode: "sass", ext: ["sass"]},
    {name: "Scala", mime: "text/x-scala", mode: "clike", ext: ["scala"]},
    {name: "Scheme", mime: "text/x-scheme", mode: "scheme", ext: ["scm", "ss"]},
    {name: "SCSS", mime: "text/x-scss", mode: "css", ext: ["scss"]},
    {name: "Shell", mimes: ["text/x-sh", "application/x-sh"], mode: "shell", ext: ["sh", "ksh", "bash"], alias: ["bash", "sh", "zsh"], file: /^PKGBUILD$/},
    {name: "Sieve", mime: "application/sieve", mode: "sieve", ext: ["siv", "sieve"]},
    {name: "Slim", mimes: ["text/x-slim", "application/x-slim"], mode: "slim", ext: ["slim"]},
    {name: "Smalltalk", mime: "text/x-stsrc", mode: "smalltalk", ext: ["st"]},
    {name: "Smarty", mime: "text/x-smarty", mode: "smarty", ext: ["tpl"]},
    {name: "Solr", mime: "text/x-solr", mode: "solr"},
    {name: "SML", mime: "text/x-sml", mode: "mllike", ext: ["sml", "sig", "fun", "smackspec"]},
    {name: "Soy", mime: "text/x-soy", mode: "soy", ext: ["soy"], alias: ["closure template"]},
    {name: "SPARQL", mime: "application/sparql-query", mode: "sparql", ext: ["rq", "sparql"], alias: ["sparul"]},
    {name: "Spreadsheet", mime: "text/x-spreadsheet", mode: "spreadsheet", alias: ["excel", "formula"]},
    {name: "SQL", mime: "text/x-sql", mode: "sql", ext: ["sql"]},
    {name: "SQLite", mime: "text/x-sqlite", mode: "sql"},
    {name: "Squirrel", mime: "text/x-squirrel", mode: "clike", ext: ["nut"]},
    {name: "Stylus", mime: "text/x-styl", mode: "stylus", ext: ["styl"]},
    {name: "Swift", mime: "text/x-swift", mode: "swift", ext: ["swift"]},
    {name: "sTeX", mime: "text/x-stex", mode: "stex"},
    {name: "LaTeX", mime: "text/x-latex", mode: "stex", ext: ["text", "ltx", "tex"], alias: ["tex"]},
    {name: "SystemVerilog", mime: "text/x-systemverilog", mode: "verilog", ext: ["v", "sv", "svh"]},
    {name: "Tcl", mime: "text/x-tcl", mode: "tcl", ext: ["tcl"]},
    {name: "Textile", mime: "text/x-textile", mode: "textile", ext: ["textile"]},
    {name: "TiddlyWiki", mime: "text/x-tiddlywiki", mode: "tiddlywiki"},
    {name: "Tiki wiki", mime: "text/tiki", mode: "tiki"},
    {name: "TOML", mime: "text/x-toml", mode: "toml", ext: ["toml"]},
    {name: "Tornado", mime: "text/x-tornado", mode: "tornado"},
    {name: "troff", mime: "text/troff", mode: "troff", ext: ["1", "2", "3", "4", "5", "6", "7", "8", "9"]},
    {name: "TTCN", mime: "text/x-ttcn", mode: "ttcn", ext: ["ttcn", "ttcn3", "ttcnpp"]},
    {name: "TTCN_CFG", mime: "text/x-ttcn-cfg", mode: "ttcn-cfg", ext: ["cfg"]},
    {name: "Turtle", mime: "text/turtle", mode: "turtle", ext: ["ttl"]},
    {name: "TypeScript", mime: "application/typescript", mode: "javascript", ext: ["ts"], alias: ["ts"]},
    {name: "TypeScript-JSX", mime: "text/typescript-jsx", mode: "jsx", ext: ["tsx"], alias: ["tsx"]},
    {name: "Twig", mime: "text/x-twig", mode: "twig"},
    {name: "Web IDL", mime: "text/x-webidl", mode: "webidl", ext: ["webidl"]},
    {name: "VB.NET", mime: "text/x-vb", mode: "vb", ext: ["vb"]},
    {name: "VBScript", mime: "text/vbscript", mode: "vbscript", ext: ["vbs"]},
    {name: "Velocity", mime: "text/velocity", mode: "velocity", ext: ["vtl"]},
    {name: "Verilog", mime: "text/x-verilog", mode: "verilog", ext: ["v"]},
    {name: "VHDL", mime: "text/x-vhdl", mode: "vhdl", ext: ["vhd", "vhdl"]},
    {name: "Vue.js Component", mimes: ["script/x-vue", "text/x-vue"], mode: "vue", ext: ["vue"]},
    {name: "XML", mimes: ["application/xml", "text/xml"], mode: "xml", ext: ["xml", "xsl", "xsd", "svg"], alias: ["rss", "wsdl", "xsd"]},
    {name: "XQuery", mime: "application/xquery", mode: "xquery", ext: ["xy", "xquery"]},
    {name: "Yacas", mime: "text/x-yacas", mode: "yacas", ext: ["ys"]},
    {name: "YAML", mimes: ["text/x-yaml", "text/yaml"], mode: "yaml", ext: ["yaml", "yml"], alias: ["yml"]},
    {name: "Z80", mime: "text/x-z80", mode: "z80", ext: ["z80"]},
    {name: "mscgen", mime: "text/x-mscgen", mode: "mscgen", ext: ["mscgen", "mscin", "msc"]},
    {name: "xu", mime: "text/x-xu", mode: "mscgen", ext: ["xu"]},
    {name: "msgenny", mime: "text/x-msgenny", mode: "mscgen", ext: ["msgenny"]}
  ];
  // Ensure all modes have a mime property for backwards compatibility
  for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
    var info = CodeMirror.modeInfo[i];
    if (info.mimes) info.mime = info.mimes[0];
  }

  CodeMirror.findModeByMIME = function(mime) {
    mime = mime.toLowerCase();
    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
      var info = CodeMirror.modeInfo[i];
      if (info.mime == mime) return info;
      if (info.mimes) for (var j = 0; j < info.mimes.length; j++)
        if (info.mimes[j] == mime) return info;
    }
    if (/\+xml$/.test(mime)) return CodeMirror.findModeByMIME("application/xml")
    if (/\+json$/.test(mime)) return CodeMirror.findModeByMIME("application/json")
  };

  CodeMirror.findModeByExtension = function(ext) {
    ext = ext.toLowerCase();
    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
      var info = CodeMirror.modeInfo[i];
      if (info.ext) for (var j = 0; j < info.ext.length; j++)
        if (info.ext[j] == ext) return info;
    }
  };

  CodeMirror.findModeByFileName = function(filename) {
    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
      var info = CodeMirror.modeInfo[i];
      if (info.file && info.file.test(filename)) return info;
    }
    var dot = filename.lastIndexOf(".");
    var ext = dot > -1 && filename.substring(dot + 1, filename.length);
    if (ext) return CodeMirror.findModeByExtension(ext);
  };

  CodeMirror.findModeByName = function(name) {
    name = name.toLowerCase();
    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
      var info = CodeMirror.modeInfo[i];
      if (info.name.toLowerCase() == name) return info;
      if (info.alias) for (var j = 0; j < info.alias.length; j++)
        if (info.alias[j].toLowerCase() == name) return info;
    }
  };
});

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.

define('base/js/utils',[
    'jquery',
    'codemirror/lib/codemirror',
    'moment',
    'underscore',
    // silently upgrades CodeMirror
    'codemirror/mode/meta',
], function($, CodeMirror, moment, _){
    "use strict";
    
    // keep track of which extensions have been loaded already
    var extensions_loaded = [];

    /**
     * Whether or not an extension has been loaded
     * @param  {string} extension - name of the extension
     * @return {boolean}            true if loaded already
     */
    var is_loaded = function(extension) {
        var ext_path = "nbextensions/" + extension;
        return extensions_loaded.indexOf(ext_path) >= 0;
    };

    /**
     * Load a single extension.
     * @param  {string} extension - extension path.
     * @return {Promise} that resolves to an extension module handle
     */
    var load_extension = function (extension) {
        return new Promise(function(resolve, reject) {
            var ext_path = "nbextensions/" + extension;
            requirejs([ext_path], function(module) {
                if (!is_loaded(extension)) {
                    console.log("Loading extension: " + extension);
                    if (module && module.load_ipython_extension) {
                        Promise.resolve(module.load_ipython_extension()).then(function() {
                            resolve(module);
                        }).catch(reject);
                    }
                    extensions_loaded.push(ext_path);
                } else {
                    console.log("Loaded extension already: " + extension);
                    resolve(module);
                }
            }, function(err) {
                reject(err);
            });
        });
    };

    /**
     * Load multiple extensions.
     * Takes n-args, where each arg is a string path to the extension.
     * @return {Promise} that resolves to a list of loaded module handles.
     */
    var load_extensions = function () {
        console.log('load_extensions', arguments);
        return Promise.all(Array.prototype.map.call(arguments, load_extension)).catch(function(err) {
            console.error("Failed to load extension" + (err.requireModules.length>1?'s':'') + ":", err.requireModules, err);
        });
    };

    /**
     * Return a list of extensions that should be active
     * The config for nbextensions comes in as a dict where keys are
     * nbextensions paths and the values are a bool indicating if it
     * should be active. This returns a list of nbextension paths
     * where the value is true
     */
    function filter_extensions(nbext_config) {
        var active = [];
        Object.keys(nbext_config).forEach(function (nbext) {
            if (nbext_config[nbext]) {active.push(nbext);}
        });
        return active;
    }

    /**
     * Wait for a config section to load, and then load the extensions specified
     * in a 'load_extensions' key inside it.
     */
    function load_extensions_from_config(section) {
        return section.loaded.then(function() {
            if (section.data.load_extensions) {
                var active = filter_extensions(section.data.load_extensions);
                return load_extensions.apply(this, active);
            }
        }).catch(utils.reject('Could not load nbextensions from ' + section.section_name + ' config file'));
    }

    //============================================================================
    // Cross-browser RegEx Split
    //============================================================================

    // This code has been MODIFIED from the code licensed below to not replace the
    // default browser split.  The license is reproduced here.

    // see http://blog.stevenlevithan.com/archives/cross-browser-split for more info:
    /*!
     * Cross-Browser Split 1.1.1
     * Copyright 2007-2012 Steven Levithan <stevenlevithan.com>
     * Available under the MIT License
     * ECMAScript compliant, uniform cross-browser split method
     */

    /**
     * Splits a string into an array of strings using a regex or string
     * separator. Matches of the separator are not included in the result array.
     * However, if `separator` is a regex that contains capturing groups,
     * backreferences are spliced into the result each time `separator` is
     * matched. Fixes browser bugs compared to the native
     * `String.prototype.split` and can be used reliably cross-browser.
     * @param {String} str String to split.
     * @param {RegExp} separator Regex to use for separating
     *     the string.
     * @param {Number} [limit] Maximum number of items to include in the result
     *     array.
     * @returns {Array} Array of substrings.
     * @example
     *
     * // Basic use
     * regex_split('a b c d', ' ');
     * // -> ['a', 'b', 'c', 'd']
     *
     * // With limit
     * regex_split('a b c d', ' ', 2);
     * // -> ['a', 'b']
     *
     * // Backreferences in result array
     * regex_split('..word1 word2..', /([a-z]+)(\d+)/i);
     * // -> ['..', 'word', '1', ' ', 'word', '2', '..']
     */
    var regex_split = function (str, separator, limit) {
        var output = [],
            flags = (separator.ignoreCase ? "i" : "") +
                    (separator.multiline  ? "m" : "") +
                    (separator.extended   ? "x" : "") + // Proposed for ES6
                    (separator.sticky     ? "y" : ""), // Firefox 3+
            lastLastIndex = 0,
            separator2, match, lastIndex, lastLength;
        // Make `global` and avoid `lastIndex` issues by working with a copy
        separator = new RegExp(separator.source, flags + "g");

        var compliantExecNpcg = typeof(/()??/.exec("")[1]) === "undefined";
        if (!compliantExecNpcg) {
            // Doesn't need flags gy, but they don't hurt
            separator2 = new RegExp("^" + separator.source + "$(?!\\s)", flags);
        }
        /* Values for `limit`, per the spec:
         * If undefined: 4294967295 // Math.pow(2, 32) - 1
         * If 0, Infinity, or NaN: 0
         * If positive number: limit = Math.floor(limit); if (limit > 4294967295) limit -= 4294967296;
         * If negative number: 4294967296 - Math.floor(Math.abs(limit))
         * If other: Type-convert, then use the above rules
         */
        limit = typeof(limit) === "undefined" ?
            -1 >>> 0 : // Math.pow(2, 32) - 1
            limit >>> 0; // ToUint32(limit)
        for (match = separator.exec(str); match; match = separator.exec(str)) {
            // `separator.lastIndex` is not reliable cross-browser
            lastIndex = match.index + match[0].length;
            if (lastIndex > lastLastIndex) {
                output.push(str.slice(lastLastIndex, match.index));
                // Fix browsers whose `exec` methods don't consistently return `undefined` for
                // nonparticipating capturing groups
                if (!compliantExecNpcg && match.length > 1) {
                    match[0].replace(separator2, function () {
                        for (var i = 1; i < arguments.length - 2; i++) {
                            if (typeof(arguments[i]) === "undefined") {
                                match[i] = undefined;
                            }
                        }
                    });
                }
                if (match.length > 1 && match.index < str.length) {
                    Array.prototype.push.apply(output, match.slice(1));
                }
                lastLength = match[0].length;
                lastLastIndex = lastIndex;
                if (output.length >= limit) {
                    break;
                }
            }
            if (separator.lastIndex === match.index) {
                separator.lastIndex++; // Avoid an infinite loop
            }
        }
        if (lastLastIndex === str.length) {
            if (lastLength || !separator.test("")) {
                output.push("");
            }
        } else {
            output.push(str.slice(lastLastIndex));
        }
        return output.length > limit ? output.slice(0, limit) : output;
    };

    //============================================================================
    // End contributed Cross-browser RegEx Split
    //============================================================================


    var uuid = function () {
        /**
         * http://www.ietf.org/rfc/rfc4122.txt
         */
        var s = [];
        var hexDigits = "0123456789abcdef";
        for (var i = 0; i < 32; i++) {
            s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1);
        }
        s[12] = "4";  // bits 12-15 of the time_hi_and_version field to 0010
        s[16] = hexDigits.substr((s[16] & 0x3) | 0x8, 1);  // bits 6-7 of the clock_seq_hi_and_reserved to 01

        var uuid = s.join("");
        return uuid;
    };

    var _ANSI_COLORS = [
        "ansi-black",
        "ansi-red",
        "ansi-green",
        "ansi-yellow",
        "ansi-blue",
        "ansi-magenta",
        "ansi-cyan",
        "ansi-white",
        "ansi-black-intense",
        "ansi-red-intense",
        "ansi-green-intense",
        "ansi-yellow-intense",
        "ansi-blue-intense",
        "ansi-magenta-intense",
        "ansi-cyan-intense",
        "ansi-white-intense",
    ];
    
    function _pushColoredChunk(chunk, fg, bg, bold, underline, inverse, out) {
        if (chunk) {
            var classes = [];
            var styles = [];

            if (bold && typeof fg === "number" && 0 <= fg && fg < 8) {
                fg += 8;  // Bold text uses "intense" colors
            }
            if (inverse) {
                [fg, bg] = [bg, fg];
            }

            if (typeof fg === "number") {
                classes.push(_ANSI_COLORS[fg] + "-fg");
            } else if (fg.length) {
                styles.push("color: rgb(" + fg + ")");
            } else if (inverse) {
                classes.push("ansi-default-inverse-fg");
            }

            if (typeof bg === "number") {
                classes.push(_ANSI_COLORS[bg] + "-bg");
            } else if (bg.length) {
                styles.push("background-color: rgb(" + bg + ")");
            } else if (inverse) {
                classes.push("ansi-default-inverse-bg");
            }

            if (bold) {
                classes.push("ansi-bold");
            }

            if (underline) {
                classes.push("ansi-underline");
            }

            if (classes.length || styles.length) {
                out.push("<span");
                if (classes.length) {
                    out.push(' class="' + classes.join(" ") + '"');
                }
                if (styles.length) {
                    out.push(' style="' + styles.join("; ") + '"');
                }
                out.push(">");
                out.push(chunk);
                out.push("</span>");
            } else {
                out.push(chunk);
            }
        }
    }

    function _getExtendedColors(numbers) {
        var r, g, b;
        var n = numbers.shift();
        if (n === 2 && numbers.length >= 3) {
            // 24-bit RGB
            r = numbers.shift();
            g = numbers.shift();
            b = numbers.shift();
            if ([r, g, b].some(function (c) { return c < 0 || 255 < c; })) {
                throw new RangeError("Invalid range for RGB colors");
            }
        } else if (n === 5 && numbers.length >= 1) {
            // 256 colors
            var idx = numbers.shift();
            if (idx < 0) {
                throw new RangeError("Color index must be >= 0");
            } else if (idx < 16) {
                // 16 default terminal colors
                return idx;
            } else if (idx < 232) {
                // 6x6x6 color cube, see https://stackoverflow.com/a/27165165/500098
                r = Math.floor((idx - 16) / 36);
                r = r > 0 ? 55 + r * 40 : 0;
                g = Math.floor(((idx - 16) % 36) / 6);
                g = g > 0 ? 55 + g * 40 : 0;
                b = (idx - 16) % 6;
                b = b > 0 ? 55 + b * 40 : 0;
            } else if (idx < 256) {
                // grayscale, see https://stackoverflow.com/a/27165165/500098
                r = g = b = (idx - 232) * 10 + 8;
            } else {
                throw new RangeError("Color index must be < 256");
            }
        } else {
            throw new RangeError("Invalid extended color specification");
        }
        return [r, g, b];
    }

    function _ansispan(str) {
        var ansi_re = /\x1b\[(.*?)([@-~])/g;
        var fg = [];
        var bg = [];
        var bold = false;
        var underline = false;
        var inverse = false;
        var match;
        var out = [];
        var numbers = [];
        var start = 0;

        str += "\x1b[m";  // Ensure markup for trailing text
        while ((match = ansi_re.exec(str))) {
            if (match[2] === "m") {
                var items = match[1].split(";");
                for (var i = 0; i < items.length; i++) {
                    var item = items[i];
                    if (item === "") {
                        numbers.push(0);
                    } else if (item.search(/^\d+$/) !== -1) {
                        numbers.push(parseInt(item));
                    } else {
                        // Ignored: Invalid color specification
                        numbers.length = 0;
                        break;
                    }
                }
            } else {
                // Ignored: Not a color code
            }
            var chunk = str.substring(start, match.index);
	    _pushColoredChunk(chunk, fg, bg, bold, underline, inverse, out);
            start = ansi_re.lastIndex;

            while (numbers.length) {
                var n = numbers.shift();
                switch (n) {
                    case 0:
                        fg = bg = [];
                        bold = false;
                        underline = false;
                        inverse = false;
                        break;
                    case 1:
                    case 5:
                        bold = true;
                        break;
                    case 4:
                        underline = true;
                        break;
                    case 7:
                        inverse = true;
                        break;
                    case 21:
                    case 22:
                        bold = false;
                        break;
                    case 24:
                        underline = false;
                        break;
                    case 27:
                        inverse = false;
                        break;
                    case 30:
                    case 31:
                    case 32:
                    case 33:
                    case 34:
                    case 35:
                    case 36:
                    case 37:
                        fg = n - 30;
                        break;
                    case 38:
                        try {
                            fg = _getExtendedColors(numbers);
                        } catch(e) {
                            numbers.length = 0;
                        }
                        break;
                    case 39:
                        fg = [];
                        break;
                    case 40:
                    case 41:
                    case 42:
                    case 43:
                    case 44:
                    case 45:
                    case 46:
                    case 47:
                        bg = n - 40;
                        break;
                    case 48:
                        try {
                            bg = _getExtendedColors(numbers);
                        } catch(e) {
                            numbers.length = 0;
                        }
                        break;
                    case 49:
                        bg = [];
                        break;
		    case 90:
		    case 91:
		    case 92:
		    case 93:
		    case 94:
		    case 95:
		    case 96:
		    case 97:
			fg = n - 90 + 8;
                        break;
		    case 100:
		    case 101:
		    case 102:
		    case 103:
		    case 104:
		    case 105:
		    case 106:
		    case 107:
			bg = n - 100 + 8;
                        break;
                    default:
                        // Unknown codes are ignored
                }
            }
        }
        return out.join("");
    }

    // Transform ANSI color escape codes into HTML <span> tags with CSS
    // classes such as "ansi-green-intense-fg".
    // The actual colors used are set in the CSS file.
    // This is supposed to have the same behavior as nbconvert.filters.ansi2html()
    function fixConsole(txt) {
        txt = _.escape(txt);

        // color ansi codes (and remove non-color escape sequences)
        txt = _ansispan(txt);
        return txt;
    }

    // Remove chunks that should be overridden by the effect of
    // carriage return characters
    function fixCarriageReturn(txt) {
        txt = txt.replace(/\r+\n/gm, '\n'); // \r followed by \n --> newline
        while (txt.search(/\r[^$]/g) > -1) {
            var base = txt.match(/^(.*)\r+/m)[1];
            var insert = txt.match(/\r+(.*)$/m)[1];
            insert = insert + base.slice(insert.length, base.length);
            txt = txt.replace(/\r+.*$/m, '\r').replace(/^.*\r/m, insert);
        }
        return txt;
    }

    // Remove characters that are overridden by backspace characters
    function fixBackspace(txt) {
        var tmp = txt;
        do {
            txt = tmp;
            // Cancel out anything-but-newline followed by backspace
            tmp = txt.replace(/[^\n]\x08/gm, '');
        } while (tmp.length < txt.length);
        return txt;
    }

    // Remove characters overridden by backspace and carriage return
    function fixOverwrittenChars(txt) {
        return fixCarriageReturn(fixBackspace(txt));
    }

    // Locate any URLs and convert them to an anchor tag
    function autoLinkUrls(txt) {
        return txt.replace(/(^|\s)(https?|ftp)(:[^'"<>\s]+)/gi,
            "$1<a target=\"_blank\" href=\"$2$3\">$2$3</a>");
    }

    var points_to_pixels = function (points) {
        /**
         * A reasonably good way of converting between points and pixels.
         */
        var test = $('<div style="display: none; width: 10000pt; padding:0; border:0;"></div>');
        $('body').append(test);
        var pixel_per_point = test.width()/10000;
        test.remove();
        return Math.floor(points*pixel_per_point);
    };
    
    var always_new = function (constructor) {
        /**
         * wrapper around contructor to avoid requiring `var a = new constructor()`
         * useful for passing constructors as callbacks,
         * not for programmer laziness.
         * from https://programmers.stackexchange.com/questions/118798
         */
        return function () {
            var obj = Object.create(constructor.prototype);
            constructor.apply(obj, arguments);
            return obj;
        };
    };

    var url_path_join = function () {
        /**
         * join a sequence of url components with '/'
         */
        var url = '';
        for (var i = 0; i < arguments.length; i++) {
            if (arguments[i] === '') {
                continue;
            }
            if (url.length > 0 && url[url.length-1] != '/') {
                url = url + '/' + arguments[i];
            } else {
                url = url + arguments[i];
            }
        }
        url = url.replace(/\/\/+/, '/');
        return url;
    };
    
    var url_path_split = function (path) {
        /**
         * Like os.path.split for URLs.
         * Always returns two strings, the directory path and the base filename
         */
        
        var idx = path.lastIndexOf('/');
        if (idx === -1) {
            return ['', path];
        } else {
            return [ path.slice(0, idx), path.slice(idx + 1) ];
        }
    };
    
    var parse_url = function (url) {
        /**
         * an `a` element with an href allows attr-access to the parsed segments of a URL
         * a = parse_url("http://localhost:8888/path/name#hash")
         * a.protocol = "http:"
         * a.host     = "localhost:8888"
         * a.hostname = "localhost"
         * a.port     = 8888
         * a.pathname = "/path/name"
         * a.hash     = "#hash"
         */
        var a = document.createElement("a");
        a.href = url;
        return a;
    };
    
    var encode_uri_components = function (uri) {
        /**
         * encode just the components of a multi-segment uri,
         * leaving '/' separators
         */
        return uri.split('/').map(encodeURIComponent).join('/');
    };
    
    var url_join_encode = function () {
        /**
         * join a sequence of url components with '/',
         * encoding each component with encodeURIComponent
         */
        return encode_uri_components(url_path_join.apply(null, arguments));
    };


    var splitext = function (filename) {
        /**
         * mimic Python os.path.splitext
         * Returns ['base', '.ext']
         */
        var idx = filename.lastIndexOf('.');
        if (idx > 0) {
            return [filename.slice(0, idx), filename.slice(idx)];
        } else {
            return [filename, ''];
        }
    };


    var escape_html = function (text) {
        /**
         * escape text to HTML
         */
        return $("<div/>").text(text).html();
    };


    var get_body_data = function(key) {
        /**
         * get a url-encoded item from body.data and decode it
         * we should never have any encoded URLs anywhere else in code
         * until we are building an actual request
         */
        var val = $('body').data(key);
        if (typeof val === 'undefined')
            return val;
        return decodeURIComponent(val);
    };
    
    var to_absolute_cursor_pos = function (cm, cursor) {
        console.warn('`utils.to_absolute_cursor_pos(cm, pos)` is deprecated. Use `cm.indexFromPos(cursor)`');
        return cm.indexFromPos(cursor);
    };
    
    var from_absolute_cursor_pos = function (cm, cursor_pos) {
        console.warn('`utils.from_absolute_cursor_pos(cm, pos)` is deprecated. Use `cm.posFromIndex(index)`');
        return cm.posFromIndex(cursor_pos);
    };
    
    // https://stackoverflow.com/questions/2400935/browser-detection-in-javascript
    var browser = (function() {
        if (typeof navigator === 'undefined') {
            // navigator undefined in node
            return 'None';
        }
        var N= navigator.appName, ua= navigator.userAgent, tem;
        var M= ua.match(/(opera|chrome|safari|firefox|msie)\/?\s*(\.?\d+(\.\d+)*)/i);
        if (M && (tem= ua.match(/version\/([\.\d]+)/i)) !== null) M[2]= tem[1];
        M= M? [M[1], M[2]]: [N, navigator.appVersion,'-?'];
        return M;
    })();

    // https://stackoverflow.com/questions/11219582/how-to-detect-my-browser-version-and-operating-system-using-javascript
    var platform = (function () {
        if (typeof navigator === 'undefined') {
            // navigator undefined in node
            return 'None';
        }
        var OSName="None";
        if (navigator.appVersion.indexOf("Win")!=-1) OSName="Windows";
        if (navigator.appVersion.indexOf("Mac")!=-1) OSName="MacOS";
        if (navigator.appVersion.indexOf("X11")!=-1) OSName="UNIX";
        if (navigator.appVersion.indexOf("Linux")!=-1) OSName="Linux";
        return OSName;
    })();
    
    var get_url_param = function (name) {
        // get a URL parameter. I cannot believe we actually need this.
        // Based on https://stackoverflow.com/a/25359264/938949
        var match = new RegExp('[?&]' + name + '=([^&]*)').exec(window.location.search);
        if (match){
            return decodeURIComponent(match[1] || '');
        }
    };
    
    var is_or_has = function (a, b) {
        /**
         * Is b a child of a or a itself?
         */
        return a.has(b).length !==0 || a.is(b);
    };

    var is_focused = function (e) {
        /**
         * Is element e, or one of its children focused?
         */
        e = $(e);
        var target = $(document.activeElement);
        if (target.length > 0) {
            if (is_or_has(e, target)) {
                return true;
            } else {
                return false;
            }
        } else {
            return false;
        }
    };
    
    var mergeopt = function(_class, options, overwrite){
        options = options || {};
        overwrite = overwrite || {};
        return $.extend(true, {}, _class.options_default, options, overwrite);
    };
    
    var ajax_error_msg = function (jqXHR) {
        /**
         * Return a JSON error message if there is one,
         * otherwise the basic HTTP status text.
         */
        if (jqXHR.responseJSON && jqXHR.responseJSON.traceback) {
            return jqXHR.responseJSON.traceback;
        } else if (jqXHR.responseJSON && jqXHR.responseJSON.message) {
            return jqXHR.responseJSON.message;
        } else {
            return jqXHR.statusText;
        }
    };
    var log_ajax_error = function (jqXHR, status, error) {
        /**
         * log ajax failures with informative messages
         */
        var msg = "API request failed (" + jqXHR.status + "): ";
        console.log(jqXHR);
        msg += ajax_error_msg(jqXHR);
        console.log(msg);
    };

    var requireCodeMirrorMode = function (mode, callback, errback) {
        /** 
         * find a predefined mode or detect from CM metadata then
         * require and callback with the resolvable mode string: mime or
         * custom name
         */

        var modename = (typeof mode == "string") ? mode :
            mode.mode || mode.name;

        // simplest, cheapest check by mode name: mode may also have config
        if (CodeMirror.modes.hasOwnProperty(modename)) {
            // return the full mode object, if it has a name
            callback(mode.name ? mode : modename);
            return;
        }

        // *somehow* get back a CM.modeInfo-like object that has .mode and
        // .mime
        var info = (mode && mode.mode && mode.mime && mode) ||
            CodeMirror.findModeByName(modename) ||
            CodeMirror.findModeByExtension(modename.split(".").slice(-1)[0]) ||
            CodeMirror.findModeByMIME(modename) ||
            {mode: modename, mime: modename};

        requirejs([
                // might want to use CodeMirror.modeURL here
                ['codemirror/mode', info.mode, info.mode].join('/'),
            ], function() {
              // return the original mode, as from a kernelspec on first load
              // or the mimetype, as for most highlighting
              callback(mode.name ? mode : info.mime);
            }, errback
        );
    };
    
    /** Error type for wrapped XHR errors. */
    var XHR_ERROR = 'XhrError';
    
    /**
     * Wraps an AJAX error as an Error object.
     */
    var wrap_ajax_error = function (jqXHR, status, error) {
        var wrapped_error = new Error(ajax_error_msg(jqXHR));
        wrapped_error.name =  XHR_ERROR;
        // provide xhr response
        wrapped_error.xhr = jqXHR;
        wrapped_error.xhr_status = status;
        wrapped_error.xhr_error = error;
        return wrapped_error;
    };
    
    var ajax = function (url, settings) {
        // like $.ajax, but ensure XSRF or Authorization header is set
        if (typeof url === "object") {
            // called with single argument: $.ajax({url: '...'})
            settings = url;
            url = settings.url;
            delete settings.url;
        }
        settings = _add_auth_header(settings);
        return $.ajax(url, settings);
    };
    
    var _get_cookie = function (name) {
        // from tornado docs: http://www.tornadoweb.org/en/stable/guide/security.html
        var r = document.cookie.match("\\b" + name + "=([^;]*)\\b");
        return r ? r[1] : undefined;
    }

    var _add_auth_header = function (settings) {
        /**
         * Adds auth header to jquery ajax settings
         */
        settings = settings || {};
        if (!settings.headers) {
            settings.headers = {};
        }
        if (!settings.headers.Authorization) {
            var xsrf_token = _get_cookie('_xsrf');
            if (xsrf_token) {
                settings.headers['X-XSRFToken'] = xsrf_token;
            }
        }
        return settings;
    };

    var promising_ajax = function(url, settings) {
        /**
         * Like $.ajax, but returning an ES6 promise. success and error settings
         * will be ignored.
         */
        settings = settings || {};
        return new Promise(function(resolve, reject) {
            settings.success = function(data, status, jqXHR) {
                resolve(data);
            };
            settings.error = function(jqXHR, status, error) {
                log_ajax_error(jqXHR, status, error);
                reject(wrap_ajax_error(jqXHR, status, error));
            };
            ajax(url, settings);
        });
    };

    var WrappedError = function(message, error){
        /**
         * Wrappable Error class
         *
         * The Error class doesn't actually act on `this`.  Instead it always
         * returns a new instance of Error.  Here we capture that instance so we
         * can apply it's properties to `this`.
         */
        var tmp = Error.apply(this, [message]);

        // Copy the properties of the error over to this.
        var properties = Object.getOwnPropertyNames(tmp);
        for (var i = 0; i < properties.length; i++) {
            this[properties[i]] = tmp[properties[i]];
        }

        // Keep a stack of the original error messages.
        if (error instanceof WrappedError) {
            this.error_stack = error.error_stack;
        } else {
            this.error_stack = [error];
        }
        this.error_stack.push(tmp);

        return this;
    };

    WrappedError.prototype = Object.create(Error.prototype, {});


    var load_class = function(class_name, module_name, registry) {
        /**
         * Tries to load a class
         *
         * Tries to load a class from a module using require.js, if a module 
         * is specified, otherwise tries to load a class from the global 
         * registry, if the global registry is provided.
         */
        return new Promise(function(resolve, reject) {

            // Try loading the view module using require.js
            if (module_name) {
                requirejs([module_name], function(module) {
                    if (module[class_name] === undefined) {
                        reject(new Error('Class '+class_name+' not found in module '+module_name));
                    } else {
                        resolve(module[class_name]);
                    }
                }, reject);
            } else {
                if (registry && registry[class_name]) {
                    resolve(registry[class_name]);
                } else {
                    reject(new Error('Class '+class_name+' not found in registry '));
                }
            }
        });
    };

    var resolve_promises_dict = function(d) {
        /**
         * Resolve a promiseful dictionary.
         * Returns a single Promise.
         */
        var keys = Object.keys(d);
        var values = [];
        keys.forEach(function(key) {
            values.push(d[key]);
        });
        return Promise.all(values).then(function(v) {
            d = {};
            for(var i=0; i<keys.length; i++) {
                d[keys[i]] = v[i];
            }
            return d;
        });
    };

    var reject = function(message, log) {
        /**
         * Creates a wrappable Promise rejection function.
         * 
         * Creates a function that returns a Promise.reject with a new WrappedError
         * that has the provided message and wraps the original error that 
         * caused the promise to reject.
         */
        return function(error) { 
            var wrapped_error = new WrappedError(message, error);
            if (log) {
                console.error(message, " -- ", error);
            }
            return Promise.reject(wrapped_error); 
        };
    };

    var typeset = function(element, text) {
        /**
         * Apply MathJax rendering to an element, and optionally set its text
         *
         * If MathJax is not available, make no changes.
         *
         * Returns the output any number of typeset elements, or undefined if
         * MathJax was not available.
         *
         * Parameters
         * ----------
         * element: Node, NodeList, or jQuery selection
         * text: option string
         */
        var $el = element.jquery ? element : $(element);
        if(arguments.length > 1){
            $el.text(text);
        }
        if(!window.MathJax){
            return;
        }
        $el.map(function(){
            // MathJax takes a DOM node: $.map makes `this` the context
            MathJax.Hub.Queue(["Typeset", MathJax.Hub, this]);
            try {
                MathJax.Hub.Queue(
                    ["Require", MathJax.Ajax, "[MathJax]/extensions/TeX/AMSmath.js"],
                    function() { MathJax.InputJax.TeX.resetEquationNumbers(); }
                );
            } catch (e) {
                console.error("Error queueing resetEquationNumbers:", e);
            }
        });
    };

    var parse_b64_data_uri = function(uri) {
        /**
         * Parses a base64 encoded data-uri to extract mimetype and the
         * base64 string.
         *
         * For example, given 'data:image/png;base64,iVBORw', it will return
         * ["image/png", "iVBORw"]
         *
         * Parameters
         */
        // For performance reasons, the non-greedy ? qualifiers are crucial so
        // that the matcher stops early on big blobs. Without them, it will try
        // to match the whole blob which can take ages
        var regex = /^data:(.+?\/.+?);base64,/;
        var matches = uri.match(regex);
        var mime = matches[1];
        // matches[0] contains the whole data-uri prefix
        var b64_data = uri.slice(matches[0].length);
        return [mime, b64_data];
    };
    
    var time = {};
    time.milliseconds = {};
    time.milliseconds.s = 1000;
    time.milliseconds.m = 60 * time.milliseconds.s;
    time.milliseconds.h = 60 * time.milliseconds.m;
    time.milliseconds.d = 24 * time.milliseconds.h;
    
    time.thresholds = {
        // moment.js thresholds in milliseconds
        s: moment.relativeTimeThreshold('s') * time.milliseconds.s,
        m: moment.relativeTimeThreshold('m') * time.milliseconds.m,
        h: moment.relativeTimeThreshold('h') * time.milliseconds.h,
        d: moment.relativeTimeThreshold('d') * time.milliseconds.d,
    };
    
    time.timeout_from_dt = function (dt) {
        /** compute a timeout based on dt
        
        input and output both in milliseconds
        
        use moment's relative time thresholds:
        
        - 10 seconds if in 'seconds ago' territory
        - 1 minute if in 'minutes ago'
        - 1 hour otherwise
        */
        if (dt < time.thresholds.s) {
            return 10 * time.milliseconds.s;
        } else if (dt < time.thresholds.m) {
            return time.milliseconds.m;
        } else {
            return time.milliseconds.h;
        }
    };

    var format_datetime = function(date) {
        var text = moment(date).fromNow();
        return text === 'a few seconds ago' ? 'seconds ago' : text;
    };

    var datetime_sort_helper = function(a, b, order) {
        if (moment(a).isBefore(moment(b))) {
            return (order == 1) ? -1 : 1;
        } else if (moment(a).isSame(moment(b))) {
            return 0;
        } else {
            return (order == 1) ? 1 : -1;
        }
    };
    
    /**
    source: https://github.com/sindresorhus/pretty-bytes
    The MIT License (MIT)

    Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)

    Permission is hereby granted, free of charge, to any person obtaining a copy
    of this software and associated documentation files (the "Software"), to deal
    in the Software without restriction, including without limitation the rights
    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the Software is
    furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in
    all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    THE SOFTWARE.
    **/
    var format_filesize = function(num) {
      if (num === undefined || num === null)
        return;

      var UNITS = ['B', 'kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];

      if (!Number.isFinite(num)) {
        console.error("Expected finite number, got ", typeof(num) + ": " + num);
      }

      var neg = num < 0;

      if (neg) {
        num = -num;
      }

      if (num < 1) {
        return (neg ? '-' : '') + num + ' B';
      }

      var exponent = Math.min(Math.floor(Math.log10(num) / 3), UNITS.length - 1);
      var numStr = Number((num / Math.pow(1000, exponent)).toPrecision(3));
      var unit = UNITS[exponent];

      return (neg ? '-' : '') + numStr + ' ' + unit;
    }

    // javascript stores text as utf16 and string indices use "code units",
    // which stores high-codepoint characters as "surrogate pairs",
    // which occupy two indices in the javascript string.
    // We need to translate cursor_pos in the protocol (in characters)
    // to js offset (with surrogate pairs taking two spots).
    function js_idx_to_char_idx (js_idx, text) {
        var char_idx = js_idx;
        for (var i = 0; i + 1 < text.length && i < js_idx; i++) {
            var char_code = text.charCodeAt(i);
            // check for surrogate pair
            if (char_code >= 0xD800 && char_code <= 0xDBFF) {
                var next_char_code = text.charCodeAt(i+1);
                if (next_char_code >= 0xDC00 && next_char_code <= 0xDFFF) {
                    char_idx--;
                    i++;
                }
            }
        }
        return char_idx;
    }

    function char_idx_to_js_idx (char_idx, text) {
        var js_idx = char_idx;
        for (var i = 0; i + 1 < text.length && i < js_idx; i++) {
            var char_code = text.charCodeAt(i);
            // check for surrogate pair
            if (char_code >= 0xD800 && char_code <= 0xDBFF) {
                var next_char_code = text.charCodeAt(i+1);
                if (next_char_code >= 0xDC00 && next_char_code <= 0xDFFF) {
                    js_idx++;
                    i++;
                }
            }
        }
        return js_idx;
    }

    if ('𝐚'.length === 1) {
        // If javascript fixes string indices of non-BMP characters,
        // don't keep shifting offsets to compensate for surrogate pairs
        char_idx_to_js_idx = js_idx_to_char_idx = function (idx, text) { return idx; };
    }

    // Test if a drag'n'drop event contains a file (as opposed to an HTML
    // element/text from the document)
    var dnd_contain_file = function(event) {
        // As per the HTML5 drag'n'drop spec, the dataTransfer.types should
        // contain one "Files" type if a file is being dragged
        // https://www.w3.org/TR/2011/WD-html5-20110113/dnd.html#dom-datatransfer-types
        if (event.dataTransfer.types) {
            for (var i = 0; i < event.dataTransfer.types.length; i++) {
                if (event.dataTransfer.types[i] == "Files") {
                    return true;
                }
            }
        }
        return false;
    };

    var throttle = function(fn, time) {
      var pending = null;

      return function () {
        if (pending) return;
        pending = setTimeout(run, time);

        return function () {
          clearTimeout(pending);
          pending = null;
        }
      }

      function run () {
        pending = null;
        fn();
      }
    }
    
    var change_favicon = function (src) {
        var link = document.createElement('link'),
            oldLink = document.getElementById('favicon');
        link.id = 'favicon';
        link.type = 'image/x-icon';
        link.rel = 'shortcut icon';
        link.href = utils.url_path_join(utils.get_body_data('baseUrl'), src);
        if (oldLink && (link.href === oldLink.href)) {
            // This favicon is already set, don't modify the DOM.
            return;
        }
        if (oldLink) document.head.removeChild(oldLink);
        document.head.appendChild(link);
    };

    var utils = {
        throttle: throttle,
        is_loaded: is_loaded,
        load_extension: load_extension,
        load_extensions: load_extensions,
        filter_extensions: filter_extensions,
        load_extensions_from_config: load_extensions_from_config,
        regex_split : regex_split,
        uuid : uuid,
        fixConsole : fixConsole,
        fixCarriageReturn : fixCarriageReturn,
        fixBackspace : fixBackspace,
        fixOverwrittenChars: fixOverwrittenChars,
        autoLinkUrls : autoLinkUrls,
        points_to_pixels : points_to_pixels,
        get_body_data : get_body_data,
        parse_url : parse_url,
        url_path_split : url_path_split,
        url_path_join : url_path_join,
        url_join_encode : url_join_encode,
        encode_uri_components : encode_uri_components,
        splitext : splitext,
        escape_html : escape_html,
        always_new : always_new,
        to_absolute_cursor_pos : to_absolute_cursor_pos,
        from_absolute_cursor_pos : from_absolute_cursor_pos,
        browser : browser,
        platform: platform,
        get_url_param: get_url_param,
        is_or_has : is_or_has,
        is_focused : is_focused,
        mergeopt: mergeopt,
        requireCodeMirrorMode : requireCodeMirrorMode,
        XHR_ERROR : XHR_ERROR,
        ajax : ajax,
        ajax_error_msg : ajax_error_msg,
        log_ajax_error : log_ajax_error,
        wrap_ajax_error : wrap_ajax_error,
        promising_ajax : promising_ajax,
        WrappedError: WrappedError,
        load_class: load_class,
        resolve_promises_dict: resolve_promises_dict,
        reject: reject,
        typeset: typeset,
        parse_b64_data_uri: parse_b64_data_uri,
        time: time,
        format_datetime: format_datetime,
        format_filesize: format_filesize,
        datetime_sort_helper: datetime_sort_helper,
        dnd_contain_file: dnd_contain_file,
        js_idx_to_char_idx: js_idx_to_char_idx,
        char_idx_to_js_idx: char_idx_to_js_idx,
        _ansispan:_ansispan,
        change_favicon: change_favicon
    };

    return utils;
}); 

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.

// Give us an object to bind all events to. This object should be created
// before all other objects so it exists when others register event handlers.
// To register an event handler:
//
// requirejs(['base/js/events'], function (events) {
//     events.on("event.Namespace", function () { do_stuff(); });
// });

define('base/js/events',['jquery', 'base/js/namespace'], function($, Jupyter) {
    "use strict";
    
    // Events singleton
    if (!window._Events) {
        window._Events = function () {};
        window._events = new window._Events();
    }
    
    // Backwards compatibility.
    Jupyter.Events = window._Events;
    Jupyter.events = window._events;
    
    var events = $([window._events]);

    // catch and log errors in triggered events
    events._original_trigger = events.trigger;
    events.trigger = function (name, data) {
        try {
            this._original_trigger.apply(this, arguments);
        } catch (e) {
            console.error("Exception in event handler for " + name, e, arguments);
        }
    }
    return events;
});

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.

define('base/js/page',[
    'jquery',
    'base/js/events',
], function($, events){
    "use strict";

    var Page = function (header_div_selector, site_div_selector) {
        /**
        * Constructor
        *
        * Parameters
        * header_div_selector: string
        * site_div_selector: string
        */
        this.header_div_element = $(header_div_selector || 'div#header');
        this.site_div_element = $(site_div_selector || 'div#site');

        this.bind_events();
    };

    Page.prototype.bind_events = function () {
        // resize site on:
        // - window resize
        // - header change
        // - page load
        var _handle_resize = $.proxy(this._resize_site, this);

        $(window).resize(_handle_resize);

        // On document ready, resize codemirror.
        $(document).ready(_handle_resize);
        events.on('resize-header.Page', _handle_resize);
    };

    Page.prototype.show = function () {
        /**
         * The header and site divs start out hidden to prevent FLOUC.
         * Main scripts should call this method after styling everything.
         */
        this.show_header();
        this.show_site();
    };

    Page.prototype.show_header = function () {
        /**
         * The header and site divs start out hidden to prevent FLOUC.
         * Main scripts should call this method after styling everything.
         */
        this.header_div_element.css('display','block');
    };

    Page.prototype.show_site = function () {
        /**
         * The header and site divs start out hidden to prevent FLOUC.
         * Main scripts should call this method after styling everything.
         */
        this.site_div_element.css('display', 'block');
        this._resize_site();
    };

    Page.prototype._resize_site = function(e) {
        /**
         * Update the site's size.
         */

        // In the case an event is passed in, only trigger if the event does
        // *not* have a target DOM node (i.e., it is not bubbling up). See
        // https://bugs.jquery.com/ticket/9841#comment:8
        if (!(e && e.target && e.target.tagName)) {
            $('div#site').height($(window).height() - $('#header').height());
        }
    };

    return {'Page': Page};
});

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.

define('services/config',[
    'base/js/utils',
    ],
function(utils) {
    "use strict";
    var ConfigSection = function(section_name, options) {
        this.section_name = section_name;
        this.base_url = options.base_url;
        this.data = {};
        
        var that = this;
        
        /* .loaded is a promise, fulfilled the first time the config is loaded
         * from the server. Code can do:
         *      conf.loaded.then(function() { ... using conf.data ... });
         */
        this._one_load_finished = false;
        this.loaded = new Promise(function(resolve, reject) {
            that._finish_firstload = resolve;
        });
    };

    ConfigSection.prototype.api_url = function() {
        return utils.url_path_join(this.base_url, 'api/config',
            utils.encode_uri_components(this.section_name));
    };
    
    ConfigSection.prototype._load_done = function() {
        if (!this._one_load_finished) {
            this._one_load_finished = true;
            this._finish_firstload();
        }
    };
    
    ConfigSection.prototype.load = function() {
        var that = this;
        return utils.promising_ajax(this.api_url(), {
            cache: false,
            type: "GET",
            dataType: "json",
        }).then(function(data) {
            that.data = data;
            that._load_done();
            return data;
        });
    };
    
    /**
     * Modify the config values stored. Update the local data immediately,
     * send the change to the server, and use the updated data from the server
     * when the reply comes.
     */
    ConfigSection.prototype.update = function(newdata) {
        $.extend(true, this.data, newdata);  // true -> recursive update
        
        var that = this;
        return utils.promising_ajax(this.api_url(), {
            processData: false,
            type : "PATCH",
            data: JSON.stringify(newdata),
            dataType : "json",
            contentType: 'application/json',
        }).then(function(data) {
            that.data = data;
            that._load_done();
            return data;
        });
    };
    
    
    var ConfigWithDefaults = function(section, defaults, classname) {
        this.section = section;
        this.defaults = defaults;
        this.classname = classname;
    };
    
    ConfigWithDefaults.prototype._class_data = function() {
        if (this.classname) {
            return this.section.data[this.classname] || {};
        } else {
            return this.section.data;
        }
    };
    
    /**
     * Wait for config to have loaded, then get a value or the default.
     * Returns a promise.
     */
    ConfigWithDefaults.prototype.get = function(key) {
        var that = this;
        return this.section.loaded.then(function() {
            return that.get_sync(key);
        });
    };
    
    /**
     * Return a config value. If config is not yet loaded, return the default
     * instead of waiting for it to load.
     */
    ConfigWithDefaults.prototype.get_sync = function(key) {
        var data = this._class_data();
        if (key === undefined) {
            // no key specified, return full config data
            return $.extend(true, {}, this.defaults, data);
        }

        var value = data[key];
        if (value !== undefined) {
            if (typeof value == 'object') {
                // merge with defaults if it's an object
                return $.extend(true, {}, this.defaults[key], value);
            } else {
                return value;
            }
        }
        return this.defaults[key];
    };
    
    /**
     * Set a config value. Send the update to the server, and change our
     * local copy of the data immediately.
     * Returns a promise which is fulfilled when the server replies to the
     * change.
     */
     ConfigWithDefaults.prototype.set = function(key, value) {
         var d = {};
         d[key] = value;
         if (this.classname) {
            var d2 = {};
            d2[this.classname] = d;
            return this.section.update(d2);
        } else {
            return this.section.update(d);
        }
    };
    
    return {ConfigSection: ConfigSection,
            ConfigWithDefaults: ConfigWithDefaults,
           };

});

/**
 * @preserve jed.js https://github.com/SlexAxton/Jed
 */
/*
-----------
A gettext compatible i18n library for modern JavaScript Applications

by Alex Sexton - AlexSexton [at] gmail - @SlexAxton

MIT License

A jQuery Foundation project - requires CLA to contribute -
https://contribute.jquery.org/CLA/



Jed offers the entire applicable GNU gettext spec'd set of
functions, but also offers some nicer wrappers around them.
The api for gettext was written for a language with no function
overloading, so Jed allows a little more of that.

Many thanks to Joshua I. Miller - unrtst@cpan.org - who wrote
gettext.js back in 2008. I was able to vet a lot of my ideas
against his. I also made sure Jed passed against his tests
in order to offer easy upgrades -- jsgettext.berlios.de
*/
(function (root, undef) {

  // Set up some underscore-style functions, if you already have
  // underscore, feel free to delete this section, and use it
  // directly, however, the amount of functions used doesn't
  // warrant having underscore as a full dependency.
  // Underscore 1.3.0 was used to port and is licensed
  // under the MIT License by Jeremy Ashkenas.
  var ArrayProto    = Array.prototype,
      ObjProto      = Object.prototype,
      slice         = ArrayProto.slice,
      hasOwnProp    = ObjProto.hasOwnProperty,
      nativeForEach = ArrayProto.forEach,
      breaker       = {};

  // We're not using the OOP style _ so we don't need the
  // extra level of indirection. This still means that you
  // sub out for real `_` though.
  var _ = {
    forEach : function( obj, iterator, context ) {
      var i, l, key;
      if ( obj === null ) {
        return;
      }

      if ( nativeForEach && obj.forEach === nativeForEach ) {
        obj.forEach( iterator, context );
      }
      else if ( obj.length === +obj.length ) {
        for ( i = 0, l = obj.length; i < l; i++ ) {
          if ( i in obj && iterator.call( context, obj[i], i, obj ) === breaker ) {
            return;
          }
        }
      }
      else {
        for ( key in obj) {
          if ( hasOwnProp.call( obj, key ) ) {
            if ( iterator.call (context, obj[key], key, obj ) === breaker ) {
              return;
            }
          }
        }
      }
    },
    extend : function( obj ) {
      this.forEach( slice.call( arguments, 1 ), function ( source ) {
        for ( var prop in source ) {
          obj[prop] = source[prop];
        }
      });
      return obj;
    }
  };
  // END Miniature underscore impl

  // Jed is a constructor function
  var Jed = function ( options ) {
    // Some minimal defaults
    this.defaults = {
      "locale_data" : {
        "messages" : {
          "" : {
            "domain"       : "messages",
            "lang"         : "en",
            "plural_forms" : "nplurals=2; plural=(n != 1);"
          }
          // There are no default keys, though
        }
      },
      // The default domain if one is missing
      "domain" : "messages",
      // enable debug mode to log untranslated strings to the console
      "debug" : false
    };

    // Mix in the sent options with the default options
    this.options = _.extend( {}, this.defaults, options );
    this.textdomain( this.options.domain );

    if ( options.domain && ! this.options.locale_data[ this.options.domain ] ) {
      throw new Error('Text domain set to non-existent domain: `' + options.domain + '`');
    }
  };

  // The gettext spec sets this character as the default
  // delimiter for context lookups.
  // e.g.: context\u0004key
  // If your translation company uses something different,
  // just change this at any time and it will use that instead.
  Jed.context_delimiter = String.fromCharCode( 4 );

  function getPluralFormFunc ( plural_form_string ) {
    return Jed.PF.compile( plural_form_string || "nplurals=2; plural=(n != 1);");
  }

  function Chain( key, i18n ){
    this._key = key;
    this._i18n = i18n;
  }

  // Create a chainable api for adding args prettily
  _.extend( Chain.prototype, {
    onDomain : function ( domain ) {
      this._domain = domain;
      return this;
    },
    withContext : function ( context ) {
      this._context = context;
      return this;
    },
    ifPlural : function ( num, pkey ) {
      this._val = num;
      this._pkey = pkey;
      return this;
    },
    fetch : function ( sArr ) {
      if ( {}.toString.call( sArr ) != '[object Array]' ) {
        sArr = [].slice.call(arguments, 0);
      }
      return ( sArr && sArr.length ? Jed.sprintf : function(x){ return x; } )(
        this._i18n.dcnpgettext(this._domain, this._context, this._key, this._pkey, this._val),
        sArr
      );
    }
  });

  // Add functions to the Jed prototype.
  // These will be the functions on the object that's returned
  // from creating a `new Jed()`
  // These seem redundant, but they gzip pretty well.
  _.extend( Jed.prototype, {
    // The sexier api start point
    translate : function ( key ) {
      return new Chain( key, this );
    },

    textdomain : function ( domain ) {
      if ( ! domain ) {
        return this._textdomain;
      }
      this._textdomain = domain;
    },

    gettext : function ( key ) {
      return this.dcnpgettext.call( this, undef, undef, key );
    },

    dgettext : function ( domain, key ) {
     return this.dcnpgettext.call( this, domain, undef, key );
    },

    dcgettext : function ( domain , key /*, category */ ) {
      // Ignores the category anyways
      return this.dcnpgettext.call( this, domain, undef, key );
    },

    ngettext : function ( skey, pkey, val ) {
      return this.dcnpgettext.call( this, undef, undef, skey, pkey, val );
    },

    dngettext : function ( domain, skey, pkey, val ) {
      return this.dcnpgettext.call( this, domain, undef, skey, pkey, val );
    },

    dcngettext : function ( domain, skey, pkey, val/*, category */) {
      return this.dcnpgettext.call( this, domain, undef, skey, pkey, val );
    },

    pgettext : function ( context, key ) {
      return this.dcnpgettext.call( this, undef, context, key );
    },

    dpgettext : function ( domain, context, key ) {
      return this.dcnpgettext.call( this, domain, context, key );
    },

    dcpgettext : function ( domain, context, key/*, category */) {
      return this.dcnpgettext.call( this, domain, context, key );
    },

    npgettext : function ( context, skey, pkey, val ) {
      return this.dcnpgettext.call( this, undef, context, skey, pkey, val );
    },

    dnpgettext : function ( domain, context, skey, pkey, val ) {
      return this.dcnpgettext.call( this, domain, context, skey, pkey, val );
    },

    // The most fully qualified gettext function. It has every option.
    // Since it has every option, we can use it from every other method.
    // This is the bread and butter.
    // Technically there should be one more argument in this function for 'Category',
    // but since we never use it, we might as well not waste the bytes to define it.
    dcnpgettext : function ( domain, context, singular_key, plural_key, val ) {
      // Set some defaults

      plural_key = plural_key || singular_key;

      // Use the global domain default if one
      // isn't explicitly passed in
      domain = domain || this._textdomain;

      var fallback;

      // Handle special cases

      // No options found
      if ( ! this.options ) {
        // There's likely something wrong, but we'll return the correct key for english
        // We do this by instantiating a brand new Jed instance with the default set
        // for everything that could be broken.
        fallback = new Jed();
        return fallback.dcnpgettext.call( fallback, undefined, undefined, singular_key, plural_key, val );
      }

      // No translation data provided
      if ( ! this.options.locale_data ) {
        throw new Error('No locale data provided.');
      }

      if ( ! this.options.locale_data[ domain ] ) {
        throw new Error('Domain `' + domain + '` was not found.');
      }

      if ( ! this.options.locale_data[ domain ][ "" ] ) {
        throw new Error('No locale meta information provided.');
      }

      // Make sure we have a truthy key. Otherwise we might start looking
      // into the empty string key, which is the options for the locale
      // data.
      if ( ! singular_key ) {
        throw new Error('No translation key found.');
      }

      var key  = context ? context + Jed.context_delimiter + singular_key : singular_key,
          locale_data = this.options.locale_data,
          dict = locale_data[ domain ],
          defaultConf = (locale_data.messages || this.defaults.locale_data.messages)[""],
          pluralForms = dict[""].plural_forms || dict[""]["Plural-Forms"] || dict[""]["plural-forms"] || defaultConf.plural_forms || defaultConf["Plural-Forms"] || defaultConf["plural-forms"],
          val_list,
          res;

      var val_idx;
      if (val === undefined) {
        // No value passed in; assume singular key lookup.
        val_idx = 0;

      } else {
        // Value has been passed in; use plural-forms calculations.

        // Handle invalid numbers, but try casting strings for good measure
        if ( typeof val != 'number' ) {
          val = parseInt( val, 10 );

          if ( isNaN( val ) ) {
            throw new Error('The number that was passed in is not a number.');
          }
        }

        val_idx = getPluralFormFunc(pluralForms)(val);
      }

      // Throw an error if a domain isn't found
      if ( ! dict ) {
        throw new Error('No domain named `' + domain + '` could be found.');
      }

      val_list = dict[ key ];

      // If there is no match, then revert back to
      // english style singular/plural with the keys passed in.
      if ( ! val_list || val_idx > val_list.length ) {
        if (this.options.missing_key_callback) {
          this.options.missing_key_callback(key, domain);
        }
        res = [ singular_key, plural_key ];

        // collect untranslated strings
        if (this.options.debug===true) {
          console.log(res[ getPluralFormFunc(pluralForms)( val ) ]);
        }
        return res[ getPluralFormFunc()( val ) ];
      }

      res = val_list[ val_idx ];

      // This includes empty strings on purpose
      if ( ! res  ) {
        res = [ singular_key, plural_key ];
        return res[ getPluralFormFunc()( val ) ];
      }
      return res;
    }
  });


  // We add in sprintf capabilities for post translation value interolation
  // This is not internally used, so you can remove it if you have this
  // available somewhere else, or want to use a different system.

  // We _slightly_ modify the normal sprintf behavior to more gracefully handle
  // undefined values.

  /**
   sprintf() for JavaScript 0.7-beta1
   http://www.diveintojavascript.com/projects/javascript-sprintf

   Copyright (c) Alexandru Marasteanu <alexaholic [at) gmail (dot] com>
   All rights reserved.

   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions are met:
       * Redistributions of source code must retain the above copyright
         notice, this list of conditions and the following disclaimer.
       * Redistributions in binary form must reproduce the above copyright
         notice, this list of conditions and the following disclaimer in the
         documentation and/or other materials provided with the distribution.
       * Neither the name of sprintf() for JavaScript nor the
         names of its contributors may be used to endorse or promote products
         derived from this software without specific prior written permission.

   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
   ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   DISCLAIMED. IN NO EVENT SHALL Alexandru Marasteanu BE LIABLE FOR ANY
   DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
  var sprintf = (function() {
    function get_type(variable) {
      return Object.prototype.toString.call(variable).slice(8, -1).toLowerCase();
    }
    function str_repeat(input, multiplier) {
      for (var output = []; multiplier > 0; output[--multiplier] = input) {/* do nothing */}
      return output.join('');
    }

    var str_format = function() {
      if (!str_format.cache.hasOwnProperty(arguments[0])) {
        str_format.cache[arguments[0]] = str_format.parse(arguments[0]);
      }
      return str_format.format.call(null, str_format.cache[arguments[0]], arguments);
    };

    str_format.format = function(parse_tree, argv) {
      var cursor = 1, tree_length = parse_tree.length, node_type = '', arg, output = [], i, k, match, pad, pad_character, pad_length;
      for (i = 0; i < tree_length; i++) {
        node_type = get_type(parse_tree[i]);
        if (node_type === 'string') {
          output.push(parse_tree[i]);
        }
        else if (node_type === 'array') {
          match = parse_tree[i]; // convenience purposes only
          if (match[2]) { // keyword argument
            arg = argv[cursor];
            for (k = 0; k < match[2].length; k++) {
              if (!arg.hasOwnProperty(match[2][k])) {
                throw(sprintf('[sprintf] property "%s" does not exist', match[2][k]));
              }
              arg = arg[match[2][k]];
            }
          }
          else if (match[1]) { // positional argument (explicit)
            arg = argv[match[1]];
          }
          else { // positional argument (implicit)
            arg = argv[cursor++];
          }

          if (/[^s]/.test(match[8]) && (get_type(arg) != 'number')) {
            throw(sprintf('[sprintf] expecting number but found %s', get_type(arg)));
          }

          // Jed EDIT
          if ( typeof arg == 'undefined' || arg === null ) {
            arg = '';
          }
          // Jed EDIT

          switch (match[8]) {
            case 'b': arg = arg.toString(2); break;
            case 'c': arg = String.fromCharCode(arg); break;
            case 'd': arg = parseInt(arg, 10); break;
            case 'e': arg = match[7] ? arg.toExponential(match[7]) : arg.toExponential(); break;
            case 'f': arg = match[7] ? parseFloat(arg).toFixed(match[7]) : parseFloat(arg); break;
            case 'o': arg = arg.toString(8); break;
            case 's': arg = ((arg = String(arg)) && match[7] ? arg.substring(0, match[7]) : arg); break;
            case 'u': arg = Math.abs(arg); break;
            case 'x': arg = arg.toString(16); break;
            case 'X': arg = arg.toString(16).toUpperCase(); break;
          }
          arg = (/[def]/.test(match[8]) && match[3] && arg >= 0 ? '+'+ arg : arg);
          pad_character = match[4] ? match[4] == '0' ? '0' : match[4].charAt(1) : ' ';
          pad_length = match[6] - String(arg).length;
          pad = match[6] ? str_repeat(pad_character, pad_length) : '';
          output.push(match[5] ? arg + pad : pad + arg);
        }
      }
      return output.join('');
    };

    str_format.cache = {};

    str_format.parse = function(fmt) {
      var _fmt = fmt, match = [], parse_tree = [], arg_names = 0;
      while (_fmt) {
        if ((match = /^[^\x25]+/.exec(_fmt)) !== null) {
          parse_tree.push(match[0]);
        }
        else if ((match = /^\x25{2}/.exec(_fmt)) !== null) {
          parse_tree.push('%');
        }
        else if ((match = /^\x25(?:([1-9]\d*)\$|\(([^\)]+)\))?(\+)?(0|'[^$])?(-)?(\d+)?(?:\.(\d+))?([b-fosuxX])/.exec(_fmt)) !== null) {
          if (match[2]) {
            arg_names |= 1;
            var field_list = [], replacement_field = match[2], field_match = [];
            if ((field_match = /^([a-z_][a-z_\d]*)/i.exec(replacement_field)) !== null) {
              field_list.push(field_match[1]);
              while ((replacement_field = replacement_field.substring(field_match[0].length)) !== '') {
                if ((field_match = /^\.([a-z_][a-z_\d]*)/i.exec(replacement_field)) !== null) {
                  field_list.push(field_match[1]);
                }
                else if ((field_match = /^\[(\d+)\]/.exec(replacement_field)) !== null) {
                  field_list.push(field_match[1]);
                }
                else {
                  throw('[sprintf] huh?');
                }
              }
            }
            else {
              throw('[sprintf] huh?');
            }
            match[2] = field_list;
          }
          else {
            arg_names |= 2;
          }
          if (arg_names === 3) {
            throw('[sprintf] mixing positional and named placeholders is not (yet) supported');
          }
          parse_tree.push(match);
        }
        else {
          throw('[sprintf] huh?');
        }
        _fmt = _fmt.substring(match[0].length);
      }
      return parse_tree;
    };

    return str_format;
  })();

  var vsprintf = function(fmt, argv) {
    argv.unshift(fmt);
    return sprintf.apply(null, argv);
  };

  Jed.parse_plural = function ( plural_forms, n ) {
    plural_forms = plural_forms.replace(/n/g, n);
    return Jed.parse_expression(plural_forms);
  };

  Jed.sprintf = function ( fmt, args ) {
    if ( {}.toString.call( args ) == '[object Array]' ) {
      return vsprintf( fmt, [].slice.call(args) );
    }
    return sprintf.apply(this, [].slice.call(arguments) );
  };

  Jed.prototype.sprintf = function () {
    return Jed.sprintf.apply(this, arguments);
  };
  // END sprintf Implementation

  // Start the Plural forms section
  // This is a full plural form expression parser. It is used to avoid
  // running 'eval' or 'new Function' directly against the plural
  // forms.
  //
  // This can be important if you get translations done through a 3rd
  // party vendor. I encourage you to use this instead, however, I
  // also will provide a 'precompiler' that you can use at build time
  // to output valid/safe function representations of the plural form
  // expressions. This means you can build this code out for the most
  // part.
  Jed.PF = {};

  Jed.PF.parse = function ( p ) {
    var plural_str = Jed.PF.extractPluralExpr( p );
    return Jed.PF.parser.parse.call(Jed.PF.parser, plural_str);
  };

  Jed.PF.compile = function ( p ) {
    // Handle trues and falses as 0 and 1
    function imply( val ) {
      return (val === true ? 1 : val ? val : 0);
    }

    var ast = Jed.PF.parse( p );
    return function ( n ) {
      return imply( Jed.PF.interpreter( ast )( n ) );
    };
  };

  Jed.PF.interpreter = function ( ast ) {
    return function ( n ) {
      var res;
      switch ( ast.type ) {
        case 'GROUP':
          return Jed.PF.interpreter( ast.expr )( n );
        case 'TERNARY':
          if ( Jed.PF.interpreter( ast.expr )( n ) ) {
            return Jed.PF.interpreter( ast.truthy )( n );
          }
          return Jed.PF.interpreter( ast.falsey )( n );
        case 'OR':
          return Jed.PF.interpreter( ast.left )( n ) || Jed.PF.interpreter( ast.right )( n );
        case 'AND':
          return Jed.PF.interpreter( ast.left )( n ) && Jed.PF.interpreter( ast.right )( n );
        case 'LT':
          return Jed.PF.interpreter( ast.left )( n ) < Jed.PF.interpreter( ast.right )( n );
        case 'GT':
          return Jed.PF.interpreter( ast.left )( n ) > Jed.PF.interpreter( ast.right )( n );
        case 'LTE':
          return Jed.PF.interpreter( ast.left )( n ) <= Jed.PF.interpreter( ast.right )( n );
        case 'GTE':
          return Jed.PF.interpreter( ast.left )( n ) >= Jed.PF.interpreter( ast.right )( n );
        case 'EQ':
          return Jed.PF.interpreter( ast.left )( n ) == Jed.PF.interpreter( ast.right )( n );
        case 'NEQ':
          return Jed.PF.interpreter( ast.left )( n ) != Jed.PF.interpreter( ast.right )( n );
        case 'MOD':
          return Jed.PF.interpreter( ast.left )( n ) % Jed.PF.interpreter( ast.right )( n );
        case 'VAR':
          return n;
        case 'NUM':
          return ast.val;
        default:
          throw new Error("Invalid Token found.");
      }
    };
  };

  Jed.PF.extractPluralExpr = function ( p ) {
    // trim first
    p = p.replace(/^\s\s*/, '').replace(/\s\s*$/, '');

    if (! /;\s*$/.test(p)) {
      p = p.concat(';');
    }

    var nplurals_re = /nplurals\=(\d+);/,
        plural_re = /plural\=(.*);/,
        nplurals_matches = p.match( nplurals_re ),
        res = {},
        plural_matches;

    // Find the nplurals number
    if ( nplurals_matches.length > 1 ) {
      res.nplurals = nplurals_matches[1];
    }
    else {
      throw new Error('nplurals not found in plural_forms string: ' + p );
    }

    // remove that data to get to the formula
    p = p.replace( nplurals_re, "" );
    plural_matches = p.match( plural_re );

    if (!( plural_matches && plural_matches.length > 1 ) ) {
      throw new Error('`plural` expression not found: ' + p);
    }
    return plural_matches[ 1 ];
  };

  /* Jison generated parser */
  Jed.PF.parser = (function(){

var parser = {trace: function trace() { },
yy: {},
symbols_: {"error":2,"expressions":3,"e":4,"EOF":5,"?":6,":":7,"||":8,"&&":9,"<":10,"<=":11,">":12,">=":13,"!=":14,"==":15,"%":16,"(":17,")":18,"n":19,"NUMBER":20,"$accept":0,"$end":1},
terminals_: {2:"error",5:"EOF",6:"?",7:":",8:"||",9:"&&",10:"<",11:"<=",12:">",13:">=",14:"!=",15:"==",16:"%",17:"(",18:")",19:"n",20:"NUMBER"},
productions_: [0,[3,2],[4,5],[4,3],[4,3],[4,3],[4,3],[4,3],[4,3],[4,3],[4,3],[4,3],[4,3],[4,1],[4,1]],
performAction: function anonymous(yytext,yyleng,yylineno,yy,yystate,$$,_$) {

var $0 = $$.length - 1;
switch (yystate) {
case 1: return { type : 'GROUP', expr: $$[$0-1] };
break;
case 2:this.$ = { type: 'TERNARY', expr: $$[$0-4], truthy : $$[$0-2], falsey: $$[$0] };
break;
case 3:this.$ = { type: "OR", left: $$[$0-2], right: $$[$0] };
break;
case 4:this.$ = { type: "AND", left: $$[$0-2], right: $$[$0] };
break;
case 5:this.$ = { type: 'LT', left: $$[$0-2], right: $$[$0] };
break;
case 6:this.$ = { type: 'LTE', left: $$[$0-2], right: $$[$0] };
break;
case 7:this.$ = { type: 'GT', left: $$[$0-2], right: $$[$0] };
break;
case 8:this.$ = { type: 'GTE', left: $$[$0-2], right: $$[$0] };
break;
case 9:this.$ = { type: 'NEQ', left: $$[$0-2], right: $$[$0] };
break;
case 10:this.$ = { type: 'EQ', left: $$[$0-2], right: $$[$0] };
break;
case 11:this.$ = { type: 'MOD', left: $$[$0-2], right: $$[$0] };
break;
case 12:this.$ = { type: 'GROUP', expr: $$[$0-1] };
break;
case 13:this.$ = { type: 'VAR' };
break;
case 14:this.$ = { type: 'NUM', val: Number(yytext) };
break;
}
},
table: [{3:1,4:2,17:[1,3],19:[1,4],20:[1,5]},{1:[3]},{5:[1,6],6:[1,7],8:[1,8],9:[1,9],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16]},{4:17,17:[1,3],19:[1,4],20:[1,5]},{5:[2,13],6:[2,13],7:[2,13],8:[2,13],9:[2,13],10:[2,13],11:[2,13],12:[2,13],13:[2,13],14:[2,13],15:[2,13],16:[2,13],18:[2,13]},{5:[2,14],6:[2,14],7:[2,14],8:[2,14],9:[2,14],10:[2,14],11:[2,14],12:[2,14],13:[2,14],14:[2,14],15:[2,14],16:[2,14],18:[2,14]},{1:[2,1]},{4:18,17:[1,3],19:[1,4],20:[1,5]},{4:19,17:[1,3],19:[1,4],20:[1,5]},{4:20,17:[1,3],19:[1,4],20:[1,5]},{4:21,17:[1,3],19:[1,4],20:[1,5]},{4:22,17:[1,3],19:[1,4],20:[1,5]},{4:23,17:[1,3],19:[1,4],20:[1,5]},{4:24,17:[1,3],19:[1,4],20:[1,5]},{4:25,17:[1,3],19:[1,4],20:[1,5]},{4:26,17:[1,3],19:[1,4],20:[1,5]},{4:27,17:[1,3],19:[1,4],20:[1,5]},{6:[1,7],8:[1,8],9:[1,9],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16],18:[1,28]},{6:[1,7],7:[1,29],8:[1,8],9:[1,9],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16]},{5:[2,3],6:[2,3],7:[2,3],8:[2,3],9:[1,9],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16],18:[2,3]},{5:[2,4],6:[2,4],7:[2,4],8:[2,4],9:[2,4],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16],18:[2,4]},{5:[2,5],6:[2,5],7:[2,5],8:[2,5],9:[2,5],10:[2,5],11:[2,5],12:[2,5],13:[2,5],14:[2,5],15:[2,5],16:[1,16],18:[2,5]},{5:[2,6],6:[2,6],7:[2,6],8:[2,6],9:[2,6],10:[2,6],11:[2,6],12:[2,6],13:[2,6],14:[2,6],15:[2,6],16:[1,16],18:[2,6]},{5:[2,7],6:[2,7],7:[2,7],8:[2,7],9:[2,7],10:[2,7],11:[2,7],12:[2,7],13:[2,7],14:[2,7],15:[2,7],16:[1,16],18:[2,7]},{5:[2,8],6:[2,8],7:[2,8],8:[2,8],9:[2,8],10:[2,8],11:[2,8],12:[2,8],13:[2,8],14:[2,8],15:[2,8],16:[1,16],18:[2,8]},{5:[2,9],6:[2,9],7:[2,9],8:[2,9],9:[2,9],10:[2,9],11:[2,9],12:[2,9],13:[2,9],14:[2,9],15:[2,9],16:[1,16],18:[2,9]},{5:[2,10],6:[2,10],7:[2,10],8:[2,10],9:[2,10],10:[2,10],11:[2,10],12:[2,10],13:[2,10],14:[2,10],15:[2,10],16:[1,16],18:[2,10]},{5:[2,11],6:[2,11],7:[2,11],8:[2,11],9:[2,11],10:[2,11],11:[2,11],12:[2,11],13:[2,11],14:[2,11],15:[2,11],16:[2,11],18:[2,11]},{5:[2,12],6:[2,12],7:[2,12],8:[2,12],9:[2,12],10:[2,12],11:[2,12],12:[2,12],13:[2,12],14:[2,12],15:[2,12],16:[2,12],18:[2,12]},{4:30,17:[1,3],19:[1,4],20:[1,5]},{5:[2,2],6:[1,7],7:[2,2],8:[1,8],9:[1,9],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16],18:[2,2]}],
defaultActions: {6:[2,1]},
parseError: function parseError(str, hash) {
    throw new Error(str);
},
parse: function parse(input) {
    var self = this,
        stack = [0],
        vstack = [null], // semantic value stack
        lstack = [], // location stack
        table = this.table,
        yytext = '',
        yylineno = 0,
        yyleng = 0,
        recovering = 0,
        TERROR = 2,
        EOF = 1;

    //this.reductionCount = this.shiftCount = 0;

    this.lexer.setInput(input);
    this.lexer.yy = this.yy;
    this.yy.lexer = this.lexer;
    if (typeof this.lexer.yylloc == 'undefined')
        this.lexer.yylloc = {};
    var yyloc = this.lexer.yylloc;
    lstack.push(yyloc);

    if (typeof this.yy.parseError === 'function')
        this.parseError = this.yy.parseError;

    function popStack (n) {
        stack.length = stack.length - 2*n;
        vstack.length = vstack.length - n;
        lstack.length = lstack.length - n;
    }

    function lex() {
        var token;
        token = self.lexer.lex() || 1; // $end = 1
        // if token isn't its numeric value, convert
        if (typeof token !== 'number') {
            token = self.symbols_[token] || token;
        }
        return token;
    }

    var symbol, preErrorSymbol, state, action, a, r, yyval={},p,len,newState, expected;
    while (true) {
        // retreive state number from top of stack
        state = stack[stack.length-1];

        // use default actions if available
        if (this.defaultActions[state]) {
            action = this.defaultActions[state];
        } else {
            if (symbol == null)
                symbol = lex();
            // read action for current state and first input
            action = table[state] && table[state][symbol];
        }

        // handle parse error
        _handle_error:
        if (typeof action === 'undefined' || !action.length || !action[0]) {

            if (!recovering) {
                // Report error
                expected = [];
                for (p in table[state]) if (this.terminals_[p] && p > 2) {
                    expected.push("'"+this.terminals_[p]+"'");
                }
                var errStr = '';
                if (this.lexer.showPosition) {
                    errStr = 'Parse error on line '+(yylineno+1)+":\n"+this.lexer.showPosition()+"\nExpecting "+expected.join(', ') + ", got '" + this.terminals_[symbol]+ "'";
                } else {
                    errStr = 'Parse error on line '+(yylineno+1)+": Unexpected " +
                                  (symbol == 1 /*EOF*/ ? "end of input" :
                                              ("'"+(this.terminals_[symbol] || symbol)+"'"));
                }
                this.parseError(errStr,
                    {text: this.lexer.match, token: this.terminals_[symbol] || symbol, line: this.lexer.yylineno, loc: yyloc, expected: expected});
            }

            // just recovered from another error
            if (recovering == 3) {
                if (symbol == EOF) {
                    throw new Error(errStr || 'Parsing halted.');
                }

                // discard current lookahead and grab another
                yyleng = this.lexer.yyleng;
                yytext = this.lexer.yytext;
                yylineno = this.lexer.yylineno;
                yyloc = this.lexer.yylloc;
                symbol = lex();
            }

            // try to recover from error
            while (1) {
                // check for error recovery rule in this state
                if ((TERROR.toString()) in table[state]) {
                    break;
                }
                if (state == 0) {
                    throw new Error(errStr || 'Parsing halted.');
                }
                popStack(1);
                state = stack[stack.length-1];
            }

            preErrorSymbol = symbol; // save the lookahead token
            symbol = TERROR;         // insert generic error symbol as new lookahead
            state = stack[stack.length-1];
            action = table[state] && table[state][TERROR];
            recovering = 3; // allow 3 real symbols to be shifted before reporting a new error
        }

        // this shouldn't happen, unless resolve defaults are off
        if (action[0] instanceof Array && action.length > 1) {
            throw new Error('Parse Error: multiple actions possible at state: '+state+', token: '+symbol);
        }

        switch (action[0]) {

            case 1: // shift
                //this.shiftCount++;

                stack.push(symbol);
                vstack.push(this.lexer.yytext);
                lstack.push(this.lexer.yylloc);
                stack.push(action[1]); // push state
                symbol = null;
                if (!preErrorSymbol) { // normal execution/no error
                    yyleng = this.lexer.yyleng;
                    yytext = this.lexer.yytext;
                    yylineno = this.lexer.yylineno;
                    yyloc = this.lexer.yylloc;
                    if (recovering > 0)
                        recovering--;
                } else { // error just occurred, resume old lookahead f/ before error
                    symbol = preErrorSymbol;
                    preErrorSymbol = null;
                }
                break;

            case 2: // reduce
                //this.reductionCount++;

                len = this.productions_[action[1]][1];

                // perform semantic action
                yyval.$ = vstack[vstack.length-len]; // default to $$ = $1
                // default location, uses first token for firsts, last for lasts
                yyval._$ = {
                    first_line: lstack[lstack.length-(len||1)].first_line,
                    last_line: lstack[lstack.length-1].last_line,
                    first_column: lstack[lstack.length-(len||1)].first_column,
                    last_column: lstack[lstack.length-1].last_column
                };
                r = this.performAction.call(yyval, yytext, yyleng, yylineno, this.yy, action[1], vstack, lstack);

                if (typeof r !== 'undefined') {
                    return r;
                }

                // pop off stack
                if (len) {
                    stack = stack.slice(0,-1*len*2);
                    vstack = vstack.slice(0, -1*len);
                    lstack = lstack.slice(0, -1*len);
                }

                stack.push(this.productions_[action[1]][0]);    // push nonterminal (reduce)
                vstack.push(yyval.$);
                lstack.push(yyval._$);
                // goto new state = table[STATE][NONTERMINAL]
                newState = table[stack[stack.length-2]][stack[stack.length-1]];
                stack.push(newState);
                break;

            case 3: // accept
                return true;
        }

    }

    return true;
}};/* Jison generated lexer */
var lexer = (function(){

var lexer = ({EOF:1,
parseError:function parseError(str, hash) {
        if (this.yy.parseError) {
            this.yy.parseError(str, hash);
        } else {
            throw new Error(str);
        }
    },
setInput:function (input) {
        this._input = input;
        this._more = this._less = this.done = false;
        this.yylineno = this.yyleng = 0;
        this.yytext = this.matched = this.match = '';
        this.conditionStack = ['INITIAL'];
        this.yylloc = {first_line:1,first_column:0,last_line:1,last_column:0};
        return this;
    },
input:function () {
        var ch = this._input[0];
        this.yytext+=ch;
        this.yyleng++;
        this.match+=ch;
        this.matched+=ch;
        var lines = ch.match(/\n/);
        if (lines) this.yylineno++;
        this._input = this._input.slice(1);
        return ch;
    },
unput:function (ch) {
        this._input = ch + this._input;
        return this;
    },
more:function () {
        this._more = true;
        return this;
    },
pastInput:function () {
        var past = this.matched.substr(0, this.matched.length - this.match.length);
        return (past.length > 20 ? '...':'') + past.substr(-20).replace(/\n/g, "");
    },
upcomingInput:function () {
        var next = this.match;
        if (next.length < 20) {
            next += this._input.substr(0, 20-next.length);
        }
        return (next.substr(0,20)+(next.length > 20 ? '...':'')).replace(/\n/g, "");
    },
showPosition:function () {
        var pre = this.pastInput();
        var c = new Array(pre.length + 1).join("-");
        return pre + this.upcomingInput() + "\n" + c+"^";
    },
next:function () {
        if (this.done) {
            return this.EOF;
        }
        if (!this._input) this.done = true;

        var token,
            match,
            col,
            lines;
        if (!this._more) {
            this.yytext = '';
            this.match = '';
        }
        var rules = this._currentRules();
        for (var i=0;i < rules.length; i++) {
            match = this._input.match(this.rules[rules[i]]);
            if (match) {
                lines = match[0].match(/\n.*/g);
                if (lines) this.yylineno += lines.length;
                this.yylloc = {first_line: this.yylloc.last_line,
                               last_line: this.yylineno+1,
                               first_column: this.yylloc.last_column,
                               last_column: lines ? lines[lines.length-1].length-1 : this.yylloc.last_column + match[0].length}
                this.yytext += match[0];
                this.match += match[0];
                this.matches = match;
                this.yyleng = this.yytext.length;
                this._more = false;
                this._input = this._input.slice(match[0].length);
                this.matched += match[0];
                token = this.performAction.call(this, this.yy, this, rules[i],this.conditionStack[this.conditionStack.length-1]);
                if (token) return token;
                else return;
            }
        }
        if (this._input === "") {
            return this.EOF;
        } else {
            this.parseError('Lexical error on line '+(this.yylineno+1)+'. Unrecognized text.\n'+this.showPosition(),
                    {text: "", token: null, line: this.yylineno});
        }
    },
lex:function lex() {
        var r = this.next();
        if (typeof r !== 'undefined') {
            return r;
        } else {
            return this.lex();
        }
    },
begin:function begin(condition) {
        this.conditionStack.push(condition);
    },
popState:function popState() {
        return this.conditionStack.pop();
    },
_currentRules:function _currentRules() {
        return this.conditions[this.conditionStack[this.conditionStack.length-1]].rules;
    },
topState:function () {
        return this.conditionStack[this.conditionStack.length-2];
    },
pushState:function begin(condition) {
        this.begin(condition);
    }});
lexer.performAction = function anonymous(yy,yy_,$avoiding_name_collisions,YY_START) {

var YYSTATE=YY_START;
switch($avoiding_name_collisions) {
case 0:/* skip whitespace */
break;
case 1:return 20
break;
case 2:return 19
break;
case 3:return 8
break;
case 4:return 9
break;
case 5:return 6
break;
case 6:return 7
break;
case 7:return 11
break;
case 8:return 13
break;
case 9:return 10
break;
case 10:return 12
break;
case 11:return 14
break;
case 12:return 15
break;
case 13:return 16
break;
case 14:return 17
break;
case 15:return 18
break;
case 16:return 5
break;
case 17:return 'INVALID'
break;
}
};
lexer.rules = [/^\s+/,/^[0-9]+(\.[0-9]+)?\b/,/^n\b/,/^\|\|/,/^&&/,/^\?/,/^:/,/^<=/,/^>=/,/^</,/^>/,/^!=/,/^==/,/^%/,/^\(/,/^\)/,/^$/,/^./];
lexer.conditions = {"INITIAL":{"rules":[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17],"inclusive":true}};return lexer;})()
parser.lexer = lexer;
return parser;
})();
// End parser

  // Handle node, amd, and global systems
  if (typeof exports !== 'undefined') {
    if (typeof module !== 'undefined' && module.exports) {
      exports = module.exports = Jed;
    }
    exports.Jed = Jed;
  }
  else {
    if (typeof define === 'function' && define.amd) {
      define('jed',[],function() {
        return Jed;
      });
    }
    // Leak a global regardless of module system
    root['Jed'] = Jed;
  }

})(this);

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.

// Module to handle i18n ( Internationalization ) and translated UI

define('base/js/i18n',[
    'jed'
	], function(Jed) {
    "use strict";

    var i18n = new Jed(document.nbjs_translations);
    i18n._ = i18n.gettext;
    i18n.msg = i18n; // Just a place holder until the init promise resolves.

    return i18n;
});

/*!
 * Bootstrap v3.4.1 (https://getbootstrap.com/)
 * Copyright 2011-2019 Twitter, Inc.
 * Licensed under the MIT license
 */
if("undefined"==typeof jQuery)throw new Error("Bootstrap's JavaScript requires jQuery");!function(t){"use strict";var e=jQuery.fn.jquery.split(" ")[0].split(".");if(e[0]<2&&e[1]<9||1==e[0]&&9==e[1]&&e[2]<1||3<e[0])throw new Error("Bootstrap's JavaScript requires jQuery version 1.9.1 or higher, but lower than version 4")}(),function(n){"use strict";n.fn.emulateTransitionEnd=function(t){var e=!1,i=this;n(this).one("bsTransitionEnd",function(){e=!0});return setTimeout(function(){e||n(i).trigger(n.support.transition.end)},t),this},n(function(){n.support.transition=function o(){var t=document.createElement("bootstrap"),e={WebkitTransition:"webkitTransitionEnd",MozTransition:"transitionend",OTransition:"oTransitionEnd otransitionend",transition:"transitionend"};for(var i in e)if(t.style[i]!==undefined)return{end:e[i]};return!1}(),n.support.transition&&(n.event.special.bsTransitionEnd={bindType:n.support.transition.end,delegateType:n.support.transition.end,handle:function(t){if(n(t.target).is(this))return t.handleObj.handler.apply(this,arguments)}})})}(jQuery),function(s){"use strict";var e='[data-dismiss="alert"]',a=function(t){s(t).on("click",e,this.close)};a.VERSION="3.4.1",a.TRANSITION_DURATION=150,a.prototype.close=function(t){var e=s(this),i=e.attr("data-target");i||(i=(i=e.attr("href"))&&i.replace(/.*(?=#[^\s]*$)/,"")),i="#"===i?[]:i;var o=s(document).find(i);function n(){o.detach().trigger("closed.bs.alert").remove()}t&&t.preventDefault(),o.length||(o=e.closest(".alert")),o.trigger(t=s.Event("close.bs.alert")),t.isDefaultPrevented()||(o.removeClass("in"),s.support.transition&&o.hasClass("fade")?o.one("bsTransitionEnd",n).emulateTransitionEnd(a.TRANSITION_DURATION):n())};var t=s.fn.alert;s.fn.alert=function o(i){return this.each(function(){var t=s(this),e=t.data("bs.alert");e||t.data("bs.alert",e=new a(this)),"string"==typeof i&&e[i].call(t)})},s.fn.alert.Constructor=a,s.fn.alert.noConflict=function(){return s.fn.alert=t,this},s(document).on("click.bs.alert.data-api",e,a.prototype.close)}(jQuery),function(s){"use strict";var n=function(t,e){this.$element=s(t),this.options=s.extend({},n.DEFAULTS,e),this.isLoading=!1};function i(o){return this.each(function(){var t=s(this),e=t.data("bs.button"),i="object"==typeof o&&o;e||t.data("bs.button",e=new n(this,i)),"toggle"==o?e.toggle():o&&e.setState(o)})}n.VERSION="3.4.1",n.DEFAULTS={loadingText:"loading..."},n.prototype.setState=function(t){var e="disabled",i=this.$element,o=i.is("input")?"val":"html",n=i.data();t+="Text",null==n.resetText&&i.data("resetText",i[o]()),setTimeout(s.proxy(function(){i[o](null==n[t]?this.options[t]:n[t]),"loadingText"==t?(this.isLoading=!0,i.addClass(e).attr(e,e).prop(e,!0)):this.isLoading&&(this.isLoading=!1,i.removeClass(e).removeAttr(e).prop(e,!1))},this),0)},n.prototype.toggle=function(){var t=!0,e=this.$element.closest('[data-toggle="buttons"]');if(e.length){var i=this.$element.find("input");"radio"==i.prop("type")?(i.prop("checked")&&(t=!1),e.find(".active").removeClass("active"),this.$element.addClass("active")):"checkbox"==i.prop("type")&&(i.prop("checked")!==this.$element.hasClass("active")&&(t=!1),this.$element.toggleClass("active")),i.prop("checked",this.$element.hasClass("active")),t&&i.trigger("change")}else this.$element.attr("aria-pressed",!this.$element.hasClass("active")),this.$element.toggleClass("active")};var t=s.fn.button;s.fn.button=i,s.fn.button.Constructor=n,s.fn.button.noConflict=function(){return s.fn.button=t,this},s(document).on("click.bs.button.data-api",'[data-toggle^="button"]',function(t){var e=s(t.target).closest(".btn");i.call(e,"toggle"),s(t.target).is('input[type="radio"], input[type="checkbox"]')||(t.preventDefault(),e.is("input,button")?e.trigger("focus"):e.find("input:visible,button:visible").first().trigger("focus"))}).on("focus.bs.button.data-api blur.bs.button.data-api",'[data-toggle^="button"]',function(t){s(t.target).closest(".btn").toggleClass("focus",/^focus(in)?$/.test(t.type))})}(jQuery),function(p){"use strict";var c=function(t,e){this.$element=p(t),this.$indicators=this.$element.find(".carousel-indicators"),this.options=e,this.paused=null,this.sliding=null,this.interval=null,this.$active=null,this.$items=null,this.options.keyboard&&this.$element.on("keydown.bs.carousel",p.proxy(this.keydown,this)),"hover"==this.options.pause&&!("ontouchstart"in 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t},m.prototype.tip=function(){if(!this.$tip&&(this.$tip=g(this.options.template),1!=this.$tip.length))throw new Error(this.type+" `template` option must consist of exactly 1 top-level element!");return this.$tip},m.prototype.arrow=function(){return this.$arrow=this.$arrow||this.tip().find(".tooltip-arrow")},m.prototype.enable=function(){this.enabled=!0},m.prototype.disable=function(){this.enabled=!1},m.prototype.toggleEnabled=function(){this.enabled=!this.enabled},m.prototype.toggle=function(t){var e=this;t&&((e=g(t.currentTarget).data("bs."+this.type))||(e=new this.constructor(t.currentTarget,this.getDelegateOptions()),g(t.currentTarget).data("bs."+this.type,e))),t?(e.inState.click=!e.inState.click,e.isInStateTrue()?e.enter(e):e.leave(e)):e.tip().hasClass("in")?e.leave(e):e.enter(e)},m.prototype.destroy=function(){var 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this.$arrow=this.$arrow||this.tip().find(".arrow")};var t=n.fn.popover;n.fn.popover=function e(o){return this.each(function(){var t=n(this),e=t.data("bs.popover"),i="object"==typeof o&&o;!e&&/destroy|hide/.test(o)||(e||t.data("bs.popover",e=new s(this,i)),"string"==typeof o&&e[o]())})},n.fn.popover.Constructor=s,n.fn.popover.noConflict=function(){return n.fn.popover=t,this}}(jQuery),function(s){"use strict";function n(t,e){this.$body=s(document.body),this.$scrollElement=s(t).is(document.body)?s(window):s(t),this.options=s.extend({},n.DEFAULTS,e),this.selector=(this.options.target||"")+" .nav li > a",this.offsets=[],this.targets=[],this.activeTarget=null,this.scrollHeight=0,this.$scrollElement.on("scroll.bs.scrollspy",s.proxy(this.process,this)),this.refresh(),this.process()}function e(o){return this.each(function(){var t=s(this),e=t.data("bs.scrollspy"),i="object"==typeof o&&o;e||t.data("bs.scrollspy",e=new n(this,i)),"string"==typeof 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t=r(this),e=t.data("bs.tab");e||t.data("bs.tab",e=new a(this)),"string"==typeof i&&e[i]()})}a.VERSION="3.4.1",a.TRANSITION_DURATION=150,a.prototype.show=function(){var t=this.element,e=t.closest("ul:not(.dropdown-menu)"),i=t.data("target");if(i||(i=(i=t.attr("href"))&&i.replace(/.*(?=#[^\s]*$)/,"")),!t.parent("li").hasClass("active")){var o=e.find(".active:last a"),n=r.Event("hide.bs.tab",{relatedTarget:t[0]}),s=r.Event("show.bs.tab",{relatedTarget:o[0]});if(o.trigger(n),t.trigger(s),!s.isDefaultPrevented()&&!n.isDefaultPrevented()){var a=r(document).find(i);this.activate(t.closest("li"),e),this.activate(a,a.parent(),function(){o.trigger({type:"hidden.bs.tab",relatedTarget:t[0]}),t.trigger({type:"shown.bs.tab",relatedTarget:o[0]})})}}},a.prototype.activate=function(t,e,i){var o=e.find("> .active"),n=i&&r.support.transition&&(o.length&&o.hasClass("fade")||!!e.find("> .fade").length);function s(){o.removeClass("active").find("> .dropdown-menu > 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i=this.options.target===h.DEFAULTS.target?l(this.options.target):l(document).find(this.options.target);this.$target=i.on("scroll.bs.affix.data-api",l.proxy(this.checkPosition,this)).on("click.bs.affix.data-api",l.proxy(this.checkPositionWithEventLoop,this)),this.$element=l(t),this.affixed=null,this.unpin=null,this.pinnedOffset=null,this.checkPosition()};function i(o){return this.each(function(){var t=l(this),e=t.data("bs.affix"),i="object"==typeof o&&o;e||t.data("bs.affix",e=new h(this,i)),"string"==typeof o&&e[o]()})}h.VERSION="3.4.1",h.RESET="affix affix-top affix-bottom",h.DEFAULTS={offset:0,target:window},h.prototype.getState=function(t,e,i,o){var n=this.$target.scrollTop(),s=this.$element.offset(),a=this.$target.height();if(null!=i&&"top"==this.affixed)return n<i&&"top";if("bottom"==this.affixed)return null!=i?!(n+this.unpin<=s.top)&&"bottom":!(n+a<=t-o)&&"bottom";var r=null==this.affixed,l=r?n:s.top;return null!=i&&n<=i?"top":null!=o&&t-o<=l+(r?a:e)&&"bottom"},h.prototype.getPinnedOffset=function(){if(this.pinnedOffset)return this.pinnedOffset;this.$element.removeClass(h.RESET).addClass("affix");var t=this.$target.scrollTop(),e=this.$element.offset();return this.pinnedOffset=e.top-t},h.prototype.checkPositionWithEventLoop=function(){setTimeout(l.proxy(this.checkPosition,this),1)},h.prototype.checkPosition=function(){if(this.$element.is(":visible")){var t=this.$element.height(),e=this.options.offset,i=e.top,o=e.bottom,n=Math.max(l(document).height(),l(document.body).height());"object"!=typeof e&&(o=i=e),"function"==typeof i&&(i=e.top(this.$element)),"function"==typeof o&&(o=e.bottom(this.$element));var s=this.getState(n,t,i,o);if(this.affixed!=s){null!=this.unpin&&this.$element.css("top","");var 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define("bootstrap", ["jquery"], (function (global) {
    return function () {
        var ret, fn;
        return ret || global.bootstrap;
    };
}(this)));

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.

define('base/js/dialog',['jquery',
    'codemirror/lib/codemirror',
    'bootstrap',
	'base/js/i18n'],
	function($, CodeMirror, bs, i18n) {
    "use strict";

    /**
     * A wrapper around bootstrap modal for easier use
     * Pass it an option dictionary with the following properties:
     *
     *    - body : <string> or <DOM node>, main content of the dialog
     *            if pass a <string> it will be wrapped in a p tag and
     *            html element escaped, unless you specify sanitize=false
     *            option.
     *    - title : Dialog title, default to empty string.
     *    - buttons : dict of btn_options who keys are button label.
     *            see btn_options below for description
     *    - open : callback to trigger on dialog open.
     *    - destroy:
     *    - notebook : notebook instance
     *    - keyboard_manager: keyboard manager instance.
     *
     *  Unlike bootstrap modals, the backdrop options is set by default 
     *  to 'static'.
     *
     *  The rest of the options are passed as is to bootstrap modals. 
     *
     *  btn_options: dict with the following property:
     *  
     *    - click : callback to trigger on click
     *    - class : css classes to add to button.
     *
     *
     *
     **/
    var modal = function (options) {

        var modal = $("<div/>")
            .addClass("modal")
            .addClass("fade")
            .attr("role", "dialog");
        var dialog = $("<div/>")
            .addClass("modal-dialog")
            .appendTo(modal);
        var dialog_content = $("<div/>")
            .addClass("modal-content")
            .appendTo(dialog);
        if(typeof(options.body) === 'string' && options.sanitize !== false){
            options.body = $("<p/>").text(options.body);
        }
        dialog_content.append(
            $("<div/>")
                .addClass("modal-header")
                .mousedown(function() {
                  $(".modal").draggable({handle: '.modal-header'});
                })
                .append($("<button>")
                    .attr("type", "button")
                    .attr("aria-label", i18n.msg._("close"))
                    .addClass("close")
                    .attr("data-dismiss", "modal")
                    .attr("aria-hidden", "true")
                    .html("&times;")
                ).append(
                    $("<h4/>")
                        .addClass('modal-title')
                        .text(options.title || "")
                )
        ).append(
            $("<div/>")
                .addClass("modal-body")
                .append(
                    options.body || $("<p/>")
                )
        );
        
        var footer = $("<div/>").addClass("modal-footer");
        
        var default_button;
        
        for (var label in options.buttons) {
            var btn_opts = options.buttons[label];
            var button = $("<button/>")
                .addClass("btn btn-default btn-sm")
                .attr("data-dismiss", "modal")
                .text(i18n.msg.translate(label).fetch());
            if (btn_opts.id) {
                button.attr('id', btn_opts.id);
            }
            if (btn_opts.click) {
                button.click($.proxy(btn_opts.click, dialog_content));
            }
            if (btn_opts.class) {
                button.addClass(btn_opts.class);
            }
            footer.append(button);
            if (options.default_button && label === options.default_button) {
                default_button = button;
            }
        }
        if (!options.default_button) {
            default_button = footer.find("button").last();
        }
        dialog_content.append(footer);
        // hook up on-open event
        modal.on("shown.bs.modal", function () {
            setTimeout(function () {
                default_button.focus();
                if (options.open) {
                    $.proxy(options.open, modal)();
                }
            }, 0);
        });
        
        // destroy modal on hide, unless explicitly asked not to
        if (options.destroy === undefined || options.destroy) {
            modal.on("hidden.bs.modal", function () {
                modal.remove();
            });
        }
        modal.on("hidden.bs.modal", function () {
            if (options.notebook) {
                var cell = options.notebook.get_selected_cell();
                if (cell) cell.select();
            }
            if (options.keyboard_manager) {
                options.keyboard_manager.enable();
                options.keyboard_manager.command_mode();
            }
	    if (options.focus_button) {
            	$(options.focus_button).focus();
	    }
        });
        
        if (options.keyboard_manager) {
            options.keyboard_manager.disable();
        }
        
        if(options.backdrop === undefined){
          options.backdrop = 'static';
        }
        
        return modal.modal(options);
    };

    var kernel_modal = function (options) {
        /**
         * only one kernel dialog should be open at a time -- but
         * other modal dialogs can still be open
         */
        $('.kernel-modal').modal('hide');
        var dialog = modal(options);
        dialog.addClass('kernel-modal');
        return dialog;
    };

    var edit_metadata = function (options) {
        options.name = options.name || "Cell";
        var error_div = $('<div/>').css('color', 'red');
        var message_cell = 
            i18n.msg._("Manually edit the JSON below to manipulate the metadata for this cell.");
        var message_notebook = 
            i18n.msg._("Manually edit the JSON below to manipulate the metadata for this notebook.");
        var message_end = 
            i18n.msg._(" We recommend putting custom metadata attributes in an appropriately named substructure," +
            " so they don't conflict with those of others.");

        var message;
        if (options.name === 'Notebook') {
        	message = message_notebook + message_end;
        } else {
        	message = message_cell + message_end;
        }
        var textarea = $('<textarea/>')
            .attr('rows', '13')
            .attr('cols', '80')
            .attr('name', 'metadata')
            .text(JSON.stringify(options.md || {}, null, 2));
        
        var dialogform = $('<div/>').attr('title', i18n.msg._('Edit the metadata'))
            .append(
                $('<form/>').append(
                    $('<fieldset/>').append(
                        $('<label/>')
                        .attr('for','metadata')
                        .text(message)
                        )
                        .append(error_div)
                        .append($('<br/>'))
                        .append(textarea)
                    )
            );
        var editor = CodeMirror.fromTextArea(textarea[0], {
            lineNumbers: true,
            matchBrackets: true,
            indentUnit: 2,
            autoIndent: true,
            mode: 'application/json',
        });
        var title_msg;
        if (options.name === "Notebook") {
        	title_msg = i18n.msg._("Edit Notebook Metadata");
        } else {
        	title_msg = i18n.msg._("Edit Cell Metadata");
        }
        // This statement is used simply so that message extraction
        // will pick up the strings.
        var button_labels = [ i18n.msg._("Cancel"), i18n.msg._("Edit"), i18n.msg._("OK"), i18n.msg._("Apply")];
        var modal_obj = modal({
            title: title_msg,
            body: dialogform,
            default_button: "Cancel",
            buttons: {
                Cancel: {},
                Edit: { class : "btn-primary",
                    click: function() {
                        /**
                         * validate json and set it
                         */
                        var new_md;
                        try {
                            new_md = JSON.parse(editor.getValue());
                        } catch(e) {
                            console.log(e);
                            error_div.text(i18n.msg._('WARNING: Could not save invalid JSON.'));
                            return false;
                        }
                        options.callback(new_md);
                        options.notebook.apply_directionality();
                    }
                }
            },
            notebook: options.notebook,
            keyboard_manager: options.keyboard_manager,
        });

        modal_obj.on('shown.bs.modal', function(){ editor.refresh(); });
        modal_obj.on('hide.bs.modal', function(){
            options.edit_metadata_button ? options.edit_metadata_button.focus() : "";});
    };

    var edit_attachments = function (options) {
        // This shows the Edit Attachments dialog. This dialog allows the
        // user to delete attachments. We show a list of attachments to
        // the user and he can mark some of them for deletion. The deletion
        // is applied when the 'Apply' button of this dialog is pressed.
        var message;
        var attachments_list;
        if (Object.keys(options.attachments).length == 0) {
            message = i18n.msg._("There are no attachments for this cell.");
            attachments_list = $('<div>');
        } else {
            message = i18n.msg._("Current cell attachments");

            attachments_list = $('<div>')
                .addClass('list_container')
                .append(
                    $('<div>')
                    .addClass('row list_header')
                    .append(
                        $('<div>')
                        .text(i18n.msg._('Attachments'))
                    )
                );

            // This is a set containing keys of attachments to be deleted when
            // the Apply button is clicked
            var to_delete = {};

            var refresh_attachments_list = function() {
                $(attachments_list).find('.row').remove();
                for (var key in options.attachments) {
                    var mime = Object.keys(options.attachments[key])[0];
                    var deleted = key in to_delete;

                    // This ensures the current value of key is captured since
                    // javascript only has function scope
                    var btn;
                    // Trash/restore button
                    (function(){
                        var _key = key;
                        btn = $('<button>')
                            .addClass('btn btn-default btn-xs')
                            .css('display', 'inline-block');
                        if (deleted) {
                            btn.attr('title', i18n.msg._('Restore'))
                               .append(
                                   $('<i>')
                                   .addClass('fa fa-plus')
                               );
                            btn.click(function() {
                                delete to_delete[_key];
                                refresh_attachments_list();
                            });
                        } else {
                            btn.attr('title', i18n.msg._('Delete'))
                               .addClass('btn-danger')
                               .append(
                                   $('<i>')
                                   .addClass('fa fa-trash')
                               );
                            btn.click(function() {
                                to_delete[_key] = true;
                                refresh_attachments_list();
                            });
                        }
                        return btn;
                    })();
                    var row = $('<div>')
                        .addClass('col-md-12 att_row')
                        .append(
                            $('<div>')
                            .addClass('row')
                            .append(
                                $('<div>')
                                .addClass('att-name col-xs-4')
                                .text(key)
                            )
                            .append(
                                $('<div>')
                                .addClass('col-xs-4 text-muted')
                                .text(mime)
                            )
                            .append(
                                $('<div>')
                                .addClass('item-buttons pull-right')
                                .append(btn)
                            )
                        );
                    if (deleted) {
                        row.find('.att-name')
                           .css('text-decoration', 'line-through');
                    }

                    attachments_list.append($('<div>')
                        .addClass('list_item row')
                        .append(row)
                    );
                }
            };
            refresh_attachments_list();
        }

        var dialogform = $('<div/>')
            .attr('title', i18n.msg._('Edit attachments'))
            .append(message)
            .append('<br />')
            .append(attachments_list);
        var title_msg;
        if ( options.name === "Notebook" ) {
        	title_msg = i18n.msg._("Edit Notebook Attachments");
        } else {
        	title_msg = i18n.msg._("Edit Cell Attachments");
        }
        var modal_obj = modal({
            title: title_msg,
            body: dialogform,
            buttons: {
                Apply: { class : "btn-primary",
                    click: function() {
                        for (var key in to_delete) {
                            delete options.attachments[key];
                        }
                        options.callback(options.attachments);
                    }
                },
                Cancel: {}
            },
            notebook: options.notebook,
            keyboard_manager: options.keyboard_manager,
        });
    };

    var insert_image = function (options) {
        var message =
            i18n.msg._("Select a file to insert.");
        var file_input = $('<input/>')
            .attr('type', 'file')
            .attr('accept', 'image/*')
            .attr('name', 'file')
            .on('change', function(file) {
                var $btn = $(modal_obj).find('#btn_ok');
                if (this.files.length > 0) {
                    $btn.removeClass('disabled');
                } else {
                    $btn.addClass('disabled');
                }
            });
        var dialogform = $('<div/>').attr('title', i18n.msg._('Edit attachments'))
            .append(
                $('<form id="insert-image-form" />').append(
                    $('<fieldset/>').append(
                        $('<label/>')
                        .attr('for','file')
                        .text(message)
                        )
                        .append($('<br/>'))
                        .append(file_input)
                    )
            );
        var modal_obj = modal({
            title: i18n.msg._("Select a file"),
            body: dialogform,
            buttons: {
                OK: {
                    id : 'btn_ok',
                    class : "btn-primary disabled",
                    click: function() {
                        options.callback(file_input[0].files[0]);
                    }
                },
                Cancel: {}
            },
            notebook: options.notebook,
            keyboard_manager: options.keyboard_manager,
        });
    };

    
    var dialog = {
        modal : modal,
        kernel_modal : kernel_modal,
        edit_metadata : edit_metadata,
        edit_attachments : edit_attachments,
        insert_image : insert_image
    };

    return dialog;
});

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define('codemirror/addon/comment/comment',["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  var noOptions = {};
  var nonWS = /[^\s\u00a0]/;
  var Pos = CodeMirror.Pos;

  function firstNonWS(str) {
    var found = str.search(nonWS);
    return found == -1 ? 0 : found;
  }

  CodeMirror.commands.toggleComment = function(cm) {
    cm.toggleComment();
  };

  CodeMirror.defineExtension("toggleComment", function(options) {
    if (!options) options = noOptions;
    var cm = this;
    var minLine = Infinity, ranges = this.listSelections(), mode = null;
    for (var i = ranges.length - 1; i >= 0; i--) {
      var from = ranges[i].from(), to = ranges[i].to();
      if (from.line >= minLine) continue;
      if (to.line >= minLine) to = Pos(minLine, 0);
      minLine = from.line;
      if (mode == null) {
        if (cm.uncomment(from, to, options)) mode = "un";
        else { cm.lineComment(from, to, options); mode = "line"; }
      } else if (mode == "un") {
        cm.uncomment(from, to, options);
      } else {
        cm.lineComment(from, to, options);
      }
    }
  });

  // Rough heuristic to try and detect lines that are part of multi-line string
  function probablyInsideString(cm, pos, line) {
    return /\bstring\b/.test(cm.getTokenTypeAt(Pos(pos.line, 0))) && !/^[\'\"\`]/.test(line)
  }

  function getMode(cm, pos) {
    var mode = cm.getMode()
    return mode.useInnerComments === false || !mode.innerMode ? mode : cm.getModeAt(pos)
  }

  CodeMirror.defineExtension("lineComment", function(from, to, options) {
    if (!options) options = noOptions;
    var self = this, mode = getMode(self, from);
    var firstLine = self.getLine(from.line);
    if (firstLine == null || probablyInsideString(self, from, firstLine)) return;

    var commentString = options.lineComment || mode.lineComment;
    if (!commentString) {
      if (options.blockCommentStart || mode.blockCommentStart) {
        options.fullLines = true;
        self.blockComment(from, to, options);
      }
      return;
    }

    var end = Math.min(to.ch != 0 || to.line == from.line ? to.line + 1 : to.line, self.lastLine() + 1);
    var pad = options.padding == null ? " " : options.padding;
    var blankLines = options.commentBlankLines || from.line == to.line;

    self.operation(function() {
      if (options.indent) {
        var baseString = null;
        for (var i = from.line; i < end; ++i) {
          var line = self.getLine(i);
          var whitespace = line.slice(0, firstNonWS(line));
          if (baseString == null || baseString.length > whitespace.length) {
            baseString = whitespace;
          }
        }
        for (var i = from.line; i < end; ++i) {
          var line = self.getLine(i), cut = baseString.length;
          if (!blankLines && !nonWS.test(line)) continue;
          if (line.slice(0, cut) != baseString) cut = firstNonWS(line);
          self.replaceRange(baseString + commentString + pad, Pos(i, 0), Pos(i, cut));
        }
      } else {
        for (var i = from.line; i < end; ++i) {
          if (blankLines || nonWS.test(self.getLine(i)))
            self.replaceRange(commentString + pad, Pos(i, 0));
        }
      }
    });
  });

  CodeMirror.defineExtension("blockComment", function(from, to, options) {
    if (!options) options = noOptions;
    var self = this, mode = getMode(self, from);
    var startString = options.blockCommentStart || mode.blockCommentStart;
    var endString = options.blockCommentEnd || mode.blockCommentEnd;
    if (!startString || !endString) {
      if ((options.lineComment || mode.lineComment) && options.fullLines != false)
        self.lineComment(from, to, options);
      return;
    }
    if (/\bcomment\b/.test(self.getTokenTypeAt(Pos(from.line, 0)))) return

    var end = Math.min(to.line, self.lastLine());
    if (end != from.line && to.ch == 0 && nonWS.test(self.getLine(end))) --end;

    var pad = options.padding == null ? " " : options.padding;
    if (from.line > end) return;

    self.operation(function() {
      if (options.fullLines != false) {
        var lastLineHasText = nonWS.test(self.getLine(end));
        self.replaceRange(pad + endString, Pos(end));
        self.replaceRange(startString + pad, Pos(from.line, 0));
        var lead = options.blockCommentLead || mode.blockCommentLead;
        if (lead != null) for (var i = from.line + 1; i <= end; ++i)
          if (i != end || lastLineHasText)
            self.replaceRange(lead + pad, Pos(i, 0));
      } else {
        self.replaceRange(endString, to);
        self.replaceRange(startString, from);
      }
    });
  });

  CodeMirror.defineExtension("uncomment", function(from, to, options) {
    if (!options) options = noOptions;
    var self = this, mode = getMode(self, from);
    var end = Math.min(to.ch != 0 || to.line == from.line ? to.line : to.line - 1, self.lastLine()), start = Math.min(from.line, end);

    // Try finding line comments
    var lineString = options.lineComment || mode.lineComment, lines = [];
    var pad = options.padding == null ? " " : options.padding, didSomething;
    lineComment: {
      if (!lineString) break lineComment;
      for (var i = start; i <= end; ++i) {
        var line = self.getLine(i);
        var found = line.indexOf(lineString);
        if (found > -1 && !/comment/.test(self.getTokenTypeAt(Pos(i, found + 1)))) found = -1;
        if (found == -1 && nonWS.test(line)) break lineComment;
        if (found > -1 && nonWS.test(line.slice(0, found))) break lineComment;
        lines.push(line);
      }
      self.operation(function() {
        for (var i = start; i <= end; ++i) {
          var line = lines[i - start];
          var pos = line.indexOf(lineString), endPos = pos + lineString.length;
          if (pos < 0) continue;
          if (line.slice(endPos, endPos + pad.length) == pad) endPos += pad.length;
          didSomething = true;
          self.replaceRange("", Pos(i, pos), Pos(i, endPos));
        }
      });
      if (didSomething) return true;
    }

    // Try block comments
    var startString = options.blockCommentStart || mode.blockCommentStart;
    var endString = options.blockCommentEnd || mode.blockCommentEnd;
    if (!startString || !endString) return false;
    var lead = options.blockCommentLead || mode.blockCommentLead;
    var startLine = self.getLine(start), open = startLine.indexOf(startString)
    if (open == -1) return false
    var endLine = end == start ? startLine : self.getLine(end)
    var close = endLine.indexOf(endString, end == start ? open + startString.length : 0);
    var insideStart = Pos(start, open + 1), insideEnd = Pos(end, close + 1)
    if (close == -1 ||
        !/comment/.test(self.getTokenTypeAt(insideStart)) ||
        !/comment/.test(self.getTokenTypeAt(insideEnd)) ||
        self.getRange(insideStart, insideEnd, "\n").indexOf(endString) > -1)
      return false;

    // Avoid killing block comments completely outside the selection.
    // Positions of the last startString before the start of the selection, and the first endString after it.
    var lastStart = startLine.lastIndexOf(startString, from.ch);
    var firstEnd = lastStart == -1 ? -1 : startLine.slice(0, from.ch).indexOf(endString, lastStart + startString.length);
    if (lastStart != -1 && firstEnd != -1 && firstEnd + endString.length != from.ch) return false;
    // Positions of the first endString after the end of the selection, and the last startString before it.
    firstEnd = endLine.indexOf(endString, to.ch);
    var almostLastStart = endLine.slice(to.ch).lastIndexOf(startString, firstEnd - to.ch);
    lastStart = (firstEnd == -1 || almostLastStart == -1) ? -1 : to.ch + almostLastStart;
    if (firstEnd != -1 && lastStart != -1 && lastStart != to.ch) return false;

    self.operation(function() {
      self.replaceRange("", Pos(end, close - (pad && endLine.slice(close - pad.length, close) == pad ? pad.length : 0)),
                        Pos(end, close + endString.length));
      var openEnd = open + startString.length;
      if (pad && startLine.slice(openEnd, openEnd + pad.length) == pad) openEnd += pad.length;
      self.replaceRange("", Pos(start, open), Pos(start, openEnd));
      if (lead) for (var i = start + 1; i <= end; ++i) {
        var line = self.getLine(i), found = line.indexOf(lead);
        if (found == -1 || nonWS.test(line.slice(0, found))) continue;
        var foundEnd = found + lead.length;
        if (pad && line.slice(foundEnd, foundEnd + pad.length) == pad) foundEnd += pad.length;
        self.replaceRange("", Pos(i, found), Pos(i, foundEnd));
      }
    });
    return true;
  });
});

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

// Open simple dialogs on top of an editor. Relies on dialog.css.

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define('codemirror/addon/dialog/dialog',["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  function dialogDiv(cm, template, bottom) {
    var wrap = cm.getWrapperElement();
    var dialog;
    dialog = wrap.appendChild(document.createElement("div"));
    if (bottom)
      dialog.className = "CodeMirror-dialog CodeMirror-dialog-bottom";
    else
      dialog.className = "CodeMirror-dialog CodeMirror-dialog-top";

    if (typeof template == "string") {
      dialog.innerHTML = template;
    } else { // Assuming it's a detached DOM element.
      dialog.appendChild(template);
    }
    CodeMirror.addClass(wrap, 'dialog-opened');
    return dialog;
  }

  function closeNotification(cm, newVal) {
    if (cm.state.currentNotificationClose)
      cm.state.currentNotificationClose();
    cm.state.currentNotificationClose = newVal;
  }

  CodeMirror.defineExtension("openDialog", function(template, callback, options) {
    if (!options) options = {};

    closeNotification(this, null);

    var dialog = dialogDiv(this, template, options.bottom);
    var closed = false, me = this;
    function close(newVal) {
      if (typeof newVal == 'string') {
        inp.value = newVal;
      } else {
        if (closed) return;
        closed = true;
        CodeMirror.rmClass(dialog.parentNode, 'dialog-opened');
        dialog.parentNode.removeChild(dialog);
        me.focus();

        if (options.onClose) options.onClose(dialog);
      }
    }

    var inp = dialog.getElementsByTagName("input")[0], button;
    if (inp) {
      inp.focus();

      if (options.value) {
        inp.value = options.value;
        if (options.selectValueOnOpen !== false) {
          inp.select();
        }
      }

      if (options.onInput)
        CodeMirror.on(inp, "input", function(e) { options.onInput(e, inp.value, close);});
      if (options.onKeyUp)
        CodeMirror.on(inp, "keyup", function(e) {options.onKeyUp(e, inp.value, close);});

      CodeMirror.on(inp, "keydown", function(e) {
        if (options && options.onKeyDown && options.onKeyDown(e, inp.value, close)) { return; }
        if (e.keyCode == 27 || (options.closeOnEnter !== false && e.keyCode == 13)) {
          inp.blur();
          CodeMirror.e_stop(e);
          close();
        }
        if (e.keyCode == 13) callback(inp.value, e);
      });

      if (options.closeOnBlur !== false) CodeMirror.on(dialog, "focusout", function (evt) {
        if (evt.relatedTarget !== null) close();
      });
    } else if (button = dialog.getElementsByTagName("button")[0]) {
      CodeMirror.on(button, "click", function() {
        close();
        me.focus();
      });

      if (options.closeOnBlur !== false) CodeMirror.on(button, "blur", close);

      button.focus();
    }
    return close;
  });

  CodeMirror.defineExtension("openConfirm", function(template, callbacks, options) {
    closeNotification(this, null);
    var dialog = dialogDiv(this, template, options && options.bottom);
    var buttons = dialog.getElementsByTagName("button");
    var closed = false, me = this, blurring = 1;
    function close() {
      if (closed) return;
      closed = true;
      CodeMirror.rmClass(dialog.parentNode, 'dialog-opened');
      dialog.parentNode.removeChild(dialog);
      me.focus();
    }
    buttons[0].focus();
    for (var i = 0; i < buttons.length; ++i) {
      var b = buttons[i];
      (function(callback) {
        CodeMirror.on(b, "click", function(e) {
          CodeMirror.e_preventDefault(e);
          close();
          if (callback) callback(me);
        });
      })(callbacks[i]);
      CodeMirror.on(b, "blur", function() {
        --blurring;
        setTimeout(function() { if (blurring <= 0) close(); }, 200);
      });
      CodeMirror.on(b, "focus", function() { ++blurring; });
    }
  });

  /*
   * openNotification
   * Opens a notification, that can be closed with an optional timer
   * (default 5000ms timer) and always closes on click.
   *
   * If a notification is opened while another is opened, it will close the
   * currently opened one and open the new one immediately.
   */
  CodeMirror.defineExtension("openNotification", function(template, options) {
    closeNotification(this, close);
    var dialog = dialogDiv(this, template, options && options.bottom);
    var closed = false, doneTimer;
    var duration = options && typeof options.duration !== "undefined" ? options.duration : 5000;

    function close() {
      if (closed) return;
      closed = true;
      clearTimeout(doneTimer);
      CodeMirror.rmClass(dialog.parentNode, 'dialog-opened');
      dialog.parentNode.removeChild(dialog);
    }

    CodeMirror.on(dialog, 'click', function(e) {
      CodeMirror.e_preventDefault(e);
      close();
    });

    if (duration)
      doneTimer = setTimeout(close, duration);

    return close;
  });
});

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define('codemirror/addon/edit/closebrackets',["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  var defaults = {
    pairs: "()[]{}''\"\"",
    closeBefore: ")]}'\":;>",
    triples: "",
    explode: "[]{}"
  };

  var Pos = CodeMirror.Pos;

  CodeMirror.defineOption("autoCloseBrackets", false, function(cm, val, old) {
    if (old && old != CodeMirror.Init) {
      cm.removeKeyMap(keyMap);
      cm.state.closeBrackets = null;
    }
    if (val) {
      ensureBound(getOption(val, "pairs"))
      cm.state.closeBrackets = val;
      cm.addKeyMap(keyMap);
    }
  });

  function getOption(conf, name) {
    if (name == "pairs" && typeof conf == "string") return conf;
    if (typeof conf == "object" && conf[name] != null) return conf[name];
    return defaults[name];
  }

  var keyMap = {Backspace: handleBackspace, Enter: handleEnter};
  function ensureBound(chars) {
    for (var i = 0; i < chars.length; i++) {
      var ch = chars.charAt(i), key = "'" + ch + "'"
      if (!keyMap[key]) keyMap[key] = handler(ch)
    }
  }
  ensureBound(defaults.pairs + "`")

  function handler(ch) {
    return function(cm) { return handleChar(cm, ch); };
  }

  function getConfig(cm) {
    var deflt = cm.state.closeBrackets;
    if (!deflt || deflt.override) return deflt;
    var mode = cm.getModeAt(cm.getCursor());
    return mode.closeBrackets || deflt;
  }

  function handleBackspace(cm) {
    var conf = getConfig(cm);
    if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass;

    var pairs = getOption(conf, "pairs");
    var ranges = cm.listSelections();
    for (var i = 0; i < ranges.length; i++) {
      if (!ranges[i].empty()) return CodeMirror.Pass;
      var around = charsAround(cm, ranges[i].head);
      if (!around || pairs.indexOf(around) % 2 != 0) return CodeMirror.Pass;
    }
    for (var i = ranges.length - 1; i >= 0; i--) {
      var cur = ranges[i].head;
      cm.replaceRange("", Pos(cur.line, cur.ch - 1), Pos(cur.line, cur.ch + 1), "+delete");
    }
  }

  function handleEnter(cm) {
    var conf = getConfig(cm);
    var explode = conf && getOption(conf, "explode");
    if (!explode || cm.getOption("disableInput")) return CodeMirror.Pass;

    var ranges = cm.listSelections();
    for (var i = 0; i < ranges.length; i++) {
      if (!ranges[i].empty()) return CodeMirror.Pass;
      var around = charsAround(cm, ranges[i].head);
      if (!around || explode.indexOf(around) % 2 != 0) return CodeMirror.Pass;
    }
    cm.operation(function() {
      var linesep = cm.lineSeparator() || "\n";
      cm.replaceSelection(linesep + linesep, null);
      cm.execCommand("goCharLeft");
      ranges = cm.listSelections();
      for (var i = 0; i < ranges.length; i++) {
        var line = ranges[i].head.line;
        cm.indentLine(line, null, true);
        cm.indentLine(line + 1, null, true);
      }
    });
  }

  function contractSelection(sel) {
    var inverted = CodeMirror.cmpPos(sel.anchor, sel.head) > 0;
    return {anchor: new Pos(sel.anchor.line, sel.anchor.ch + (inverted ? -1 : 1)),
            head: new Pos(sel.head.line, sel.head.ch + (inverted ? 1 : -1))};
  }

  function handleChar(cm, ch) {
    var conf = getConfig(cm);
    if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass;

    var pairs = getOption(conf, "pairs");
    var pos = pairs.indexOf(ch);
    if (pos == -1) return CodeMirror.Pass;

    var closeBefore = getOption(conf,"closeBefore");

    var triples = getOption(conf, "triples");

    var identical = pairs.charAt(pos + 1) == ch;
    var ranges = cm.listSelections();
    var opening = pos % 2 == 0;

    var type;
    for (var i = 0; i < ranges.length; i++) {
      var range = ranges[i], cur = range.head, curType;
      var next = cm.getRange(cur, Pos(cur.line, cur.ch + 1));
      if (opening && !range.empty()) {
        curType = "surround";
      } else if ((identical || !opening) && next == ch) {
        if (identical && stringStartsAfter(cm, cur))
          curType = "both";
        else if (triples.indexOf(ch) >= 0 && cm.getRange(cur, Pos(cur.line, cur.ch + 3)) == ch + ch + ch)
          curType = "skipThree";
        else
          curType = "skip";
      } else if (identical && cur.ch > 1 && triples.indexOf(ch) >= 0 &&
                 cm.getRange(Pos(cur.line, cur.ch - 2), cur) == ch + ch) {
        if (cur.ch > 2 && /\bstring/.test(cm.getTokenTypeAt(Pos(cur.line, cur.ch - 2)))) return CodeMirror.Pass;
        curType = "addFour";
      } else if (identical) {
        var prev = cur.ch == 0 ? " " : cm.getRange(Pos(cur.line, cur.ch - 1), cur)
        if (!CodeMirror.isWordChar(next) && prev != ch && !CodeMirror.isWordChar(prev)) curType = "both";
        else return CodeMirror.Pass;
      } else if (opening && (next.length === 0 || /\s/.test(next) || closeBefore.indexOf(next) > -1)) {
        curType = "both";
      } else {
        return CodeMirror.Pass;
      }
      if (!type) type = curType;
      else if (type != curType) return CodeMirror.Pass;
    }

    var left = pos % 2 ? pairs.charAt(pos - 1) : ch;
    var right = pos % 2 ? ch : pairs.charAt(pos + 1);
    cm.operation(function() {
      if (type == "skip") {
        cm.execCommand("goCharRight");
      } else if (type == "skipThree") {
        for (var i = 0; i < 3; i++)
          cm.execCommand("goCharRight");
      } else if (type == "surround") {
        var sels = cm.getSelections();
        for (var i = 0; i < sels.length; i++)
          sels[i] = left + sels[i] + right;
        cm.replaceSelections(sels, "around");
        sels = cm.listSelections().slice();
        for (var i = 0; i < sels.length; i++)
          sels[i] = contractSelection(sels[i]);
        cm.setSelections(sels);
      } else if (type == "both") {
        cm.replaceSelection(left + right, null);
        cm.triggerElectric(left + right);
        cm.execCommand("goCharLeft");
      } else if (type == "addFour") {
        cm.replaceSelection(left + left + left + left, "before");
        cm.execCommand("goCharRight");
      }
    });
  }

  function charsAround(cm, pos) {
    var str = cm.getRange(Pos(pos.line, pos.ch - 1),
                          Pos(pos.line, pos.ch + 1));
    return str.length == 2 ? str : null;
  }

  function stringStartsAfter(cm, pos) {
    var token = cm.getTokenAt(Pos(pos.line, pos.ch + 1))
    return /\bstring/.test(token.type) && token.start == pos.ch &&
      (pos.ch == 0 || !/\bstring/.test(cm.getTokenTypeAt(pos)))
  }
});

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define('codemirror/addon/edit/matchbrackets',["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  var ie_lt8 = /MSIE \d/.test(navigator.userAgent) &&
    (document.documentMode == null || document.documentMode < 8);

  var Pos = CodeMirror.Pos;

  var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<", "<": ">>", ">": "<<"};

  function bracketRegex(config) {
    return config && config.bracketRegex || /[(){}[\]]/
  }

  function findMatchingBracket(cm, where, config) {
    var line = cm.getLineHandle(where.line), pos = where.ch - 1;
    var afterCursor = config && config.afterCursor
    if (afterCursor == null)
      afterCursor = /(^| )cm-fat-cursor($| )/.test(cm.getWrapperElement().className)
    var re = bracketRegex(config)

    // A cursor is defined as between two characters, but in in vim command mode
    // (i.e. not insert mode), the cursor is visually represented as a
    // highlighted box on top of the 2nd character. Otherwise, we allow matches
    // from before or after the cursor.
    var match = (!afterCursor && pos >= 0 && re.test(line.text.charAt(pos)) && matching[line.text.charAt(pos)]) ||
        re.test(line.text.charAt(pos + 1)) && matching[line.text.charAt(++pos)];
    if (!match) return null;
    var dir = match.charAt(1) == ">" ? 1 : -1;
    if (config && config.strict && (dir > 0) != (pos == where.ch)) return null;
    var style = cm.getTokenTypeAt(Pos(where.line, pos + 1));

    var found = scanForBracket(cm, Pos(where.line, pos + (dir > 0 ? 1 : 0)), dir, style || null, config);
    if (found == null) return null;
    return {from: Pos(where.line, pos), to: found && found.pos,
            match: found && found.ch == match.charAt(0), forward: dir > 0};
  }

  // bracketRegex is used to specify which type of bracket to scan
  // should be a regexp, e.g. /[[\]]/
  //
  // Note: If "where" is on an open bracket, then this bracket is ignored.
  //
  // Returns false when no bracket was found, null when it reached
  // maxScanLines and gave up
  function scanForBracket(cm, where, dir, style, config) {
    var maxScanLen = (config && config.maxScanLineLength) || 10000;
    var maxScanLines = (config && config.maxScanLines) || 1000;

    var stack = [];
    var re = bracketRegex(config)
    var lineEnd = dir > 0 ? Math.min(where.line + maxScanLines, cm.lastLine() + 1)
                          : Math.max(cm.firstLine() - 1, where.line - maxScanLines);
    for (var lineNo = where.line; lineNo != lineEnd; lineNo += dir) {
      var line = cm.getLine(lineNo);
      if (!line) continue;
      var pos = dir > 0 ? 0 : line.length - 1, end = dir > 0 ? line.length : -1;
      if (line.length > maxScanLen) continue;
      if (lineNo == where.line) pos = where.ch - (dir < 0 ? 1 : 0);
      for (; pos != end; pos += dir) {
        var ch = line.charAt(pos);
        if (re.test(ch) && (style === undefined || cm.getTokenTypeAt(Pos(lineNo, pos + 1)) == style)) {
          var match = matching[ch];
          if (match && (match.charAt(1) == ">") == (dir > 0)) stack.push(ch);
          else if (!stack.length) return {pos: Pos(lineNo, pos), ch: ch};
          else stack.pop();
        }
      }
    }
    return lineNo - dir == (dir > 0 ? cm.lastLine() : cm.firstLine()) ? false : null;
  }

  function matchBrackets(cm, autoclear, config) {
    // Disable brace matching in long lines, since it'll cause hugely slow updates
    var maxHighlightLen = cm.state.matchBrackets.maxHighlightLineLength || 1000;
    var marks = [], ranges = cm.listSelections();
    for (var i = 0; i < ranges.length; i++) {
      var match = ranges[i].empty() && findMatchingBracket(cm, ranges[i].head, config);
      if (match && cm.getLine(match.from.line).length <= maxHighlightLen) {
        var style = match.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket";
        marks.push(cm.markText(match.from, Pos(match.from.line, match.from.ch + 1), {className: style}));
        if (match.to && cm.getLine(match.to.line).length <= maxHighlightLen)
          marks.push(cm.markText(match.to, Pos(match.to.line, match.to.ch + 1), {className: style}));
      }
    }

    if (marks.length) {
      // Kludge to work around the IE bug from issue #1193, where text
      // input stops going to the textare whever this fires.
      if (ie_lt8 && cm.state.focused) cm.focus();

      var clear = function() {
        cm.operation(function() {
          for (var i = 0; i < marks.length; i++) marks[i].clear();
        });
      };
      if (autoclear) setTimeout(clear, 800);
      else return clear;
    }
  }

  function doMatchBrackets(cm) {
    cm.operation(function() {
      if (cm.state.matchBrackets.currentlyHighlighted) {
        cm.state.matchBrackets.currentlyHighlighted();
        cm.state.matchBrackets.currentlyHighlighted = null;
      }
      cm.state.matchBrackets.currentlyHighlighted = matchBrackets(cm, false, cm.state.matchBrackets);
    });
  }

  CodeMirror.defineOption("matchBrackets", false, function(cm, val, old) {
    function clear(cm) {
      if (cm.state.matchBrackets && cm.state.matchBrackets.currentlyHighlighted) {
        cm.state.matchBrackets.currentlyHighlighted();
        cm.state.matchBrackets.currentlyHighlighted = null;
      }
    }

    if (old && old != CodeMirror.Init) {
      cm.off("cursorActivity", doMatchBrackets);
      cm.off("focus", doMatchBrackets)
      cm.off("blur", clear)
      clear(cm);
    }
    if (val) {
      cm.state.matchBrackets = typeof val == "object" ? val : {};
      cm.on("cursorActivity", doMatchBrackets);
      cm.on("focus", doMatchBrackets)
      cm.on("blur", clear)
    }
  });

  CodeMirror.defineExtension("matchBrackets", function() {matchBrackets(this, true);});
  CodeMirror.defineExtension("findMatchingBracket", function(pos, config, oldConfig){
    // Backwards-compatibility kludge
    if (oldConfig || typeof config == "boolean") {
      if (!oldConfig) {
        config = config ? {strict: true} : null
      } else {
        oldConfig.strict = config
        config = oldConfig
      }
    }
    return findMatchingBracket(this, pos, config)
  });
  CodeMirror.defineExtension("scanForBracket", function(pos, dir, style, config){
    return scanForBracket(this, pos, dir, style, config);
  });
});

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"))
  else if (typeof define == "function" && define.amd) // AMD
    define('codemirror/addon/search/searchcursor',["../../lib/codemirror"], mod)
  else // Plain browser env
    mod(CodeMirror)
})(function(CodeMirror) {
  "use strict"
  var Pos = CodeMirror.Pos

  function regexpFlags(regexp) {
    var flags = regexp.flags
    return flags != null ? flags : (regexp.ignoreCase ? "i" : "")
      + (regexp.global ? "g" : "")
      + (regexp.multiline ? "m" : "")
  }

  function ensureFlags(regexp, flags) {
    var current = regexpFlags(regexp), target = current
    for (var i = 0; i < flags.length; i++) if (target.indexOf(flags.charAt(i)) == -1)
      target += flags.charAt(i)
    return current == target ? regexp : new RegExp(regexp.source, target)
  }

  function maybeMultiline(regexp) {
    return /\\s|\\n|\n|\\W|\\D|\[\^/.test(regexp.source)
  }

  function searchRegexpForward(doc, regexp, start) {
    regexp = ensureFlags(regexp, "g")
    for (var line = start.line, ch = start.ch, last = doc.lastLine(); line <= last; line++, ch = 0) {
      regexp.lastIndex = ch
      var string = doc.getLine(line), match = regexp.exec(string)
      if (match)
        return {from: Pos(line, match.index),
                to: Pos(line, match.index + match[0].length),
                match: match}
    }
  }

  function searchRegexpForwardMultiline(doc, regexp, start) {
    if (!maybeMultiline(regexp)) return searchRegexpForward(doc, regexp, start)

    regexp = ensureFlags(regexp, "gm")
    var string, chunk = 1
    for (var line = start.line, last = doc.lastLine(); line <= last;) {
      // This grows the search buffer in exponentially-sized chunks
      // between matches, so that nearby matches are fast and don't
      // require concatenating the whole document (in case we're
      // searching for something that has tons of matches), but at the
      // same time, the amount of retries is limited.
      for (var i = 0; i < chunk; i++) {
        if (line > last) break
        var curLine = doc.getLine(line++)
        string = string == null ? curLine : string + "\n" + curLine
      }
      chunk = chunk * 2
      regexp.lastIndex = start.ch
      var match = regexp.exec(string)
      if (match) {
        var before = string.slice(0, match.index).split("\n"), inside = match[0].split("\n")
        var startLine = start.line + before.length - 1, startCh = before[before.length - 1].length
        return {from: Pos(startLine, startCh),
                to: Pos(startLine + inside.length - 1,
                        inside.length == 1 ? startCh + inside[0].length : inside[inside.length - 1].length),
                match: match}
      }
    }
  }

  function lastMatchIn(string, regexp, endMargin) {
    var match, from = 0
    while (from <= string.length) {
      regexp.lastIndex = from
      var newMatch = regexp.exec(string)
      if (!newMatch) break
      var end = newMatch.index + newMatch[0].length
      if (end > string.length - endMargin) break
      if (!match || end > match.index + match[0].length)
        match = newMatch
      from = newMatch.index + 1
    }
    return match
  }

  function searchRegexpBackward(doc, regexp, start) {
    regexp = ensureFlags(regexp, "g")
    for (var line = start.line, ch = start.ch, first = doc.firstLine(); line >= first; line--, ch = -1) {
      var string = doc.getLine(line)
      var match = lastMatchIn(string, regexp, ch < 0 ? 0 : string.length - ch)
      if (match)
        return {from: Pos(line, match.index),
                to: Pos(line, match.index + match[0].length),
                match: match}
    }
  }

  function searchRegexpBackwardMultiline(doc, regexp, start) {
    if (!maybeMultiline(regexp)) return searchRegexpBackward(doc, regexp, start)
    regexp = ensureFlags(regexp, "gm")
    var string, chunkSize = 1, endMargin = doc.getLine(start.line).length - start.ch
    for (var line = start.line, first = doc.firstLine(); line >= first;) {
      for (var i = 0; i < chunkSize && line >= first; i++) {
        var curLine = doc.getLine(line--)
        string = string == null ? curLine : curLine + "\n" + string
      }
      chunkSize *= 2

      var match = lastMatchIn(string, regexp, endMargin)
      if (match) {
        var before = string.slice(0, match.index).split("\n"), inside = match[0].split("\n")
        var startLine = line + before.length, startCh = before[before.length - 1].length
        return {from: Pos(startLine, startCh),
                to: Pos(startLine + inside.length - 1,
                        inside.length == 1 ? startCh + inside[0].length : inside[inside.length - 1].length),
                match: match}
      }
    }
  }

  var doFold, noFold
  if (String.prototype.normalize) {
    doFold = function(str) { return str.normalize("NFD").toLowerCase() }
    noFold = function(str) { return str.normalize("NFD") }
  } else {
    doFold = function(str) { return str.toLowerCase() }
    noFold = function(str) { return str }
  }

  // Maps a position in a case-folded line back to a position in the original line
  // (compensating for codepoints increasing in number during folding)
  function adjustPos(orig, folded, pos, foldFunc) {
    if (orig.length == folded.length) return pos
    for (var min = 0, max = pos + Math.max(0, orig.length - folded.length);;) {
      if (min == max) return min
      var mid = (min + max) >> 1
      var len = foldFunc(orig.slice(0, mid)).length
      if (len == pos) return mid
      else if (len > pos) max = mid
      else min = mid + 1
    }
  }

  function searchStringForward(doc, query, start, caseFold) {
    // Empty string would match anything and never progress, so we
    // define it to match nothing instead.
    if (!query.length) return null
    var fold = caseFold ? doFold : noFold
    var lines = fold(query).split(/\r|\n\r?/)

    search: for (var line = start.line, ch = start.ch, last = doc.lastLine() + 1 - lines.length; line <= last; line++, ch = 0) {
      var orig = doc.getLine(line).slice(ch), string = fold(orig)
      if (lines.length == 1) {
        var found = string.indexOf(lines[0])
        if (found == -1) continue search
        var start = adjustPos(orig, string, found, fold) + ch
        return {from: Pos(line, adjustPos(orig, string, found, fold) + ch),
                to: Pos(line, adjustPos(orig, string, found + lines[0].length, fold) + ch)}
      } else {
        var cutFrom = string.length - lines[0].length
        if (string.slice(cutFrom) != lines[0]) continue search
        for (var i = 1; i < lines.length - 1; i++)
          if (fold(doc.getLine(line + i)) != lines[i]) continue search
        var end = doc.getLine(line + lines.length - 1), endString = fold(end), lastLine = lines[lines.length - 1]
        if (endString.slice(0, lastLine.length) != lastLine) continue search
        return {from: Pos(line, adjustPos(orig, string, cutFrom, fold) + ch),
                to: Pos(line + lines.length - 1, adjustPos(end, endString, lastLine.length, fold))}
      }
    }
  }

  function searchStringBackward(doc, query, start, caseFold) {
    if (!query.length) return null
    var fold = caseFold ? doFold : noFold
    var lines = fold(query).split(/\r|\n\r?/)

    search: for (var line = start.line, ch = start.ch, first = doc.firstLine() - 1 + lines.length; line >= first; line--, ch = -1) {
      var orig = doc.getLine(line)
      if (ch > -1) orig = orig.slice(0, ch)
      var string = fold(orig)
      if (lines.length == 1) {
        var found = string.lastIndexOf(lines[0])
        if (found == -1) continue search
        return {from: Pos(line, adjustPos(orig, string, found, fold)),
                to: Pos(line, adjustPos(orig, string, found + lines[0].length, fold))}
      } else {
        var lastLine = lines[lines.length - 1]
        if (string.slice(0, lastLine.length) != lastLine) continue search
        for (var i = 1, start = line - lines.length + 1; i < lines.length - 1; i++)
          if (fold(doc.getLine(start + i)) != lines[i]) continue search
        var top = doc.getLine(line + 1 - lines.length), topString = fold(top)
        if (topString.slice(topString.length - lines[0].length) != lines[0]) continue search
        return {from: Pos(line + 1 - lines.length, adjustPos(top, topString, top.length - lines[0].length, fold)),
                to: Pos(line, adjustPos(orig, string, lastLine.length, fold))}
      }
    }
  }

  function SearchCursor(doc, query, pos, options) {
    this.atOccurrence = false
    this.doc = doc
    pos = pos ? doc.clipPos(pos) : Pos(0, 0)
    this.pos = {from: pos, to: pos}

    var caseFold
    if (typeof options == "object") {
      caseFold = options.caseFold
    } else { // Backwards compat for when caseFold was the 4th argument
      caseFold = options
      options = null
    }

    if (typeof query == "string") {
      if (caseFold == null) caseFold = false
      this.matches = function(reverse, pos) {
        return (reverse ? searchStringBackward : searchStringForward)(doc, query, pos, caseFold)
      }
    } else {
      query = ensureFlags(query, "gm")
      if (!options || options.multiline !== false)
        this.matches = function(reverse, pos) {
          return (reverse ? searchRegexpBackwardMultiline : searchRegexpForwardMultiline)(doc, query, pos)
        }
      else
        this.matches = function(reverse, pos) {
          return (reverse ? searchRegexpBackward : searchRegexpForward)(doc, query, pos)
        }
    }
  }

  SearchCursor.prototype = {
    findNext: function() {return this.find(false)},
    findPrevious: function() {return this.find(true)},

    find: function(reverse) {
      var result = this.matches(reverse, this.doc.clipPos(reverse ? this.pos.from : this.pos.to))

      // Implements weird auto-growing behavior on null-matches for
      // backwards-compatibility with the vim code (unfortunately)
      while (result && CodeMirror.cmpPos(result.from, result.to) == 0) {
        if (reverse) {
          if (result.from.ch) result.from = Pos(result.from.line, result.from.ch - 1)
          else if (result.from.line == this.doc.firstLine()) result = null
          else result = this.matches(reverse, this.doc.clipPos(Pos(result.from.line - 1)))
        } else {
          if (result.to.ch < this.doc.getLine(result.to.line).length) result.to = Pos(result.to.line, result.to.ch + 1)
          else if (result.to.line == this.doc.lastLine()) result = null
          else result = this.matches(reverse, Pos(result.to.line + 1, 0))
        }
      }

      if (result) {
        this.pos = result
        this.atOccurrence = true
        return this.pos.match || true
      } else {
        var end = Pos(reverse ? this.doc.firstLine() : this.doc.lastLine() + 1, 0)
        this.pos = {from: end, to: end}
        return this.atOccurrence = false
      }
    },

    from: function() {if (this.atOccurrence) return this.pos.from},
    to: function() {if (this.atOccurrence) return this.pos.to},

    replace: function(newText, origin) {
      if (!this.atOccurrence) return
      var lines = CodeMirror.splitLines(newText)
      this.doc.replaceRange(lines, this.pos.from, this.pos.to, origin)
      this.pos.to = Pos(this.pos.from.line + lines.length - 1,
                        lines[lines.length - 1].length + (lines.length == 1 ? this.pos.from.ch : 0))
    }
  }

  CodeMirror.defineExtension("getSearchCursor", function(query, pos, caseFold) {
    return new SearchCursor(this.doc, query, pos, caseFold)
  })
  CodeMirror.defineDocExtension("getSearchCursor", function(query, pos, caseFold) {
    return new SearchCursor(this, query, pos, caseFold)
  })

  CodeMirror.defineExtension("selectMatches", function(query, caseFold) {
    var ranges = []
    var cur = this.getSearchCursor(query, this.getCursor("from"), caseFold)
    while (cur.findNext()) {
      if (CodeMirror.cmpPos(cur.to(), this.getCursor("to")) > 0) break
      ranges.push({anchor: cur.from(), head: cur.to()})
    }
    if (ranges.length)
      this.setSelections(ranges, 0)
  })
});

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

// Define search commands. Depends on dialog.js or another
// implementation of the openDialog method.

// Replace works a little oddly -- it will do the replace on the next
// Ctrl-G (or whatever is bound to findNext) press. You prevent a
// replace by making sure the match is no longer selected when hitting
// Ctrl-G.

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"), require("./searchcursor"), require("../dialog/dialog"));
  else if (typeof define == "function" && define.amd) // AMD
    define('codemirror/addon/search/search',["../../lib/codemirror", "./searchcursor", "../dialog/dialog"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  function searchOverlay(query, caseInsensitive) {
    if (typeof query == "string")
      query = new RegExp(query.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&"), caseInsensitive ? "gi" : "g");
    else if (!query.global)
      query = new RegExp(query.source, query.ignoreCase ? "gi" : "g");

    return {token: function(stream) {
      query.lastIndex = stream.pos;
      var match = query.exec(stream.string);
      if (match && match.index == stream.pos) {
        stream.pos += match[0].length || 1;
        return "searching";
      } else if (match) {
        stream.pos = match.index;
      } else {
        stream.skipToEnd();
      }
    }};
  }

  function SearchState() {
    this.posFrom = this.posTo = this.lastQuery = this.query = null;
    this.overlay = null;
  }

  function getSearchState(cm) {
    return cm.state.search || (cm.state.search = new SearchState());
  }

  function queryCaseInsensitive(query) {
    return typeof query == "string" && query == query.toLowerCase();
  }

  function getSearchCursor(cm, query, pos) {
    // Heuristic: if the query string is all lowercase, do a case insensitive search.
    return cm.getSearchCursor(query, pos, {caseFold: queryCaseInsensitive(query), multiline: true});
  }

  function persistentDialog(cm, text, deflt, onEnter, onKeyDown) {
    cm.openDialog(text, onEnter, {
      value: deflt,
      selectValueOnOpen: true,
      closeOnEnter: false,
      onClose: function() { clearSearch(cm); },
      onKeyDown: onKeyDown
    });
  }

  function dialog(cm, text, shortText, deflt, f) {
    if (cm.openDialog) cm.openDialog(text, f, {value: deflt, selectValueOnOpen: true});
    else f(prompt(shortText, deflt));
  }

  function confirmDialog(cm, text, shortText, fs) {
    if (cm.openConfirm) cm.openConfirm(text, fs);
    else if (confirm(shortText)) fs[0]();
  }

  function parseString(string) {
    return string.replace(/\\([nrt\\])/g, function(match, ch) {
      if (ch == "n") return "\n"
      if (ch == "r") return "\r"
      if (ch == "t") return "\t"
      if (ch == "\\") return "\\"
      return match
    })
  }

  function parseQuery(query) {
    var isRE = query.match(/^\/(.*)\/([a-z]*)$/);
    if (isRE) {
      try { query = new RegExp(isRE[1], isRE[2].indexOf("i") == -1 ? "" : "i"); }
      catch(e) {} // Not a regular expression after all, do a string search
    } else {
      query = parseString(query)
    }
    if (typeof query == "string" ? query == "" : query.test(""))
      query = /x^/;
    return query;
  }

  function startSearch(cm, state, query) {
    state.queryText = query;
    state.query = parseQuery(query);
    cm.removeOverlay(state.overlay, queryCaseInsensitive(state.query));
    state.overlay = searchOverlay(state.query, queryCaseInsensitive(state.query));
    cm.addOverlay(state.overlay);
    if (cm.showMatchesOnScrollbar) {
      if (state.annotate) { state.annotate.clear(); state.annotate = null; }
      state.annotate = cm.showMatchesOnScrollbar(state.query, queryCaseInsensitive(state.query));
    }
  }

  function doSearch(cm, rev, persistent, immediate) {
    var state = getSearchState(cm);
    if (state.query) return findNext(cm, rev);
    var q = cm.getSelection() || state.lastQuery;
    if (q instanceof RegExp && q.source == "x^") q = null
    if (persistent && cm.openDialog) {
      var hiding = null
      var searchNext = function(query, event) {
        CodeMirror.e_stop(event);
        if (!query) return;
        if (query != state.queryText) {
          startSearch(cm, state, query);
          state.posFrom = state.posTo = cm.getCursor();
        }
        if (hiding) hiding.style.opacity = 1
        findNext(cm, event.shiftKey, function(_, to) {
          var dialog
          if (to.line < 3 && document.querySelector &&
              (dialog = cm.display.wrapper.querySelector(".CodeMirror-dialog")) &&
              dialog.getBoundingClientRect().bottom - 4 > cm.cursorCoords(to, "window").top)
            (hiding = dialog).style.opacity = .4
        })
      };
      persistentDialog(cm, getQueryDialog(cm), q, searchNext, function(event, query) {
        var keyName = CodeMirror.keyName(event)
        var extra = cm.getOption('extraKeys'), cmd = (extra && extra[keyName]) || CodeMirror.keyMap[cm.getOption("keyMap")][keyName]
        if (cmd == "findNext" || cmd == "findPrev" ||
          cmd == "findPersistentNext" || cmd == "findPersistentPrev") {
          CodeMirror.e_stop(event);
          startSearch(cm, getSearchState(cm), query);
          cm.execCommand(cmd);
        } else if (cmd == "find" || cmd == "findPersistent") {
          CodeMirror.e_stop(event);
          searchNext(query, event);
        }
      });
      if (immediate && q) {
        startSearch(cm, state, q);
        findNext(cm, rev);
      }
    } else {
      dialog(cm, getQueryDialog(cm), "Search for:", q, function(query) {
        if (query && !state.query) cm.operation(function() {
          startSearch(cm, state, query);
          state.posFrom = state.posTo = cm.getCursor();
          findNext(cm, rev);
        });
      });
    }
  }

  function findNext(cm, rev, callback) {cm.operation(function() {
    var state = getSearchState(cm);
    var cursor = getSearchCursor(cm, state.query, rev ? state.posFrom : state.posTo);
    if (!cursor.find(rev)) {
      cursor = getSearchCursor(cm, state.query, rev ? CodeMirror.Pos(cm.lastLine()) : CodeMirror.Pos(cm.firstLine(), 0));
      if (!cursor.find(rev)) return;
    }
    cm.setSelection(cursor.from(), cursor.to());
    cm.scrollIntoView({from: cursor.from(), to: cursor.to()}, 20);
    state.posFrom = cursor.from(); state.posTo = cursor.to();
    if (callback) callback(cursor.from(), cursor.to())
  });}

  function clearSearch(cm) {cm.operation(function() {
    var state = getSearchState(cm);
    state.lastQuery = state.query;
    if (!state.query) return;
    state.query = state.queryText = null;
    cm.removeOverlay(state.overlay);
    if (state.annotate) { state.annotate.clear(); state.annotate = null; }
  });}


  function getQueryDialog(cm)  {
    return '<span class="CodeMirror-search-label">' + cm.phrase("Search:") + '</span> <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">' + cm.phrase("(Use /re/ syntax for regexp search)") + '</span>';
  }
  function getReplaceQueryDialog(cm) {
    return ' <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">' + cm.phrase("(Use /re/ syntax for regexp search)") + '</span>';
  }
  function getReplacementQueryDialog(cm) {
    return '<span class="CodeMirror-search-label">' + cm.phrase("With:") + '</span> <input type="text" style="width: 10em" class="CodeMirror-search-field"/>';
  }
  function getDoReplaceConfirm(cm) {
    return '<span class="CodeMirror-search-label">' + cm.phrase("Replace?") + '</span> <button>' + cm.phrase("Yes") + '</button> <button>' + cm.phrase("No") + '</button> <button>' + cm.phrase("All") + '</button> <button>' + cm.phrase("Stop") + '</button> ';
  }

  function replaceAll(cm, query, text) {
    cm.operation(function() {
      for (var cursor = getSearchCursor(cm, query); cursor.findNext();) {
        if (typeof query != "string") {
          var match = cm.getRange(cursor.from(), cursor.to()).match(query);
          cursor.replace(text.replace(/\$(\d)/g, function(_, i) {return match[i];}));
        } else cursor.replace(text);
      }
    });
  }

  function replace(cm, all) {
    if (cm.getOption("readOnly")) return;
    var query = cm.getSelection() || getSearchState(cm).lastQuery;
    var dialogText = '<span class="CodeMirror-search-label">' + (all ? cm.phrase("Replace all:") : cm.phrase("Replace:")) + '</span>';
    dialog(cm, dialogText + getReplaceQueryDialog(cm), dialogText, query, function(query) {
      if (!query) return;
      query = parseQuery(query);
      dialog(cm, getReplacementQueryDialog(cm), cm.phrase("Replace with:"), "", function(text) {
        text = parseString(text)
        if (all) {
          replaceAll(cm, query, text)
        } else {
          clearSearch(cm);
          var cursor = getSearchCursor(cm, query, cm.getCursor("from"));
          var advance = function() {
            var start = cursor.from(), match;
            if (!(match = cursor.findNext())) {
              cursor = getSearchCursor(cm, query);
              if (!(match = cursor.findNext()) ||
                  (start && cursor.from().line == start.line && cursor.from().ch == start.ch)) return;
            }
            cm.setSelection(cursor.from(), cursor.to());
            cm.scrollIntoView({from: cursor.from(), to: cursor.to()});
            confirmDialog(cm, getDoReplaceConfirm(cm), cm.phrase("Replace?"),
                          [function() {doReplace(match);}, advance,
                           function() {replaceAll(cm, query, text)}]);
          };
          var doReplace = function(match) {
            cursor.replace(typeof query == "string" ? text :
                           text.replace(/\$(\d)/g, function(_, i) {return match[i];}));
            advance();
          };
          advance();
        }
      });
    });
  }

  CodeMirror.commands.find = function(cm) {clearSearch(cm); doSearch(cm);};
  CodeMirror.commands.findPersistent = function(cm) {clearSearch(cm); doSearch(cm, false, true);};
  CodeMirror.commands.findPersistentNext = function(cm) {doSearch(cm, false, true, true);};
  CodeMirror.commands.findPersistentPrev = function(cm) {doSearch(cm, true, true, true);};
  CodeMirror.commands.findNext = doSearch;
  CodeMirror.commands.findPrev = function(cm) {doSearch(cm, true);};
  CodeMirror.commands.clearSearch = clearSearch;
  CodeMirror.commands.replace = replace;
  CodeMirror.commands.replaceAll = function(cm) {replace(cm, true);};
});

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define('codemirror/keymap/emacs',["../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  var Pos = CodeMirror.Pos;
  function posEq(a, b) { return a.line == b.line && a.ch == b.ch; }

  // Kill 'ring'

  var killRing = [];
  function addToRing(str) {
    killRing.push(str);
    if (killRing.length > 50) killRing.shift();
  }
  function growRingTop(str) {
    if (!killRing.length) return addToRing(str);
    killRing[killRing.length - 1] += str;
  }
  function getFromRing(n) { return killRing[killRing.length - (n ? Math.min(n, 1) : 1)] || ""; }
  function popFromRing() { if (killRing.length > 1) killRing.pop(); return getFromRing(); }

  var lastKill = null;

  function kill(cm, from, to, ring, text) {
    if (text == null) text = cm.getRange(from, to);

    if (ring == "grow" && lastKill && lastKill.cm == cm && posEq(from, lastKill.pos) && cm.isClean(lastKill.gen))
      growRingTop(text);
    else if (ring !== false)
      addToRing(text);
    cm.replaceRange("", from, to, "+delete");

    if (ring == "grow") lastKill = {cm: cm, pos: from, gen: cm.changeGeneration()};
    else lastKill = null;
  }

  // Boundaries of various units

  function byChar(cm, pos, dir) {
    return cm.findPosH(pos, dir, "char", true);
  }

  function byWord(cm, pos, dir) {
    return cm.findPosH(pos, dir, "word", true);
  }

  function byLine(cm, pos, dir) {
    return cm.findPosV(pos, dir, "line", cm.doc.sel.goalColumn);
  }

  function byPage(cm, pos, dir) {
    return cm.findPosV(pos, dir, "page", cm.doc.sel.goalColumn);
  }

  function byParagraph(cm, pos, dir) {
    var no = pos.line, line = cm.getLine(no);
    var sawText = /\S/.test(dir < 0 ? line.slice(0, pos.ch) : line.slice(pos.ch));
    var fst = cm.firstLine(), lst = cm.lastLine();
    for (;;) {
      no += dir;
      if (no < fst || no > lst)
        return cm.clipPos(Pos(no - dir, dir < 0 ? 0 : null));
      line = cm.getLine(no);
      var hasText = /\S/.test(line);
      if (hasText) sawText = true;
      else if (sawText) return Pos(no, 0);
    }
  }

  function bySentence(cm, pos, dir) {
    var line = pos.line, ch = pos.ch;
    var text = cm.getLine(pos.line), sawWord = false;
    for (;;) {
      var next = text.charAt(ch + (dir < 0 ? -1 : 0));
      if (!next) { // End/beginning of line reached
        if (line == (dir < 0 ? cm.firstLine() : cm.lastLine())) return Pos(line, ch);
        text = cm.getLine(line + dir);
        if (!/\S/.test(text)) return Pos(line, ch);
        line += dir;
        ch = dir < 0 ? text.length : 0;
        continue;
      }
      if (sawWord && /[!?.]/.test(next)) return Pos(line, ch + (dir > 0 ? 1 : 0));
      if (!sawWord) sawWord = /\w/.test(next);
      ch += dir;
    }
  }

  function byExpr(cm, pos, dir) {
    var wrap;
    if (cm.findMatchingBracket && (wrap = cm.findMatchingBracket(pos, {strict: true}))
        && wrap.match && (wrap.forward ? 1 : -1) == dir)
      return dir > 0 ? Pos(wrap.to.line, wrap.to.ch + 1) : wrap.to;

    for (var first = true;; first = false) {
      var token = cm.getTokenAt(pos);
      var after = Pos(pos.line, dir < 0 ? token.start : token.end);
      if (first && dir > 0 && token.end == pos.ch || !/\w/.test(token.string)) {
        var newPos = cm.findPosH(after, dir, "char");
        if (posEq(after, newPos)) return pos;
        else pos = newPos;
      } else {
        return after;
      }
    }
  }

  // Prefixes (only crudely supported)

  function getPrefix(cm, precise) {
    var digits = cm.state.emacsPrefix;
    if (!digits) return precise ? null : 1;
    clearPrefix(cm);
    return digits == "-" ? -1 : Number(digits);
  }

  function repeated(cmd) {
    var f = typeof cmd == "string" ? function(cm) { cm.execCommand(cmd); } : cmd;
    return function(cm) {
      var prefix = getPrefix(cm);
      f(cm);
      for (var i = 1; i < prefix; ++i) f(cm);
    };
  }

  function findEnd(cm, pos, by, dir) {
    var prefix = getPrefix(cm);
    if (prefix < 0) { dir = -dir; prefix = -prefix; }
    for (var i = 0; i < prefix; ++i) {
      var newPos = by(cm, pos, dir);
      if (posEq(newPos, pos)) break;
      pos = newPos;
    }
    return pos;
  }

  function move(by, dir) {
    var f = function(cm) {
      cm.extendSelection(findEnd(cm, cm.getCursor(), by, dir));
    };
    f.motion = true;
    return f;
  }

  function killTo(cm, by, dir, ring) {
    var selections = cm.listSelections(), cursor;
    var i = selections.length;
    while (i--) {
      cursor = selections[i].head;
      kill(cm, cursor, findEnd(cm, cursor, by, dir), ring);
    }
  }

  function killRegion(cm, ring) {
    if (cm.somethingSelected()) {
      var selections = cm.listSelections(), selection;
      var i = selections.length;
      while (i--) {
        selection = selections[i];
        kill(cm, selection.anchor, selection.head, ring);
      }
      return true;
    }
  }

  function addPrefix(cm, digit) {
    if (cm.state.emacsPrefix) {
      if (digit != "-") cm.state.emacsPrefix += digit;
      return;
    }
    // Not active yet
    cm.state.emacsPrefix = digit;
    cm.on("keyHandled", maybeClearPrefix);
    cm.on("inputRead", maybeDuplicateInput);
  }

  var prefixPreservingKeys = {"Alt-G": true, "Ctrl-X": true, "Ctrl-Q": true, "Ctrl-U": true};

  function maybeClearPrefix(cm, arg) {
    if (!cm.state.emacsPrefixMap && !prefixPreservingKeys.hasOwnProperty(arg))
      clearPrefix(cm);
  }

  function clearPrefix(cm) {
    cm.state.emacsPrefix = null;
    cm.off("keyHandled", maybeClearPrefix);
    cm.off("inputRead", maybeDuplicateInput);
  }

  function maybeDuplicateInput(cm, event) {
    var dup = getPrefix(cm);
    if (dup > 1 && event.origin == "+input") {
      var one = event.text.join("\n"), txt = "";
      for (var i = 1; i < dup; ++i) txt += one;
      cm.replaceSelection(txt);
    }
  }

  function addPrefixMap(cm) {
    cm.state.emacsPrefixMap = true;
    cm.addKeyMap(prefixMap);
    cm.on("keyHandled", maybeRemovePrefixMap);
    cm.on("inputRead", maybeRemovePrefixMap);
  }

  function maybeRemovePrefixMap(cm, arg) {
    if (typeof arg == "string" && (/^\d$/.test(arg) || arg == "Ctrl-U")) return;
    cm.removeKeyMap(prefixMap);
    cm.state.emacsPrefixMap = false;
    cm.off("keyHandled", maybeRemovePrefixMap);
    cm.off("inputRead", maybeRemovePrefixMap);
  }

  // Utilities

  function setMark(cm) {
    cm.setCursor(cm.getCursor());
    cm.setExtending(!cm.getExtending());
    cm.on("change", function() { cm.setExtending(false); });
  }

  function clearMark(cm) {
    cm.setExtending(false);
    cm.setCursor(cm.getCursor());
  }

  function getInput(cm, msg, f) {
    if (cm.openDialog)
      cm.openDialog(msg + ": <input type=\"text\" style=\"width: 10em\"/>", f, {bottom: true});
    else
      f(prompt(msg, ""));
  }

  function operateOnWord(cm, op) {
    var start = cm.getCursor(), end = cm.findPosH(start, 1, "word");
    cm.replaceRange(op(cm.getRange(start, end)), start, end);
    cm.setCursor(end);
  }

  function toEnclosingExpr(cm) {
    var pos = cm.getCursor(), line = pos.line, ch = pos.ch;
    var stack = [];
    while (line >= cm.firstLine()) {
      var text = cm.getLine(line);
      for (var i = ch == null ? text.length : ch; i > 0;) {
        var ch = text.charAt(--i);
        if (ch == ")")
          stack.push("(");
        else if (ch == "]")
          stack.push("[");
        else if (ch == "}")
          stack.push("{");
        else if (/[\(\{\[]/.test(ch) && (!stack.length || stack.pop() != ch))
          return cm.extendSelection(Pos(line, i));
      }
      --line; ch = null;
    }
  }

  function quit(cm) {
    cm.execCommand("clearSearch");
    clearMark(cm);
  }

  CodeMirror.emacs = {kill: kill, killRegion: killRegion, repeated: repeated};

  // Actual keymap

  var keyMap = CodeMirror.keyMap.emacs = CodeMirror.normalizeKeyMap({
    "Ctrl-W": function(cm) {kill(cm, cm.getCursor("start"), cm.getCursor("end"), true);},
    "Ctrl-K": repeated(function(cm) {
      var start = cm.getCursor(), end = cm.clipPos(Pos(start.line));
      var text = cm.getRange(start, end);
      if (!/\S/.test(text)) {
        text += "\n";
        end = Pos(start.line + 1, 0);
      }
      kill(cm, start, end, "grow", text);
    }),
    "Alt-W": function(cm) {
      addToRing(cm.getSelection());
      clearMark(cm);
    },
    "Ctrl-Y": function(cm) {
      var start = cm.getCursor();
      cm.replaceRange(getFromRing(getPrefix(cm)), start, start, "paste");
      cm.setSelection(start, cm.getCursor());
    },
    "Alt-Y": function(cm) {cm.replaceSelection(popFromRing(), "around", "paste");},

    "Ctrl-Space": setMark, "Ctrl-Shift-2": setMark,

    "Ctrl-F": move(byChar, 1), "Ctrl-B": move(byChar, -1),
    "Right": move(byChar, 1), "Left": move(byChar, -1),
    "Ctrl-D": function(cm) { killTo(cm, byChar, 1, false); },
    "Delete": function(cm) { killRegion(cm, false) || killTo(cm, byChar, 1, false); },
    "Ctrl-H": function(cm) { killTo(cm, byChar, -1, false); },
    "Backspace": function(cm) { killRegion(cm, false) || killTo(cm, byChar, -1, false); },

    "Alt-F": move(byWord, 1), "Alt-B": move(byWord, -1),
    "Alt-Right": move(byWord, 1), "Alt-Left": move(byWord, -1),
    "Alt-D": function(cm) { killTo(cm, byWord, 1, "grow"); },
    "Alt-Backspace": function(cm) { killTo(cm, byWord, -1, "grow"); },

    "Ctrl-N": move(byLine, 1), "Ctrl-P": move(byLine, -1),
    "Down": move(byLine, 1), "Up": move(byLine, -1),
    "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
    "End": "goLineEnd", "Home": "goLineStart",

    "Alt-V": move(byPage, -1), "Ctrl-V": move(byPage, 1),
    "PageUp": move(byPage, -1), "PageDown": move(byPage, 1),

    "Ctrl-Up": move(byParagraph, -1), "Ctrl-Down": move(byParagraph, 1),

    "Alt-A": move(bySentence, -1), "Alt-E": move(bySentence, 1),
    "Alt-K": function(cm) { killTo(cm, bySentence, 1, "grow"); },

    "Ctrl-Alt-K": function(cm) { killTo(cm, byExpr, 1, "grow"); },
    "Ctrl-Alt-Backspace": function(cm) { killTo(cm, byExpr, -1, "grow"); },
    "Ctrl-Alt-F": move(byExpr, 1), "Ctrl-Alt-B": move(byExpr, -1, "grow"),

    "Shift-Ctrl-Alt-2": function(cm) {
      var cursor = cm.getCursor();
      cm.setSelection(findEnd(cm, cursor, byExpr, 1), cursor);
    },
    "Ctrl-Alt-T": function(cm) {
      var leftStart = byExpr(cm, cm.getCursor(), -1), leftEnd = byExpr(cm, leftStart, 1);
      var rightEnd = byExpr(cm, leftEnd, 1), rightStart = byExpr(cm, rightEnd, -1);
      cm.replaceRange(cm.getRange(rightStart, rightEnd) + cm.getRange(leftEnd, rightStart) +
                      cm.getRange(leftStart, leftEnd), leftStart, rightEnd);
    },
    "Ctrl-Alt-U": repeated(toEnclosingExpr),

    "Alt-Space": function(cm) {
      var pos = cm.getCursor(), from = pos.ch, to = pos.ch, text = cm.getLine(pos.line);
      while (from && /\s/.test(text.charAt(from - 1))) --from;
      while (to < text.length && /\s/.test(text.charAt(to))) ++to;
      cm.replaceRange(" ", Pos(pos.line, from), Pos(pos.line, to));
    },
    "Ctrl-O": repeated(function(cm) { cm.replaceSelection("\n", "start"); }),
    "Ctrl-T": repeated(function(cm) {
      cm.execCommand("transposeChars");
    }),

    "Alt-C": repeated(function(cm) {
      operateOnWord(cm, function(w) {
        var letter = w.search(/\w/);
        if (letter == -1) return w;
        return w.slice(0, letter) + w.charAt(letter).toUpperCase() + w.slice(letter + 1).toLowerCase();
      });
    }),
    "Alt-U": repeated(function(cm) {
      operateOnWord(cm, function(w) { return w.toUpperCase(); });
    }),
    "Alt-L": repeated(function(cm) {
      operateOnWord(cm, function(w) { return w.toLowerCase(); });
    }),

    "Alt-;": "toggleComment",

    "Ctrl-/": repeated("undo"), "Shift-Ctrl--": repeated("undo"),
    "Ctrl-Z": repeated("undo"), "Cmd-Z": repeated("undo"),
    "Shift-Ctrl-Z": "redo",
    "Shift-Alt-,": "goDocStart", "Shift-Alt-.": "goDocEnd",
    "Ctrl-S": "findPersistentNext", "Ctrl-R": "findPersistentPrev", "Ctrl-G": quit, "Shift-Alt-5": "replace",
    "Alt-/": "autocomplete",
    "Enter": "newlineAndIndent",
    "Ctrl-J": repeated(function(cm) { cm.replaceSelection("\n", "end"); }),
    "Tab": "indentAuto",

    "Alt-G G": function(cm) {
      var prefix = getPrefix(cm, true);
      if (prefix != null && prefix > 0) return cm.setCursor(prefix - 1);

      getInput(cm, "Goto line", function(str) {
        var num;
        if (str && !isNaN(num = Number(str)) && num == (num|0) && num > 0)
          cm.setCursor(num - 1);
      });
    },

    "Ctrl-X Tab": function(cm) {
      cm.indentSelection(getPrefix(cm, true) || cm.getOption("indentUnit"));
    },
    "Ctrl-X Ctrl-X": function(cm) {
      cm.setSelection(cm.getCursor("head"), cm.getCursor("anchor"));
    },
    "Ctrl-X Ctrl-S": "save",
    "Ctrl-X Ctrl-W": "save",
    "Ctrl-X S": "saveAll",
    "Ctrl-X F": "open",
    "Ctrl-X U": repeated("undo"),
    "Ctrl-X K": "close",
    "Ctrl-X Delete": function(cm) { kill(cm, cm.getCursor(), bySentence(cm, cm.getCursor(), 1), "grow"); },
    "Ctrl-X H": "selectAll",

    "Ctrl-Q Tab": repeated("insertTab"),
    "Ctrl-U": addPrefixMap,
    "fallthrough": "default"
  });

  var prefixMap = {"Ctrl-G": clearPrefix};
  function regPrefix(d) {
    prefixMap[d] = function(cm) { addPrefix(cm, d); };
    keyMap["Ctrl-" + d] = function(cm) { addPrefix(cm, d); };
    prefixPreservingKeys["Ctrl-" + d] = true;
  }
  for (var i = 0; i < 10; ++i) regPrefix(String(i));
  regPrefix("-");
});

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

// A rough approximation of Sublime Text's keybindings
// Depends on addon/search/searchcursor.js and optionally addon/dialog/dialogs.js

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../lib/codemirror"), require("../addon/search/searchcursor"), require("../addon/edit/matchbrackets"));
  else if (typeof define == "function" && define.amd) // AMD
    define('codemirror/keymap/sublime',["../lib/codemirror", "../addon/search/searchcursor", "../addon/edit/matchbrackets"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  var cmds = CodeMirror.commands;
  var Pos = CodeMirror.Pos;

  // This is not exactly Sublime's algorithm. I couldn't make heads or tails of that.
  function findPosSubword(doc, start, dir) {
    if (dir < 0 && start.ch == 0) return doc.clipPos(Pos(start.line - 1));
    var line = doc.getLine(start.line);
    if (dir > 0 && start.ch >= line.length) return doc.clipPos(Pos(start.line + 1, 0));
    var state = "start", type, startPos = start.ch;
    for (var pos = startPos, e = dir < 0 ? 0 : line.length, i = 0; pos != e; pos += dir, i++) {
      var next = line.charAt(dir < 0 ? pos - 1 : pos);
      var cat = next != "_" && CodeMirror.isWordChar(next) ? "w" : "o";
      if (cat == "w" && next.toUpperCase() == next) cat = "W";
      if (state == "start") {
        if (cat != "o") { state = "in"; type = cat; }
        else startPos = pos + dir
      } else if (state == "in") {
        if (type != cat) {
          if (type == "w" && cat == "W" && dir < 0) pos--;
          if (type == "W" && cat == "w" && dir > 0) { // From uppercase to lowercase
            if (pos == startPos + 1) { type = "w"; continue; }
            else pos--;
          }
          break;
        }
      }
    }
    return Pos(start.line, pos);
  }

  function moveSubword(cm, dir) {
    cm.extendSelectionsBy(function(range) {
      if (cm.display.shift || cm.doc.extend || range.empty())
        return findPosSubword(cm.doc, range.head, dir);
      else
        return dir < 0 ? range.from() : range.to();
    });
  }

  cmds.goSubwordLeft = function(cm) { moveSubword(cm, -1); };
  cmds.goSubwordRight = function(cm) { moveSubword(cm, 1); };

  cmds.scrollLineUp = function(cm) {
    var info = cm.getScrollInfo();
    if (!cm.somethingSelected()) {
      var visibleBottomLine = cm.lineAtHeight(info.top + info.clientHeight, "local");
      if (cm.getCursor().line >= visibleBottomLine)
        cm.execCommand("goLineUp");
    }
    cm.scrollTo(null, info.top - cm.defaultTextHeight());
  };
  cmds.scrollLineDown = function(cm) {
    var info = cm.getScrollInfo();
    if (!cm.somethingSelected()) {
      var visibleTopLine = cm.lineAtHeight(info.top, "local")+1;
      if (cm.getCursor().line <= visibleTopLine)
        cm.execCommand("goLineDown");
    }
    cm.scrollTo(null, info.top + cm.defaultTextHeight());
  };

  cmds.splitSelectionByLine = function(cm) {
    var ranges = cm.listSelections(), lineRanges = [];
    for (var i = 0; i < ranges.length; i++) {
      var from = ranges[i].from(), to = ranges[i].to();
      for (var line = from.line; line <= to.line; ++line)
        if (!(to.line > from.line && line == to.line && to.ch == 0))
          lineRanges.push({anchor: line == from.line ? from : Pos(line, 0),
                           head: line == to.line ? to : Pos(line)});
    }
    cm.setSelections(lineRanges, 0);
  };

  cmds.singleSelectionTop = function(cm) {
    var range = cm.listSelections()[0];
    cm.setSelection(range.anchor, range.head, {scroll: false});
  };

  cmds.selectLine = function(cm) {
    var ranges = cm.listSelections(), extended = [];
    for (var i = 0; i < ranges.length; i++) {
      var range = ranges[i];
      extended.push({anchor: Pos(range.from().line, 0),
                     head: Pos(range.to().line + 1, 0)});
    }
    cm.setSelections(extended);
  };

  function insertLine(cm, above) {
    if (cm.isReadOnly()) return CodeMirror.Pass
    cm.operation(function() {
      var len = cm.listSelections().length, newSelection = [], last = -1;
      for (var i = 0; i < len; i++) {
        var head = cm.listSelections()[i].head;
        if (head.line <= last) continue;
        var at = Pos(head.line + (above ? 0 : 1), 0);
        cm.replaceRange("\n", at, null, "+insertLine");
        cm.indentLine(at.line, null, true);
        newSelection.push({head: at, anchor: at});
        last = head.line + 1;
      }
      cm.setSelections(newSelection);
    });
    cm.execCommand("indentAuto");
  }

  cmds.insertLineAfter = function(cm) { return insertLine(cm, false); };

  cmds.insertLineBefore = function(cm) { return insertLine(cm, true); };

  function wordAt(cm, pos) {
    var start = pos.ch, end = start, line = cm.getLine(pos.line);
    while (start && CodeMirror.isWordChar(line.charAt(start - 1))) --start;
    while (end < line.length && CodeMirror.isWordChar(line.charAt(end))) ++end;
    return {from: Pos(pos.line, start), to: Pos(pos.line, end), word: line.slice(start, end)};
  }

  cmds.selectNextOccurrence = function(cm) {
    var from = cm.getCursor("from"), to = cm.getCursor("to");
    var fullWord = cm.state.sublimeFindFullWord == cm.doc.sel;
    if (CodeMirror.cmpPos(from, to) == 0) {
      var word = wordAt(cm, from);
      if (!word.word) return;
      cm.setSelection(word.from, word.to);
      fullWord = true;
    } else {
      var text = cm.getRange(from, to);
      var query = fullWord ? new RegExp("\\b" + text + "\\b") : text;
      var cur = cm.getSearchCursor(query, to);
      var found = cur.findNext();
      if (!found) {
        cur = cm.getSearchCursor(query, Pos(cm.firstLine(), 0));
        found = cur.findNext();
      }
      if (!found || isSelectedRange(cm.listSelections(), cur.from(), cur.to())) return
      cm.addSelection(cur.from(), cur.to());
    }
    if (fullWord)
      cm.state.sublimeFindFullWord = cm.doc.sel;
  };

  cmds.skipAndSelectNextOccurrence = function(cm) {
    var prevAnchor = cm.getCursor("anchor"), prevHead = cm.getCursor("head");
    cmds.selectNextOccurrence(cm);
    if (CodeMirror.cmpPos(prevAnchor, prevHead) != 0) {
      cm.doc.setSelections(cm.doc.listSelections()
          .filter(function (sel) {
            return sel.anchor != prevAnchor || sel.head != prevHead;
          }));
    }
  }

  function addCursorToSelection(cm, dir) {
    var ranges = cm.listSelections(), newRanges = [];
    for (var i = 0; i < ranges.length; i++) {
      var range = ranges[i];
      var newAnchor = cm.findPosV(
          range.anchor, dir, "line", range.anchor.goalColumn);
      var newHead = cm.findPosV(
          range.head, dir, "line", range.head.goalColumn);
      newAnchor.goalColumn = range.anchor.goalColumn != null ?
          range.anchor.goalColumn : cm.cursorCoords(range.anchor, "div").left;
      newHead.goalColumn = range.head.goalColumn != null ?
          range.head.goalColumn : cm.cursorCoords(range.head, "div").left;
      var newRange = {anchor: newAnchor, head: newHead};
      newRanges.push(range);
      newRanges.push(newRange);
    }
    cm.setSelections(newRanges);
  }
  cmds.addCursorToPrevLine = function(cm) { addCursorToSelection(cm, -1); };
  cmds.addCursorToNextLine = function(cm) { addCursorToSelection(cm, 1); };

  function isSelectedRange(ranges, from, to) {
    for (var i = 0; i < ranges.length; i++)
      if (CodeMirror.cmpPos(ranges[i].from(), from) == 0 &&
          CodeMirror.cmpPos(ranges[i].to(), to) == 0) return true
    return false
  }

  var mirror = "(){}[]";
  function selectBetweenBrackets(cm) {
    var ranges = cm.listSelections(), newRanges = []
    for (var i = 0; i < ranges.length; i++) {
      var range = ranges[i], pos = range.head, opening = cm.scanForBracket(pos, -1);
      if (!opening) return false;
      for (;;) {
        var closing = cm.scanForBracket(pos, 1);
        if (!closing) return false;
        if (closing.ch == mirror.charAt(mirror.indexOf(opening.ch) + 1)) {
          var startPos = Pos(opening.pos.line, opening.pos.ch + 1);
          if (CodeMirror.cmpPos(startPos, range.from()) == 0 &&
              CodeMirror.cmpPos(closing.pos, range.to()) == 0) {
            opening = cm.scanForBracket(opening.pos, -1);
            if (!opening) return false;
          } else {
            newRanges.push({anchor: startPos, head: closing.pos});
            break;
          }
        }
        pos = Pos(closing.pos.line, closing.pos.ch + 1);
      }
    }
    cm.setSelections(newRanges);
    return true;
  }

  cmds.selectScope = function(cm) {
    selectBetweenBrackets(cm) || cm.execCommand("selectAll");
  };
  cmds.selectBetweenBrackets = function(cm) {
    if (!selectBetweenBrackets(cm)) return CodeMirror.Pass;
  };

  function puncType(type) {
    return !type ? null : /\bpunctuation\b/.test(type) ? type : undefined
  }

  cmds.goToBracket = function(cm) {
    cm.extendSelectionsBy(function(range) {
      var next = cm.scanForBracket(range.head, 1, puncType(cm.getTokenTypeAt(range.head)));
      if (next && CodeMirror.cmpPos(next.pos, range.head) != 0) return next.pos;
      var prev = cm.scanForBracket(range.head, -1, puncType(cm.getTokenTypeAt(Pos(range.head.line, range.head.ch + 1))));
      return prev && Pos(prev.pos.line, prev.pos.ch + 1) || range.head;
    });
  };

  cmds.swapLineUp = function(cm) {
    if (cm.isReadOnly()) return CodeMirror.Pass
    var ranges = cm.listSelections(), linesToMove = [], at = cm.firstLine() - 1, newSels = [];
    for (var i = 0; i < ranges.length; i++) {
      var range = ranges[i], from = range.from().line - 1, to = range.to().line;
      newSels.push({anchor: Pos(range.anchor.line - 1, range.anchor.ch),
                    head: Pos(range.head.line - 1, range.head.ch)});
      if (range.to().ch == 0 && !range.empty()) --to;
      if (from > at) linesToMove.push(from, to);
      else if (linesToMove.length) linesToMove[linesToMove.length - 1] = to;
      at = to;
    }
    cm.operation(function() {
      for (var i = 0; i < linesToMove.length; i += 2) {
        var from = linesToMove[i], to = linesToMove[i + 1];
        var line = cm.getLine(from);
        cm.replaceRange("", Pos(from, 0), Pos(from + 1, 0), "+swapLine");
        if (to > cm.lastLine())
          cm.replaceRange("\n" + line, Pos(cm.lastLine()), null, "+swapLine");
        else
          cm.replaceRange(line + "\n", Pos(to, 0), null, "+swapLine");
      }
      cm.setSelections(newSels);
      cm.scrollIntoView();
    });
  };

  cmds.swapLineDown = function(cm) {
    if (cm.isReadOnly()) return CodeMirror.Pass
    var ranges = cm.listSelections(), linesToMove = [], at = cm.lastLine() + 1;
    for (var i = ranges.length - 1; i >= 0; i--) {
      var range = ranges[i], from = range.to().line + 1, to = range.from().line;
      if (range.to().ch == 0 && !range.empty()) from--;
      if (from < at) linesToMove.push(from, to);
      else if (linesToMove.length) linesToMove[linesToMove.length - 1] = to;
      at = to;
    }
    cm.operation(function() {
      for (var i = linesToMove.length - 2; i >= 0; i -= 2) {
        var from = linesToMove[i], to = linesToMove[i + 1];
        var line = cm.getLine(from);
        if (from == cm.lastLine())
          cm.replaceRange("", Pos(from - 1), Pos(from), "+swapLine");
        else
          cm.replaceRange("", Pos(from, 0), Pos(from + 1, 0), "+swapLine");
        cm.replaceRange(line + "\n", Pos(to, 0), null, "+swapLine");
      }
      cm.scrollIntoView();
    });
  };

  cmds.toggleCommentIndented = function(cm) {
    cm.toggleComment({ indent: true });
  }

  cmds.joinLines = function(cm) {
    var ranges = cm.listSelections(), joined = [];
    for (var i = 0; i < ranges.length; i++) {
      var range = ranges[i], from = range.from();
      var start = from.line, end = range.to().line;
      while (i < ranges.length - 1 && ranges[i + 1].from().line == end)
        end = ranges[++i].to().line;
      joined.push({start: start, end: end, anchor: !range.empty() && from});
    }
    cm.operation(function() {
      var offset = 0, ranges = [];
      for (var i = 0; i < joined.length; i++) {
        var obj = joined[i];
        var anchor = obj.anchor && Pos(obj.anchor.line - offset, obj.anchor.ch), head;
        for (var line = obj.start; line <= obj.end; line++) {
          var actual = line - offset;
          if (line == obj.end) head = Pos(actual, cm.getLine(actual).length + 1);
          if (actual < cm.lastLine()) {
            cm.replaceRange(" ", Pos(actual), Pos(actual + 1, /^\s*/.exec(cm.getLine(actual + 1))[0].length));
            ++offset;
          }
        }
        ranges.push({anchor: anchor || head, head: head});
      }
      cm.setSelections(ranges, 0);
    });
  };

  cmds.duplicateLine = function(cm) {
    cm.operation(function() {
      var rangeCount = cm.listSelections().length;
      for (var i = 0; i < rangeCount; i++) {
        var range = cm.listSelections()[i];
        if (range.empty())
          cm.replaceRange(cm.getLine(range.head.line) + "\n", Pos(range.head.line, 0));
        else
          cm.replaceRange(cm.getRange(range.from(), range.to()), range.from());
      }
      cm.scrollIntoView();
    });
  };


  function sortLines(cm, caseSensitive) {
    if (cm.isReadOnly()) return CodeMirror.Pass
    var ranges = cm.listSelections(), toSort = [], selected;
    for (var i = 0; i < ranges.length; i++) {
      var range = ranges[i];
      if (range.empty()) continue;
      var from = range.from().line, to = range.to().line;
      while (i < ranges.length - 1 && ranges[i + 1].from().line == to)
        to = ranges[++i].to().line;
      if (!ranges[i].to().ch) to--;
      toSort.push(from, to);
    }
    if (toSort.length) selected = true;
    else toSort.push(cm.firstLine(), cm.lastLine());

    cm.operation(function() {
      var ranges = [];
      for (var i = 0; i < toSort.length; i += 2) {
        var from = toSort[i], to = toSort[i + 1];
        var start = Pos(from, 0), end = Pos(to);
        var lines = cm.getRange(start, end, false);
        if (caseSensitive)
          lines.sort();
        else
          lines.sort(function(a, b) {
            var au = a.toUpperCase(), bu = b.toUpperCase();
            if (au != bu) { a = au; b = bu; }
            return a < b ? -1 : a == b ? 0 : 1;
          });
        cm.replaceRange(lines, start, end);
        if (selected) ranges.push({anchor: start, head: Pos(to + 1, 0)});
      }
      if (selected) cm.setSelections(ranges, 0);
    });
  }

  cmds.sortLines = function(cm) { sortLines(cm, true); };
  cmds.sortLinesInsensitive = function(cm) { sortLines(cm, false); };

  cmds.nextBookmark = function(cm) {
    var marks = cm.state.sublimeBookmarks;
    if (marks) while (marks.length) {
      var current = marks.shift();
      var found = current.find();
      if (found) {
        marks.push(current);
        return cm.setSelection(found.from, found.to);
      }
    }
  };

  cmds.prevBookmark = function(cm) {
    var marks = cm.state.sublimeBookmarks;
    if (marks) while (marks.length) {
      marks.unshift(marks.pop());
      var found = marks[marks.length - 1].find();
      if (!found)
        marks.pop();
      else
        return cm.setSelection(found.from, found.to);
    }
  };

  cmds.toggleBookmark = function(cm) {
    var ranges = cm.listSelections();
    var marks = cm.state.sublimeBookmarks || (cm.state.sublimeBookmarks = []);
    for (var i = 0; i < ranges.length; i++) {
      var from = ranges[i].from(), to = ranges[i].to();
      var found = ranges[i].empty() ? cm.findMarksAt(from) : cm.findMarks(from, to);
      for (var j = 0; j < found.length; j++) {
        if (found[j].sublimeBookmark) {
          found[j].clear();
          for (var k = 0; k < marks.length; k++)
            if (marks[k] == found[j])
              marks.splice(k--, 1);
          break;
        }
      }
      if (j == found.length)
        marks.push(cm.markText(from, to, {sublimeBookmark: true, clearWhenEmpty: false}));
    }
  };

  cmds.clearBookmarks = function(cm) {
    var marks = cm.state.sublimeBookmarks;
    if (marks) for (var i = 0; i < marks.length; i++) marks[i].clear();
    marks.length = 0;
  };

  cmds.selectBookmarks = function(cm) {
    var marks = cm.state.sublimeBookmarks, ranges = [];
    if (marks) for (var i = 0; i < marks.length; i++) {
      var found = marks[i].find();
      if (!found)
        marks.splice(i--, 0);
      else
        ranges.push({anchor: found.from, head: found.to});
    }
    if (ranges.length)
      cm.setSelections(ranges, 0);
  };

  function modifyWordOrSelection(cm, mod) {
    cm.operation(function() {
      var ranges = cm.listSelections(), indices = [], replacements = [];
      for (var i = 0; i < ranges.length; i++) {
        var range = ranges[i];
        if (range.empty()) { indices.push(i); replacements.push(""); }
        else replacements.push(mod(cm.getRange(range.from(), range.to())));
      }
      cm.replaceSelections(replacements, "around", "case");
      for (var i = indices.length - 1, at; i >= 0; i--) {
        var range = ranges[indices[i]];
        if (at && CodeMirror.cmpPos(range.head, at) > 0) continue;
        var word = wordAt(cm, range.head);
        at = word.from;
        cm.replaceRange(mod(word.word), word.from, word.to);
      }
    });
  }

  cmds.smartBackspace = function(cm) {
    if (cm.somethingSelected()) return CodeMirror.Pass;

    cm.operation(function() {
      var cursors = cm.listSelections();
      var indentUnit = cm.getOption("indentUnit");

      for (var i = cursors.length - 1; i >= 0; i--) {
        var cursor = cursors[i].head;
        var toStartOfLine = cm.getRange({line: cursor.line, ch: 0}, cursor);
        var column = CodeMirror.countColumn(toStartOfLine, null, cm.getOption("tabSize"));

        // Delete by one character by default
        var deletePos = cm.findPosH(cursor, -1, "char", false);

        if (toStartOfLine && !/\S/.test(toStartOfLine) && column % indentUnit == 0) {
          var prevIndent = new Pos(cursor.line,
            CodeMirror.findColumn(toStartOfLine, column - indentUnit, indentUnit));

          // Smart delete only if we found a valid prevIndent location
          if (prevIndent.ch != cursor.ch) deletePos = prevIndent;
        }

        cm.replaceRange("", deletePos, cursor, "+delete");
      }
    });
  };

  cmds.delLineRight = function(cm) {
    cm.operation(function() {
      var ranges = cm.listSelections();
      for (var i = ranges.length - 1; i >= 0; i--)
        cm.replaceRange("", ranges[i].anchor, Pos(ranges[i].to().line), "+delete");
      cm.scrollIntoView();
    });
  };

  cmds.upcaseAtCursor = function(cm) {
    modifyWordOrSelection(cm, function(str) { return str.toUpperCase(); });
  };
  cmds.downcaseAtCursor = function(cm) {
    modifyWordOrSelection(cm, function(str) { return str.toLowerCase(); });
  };

  cmds.setSublimeMark = function(cm) {
    if (cm.state.sublimeMark) cm.state.sublimeMark.clear();
    cm.state.sublimeMark = cm.setBookmark(cm.getCursor());
  };
  cmds.selectToSublimeMark = function(cm) {
    var found = cm.state.sublimeMark && cm.state.sublimeMark.find();
    if (found) cm.setSelection(cm.getCursor(), found);
  };
  cmds.deleteToSublimeMark = function(cm) {
    var found = cm.state.sublimeMark && cm.state.sublimeMark.find();
    if (found) {
      var from = cm.getCursor(), to = found;
      if (CodeMirror.cmpPos(from, to) > 0) { var tmp = to; to = from; from = tmp; }
      cm.state.sublimeKilled = cm.getRange(from, to);
      cm.replaceRange("", from, to);
    }
  };
  cmds.swapWithSublimeMark = function(cm) {
    var found = cm.state.sublimeMark && cm.state.sublimeMark.find();
    if (found) {
      cm.state.sublimeMark.clear();
      cm.state.sublimeMark = cm.setBookmark(cm.getCursor());
      cm.setCursor(found);
    }
  };
  cmds.sublimeYank = function(cm) {
    if (cm.state.sublimeKilled != null)
      cm.replaceSelection(cm.state.sublimeKilled, null, "paste");
  };

  cmds.showInCenter = function(cm) {
    var pos = cm.cursorCoords(null, "local");
    cm.scrollTo(null, (pos.top + pos.bottom) / 2 - cm.getScrollInfo().clientHeight / 2);
  };

  function getTarget(cm) {
    var from = cm.getCursor("from"), to = cm.getCursor("to");
    if (CodeMirror.cmpPos(from, to) == 0) {
      var word = wordAt(cm, from);
      if (!word.word) return;
      from = word.from;
      to = word.to;
    }
    return {from: from, to: to, query: cm.getRange(from, to), word: word};
  }

  function findAndGoTo(cm, forward) {
    var target = getTarget(cm);
    if (!target) return;
    var query = target.query;
    var cur = cm.getSearchCursor(query, forward ? target.to : target.from);

    if (forward ? cur.findNext() : cur.findPrevious()) {
      cm.setSelection(cur.from(), cur.to());
    } else {
      cur = cm.getSearchCursor(query, forward ? Pos(cm.firstLine(), 0)
                                              : cm.clipPos(Pos(cm.lastLine())));
      if (forward ? cur.findNext() : cur.findPrevious())
        cm.setSelection(cur.from(), cur.to());
      else if (target.word)
        cm.setSelection(target.from, target.to);
    }
  };
  cmds.findUnder = function(cm) { findAndGoTo(cm, true); };
  cmds.findUnderPrevious = function(cm) { findAndGoTo(cm,false); };
  cmds.findAllUnder = function(cm) {
    var target = getTarget(cm);
    if (!target) return;
    var cur = cm.getSearchCursor(target.query);
    var matches = [];
    var primaryIndex = -1;
    while (cur.findNext()) {
      matches.push({anchor: cur.from(), head: cur.to()});
      if (cur.from().line <= target.from.line && cur.from().ch <= target.from.ch)
        primaryIndex++;
    }
    cm.setSelections(matches, primaryIndex);
  };


  var keyMap = CodeMirror.keyMap;
  keyMap.macSublime = {
    "Cmd-Left": "goLineStartSmart",
    "Shift-Tab": "indentLess",
    "Shift-Ctrl-K": "deleteLine",
    "Alt-Q": "wrapLines",
    "Ctrl-Left": "goSubwordLeft",
    "Ctrl-Right": "goSubwordRight",
    "Ctrl-Alt-Up": "scrollLineUp",
    "Ctrl-Alt-Down": "scrollLineDown",
    "Cmd-L": "selectLine",
    "Shift-Cmd-L": "splitSelectionByLine",
    "Esc": "singleSelectionTop",
    "Cmd-Enter": "insertLineAfter",
    "Shift-Cmd-Enter": "insertLineBefore",
    "Cmd-D": "selectNextOccurrence",
    "Shift-Cmd-Space": "selectScope",
    "Shift-Cmd-M": "selectBetweenBrackets",
    "Cmd-M": "goToBracket",
    "Cmd-Ctrl-Up": "swapLineUp",
    "Cmd-Ctrl-Down": "swapLineDown",
    "Cmd-/": "toggleCommentIndented",
    "Cmd-J": "joinLines",
    "Shift-Cmd-D": "duplicateLine",
    "F5": "sortLines",
    "Cmd-F5": "sortLinesInsensitive",
    "F2": "nextBookmark",
    "Shift-F2": "prevBookmark",
    "Cmd-F2": "toggleBookmark",
    "Shift-Cmd-F2": "clearBookmarks",
    "Alt-F2": "selectBookmarks",
    "Backspace": "smartBackspace",
    "Cmd-K Cmd-D": "skipAndSelectNextOccurrence",
    "Cmd-K Cmd-K": "delLineRight",
    "Cmd-K Cmd-U": "upcaseAtCursor",
    "Cmd-K Cmd-L": "downcaseAtCursor",
    "Cmd-K Cmd-Space": "setSublimeMark",
    "Cmd-K Cmd-A": "selectToSublimeMark",
    "Cmd-K Cmd-W": "deleteToSublimeMark",
    "Cmd-K Cmd-X": "swapWithSublimeMark",
    "Cmd-K Cmd-Y": "sublimeYank",
    "Cmd-K Cmd-C": "showInCenter",
    "Cmd-K Cmd-G": "clearBookmarks",
    "Cmd-K Cmd-Backspace": "delLineLeft",
    "Cmd-K Cmd-1": "foldAll",
    "Cmd-K Cmd-0": "unfoldAll",
    "Cmd-K Cmd-J": "unfoldAll",
    "Ctrl-Shift-Up": "addCursorToPrevLine",
    "Ctrl-Shift-Down": "addCursorToNextLine",
    "Cmd-F3": "findUnder",
    "Shift-Cmd-F3": "findUnderPrevious",
    "Alt-F3": "findAllUnder",
    "Shift-Cmd-[": "fold",
    "Shift-Cmd-]": "unfold",
    "Cmd-I": "findIncremental",
    "Shift-Cmd-I": "findIncrementalReverse",
    "Cmd-H": "replace",
    "F3": "findNext",
    "Shift-F3": "findPrev",
    "fallthrough": "macDefault"
  };
  CodeMirror.normalizeKeyMap(keyMap.macSublime);

  keyMap.pcSublime = {
    "Shift-Tab": "indentLess",
    "Shift-Ctrl-K": "deleteLine",
    "Alt-Q": "wrapLines",
    "Ctrl-T": "transposeChars",
    "Alt-Left": "goSubwordLeft",
    "Alt-Right": "goSubwordRight",
    "Ctrl-Up": "scrollLineUp",
    "Ctrl-Down": "scrollLineDown",
    "Ctrl-L": "selectLine",
    "Shift-Ctrl-L": "splitSelectionByLine",
    "Esc": "singleSelectionTop",
    "Ctrl-Enter": "insertLineAfter",
    "Shift-Ctrl-Enter": "insertLineBefore",
    "Ctrl-D": "selectNextOccurrence",
    "Shift-Ctrl-Space": "selectScope",
    "Shift-Ctrl-M": "selectBetweenBrackets",
    "Ctrl-M": "goToBracket",
    "Shift-Ctrl-Up": "swapLineUp",
    "Shift-Ctrl-Down": "swapLineDown",
    "Ctrl-/": "toggleCommentIndented",
    "Ctrl-J": "joinLines",
    "Shift-Ctrl-D": "duplicateLine",
    "F9": "sortLines",
    "Ctrl-F9": "sortLinesInsensitive",
    "F2": "nextBookmark",
    "Shift-F2": "prevBookmark",
    "Ctrl-F2": "toggleBookmark",
    "Shift-Ctrl-F2": "clearBookmarks",
    "Alt-F2": "selectBookmarks",
    "Backspace": "smartBackspace",
    "Ctrl-K Ctrl-D": "skipAndSelectNextOccurrence",
    "Ctrl-K Ctrl-K": "delLineRight",
    "Ctrl-K Ctrl-U": "upcaseAtCursor",
    "Ctrl-K Ctrl-L": "downcaseAtCursor",
    "Ctrl-K Ctrl-Space": "setSublimeMark",
    "Ctrl-K Ctrl-A": "selectToSublimeMark",
    "Ctrl-K Ctrl-W": "deleteToSublimeMark",
    "Ctrl-K Ctrl-X": "swapWithSublimeMark",
    "Ctrl-K Ctrl-Y": "sublimeYank",
    "Ctrl-K Ctrl-C": "showInCenter",
    "Ctrl-K Ctrl-G": "clearBookmarks",
    "Ctrl-K Ctrl-Backspace": "delLineLeft",
    "Ctrl-K Ctrl-1": "foldAll",
    "Ctrl-K Ctrl-0": "unfoldAll",
    "Ctrl-K Ctrl-J": "unfoldAll",
    "Ctrl-Alt-Up": "addCursorToPrevLine",
    "Ctrl-Alt-Down": "addCursorToNextLine",
    "Ctrl-F3": "findUnder",
    "Shift-Ctrl-F3": "findUnderPrevious",
    "Alt-F3": "findAllUnder",
    "Shift-Ctrl-[": "fold",
    "Shift-Ctrl-]": "unfold",
    "Ctrl-I": "findIncremental",
    "Shift-Ctrl-I": "findIncrementalReverse",
    "Ctrl-H": "replace",
    "F3": "findNext",
    "Shift-F3": "findPrev",
    "fallthrough": "pcDefault"
  };
  CodeMirror.normalizeKeyMap(keyMap.pcSublime);

  var mac = keyMap.default == keyMap.macDefault;
  keyMap.sublime = mac ? keyMap.macSublime : keyMap.pcSublime;
});

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

/**
 * Supported keybindings:
 *   Too many to list. Refer to defaultKeymap below.
 *
 * Supported Ex commands:
 *   Refer to defaultExCommandMap below.
 *
 * Registers: unnamed, -, a-z, A-Z, 0-9
 *   (Does not respect the special case for number registers when delete
 *    operator is made with these commands: %, (, ),  , /, ?, n, N, {, } )
 *   TODO: Implement the remaining registers.
 *
 * Marks: a-z, A-Z, and 0-9
 *   TODO: Implement the remaining special marks. They have more complex
 *       behavior.
 *
 * Events:
 *  'vim-mode-change' - raised on the editor anytime the current mode changes,
 *                      Event object: {mode: "visual", subMode: "linewise"}
 *
 * Code structure:
 *  1. Default keymap
 *  2. Variable declarations and short basic helpers
 *  3. Instance (External API) implementation
 *  4. Internal state tracking objects (input state, counter) implementation
 *     and instantiation
 *  5. Key handler (the main command dispatcher) implementation
 *  6. Motion, operator, and action implementations
 *  7. Helper functions for the key handler, motions, operators, and actions
 *  8. Set up Vim to work as a keymap for CodeMirror.
 *  9. Ex command implementations.
 */

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../lib/codemirror"), require("../addon/search/searchcursor"), require("../addon/dialog/dialog"), require("../addon/edit/matchbrackets.js"));
  else if (typeof define == "function" && define.amd) // AMD
    define('codemirror/keymap/vim',["../lib/codemirror", "../addon/search/searchcursor", "../addon/dialog/dialog", "../addon/edit/matchbrackets"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  'use strict';

  var defaultKeymap = [
    // Key to key mapping. This goes first to make it possible to override
    // existing mappings.
    { keys: '<Left>', type: 'keyToKey', toKeys: 'h' },
    { keys: '<Right>', type: 'keyToKey', toKeys: 'l' },
    { keys: '<Up>', type: 'keyToKey', toKeys: 'k' },
    { keys: '<Down>', type: 'keyToKey', toKeys: 'j' },
    { keys: '<Space>', type: 'keyToKey', toKeys: 'l' },
    { keys: '<BS>', type: 'keyToKey', toKeys: 'h', context: 'normal'},
    { keys: '<Del>', type: 'keyToKey', toKeys: 'x', context: 'normal'},
    { keys: '<C-Space>', type: 'keyToKey', toKeys: 'W' },
    { keys: '<C-BS>', type: 'keyToKey', toKeys: 'B', context: 'normal' },
    { keys: '<S-Space>', type: 'keyToKey', toKeys: 'w' },
    { keys: '<S-BS>', type: 'keyToKey', toKeys: 'b', context: 'normal' },
    { keys: '<C-n>', type: 'keyToKey', toKeys: 'j' },
    { keys: '<C-p>', type: 'keyToKey', toKeys: 'k' },
    { keys: '<C-[>', type: 'keyToKey', toKeys: '<Esc>' },
    { keys: '<C-c>', type: 'keyToKey', toKeys: '<Esc>' },
    { keys: '<C-[>', type: 'keyToKey', toKeys: '<Esc>', context: 'insert' },
    { keys: '<C-c>', type: 'keyToKey', toKeys: '<Esc>', context: 'insert' },
    { keys: 's', type: 'keyToKey', toKeys: 'cl', context: 'normal' },
    { keys: 's', type: 'keyToKey', toKeys: 'c', context: 'visual'},
    { keys: 'S', type: 'keyToKey', toKeys: 'cc', context: 'normal' },
    { keys: 'S', type: 'keyToKey', toKeys: 'VdO', context: 'visual' },
    { keys: '<Home>', type: 'keyToKey', toKeys: '0' },
    { keys: '<End>', type: 'keyToKey', toKeys: '$' },
    { keys: '<PageUp>', type: 'keyToKey', toKeys: '<C-b>' },
    { keys: '<PageDown>', type: 'keyToKey', toKeys: '<C-f>' },
    { keys: '<CR>', type: 'keyToKey', toKeys: 'j^', context: 'normal' },
    { keys: '<Ins>', type: 'action', action: 'toggleOverwrite', context: 'insert' },
    // Motions
    { keys: 'H', type: 'motion', motion: 'moveToTopLine', motionArgs: { linewise: true, toJumplist: true }},
    { keys: 'M', type: 'motion', motion: 'moveToMiddleLine', motionArgs: { linewise: true, toJumplist: true }},
    { keys: 'L', type: 'motion', motion: 'moveToBottomLine', motionArgs: { linewise: true, toJumplist: true }},
    { keys: 'h', type: 'motion', motion: 'moveByCharacters', motionArgs: { forward: false }},
    { keys: 'l', type: 'motion', motion: 'moveByCharacters', motionArgs: { forward: true }},
    { keys: 'j', type: 'motion', motion: 'moveByLines', motionArgs: { forward: true, linewise: true }},
    { keys: 'k', type: 'motion', motion: 'moveByLines', motionArgs: { forward: false, linewise: true }},
    { keys: 'gj', type: 'motion', motion: 'moveByDisplayLines', motionArgs: { forward: true }},
    { keys: 'gk', type: 'motion', motion: 'moveByDisplayLines', motionArgs: { forward: false }},
    { keys: 'w', type: 'motion', motion: 'moveByWords', motionArgs: { forward: true, wordEnd: false }},
    { keys: 'W', type: 'motion', motion: 'moveByWords', motionArgs: { forward: true, wordEnd: false, bigWord: true }},
    { keys: 'e', type: 'motion', motion: 'moveByWords', motionArgs: { forward: true, wordEnd: true, inclusive: true }},
    { keys: 'E', type: 'motion', motion: 'moveByWords', motionArgs: { forward: true, wordEnd: true, bigWord: true, inclusive: true }},
    { keys: 'b', type: 'motion', motion: 'moveByWords', motionArgs: { forward: false, wordEnd: false }},
    { keys: 'B', type: 'motion', motion: 'moveByWords', motionArgs: { forward: false, wordEnd: false, bigWord: true }},
    { keys: 'ge', type: 'motion', motion: 'moveByWords', motionArgs: { forward: false, wordEnd: true, inclusive: true }},
    { keys: 'gE', type: 'motion', motion: 'moveByWords', motionArgs: { forward: false, wordEnd: true, bigWord: true, inclusive: true }},
    { keys: '{', type: 'motion', motion: 'moveByParagraph', motionArgs: { forward: false, toJumplist: true }},
    { keys: '}', type: 'motion', motion: 'moveByParagraph', motionArgs: { forward: true, toJumplist: true }},
    { keys: '(', type: 'motion', motion: 'moveBySentence', motionArgs: { forward: false }},
    { keys: ')', type: 'motion', motion: 'moveBySentence', motionArgs: { forward: true }},
    { keys: '<C-f>', type: 'motion', motion: 'moveByPage', motionArgs: { forward: true }},
    { keys: '<C-b>', type: 'motion', motion: 'moveByPage', motionArgs: { forward: false }},
    { keys: '<C-d>', type: 'motion', motion: 'moveByScroll', motionArgs: { forward: true, explicitRepeat: true }},
    { keys: '<C-u>', type: 'motion', motion: 'moveByScroll', motionArgs: { forward: false, explicitRepeat: true }},
    { keys: 'gg', type: 'motion', motion: 'moveToLineOrEdgeOfDocument', motionArgs: { forward: false, explicitRepeat: true, linewise: true, toJumplist: true }},
    { keys: 'G', type: 'motion', motion: 'moveToLineOrEdgeOfDocument', motionArgs: { forward: true, explicitRepeat: true, linewise: true, toJumplist: true }},
    { keys: '0', type: 'motion', motion: 'moveToStartOfLine' },
    { keys: '^', type: 'motion', motion: 'moveToFirstNonWhiteSpaceCharacter' },
    { keys: '+', type: 'motion', motion: 'moveByLines', motionArgs: { forward: true, toFirstChar:true }},
    { keys: '-', type: 'motion', motion: 'moveByLines', motionArgs: { forward: false, toFirstChar:true }},
    { keys: '_', type: 'motion', motion: 'moveByLines', motionArgs: { forward: true, toFirstChar:true, repeatOffset:-1 }},
    { keys: '$', type: 'motion', motion: 'moveToEol', motionArgs: { inclusive: true }},
    { keys: '%', type: 'motion', motion: 'moveToMatchedSymbol', motionArgs: { inclusive: true, toJumplist: true }},
    { keys: 'f<character>', type: 'motion', motion: 'moveToCharacter', motionArgs: { forward: true , inclusive: true }},
    { keys: 'F<character>', type: 'motion', motion: 'moveToCharacter', motionArgs: { forward: false }},
    { keys: 't<character>', type: 'motion', motion: 'moveTillCharacter', motionArgs: { forward: true, inclusive: true }},
    { keys: 'T<character>', type: 'motion', motion: 'moveTillCharacter', motionArgs: { forward: false }},
    { keys: ';', type: 'motion', motion: 'repeatLastCharacterSearch', motionArgs: { forward: true }},
    { keys: ',', type: 'motion', motion: 'repeatLastCharacterSearch', motionArgs: { forward: false }},
    { keys: '\'<character>', type: 'motion', motion: 'goToMark', motionArgs: {toJumplist: true, linewise: true}},
    { keys: '`<character>', type: 'motion', motion: 'goToMark', motionArgs: {toJumplist: true}},
    { keys: ']`', type: 'motion', motion: 'jumpToMark', motionArgs: { forward: true } },
    { keys: '[`', type: 'motion', motion: 'jumpToMark', motionArgs: { forward: false } },
    { keys: ']\'', type: 'motion', motion: 'jumpToMark', motionArgs: { forward: true, linewise: true } },
    { keys: '[\'', type: 'motion', motion: 'jumpToMark', motionArgs: { forward: false, linewise: true } },
    // the next two aren't motions but must come before more general motion declarations
    { keys: ']p', type: 'action', action: 'paste', isEdit: true, actionArgs: { after: true, isEdit: true, matchIndent: true}},
    { keys: '[p', type: 'action', action: 'paste', isEdit: true, actionArgs: { after: false, isEdit: true, matchIndent: true}},
    { keys: ']<character>', type: 'motion', motion: 'moveToSymbol', motionArgs: { forward: true, toJumplist: true}},
    { keys: '[<character>', type: 'motion', motion: 'moveToSymbol', motionArgs: { forward: false, toJumplist: true}},
    { keys: '|', type: 'motion', motion: 'moveToColumn'},
    { keys: 'o', type: 'motion', motion: 'moveToOtherHighlightedEnd', context:'visual'},
    { keys: 'O', type: 'motion', motion: 'moveToOtherHighlightedEnd', motionArgs: {sameLine: true}, context:'visual'},
    // Operators
    { keys: 'd', type: 'operator', operator: 'delete' },
    { keys: 'y', type: 'operator', operator: 'yank' },
    { keys: 'c', type: 'operator', operator: 'change' },
    { keys: '=', type: 'operator', operator: 'indentAuto' },
    { keys: '>', type: 'operator', operator: 'indent', operatorArgs: { indentRight: true }},
    { keys: '<', type: 'operator', operator: 'indent', operatorArgs: { indentRight: false }},
    { keys: 'g~', type: 'operator', operator: 'changeCase' },
    { keys: 'gu', type: 'operator', operator: 'changeCase', operatorArgs: {toLower: true}, isEdit: true },
    { keys: 'gU', type: 'operator', operator: 'changeCase', operatorArgs: {toLower: false}, isEdit: true },
    { keys: 'n', type: 'motion', motion: 'findNext', motionArgs: { forward: true, toJumplist: true }},
    { keys: 'N', type: 'motion', motion: 'findNext', motionArgs: { forward: false, toJumplist: true }},
    // Operator-Motion dual commands
    { keys: 'x', type: 'operatorMotion', operator: 'delete', motion: 'moveByCharacters', motionArgs: { forward: true }, operatorMotionArgs: { visualLine: false }},
    { keys: 'X', type: 'operatorMotion', operator: 'delete', motion: 'moveByCharacters', motionArgs: { forward: false }, operatorMotionArgs: { visualLine: true }},
    { keys: 'D', type: 'operatorMotion', operator: 'delete', motion: 'moveToEol', motionArgs: { inclusive: true }, context: 'normal'},
    { keys: 'D', type: 'operator', operator: 'delete', operatorArgs: { linewise: true }, context: 'visual'},
    { keys: 'Y', type: 'operatorMotion', operator: 'yank', motion: 'expandToLine', motionArgs: { linewise: true }, context: 'normal'},
    { keys: 'Y', type: 'operator', operator: 'yank', operatorArgs: { linewise: true }, context: 'visual'},
    { keys: 'C', type: 'operatorMotion', operator: 'change', motion: 'moveToEol', motionArgs: { inclusive: true }, context: 'normal'},
    { keys: 'C', type: 'operator', operator: 'change', operatorArgs: { linewise: true }, context: 'visual'},
    { keys: '~', type: 'operatorMotion', operator: 'changeCase', motion: 'moveByCharacters', motionArgs: { forward: true }, operatorArgs: { shouldMoveCursor: true }, context: 'normal'},
    { keys: '~', type: 'operator', operator: 'changeCase', context: 'visual'},
    { keys: '<C-w>', type: 'operatorMotion', operator: 'delete', motion: 'moveByWords', motionArgs: { forward: false, wordEnd: false }, context: 'insert' },
    //ignore C-w in normal mode
    { keys: '<C-w>', type: 'idle', context: 'normal' },
    // Actions
    { keys: '<C-i>', type: 'action', action: 'jumpListWalk', actionArgs: { forward: true }},
    { keys: '<C-o>', type: 'action', action: 'jumpListWalk', actionArgs: { forward: false }},
    { keys: '<C-e>', type: 'action', action: 'scroll', actionArgs: { forward: true, linewise: true }},
    { keys: '<C-y>', type: 'action', action: 'scroll', actionArgs: { forward: false, linewise: true }},
    { keys: 'a', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'charAfter' }, context: 'normal' },
    { keys: 'A', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'eol' }, context: 'normal' },
    { keys: 'A', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'endOfSelectedArea' }, context: 'visual' },
    { keys: 'i', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'inplace' }, context: 'normal' },
    { keys: 'gi', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'lastEdit' }, context: 'normal' },
    { keys: 'I', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'firstNonBlank'}, context: 'normal' },
    { keys: 'gI', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'bol'}, context: 'normal' },
    { keys: 'I', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'startOfSelectedArea' }, context: 'visual' },
    { keys: 'o', type: 'action', action: 'newLineAndEnterInsertMode', isEdit: true, interlaceInsertRepeat: true, actionArgs: { after: true }, context: 'normal' },
    { keys: 'O', type: 'action', action: 'newLineAndEnterInsertMode', isEdit: true, interlaceInsertRepeat: true, actionArgs: { after: false }, context: 'normal' },
    { keys: 'v', type: 'action', action: 'toggleVisualMode' },
    { keys: 'V', type: 'action', action: 'toggleVisualMode', actionArgs: { linewise: true }},
    { keys: '<C-v>', type: 'action', action: 'toggleVisualMode', actionArgs: { blockwise: true }},
    { keys: '<C-q>', type: 'action', action: 'toggleVisualMode', actionArgs: { blockwise: true }},
    { keys: 'gv', type: 'action', action: 'reselectLastSelection' },
    { keys: 'J', type: 'action', action: 'joinLines', isEdit: true },
    { keys: 'gJ', type: 'action', action: 'joinLines', actionArgs: { keepSpaces: true }, isEdit: true },
    { keys: 'p', type: 'action', action: 'paste', isEdit: true, actionArgs: { after: true, isEdit: true }},
    { keys: 'P', type: 'action', action: 'paste', isEdit: true, actionArgs: { after: false, isEdit: true }},
    { keys: 'r<character>', type: 'action', action: 'replace', isEdit: true },
    { keys: '@<character>', type: 'action', action: 'replayMacro' },
    { keys: 'q<character>', type: 'action', action: 'enterMacroRecordMode' },
    // Handle Replace-mode as a special case of insert mode.
    { keys: 'R', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { replace: true }, context: 'normal'},
    { keys: 'R', type: 'operator', operator: 'change', operatorArgs: { linewise: true, fullLine: true }, context: 'visual', exitVisualBlock: true},
    { keys: 'u', type: 'action', action: 'undo', context: 'normal' },
    { keys: 'u', type: 'operator', operator: 'changeCase', operatorArgs: {toLower: true}, context: 'visual', isEdit: true },
    { keys: 'U', type: 'operator', operator: 'changeCase', operatorArgs: {toLower: false}, context: 'visual', isEdit: true },
    { keys: '<C-r>', type: 'action', action: 'redo' },
    { keys: 'm<character>', type: 'action', action: 'setMark' },
    { keys: '"<character>', type: 'action', action: 'setRegister' },
    { keys: 'zz', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'center' }},
    { keys: 'z.', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'center' }, motion: 'moveToFirstNonWhiteSpaceCharacter' },
    { keys: 'zt', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'top' }},
    { keys: 'z<CR>', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'top' }, motion: 'moveToFirstNonWhiteSpaceCharacter' },
    { keys: 'z-', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'bottom' }},
    { keys: 'zb', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'bottom' }, motion: 'moveToFirstNonWhiteSpaceCharacter' },
    { keys: '.', type: 'action', action: 'repeatLastEdit' },
    { keys: '<C-a>', type: 'action', action: 'incrementNumberToken', isEdit: true, actionArgs: {increase: true, backtrack: false}},
    { keys: '<C-x>', type: 'action', action: 'incrementNumberToken', isEdit: true, actionArgs: {increase: false, backtrack: false}},
    { keys: '<C-t>', type: 'action', action: 'indent', actionArgs: { indentRight: true }, context: 'insert' },
    { keys: '<C-d>', type: 'action', action: 'indent', actionArgs: { indentRight: false }, context: 'insert' },
    // Text object motions
    { keys: 'a<character>', type: 'motion', motion: 'textObjectManipulation' },
    { keys: 'i<character>', type: 'motion', motion: 'textObjectManipulation', motionArgs: { textObjectInner: true }},
    // Search
    { keys: '/', type: 'search', searchArgs: { forward: true, querySrc: 'prompt', toJumplist: true }},
    { keys: '?', type: 'search', searchArgs: { forward: false, querySrc: 'prompt', toJumplist: true }},
    { keys: '*', type: 'search', searchArgs: { forward: true, querySrc: 'wordUnderCursor', wholeWordOnly: true, toJumplist: true }},
    { keys: '#', type: 'search', searchArgs: { forward: false, querySrc: 'wordUnderCursor', wholeWordOnly: true, toJumplist: true }},
    { keys: 'g*', type: 'search', searchArgs: { forward: true, querySrc: 'wordUnderCursor', toJumplist: true }},
    { keys: 'g#', type: 'search', searchArgs: { forward: false, querySrc: 'wordUnderCursor', toJumplist: true }},
    // Ex command
    { keys: ':', type: 'ex' }
  ];
  var defaultKeymapLength = defaultKeymap.length;

  /**
   * Ex commands
   * Care must be taken when adding to the default Ex command map. For any
   * pair of commands that have a shared prefix, at least one of their
   * shortNames must not match the prefix of the other command.
   */
  var defaultExCommandMap = [
    { name: 'colorscheme', shortName: 'colo' },
    { name: 'map' },
    { name: 'imap', shortName: 'im' },
    { name: 'nmap', shortName: 'nm' },
    { name: 'vmap', shortName: 'vm' },
    { name: 'unmap' },
    { name: 'write', shortName: 'w' },
    { name: 'undo', shortName: 'u' },
    { name: 'redo', shortName: 'red' },
    { name: 'set', shortName: 'se' },
    { name: 'setlocal', shortName: 'setl' },
    { name: 'setglobal', shortName: 'setg' },
    { name: 'sort', shortName: 'sor' },
    { name: 'substitute', shortName: 's', possiblyAsync: true },
    { name: 'nohlsearch', shortName: 'noh' },
    { name: 'yank', shortName: 'y' },
    { name: 'delmarks', shortName: 'delm' },
    { name: 'registers', shortName: 'reg', excludeFromCommandHistory: true },
    { name: 'global', shortName: 'g' }
  ];

  var Pos = CodeMirror.Pos;

  var Vim = function() {
    function enterVimMode(cm) {
      cm.setOption('disableInput', true);
      cm.setOption('showCursorWhenSelecting', false);
      CodeMirror.signal(cm, "vim-mode-change", {mode: "normal"});
      cm.on('cursorActivity', onCursorActivity);
      maybeInitVimState(cm);
      CodeMirror.on(cm.getInputField(), 'paste', getOnPasteFn(cm));
    }

    function leaveVimMode(cm) {
      cm.setOption('disableInput', false);
      cm.off('cursorActivity', onCursorActivity);
      CodeMirror.off(cm.getInputField(), 'paste', getOnPasteFn(cm));
      cm.state.vim = null;
    }

    function detachVimMap(cm, next) {
      if (this == CodeMirror.keyMap.vim) {
        CodeMirror.rmClass(cm.getWrapperElement(), "cm-fat-cursor");
        if (cm.getOption("inputStyle") == "contenteditable" && document.body.style.caretColor != null) {
          disableFatCursorMark(cm);
          cm.getInputField().style.caretColor = "";
        }
      }

      if (!next || next.attach != attachVimMap)
        leaveVimMode(cm);
    }
    function attachVimMap(cm, prev) {
      if (this == CodeMirror.keyMap.vim) {
        CodeMirror.addClass(cm.getWrapperElement(), "cm-fat-cursor");
        if (cm.getOption("inputStyle") == "contenteditable" && document.body.style.caretColor != null) {
          enableFatCursorMark(cm);
          cm.getInputField().style.caretColor = "transparent";
        }
      }

      if (!prev || prev.attach != attachVimMap)
        enterVimMode(cm);
    }

    function updateFatCursorMark(cm) {
      if (!cm.state.fatCursorMarks) return;
      clearFatCursorMark(cm);
      var ranges = cm.listSelections(), result = []
      for (var i = 0; i < ranges.length; i++) {
        var range = ranges[i];
        if (range.empty()) {
          var lineLength = cm.getLine(range.anchor.line).length;
          if (range.anchor.ch < lineLength) {
            result.push(cm.markText(range.anchor, Pos(range.anchor.line, range.anchor.ch + 1),
                                    {className: "cm-fat-cursor-mark"}));
          } else {
            result.push(cm.markText(Pos(range.anchor.line, lineLength - 1),
                                    Pos(range.anchor.line, lineLength),
                                    {className: "cm-fat-cursor-mark"}));
          }
        }
      }
      cm.state.fatCursorMarks = result;
    }

    function clearFatCursorMark(cm) {
      var marks = cm.state.fatCursorMarks;
      if (marks) for (var i = 0; i < marks.length; i++) marks[i].clear();
    }

    function enableFatCursorMark(cm) {
      cm.state.fatCursorMarks = [];
      updateFatCursorMark(cm)
      cm.on("cursorActivity", updateFatCursorMark)
    }

    function disableFatCursorMark(cm) {
      clearFatCursorMark(cm);
      cm.off("cursorActivity", updateFatCursorMark);
      // explicitly set fatCursorMarks to null because event listener above
      // can be invoke after removing it, if off is called from operation
      cm.state.fatCursorMarks = null;
    }

    // Deprecated, simply setting the keymap works again.
    CodeMirror.defineOption('vimMode', false, function(cm, val, prev) {
      if (val && cm.getOption("keyMap") != "vim")
        cm.setOption("keyMap", "vim");
      else if (!val && prev != CodeMirror.Init && /^vim/.test(cm.getOption("keyMap")))
        cm.setOption("keyMap", "default");
    });

    function cmKey(key, cm) {
      if (!cm) { return undefined; }
      if (this[key]) { return this[key]; }
      var vimKey = cmKeyToVimKey(key);
      if (!vimKey) {
        return false;
      }
      var cmd = CodeMirror.Vim.findKey(cm, vimKey);
      if (typeof cmd == 'function') {
        CodeMirror.signal(cm, 'vim-keypress', vimKey);
      }
      return cmd;
    }

    var modifiers = {'Shift': 'S', 'Ctrl': 'C', 'Alt': 'A', 'Cmd': 'D', 'Mod': 'A'};
    var specialKeys = {Enter:'CR',Backspace:'BS',Delete:'Del',Insert:'Ins'};
    function cmKeyToVimKey(key) {
      if (key.charAt(0) == '\'') {
        // Keypress character binding of format "'a'"
        return key.charAt(1);
      }
      var pieces = key.split(/-(?!$)/);
      var lastPiece = pieces[pieces.length - 1];
      if (pieces.length == 1 && pieces[0].length == 1) {
        // No-modifier bindings use literal character bindings above. Skip.
        return false;
      } else if (pieces.length == 2 && pieces[0] == 'Shift' && lastPiece.length == 1) {
        // Ignore Shift+char bindings as they should be handled by literal character.
        return false;
      }
      var hasCharacter = false;
      for (var i = 0; i < pieces.length; i++) {
        var piece = pieces[i];
        if (piece in modifiers) { pieces[i] = modifiers[piece]; }
        else { hasCharacter = true; }
        if (piece in specialKeys) { pieces[i] = specialKeys[piece]; }
      }
      if (!hasCharacter) {
        // Vim does not support modifier only keys.
        return false;
      }
      // TODO: Current bindings expect the character to be lower case, but
      // it looks like vim key notation uses upper case.
      if (isUpperCase(lastPiece)) {
        pieces[pieces.length - 1] = lastPiece.toLowerCase();
      }
      return '<' + pieces.join('-') + '>';
    }

    function getOnPasteFn(cm) {
      var vim = cm.state.vim;
      if (!vim.onPasteFn) {
        vim.onPasteFn = function() {
          if (!vim.insertMode) {
            cm.setCursor(offsetCursor(cm.getCursor(), 0, 1));
            actions.enterInsertMode(cm, {}, vim);
          }
        };
      }
      return vim.onPasteFn;
    }

    var numberRegex = /[\d]/;
    var wordCharTest = [CodeMirror.isWordChar, function(ch) {
      return ch && !CodeMirror.isWordChar(ch) && !/\s/.test(ch);
    }], bigWordCharTest = [function(ch) {
      return /\S/.test(ch);
    }];
    function makeKeyRange(start, size) {
      var keys = [];
      for (var i = start; i < start + size; i++) {
        keys.push(String.fromCharCode(i));
      }
      return keys;
    }
    var upperCaseAlphabet = makeKeyRange(65, 26);
    var lowerCaseAlphabet = makeKeyRange(97, 26);
    var numbers = makeKeyRange(48, 10);
    var validMarks = [].concat(upperCaseAlphabet, lowerCaseAlphabet, numbers, ['<', '>']);
    var validRegisters = [].concat(upperCaseAlphabet, lowerCaseAlphabet, numbers, ['-', '"', '.', ':', '/']);

    function isLine(cm, line) {
      return line >= cm.firstLine() && line <= cm.lastLine();
    }
    function isLowerCase(k) {
      return (/^[a-z]$/).test(k);
    }
    function isMatchableSymbol(k) {
      return '()[]{}'.indexOf(k) != -1;
    }
    function isNumber(k) {
      return numberRegex.test(k);
    }
    function isUpperCase(k) {
      return (/^[A-Z]$/).test(k);
    }
    function isWhiteSpaceString(k) {
      return (/^\s*$/).test(k);
    }
    function isEndOfSentenceSymbol(k) {
      return '.?!'.indexOf(k) != -1;
    }
    function inArray(val, arr) {
      for (var i = 0; i < arr.length; i++) {
        if (arr[i] == val) {
          return true;
        }
      }
      return false;
    }

    var options = {};
    function defineOption(name, defaultValue, type, aliases, callback) {
      if (defaultValue === undefined && !callback) {
        throw Error('defaultValue is required unless callback is provided');
      }
      if (!type) { type = 'string'; }
      options[name] = {
        type: type,
        defaultValue: defaultValue,
        callback: callback
      };
      if (aliases) {
        for (var i = 0; i < aliases.length; i++) {
          options[aliases[i]] = options[name];
        }
      }
      if (defaultValue) {
        setOption(name, defaultValue);
      }
    }

    function setOption(name, value, cm, cfg) {
      var option = options[name];
      cfg = cfg || {};
      var scope = cfg.scope;
      if (!option) {
        return new Error('Unknown option: ' + name);
      }
      if (option.type == 'boolean') {
        if (value && value !== true) {
          return new Error('Invalid argument: ' + name + '=' + value);
        } else if (value !== false) {
          // Boolean options are set to true if value is not defined.
          value = true;
        }
      }
      if (option.callback) {
        if (scope !== 'local') {
          option.callback(value, undefined);
        }
        if (scope !== 'global' && cm) {
          option.callback(value, cm);
        }
      } else {
        if (scope !== 'local') {
          option.value = option.type == 'boolean' ? !!value : value;
        }
        if (scope !== 'global' && cm) {
          cm.state.vim.options[name] = {value: value};
        }
      }
    }

    function getOption(name, cm, cfg) {
      var option = options[name];
      cfg = cfg || {};
      var scope = cfg.scope;
      if (!option) {
        return new Error('Unknown option: ' + name);
      }
      if (option.callback) {
        var local = cm && option.callback(undefined, cm);
        if (scope !== 'global' && local !== undefined) {
          return local;
        }
        if (scope !== 'local') {
          return option.callback();
        }
        return;
      } else {
        var local = (scope !== 'global') && (cm && cm.state.vim.options[name]);
        return (local || (scope !== 'local') && option || {}).value;
      }
    }

    defineOption('filetype', undefined, 'string', ['ft'], function(name, cm) {
      // Option is local. Do nothing for global.
      if (cm === undefined) {
        return;
      }
      // The 'filetype' option proxies to the CodeMirror 'mode' option.
      if (name === undefined) {
        var mode = cm.getOption('mode');
        return mode == 'null' ? '' : mode;
      } else {
        var mode = name == '' ? 'null' : name;
        cm.setOption('mode', mode);
      }
    });

    var createCircularJumpList = function() {
      var size = 100;
      var pointer = -1;
      var head = 0;
      var tail = 0;
      var buffer = new Array(size);
      function add(cm, oldCur, newCur) {
        var current = pointer % size;
        var curMark = buffer[current];
        function useNextSlot(cursor) {
          var next = ++pointer % size;
          var trashMark = buffer[next];
          if (trashMark) {
            trashMark.clear();
          }
          buffer[next] = cm.setBookmark(cursor);
        }
        if (curMark) {
          var markPos = curMark.find();
          // avoid recording redundant cursor position
          if (markPos && !cursorEqual(markPos, oldCur)) {
            useNextSlot(oldCur);
          }
        } else {
          useNextSlot(oldCur);
        }
        useNextSlot(newCur);
        head = pointer;
        tail = pointer - size + 1;
        if (tail < 0) {
          tail = 0;
        }
      }
      function move(cm, offset) {
        pointer += offset;
        if (pointer > head) {
          pointer = head;
        } else if (pointer < tail) {
          pointer = tail;
        }
        var mark = buffer[(size + pointer) % size];
        // skip marks that are temporarily removed from text buffer
        if (mark && !mark.find()) {
          var inc = offset > 0 ? 1 : -1;
          var newCur;
          var oldCur = cm.getCursor();
          do {
            pointer += inc;
            mark = buffer[(size + pointer) % size];
            // skip marks that are the same as current position
            if (mark &&
                (newCur = mark.find()) &&
                !cursorEqual(oldCur, newCur)) {
              break;
            }
          } while (pointer < head && pointer > tail);
        }
        return mark;
      }
      function find(cm, offset) {
        var oldPointer = pointer;
        var mark = move(cm, offset);
        pointer = oldPointer;
        return mark && mark.find();
      }
      return {
        cachedCursor: undefined, //used for # and * jumps
        add: add,
        find: find,
        move: move
      };
    };

    // Returns an object to track the changes associated insert mode.  It
    // clones the object that is passed in, or creates an empty object one if
    // none is provided.
    var createInsertModeChanges = function(c) {
      if (c) {
        // Copy construction
        return {
          changes: c.changes,
          expectCursorActivityForChange: c.expectCursorActivityForChange
        };
      }
      return {
        // Change list
        changes: [],
        // Set to true on change, false on cursorActivity.
        expectCursorActivityForChange: false
      };
    };

    function MacroModeState() {
      this.latestRegister = undefined;
      this.isPlaying = false;
      this.isRecording = false;
      this.replaySearchQueries = [];
      this.onRecordingDone = undefined;
      this.lastInsertModeChanges = createInsertModeChanges();
    }
    MacroModeState.prototype = {
      exitMacroRecordMode: function() {
        var macroModeState = vimGlobalState.macroModeState;
        if (macroModeState.onRecordingDone) {
          macroModeState.onRecordingDone(); // close dialog
        }
        macroModeState.onRecordingDone = undefined;
        macroModeState.isRecording = false;
      },
      enterMacroRecordMode: function(cm, registerName) {
        var register =
            vimGlobalState.registerController.getRegister(registerName);
        if (register) {
          register.clear();
          this.latestRegister = registerName;
          if (cm.openDialog) {
            this.onRecordingDone = cm.openDialog(
                '(recording)['+registerName+']', null, {bottom:true});
          }
          this.isRecording = true;
        }
      }
    };

    function maybeInitVimState(cm) {
      if (!cm.state.vim) {
        // Store instance state in the CodeMirror object.
        cm.state.vim = {
          inputState: new InputState(),
          // Vim's input state that triggered the last edit, used to repeat
          // motions and operators with '.'.
          lastEditInputState: undefined,
          // Vim's action command before the last edit, used to repeat actions
          // with '.' and insert mode repeat.
          lastEditActionCommand: undefined,
          // When using jk for navigation, if you move from a longer line to a
          // shorter line, the cursor may clip to the end of the shorter line.
          // If j is pressed again and cursor goes to the next line, the
          // cursor should go back to its horizontal position on the longer
          // line if it can. This is to keep track of the horizontal position.
          lastHPos: -1,
          // Doing the same with screen-position for gj/gk
          lastHSPos: -1,
          // The last motion command run. Cleared if a non-motion command gets
          // executed in between.
          lastMotion: null,
          marks: {},
          // Mark for rendering fake cursor for visual mode.
          fakeCursor: null,
          insertMode: false,
          // Repeat count for changes made in insert mode, triggered by key
          // sequences like 3,i. Only exists when insertMode is true.
          insertModeRepeat: undefined,
          visualMode: false,
          // If we are in visual line mode. No effect if visualMode is false.
          visualLine: false,
          visualBlock: false,
          lastSelection: null,
          lastPastedText: null,
          sel: {},
          // Buffer-local/window-local values of vim options.
          options: {}
        };
      }
      return cm.state.vim;
    }
    var vimGlobalState;
    function resetVimGlobalState() {
      vimGlobalState = {
        // The current search query.
        searchQuery: null,
        // Whether we are searching backwards.
        searchIsReversed: false,
        // Replace part of the last substituted pattern
        lastSubstituteReplacePart: undefined,
        jumpList: createCircularJumpList(),
        macroModeState: new MacroModeState,
        // Recording latest f, t, F or T motion command.
        lastCharacterSearch: {increment:0, forward:true, selectedCharacter:''},
        registerController: new RegisterController({}),
        // search history buffer
        searchHistoryController: new HistoryController(),
        // ex Command history buffer
        exCommandHistoryController : new HistoryController()
      };
      for (var optionName in options) {
        var option = options[optionName];
        option.value = option.defaultValue;
      }
    }

    var lastInsertModeKeyTimer;
    var vimApi= {
      buildKeyMap: function() {
        // TODO: Convert keymap into dictionary format for fast lookup.
      },
      // Testing hook, though it might be useful to expose the register
      // controller anyways.
      getRegisterController: function() {
        return vimGlobalState.registerController;
      },
      // Testing hook.
      resetVimGlobalState_: resetVimGlobalState,

      // Testing hook.
      getVimGlobalState_: function() {
        return vimGlobalState;
      },

      // Testing hook.
      maybeInitVimState_: maybeInitVimState,

      suppressErrorLogging: false,

      InsertModeKey: InsertModeKey,
      map: function(lhs, rhs, ctx) {
        // Add user defined key bindings.
        exCommandDispatcher.map(lhs, rhs, ctx);
      },
      unmap: function(lhs, ctx) {
        exCommandDispatcher.unmap(lhs, ctx);
      },
      // Non-recursive map function.
      // NOTE: This will not create mappings to key maps that aren't present
      // in the default key map. See TODO at bottom of function.
      noremap: function(lhs, rhs, ctx) {
        function toCtxArray(ctx) {
          return ctx ? [ctx] : ['normal', 'insert', 'visual'];
        }
        var ctxsToMap = toCtxArray(ctx);
        // Look through all actual defaults to find a map candidate.
        var actualLength = defaultKeymap.length, origLength = defaultKeymapLength;
        for (var i = actualLength - origLength;
             i < actualLength && ctxsToMap.length;
             i++) {
          var mapping = defaultKeymap[i];
          // Omit mappings that operate in the wrong context(s) and those of invalid type.
          if (mapping.keys == rhs &&
              (!ctx || !mapping.context || mapping.context === ctx) &&
              mapping.type.substr(0, 2) !== 'ex' &&
              mapping.type.substr(0, 3) !== 'key') {
            // Make a shallow copy of the original keymap entry.
            var newMapping = {};
            for (var key in mapping) {
              newMapping[key] = mapping[key];
            }
            // Modify it point to the new mapping with the proper context.
            newMapping.keys = lhs;
            if (ctx && !newMapping.context) {
              newMapping.context = ctx;
            }
            // Add it to the keymap with a higher priority than the original.
            this._mapCommand(newMapping);
            // Record the mapped contexts as complete.
            var mappedCtxs = toCtxArray(mapping.context);
            ctxsToMap = ctxsToMap.filter(function(el) { return mappedCtxs.indexOf(el) === -1; });
          }
        }
        // TODO: Create non-recursive keyToKey mappings for the unmapped contexts once those exist.
      },
      // Remove all user-defined mappings for the provided context.
      mapclear: function(ctx) {
        // Partition the existing keymap into user-defined and true defaults.
        var actualLength = defaultKeymap.length,
            origLength = defaultKeymapLength;
        var userKeymap = defaultKeymap.slice(0, actualLength - origLength);
        defaultKeymap = defaultKeymap.slice(actualLength - origLength);
        if (ctx) {
          // If a specific context is being cleared, we need to keep mappings
          // from all other contexts.
          for (var i = userKeymap.length - 1; i >= 0; i--) {
            var mapping = userKeymap[i];
            if (ctx !== mapping.context) {
              if (mapping.context) {
                this._mapCommand(mapping);
              } else {
                // `mapping` applies to all contexts so create keymap copies
                // for each context except the one being cleared.
                var contexts = ['normal', 'insert', 'visual'];
                for (var j in contexts) {
                  if (contexts[j] !== ctx) {
                    var newMapping = {};
                    for (var key in mapping) {
                      newMapping[key] = mapping[key];
                    }
                    newMapping.context = contexts[j];
                    this._mapCommand(newMapping);
                  }
                }
              }
            }
          }
        }
      },
      // TODO: Expose setOption and getOption as instance methods. Need to decide how to namespace
      // them, or somehow make them work with the existing CodeMirror setOption/getOption API.
      setOption: setOption,
      getOption: getOption,
      defineOption: defineOption,
      defineEx: function(name, prefix, func){
        if (!prefix) {
          prefix = name;
        } else if (name.indexOf(prefix) !== 0) {
          throw new Error('(Vim.defineEx) "'+prefix+'" is not a prefix of "'+name+'", command not registered');
        }
        exCommands[name]=func;
        exCommandDispatcher.commandMap_[prefix]={name:name, shortName:prefix, type:'api'};
      },
      handleKey: function (cm, key, origin) {
        var command = this.findKey(cm, key, origin);
        if (typeof command === 'function') {
          return command();
        }
      },
      /**
       * This is the outermost function called by CodeMirror, after keys have
       * been mapped to their Vim equivalents.
       *
       * Finds a command based on the key (and cached keys if there is a
       * multi-key sequence). Returns `undefined` if no key is matched, a noop
       * function if a partial match is found (multi-key), and a function to
       * execute the bound command if a a key is matched. The function always
       * returns true.
       */
      findKey: function(cm, key, origin) {
        var vim = maybeInitVimState(cm);
        function handleMacroRecording() {
          var macroModeState = vimGlobalState.macroModeState;
          if (macroModeState.isRecording) {
            if (key == 'q') {
              macroModeState.exitMacroRecordMode();
              clearInputState(cm);
              return true;
            }
            if (origin != 'mapping') {
              logKey(macroModeState, key);
            }
          }
        }
        function handleEsc() {
          if (key == '<Esc>') {
            // Clear input state and get back to normal mode.
            clearInputState(cm);
            if (vim.visualMode) {
              exitVisualMode(cm);
            } else if (vim.insertMode) {
              exitInsertMode(cm);
            }
            return true;
          }
        }
        function doKeyToKey(keys) {
          // TODO: prevent infinite recursion.
          var match;
          while (keys) {
            // Pull off one command key, which is either a single character
            // or a special sequence wrapped in '<' and '>', e.g. '<Space>'.
            match = (/<\w+-.+?>|<\w+>|./).exec(keys);
            key = match[0];
            keys = keys.substring(match.index + key.length);
            CodeMirror.Vim.handleKey(cm, key, 'mapping');
          }
        }

        function handleKeyInsertMode() {
          if (handleEsc()) { return true; }
          var keys = vim.inputState.keyBuffer = vim.inputState.keyBuffer + key;
          var keysAreChars = key.length == 1;
          var match = commandDispatcher.matchCommand(keys, defaultKeymap, vim.inputState, 'insert');
          // Need to check all key substrings in insert mode.
          while (keys.length > 1 && match.type != 'full') {
            var keys = vim.inputState.keyBuffer = keys.slice(1);
            var thisMatch = commandDispatcher.matchCommand(keys, defaultKeymap, vim.inputState, 'insert');
            if (thisMatch.type != 'none') { match = thisMatch; }
          }
          if (match.type == 'none') { clearInputState(cm); return false; }
          else if (match.type == 'partial') {
            if (lastInsertModeKeyTimer) { window.clearTimeout(lastInsertModeKeyTimer); }
            lastInsertModeKeyTimer = window.setTimeout(
              function() { if (vim.insertMode && vim.inputState.keyBuffer) { clearInputState(cm); } },
              getOption('insertModeEscKeysTimeout'));
            return !keysAreChars;
          }

          if (lastInsertModeKeyTimer) { window.clearTimeout(lastInsertModeKeyTimer); }
          if (keysAreChars) {
            var selections = cm.listSelections();
            for (var i = 0; i < selections.length; i++) {
              var here = selections[i].head;
              cm.replaceRange('', offsetCursor(here, 0, -(keys.length - 1)), here, '+input');
            }
            vimGlobalState.macroModeState.lastInsertModeChanges.changes.pop();
          }
          clearInputState(cm);
          return match.command;
        }

        function handleKeyNonInsertMode() {
          if (handleMacroRecording() || handleEsc()) { return true; }

          var keys = vim.inputState.keyBuffer = vim.inputState.keyBuffer + key;
          if (/^[1-9]\d*$/.test(keys)) { return true; }

          var keysMatcher = /^(\d*)(.*)$/.exec(keys);
          if (!keysMatcher) { clearInputState(cm); return false; }
          var context = vim.visualMode ? 'visual' :
                                         'normal';
          var match = commandDispatcher.matchCommand(keysMatcher[2] || keysMatcher[1], defaultKeymap, vim.inputState, context);
          if (match.type == 'none') { clearInputState(cm); return false; }
          else if (match.type == 'partial') { return true; }

          vim.inputState.keyBuffer = '';
          var keysMatcher = /^(\d*)(.*)$/.exec(keys);
          if (keysMatcher[1] && keysMatcher[1] != '0') {
            vim.inputState.pushRepeatDigit(keysMatcher[1]);
          }
          return match.command;
        }

        var command;
        if (vim.insertMode) { command = handleKeyInsertMode(); }
        else { command = handleKeyNonInsertMode(); }
        if (command === false) {
          return !vim.insertMode && key.length === 1 ? function() { return true; } : undefined;
        } else if (command === true) {
          // TODO: Look into using CodeMirror's multi-key handling.
          // Return no-op since we are caching the key. Counts as handled, but
          // don't want act on it just yet.
          return function() { return true; };
        } else {
          return function() {
            return cm.operation(function() {
              cm.curOp.isVimOp = true;
              try {
                if (command.type == 'keyToKey') {
                  doKeyToKey(command.toKeys);
                } else {
                  commandDispatcher.processCommand(cm, vim, command);
                }
              } catch (e) {
                // clear VIM state in case it's in a bad state.
                cm.state.vim = undefined;
                maybeInitVimState(cm);
                if (!CodeMirror.Vim.suppressErrorLogging) {
                  console['log'](e);
                }
                throw e;
              }
              return true;
            });
          };
        }
      },
      handleEx: function(cm, input) {
        exCommandDispatcher.processCommand(cm, input);
      },

      defineMotion: defineMotion,
      defineAction: defineAction,
      defineOperator: defineOperator,
      mapCommand: mapCommand,
      _mapCommand: _mapCommand,

      defineRegister: defineRegister,

      exitVisualMode: exitVisualMode,
      exitInsertMode: exitInsertMode
    };

    // Represents the current input state.
    function InputState() {
      this.prefixRepeat = [];
      this.motionRepeat = [];

      this.operator = null;
      this.operatorArgs = null;
      this.motion = null;
      this.motionArgs = null;
      this.keyBuffer = []; // For matching multi-key commands.
      this.registerName = null; // Defaults to the unnamed register.
    }
    InputState.prototype.pushRepeatDigit = function(n) {
      if (!this.operator) {
        this.prefixRepeat = this.prefixRepeat.concat(n);
      } else {
        this.motionRepeat = this.motionRepeat.concat(n);
      }
    };
    InputState.prototype.getRepeat = function() {
      var repeat = 0;
      if (this.prefixRepeat.length > 0 || this.motionRepeat.length > 0) {
        repeat = 1;
        if (this.prefixRepeat.length > 0) {
          repeat *= parseInt(this.prefixRepeat.join(''), 10);
        }
        if (this.motionRepeat.length > 0) {
          repeat *= parseInt(this.motionRepeat.join(''), 10);
        }
      }
      return repeat;
    };

    function clearInputState(cm, reason) {
      cm.state.vim.inputState = new InputState();
      CodeMirror.signal(cm, 'vim-command-done', reason);
    }

    /*
     * Register stores information about copy and paste registers.  Besides
     * text, a register must store whether it is linewise (i.e., when it is
     * pasted, should it insert itself into a new line, or should the text be
     * inserted at the cursor position.)
     */
    function Register(text, linewise, blockwise) {
      this.clear();
      this.keyBuffer = [text || ''];
      this.insertModeChanges = [];
      this.searchQueries = [];
      this.linewise = !!linewise;
      this.blockwise = !!blockwise;
    }
    Register.prototype = {
      setText: function(text, linewise, blockwise) {
        this.keyBuffer = [text || ''];
        this.linewise = !!linewise;
        this.blockwise = !!blockwise;
      },
      pushText: function(text, linewise) {
        // if this register has ever been set to linewise, use linewise.
        if (linewise) {
          if (!this.linewise) {
            this.keyBuffer.push('\n');
          }
          this.linewise = true;
        }
        this.keyBuffer.push(text);
      },
      pushInsertModeChanges: function(changes) {
        this.insertModeChanges.push(createInsertModeChanges(changes));
      },
      pushSearchQuery: function(query) {
        this.searchQueries.push(query);
      },
      clear: function() {
        this.keyBuffer = [];
        this.insertModeChanges = [];
        this.searchQueries = [];
        this.linewise = false;
      },
      toString: function() {
        return this.keyBuffer.join('');
      }
    };

    /**
     * Defines an external register.
     *
     * The name should be a single character that will be used to reference the register.
     * The register should support setText, pushText, clear, and toString(). See Register
     * for a reference implementation.
     */
    function defineRegister(name, register) {
      var registers = vimGlobalState.registerController.registers;
      if (!name || name.length != 1) {
        throw Error('Register name must be 1 character');
      }
      if (registers[name]) {
        throw Error('Register already defined ' + name);
      }
      registers[name] = register;
      validRegisters.push(name);
    }

    /*
     * vim registers allow you to keep many independent copy and paste buffers.
     * See http://usevim.com/2012/04/13/registers/ for an introduction.
     *
     * RegisterController keeps the state of all the registers.  An initial
     * state may be passed in.  The unnamed register '"' will always be
     * overridden.
     */
    function RegisterController(registers) {
      this.registers = registers;
      this.unnamedRegister = registers['"'] = new Register();
      registers['.'] = new Register();
      registers[':'] = new Register();
      registers['/'] = new Register();
    }
    RegisterController.prototype = {
      pushText: function(registerName, operator, text, linewise, blockwise) {
        if (linewise && text.charAt(text.length - 1) !== '\n'){
          text += '\n';
        }
        // Lowercase and uppercase registers refer to the same register.
        // Uppercase just means append.
        var register = this.isValidRegister(registerName) ?
            this.getRegister(registerName) : null;
        // if no register/an invalid register was specified, things go to the
        // default registers
        if (!register) {
          switch (operator) {
            case 'yank':
              // The 0 register contains the text from the most recent yank.
              this.registers['0'] = new Register(text, linewise, blockwise);
              break;
            case 'delete':
            case 'change':
              if (text.indexOf('\n') == -1) {
                // Delete less than 1 line. Update the small delete register.
                this.registers['-'] = new Register(text, linewise);
              } else {
                // Shift down the contents of the numbered registers and put the
                // deleted text into register 1.
                this.shiftNumericRegisters_();
                this.registers['1'] = new Register(text, linewise);
              }
              break;
          }
          // Make sure the unnamed register is set to what just happened
          this.unnamedRegister.setText(text, linewise, blockwise);
          return;
        }

        // If we've gotten to this point, we've actually specified a register
        var append = isUpperCase(registerName);
        if (append) {
          register.pushText(text, linewise);
        } else {
          register.setText(text, linewise, blockwise);
        }
        // The unnamed register always has the same value as the last used
        // register.
        this.unnamedRegister.setText(register.toString(), linewise);
      },
      // Gets the register named @name.  If one of @name doesn't already exist,
      // create it.  If @name is invalid, return the unnamedRegister.
      getRegister: function(name) {
        if (!this.isValidRegister(name)) {
          return this.unnamedRegister;
        }
        name = name.toLowerCase();
        if (!this.registers[name]) {
          this.registers[name] = new Register();
        }
        return this.registers[name];
      },
      isValidRegister: function(name) {
        return name && inArray(name, validRegisters);
      },
      shiftNumericRegisters_: function() {
        for (var i = 9; i >= 2; i--) {
          this.registers[i] = this.getRegister('' + (i - 1));
        }
      }
    };
    function HistoryController() {
        this.historyBuffer = [];
        this.iterator = 0;
        this.initialPrefix = null;
    }
    HistoryController.prototype = {
      // the input argument here acts a user entered prefix for a small time
      // until we start autocompletion in which case it is the autocompleted.
      nextMatch: function (input, up) {
        var historyBuffer = this.historyBuffer;
        var dir = up ? -1 : 1;
        if (this.initialPrefix === null) this.initialPrefix = input;
        for (var i = this.iterator + dir; up ? i >= 0 : i < historyBuffer.length; i+= dir) {
          var element = historyBuffer[i];
          for (var j = 0; j <= element.length; j++) {
            if (this.initialPrefix == element.substring(0, j)) {
              this.iterator = i;
              return element;
            }
          }
        }
        // should return the user input in case we reach the end of buffer.
        if (i >= historyBuffer.length) {
          this.iterator = historyBuffer.length;
          return this.initialPrefix;
        }
        // return the last autocompleted query or exCommand as it is.
        if (i < 0 ) return input;
      },
      pushInput: function(input) {
        var index = this.historyBuffer.indexOf(input);
        if (index > -1) this.historyBuffer.splice(index, 1);
        if (input.length) this.historyBuffer.push(input);
      },
      reset: function() {
        this.initialPrefix = null;
        this.iterator = this.historyBuffer.length;
      }
    };
    var commandDispatcher = {
      matchCommand: function(keys, keyMap, inputState, context) {
        var matches = commandMatches(keys, keyMap, context, inputState);
        if (!matches.full && !matches.partial) {
          return {type: 'none'};
        } else if (!matches.full && matches.partial) {
          return {type: 'partial'};
        }

        var bestMatch;
        for (var i = 0; i < matches.full.length; i++) {
          var match = matches.full[i];
          if (!bestMatch) {
            bestMatch = match;
          }
        }
        if (bestMatch.keys.slice(-11) == '<character>') {
          var character = lastChar(keys);
          if (!character) return {type: 'none'};
          inputState.selectedCharacter = character;
        }
        return {type: 'full', command: bestMatch};
      },
      processCommand: function(cm, vim, command) {
        vim.inputState.repeatOverride = command.repeatOverride;
        switch (command.type) {
          case 'motion':
            this.processMotion(cm, vim, command);
            break;
          case 'operator':
            this.processOperator(cm, vim, command);
            break;
          case 'operatorMotion':
            this.processOperatorMotion(cm, vim, command);
            break;
          case 'action':
            this.processAction(cm, vim, command);
            break;
          case 'search':
            this.processSearch(cm, vim, command);
            break;
          case 'ex':
          case 'keyToEx':
            this.processEx(cm, vim, command);
            break;
          default:
            break;
        }
      },
      processMotion: function(cm, vim, command) {
        vim.inputState.motion = command.motion;
        vim.inputState.motionArgs = copyArgs(command.motionArgs);
        this.evalInput(cm, vim);
      },
      processOperator: function(cm, vim, command) {
        var inputState = vim.inputState;
        if (inputState.operator) {
          if (inputState.operator == command.operator) {
            // Typing an operator twice like 'dd' makes the operator operate
            // linewise
            inputState.motion = 'expandToLine';
            inputState.motionArgs = { linewise: true };
            this.evalInput(cm, vim);
            return;
          } else {
            // 2 different operators in a row doesn't make sense.
            clearInputState(cm);
          }
        }
        inputState.operator = command.operator;
        inputState.operatorArgs = copyArgs(command.operatorArgs);
        if (command.exitVisualBlock) {
            vim.visualBlock = false;
            updateCmSelection(cm);
        }
        if (vim.visualMode) {
          // Operating on a selection in visual mode. We don't need a motion.
          this.evalInput(cm, vim);
        }
      },
      processOperatorMotion: function(cm, vim, command) {
        var visualMode = vim.visualMode;
        var operatorMotionArgs = copyArgs(command.operatorMotionArgs);
        if (operatorMotionArgs) {
          // Operator motions may have special behavior in visual mode.
          if (visualMode && operatorMotionArgs.visualLine) {
            vim.visualLine = true;
          }
        }
        this.processOperator(cm, vim, command);
        if (!visualMode) {
          this.processMotion(cm, vim, command);
        }
      },
      processAction: function(cm, vim, command) {
        var inputState = vim.inputState;
        var repeat = inputState.getRepeat();
        var repeatIsExplicit = !!repeat;
        var actionArgs = copyArgs(command.actionArgs) || {};
        if (inputState.selectedCharacter) {
          actionArgs.selectedCharacter = inputState.selectedCharacter;
        }
        // Actions may or may not have motions and operators. Do these first.
        if (command.operator) {
          this.processOperator(cm, vim, command);
        }
        if (command.motion) {
          this.processMotion(cm, vim, command);
        }
        if (command.motion || command.operator) {
          this.evalInput(cm, vim);
        }
        actionArgs.repeat = repeat || 1;
        actionArgs.repeatIsExplicit = repeatIsExplicit;
        actionArgs.registerName = inputState.registerName;
        clearInputState(cm);
        vim.lastMotion = null;
        if (command.isEdit) {
          this.recordLastEdit(vim, inputState, command);
        }
        actions[command.action](cm, actionArgs, vim);
      },
      processSearch: function(cm, vim, command) {
        if (!cm.getSearchCursor) {
          // Search depends on SearchCursor.
          return;
        }
        var forward = command.searchArgs.forward;
        var wholeWordOnly = command.searchArgs.wholeWordOnly;
        getSearchState(cm).setReversed(!forward);
        var promptPrefix = (forward) ? '/' : '?';
        var originalQuery = getSearchState(cm).getQuery();
        var originalScrollPos = cm.getScrollInfo();
        function handleQuery(query, ignoreCase, smartCase) {
          vimGlobalState.searchHistoryController.pushInput(query);
          vimGlobalState.searchHistoryController.reset();
          try {
            updateSearchQuery(cm, query, ignoreCase, smartCase);
          } catch (e) {
            showConfirm(cm, 'Invalid regex: ' + query);
            clearInputState(cm);
            return;
          }
          commandDispatcher.processMotion(cm, vim, {
            type: 'motion',
            motion: 'findNext',
            motionArgs: { forward: true, toJumplist: command.searchArgs.toJumplist }
          });
        }
        function onPromptClose(query) {
          cm.scrollTo(originalScrollPos.left, originalScrollPos.top);
          handleQuery(query, true /** ignoreCase */, true /** smartCase */);
          var macroModeState = vimGlobalState.macroModeState;
          if (macroModeState.isRecording) {
            logSearchQuery(macroModeState, query);
          }
        }
        function onPromptKeyUp(e, query, close) {
          var keyName = CodeMirror.keyName(e), up, offset;
          if (keyName == 'Up' || keyName == 'Down') {
            up = keyName == 'Up' ? true : false;
            offset = e.target ? e.target.selectionEnd : 0;
            query = vimGlobalState.searchHistoryController.nextMatch(query, up) || '';
            close(query);
            if (offset && e.target) e.target.selectionEnd = e.target.selectionStart = Math.min(offset, e.target.value.length);
          } else {
            if ( keyName != 'Left' && keyName != 'Right' && keyName != 'Ctrl' && keyName != 'Alt' && keyName != 'Shift')
              vimGlobalState.searchHistoryController.reset();
          }
          var parsedQuery;
          try {
            parsedQuery = updateSearchQuery(cm, query,
                true /** ignoreCase */, true /** smartCase */);
          } catch (e) {
            // Swallow bad regexes for incremental search.
          }
          if (parsedQuery) {
            cm.scrollIntoView(findNext(cm, !forward, parsedQuery), 30);
          } else {
            clearSearchHighlight(cm);
            cm.scrollTo(originalScrollPos.left, originalScrollPos.top);
          }
        }
        function onPromptKeyDown(e, query, close) {
          var keyName = CodeMirror.keyName(e);
          if (keyName == 'Esc' || keyName == 'Ctrl-C' || keyName == 'Ctrl-[' ||
              (keyName == 'Backspace' && query == '')) {
            vimGlobalState.searchHistoryController.pushInput(query);
            vimGlobalState.searchHistoryController.reset();
            updateSearchQuery(cm, originalQuery);
            clearSearchHighlight(cm);
            cm.scrollTo(originalScrollPos.left, originalScrollPos.top);
            CodeMirror.e_stop(e);
            clearInputState(cm);
            close();
            cm.focus();
          } else if (keyName == 'Up' || keyName == 'Down') {
            CodeMirror.e_stop(e);
          } else if (keyName == 'Ctrl-U') {
            // Ctrl-U clears input.
            CodeMirror.e_stop(e);
            close('');
          }
        }
        switch (command.searchArgs.querySrc) {
          case 'prompt':
            var macroModeState = vimGlobalState.macroModeState;
            if (macroModeState.isPlaying) {
              var query = macroModeState.replaySearchQueries.shift();
              handleQuery(query, true /** ignoreCase */, false /** smartCase */);
            } else {
              showPrompt(cm, {
                  onClose: onPromptClose,
                  prefix: promptPrefix,
                  desc: searchPromptDesc,
                  onKeyUp: onPromptKeyUp,
                  onKeyDown: onPromptKeyDown
              });
            }
            break;
          case 'wordUnderCursor':
            var word = expandWordUnderCursor(cm, false /** inclusive */,
                true /** forward */, false /** bigWord */,
                true /** noSymbol */);
            var isKeyword = true;
            if (!word) {
              word = expandWordUnderCursor(cm, false /** inclusive */,
                  true /** forward */, false /** bigWord */,
                  false /** noSymbol */);
              isKeyword = false;
            }
            if (!word) {
              return;
            }
            var query = cm.getLine(word.start.line).substring(word.start.ch,
                word.end.ch);
            if (isKeyword && wholeWordOnly) {
                query = '\\b' + query + '\\b';
            } else {
              query = escapeRegex(query);
            }

            // cachedCursor is used to save the old position of the cursor
            // when * or # causes vim to seek for the nearest word and shift
            // the cursor before entering the motion.
            vimGlobalState.jumpList.cachedCursor = cm.getCursor();
            cm.setCursor(word.start);

            handleQuery(query, true /** ignoreCase */, false /** smartCase */);
            break;
        }
      },
      processEx: function(cm, vim, command) {
        function onPromptClose(input) {
          // Give the prompt some time to close so that if processCommand shows
          // an error, the elements don't overlap.
          vimGlobalState.exCommandHistoryController.pushInput(input);
          vimGlobalState.exCommandHistoryController.reset();
          exCommandDispatcher.processCommand(cm, input);
        }
        function onPromptKeyDown(e, input, close) {
          var keyName = CodeMirror.keyName(e), up, offset;
          if (keyName == 'Esc' || keyName == 'Ctrl-C' || keyName == 'Ctrl-[' ||
              (keyName == 'Backspace' && input == '')) {
            vimGlobalState.exCommandHistoryController.pushInput(input);
            vimGlobalState.exCommandHistoryController.reset();
            CodeMirror.e_stop(e);
            clearInputState(cm);
            close();
            cm.focus();
          }
          if (keyName == 'Up' || keyName == 'Down') {
            CodeMirror.e_stop(e);
            up = keyName == 'Up' ? true : false;
            offset = e.target ? e.target.selectionEnd : 0;
            input = vimGlobalState.exCommandHistoryController.nextMatch(input, up) || '';
            close(input);
            if (offset && e.target) e.target.selectionEnd = e.target.selectionStart = Math.min(offset, e.target.value.length);
          } else if (keyName == 'Ctrl-U') {
            // Ctrl-U clears input.
            CodeMirror.e_stop(e);
            close('');
          } else {
            if ( keyName != 'Left' && keyName != 'Right' && keyName != 'Ctrl' && keyName != 'Alt' && keyName != 'Shift')
              vimGlobalState.exCommandHistoryController.reset();
          }
        }
        if (command.type == 'keyToEx') {
          // Handle user defined Ex to Ex mappings
          exCommandDispatcher.processCommand(cm, command.exArgs.input);
        } else {
          if (vim.visualMode) {
            showPrompt(cm, { onClose: onPromptClose, prefix: ':', value: '\'<,\'>',
                onKeyDown: onPromptKeyDown, selectValueOnOpen: false});
          } else {
            showPrompt(cm, { onClose: onPromptClose, prefix: ':',
                onKeyDown: onPromptKeyDown});
          }
        }
      },
      evalInput: function(cm, vim) {
        // If the motion command is set, execute both the operator and motion.
        // Otherwise return.
        var inputState = vim.inputState;
        var motion = inputState.motion;
        var motionArgs = inputState.motionArgs || {};
        var operator = inputState.operator;
        var operatorArgs = inputState.operatorArgs || {};
        var registerName = inputState.registerName;
        var sel = vim.sel;
        // TODO: Make sure cm and vim selections are identical outside visual mode.
        var origHead = copyCursor(vim.visualMode ? clipCursorToContent(cm, sel.head): cm.getCursor('head'));
        var origAnchor = copyCursor(vim.visualMode ? clipCursorToContent(cm, sel.anchor) : cm.getCursor('anchor'));
        var oldHead = copyCursor(origHead);
        var oldAnchor = copyCursor(origAnchor);
        var newHead, newAnchor;
        var repeat;
        if (operator) {
          this.recordLastEdit(vim, inputState);
        }
        if (inputState.repeatOverride !== undefined) {
          // If repeatOverride is specified, that takes precedence over the
          // input state's repeat. Used by Ex mode and can be user defined.
          repeat = inputState.repeatOverride;
        } else {
          repeat = inputState.getRepeat();
        }
        if (repeat > 0 && motionArgs.explicitRepeat) {
          motionArgs.repeatIsExplicit = true;
        } else if (motionArgs.noRepeat ||
            (!motionArgs.explicitRepeat && repeat === 0)) {
          repeat = 1;
          motionArgs.repeatIsExplicit = false;
        }
        if (inputState.selectedCharacter) {
          // If there is a character input, stick it in all of the arg arrays.
          motionArgs.selectedCharacter = operatorArgs.selectedCharacter =
              inputState.selectedCharacter;
        }
        motionArgs.repeat = repeat;
        clearInputState(cm);
        if (motion) {
          var motionResult = motions[motion](cm, origHead, motionArgs, vim);
          vim.lastMotion = motions[motion];
          if (!motionResult) {
            return;
          }
          if (motionArgs.toJumplist) {
            var jumpList = vimGlobalState.jumpList;
            // if the current motion is # or *, use cachedCursor
            var cachedCursor = jumpList.cachedCursor;
            if (cachedCursor) {
              recordJumpPosition(cm, cachedCursor, motionResult);
              delete jumpList.cachedCursor;
            } else {
              recordJumpPosition(cm, origHead, motionResult);
            }
          }
          if (motionResult instanceof Array) {
            newAnchor = motionResult[0];
            newHead = motionResult[1];
          } else {
            newHead = motionResult;
          }
          // TODO: Handle null returns from motion commands better.
          if (!newHead) {
            newHead = copyCursor(origHead);
          }
          if (vim.visualMode) {
            if (!(vim.visualBlock && newHead.ch === Infinity)) {
              newHead = clipCursorToContent(cm, newHead);
            }
            if (newAnchor) {
              newAnchor = clipCursorToContent(cm, newAnchor);
            }
            newAnchor = newAnchor || oldAnchor;
            sel.anchor = newAnchor;
            sel.head = newHead;
            updateCmSelection(cm);
            updateMark(cm, vim, '<',
                cursorIsBefore(newAnchor, newHead) ? newAnchor
                    : newHead);
            updateMark(cm, vim, '>',
                cursorIsBefore(newAnchor, newHead) ? newHead
                    : newAnchor);
          } else if (!operator) {
            newHead = clipCursorToContent(cm, newHead);
            cm.setCursor(newHead.line, newHead.ch);
          }
        }
        if (operator) {
          if (operatorArgs.lastSel) {
            // Replaying a visual mode operation
            newAnchor = oldAnchor;
            var lastSel = operatorArgs.lastSel;
            var lineOffset = Math.abs(lastSel.head.line - lastSel.anchor.line);
            var chOffset = Math.abs(lastSel.head.ch - lastSel.anchor.ch);
            if (lastSel.visualLine) {
              // Linewise Visual mode: The same number of lines.
              newHead = Pos(oldAnchor.line + lineOffset, oldAnchor.ch);
            } else if (lastSel.visualBlock) {
              // Blockwise Visual mode: The same number of lines and columns.
              newHead = Pos(oldAnchor.line + lineOffset, oldAnchor.ch + chOffset);
            } else if (lastSel.head.line == lastSel.anchor.line) {
              // Normal Visual mode within one line: The same number of characters.
              newHead = Pos(oldAnchor.line, oldAnchor.ch + chOffset);
            } else {
              // Normal Visual mode with several lines: The same number of lines, in the
              // last line the same number of characters as in the last line the last time.
              newHead = Pos(oldAnchor.line + lineOffset, oldAnchor.ch);
            }
            vim.visualMode = true;
            vim.visualLine = lastSel.visualLine;
            vim.visualBlock = lastSel.visualBlock;
            sel = vim.sel = {
              anchor: newAnchor,
              head: newHead
            };
            updateCmSelection(cm);
          } else if (vim.visualMode) {
            operatorArgs.lastSel = {
              anchor: copyCursor(sel.anchor),
              head: copyCursor(sel.head),
              visualBlock: vim.visualBlock,
              visualLine: vim.visualLine
            };
          }
          var curStart, curEnd, linewise, mode;
          var cmSel;
          if (vim.visualMode) {
            // Init visual op
            curStart = cursorMin(sel.head, sel.anchor);
            curEnd = cursorMax(sel.head, sel.anchor);
            linewise = vim.visualLine || operatorArgs.linewise;
            mode = vim.visualBlock ? 'block' :
                   linewise ? 'line' :
                   'char';
            cmSel = makeCmSelection(cm, {
              anchor: curStart,
              head: curEnd
            }, mode);
            if (linewise) {
              var ranges = cmSel.ranges;
              if (mode == 'block') {
                // Linewise operators in visual block mode extend to end of line
                for (var i = 0; i < ranges.length; i++) {
                  ranges[i].head.ch = lineLength(cm, ranges[i].head.line);
                }
              } else if (mode == 'line') {
                ranges[0].head = Pos(ranges[0].head.line + 1, 0);
              }
            }
          } else {
            // Init motion op
            curStart = copyCursor(newAnchor || oldAnchor);
            curEnd = copyCursor(newHead || oldHead);
            if (cursorIsBefore(curEnd, curStart)) {
              var tmp = curStart;
              curStart = curEnd;
              curEnd = tmp;
            }
            linewise = motionArgs.linewise || operatorArgs.linewise;
            if (linewise) {
              // Expand selection to entire line.
              expandSelectionToLine(cm, curStart, curEnd);
            } else if (motionArgs.forward) {
              // Clip to trailing newlines only if the motion goes forward.
              clipToLine(cm, curStart, curEnd);
            }
            mode = 'char';
            var exclusive = !motionArgs.inclusive || linewise;
            cmSel = makeCmSelection(cm, {
              anchor: curStart,
              head: curEnd
            }, mode, exclusive);
          }
          cm.setSelections(cmSel.ranges, cmSel.primary);
          vim.lastMotion = null;
          operatorArgs.repeat = repeat; // For indent in visual mode.
          operatorArgs.registerName = registerName;
          // Keep track of linewise as it affects how paste and change behave.
          operatorArgs.linewise = linewise;
          var operatorMoveTo = operators[operator](
            cm, operatorArgs, cmSel.ranges, oldAnchor, newHead);
          if (vim.visualMode) {
            exitVisualMode(cm, operatorMoveTo != null);
          }
          if (operatorMoveTo) {
            cm.setCursor(operatorMoveTo);
          }
        }
      },
      recordLastEdit: function(vim, inputState, actionCommand) {
        var macroModeState = vimGlobalState.macroModeState;
        if (macroModeState.isPlaying) { return; }
        vim.lastEditInputState = inputState;
        vim.lastEditActionCommand = actionCommand;
        macroModeState.lastInsertModeChanges.changes = [];
        macroModeState.lastInsertModeChanges.expectCursorActivityForChange = false;
        macroModeState.lastInsertModeChanges.visualBlock = vim.visualBlock ? vim.sel.head.line - vim.sel.anchor.line : 0;
      }
    };

    /**
     * typedef {Object{line:number,ch:number}} Cursor An object containing the
     *     position of the cursor.
     */
    // All of the functions below return Cursor objects.
    var motions = {
      moveToTopLine: function(cm, _head, motionArgs) {
        var line = getUserVisibleLines(cm).top + motionArgs.repeat -1;
        return Pos(line, findFirstNonWhiteSpaceCharacter(cm.getLine(line)));
      },
      moveToMiddleLine: function(cm) {
        var range = getUserVisibleLines(cm);
        var line = Math.floor((range.top + range.bottom) * 0.5);
        return Pos(line, findFirstNonWhiteSpaceCharacter(cm.getLine(line)));
      },
      moveToBottomLine: function(cm, _head, motionArgs) {
        var line = getUserVisibleLines(cm).bottom - motionArgs.repeat +1;
        return Pos(line, findFirstNonWhiteSpaceCharacter(cm.getLine(line)));
      },
      expandToLine: function(_cm, head, motionArgs) {
        // Expands forward to end of line, and then to next line if repeat is
        // >1. Does not handle backward motion!
        var cur = head;
        return Pos(cur.line + motionArgs.repeat - 1, Infinity);
      },
      findNext: function(cm, _head, motionArgs) {
        var state = getSearchState(cm);
        var query = state.getQuery();
        if (!query) {
          return;
        }
        var prev = !motionArgs.forward;
        // If search is initiated with ? instead of /, negate direction.
        prev = (state.isReversed()) ? !prev : prev;
        highlightSearchMatches(cm, query);
        return findNext(cm, prev/** prev */, query, motionArgs.repeat);
      },
      goToMark: function(cm, _head, motionArgs, vim) {
        var pos = getMarkPos(cm, vim, motionArgs.selectedCharacter);
        if (pos) {
          return motionArgs.linewise ? { line: pos.line, ch: findFirstNonWhiteSpaceCharacter(cm.getLine(pos.line)) } : pos;
        }
        return null;
      },
      moveToOtherHighlightedEnd: function(cm, _head, motionArgs, vim) {
        if (vim.visualBlock && motionArgs.sameLine) {
          var sel = vim.sel;
          return [
            clipCursorToContent(cm, Pos(sel.anchor.line, sel.head.ch)),
            clipCursorToContent(cm, Pos(sel.head.line, sel.anchor.ch))
          ];
        } else {
          return ([vim.sel.head, vim.sel.anchor]);
        }
      },
      jumpToMark: function(cm, head, motionArgs, vim) {
        var best = head;
        for (var i = 0; i < motionArgs.repeat; i++) {
          var cursor = best;
          for (var key in vim.marks) {
            if (!isLowerCase(key)) {
              continue;
            }
            var mark = vim.marks[key].find();
            var isWrongDirection = (motionArgs.forward) ?
              cursorIsBefore(mark, cursor) : cursorIsBefore(cursor, mark);

            if (isWrongDirection) {
              continue;
            }
            if (motionArgs.linewise && (mark.line == cursor.line)) {
              continue;
            }

            var equal = cursorEqual(cursor, best);
            var between = (motionArgs.forward) ?
              cursorIsBetween(cursor, mark, best) :
              cursorIsBetween(best, mark, cursor);

            if (equal || between) {
              best = mark;
            }
          }
        }

        if (motionArgs.linewise) {
          // Vim places the cursor on the first non-whitespace character of
          // the line if there is one, else it places the cursor at the end
          // of the line, regardless of whether a mark was found.
          best = Pos(best.line, findFirstNonWhiteSpaceCharacter(cm.getLine(best.line)));
        }
        return best;
      },
      moveByCharacters: function(_cm, head, motionArgs) {
        var cur = head;
        var repeat = motionArgs.repeat;
        var ch = motionArgs.forward ? cur.ch + repeat : cur.ch - repeat;
        return Pos(cur.line, ch);
      },
      moveByLines: function(cm, head, motionArgs, vim) {
        var cur = head;
        var endCh = cur.ch;
        // Depending what our last motion was, we may want to do different
        // things. If our last motion was moving vertically, we want to
        // preserve the HPos from our last horizontal move.  If our last motion
        // was going to the end of a line, moving vertically we should go to
        // the end of the line, etc.
        switch (vim.lastMotion) {
          case this.moveByLines:
          case this.moveByDisplayLines:
          case this.moveByScroll:
          case this.moveToColumn:
          case this.moveToEol:
            endCh = vim.lastHPos;
            break;
          default:
            vim.lastHPos = endCh;
        }
        var repeat = motionArgs.repeat+(motionArgs.repeatOffset||0);
        var line = motionArgs.forward ? cur.line + repeat : cur.line - repeat;
        var first = cm.firstLine();
        var last = cm.lastLine();
        var posV = cm.findPosV(cur, (motionArgs.forward ? repeat : -repeat), 'line', vim.lastHSPos);
        var hasMarkedText = motionArgs.forward ? posV.line > line : posV.line < line;
        if (hasMarkedText) {
          line = posV.line;
          endCh = posV.ch;
        }
        // Vim go to line begin or line end when cursor at first/last line and
        // move to previous/next line is triggered.
        if (line < first && cur.line == first){
          return this.moveToStartOfLine(cm, head, motionArgs, vim);
        }else if (line > last && cur.line == last){
            return this.moveToEol(cm, head, motionArgs, vim, true);
        }
        if (motionArgs.toFirstChar){
          endCh=findFirstNonWhiteSpaceCharacter(cm.getLine(line));
          vim.lastHPos = endCh;
        }
        vim.lastHSPos = cm.charCoords(Pos(line, endCh),'div').left;
        return Pos(line, endCh);
      },
      moveByDisplayLines: function(cm, head, motionArgs, vim) {
        var cur = head;
        switch (vim.lastMotion) {
          case this.moveByDisplayLines:
          case this.moveByScroll:
          case this.moveByLines:
          case this.moveToColumn:
          case this.moveToEol:
            break;
          default:
            vim.lastHSPos = cm.charCoords(cur,'div').left;
        }
        var repeat = motionArgs.repeat;
        var res=cm.findPosV(cur,(motionArgs.forward ? repeat : -repeat),'line',vim.lastHSPos);
        if (res.hitSide) {
          if (motionArgs.forward) {
            var lastCharCoords = cm.charCoords(res, 'div');
            var goalCoords = { top: lastCharCoords.top + 8, left: vim.lastHSPos };
            var res = cm.coordsChar(goalCoords, 'div');
          } else {
            var resCoords = cm.charCoords(Pos(cm.firstLine(), 0), 'div');
            resCoords.left = vim.lastHSPos;
            res = cm.coordsChar(resCoords, 'div');
          }
        }
        vim.lastHPos = res.ch;
        return res;
      },
      moveByPage: function(cm, head, motionArgs) {
        // CodeMirror only exposes functions that move the cursor page down, so
        // doing this bad hack to move the cursor and move it back. evalInput
        // will move the cursor to where it should be in the end.
        var curStart = head;
        var repeat = motionArgs.repeat;
        return cm.findPosV(curStart, (motionArgs.forward ? repeat : -repeat), 'page');
      },
      moveByParagraph: function(cm, head, motionArgs) {
        var dir = motionArgs.forward ? 1 : -1;
        return findParagraph(cm, head, motionArgs.repeat, dir);
      },
      moveBySentence: function(cm, head, motionArgs) {
        var dir = motionArgs.forward ? 1 : -1;
        return findSentence(cm, head, motionArgs.repeat, dir);
      },
      moveByScroll: function(cm, head, motionArgs, vim) {
        var scrollbox = cm.getScrollInfo();
        var curEnd = null;
        var repeat = motionArgs.repeat;
        if (!repeat) {
          repeat = scrollbox.clientHeight / (2 * cm.defaultTextHeight());
        }
        var orig = cm.charCoords(head, 'local');
        motionArgs.repeat = repeat;
        var curEnd = motions.moveByDisplayLines(cm, head, motionArgs, vim);
        if (!curEnd) {
          return null;
        }
        var dest = cm.charCoords(curEnd, 'local');
        cm.scrollTo(null, scrollbox.top + dest.top - orig.top);
        return curEnd;
      },
      moveByWords: function(cm, head, motionArgs) {
        return moveToWord(cm, head, motionArgs.repeat, !!motionArgs.forward,
            !!motionArgs.wordEnd, !!motionArgs.bigWord);
      },
      moveTillCharacter: function(cm, _head, motionArgs) {
        var repeat = motionArgs.repeat;
        var curEnd = moveToCharacter(cm, repeat, motionArgs.forward,
            motionArgs.selectedCharacter);
        var increment = motionArgs.forward ? -1 : 1;
        recordLastCharacterSearch(increment, motionArgs);
        if (!curEnd) return null;
        curEnd.ch += increment;
        return curEnd;
      },
      moveToCharacter: function(cm, head, motionArgs) {
        var repeat = motionArgs.repeat;
        recordLastCharacterSearch(0, motionArgs);
        return moveToCharacter(cm, repeat, motionArgs.forward,
            motionArgs.selectedCharacter) || head;
      },
      moveToSymbol: function(cm, head, motionArgs) {
        var repeat = motionArgs.repeat;
        return findSymbol(cm, repeat, motionArgs.forward,
            motionArgs.selectedCharacter) || head;
      },
      moveToColumn: function(cm, head, motionArgs, vim) {
        var repeat = motionArgs.repeat;
        // repeat is equivalent to which column we want to move to!
        vim.lastHPos = repeat - 1;
        vim.lastHSPos = cm.charCoords(head,'div').left;
        return moveToColumn(cm, repeat);
      },
      moveToEol: function(cm, head, motionArgs, vim, keepHPos) {
        var cur = head;
        var retval= Pos(cur.line + motionArgs.repeat - 1, Infinity);
        var end=cm.clipPos(retval);
        end.ch--;
        if (!keepHPos) {
          vim.lastHPos = Infinity;
          vim.lastHSPos = cm.charCoords(end,'div').left;
        }
        return retval;
      },
      moveToFirstNonWhiteSpaceCharacter: function(cm, head) {
        // Go to the start of the line where the text begins, or the end for
        // whitespace-only lines
        var cursor = head;
        return Pos(cursor.line,
                   findFirstNonWhiteSpaceCharacter(cm.getLine(cursor.line)));
      },
      moveToMatchedSymbol: function(cm, head) {
        var cursor = head;
        var line = cursor.line;
        var ch = cursor.ch;
        var lineText = cm.getLine(line);
        var symbol;
        for (; ch < lineText.length; ch++) {
          symbol = lineText.charAt(ch);
          if (symbol && isMatchableSymbol(symbol)) {
            var style = cm.getTokenTypeAt(Pos(line, ch + 1));
            if (style !== "string" && style !== "comment") {
              break;
            }
          }
        }
        if (ch < lineText.length) {
          // Only include angle brackets in analysis if they are being matched.
          var re = (ch === '<' || ch === '>') ? /[(){}[\]<>]/ : /[(){}[\]]/;
          var matched = cm.findMatchingBracket(Pos(line, ch), {bracketRegex: re});
          return matched.to;
        } else {
          return cursor;
        }
      },
      moveToStartOfLine: function(_cm, head) {
        return Pos(head.line, 0);
      },
      moveToLineOrEdgeOfDocument: function(cm, _head, motionArgs) {
        var lineNum = motionArgs.forward ? cm.lastLine() : cm.firstLine();
        if (motionArgs.repeatIsExplicit) {
          lineNum = motionArgs.repeat - cm.getOption('firstLineNumber');
        }
        return Pos(lineNum,
                   findFirstNonWhiteSpaceCharacter(cm.getLine(lineNum)));
      },
      textObjectManipulation: function(cm, head, motionArgs, vim) {
        // TODO: lots of possible exceptions that can be thrown here. Try da(
        //     outside of a () block.
        var mirroredPairs = {'(': ')', ')': '(',
                             '{': '}', '}': '{',
                             '[': ']', ']': '[',
                             '<': '>', '>': '<'};
        var selfPaired = {'\'': true, '"': true, '`': true};

        var character = motionArgs.selectedCharacter;
        // 'b' refers to  '()' block.
        // 'B' refers to  '{}' block.
        if (character == 'b') {
          character = '(';
        } else if (character == 'B') {
          character = '{';
        }

        // Inclusive is the difference between a and i
        // TODO: Instead of using the additional text object map to perform text
        //     object operations, merge the map into the defaultKeyMap and use
        //     motionArgs to define behavior. Define separate entries for 'aw',
        //     'iw', 'a[', 'i[', etc.
        var inclusive = !motionArgs.textObjectInner;

        var tmp;
        if (mirroredPairs[character]) {
          tmp = selectCompanionObject(cm, head, character, inclusive);
        } else if (selfPaired[character]) {
          tmp = findBeginningAndEnd(cm, head, character, inclusive);
        } else if (character === 'W') {
          tmp = expandWordUnderCursor(cm, inclusive, true /** forward */,
                                                     true /** bigWord */);
        } else if (character === 'w') {
          tmp = expandWordUnderCursor(cm, inclusive, true /** forward */,
                                                     false /** bigWord */);
        } else if (character === 'p') {
          tmp = findParagraph(cm, head, motionArgs.repeat, 0, inclusive);
          motionArgs.linewise = true;
          if (vim.visualMode) {
            if (!vim.visualLine) { vim.visualLine = true; }
          } else {
            var operatorArgs = vim.inputState.operatorArgs;
            if (operatorArgs) { operatorArgs.linewise = true; }
            tmp.end.line--;
          }
        } else {
          // No text object defined for this, don't move.
          return null;
        }

        if (!cm.state.vim.visualMode) {
          return [tmp.start, tmp.end];
        } else {
          return expandSelection(cm, tmp.start, tmp.end);
        }
      },

      repeatLastCharacterSearch: function(cm, head, motionArgs) {
        var lastSearch = vimGlobalState.lastCharacterSearch;
        var repeat = motionArgs.repeat;
        var forward = motionArgs.forward === lastSearch.forward;
        var increment = (lastSearch.increment ? 1 : 0) * (forward ? -1 : 1);
        cm.moveH(-increment, 'char');
        motionArgs.inclusive = forward ? true : false;
        var curEnd = moveToCharacter(cm, repeat, forward, lastSearch.selectedCharacter);
        if (!curEnd) {
          cm.moveH(increment, 'char');
          return head;
        }
        curEnd.ch += increment;
        return curEnd;
      }
    };

    function defineMotion(name, fn) {
      motions[name] = fn;
    }

    function fillArray(val, times) {
      var arr = [];
      for (var i = 0; i < times; i++) {
        arr.push(val);
      }
      return arr;
    }
    /**
     * An operator acts on a text selection. It receives the list of selections
     * as input. The corresponding CodeMirror selection is guaranteed to
    * match the input selection.
     */
    var operators = {
      change: function(cm, args, ranges) {
        var finalHead, text;
        var vim = cm.state.vim;
        var anchor = ranges[0].anchor,
            head = ranges[0].head;
        if (!vim.visualMode) {
          text = cm.getRange(anchor, head);
          var lastState = vim.lastEditInputState || {};
          if (lastState.motion == "moveByWords" && !isWhiteSpaceString(text)) {
            // Exclude trailing whitespace if the range is not all whitespace.
            var match = (/\s+$/).exec(text);
            if (match && lastState.motionArgs && lastState.motionArgs.forward) {
              head = offsetCursor(head, 0, - match[0].length);
              text = text.slice(0, - match[0].length);
            }
          }
          var prevLineEnd = new Pos(anchor.line - 1, Number.MAX_VALUE);
          var wasLastLine = cm.firstLine() == cm.lastLine();
          if (head.line > cm.lastLine() && args.linewise && !wasLastLine) {
            cm.replaceRange('', prevLineEnd, head);
          } else {
            cm.replaceRange('', anchor, head);
          }
          if (args.linewise) {
            // Push the next line back down, if there is a next line.
            if (!wasLastLine) {
              cm.setCursor(prevLineEnd);
              CodeMirror.commands.newlineAndIndent(cm);
            }
            // make sure cursor ends up at the end of the line.
            anchor.ch = Number.MAX_VALUE;
          }
          finalHead = anchor;
        } else if (args.fullLine) {
            head.ch = Number.MAX_VALUE;
            head.line--;
            cm.setSelection(anchor, head)
            text = cm.getSelection();
            cm.replaceSelection("");
            finalHead = anchor;
        } else {
          text = cm.getSelection();
          var replacement = fillArray('', ranges.length);
          cm.replaceSelections(replacement);
          finalHead = cursorMin(ranges[0].head, ranges[0].anchor);
        }
        vimGlobalState.registerController.pushText(
            args.registerName, 'change', text,
            args.linewise, ranges.length > 1);
        actions.enterInsertMode(cm, {head: finalHead}, cm.state.vim);
      },
      // delete is a javascript keyword.
      'delete': function(cm, args, ranges) {
        var finalHead, text;
        var vim = cm.state.vim;
        if (!vim.visualBlock) {
          var anchor = ranges[0].anchor,
              head = ranges[0].head;
          if (args.linewise &&
              head.line != cm.firstLine() &&
              anchor.line == cm.lastLine() &&
              anchor.line == head.line - 1) {
            // Special case for dd on last line (and first line).
            if (anchor.line == cm.firstLine()) {
              anchor.ch = 0;
            } else {
              anchor = Pos(anchor.line - 1, lineLength(cm, anchor.line - 1));
            }
          }
          text = cm.getRange(anchor, head);
          cm.replaceRange('', anchor, head);
          finalHead = anchor;
          if (args.linewise) {
            finalHead = motions.moveToFirstNonWhiteSpaceCharacter(cm, anchor);
          }
        } else {
          text = cm.getSelection();
          var replacement = fillArray('', ranges.length);
          cm.replaceSelections(replacement);
          finalHead = ranges[0].anchor;
        }
        vimGlobalState.registerController.pushText(
            args.registerName, 'delete', text,
            args.linewise, vim.visualBlock);
        return clipCursorToContent(cm, finalHead);
      },
      indent: function(cm, args, ranges) {
        var vim = cm.state.vim;
        var startLine = ranges[0].anchor.line;
        var endLine = vim.visualBlock ?
          ranges[ranges.length - 1].anchor.line :
          ranges[0].head.line;
        // In visual mode, n> shifts the selection right n times, instead of
        // shifting n lines right once.
        var repeat = (vim.visualMode) ? args.repeat : 1;
        if (args.linewise) {
          // The only way to delete a newline is to delete until the start of
          // the next line, so in linewise mode evalInput will include the next
          // line. We don't want this in indent, so we go back a line.
          endLine--;
        }
        for (var i = startLine; i <= endLine; i++) {
          for (var j = 0; j < repeat; j++) {
            cm.indentLine(i, args.indentRight);
          }
        }
        return motions.moveToFirstNonWhiteSpaceCharacter(cm, ranges[0].anchor);
      },
      indentAuto: function(cm, _args, ranges) {
        cm.execCommand("indentAuto");
        return motions.moveToFirstNonWhiteSpaceCharacter(cm, ranges[0].anchor);
      },
      changeCase: function(cm, args, ranges, oldAnchor, newHead) {
        var selections = cm.getSelections();
        var swapped = [];
        var toLower = args.toLower;
        for (var j = 0; j < selections.length; j++) {
          var toSwap = selections[j];
          var text = '';
          if (toLower === true) {
            text = toSwap.toLowerCase();
          } else if (toLower === false) {
            text = toSwap.toUpperCase();
          } else {
            for (var i = 0; i < toSwap.length; i++) {
              var character = toSwap.charAt(i);
              text += isUpperCase(character) ? character.toLowerCase() :
                  character.toUpperCase();
            }
          }
          swapped.push(text);
        }
        cm.replaceSelections(swapped);
        if (args.shouldMoveCursor){
          return newHead;
        } else if (!cm.state.vim.visualMode && args.linewise && ranges[0].anchor.line + 1 == ranges[0].head.line) {
          return motions.moveToFirstNonWhiteSpaceCharacter(cm, oldAnchor);
        } else if (args.linewise){
          return oldAnchor;
        } else {
          return cursorMin(ranges[0].anchor, ranges[0].head);
        }
      },
      yank: function(cm, args, ranges, oldAnchor) {
        var vim = cm.state.vim;
        var text = cm.getSelection();
        var endPos = vim.visualMode
          ? cursorMin(vim.sel.anchor, vim.sel.head, ranges[0].head, ranges[0].anchor)
          : oldAnchor;
        vimGlobalState.registerController.pushText(
            args.registerName, 'yank',
            text, args.linewise, vim.visualBlock);
        return endPos;
      }
    };

    function defineOperator(name, fn) {
      operators[name] = fn;
    }

    var actions = {
      jumpListWalk: function(cm, actionArgs, vim) {
        if (vim.visualMode) {
          return;
        }
        var repeat = actionArgs.repeat;
        var forward = actionArgs.forward;
        var jumpList = vimGlobalState.jumpList;

        var mark = jumpList.move(cm, forward ? repeat : -repeat);
        var markPos = mark ? mark.find() : undefined;
        markPos = markPos ? markPos : cm.getCursor();
        cm.setCursor(markPos);
      },
      scroll: function(cm, actionArgs, vim) {
        if (vim.visualMode) {
          return;
        }
        var repeat = actionArgs.repeat || 1;
        var lineHeight = cm.defaultTextHeight();
        var top = cm.getScrollInfo().top;
        var delta = lineHeight * repeat;
        var newPos = actionArgs.forward ? top + delta : top - delta;
        var cursor = copyCursor(cm.getCursor());
        var cursorCoords = cm.charCoords(cursor, 'local');
        if (actionArgs.forward) {
          if (newPos > cursorCoords.top) {
             cursor.line += (newPos - cursorCoords.top) / lineHeight;
             cursor.line = Math.ceil(cursor.line);
             cm.setCursor(cursor);
             cursorCoords = cm.charCoords(cursor, 'local');
             cm.scrollTo(null, cursorCoords.top);
          } else {
             // Cursor stays within bounds.  Just reposition the scroll window.
             cm.scrollTo(null, newPos);
          }
        } else {
          var newBottom = newPos + cm.getScrollInfo().clientHeight;
          if (newBottom < cursorCoords.bottom) {
             cursor.line -= (cursorCoords.bottom - newBottom) / lineHeight;
             cursor.line = Math.floor(cursor.line);
             cm.setCursor(cursor);
             cursorCoords = cm.charCoords(cursor, 'local');
             cm.scrollTo(
                 null, cursorCoords.bottom - cm.getScrollInfo().clientHeight);
          } else {
             // Cursor stays within bounds.  Just reposition the scroll window.
             cm.scrollTo(null, newPos);
          }
        }
      },
      scrollToCursor: function(cm, actionArgs) {
        var lineNum = cm.getCursor().line;
        var charCoords = cm.charCoords(Pos(lineNum, 0), 'local');
        var height = cm.getScrollInfo().clientHeight;
        var y = charCoords.top;
        var lineHeight = charCoords.bottom - y;
        switch (actionArgs.position) {
          case 'center': y = y - (height / 2) + lineHeight;
            break;
          case 'bottom': y = y - height + lineHeight;
            break;
        }
        cm.scrollTo(null, y);
      },
      replayMacro: function(cm, actionArgs, vim) {
        var registerName = actionArgs.selectedCharacter;
        var repeat = actionArgs.repeat;
        var macroModeState = vimGlobalState.macroModeState;
        if (registerName == '@') {
          registerName = macroModeState.latestRegister;
        } else {
          macroModeState.latestRegister = registerName;
        }
        while(repeat--){
          executeMacroRegister(cm, vim, macroModeState, registerName);
        }
      },
      enterMacroRecordMode: function(cm, actionArgs) {
        var macroModeState = vimGlobalState.macroModeState;
        var registerName = actionArgs.selectedCharacter;
        if (vimGlobalState.registerController.isValidRegister(registerName)) {
          macroModeState.enterMacroRecordMode(cm, registerName);
        }
      },
      toggleOverwrite: function(cm) {
        if (!cm.state.overwrite) {
          cm.toggleOverwrite(true);
          cm.setOption('keyMap', 'vim-replace');
          CodeMirror.signal(cm, "vim-mode-change", {mode: "replace"});
        } else {
          cm.toggleOverwrite(false);
          cm.setOption('keyMap', 'vim-insert');
          CodeMirror.signal(cm, "vim-mode-change", {mode: "insert"});
        }
      },
      enterInsertMode: function(cm, actionArgs, vim) {
        if (cm.getOption('readOnly')) { return; }
        vim.insertMode = true;
        vim.insertModeRepeat = actionArgs && actionArgs.repeat || 1;
        var insertAt = (actionArgs) ? actionArgs.insertAt : null;
        var sel = vim.sel;
        var head = actionArgs.head || cm.getCursor('head');
        var height = cm.listSelections().length;
        if (insertAt == 'eol') {
          head = Pos(head.line, lineLength(cm, head.line));
        } else if (insertAt == 'bol') {
          head = Pos(head.line, 0);
        } else if (insertAt == 'charAfter') {
          head = offsetCursor(head, 0, 1);
        } else if (insertAt == 'firstNonBlank') {
          head = motions.moveToFirstNonWhiteSpaceCharacter(cm, head);
        } else if (insertAt == 'startOfSelectedArea') {
          if (!vim.visualMode)
              return;
          if (!vim.visualBlock) {
            if (sel.head.line < sel.anchor.line) {
              head = sel.head;
            } else {
              head = Pos(sel.anchor.line, 0);
            }
          } else {
            head = Pos(
                Math.min(sel.head.line, sel.anchor.line),
                Math.min(sel.head.ch, sel.anchor.ch));
            height = Math.abs(sel.head.line - sel.anchor.line) + 1;
          }
        } else if (insertAt == 'endOfSelectedArea') {
            if (!vim.visualMode)
              return;
          if (!vim.visualBlock) {
            if (sel.head.line >= sel.anchor.line) {
              head = offsetCursor(sel.head, 0, 1);
            } else {
              head = Pos(sel.anchor.line, 0);
            }
          } else {
            head = Pos(
                Math.min(sel.head.line, sel.anchor.line),
                Math.max(sel.head.ch + 1, sel.anchor.ch));
            height = Math.abs(sel.head.line - sel.anchor.line) + 1;
          }
        } else if (insertAt == 'inplace') {
          if (vim.visualMode){
            return;
          }
        } else if (insertAt == 'lastEdit') {
          head = getLastEditPos(cm) || head;
        }
        cm.setOption('disableInput', false);
        if (actionArgs && actionArgs.replace) {
          // Handle Replace-mode as a special case of insert mode.
          cm.toggleOverwrite(true);
          cm.setOption('keyMap', 'vim-replace');
          CodeMirror.signal(cm, "vim-mode-change", {mode: "replace"});
        } else {
          cm.toggleOverwrite(false);
          cm.setOption('keyMap', 'vim-insert');
          CodeMirror.signal(cm, "vim-mode-change", {mode: "insert"});
        }
        if (!vimGlobalState.macroModeState.isPlaying) {
          // Only record if not replaying.
          cm.on('change', onChange);
          CodeMirror.on(cm.getInputField(), 'keydown', onKeyEventTargetKeyDown);
        }
        if (vim.visualMode) {
          exitVisualMode(cm);
        }
        selectForInsert(cm, head, height);
      },
      toggleVisualMode: function(cm, actionArgs, vim) {
        var repeat = actionArgs.repeat;
        var anchor = cm.getCursor();
        var head;
        // TODO: The repeat should actually select number of characters/lines
        //     equal to the repeat times the size of the previous visual
        //     operation.
        if (!vim.visualMode) {
          // Entering visual mode
          vim.visualMode = true;
          vim.visualLine = !!actionArgs.linewise;
          vim.visualBlock = !!actionArgs.blockwise;
          head = clipCursorToContent(
              cm, Pos(anchor.line, anchor.ch + repeat - 1));
          vim.sel = {
            anchor: anchor,
            head: head
          };
          CodeMirror.signal(cm, "vim-mode-change", {mode: "visual", subMode: vim.visualLine ? "linewise" : vim.visualBlock ? "blockwise" : ""});
          updateCmSelection(cm);
          updateMark(cm, vim, '<', cursorMin(anchor, head));
          updateMark(cm, vim, '>', cursorMax(anchor, head));
        } else if (vim.visualLine ^ actionArgs.linewise ||
            vim.visualBlock ^ actionArgs.blockwise) {
          // Toggling between modes
          vim.visualLine = !!actionArgs.linewise;
          vim.visualBlock = !!actionArgs.blockwise;
          CodeMirror.signal(cm, "vim-mode-change", {mode: "visual", subMode: vim.visualLine ? "linewise" : vim.visualBlock ? "blockwise" : ""});
          updateCmSelection(cm);
        } else {
          exitVisualMode(cm);
        }
      },
      reselectLastSelection: function(cm, _actionArgs, vim) {
        var lastSelection = vim.lastSelection;
        if (vim.visualMode) {
          updateLastSelection(cm, vim);
        }
        if (lastSelection) {
          var anchor = lastSelection.anchorMark.find();
          var head = lastSelection.headMark.find();
          if (!anchor || !head) {
            // If the marks have been destroyed due to edits, do nothing.
            return;
          }
          vim.sel = {
            anchor: anchor,
            head: head
          };
          vim.visualMode = true;
          vim.visualLine = lastSelection.visualLine;
          vim.visualBlock = lastSelection.visualBlock;
          updateCmSelection(cm);
          updateMark(cm, vim, '<', cursorMin(anchor, head));
          updateMark(cm, vim, '>', cursorMax(anchor, head));
          CodeMirror.signal(cm, 'vim-mode-change', {
            mode: 'visual',
            subMode: vim.visualLine ? 'linewise' :
                     vim.visualBlock ? 'blockwise' : ''});
        }
      },
      joinLines: function(cm, actionArgs, vim) {
        var curStart, curEnd;
        if (vim.visualMode) {
          curStart = cm.getCursor('anchor');
          curEnd = cm.getCursor('head');
          if (cursorIsBefore(curEnd, curStart)) {
            var tmp = curEnd;
            curEnd = curStart;
            curStart = tmp;
          }
          curEnd.ch = lineLength(cm, curEnd.line) - 1;
        } else {
          // Repeat is the number of lines to join. Minimum 2 lines.
          var repeat = Math.max(actionArgs.repeat, 2);
          curStart = cm.getCursor();
          curEnd = clipCursorToContent(cm, Pos(curStart.line + repeat - 1,
                                               Infinity));
        }
        var finalCh = 0;
        for (var i = curStart.line; i < curEnd.line; i++) {
          finalCh = lineLength(cm, curStart.line);
          var tmp = Pos(curStart.line + 1,
                        lineLength(cm, curStart.line + 1));
          var text = cm.getRange(curStart, tmp);
          text = actionArgs.keepSpaces
            ? text.replace(/\n\r?/g, '')
            : text.replace(/\n\s*/g, ' ');
          cm.replaceRange(text, curStart, tmp);
        }
        var curFinalPos = Pos(curStart.line, finalCh);
        if (vim.visualMode) {
          exitVisualMode(cm, false);
        }
        cm.setCursor(curFinalPos);
      },
      newLineAndEnterInsertMode: function(cm, actionArgs, vim) {
        vim.insertMode = true;
        var insertAt = copyCursor(cm.getCursor());
        if (insertAt.line === cm.firstLine() && !actionArgs.after) {
          // Special case for inserting newline before start of document.
          cm.replaceRange('\n', Pos(cm.firstLine(), 0));
          cm.setCursor(cm.firstLine(), 0);
        } else {
          insertAt.line = (actionArgs.after) ? insertAt.line :
              insertAt.line - 1;
          insertAt.ch = lineLength(cm, insertAt.line);
          cm.setCursor(insertAt);
          var newlineFn = CodeMirror.commands.newlineAndIndentContinueComment ||
              CodeMirror.commands.newlineAndIndent;
          newlineFn(cm);
        }
        this.enterInsertMode(cm, { repeat: actionArgs.repeat }, vim);
      },
      paste: function(cm, actionArgs, vim) {
        var cur = copyCursor(cm.getCursor());
        var register = vimGlobalState.registerController.getRegister(
            actionArgs.registerName);
        var text = register.toString();
        if (!text) {
          return;
        }
        if (actionArgs.matchIndent) {
          var tabSize = cm.getOption("tabSize");
          // length that considers tabs and tabSize
          var whitespaceLength = function(str) {
            var tabs = (str.split("\t").length - 1);
            var spaces = (str.split(" ").length - 1);
            return tabs * tabSize + spaces * 1;
          };
          var currentLine = cm.getLine(cm.getCursor().line);
          var indent = whitespaceLength(currentLine.match(/^\s*/)[0]);
          // chomp last newline b/c don't want it to match /^\s*/gm
          var chompedText = text.replace(/\n$/, '');
          var wasChomped = text !== chompedText;
          var firstIndent = whitespaceLength(text.match(/^\s*/)[0]);
          var text = chompedText.replace(/^\s*/gm, function(wspace) {
            var newIndent = indent + (whitespaceLength(wspace) - firstIndent);
            if (newIndent < 0) {
              return "";
            }
            else if (cm.getOption("indentWithTabs")) {
              var quotient = Math.floor(newIndent / tabSize);
              return Array(quotient + 1).join('\t');
            }
            else {
              return Array(newIndent + 1).join(' ');
            }
          });
          text += wasChomped ? "\n" : "";
        }
        if (actionArgs.repeat > 1) {
          var text = Array(actionArgs.repeat + 1).join(text);
        }
        var linewise = register.linewise;
        var blockwise = register.blockwise;
        if (blockwise) {
          text = text.split('\n');
          if (linewise) {
              text.pop();
          }
          for (var i = 0; i < text.length; i++) {
            text[i] = (text[i] == '') ? ' ' : text[i];
          }
          cur.ch += actionArgs.after ? 1 : 0;
          cur.ch = Math.min(lineLength(cm, cur.line), cur.ch);
        } else if (linewise) {
          if(vim.visualMode) {
            text = vim.visualLine ? text.slice(0, -1) : '\n' + text.slice(0, text.length - 1) + '\n';
          } else if (actionArgs.after) {
            // Move the newline at the end to the start instead, and paste just
            // before the newline character of the line we are on right now.
            text = '\n' + text.slice(0, text.length - 1);
            cur.ch = lineLength(cm, cur.line);
          } else {
            cur.ch = 0;
          }
        } else {
          cur.ch += actionArgs.after ? 1 : 0;
        }
        var curPosFinal;
        var idx;
        if (vim.visualMode) {
          //  save the pasted text for reselection if the need arises
          vim.lastPastedText = text;
          var lastSelectionCurEnd;
          var selectedArea = getSelectedAreaRange(cm, vim);
          var selectionStart = selectedArea[0];
          var selectionEnd = selectedArea[1];
          var selectedText = cm.getSelection();
          var selections = cm.listSelections();
          var emptyStrings = new Array(selections.length).join('1').split('1');
          // save the curEnd marker before it get cleared due to cm.replaceRange.
          if (vim.lastSelection) {
            lastSelectionCurEnd = vim.lastSelection.headMark.find();
          }
          // push the previously selected text to unnamed register
          vimGlobalState.registerController.unnamedRegister.setText(selectedText);
          if (blockwise) {
            // first delete the selected text
            cm.replaceSelections(emptyStrings);
            // Set new selections as per the block length of the yanked text
            selectionEnd = Pos(selectionStart.line + text.length-1, selectionStart.ch);
            cm.setCursor(selectionStart);
            selectBlock(cm, selectionEnd);
            cm.replaceSelections(text);
            curPosFinal = selectionStart;
          } else if (vim.visualBlock) {
            cm.replaceSelections(emptyStrings);
            cm.setCursor(selectionStart);
            cm.replaceRange(text, selectionStart, selectionStart);
            curPosFinal = selectionStart;
          } else {
            cm.replaceRange(text, selectionStart, selectionEnd);
            curPosFinal = cm.posFromIndex(cm.indexFromPos(selectionStart) + text.length - 1);
          }
          // restore the the curEnd marker
          if(lastSelectionCurEnd) {
            vim.lastSelection.headMark = cm.setBookmark(lastSelectionCurEnd);
          }
          if (linewise) {
            curPosFinal.ch=0;
          }
        } else {
          if (blockwise) {
            cm.setCursor(cur);
            for (var i = 0; i < text.length; i++) {
              var line = cur.line+i;
              if (line > cm.lastLine()) {
                cm.replaceRange('\n',  Pos(line, 0));
              }
              var lastCh = lineLength(cm, line);
              if (lastCh < cur.ch) {
                extendLineToColumn(cm, line, cur.ch);
              }
            }
            cm.setCursor(cur);
            selectBlock(cm, Pos(cur.line + text.length-1, cur.ch));
            cm.replaceSelections(text);
            curPosFinal = cur;
          } else {
            cm.replaceRange(text, cur);
            // Now fine tune the cursor to where we want it.
            if (linewise && actionArgs.after) {
              curPosFinal = Pos(
              cur.line + 1,
              findFirstNonWhiteSpaceCharacter(cm.getLine(cur.line + 1)));
            } else if (linewise && !actionArgs.after) {
              curPosFinal = Pos(
                cur.line,
                findFirstNonWhiteSpaceCharacter(cm.getLine(cur.line)));
            } else if (!linewise && actionArgs.after) {
              idx = cm.indexFromPos(cur);
              curPosFinal = cm.posFromIndex(idx + text.length - 1);
            } else {
              idx = cm.indexFromPos(cur);
              curPosFinal = cm.posFromIndex(idx + text.length);
            }
          }
        }
        if (vim.visualMode) {
          exitVisualMode(cm, false);
        }
        cm.setCursor(curPosFinal);
      },
      undo: function(cm, actionArgs) {
        cm.operation(function() {
          repeatFn(cm, CodeMirror.commands.undo, actionArgs.repeat)();
          cm.setCursor(cm.getCursor('anchor'));
        });
      },
      redo: function(cm, actionArgs) {
        repeatFn(cm, CodeMirror.commands.redo, actionArgs.repeat)();
      },
      setRegister: function(_cm, actionArgs, vim) {
        vim.inputState.registerName = actionArgs.selectedCharacter;
      },
      setMark: function(cm, actionArgs, vim) {
        var markName = actionArgs.selectedCharacter;
        updateMark(cm, vim, markName, cm.getCursor());
      },
      replace: function(cm, actionArgs, vim) {
        var replaceWith = actionArgs.selectedCharacter;
        var curStart = cm.getCursor();
        var replaceTo;
        var curEnd;
        var selections = cm.listSelections();
        if (vim.visualMode) {
          curStart = cm.getCursor('start');
          curEnd = cm.getCursor('end');
        } else {
          var line = cm.getLine(curStart.line);
          replaceTo = curStart.ch + actionArgs.repeat;
          if (replaceTo > line.length) {
            replaceTo=line.length;
          }
          curEnd = Pos(curStart.line, replaceTo);
        }
        if (replaceWith=='\n') {
          if (!vim.visualMode) cm.replaceRange('', curStart, curEnd);
          // special case, where vim help says to replace by just one line-break
          (CodeMirror.commands.newlineAndIndentContinueComment || CodeMirror.commands.newlineAndIndent)(cm);
        } else {
          var replaceWithStr = cm.getRange(curStart, curEnd);
          //replace all characters in range by selected, but keep linebreaks
          replaceWithStr = replaceWithStr.replace(/[^\n]/g, replaceWith);
          if (vim.visualBlock) {
            // Tabs are split in visua block before replacing
            var spaces = new Array(cm.getOption("tabSize")+1).join(' ');
            replaceWithStr = cm.getSelection();
            replaceWithStr = replaceWithStr.replace(/\t/g, spaces).replace(/[^\n]/g, replaceWith).split('\n');
            cm.replaceSelections(replaceWithStr);
          } else {
            cm.replaceRange(replaceWithStr, curStart, curEnd);
          }
          if (vim.visualMode) {
            curStart = cursorIsBefore(selections[0].anchor, selections[0].head) ?
                         selections[0].anchor : selections[0].head;
            cm.setCursor(curStart);
            exitVisualMode(cm, false);
          } else {
            cm.setCursor(offsetCursor(curEnd, 0, -1));
          }
        }
      },
      incrementNumberToken: function(cm, actionArgs) {
        var cur = cm.getCursor();
        var lineStr = cm.getLine(cur.line);
        var re = /(-?)(?:(0x)([\da-f]+)|(0b|0|)(\d+))/gi;
        var match;
        var start;
        var end;
        var numberStr;
        while ((match = re.exec(lineStr)) !== null) {
          start = match.index;
          end = start + match[0].length;
          if (cur.ch < end)break;
        }
        if (!actionArgs.backtrack && (end <= cur.ch))return;
        if (match) {
          var baseStr = match[2] || match[4]
          var digits = match[3] || match[5]
          var increment = actionArgs.increase ? 1 : -1;
          var base = {'0b': 2, '0': 8, '': 10, '0x': 16}[baseStr.toLowerCase()];
          var number = parseInt(match[1] + digits, base) + (increment * actionArgs.repeat);
          numberStr = number.toString(base);
          var zeroPadding = baseStr ? new Array(digits.length - numberStr.length + 1 + match[1].length).join('0') : ''
          if (numberStr.charAt(0) === '-') {
            numberStr = '-' + baseStr + zeroPadding + numberStr.substr(1);
          } else {
            numberStr = baseStr + zeroPadding + numberStr;
          }
          var from = Pos(cur.line, start);
          var to = Pos(cur.line, end);
          cm.replaceRange(numberStr, from, to);
        } else {
          return;
        }
        cm.setCursor(Pos(cur.line, start + numberStr.length - 1));
      },
      repeatLastEdit: function(cm, actionArgs, vim) {
        var lastEditInputState = vim.lastEditInputState;
        if (!lastEditInputState) { return; }
        var repeat = actionArgs.repeat;
        if (repeat && actionArgs.repeatIsExplicit) {
          vim.lastEditInputState.repeatOverride = repeat;
        } else {
          repeat = vim.lastEditInputState.repeatOverride || repeat;
        }
        repeatLastEdit(cm, vim, repeat, false /** repeatForInsert */);
      },
      indent: function(cm, actionArgs) {
        cm.indentLine(cm.getCursor().line, actionArgs.indentRight);
      },
      exitInsertMode: exitInsertMode
    };

    function defineAction(name, fn) {
      actions[name] = fn;
    }

    /*
     * Below are miscellaneous utility functions used by vim.js
     */

    /**
     * Clips cursor to ensure that line is within the buffer's range
     * If includeLineBreak is true, then allow cur.ch == lineLength.
     */
    function clipCursorToContent(cm, cur) {
      var vim = cm.state.vim;
      var includeLineBreak = vim.insertMode || vim.visualMode;
      var line = Math.min(Math.max(cm.firstLine(), cur.line), cm.lastLine() );
      var maxCh = lineLength(cm, line) - 1 + !!includeLineBreak;
      var ch = Math.min(Math.max(0, cur.ch), maxCh);
      return Pos(line, ch);
    }
    function copyArgs(args) {
      var ret = {};
      for (var prop in args) {
        if (args.hasOwnProperty(prop)) {
          ret[prop] = args[prop];
        }
      }
      return ret;
    }
    function offsetCursor(cur, offsetLine, offsetCh) {
      if (typeof offsetLine === 'object') {
        offsetCh = offsetLine.ch;
        offsetLine = offsetLine.line;
      }
      return Pos(cur.line + offsetLine, cur.ch + offsetCh);
    }
    function commandMatches(keys, keyMap, context, inputState) {
      // Partial matches are not applied. They inform the key handler
      // that the current key sequence is a subsequence of a valid key
      // sequence, so that the key buffer is not cleared.
      var match, partial = [], full = [];
      for (var i = 0; i < keyMap.length; i++) {
        var command = keyMap[i];
        if (context == 'insert' && command.context != 'insert' ||
            command.context && command.context != context ||
            inputState.operator && command.type == 'action' ||
            !(match = commandMatch(keys, command.keys))) { continue; }
        if (match == 'partial') { partial.push(command); }
        if (match == 'full') { full.push(command); }
      }
      return {
        partial: partial.length && partial,
        full: full.length && full
      };
    }
    function commandMatch(pressed, mapped) {
      if (mapped.slice(-11) == '<character>') {
        // Last character matches anything.
        var prefixLen = mapped.length - 11;
        var pressedPrefix = pressed.slice(0, prefixLen);
        var mappedPrefix = mapped.slice(0, prefixLen);
        return pressedPrefix == mappedPrefix && pressed.length > prefixLen ? 'full' :
               mappedPrefix.indexOf(pressedPrefix) == 0 ? 'partial' : false;
      } else {
        return pressed == mapped ? 'full' :
               mapped.indexOf(pressed) == 0 ? 'partial' : false;
      }
    }
    function lastChar(keys) {
      var match = /^.*(<[^>]+>)$/.exec(keys);
      var selectedCharacter = match ? match[1] : keys.slice(-1);
      if (selectedCharacter.length > 1){
        switch(selectedCharacter){
          case '<CR>':
            selectedCharacter='\n';
            break;
          case '<Space>':
            selectedCharacter=' ';
            break;
          default:
            selectedCharacter='';
            break;
        }
      }
      return selectedCharacter;
    }
    function repeatFn(cm, fn, repeat) {
      return function() {
        for (var i = 0; i < repeat; i++) {
          fn(cm);
        }
      };
    }
    function copyCursor(cur) {
      return Pos(cur.line, cur.ch);
    }
    function cursorEqual(cur1, cur2) {
      return cur1.ch == cur2.ch && cur1.line == cur2.line;
    }
    function cursorIsBefore(cur1, cur2) {
      if (cur1.line < cur2.line) {
        return true;
      }
      if (cur1.line == cur2.line && cur1.ch < cur2.ch) {
        return true;
      }
      return false;
    }
    function cursorMin(cur1, cur2) {
      if (arguments.length > 2) {
        cur2 = cursorMin.apply(undefined, Array.prototype.slice.call(arguments, 1));
      }
      return cursorIsBefore(cur1, cur2) ? cur1 : cur2;
    }
    function cursorMax(cur1, cur2) {
      if (arguments.length > 2) {
        cur2 = cursorMax.apply(undefined, Array.prototype.slice.call(arguments, 1));
      }
      return cursorIsBefore(cur1, cur2) ? cur2 : cur1;
    }
    function cursorIsBetween(cur1, cur2, cur3) {
      // returns true if cur2 is between cur1 and cur3.
      var cur1before2 = cursorIsBefore(cur1, cur2);
      var cur2before3 = cursorIsBefore(cur2, cur3);
      return cur1before2 && cur2before3;
    }
    function lineLength(cm, lineNum) {
      return cm.getLine(lineNum).length;
    }
    function trim(s) {
      if (s.trim) {
        return s.trim();
      }
      return s.replace(/^\s+|\s+$/g, '');
    }
    function escapeRegex(s) {
      return s.replace(/([.?*+$\[\]\/\\(){}|\-])/g, '\\$1');
    }
    function extendLineToColumn(cm, lineNum, column) {
      var endCh = lineLength(cm, lineNum);
      var spaces = new Array(column-endCh+1).join(' ');
      cm.setCursor(Pos(lineNum, endCh));
      cm.replaceRange(spaces, cm.getCursor());
    }
    // This functions selects a rectangular block
    // of text with selectionEnd as any of its corner
    // Height of block:
    // Difference in selectionEnd.line and first/last selection.line
    // Width of the block:
    // Distance between selectionEnd.ch and any(first considered here) selection.ch
    function selectBlock(cm, selectionEnd) {
      var selections = [], ranges = cm.listSelections();
      var head = copyCursor(cm.clipPos(selectionEnd));
      var isClipped = !cursorEqual(selectionEnd, head);
      var curHead = cm.getCursor('head');
      var primIndex = getIndex(ranges, curHead);
      var wasClipped = cursorEqual(ranges[primIndex].head, ranges[primIndex].anchor);
      var max = ranges.length - 1;
      var index = max - primIndex > primIndex ? max : 0;
      var base = ranges[index].anchor;

      var firstLine = Math.min(base.line, head.line);
      var lastLine = Math.max(base.line, head.line);
      var baseCh = base.ch, headCh = head.ch;

      var dir = ranges[index].head.ch - baseCh;
      var newDir = headCh - baseCh;
      if (dir > 0 && newDir <= 0) {
        baseCh++;
        if (!isClipped) { headCh--; }
      } else if (dir < 0 && newDir >= 0) {
        baseCh--;
        if (!wasClipped) { headCh++; }
      } else if (dir < 0 && newDir == -1) {
        baseCh--;
        headCh++;
      }
      for (var line = firstLine; line <= lastLine; line++) {
        var range = {anchor: new Pos(line, baseCh), head: new Pos(line, headCh)};
        selections.push(range);
      }
      cm.setSelections(selections);
      selectionEnd.ch = headCh;
      base.ch = baseCh;
      return base;
    }
    function selectForInsert(cm, head, height) {
      var sel = [];
      for (var i = 0; i < height; i++) {
        var lineHead = offsetCursor(head, i, 0);
        sel.push({anchor: lineHead, head: lineHead});
      }
      cm.setSelections(sel, 0);
    }
    // getIndex returns the index of the cursor in the selections.
    function getIndex(ranges, cursor, end) {
      for (var i = 0; i < ranges.length; i++) {
        var atAnchor = end != 'head' && cursorEqual(ranges[i].anchor, cursor);
        var atHead = end != 'anchor' && cursorEqual(ranges[i].head, cursor);
        if (atAnchor || atHead) {
          return i;
        }
      }
      return -1;
    }
    function getSelectedAreaRange(cm, vim) {
      var lastSelection = vim.lastSelection;
      var getCurrentSelectedAreaRange = function() {
        var selections = cm.listSelections();
        var start =  selections[0];
        var end = selections[selections.length-1];
        var selectionStart = cursorIsBefore(start.anchor, start.head) ? start.anchor : start.head;
        var selectionEnd = cursorIsBefore(end.anchor, end.head) ? end.head : end.anchor;
        return [selectionStart, selectionEnd];
      };
      var getLastSelectedAreaRange = function() {
        var selectionStart = cm.getCursor();
        var selectionEnd = cm.getCursor();
        var block = lastSelection.visualBlock;
        if (block) {
          var width = block.width;
          var height = block.height;
          selectionEnd = Pos(selectionStart.line + height, selectionStart.ch + width);
          var selections = [];
          // selectBlock creates a 'proper' rectangular block.
          // We do not want that in all cases, so we manually set selections.
          for (var i = selectionStart.line; i < selectionEnd.line; i++) {
            var anchor = Pos(i, selectionStart.ch);
            var head = Pos(i, selectionEnd.ch);
            var range = {anchor: anchor, head: head};
            selections.push(range);
          }
          cm.setSelections(selections);
        } else {
          var start = lastSelection.anchorMark.find();
          var end = lastSelection.headMark.find();
          var line = end.line - start.line;
          var ch = end.ch - start.ch;
          selectionEnd = {line: selectionEnd.line + line, ch: line ? selectionEnd.ch : ch + selectionEnd.ch};
          if (lastSelection.visualLine) {
            selectionStart = Pos(selectionStart.line, 0);
            selectionEnd = Pos(selectionEnd.line, lineLength(cm, selectionEnd.line));
          }
          cm.setSelection(selectionStart, selectionEnd);
        }
        return [selectionStart, selectionEnd];
      };
      if (!vim.visualMode) {
      // In case of replaying the action.
        return getLastSelectedAreaRange();
      } else {
        return getCurrentSelectedAreaRange();
      }
    }
    // Updates the previous selection with the current selection's values. This
    // should only be called in visual mode.
    function updateLastSelection(cm, vim) {
      var anchor = vim.sel.anchor;
      var head = vim.sel.head;
      // To accommodate the effect of lastPastedText in the last selection
      if (vim.lastPastedText) {
        head = cm.posFromIndex(cm.indexFromPos(anchor) + vim.lastPastedText.length);
        vim.lastPastedText = null;
      }
      vim.lastSelection = {'anchorMark': cm.setBookmark(anchor),
                           'headMark': cm.setBookmark(head),
                           'anchor': copyCursor(anchor),
                           'head': copyCursor(head),
                           'visualMode': vim.visualMode,
                           'visualLine': vim.visualLine,
                           'visualBlock': vim.visualBlock};
    }
    function expandSelection(cm, start, end) {
      var sel = cm.state.vim.sel;
      var head = sel.head;
      var anchor = sel.anchor;
      var tmp;
      if (cursorIsBefore(end, start)) {
        tmp = end;
        end = start;
        start = tmp;
      }
      if (cursorIsBefore(head, anchor)) {
        head = cursorMin(start, head);
        anchor = cursorMax(anchor, end);
      } else {
        anchor = cursorMin(start, anchor);
        head = cursorMax(head, end);
        head = offsetCursor(head, 0, -1);
        if (head.ch == -1 && head.line != cm.firstLine()) {
          head = Pos(head.line - 1, lineLength(cm, head.line - 1));
        }
      }
      return [anchor, head];
    }
    /**
     * Updates the CodeMirror selection to match the provided vim selection.
     * If no arguments are given, it uses the current vim selection state.
     */
    function updateCmSelection(cm, sel, mode) {
      var vim = cm.state.vim;
      sel = sel || vim.sel;
      var mode = mode ||
        vim.visualLine ? 'line' : vim.visualBlock ? 'block' : 'char';
      var cmSel = makeCmSelection(cm, sel, mode);
      cm.setSelections(cmSel.ranges, cmSel.primary);
      updateFakeCursor(cm);
    }
    function makeCmSelection(cm, sel, mode, exclusive) {
      var head = copyCursor(sel.head);
      var anchor = copyCursor(sel.anchor);
      if (mode == 'char') {
        var headOffset = !exclusive && !cursorIsBefore(sel.head, sel.anchor) ? 1 : 0;
        var anchorOffset = cursorIsBefore(sel.head, sel.anchor) ? 1 : 0;
        head = offsetCursor(sel.head, 0, headOffset);
        anchor = offsetCursor(sel.anchor, 0, anchorOffset);
        return {
          ranges: [{anchor: anchor, head: head}],
          primary: 0
        };
      } else if (mode == 'line') {
        if (!cursorIsBefore(sel.head, sel.anchor)) {
          anchor.ch = 0;

          var lastLine = cm.lastLine();
          if (head.line > lastLine) {
            head.line = lastLine;
          }
          head.ch = lineLength(cm, head.line);
        } else {
          head.ch = 0;
          anchor.ch = lineLength(cm, anchor.line);
        }
        return {
          ranges: [{anchor: anchor, head: head}],
          primary: 0
        };
      } else if (mode == 'block') {
        var top = Math.min(anchor.line, head.line),
            left = Math.min(anchor.ch, head.ch),
            bottom = Math.max(anchor.line, head.line),
            right = Math.max(anchor.ch, head.ch) + 1;
        var height = bottom - top + 1;
        var primary = head.line == top ? 0 : height - 1;
        var ranges = [];
        for (var i = 0; i < height; i++) {
          ranges.push({
            anchor: Pos(top + i, left),
            head: Pos(top + i, right)
          });
        }
        return {
          ranges: ranges,
          primary: primary
        };
      }
    }
    function getHead(cm) {
      var cur = cm.getCursor('head');
      if (cm.getSelection().length == 1) {
        // Small corner case when only 1 character is selected. The "real"
        // head is the left of head and anchor.
        cur = cursorMin(cur, cm.getCursor('anchor'));
      }
      return cur;
    }

    /**
     * If moveHead is set to false, the CodeMirror selection will not be
     * touched. The caller assumes the responsibility of putting the cursor
    * in the right place.
     */
    function exitVisualMode(cm, moveHead) {
      var vim = cm.state.vim;
      if (moveHead !== false) {
        cm.setCursor(clipCursorToContent(cm, vim.sel.head));
      }
      updateLastSelection(cm, vim);
      vim.visualMode = false;
      vim.visualLine = false;
      vim.visualBlock = false;
      if (!vim.insertMode) CodeMirror.signal(cm, "vim-mode-change", {mode: "normal"});
      clearFakeCursor(vim);
    }

    // Remove any trailing newlines from the selection. For
    // example, with the caret at the start of the last word on the line,
    // 'dw' should word, but not the newline, while 'w' should advance the
    // caret to the first character of the next line.
    function clipToLine(cm, curStart, curEnd) {
      var selection = cm.getRange(curStart, curEnd);
      // Only clip if the selection ends with trailing newline + whitespace
      if (/\n\s*$/.test(selection)) {
        var lines = selection.split('\n');
        // We know this is all whitespace.
        lines.pop();

        // Cases:
        // 1. Last word is an empty line - do not clip the trailing '\n'
        // 2. Last word is not an empty line - clip the trailing '\n'
        var line;
        // Find the line containing the last word, and clip all whitespace up
        // to it.
        for (var line = lines.pop(); lines.length > 0 && line && isWhiteSpaceString(line); line = lines.pop()) {
          curEnd.line--;
          curEnd.ch = 0;
        }
        // If the last word is not an empty line, clip an additional newline
        if (line) {
          curEnd.line--;
          curEnd.ch = lineLength(cm, curEnd.line);
        } else {
          curEnd.ch = 0;
        }
      }
    }

    // Expand the selection to line ends.
    function expandSelectionToLine(_cm, curStart, curEnd) {
      curStart.ch = 0;
      curEnd.ch = 0;
      curEnd.line++;
    }

    function findFirstNonWhiteSpaceCharacter(text) {
      if (!text) {
        return 0;
      }
      var firstNonWS = text.search(/\S/);
      return firstNonWS == -1 ? text.length : firstNonWS;
    }

    function expandWordUnderCursor(cm, inclusive, _forward, bigWord, noSymbol) {
      var cur = getHead(cm);
      var line = cm.getLine(cur.line);
      var idx = cur.ch;

      // Seek to first word or non-whitespace character, depending on if
      // noSymbol is true.
      var test = noSymbol ? wordCharTest[0] : bigWordCharTest [0];
      while (!test(line.charAt(idx))) {
        idx++;
        if (idx >= line.length) { return null; }
      }

      if (bigWord) {
        test = bigWordCharTest[0];
      } else {
        test = wordCharTest[0];
        if (!test(line.charAt(idx))) {
          test = wordCharTest[1];
        }
      }

      var end = idx, start = idx;
      while (test(line.charAt(end)) && end < line.length) { end++; }
      while (test(line.charAt(start)) && start >= 0) { start--; }
      start++;

      if (inclusive) {
        // If present, include all whitespace after word.
        // Otherwise, include all whitespace before word, except indentation.
        var wordEnd = end;
        while (/\s/.test(line.charAt(end)) && end < line.length) { end++; }
        if (wordEnd == end) {
          var wordStart = start;
          while (/\s/.test(line.charAt(start - 1)) && start > 0) { start--; }
          if (!start) { start = wordStart; }
        }
      }
      return { start: Pos(cur.line, start), end: Pos(cur.line, end) };
    }

    function recordJumpPosition(cm, oldCur, newCur) {
      if (!cursorEqual(oldCur, newCur)) {
        vimGlobalState.jumpList.add(cm, oldCur, newCur);
      }
    }

    function recordLastCharacterSearch(increment, args) {
        vimGlobalState.lastCharacterSearch.increment = increment;
        vimGlobalState.lastCharacterSearch.forward = args.forward;
        vimGlobalState.lastCharacterSearch.selectedCharacter = args.selectedCharacter;
    }

    var symbolToMode = {
        '(': 'bracket', ')': 'bracket', '{': 'bracket', '}': 'bracket',
        '[': 'section', ']': 'section',
        '*': 'comment', '/': 'comment',
        'm': 'method', 'M': 'method',
        '#': 'preprocess'
    };
    var findSymbolModes = {
      bracket: {
        isComplete: function(state) {
          if (state.nextCh === state.symb) {
            state.depth++;
            if (state.depth >= 1)return true;
          } else if (state.nextCh === state.reverseSymb) {
            state.depth--;
          }
          return false;
        }
      },
      section: {
        init: function(state) {
          state.curMoveThrough = true;
          state.symb = (state.forward ? ']' : '[') === state.symb ? '{' : '}';
        },
        isComplete: function(state) {
          return state.index === 0 && state.nextCh === state.symb;
        }
      },
      comment: {
        isComplete: function(state) {
          var found = state.lastCh === '*' && state.nextCh === '/';
          state.lastCh = state.nextCh;
          return found;
        }
      },
      // TODO: The original Vim implementation only operates on level 1 and 2.
      // The current implementation doesn't check for code block level and
      // therefore it operates on any levels.
      method: {
        init: function(state) {
          state.symb = (state.symb === 'm' ? '{' : '}');
          state.reverseSymb = state.symb === '{' ? '}' : '{';
        },
        isComplete: function(state) {
          if (state.nextCh === state.symb)return true;
          return false;
        }
      },
      preprocess: {
        init: function(state) {
          state.index = 0;
        },
        isComplete: function(state) {
          if (state.nextCh === '#') {
            var token = state.lineText.match(/#(\w+)/)[1];
            if (token === 'endif') {
              if (state.forward && state.depth === 0) {
                return true;
              }
              state.depth++;
            } else if (token === 'if') {
              if (!state.forward && state.depth === 0) {
                return true;
              }
              state.depth--;
            }
            if (token === 'else' && state.depth === 0)return true;
          }
          return false;
        }
      }
    };
    function findSymbol(cm, repeat, forward, symb) {
      var cur = copyCursor(cm.getCursor());
      var increment = forward ? 1 : -1;
      var endLine = forward ? cm.lineCount() : -1;
      var curCh = cur.ch;
      var line = cur.line;
      var lineText = cm.getLine(line);
      var state = {
        lineText: lineText,
        nextCh: lineText.charAt(curCh),
        lastCh: null,
        index: curCh,
        symb: symb,
        reverseSymb: (forward ?  { ')': '(', '}': '{' } : { '(': ')', '{': '}' })[symb],
        forward: forward,
        depth: 0,
        curMoveThrough: false
      };
      var mode = symbolToMode[symb];
      if (!mode)return cur;
      var init = findSymbolModes[mode].init;
      var isComplete = findSymbolModes[mode].isComplete;
      if (init) { init(state); }
      while (line !== endLine && repeat) {
        state.index += increment;
        state.nextCh = state.lineText.charAt(state.index);
        if (!state.nextCh) {
          line += increment;
          state.lineText = cm.getLine(line) || '';
          if (increment > 0) {
            state.index = 0;
          } else {
            var lineLen = state.lineText.length;
            state.index = (lineLen > 0) ? (lineLen-1) : 0;
          }
          state.nextCh = state.lineText.charAt(state.index);
        }
        if (isComplete(state)) {
          cur.line = line;
          cur.ch = state.index;
          repeat--;
        }
      }
      if (state.nextCh || state.curMoveThrough) {
        return Pos(line, state.index);
      }
      return cur;
    }

    /*
     * Returns the boundaries of the next word. If the cursor in the middle of
     * the word, then returns the boundaries of the current word, starting at
     * the cursor. If the cursor is at the start/end of a word, and we are going
     * forward/backward, respectively, find the boundaries of the next word.
     *
     * @param {CodeMirror} cm CodeMirror object.
     * @param {Cursor} cur The cursor position.
     * @param {boolean} forward True to search forward. False to search
     *     backward.
     * @param {boolean} bigWord True if punctuation count as part of the word.
     *     False if only [a-zA-Z0-9] characters count as part of the word.
     * @param {boolean} emptyLineIsWord True if empty lines should be treated
     *     as words.
     * @return {Object{from:number, to:number, line: number}} The boundaries of
     *     the word, or null if there are no more words.
     */
    function findWord(cm, cur, forward, bigWord, emptyLineIsWord) {
      var lineNum = cur.line;
      var pos = cur.ch;
      var line = cm.getLine(lineNum);
      var dir = forward ? 1 : -1;
      var charTests = bigWord ? bigWordCharTest: wordCharTest;

      if (emptyLineIsWord && line == '') {
        lineNum += dir;
        line = cm.getLine(lineNum);
        if (!isLine(cm, lineNum)) {
          return null;
        }
        pos = (forward) ? 0 : line.length;
      }

      while (true) {
        if (emptyLineIsWord && line == '') {
          return { from: 0, to: 0, line: lineNum };
        }
        var stop = (dir > 0) ? line.length : -1;
        var wordStart = stop, wordEnd = stop;
        // Find bounds of next word.
        while (pos != stop) {
          var foundWord = false;
          for (var i = 0; i < charTests.length && !foundWord; ++i) {
            if (charTests[i](line.charAt(pos))) {
              wordStart = pos;
              // Advance to end of word.
              while (pos != stop && charTests[i](line.charAt(pos))) {
                pos += dir;
              }
              wordEnd = pos;
              foundWord = wordStart != wordEnd;
              if (wordStart == cur.ch && lineNum == cur.line &&
                  wordEnd == wordStart + dir) {
                // We started at the end of a word. Find the next one.
                continue;
              } else {
                return {
                  from: Math.min(wordStart, wordEnd + 1),
                  to: Math.max(wordStart, wordEnd),
                  line: lineNum };
              }
            }
          }
          if (!foundWord) {
            pos += dir;
          }
        }
        // Advance to next/prev line.
        lineNum += dir;
        if (!isLine(cm, lineNum)) {
          return null;
        }
        line = cm.getLine(lineNum);
        pos = (dir > 0) ? 0 : line.length;
      }
    }

    /**
     * @param {CodeMirror} cm CodeMirror object.
     * @param {Pos} cur The position to start from.
     * @param {int} repeat Number of words to move past.
     * @param {boolean} forward True to search forward. False to search
     *     backward.
     * @param {boolean} wordEnd True to move to end of word. False to move to
     *     beginning of word.
     * @param {boolean} bigWord True if punctuation count as part of the word.
     *     False if only alphabet characters count as part of the word.
     * @return {Cursor} The position the cursor should move to.
     */
    function moveToWord(cm, cur, repeat, forward, wordEnd, bigWord) {
      var curStart = copyCursor(cur);
      var words = [];
      if (forward && !wordEnd || !forward && wordEnd) {
        repeat++;
      }
      // For 'e', empty lines are not considered words, go figure.
      var emptyLineIsWord = !(forward && wordEnd);
      for (var i = 0; i < repeat; i++) {
        var word = findWord(cm, cur, forward, bigWord, emptyLineIsWord);
        if (!word) {
          var eodCh = lineLength(cm, cm.lastLine());
          words.push(forward
              ? {line: cm.lastLine(), from: eodCh, to: eodCh}
              : {line: 0, from: 0, to: 0});
          break;
        }
        words.push(word);
        cur = Pos(word.line, forward ? (word.to - 1) : word.from);
      }
      var shortCircuit = words.length != repeat;
      var firstWord = words[0];
      var lastWord = words.pop();
      if (forward && !wordEnd) {
        // w
        if (!shortCircuit && (firstWord.from != curStart.ch || firstWord.line != curStart.line)) {
          // We did not start in the middle of a word. Discard the extra word at the end.
          lastWord = words.pop();
        }
        return Pos(lastWord.line, lastWord.from);
      } else if (forward && wordEnd) {
        return Pos(lastWord.line, lastWord.to - 1);
      } else if (!forward && wordEnd) {
        // ge
        if (!shortCircuit && (firstWord.to != curStart.ch || firstWord.line != curStart.line)) {
          // We did not start in the middle of a word. Discard the extra word at the end.
          lastWord = words.pop();
        }
        return Pos(lastWord.line, lastWord.to);
      } else {
        // b
        return Pos(lastWord.line, lastWord.from);
      }
    }

    function moveToCharacter(cm, repeat, forward, character) {
      var cur = cm.getCursor();
      var start = cur.ch;
      var idx;
      for (var i = 0; i < repeat; i ++) {
        var line = cm.getLine(cur.line);
        idx = charIdxInLine(start, line, character, forward, true);
        if (idx == -1) {
          return null;
        }
        start = idx;
      }
      return Pos(cm.getCursor().line, idx);
    }

    function moveToColumn(cm, repeat) {
      // repeat is always >= 1, so repeat - 1 always corresponds
      // to the column we want to go to.
      var line = cm.getCursor().line;
      return clipCursorToContent(cm, Pos(line, repeat - 1));
    }

    function updateMark(cm, vim, markName, pos) {
      if (!inArray(markName, validMarks)) {
        return;
      }
      if (vim.marks[markName]) {
        vim.marks[markName].clear();
      }
      vim.marks[markName] = cm.setBookmark(pos);
    }

    function charIdxInLine(start, line, character, forward, includeChar) {
      // Search for char in line.
      // motion_options: {forward, includeChar}
      // If includeChar = true, include it too.
      // If forward = true, search forward, else search backwards.
      // If char is not found on this line, do nothing
      var idx;
      if (forward) {
        idx = line.indexOf(character, start + 1);
        if (idx != -1 && !includeChar) {
          idx -= 1;
        }
      } else {
        idx = line.lastIndexOf(character, start - 1);
        if (idx != -1 && !includeChar) {
          idx += 1;
        }
      }
      return idx;
    }

    function findParagraph(cm, head, repeat, dir, inclusive) {
      var line = head.line;
      var min = cm.firstLine();
      var max = cm.lastLine();
      var start, end, i = line;
      function isEmpty(i) { return !cm.getLine(i); }
      function isBoundary(i, dir, any) {
        if (any) { return isEmpty(i) != isEmpty(i + dir); }
        return !isEmpty(i) && isEmpty(i + dir);
      }
      if (dir) {
        while (min <= i && i <= max && repeat > 0) {
          if (isBoundary(i, dir)) { repeat--; }
          i += dir;
        }
        return new Pos(i, 0);
      }

      var vim = cm.state.vim;
      if (vim.visualLine && isBoundary(line, 1, true)) {
        var anchor = vim.sel.anchor;
        if (isBoundary(anchor.line, -1, true)) {
          if (!inclusive || anchor.line != line) {
            line += 1;
          }
        }
      }
      var startState = isEmpty(line);
      for (i = line; i <= max && repeat; i++) {
        if (isBoundary(i, 1, true)) {
          if (!inclusive || isEmpty(i) != startState) {
            repeat--;
          }
        }
      }
      end = new Pos(i, 0);
      // select boundary before paragraph for the last one
      if (i > max && !startState) { startState = true; }
      else { inclusive = false; }
      for (i = line; i > min; i--) {
        if (!inclusive || isEmpty(i) == startState || i == line) {
          if (isBoundary(i, -1, true)) { break; }
        }
      }
      start = new Pos(i, 0);
      return { start: start, end: end };
    }

    function findSentence(cm, cur, repeat, dir) {

      /*
        Takes an index object
        {
          line: the line string,
          ln: line number,
          pos: index in line,
          dir: direction of traversal (-1 or 1)
        }
        and modifies the line, ln, and pos members to represent the
        next valid position or sets them to null if there are
        no more valid positions.
       */
      function nextChar(cm, idx) {
        if (idx.pos + idx.dir < 0 || idx.pos + idx.dir >= idx.line.length) {
          idx.ln += idx.dir;
          if (!isLine(cm, idx.ln)) {
            idx.line = null;
            idx.ln = null;
            idx.pos = null;
            return;
          }
          idx.line = cm.getLine(idx.ln);
          idx.pos = (idx.dir > 0) ? 0 : idx.line.length - 1;
        }
        else {
          idx.pos += idx.dir;
        }
      }

      /*
        Performs one iteration of traversal in forward direction
        Returns an index object of the new location
       */
      function forward(cm, ln, pos, dir) {
        var line = cm.getLine(ln);
        var stop = (line === "");

        var curr = {
          line: line,
          ln: ln,
          pos: pos,
          dir: dir,
        }

        var last_valid = {
          ln: curr.ln,
          pos: curr.pos,
        }

        var skip_empty_lines = (curr.line === "");

        // Move one step to skip character we start on
        nextChar(cm, curr);

        while (curr.line !== null) {
          last_valid.ln = curr.ln;
          last_valid.pos = curr.pos;

          if (curr.line === "" && !skip_empty_lines) {
            return { ln: curr.ln, pos: curr.pos, };
          }
          else if (stop && curr.line !== "" && !isWhiteSpaceString(curr.line[curr.pos])) {
            return { ln: curr.ln, pos: curr.pos, };
          }
          else if (isEndOfSentenceSymbol(curr.line[curr.pos])
            && !stop
            && (curr.pos === curr.line.length - 1
              || isWhiteSpaceString(curr.line[curr.pos + 1]))) {
            stop = true;
          }

          nextChar(cm, curr);
        }

        /*
          Set the position to the last non whitespace character on the last
          valid line in the case that we reach the end of the document.
        */
        var line = cm.getLine(last_valid.ln);
        last_valid.pos = 0;
        for(var i = line.length - 1; i >= 0; --i) {
          if (!isWhiteSpaceString(line[i])) {
            last_valid.pos = i;
            break;
          }
        }

        return last_valid;

      }

      /*
        Performs one iteration of traversal in reverse direction
        Returns an index object of the new location
       */
      function reverse(cm, ln, pos, dir) {
        var line = cm.getLine(ln);

        var curr = {
          line: line,
          ln: ln,
          pos: pos,
          dir: dir,
        }

        var last_valid = {
          ln: curr.ln,
          pos: null,
        };

        var skip_empty_lines = (curr.line === "");

        // Move one step to skip character we start on
        nextChar(cm, curr);

        while (curr.line !== null) {

          if (curr.line === "" && !skip_empty_lines) {
            if (last_valid.pos !== null) {
              return last_valid;
            }
            else {
              return { ln: curr.ln, pos: curr.pos };
            }
          }
          else if (isEndOfSentenceSymbol(curr.line[curr.pos])
              && last_valid.pos !== null
              && !(curr.ln === last_valid.ln && curr.pos + 1 === last_valid.pos)) {
            return last_valid;
          }
          else if (curr.line !== "" && !isWhiteSpaceString(curr.line[curr.pos])) {
            skip_empty_lines = false;
            last_valid = { ln: curr.ln, pos: curr.pos }
          }

          nextChar(cm, curr);
        }

        /*
          Set the position to the first non whitespace character on the last
          valid line in the case that we reach the beginning of the document.
        */
        var line = cm.getLine(last_valid.ln);
        last_valid.pos = 0;
        for(var i = 0; i < line.length; ++i) {
          if (!isWhiteSpaceString(line[i])) {
            last_valid.pos = i;
            break;
          }
        }
        return last_valid;
      }

      var curr_index = {
        ln: cur.line,
        pos: cur.ch,
      };

      while (repeat > 0) {
        if (dir < 0) {
          curr_index = reverse(cm, curr_index.ln, curr_index.pos, dir);
        }
        else {
          curr_index = forward(cm, curr_index.ln, curr_index.pos, dir);
        }
        repeat--;
      }

      return Pos(curr_index.ln, curr_index.pos);
    }

    // TODO: perhaps this finagling of start and end positions belonds
    // in codemirror/replaceRange?
    function selectCompanionObject(cm, head, symb, inclusive) {
      var cur = head, start, end;

      var bracketRegexp = ({
        '(': /[()]/, ')': /[()]/,
        '[': /[[\]]/, ']': /[[\]]/,
        '{': /[{}]/, '}': /[{}]/,
        '<': /[<>]/, '>': /[<>]/})[symb];
      var openSym = ({
        '(': '(', ')': '(',
        '[': '[', ']': '[',
        '{': '{', '}': '{',
        '<': '<', '>': '<'})[symb];
      var curChar = cm.getLine(cur.line).charAt(cur.ch);
      // Due to the behavior of scanForBracket, we need to add an offset if the
      // cursor is on a matching open bracket.
      var offset = curChar === openSym ? 1 : 0;

      start = cm.scanForBracket(Pos(cur.line, cur.ch + offset), -1, undefined, {'bracketRegex': bracketRegexp});
      end = cm.scanForBracket(Pos(cur.line, cur.ch + offset), 1, undefined, {'bracketRegex': bracketRegexp});

      if (!start || !end) {
        return { start: cur, end: cur };
      }

      start = start.pos;
      end = end.pos;

      if ((start.line == end.line && start.ch > end.ch)
          || (start.line > end.line)) {
        var tmp = start;
        start = end;
        end = tmp;
      }

      if (inclusive) {
        end.ch += 1;
      } else {
        start.ch += 1;
      }

      return { start: start, end: end };
    }

    // Takes in a symbol and a cursor and tries to simulate text objects that
    // have identical opening and closing symbols
    // TODO support across multiple lines
    function findBeginningAndEnd(cm, head, symb, inclusive) {
      var cur = copyCursor(head);
      var line = cm.getLine(cur.line);
      var chars = line.split('');
      var start, end, i, len;
      var firstIndex = chars.indexOf(symb);

      // the decision tree is to always look backwards for the beginning first,
      // but if the cursor is in front of the first instance of the symb,
      // then move the cursor forward
      if (cur.ch < firstIndex) {
        cur.ch = firstIndex;
        // Why is this line even here???
        // cm.setCursor(cur.line, firstIndex+1);
      }
      // otherwise if the cursor is currently on the closing symbol
      else if (firstIndex < cur.ch && chars[cur.ch] == symb) {
        end = cur.ch; // assign end to the current cursor
        --cur.ch; // make sure to look backwards
      }

      // if we're currently on the symbol, we've got a start
      if (chars[cur.ch] == symb && !end) {
        start = cur.ch + 1; // assign start to ahead of the cursor
      } else {
        // go backwards to find the start
        for (i = cur.ch; i > -1 && !start; i--) {
          if (chars[i] == symb) {
            start = i + 1;
          }
        }
      }

      // look forwards for the end symbol
      if (start && !end) {
        for (i = start, len = chars.length; i < len && !end; i++) {
          if (chars[i] == symb) {
            end = i;
          }
        }
      }

      // nothing found
      if (!start || !end) {
        return { start: cur, end: cur };
      }

      // include the symbols
      if (inclusive) {
        --start; ++end;
      }

      return {
        start: Pos(cur.line, start),
        end: Pos(cur.line, end)
      };
    }

    // Search functions
    defineOption('pcre', true, 'boolean');
    function SearchState() {}
    SearchState.prototype = {
      getQuery: function() {
        return vimGlobalState.query;
      },
      setQuery: function(query) {
        vimGlobalState.query = query;
      },
      getOverlay: function() {
        return this.searchOverlay;
      },
      setOverlay: function(overlay) {
        this.searchOverlay = overlay;
      },
      isReversed: function() {
        return vimGlobalState.isReversed;
      },
      setReversed: function(reversed) {
        vimGlobalState.isReversed = reversed;
      },
      getScrollbarAnnotate: function() {
        return this.annotate;
      },
      setScrollbarAnnotate: function(annotate) {
        this.annotate = annotate;
      }
    };
    function getSearchState(cm) {
      var vim = cm.state.vim;
      return vim.searchState_ || (vim.searchState_ = new SearchState());
    }
    function dialog(cm, template, shortText, onClose, options) {
      if (cm.openDialog) {
        cm.openDialog(template, onClose, { bottom: true, value: options.value,
            onKeyDown: options.onKeyDown, onKeyUp: options.onKeyUp,
            selectValueOnOpen: false});
      }
      else {
        onClose(prompt(shortText, ''));
      }
    }
    function splitBySlash(argString) {
      return splitBySeparator(argString, '/');
    }

    function findUnescapedSlashes(argString) {
      return findUnescapedSeparators(argString, '/');
    }

    function splitBySeparator(argString, separator) {
      var slashes = findUnescapedSeparators(argString, separator) || [];
      if (!slashes.length) return [];
      var tokens = [];
      // in case of strings like foo/bar
      if (slashes[0] !== 0) return;
      for (var i = 0; i < slashes.length; i++) {
        if (typeof slashes[i] == 'number')
          tokens.push(argString.substring(slashes[i] + 1, slashes[i+1]));
      }
      return tokens;
    }

    function findUnescapedSeparators(str, separator) {
      if (!separator)
        separator = '/';

      var escapeNextChar = false;
      var slashes = [];
      for (var i = 0; i < str.length; i++) {
        var c = str.charAt(i);
        if (!escapeNextChar && c == separator) {
          slashes.push(i);
        }
        escapeNextChar = !escapeNextChar && (c == '\\');
      }
      return slashes;
    }

    // Translates a search string from ex (vim) syntax into javascript form.
    function translateRegex(str) {
      // When these match, add a '\' if unescaped or remove one if escaped.
      var specials = '|(){';
      // Remove, but never add, a '\' for these.
      var unescape = '}';
      var escapeNextChar = false;
      var out = [];
      for (var i = -1; i < str.length; i++) {
        var c = str.charAt(i) || '';
        var n = str.charAt(i+1) || '';
        var specialComesNext = (n && specials.indexOf(n) != -1);
        if (escapeNextChar) {
          if (c !== '\\' || !specialComesNext) {
            out.push(c);
          }
          escapeNextChar = false;
        } else {
          if (c === '\\') {
            escapeNextChar = true;
            // Treat the unescape list as special for removing, but not adding '\'.
            if (n && unescape.indexOf(n) != -1) {
              specialComesNext = true;
            }
            // Not passing this test means removing a '\'.
            if (!specialComesNext || n === '\\') {
              out.push(c);
            }
          } else {
            out.push(c);
            if (specialComesNext && n !== '\\') {
              out.push('\\');
            }
          }
        }
      }
      return out.join('');
    }

    // Translates the replace part of a search and replace from ex (vim) syntax into
    // javascript form.  Similar to translateRegex, but additionally fixes back references
    // (translates '\[0..9]' to '$[0..9]') and follows different rules for escaping '$'.
    var charUnescapes = {'\\n': '\n', '\\r': '\r', '\\t': '\t'};
    function translateRegexReplace(str) {
      var escapeNextChar = false;
      var out = [];
      for (var i = -1; i < str.length; i++) {
        var c = str.charAt(i) || '';
        var n = str.charAt(i+1) || '';
        if (charUnescapes[c + n]) {
          out.push(charUnescapes[c+n]);
          i++;
        } else if (escapeNextChar) {
          // At any point in the loop, escapeNextChar is true if the previous
          // character was a '\' and was not escaped.
          out.push(c);
          escapeNextChar = false;
        } else {
          if (c === '\\') {
            escapeNextChar = true;
            if ((isNumber(n) || n === '$')) {
              out.push('$');
            } else if (n !== '/' && n !== '\\') {
              out.push('\\');
            }
          } else {
            if (c === '$') {
              out.push('$');
            }
            out.push(c);
            if (n === '/') {
              out.push('\\');
            }
          }
        }
      }
      return out.join('');
    }

    // Unescape \ and / in the replace part, for PCRE mode.
    var unescapes = {'\\/': '/', '\\\\': '\\', '\\n': '\n', '\\r': '\r', '\\t': '\t', '\\&':'&'};
    function unescapeRegexReplace(str) {
      var stream = new CodeMirror.StringStream(str);
      var output = [];
      while (!stream.eol()) {
        // Search for \.
        while (stream.peek() && stream.peek() != '\\') {
          output.push(stream.next());
        }
        var matched = false;
        for (var matcher in unescapes) {
          if (stream.match(matcher, true)) {
            matched = true;
            output.push(unescapes[matcher]);
            break;
          }
        }
        if (!matched) {
          // Don't change anything
          output.push(stream.next());
        }
      }
      return output.join('');
    }

    /**
     * Extract the regular expression from the query and return a Regexp object.
     * Returns null if the query is blank.
     * If ignoreCase is passed in, the Regexp object will have the 'i' flag set.
     * If smartCase is passed in, and the query contains upper case letters,
     *   then ignoreCase is overridden, and the 'i' flag will not be set.
     * If the query contains the /i in the flag part of the regular expression,
     *   then both ignoreCase and smartCase are ignored, and 'i' will be passed
     *   through to the Regex object.
     */
    function parseQuery(query, ignoreCase, smartCase) {
      // First update the last search register
      var lastSearchRegister = vimGlobalState.registerController.getRegister('/');
      lastSearchRegister.setText(query);
      // Check if the query is already a regex.
      if (query instanceof RegExp) { return query; }
      // First try to extract regex + flags from the input. If no flags found,
      // extract just the regex. IE does not accept flags directly defined in
      // the regex string in the form /regex/flags
      var slashes = findUnescapedSlashes(query);
      var regexPart;
      var forceIgnoreCase;
      if (!slashes.length) {
        // Query looks like 'regexp'
        regexPart = query;
      } else {
        // Query looks like 'regexp/...'
        regexPart = query.substring(0, slashes[0]);
        var flagsPart = query.substring(slashes[0]);
        forceIgnoreCase = (flagsPart.indexOf('i') != -1);
      }
      if (!regexPart) {
        return null;
      }
      if (!getOption('pcre')) {
        regexPart = translateRegex(regexPart);
      }
      if (smartCase) {
        ignoreCase = (/^[^A-Z]*$/).test(regexPart);
      }
      var regexp = new RegExp(regexPart,
          (ignoreCase || forceIgnoreCase) ? 'i' : undefined);
      return regexp;
    }
    function showConfirm(cm, text) {
      if (cm.openNotification) {
        cm.openNotification('<span style="color: red">' + text + '</span>',
                            {bottom: true, duration: 5000});
      } else {
        alert(text);
      }
    }
    function makePrompt(prefix, desc) {
      var raw = '<span style="font-family: monospace; white-space: pre">' +
          (prefix || "") + '<input type="text" autocorrect="off" ' +
          'autocapitalize="off" spellcheck="false"></span>';
      if (desc)
        raw += ' <span style="color: #888">' + desc + '</span>';
      return raw;
    }
    var searchPromptDesc = '(Javascript regexp)';
    function showPrompt(cm, options) {
      var shortText = (options.prefix || '') + ' ' + (options.desc || '');
      var prompt = makePrompt(options.prefix, options.desc);
      dialog(cm, prompt, shortText, options.onClose, options);
    }
    function regexEqual(r1, r2) {
      if (r1 instanceof RegExp && r2 instanceof RegExp) {
          var props = ['global', 'multiline', 'ignoreCase', 'source'];
          for (var i = 0; i < props.length; i++) {
              var prop = props[i];
              if (r1[prop] !== r2[prop]) {
                  return false;
              }
          }
          return true;
      }
      return false;
    }
    // Returns true if the query is valid.
    function updateSearchQuery(cm, rawQuery, ignoreCase, smartCase) {
      if (!rawQuery) {
        return;
      }
      var state = getSearchState(cm);
      var query = parseQuery(rawQuery, !!ignoreCase, !!smartCase);
      if (!query) {
        return;
      }
      highlightSearchMatches(cm, query);
      if (regexEqual(query, state.getQuery())) {
        return query;
      }
      state.setQuery(query);
      return query;
    }
    function searchOverlay(query) {
      if (query.source.charAt(0) == '^') {
        var matchSol = true;
      }
      return {
        token: function(stream) {
          if (matchSol && !stream.sol()) {
            stream.skipToEnd();
            return;
          }
          var match = stream.match(query, false);
          if (match) {
            if (match[0].length == 0) {
              // Matched empty string, skip to next.
              stream.next();
              return 'searching';
            }
            if (!stream.sol()) {
              // Backtrack 1 to match \b
              stream.backUp(1);
              if (!query.exec(stream.next() + match[0])) {
                stream.next();
                return null;
              }
            }
            stream.match(query);
            return 'searching';
          }
          while (!stream.eol()) {
            stream.next();
            if (stream.match(query, false)) break;
          }
        },
        query: query
      };
    }
    var highlightTimeout = 0;
    function highlightSearchMatches(cm, query) {
      clearTimeout(highlightTimeout);
      highlightTimeout = setTimeout(function() {
        var searchState = getSearchState(cm);
        var overlay = searchState.getOverlay();
        if (!overlay || query != overlay.query) {
          if (overlay) {
            cm.removeOverlay(overlay);
          }
          overlay = searchOverlay(query);
          cm.addOverlay(overlay);
          if (cm.showMatchesOnScrollbar) {
            if (searchState.getScrollbarAnnotate()) {
              searchState.getScrollbarAnnotate().clear();
            }
            searchState.setScrollbarAnnotate(cm.showMatchesOnScrollbar(query));
          }
          searchState.setOverlay(overlay);
        }
      }, 50);
    }
    function findNext(cm, prev, query, repeat) {
      if (repeat === undefined) { repeat = 1; }
      return cm.operation(function() {
        var pos = cm.getCursor();
        var cursor = cm.getSearchCursor(query, pos);
        for (var i = 0; i < repeat; i++) {
          var found = cursor.find(prev);
          if (i == 0 && found && cursorEqual(cursor.from(), pos)) { found = cursor.find(prev); }
          if (!found) {
            // SearchCursor may have returned null because it hit EOF, wrap
            // around and try again.
            cursor = cm.getSearchCursor(query,
                (prev) ? Pos(cm.lastLine()) : Pos(cm.firstLine(), 0) );
            if (!cursor.find(prev)) {
              return;
            }
          }
        }
        return cursor.from();
      });
    }
    function clearSearchHighlight(cm) {
      var state = getSearchState(cm);
      cm.removeOverlay(getSearchState(cm).getOverlay());
      state.setOverlay(null);
      if (state.getScrollbarAnnotate()) {
        state.getScrollbarAnnotate().clear();
        state.setScrollbarAnnotate(null);
      }
    }
    /**
     * Check if pos is in the specified range, INCLUSIVE.
     * Range can be specified with 1 or 2 arguments.
     * If the first range argument is an array, treat it as an array of line
     * numbers. Match pos against any of the lines.
     * If the first range argument is a number,
     *   if there is only 1 range argument, check if pos has the same line
     *       number
     *   if there are 2 range arguments, then check if pos is in between the two
     *       range arguments.
     */
    function isInRange(pos, start, end) {
      if (typeof pos != 'number') {
        // Assume it is a cursor position. Get the line number.
        pos = pos.line;
      }
      if (start instanceof Array) {
        return inArray(pos, start);
      } else {
        if (end) {
          return (pos >= start && pos <= end);
        } else {
          return pos == start;
        }
      }
    }
    function getUserVisibleLines(cm) {
      var scrollInfo = cm.getScrollInfo();
      var occludeToleranceTop = 6;
      var occludeToleranceBottom = 10;
      var from = cm.coordsChar({left:0, top: occludeToleranceTop + scrollInfo.top}, 'local');
      var bottomY = scrollInfo.clientHeight - occludeToleranceBottom + scrollInfo.top;
      var to = cm.coordsChar({left:0, top: bottomY}, 'local');
      return {top: from.line, bottom: to.line};
    }

    function getMarkPos(cm, vim, markName) {
      if (markName == '\'' || markName == '`') {
        return vimGlobalState.jumpList.find(cm, -1) || Pos(0, 0);
      } else if (markName == '.') {
        return getLastEditPos(cm);
      }

      var mark = vim.marks[markName];
      return mark && mark.find();
    }

    function getLastEditPos(cm) {
      var done = cm.doc.history.done;
      for (var i = done.length; i--;) {
        if (done[i].changes) {
          return copyCursor(done[i].changes[0].to);
        }
      }
    }

    var ExCommandDispatcher = function() {
      this.buildCommandMap_();
    };
    ExCommandDispatcher.prototype = {
      processCommand: function(cm, input, opt_params) {
        var that = this;
        cm.operation(function () {
          cm.curOp.isVimOp = true;
          that._processCommand(cm, input, opt_params);
        });
      },
      _processCommand: function(cm, input, opt_params) {
        var vim = cm.state.vim;
        var commandHistoryRegister = vimGlobalState.registerController.getRegister(':');
        var previousCommand = commandHistoryRegister.toString();
        if (vim.visualMode) {
          exitVisualMode(cm);
        }
        var inputStream = new CodeMirror.StringStream(input);
        // update ": with the latest command whether valid or invalid
        commandHistoryRegister.setText(input);
        var params = opt_params || {};
        params.input = input;
        try {
          this.parseInput_(cm, inputStream, params);
        } catch(e) {
          showConfirm(cm, e);
          throw e;
        }
        var command;
        var commandName;
        if (!params.commandName) {
          // If only a line range is defined, move to the line.
          if (params.line !== undefined) {
            commandName = 'move';
          }
        } else {
          command = this.matchCommand_(params.commandName);
          if (command) {
            commandName = command.name;
            if (command.excludeFromCommandHistory) {
              commandHistoryRegister.setText(previousCommand);
            }
            this.parseCommandArgs_(inputStream, params, command);
            if (command.type == 'exToKey') {
              // Handle Ex to Key mapping.
              for (var i = 0; i < command.toKeys.length; i++) {
                CodeMirror.Vim.handleKey(cm, command.toKeys[i], 'mapping');
              }
              return;
            } else if (command.type == 'exToEx') {
              // Handle Ex to Ex mapping.
              this.processCommand(cm, command.toInput);
              return;
            }
          }
        }
        if (!commandName) {
          showConfirm(cm, 'Not an editor command ":' + input + '"');
          return;
        }
        try {
          exCommands[commandName](cm, params);
          // Possibly asynchronous commands (e.g. substitute, which might have a
          // user confirmation), are responsible for calling the callback when
          // done. All others have it taken care of for them here.
          if ((!command || !command.possiblyAsync) && params.callback) {
            params.callback();
          }
        } catch(e) {
          showConfirm(cm, e);
          throw e;
        }
      },
      parseInput_: function(cm, inputStream, result) {
        inputStream.eatWhile(':');
        // Parse range.
        if (inputStream.eat('%')) {
          result.line = cm.firstLine();
          result.lineEnd = cm.lastLine();
        } else {
          result.line = this.parseLineSpec_(cm, inputStream);
          if (result.line !== undefined && inputStream.eat(',')) {
            result.lineEnd = this.parseLineSpec_(cm, inputStream);
          }
        }

        // Parse command name.
        var commandMatch = inputStream.match(/^(\w+|!!|@@|[!#&*<=>@~])/);
        if (commandMatch) {
          result.commandName = commandMatch[1];
        } else {
          result.commandName = inputStream.match(/.*/)[0];
        }

        return result;
      },
      parseLineSpec_: function(cm, inputStream) {
        var numberMatch = inputStream.match(/^(\d+)/);
        if (numberMatch) {
          // Absolute line number plus offset (N+M or N-M) is probably a typo,
          // not something the user actually wanted. (NB: vim does allow this.)
          return parseInt(numberMatch[1], 10) - 1;
        }
        switch (inputStream.next()) {
          case '.':
            return this.parseLineSpecOffset_(inputStream, cm.getCursor().line);
          case '$':
            return this.parseLineSpecOffset_(inputStream, cm.lastLine());
          case '\'':
            var markName = inputStream.next();
            var markPos = getMarkPos(cm, cm.state.vim, markName);
            if (!markPos) throw new Error('Mark not set');
            return this.parseLineSpecOffset_(inputStream, markPos.line);
          case '-':
          case '+':
            inputStream.backUp(1);
            // Offset is relative to current line if not otherwise specified.
            return this.parseLineSpecOffset_(inputStream, cm.getCursor().line);
          default:
            inputStream.backUp(1);
            return undefined;
        }
      },
      parseLineSpecOffset_: function(inputStream, line) {
        var offsetMatch = inputStream.match(/^([+-])?(\d+)/);
        if (offsetMatch) {
          var offset = parseInt(offsetMatch[2], 10);
          if (offsetMatch[1] == "-") {
            line -= offset;
          } else {
            line += offset;
          }
        }
        return line;
      },
      parseCommandArgs_: function(inputStream, params, command) {
        if (inputStream.eol()) {
          return;
        }
        params.argString = inputStream.match(/.*/)[0];
        // Parse command-line arguments
        var delim = command.argDelimiter || /\s+/;
        var args = trim(params.argString).split(delim);
        if (args.length && args[0]) {
          params.args = args;
        }
      },
      matchCommand_: function(commandName) {
        // Return the command in the command map that matches the shortest
        // prefix of the passed in command name. The match is guaranteed to be
        // unambiguous if the defaultExCommandMap's shortNames are set up
        // correctly. (see @code{defaultExCommandMap}).
        for (var i = commandName.length; i > 0; i--) {
          var prefix = commandName.substring(0, i);
          if (this.commandMap_[prefix]) {
            var command = this.commandMap_[prefix];
            if (command.name.indexOf(commandName) === 0) {
              return command;
            }
          }
        }
        return null;
      },
      buildCommandMap_: function() {
        this.commandMap_ = {};
        for (var i = 0; i < defaultExCommandMap.length; i++) {
          var command = defaultExCommandMap[i];
          var key = command.shortName || command.name;
          this.commandMap_[key] = command;
        }
      },
      map: function(lhs, rhs, ctx) {
        if (lhs != ':' && lhs.charAt(0) == ':') {
          if (ctx) { throw Error('Mode not supported for ex mappings'); }
          var commandName = lhs.substring(1);
          if (rhs != ':' && rhs.charAt(0) == ':') {
            // Ex to Ex mapping
            this.commandMap_[commandName] = {
              name: commandName,
              type: 'exToEx',
              toInput: rhs.substring(1),
              user: true
            };
          } else {
            // Ex to key mapping
            this.commandMap_[commandName] = {
              name: commandName,
              type: 'exToKey',
              toKeys: rhs,
              user: true
            };
          }
        } else {
          if (rhs != ':' && rhs.charAt(0) == ':') {
            // Key to Ex mapping.
            var mapping = {
              keys: lhs,
              type: 'keyToEx',
              exArgs: { input: rhs.substring(1) }
            };
            if (ctx) { mapping.context = ctx; }
            defaultKeymap.unshift(mapping);
          } else {
            // Key to key mapping
            var mapping = {
              keys: lhs,
              type: 'keyToKey',
              toKeys: rhs
            };
            if (ctx) { mapping.context = ctx; }
            defaultKeymap.unshift(mapping);
          }
        }
      },
      unmap: function(lhs, ctx) {
        if (lhs != ':' && lhs.charAt(0) == ':') {
          // Ex to Ex or Ex to key mapping
          if (ctx) { throw Error('Mode not supported for ex mappings'); }
          var commandName = lhs.substring(1);
          if (this.commandMap_[commandName] && this.commandMap_[commandName].user) {
            delete this.commandMap_[commandName];
            return;
          }
        } else {
          // Key to Ex or key to key mapping
          var keys = lhs;
          for (var i = 0; i < defaultKeymap.length; i++) {
            if (keys == defaultKeymap[i].keys
                && defaultKeymap[i].context === ctx) {
              defaultKeymap.splice(i, 1);
              return;
            }
          }
        }
        throw Error('No such mapping.');
      }
    };

    var exCommands = {
      colorscheme: function(cm, params) {
        if (!params.args || params.args.length < 1) {
          showConfirm(cm, cm.getOption('theme'));
          return;
        }
        cm.setOption('theme', params.args[0]);
      },
      map: function(cm, params, ctx) {
        var mapArgs = params.args;
        if (!mapArgs || mapArgs.length < 2) {
          if (cm) {
            showConfirm(cm, 'Invalid mapping: ' + params.input);
          }
          return;
        }
        exCommandDispatcher.map(mapArgs[0], mapArgs[1], ctx);
      },
      imap: function(cm, params) { this.map(cm, params, 'insert'); },
      nmap: function(cm, params) { this.map(cm, params, 'normal'); },
      vmap: function(cm, params) { this.map(cm, params, 'visual'); },
      unmap: function(cm, params, ctx) {
        var mapArgs = params.args;
        if (!mapArgs || mapArgs.length < 1) {
          if (cm) {
            showConfirm(cm, 'No such mapping: ' + params.input);
          }
          return;
        }
        exCommandDispatcher.unmap(mapArgs[0], ctx);
      },
      move: function(cm, params) {
        commandDispatcher.processCommand(cm, cm.state.vim, {
            type: 'motion',
            motion: 'moveToLineOrEdgeOfDocument',
            motionArgs: { forward: false, explicitRepeat: true,
              linewise: true },
            repeatOverride: params.line+1});
      },
      set: function(cm, params) {
        var setArgs = params.args;
        // Options passed through to the setOption/getOption calls. May be passed in by the
        // local/global versions of the set command
        var setCfg = params.setCfg || {};
        if (!setArgs || setArgs.length < 1) {
          if (cm) {
            showConfirm(cm, 'Invalid mapping: ' + params.input);
          }
          return;
        }
        var expr = setArgs[0].split('=');
        var optionName = expr[0];
        var value = expr[1];
        var forceGet = false;

        if (optionName.charAt(optionName.length - 1) == '?') {
          // If post-fixed with ?, then the set is actually a get.
          if (value) { throw Error('Trailing characters: ' + params.argString); }
          optionName = optionName.substring(0, optionName.length - 1);
          forceGet = true;
        }
        if (value === undefined && optionName.substring(0, 2) == 'no') {
          // To set boolean options to false, the option name is prefixed with
          // 'no'.
          optionName = optionName.substring(2);
          value = false;
        }

        var optionIsBoolean = options[optionName] && options[optionName].type == 'boolean';
        if (optionIsBoolean && value == undefined) {
          // Calling set with a boolean option sets it to true.
          value = true;
        }
        // If no value is provided, then we assume this is a get.
        if (!optionIsBoolean && value === undefined || forceGet) {
          var oldValue = getOption(optionName, cm, setCfg);
          if (oldValue instanceof Error) {
            showConfirm(cm, oldValue.message);
          } else if (oldValue === true || oldValue === false) {
            showConfirm(cm, ' ' + (oldValue ? '' : 'no') + optionName);
          } else {
            showConfirm(cm, '  ' + optionName + '=' + oldValue);
          }
        } else {
          var setOptionReturn = setOption(optionName, value, cm, setCfg);
          if (setOptionReturn instanceof Error) {
            showConfirm(cm, setOptionReturn.message);
          }
        }
      },
      setlocal: function (cm, params) {
        // setCfg is passed through to setOption
        params.setCfg = {scope: 'local'};
        this.set(cm, params);
      },
      setglobal: function (cm, params) {
        // setCfg is passed through to setOption
        params.setCfg = {scope: 'global'};
        this.set(cm, params);
      },
      registers: function(cm, params) {
        var regArgs = params.args;
        var registers = vimGlobalState.registerController.registers;
        var regInfo = '----------Registers----------<br><br>';
        if (!regArgs) {
          for (var registerName in registers) {
            var text = registers[registerName].toString();
            if (text.length) {
              regInfo += '"' + registerName + '    ' + text + '<br>';
            }
          }
        } else {
          var registerName;
          regArgs = regArgs.join('');
          for (var i = 0; i < regArgs.length; i++) {
            registerName = regArgs.charAt(i);
            if (!vimGlobalState.registerController.isValidRegister(registerName)) {
              continue;
            }
            var register = registers[registerName] || new Register();
            regInfo += '"' + registerName + '    ' + register.toString() + '<br>';
          }
        }
        showConfirm(cm, regInfo);
      },
      sort: function(cm, params) {
        var reverse, ignoreCase, unique, number, pattern;
        function parseArgs() {
          if (params.argString) {
            var args = new CodeMirror.StringStream(params.argString);
            if (args.eat('!')) { reverse = true; }
            if (args.eol()) { return; }
            if (!args.eatSpace()) { return 'Invalid arguments'; }
            var opts = args.match(/([dinuox]+)?\s*(\/.+\/)?\s*/);
            if (!opts && !args.eol()) { return 'Invalid arguments'; }
            if (opts[1]) {
              ignoreCase = opts[1].indexOf('i') != -1;
              unique = opts[1].indexOf('u') != -1;
              var decimal = opts[1].indexOf('d') != -1 || opts[1].indexOf('n') != -1 && 1;
              var hex = opts[1].indexOf('x') != -1 && 1;
              var octal = opts[1].indexOf('o') != -1 && 1;
              if (decimal + hex + octal > 1) { return 'Invalid arguments'; }
              number = decimal && 'decimal' || hex && 'hex' || octal && 'octal';
            }
            if (opts[2]) {
              pattern = new RegExp(opts[2].substr(1, opts[2].length - 2), ignoreCase ? 'i' : '');
            }
          }
        }
        var err = parseArgs();
        if (err) {
          showConfirm(cm, err + ': ' + params.argString);
          return;
        }
        var lineStart = params.line || cm.firstLine();
        var lineEnd = params.lineEnd || params.line || cm.lastLine();
        if (lineStart == lineEnd) { return; }
        var curStart = Pos(lineStart, 0);
        var curEnd = Pos(lineEnd, lineLength(cm, lineEnd));
        var text = cm.getRange(curStart, curEnd).split('\n');
        var numberRegex = pattern ? pattern :
           (number == 'decimal') ? /(-?)([\d]+)/ :
           (number == 'hex') ? /(-?)(?:0x)?([0-9a-f]+)/i :
           (number == 'octal') ? /([0-7]+)/ : null;
        var radix = (number == 'decimal') ? 10 : (number == 'hex') ? 16 : (number == 'octal') ? 8 : null;
        var numPart = [], textPart = [];
        if (number || pattern) {
          for (var i = 0; i < text.length; i++) {
            var matchPart = pattern ? text[i].match(pattern) : null;
            if (matchPart && matchPart[0] != '') {
              numPart.push(matchPart);
            } else if (!pattern && numberRegex.exec(text[i])) {
              numPart.push(text[i]);
            } else {
              textPart.push(text[i]);
            }
          }
        } else {
          textPart = text;
        }
        function compareFn(a, b) {
          if (reverse) { var tmp; tmp = a; a = b; b = tmp; }
          if (ignoreCase) { a = a.toLowerCase(); b = b.toLowerCase(); }
          var anum = number && numberRegex.exec(a);
          var bnum = number && numberRegex.exec(b);
          if (!anum) { return a < b ? -1 : 1; }
          anum = parseInt((anum[1] + anum[2]).toLowerCase(), radix);
          bnum = parseInt((bnum[1] + bnum[2]).toLowerCase(), radix);
          return anum - bnum;
        }
        function comparePatternFn(a, b) {
          if (reverse) { var tmp; tmp = a; a = b; b = tmp; }
          if (ignoreCase) { a[0] = a[0].toLowerCase(); b[0] = b[0].toLowerCase(); }
          return (a[0] < b[0]) ? -1 : 1;
        }
        numPart.sort(pattern ? comparePatternFn : compareFn);
        if (pattern) {
          for (var i = 0; i < numPart.length; i++) {
            numPart[i] = numPart[i].input;
          }
        } else if (!number) { textPart.sort(compareFn); }
        text = (!reverse) ? textPart.concat(numPart) : numPart.concat(textPart);
        if (unique) { // Remove duplicate lines
          var textOld = text;
          var lastLine;
          text = [];
          for (var i = 0; i < textOld.length; i++) {
            if (textOld[i] != lastLine) {
              text.push(textOld[i]);
            }
            lastLine = textOld[i];
          }
        }
        cm.replaceRange(text.join('\n'), curStart, curEnd);
      },
      global: function(cm, params) {
        // a global command is of the form
        // :[range]g/pattern/[cmd]
        // argString holds the string /pattern/[cmd]
        var argString = params.argString;
        if (!argString) {
          showConfirm(cm, 'Regular Expression missing from global');
          return;
        }
        // range is specified here
        var lineStart = (params.line !== undefined) ? params.line : cm.firstLine();
        var lineEnd = params.lineEnd || params.line || cm.lastLine();
        // get the tokens from argString
        var tokens = splitBySlash(argString);
        var regexPart = argString, cmd;
        if (tokens.length) {
          regexPart = tokens[0];
          cmd = tokens.slice(1, tokens.length).join('/');
        }
        if (regexPart) {
          // If regex part is empty, then use the previous query. Otherwise
          // use the regex part as the new query.
          try {
           updateSearchQuery(cm, regexPart, true /** ignoreCase */,
             true /** smartCase */);
          } catch (e) {
           showConfirm(cm, 'Invalid regex: ' + regexPart);
           return;
          }
        }
        // now that we have the regexPart, search for regex matches in the
        // specified range of lines
        var query = getSearchState(cm).getQuery();
        var matchedLines = [], content = '';
        for (var i = lineStart; i <= lineEnd; i++) {
          var matched = query.test(cm.getLine(i));
          if (matched) {
            matchedLines.push(i+1);
            content+= cm.getLine(i) + '<br>';
          }
        }
        // if there is no [cmd], just display the list of matched lines
        if (!cmd) {
          showConfirm(cm, content);
          return;
        }
        var index = 0;
        var nextCommand = function() {
          if (index < matchedLines.length) {
            var command = matchedLines[index] + cmd;
            exCommandDispatcher.processCommand(cm, command, {
              callback: nextCommand
            });
          }
          index++;
        };
        nextCommand();
      },
      substitute: function(cm, params) {
        if (!cm.getSearchCursor) {
          throw new Error('Search feature not available. Requires searchcursor.js or ' +
              'any other getSearchCursor implementation.');
        }
        var argString = params.argString;
        var tokens = argString ? splitBySeparator(argString, argString[0]) : [];
        var regexPart, replacePart = '', trailing, flagsPart, count;
        var confirm = false; // Whether to confirm each replace.
        var global = false; // True to replace all instances on a line, false to replace only 1.
        if (tokens.length) {
          regexPart = tokens[0];
          if (getOption('pcre') && regexPart !== '') {
              regexPart = new RegExp(regexPart).source; //normalize not escaped characters
          }
          replacePart = tokens[1];
          if (regexPart && regexPart[regexPart.length - 1] === '$') {
            regexPart = regexPart.slice(0, regexPart.length - 1) + '\\n';
            replacePart = replacePart ? replacePart + '\n' : '\n';
          }
          if (replacePart !== undefined) {
            if (getOption('pcre')) {
              replacePart = unescapeRegexReplace(replacePart.replace(/([^\\])&/g,"$1$$&"));
            } else {
              replacePart = translateRegexReplace(replacePart);
            }
            vimGlobalState.lastSubstituteReplacePart = replacePart;
          }
          trailing = tokens[2] ? tokens[2].split(' ') : [];
        } else {
          // either the argString is empty or its of the form ' hello/world'
          // actually splitBySlash returns a list of tokens
          // only if the string starts with a '/'
          if (argString && argString.length) {
            showConfirm(cm, 'Substitutions should be of the form ' +
                ':s/pattern/replace/');
            return;
          }
        }
        // After the 3rd slash, we can have flags followed by a space followed
        // by count.
        if (trailing) {
          flagsPart = trailing[0];
          count = parseInt(trailing[1]);
          if (flagsPart) {
            if (flagsPart.indexOf('c') != -1) {
              confirm = true;
              flagsPart.replace('c', '');
            }
            if (flagsPart.indexOf('g') != -1) {
              global = true;
              flagsPart.replace('g', '');
            }
            if (getOption('pcre')) {
               regexPart = regexPart + '/' + flagsPart;
            } else {
               regexPart = regexPart.replace(/\//g, "\\/") + '/' + flagsPart;
            }
          }
        }
        if (regexPart) {
          // If regex part is empty, then use the previous query. Otherwise use
          // the regex part as the new query.
          try {
            updateSearchQuery(cm, regexPart, true /** ignoreCase */,
              true /** smartCase */);
          } catch (e) {
            showConfirm(cm, 'Invalid regex: ' + regexPart);
            return;
          }
        }
        replacePart = replacePart || vimGlobalState.lastSubstituteReplacePart;
        if (replacePart === undefined) {
          showConfirm(cm, 'No previous substitute regular expression');
          return;
        }
        var state = getSearchState(cm);
        var query = state.getQuery();
        var lineStart = (params.line !== undefined) ? params.line : cm.getCursor().line;
        var lineEnd = params.lineEnd || lineStart;
        if (lineStart == cm.firstLine() && lineEnd == cm.lastLine()) {
          lineEnd = Infinity;
        }
        if (count) {
          lineStart = lineEnd;
          lineEnd = lineStart + count - 1;
        }
        var startPos = clipCursorToContent(cm, Pos(lineStart, 0));
        var cursor = cm.getSearchCursor(query, startPos);
        doReplace(cm, confirm, global, lineStart, lineEnd, cursor, query, replacePart, params.callback);
      },
      redo: CodeMirror.commands.redo,
      undo: CodeMirror.commands.undo,
      write: function(cm) {
        if (CodeMirror.commands.save) {
          // If a save command is defined, call it.
          CodeMirror.commands.save(cm);
        } else if (cm.save) {
          // Saves to text area if no save command is defined and cm.save() is available.
          cm.save();
        }
      },
      nohlsearch: function(cm) {
        clearSearchHighlight(cm);
      },
      yank: function (cm) {
        var cur = copyCursor(cm.getCursor());
        var line = cur.line;
        var lineText = cm.getLine(line);
        vimGlobalState.registerController.pushText(
          '0', 'yank', lineText, true, true);
      },
      delmarks: function(cm, params) {
        if (!params.argString || !trim(params.argString)) {
          showConfirm(cm, 'Argument required');
          return;
        }

        var state = cm.state.vim;
        var stream = new CodeMirror.StringStream(trim(params.argString));
        while (!stream.eol()) {
          stream.eatSpace();

          // Record the streams position at the beginning of the loop for use
          // in error messages.
          var count = stream.pos;

          if (!stream.match(/[a-zA-Z]/, false)) {
            showConfirm(cm, 'Invalid argument: ' + params.argString.substring(count));
            return;
          }

          var sym = stream.next();
          // Check if this symbol is part of a range
          if (stream.match('-', true)) {
            // This symbol is part of a range.

            // The range must terminate at an alphabetic character.
            if (!stream.match(/[a-zA-Z]/, false)) {
              showConfirm(cm, 'Invalid argument: ' + params.argString.substring(count));
              return;
            }

            var startMark = sym;
            var finishMark = stream.next();
            // The range must terminate at an alphabetic character which
            // shares the same case as the start of the range.
            if (isLowerCase(startMark) && isLowerCase(finishMark) ||
                isUpperCase(startMark) && isUpperCase(finishMark)) {
              var start = startMark.charCodeAt(0);
              var finish = finishMark.charCodeAt(0);
              if (start >= finish) {
                showConfirm(cm, 'Invalid argument: ' + params.argString.substring(count));
                return;
              }

              // Because marks are always ASCII values, and we have
              // determined that they are the same case, we can use
              // their char codes to iterate through the defined range.
              for (var j = 0; j <= finish - start; j++) {
                var mark = String.fromCharCode(start + j);
                delete state.marks[mark];
              }
            } else {
              showConfirm(cm, 'Invalid argument: ' + startMark + '-');
              return;
            }
          } else {
            // This symbol is a valid mark, and is not part of a range.
            delete state.marks[sym];
          }
        }
      }
    };

    var exCommandDispatcher = new ExCommandDispatcher();

    /**
    * @param {CodeMirror} cm CodeMirror instance we are in.
    * @param {boolean} confirm Whether to confirm each replace.
    * @param {Cursor} lineStart Line to start replacing from.
    * @param {Cursor} lineEnd Line to stop replacing at.
    * @param {RegExp} query Query for performing matches with.
    * @param {string} replaceWith Text to replace matches with. May contain $1,
    *     $2, etc for replacing captured groups using Javascript replace.
    * @param {function()} callback A callback for when the replace is done.
    */
    function doReplace(cm, confirm, global, lineStart, lineEnd, searchCursor, query,
        replaceWith, callback) {
      // Set up all the functions.
      cm.state.vim.exMode = true;
      var done = false;
      var lastPos = searchCursor.from();
      function replaceAll() {
        cm.operation(function() {
          while (!done) {
            replace();
            next();
          }
          stop();
        });
      }
      function replace() {
        var text = cm.getRange(searchCursor.from(), searchCursor.to());
        var newText = text.replace(query, replaceWith);
        searchCursor.replace(newText);
      }
      function next() {
        // The below only loops to skip over multiple occurrences on the same
        // line when 'global' is not true.
        while(searchCursor.findNext() &&
              isInRange(searchCursor.from(), lineStart, lineEnd)) {
          if (!global && lastPos && searchCursor.from().line == lastPos.line) {
            continue;
          }
          cm.scrollIntoView(searchCursor.from(), 30);
          cm.setSelection(searchCursor.from(), searchCursor.to());
          lastPos = searchCursor.from();
          done = false;
          return;
        }
        done = true;
      }
      function stop(close) {
        if (close) { close(); }
        cm.focus();
        if (lastPos) {
          cm.setCursor(lastPos);
          var vim = cm.state.vim;
          vim.exMode = false;
          vim.lastHPos = vim.lastHSPos = lastPos.ch;
        }
        if (callback) { callback(); }
      }
      function onPromptKeyDown(e, _value, close) {
        // Swallow all keys.
        CodeMirror.e_stop(e);
        var keyName = CodeMirror.keyName(e);
        switch (keyName) {
          case 'Y':
            replace(); next(); break;
          case 'N':
            next(); break;
          case 'A':
            // replaceAll contains a call to close of its own. We don't want it
            // to fire too early or multiple times.
            var savedCallback = callback;
            callback = undefined;
            cm.operation(replaceAll);
            callback = savedCallback;
            break;
          case 'L':
            replace();
            // fall through and exit.
          case 'Q':
          case 'Esc':
          case 'Ctrl-C':
          case 'Ctrl-[':
            stop(close);
            break;
        }
        if (done) { stop(close); }
        return true;
      }

      // Actually do replace.
      next();
      if (done) {
        showConfirm(cm, 'No matches for ' + query.source);
        return;
      }
      if (!confirm) {
        replaceAll();
        if (callback) { callback(); }
        return;
      }
      showPrompt(cm, {
        prefix: 'replace with <strong>' + replaceWith + '</strong> (y/n/a/q/l)',
        onKeyDown: onPromptKeyDown
      });
    }

    CodeMirror.keyMap.vim = {
      attach: attachVimMap,
      detach: detachVimMap,
      call: cmKey
    };

    function exitInsertMode(cm) {
      var vim = cm.state.vim;
      var macroModeState = vimGlobalState.macroModeState;
      var insertModeChangeRegister = vimGlobalState.registerController.getRegister('.');
      var isPlaying = macroModeState.isPlaying;
      var lastChange = macroModeState.lastInsertModeChanges;
      if (!isPlaying) {
        cm.off('change', onChange);
        CodeMirror.off(cm.getInputField(), 'keydown', onKeyEventTargetKeyDown);
      }
      if (!isPlaying && vim.insertModeRepeat > 1) {
        // Perform insert mode repeat for commands like 3,a and 3,o.
        repeatLastEdit(cm, vim, vim.insertModeRepeat - 1,
            true /** repeatForInsert */);
        vim.lastEditInputState.repeatOverride = vim.insertModeRepeat;
      }
      delete vim.insertModeRepeat;
      vim.insertMode = false;
      cm.setCursor(cm.getCursor().line, cm.getCursor().ch-1);
      cm.setOption('keyMap', 'vim');
      cm.setOption('disableInput', true);
      cm.toggleOverwrite(false); // exit replace mode if we were in it.
      // update the ". register before exiting insert mode
      insertModeChangeRegister.setText(lastChange.changes.join(''));
      CodeMirror.signal(cm, "vim-mode-change", {mode: "normal"});
      if (macroModeState.isRecording) {
        logInsertModeChange(macroModeState);
      }
    }

    function _mapCommand(command) {
      defaultKeymap.unshift(command);
    }

    function mapCommand(keys, type, name, args, extra) {
      var command = {keys: keys, type: type};
      command[type] = name;
      command[type + "Args"] = args;
      for (var key in extra)
        command[key] = extra[key];
      _mapCommand(command);
    }

    // The timeout in milliseconds for the two-character ESC keymap should be
    // adjusted according to your typing speed to prevent false positives.
    defineOption('insertModeEscKeysTimeout', 200, 'number');

    CodeMirror.keyMap['vim-insert'] = {
      // TODO: override navigation keys so that Esc will cancel automatic
      // indentation from o, O, i_<CR>
      fallthrough: ['default'],
      attach: attachVimMap,
      detach: detachVimMap,
      call: cmKey
    };

    CodeMirror.keyMap['vim-replace'] = {
      'Backspace': 'goCharLeft',
      fallthrough: ['vim-insert'],
      attach: attachVimMap,
      detach: detachVimMap,
      call: cmKey
    };

    function executeMacroRegister(cm, vim, macroModeState, registerName) {
      var register = vimGlobalState.registerController.getRegister(registerName);
      if (registerName == ':') {
        // Read-only register containing last Ex command.
        if (register.keyBuffer[0]) {
          exCommandDispatcher.processCommand(cm, register.keyBuffer[0]);
        }
        macroModeState.isPlaying = false;
        return;
      }
      var keyBuffer = register.keyBuffer;
      var imc = 0;
      macroModeState.isPlaying = true;
      macroModeState.replaySearchQueries = register.searchQueries.slice(0);
      for (var i = 0; i < keyBuffer.length; i++) {
        var text = keyBuffer[i];
        var match, key;
        while (text) {
          // Pull off one command key, which is either a single character
          // or a special sequence wrapped in '<' and '>', e.g. '<Space>'.
          match = (/<\w+-.+?>|<\w+>|./).exec(text);
          key = match[0];
          text = text.substring(match.index + key.length);
          CodeMirror.Vim.handleKey(cm, key, 'macro');
          if (vim.insertMode) {
            var changes = register.insertModeChanges[imc++].changes;
            vimGlobalState.macroModeState.lastInsertModeChanges.changes =
                changes;
            repeatInsertModeChanges(cm, changes, 1);
            exitInsertMode(cm);
          }
        }
      }
      macroModeState.isPlaying = false;
    }

    function logKey(macroModeState, key) {
      if (macroModeState.isPlaying) { return; }
      var registerName = macroModeState.latestRegister;
      var register = vimGlobalState.registerController.getRegister(registerName);
      if (register) {
        register.pushText(key);
      }
    }

    function logInsertModeChange(macroModeState) {
      if (macroModeState.isPlaying) { return; }
      var registerName = macroModeState.latestRegister;
      var register = vimGlobalState.registerController.getRegister(registerName);
      if (register && register.pushInsertModeChanges) {
        register.pushInsertModeChanges(macroModeState.lastInsertModeChanges);
      }
    }

    function logSearchQuery(macroModeState, query) {
      if (macroModeState.isPlaying) { return; }
      var registerName = macroModeState.latestRegister;
      var register = vimGlobalState.registerController.getRegister(registerName);
      if (register && register.pushSearchQuery) {
        register.pushSearchQuery(query);
      }
    }

    /**
     * Listens for changes made in insert mode.
     * Should only be active in insert mode.
     */
    function onChange(cm, changeObj) {
      var macroModeState = vimGlobalState.macroModeState;
      var lastChange = macroModeState.lastInsertModeChanges;
      if (!macroModeState.isPlaying) {
        while(changeObj) {
          lastChange.expectCursorActivityForChange = true;
          if (lastChange.ignoreCount > 1) {
            lastChange.ignoreCount--;
          } else if (changeObj.origin == '+input' || changeObj.origin == 'paste'
              || changeObj.origin === undefined /* only in testing */) {
            var selectionCount = cm.listSelections().length;
            if (selectionCount > 1)
              lastChange.ignoreCount = selectionCount;
            var text = changeObj.text.join('\n');
            if (lastChange.maybeReset) {
              lastChange.changes = [];
              lastChange.maybeReset = false;
            }
            if (text) {
              if (cm.state.overwrite && !/\n/.test(text)) {
                lastChange.changes.push([text]);
              } else {
                lastChange.changes.push(text);
              }
            }
          }
          // Change objects may be chained with next.
          changeObj = changeObj.next;
        }
      }
    }

    /**
    * Listens for any kind of cursor activity on CodeMirror.
    */
    function onCursorActivity(cm) {
      var vim = cm.state.vim;
      if (vim.insertMode) {
        // Tracking cursor activity in insert mode (for macro support).
        var macroModeState = vimGlobalState.macroModeState;
        if (macroModeState.isPlaying) { return; }
        var lastChange = macroModeState.lastInsertModeChanges;
        if (lastChange.expectCursorActivityForChange) {
          lastChange.expectCursorActivityForChange = false;
        } else {
          // Cursor moved outside the context of an edit. Reset the change.
          lastChange.maybeReset = true;
        }
      } else if (!cm.curOp.isVimOp) {
        handleExternalSelection(cm, vim);
      }
      if (vim.visualMode) {
        updateFakeCursor(cm);
      }
    }
    /**
     * Keeps track of a fake cursor to support visual mode cursor behavior.
     */
    function updateFakeCursor(cm) {
      var className = 'cm-animate-fat-cursor';
      var vim = cm.state.vim;
      var from = clipCursorToContent(cm, copyCursor(vim.sel.head));
      var to = offsetCursor(from, 0, 1);
      clearFakeCursor(vim);
      // In visual mode, the cursor may be positioned over EOL.
      if (from.ch == cm.getLine(from.line).length) {
        var widget = document.createElement("span");
        widget.textContent = "\u00a0";
        widget.className = className;
        vim.fakeCursorBookmark = cm.setBookmark(from, {widget: widget});
      } else {
        vim.fakeCursor = cm.markText(from, to, {className: className});
      }
    }
    function clearFakeCursor(vim) {
      if (vim.fakeCursor) {
        vim.fakeCursor.clear();
        vim.fakeCursor = null;
      }
      if (vim.fakeCursorBookmark) {
        vim.fakeCursorBookmark.clear();
        vim.fakeCursorBookmark = null;
      }
    }
    function handleExternalSelection(cm, vim) {
      var anchor = cm.getCursor('anchor');
      var head = cm.getCursor('head');
      // Enter or exit visual mode to match mouse selection.
      if (vim.visualMode && !cm.somethingSelected()) {
        exitVisualMode(cm, false);
      } else if (!vim.visualMode && !vim.insertMode && cm.somethingSelected()) {
        vim.visualMode = true;
        vim.visualLine = false;
        CodeMirror.signal(cm, "vim-mode-change", {mode: "visual"});
      }
      if (vim.visualMode) {
        // Bind CodeMirror selection model to vim selection model.
        // Mouse selections are considered visual characterwise.
        var headOffset = !cursorIsBefore(head, anchor) ? -1 : 0;
        var anchorOffset = cursorIsBefore(head, anchor) ? -1 : 0;
        head = offsetCursor(head, 0, headOffset);
        anchor = offsetCursor(anchor, 0, anchorOffset);
        vim.sel = {
          anchor: anchor,
          head: head
        };
        updateMark(cm, vim, '<', cursorMin(head, anchor));
        updateMark(cm, vim, '>', cursorMax(head, anchor));
      } else if (!vim.insertMode) {
        // Reset lastHPos if selection was modified by something outside of vim mode e.g. by mouse.
        vim.lastHPos = cm.getCursor().ch;
      }
    }

    /** Wrapper for special keys pressed in insert mode */
    function InsertModeKey(keyName) {
      this.keyName = keyName;
    }

    /**
    * Handles raw key down events from the text area.
    * - Should only be active in insert mode.
    * - For recording deletes in insert mode.
    */
    function onKeyEventTargetKeyDown(e) {
      var macroModeState = vimGlobalState.macroModeState;
      var lastChange = macroModeState.lastInsertModeChanges;
      var keyName = CodeMirror.keyName(e);
      if (!keyName) { return; }
      function onKeyFound() {
        if (lastChange.maybeReset) {
          lastChange.changes = [];
          lastChange.maybeReset = false;
        }
        lastChange.changes.push(new InsertModeKey(keyName));
        return true;
      }
      if (keyName.indexOf('Delete') != -1 || keyName.indexOf('Backspace') != -1) {
        CodeMirror.lookupKey(keyName, 'vim-insert', onKeyFound);
      }
    }

    /**
     * Repeats the last edit, which includes exactly 1 command and at most 1
     * insert. Operator and motion commands are read from lastEditInputState,
     * while action commands are read from lastEditActionCommand.
     *
     * If repeatForInsert is true, then the function was called by
     * exitInsertMode to repeat the insert mode changes the user just made. The
     * corresponding enterInsertMode call was made with a count.
     */
    function repeatLastEdit(cm, vim, repeat, repeatForInsert) {
      var macroModeState = vimGlobalState.macroModeState;
      macroModeState.isPlaying = true;
      var isAction = !!vim.lastEditActionCommand;
      var cachedInputState = vim.inputState;
      function repeatCommand() {
        if (isAction) {
          commandDispatcher.processAction(cm, vim, vim.lastEditActionCommand);
        } else {
          commandDispatcher.evalInput(cm, vim);
        }
      }
      function repeatInsert(repeat) {
        if (macroModeState.lastInsertModeChanges.changes.length > 0) {
          // For some reason, repeat cw in desktop VIM does not repeat
          // insert mode changes. Will conform to that behavior.
          repeat = !vim.lastEditActionCommand ? 1 : repeat;
          var changeObject = macroModeState.lastInsertModeChanges;
          repeatInsertModeChanges(cm, changeObject.changes, repeat);
        }
      }
      vim.inputState = vim.lastEditInputState;
      if (isAction && vim.lastEditActionCommand.interlaceInsertRepeat) {
        // o and O repeat have to be interlaced with insert repeats so that the
        // insertions appear on separate lines instead of the last line.
        for (var i = 0; i < repeat; i++) {
          repeatCommand();
          repeatInsert(1);
        }
      } else {
        if (!repeatForInsert) {
          // Hack to get the cursor to end up at the right place. If I is
          // repeated in insert mode repeat, cursor will be 1 insert
          // change set left of where it should be.
          repeatCommand();
        }
        repeatInsert(repeat);
      }
      vim.inputState = cachedInputState;
      if (vim.insertMode && !repeatForInsert) {
        // Don't exit insert mode twice. If repeatForInsert is set, then we
        // were called by an exitInsertMode call lower on the stack.
        exitInsertMode(cm);
      }
      macroModeState.isPlaying = false;
    }

    function repeatInsertModeChanges(cm, changes, repeat) {
      function keyHandler(binding) {
        if (typeof binding == 'string') {
          CodeMirror.commands[binding](cm);
        } else {
          binding(cm);
        }
        return true;
      }
      var head = cm.getCursor('head');
      var visualBlock = vimGlobalState.macroModeState.lastInsertModeChanges.visualBlock;
      if (visualBlock) {
        // Set up block selection again for repeating the changes.
        selectForInsert(cm, head, visualBlock + 1);
        repeat = cm.listSelections().length;
        cm.setCursor(head);
      }
      for (var i = 0; i < repeat; i++) {
        if (visualBlock) {
          cm.setCursor(offsetCursor(head, i, 0));
        }
        for (var j = 0; j < changes.length; j++) {
          var change = changes[j];
          if (change instanceof InsertModeKey) {
            CodeMirror.lookupKey(change.keyName, 'vim-insert', keyHandler);
          } else if (typeof change == "string") {
            var cur = cm.getCursor();
            cm.replaceRange(change, cur, cur);
          } else {
            var start = cm.getCursor();
            var end = offsetCursor(start, 0, change[0].length);
            cm.replaceRange(change[0], start, end);
          }
        }
      }
      if (visualBlock) {
        cm.setCursor(offsetCursor(head, 0, 1));
      }
    }

    resetVimGlobalState();
    return vimApi;
  };
  // Initialize Vim and make it available as an API.
  CodeMirror.Vim = Vim();
});

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.

define('edit/js/editor',[
    'jquery',
    'base/js/utils',
    'base/js/i18n',
    'base/js/dialog',
    'codemirror/lib/codemirror',
    'codemirror/mode/meta',
    'codemirror/addon/comment/comment',
    'codemirror/addon/dialog/dialog',
    'codemirror/addon/edit/closebrackets',
    'codemirror/addon/edit/matchbrackets',
    'codemirror/addon/search/searchcursor',
    'codemirror/addon/search/search',
    'codemirror/keymap/emacs',
    'codemirror/keymap/sublime',
    'codemirror/keymap/vim',
    ],
function(
    $,
    utils,
    i18n,
    dialog,
    CodeMirror
) {
    "use strict";

    var Editor = function(selector, options) {
        var that = this;
        this.selector = selector;
        this.clean = false;
        this.contents = options.contents;
        this.events = options.events;
        this.base_url = options.base_url;
        this.file_path = options.file_path;
        this.config = options.config;
        this.file_extension_modes = options.file_extension_modes || {};
        this.last_modified = null;
        this._changed_on_disk_dialog = null;

        this.codemirror = new CodeMirror($(this.selector)[0]);
        this.codemirror.on('changes', function(cm, changes){
            that._clean_state();
        });
        this.generation = -1;
        
        // It appears we have to set commands on the CodeMirror class, not the
        // instance. I'd like to be wrong, but since there should only be one CM
        // instance on the page, this is good enough for now.
        CodeMirror.commands.save = $.proxy(this.save, this);
        
        this.save_enabled = false;
        
        this.config.loaded.then(function () {
            // load codemirror config
            var cfg = that.config.data.Editor || {};
            var cmopts = $.extend(true, {}, // true = recursive copy
                Editor.default_codemirror_options,
                cfg.codemirror_options || {}
            );
            that._set_codemirror_options(cmopts);
            that.events.trigger('config_changed.Editor', {config: that.config});
            if (cfg.file_extension_modes) {
                // check for file extension in user preferences
                var modename = cfg.file_extension_modes[that._get_file_extension()];
                if (modename) {
                    var modeinfo = CodeMirror.findModeByName(modename);
                    if (modeinfo) {
                        that.set_codemirror_mode(modeinfo);
                    }
                }
            }
            that._clean_state();
        });
        this.clean_sel = $('<div/>');
        $('.last_modified').before(this.clean_sel);
        this.clean_sel.addClass('dirty-indicator-dirty');
    };
    
    // default CodeMirror options
    Editor.default_codemirror_options = {
        extraKeys: {
            "Cmd-Right": "goLineRight",
            "End": "goLineRight",
            "Cmd-Left": "goLineLeft",
            "Tab": "indentMore",
            "Shift-Tab" : "indentLess",
            "Cmd-/" : "toggleComment",
            "Ctrl-/" : "toggleComment",
        },
        indentUnit: 4,
        theme: "ipython",
        lineNumbers: true,
        lineWrapping: true
    };
    
    Editor.prototype.load = function() {
        /** load the file */
        var that = this;
        var cm = this.codemirror;
        return this.contents.get(this.file_path, {type: 'file', format: 'text'})
            .then(function(model) {
                cm.setValue(model.content);

                // Setting the file's initial value creates a history entry,
                // which we don't want.
                cm.clearHistory();
                that._set_mode_for_model(model);
                that.save_enabled = true;
                that.generation = cm.changeGeneration();
                that.events.trigger("file_loaded.Editor", model);
                that._clean_state();
                that.last_modified = new Date(model.last_modified);
            }).catch(
            function(error) {
                that.events.trigger("file_load_failed.Editor", error);
                console.warn('Error loading: ', error);
                cm.setValue("Error! " + error.message +
                                "\nSaving disabled.\nSee Console for more details.");
                cm.setOption('readOnly','nocursor');
                that.save_enabled = false;
            }
        );
    };
    
    Editor.prototype._set_mode_for_model = function (model) {
        /** Set the CodeMirror mode based on the file model */

        // Find and load the highlighting mode,
        // first by mime-type, then by file extension

        var modeinfo;
        var ext = this._get_file_extension();
        if (ext) {
            // check if a mode has been remembered for this extension
            var modename = this.file_extension_modes[ext];
            if (modename) {
                modeinfo = CodeMirror.findModeByName(modename);
            }
        }
        // prioritize CodeMirror's filename identification
        if (!modeinfo || modeinfo.mode === "null") {
            modeinfo = CodeMirror.findModeByFileName(model.name);
            // codemirror's filename identification is case-sensitive.
            // try once more with lowercase extension
            if (!modeinfo && ext) {
                // CodeMirror wants lowercase ext without leading '.'
                modeinfo = CodeMirror.findModeByExtension(ext.slice(1).toLowerCase());
            }
        }
        if (model.mimetype && (!modeinfo || modeinfo.mode === "null")) {
            // mimetype is not set on file rename
            modeinfo = CodeMirror.findModeByMIME(model.mimetype);
        }
        if (modeinfo) {
            this.set_codemirror_mode(modeinfo);
        }
    };

    Editor.prototype.set_codemirror_mode = function (modeinfo) {
        /** set the codemirror mode from a modeinfo struct */
        var that = this;
        utils.requireCodeMirrorMode(modeinfo, function () {
            that.codemirror.setOption('mode', modeinfo.mime);
            that.events.trigger("mode_changed.Editor", modeinfo);
        }, function(err) {
            console.log('Error getting CodeMirror mode: ' + err);
        });
    };

    Editor.prototype.save_codemirror_mode = function (modeinfo) {
        /** save the selected codemirror mode for the current extension in config */
        var update_mode_map = {};
        var ext = this._get_file_extension();
        // no extension, nothing to save
        // TODO: allow remembering no-extension things like Makefile?
        if (!ext) return;

        update_mode_map[ext] = modeinfo.name;
        return this.config.update({
            Editor: {
                file_extension_modes: update_mode_map,
            }
        });
    };

    Editor.prototype.get_filename = function () {
        return utils.url_path_split(this.file_path)[1];
    };

    Editor.prototype._get_file_extension = function () {
        /** return file extension *including* . 
        
        Returns undefined if no extension is found.
        */
        var filename = this.get_filename();
        var ext_idx = filename.lastIndexOf('.');
        if (ext_idx < 0) {
            return;
        } else {
            return filename.slice(ext_idx);
        }
    };

    /**
     * Rename the file.
     * @param  {string} new_name
     * @return {Promise} promise that resolves when the file is renamed.
     */
    Editor.prototype.rename = function (new_name) {
        /** rename the file */
        var that = this;
        var parent = utils.url_path_split(this.file_path)[0];
        var new_path = utils.url_path_join(parent, new_name);
        return this.contents.rename(this.file_path, new_path).then(
            function (model) {
                that.file_path = model.path;
                that.events.trigger('file_renamed.Editor', model);
                that.last_modified = new Date(model.last_modified);
                that._set_mode_for_model(model);
                that._clean_state();
            }
        );
    };
    

    /**
     * Save this file on the server.
     *
     * @param {boolean} check_last_modified - checks if file has been modified on disk
     * @return {Promise} - promise that resolves when the notebook is saved.
     */
    Editor.prototype.save = function (check_last_modified) {
        /** save the file */
        if (!this.save_enabled) {
            console.log("Not saving, save disabled");
            return;
        }

        // used to check for last modified saves
        if (check_last_modified === undefined) {
            check_last_modified = true;
        }

        var model = {
            path: this.file_path,
            type: 'file',
            format: 'text',
            content: this.codemirror.getValue(),
        };
        var that = this;

        var _save = function () {
            that.events.trigger("file_saving.Editor");
            return that.contents.save(that.file_path, model).then(function(data) {
                // record change generation for isClean
                that.generation = that.codemirror.changeGeneration();
                that.events.trigger("file_saved.Editor", data);
                that.last_modified = new Date(data.last_modified);
                that._clean_state();
            });
        };

        /* 
         * Gets the current working file, and checks if the file has been modified on disk. If so, it
         * creates & opens a modal that issues the user a warning and prompts them to overwrite the file.
         * 
         * If it can't get the working file, it builds a new file and saves.
         */ 
        if (check_last_modified) {
            return this.contents.get(that.file_path, {content: false}).then(
                function check_if_modified(data) {
                    var last_modified = new Date(data.last_modified);
                    // We want to check last_modified (disk) > that.last_modified (our last save)
                    // In some cases the filesystem reports an inconsistent time,
                    // so we allow 0.5 seconds difference before complaining.
                    if ((last_modified.getTime() - that.last_modified.getTime()) > 500) {  // 500 ms
                        console.warn("Last saving was done on `"+that.last_modified+"`("+that._last_modified+"), "+
                                     "while the current file seem to have been saved on `"+data.last_modified+"`");
                        if (that._changed_on_disk_dialog !== null) {
                            // since the modal's event bindings are removed when destroyed, we reinstate
                            // save & reload callbacks on the confirmation & reload buttons
                            that._changed_on_disk_dialog.find('.save-confirm-btn').click(_save);
                            that._changed_on_disk_dialog.find('.btn-warning').click(function () {window.location.reload()});
                            
                            // redisplay existing dialog
                            that._changed_on_disk_dialog.modal('show');
                        } else {
                            // create new dialog
                            that._changed_on_disk_dialog = dialog.modal({
                                keyboard_manager: that.keyboard_manager,
                                title: i18n.msg._("File changed"),
                                body: i18n.msg._("The file has changed on disk since the last time we opened or saved it. "
                                        + "Do you want to overwrite the file on disk with the version open here, or load "
                                        + "the version on disk (reload the page)?"),
                                buttons: {
                                    Reload: {
                                        class: 'btn-warning',
                                        click: function () {
                                            window.location.reload();
                                        }
                                    },
                                    Cancel: {},
                                    Overwrite: {
                                        class: 'btn-danger save-confirm-btn',
                                        click: function () {
                                            _save();
                                        }
                                    },
                                }
                            });
                        }
                    } else {
                        return _save();
                    }
            }, function (error) {
                console.log(error);
                // maybe it has been deleted or renamed? Go ahead and save.
                return _save();
            })
        } else {
            return _save();
        }
    };

    Editor.prototype._clean_state = function(){
        var clean = this.codemirror.isClean(this.generation);
        if (clean === this.clean){
            return;
        } else {
            this.clean = clean;
        }
        if(clean){
            this.events.trigger("save_status_clean.Editor");
            this.clean_sel.attr('class','dirty-indicator-clean').attr('title','No changes to save');
        } else {
            this.events.trigger("save_status_dirty.Editor");
            this.clean_sel.attr('class','dirty-indicator-dirty').attr('title','Unsaved changes');
        }
    };

    Editor.prototype._set_codemirror_options = function (options) {
        // update codemirror options from a dict
        var codemirror = this.codemirror;
        $.map(options, function (value, opt) {
            if (value === null) {
                value = CodeMirror.defaults[opt];
            }
            codemirror.setOption(opt, value);
        });
        var that = this;
    };

    Editor.prototype.update_codemirror_options = function (options) {
        /** update codemirror options locally and save changes in config */
        var that = this;
        this._set_codemirror_options(options);
        return this.config.update({
            Editor: {
                codemirror_options: options
            }
        }).then(
            that.events.trigger('config_changed.Editor', {config: that.config})
        );
    };

    return {Editor: Editor};
});

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.

define('edit/js/menubar',[
    'jquery',
    'base/js/namespace',
    'base/js/utils',
    'base/js/dialog',
    'codemirror/lib/codemirror',
    'codemirror/mode/meta',
], function($, IPython, utils, dialog, CodeMirror) {
    "use strict";
    
    var MenuBar = function (selector, options) {
        /**
         * Constructor
         *
         * A MenuBar Class to generate the menubar of IPython notebook
         *
         * Parameters:
         *  selector: string
         *  options: dictionary
         *      Dictionary of keyword arguments.
         *          codemirror: CodeMirror instance
         *          contents: ContentManager instance
         *          events: $(Events) instance
         *          base_url : string
         *          file_path : string
         */
        options = options || {};
        this.base_url = options.base_url || utils.get_body_data("baseUrl");
        this.selector = selector;
        this.editor = options.editor;
        this.events = options.events;
        this.save_widget = options.save_widget;

        if (this.selector !== undefined) {
            this.element = $(selector);
            this.bind_events();
        }
        this._load_mode_menu();
        Object.seal(this);
    };

    MenuBar.prototype.bind_events = function () {
        var that = this;
        var editor = that.editor;
        
        //  File
        this.element.find('#new-file').click(function () {
            var w = window.open(undefined, IPython._target);
            // Create a new file in the current directory
            var parent = utils.url_path_split(editor.file_path)[0];
            editor.contents.new_untitled(parent, {type: "file"}).then(
                function (data) {
                    w.location = utils.url_path_join(
                        that.base_url, 'edit', utils.encode_uri_components(data.path)
                    );
                },
                function(error) {
                    w.close();
                    dialog.modal({
                        title : 'Creating New File Failed',
                        body : "The error was: " + error.message,
                        buttons : {'OK' : {'class' : 'btn-primary'}}
                    });
                }
            );
        });
        this.element.find('#save-file').click(function () {
            editor.save();
        });
        this.element.find('#rename-file').click(function () {
            that.save_widget.rename();
        });
        this.element.find('#download-file').click(function () {
            window.open(utils.url_path_join(
                that.base_url, 'files',
                utils.encode_uri_components(that.editor.file_path)
            ) + '?download=1');
        });
        
        // Edit
        this.element.find('#menu-find').click(function () {
            editor.codemirror.execCommand("find");
        });
        this.element.find('#menu-replace').click(function () {
            editor.codemirror.execCommand("replace");
        });
        this.element.find('#menu-keymap-default').click(function () {
            editor.update_codemirror_options({
                vimMode: false,
                keyMap: 'default'
            });
        });
        this.element.find('#menu-keymap-sublime').click(function () {
            editor.update_codemirror_options({
                vimMode: false,
                keyMap: 'sublime'
            });
        });
        this.element.find('#menu-keymap-emacs').click(function () {
            editor.update_codemirror_options({
                vimMode: false,
                keyMap: 'emacs'
            });
        });
        this.element.find('#menu-keymap-vim').click(function () {
            editor.update_codemirror_options({
                vimMode: true,
                keyMap: 'vim'
            });
        });
        
        // View

        this.element.find('#toggle_header').click(function (){
            $("#header-container").toggle();
        });
        
        this.element.find('#menu-line-numbers').click(function () {
            var current = editor.codemirror.getOption('lineNumbers');
            var value = Boolean(1-current);
            editor.update_codemirror_options({lineNumbers: value});
        });
        
        this.events.on("config_changed.Editor", function () {
            var keyMap = editor.codemirror.getOption('keyMap') || 'default';
            that.element.find(".selected-keymap").removeClass("selected-keymap");
            that.element.find("#menu-keymap-" + keyMap).addClass("selected-keymap");
        });
        
        this.events.on("mode_changed.Editor", function (evt, modeinfo) {
            that.element.find("#current-mode")
                .text(modeinfo.name)
                .attr(
                    'title',
                    "The current language is " + modeinfo.name
                );
        });
    };
    
    MenuBar.prototype._load_mode_menu = function () {
        var list = this.element.find("#mode-menu");
        var editor = this.editor;
        function make_set_mode(info) {
            return function () {
                editor.set_codemirror_mode(info);
                // save codemirror mode for extension when explicitly selected
                editor.save_codemirror_mode(info);
            };
        }
        for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
            var info = CodeMirror.modeInfo[i];
            list.append($("<li>").append(
                $("<a>").attr("href", "#")
                    .text(info.name)
                    .click(make_set_mode(info))
                    .attr('title',
                        "Set language to " + info.name
                    )
            ));
        }
    };

    return {'MenuBar': MenuBar};
});

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.
/**
 *
 *
 * @module keyboard
 * @namespace keyboard
 * @class ShortcutManager
 */

define('base/js/keyboard',[
    'jquery',
    'base/js/utils',
    'underscore',
], function($, utils, _) {
    "use strict";


    /**
     * Setup global keycodes and inverse keycodes.
     *
     * See http://unixpapa.com/js/key.html for a complete description. The short of
     * it is that there are different keycode sets. Firefox uses the "Mozilla keycodes"
     * and Webkit/IE use the "IE keycodes". These keycode sets are mostly the same
     * but have minor differences.
     **/

     // These apply to Firefox, (Webkit and IE)
     // This does work **only** on US keyboard.
    var _keycodes = {
        'a': 65, 'b': 66, 'c': 67, 'd': 68, 'e': 69, 'f': 70, 'g': 71, 'h': 72, 'i': 73,
        'j': 74, 'k': 75, 'l': 76, 'm': 77, 'n': 78, 'o': 79, 'p': 80, 'q': 81, 'r': 82,
        's': 83, 't': 84, 'u': 85, 'v': 86, 'w': 87, 'x': 88, 'y': 89, 'z': 90,
        '1 !': 49, '2 @': 50, '3 #': 51, '4 $': 52, '5 %': 53, '6 ^': 54,
        '7 &': 55, '8 *': 56, '9 (': 57, '0 )': 48, 
        '[ {': 219, '] }': 221, '` ~': 192,  ', <': 188, '. >': 190, '/ ?': 191,
        '\\ |': 220, '\' "': 222,
        'numpad0': 96, 'numpad1': 97, 'numpad2': 98, 'numpad3': 99, 'numpad4': 100,
        'numpad5': 101, 'numpad6': 102, 'numpad7': 103, 'numpad8': 104, 'numpad9': 105,
        'multiply': 106, 'add': 107, 'subtract': 109, 'decimal': 110, 'divide': 111,
        'f1': 112, 'f2': 113, 'f3': 114, 'f4': 115, 'f5': 116, 'f6': 117, 'f7': 118,
        'f8': 119, 'f9': 120, 'f10': 121, 'f11': 122, 'f12': 123, 'f13': 124, 'f14': 125, 'f15': 126,
        'backspace': 8, 'tab': 9, 'enter': 13, 'shift': 16, 'ctrl': 17, 'alt': 18,
        'meta': 91, 'capslock': 20, 'esc': 27, 'space': 32, 'pageup': 33, 'pagedown': 34,
        'end': 35, 'home': 36, 'left': 37, 'up': 38, 'right': 39, 'down': 40,
        'insert': 45, 'delete': 46, 'numlock': 144,
    };
    
    // These apply to Firefox and Opera
    var _mozilla_keycodes = {
        '; :': 59, '= +': 61, '- _': 173, 'meta': 224, 'minus':173
    };
    
    // This apply to Webkit and IE
    var _ie_keycodes = {
        '; :': 186, '= +': 187, '- _': 189, 'minus':189
    };
    
    var browser = utils.browser[0];
    var platform = utils.platform;
    
    if (browser === 'Firefox' || browser === 'Opera' || browser === 'Netscape') {
        $.extend(_keycodes, _mozilla_keycodes);
    } else if (browser === 'Safari' || browser === 'Chrome' || browser === 'MSIE') {
        $.extend(_keycodes, _ie_keycodes);
    }

    var keycodes = {};
    var inv_keycodes = {};
    for (var name in _keycodes) {
        var names = name.split(' ');
        if (names.length === 1) {
            var n = names[0];
            keycodes[n] = _keycodes[n];
            inv_keycodes[_keycodes[n]] = n;
        } else {
            var primary = names[0];
            var secondary = names[1];
            keycodes[primary] = _keycodes[name];
            keycodes[secondary] = _keycodes[name];
            inv_keycodes[_keycodes[name]] = primary;
        }
    }

    var normalize_key = function (key) {
        return inv_keycodes[keycodes[key]];
    };

    var normalize_shortcut = function (shortcut) {
        /**
         * @function _normalize_shortcut
         * @private
         * return a dict containing the normalized shortcut and the number of time it should be pressed:
         *
         * Put a shortcut into normalized form:
         * 1. Make lowercase
         * 2. Replace cmd by meta
         * 3. Sort '-' separated modifiers into the order alt-ctrl-meta-shift
         * 4. Normalize keys
         **/
        if (platform === 'MacOS') {
            shortcut = shortcut.toLowerCase().replace('cmdtrl-', 'cmd-');
        } else {
            shortcut = shortcut.toLowerCase().replace('cmdtrl-', 'ctrl-');
        }

        shortcut = shortcut.toLowerCase().replace('cmd', 'meta');
        shortcut = shortcut.replace(/-$/, 'minus');  // catch shortcuts using '-' key
        shortcut = shortcut.replace(/,$/, 'comma');  // catch shortcuts using '-' key
        if(shortcut.indexOf(',') !== -1){
            var sht = shortcut.split(',');
            sht = _.map(sht, normalize_shortcut);
            return shortcut;
        }
        shortcut = shortcut.replace(/comma/g, ',');  // catch shortcuts using '-' key
        var values = shortcut.split("-");
        if (values.length === 1) {
            return normalize_key(values[0]);
        } else {
            var modifiers = values.slice(0,-1);
            var key = normalize_key(values[values.length-1]);
            modifiers.sort();
            return modifiers.join('-') + '-' + key;
        }
    };

    var shortcut_to_event = function (shortcut, type) {
        /**
         * Convert a shortcut (shift-r) to a jQuery Event object
         **/
        type = type || 'keydown';
        shortcut = normalize_shortcut(shortcut);
        shortcut = shortcut.replace(/-$/, 'minus');  // catch shortcuts using '-' key
        var values = shortcut.split("-");
        var modifiers = values.slice(0,-1);
        var key = values[values.length-1];
        var opts = {which: keycodes[key]};
        if (modifiers.indexOf('alt') !== -1) {opts.altKey = true;}
        if (modifiers.indexOf('ctrl') !== -1) {opts.ctrlKey = true;}
        if (modifiers.indexOf('meta') !== -1) {opts.metaKey = true;}
        if (modifiers.indexOf('shift') !== -1) {opts.shiftKey = true;}
        return $.Event(type, opts);
    };

    var only_modifier_event = function(event){
        /**
         * Return `true` if the event only contains modifiers keys.
         * false otherwise
         **/
        var key = inv_keycodes[event.which];
        return ((event.altKey || event.ctrlKey || event.metaKey || event.shiftKey) &&
         (key === 'alt'|| key === 'ctrl'|| key === 'meta'|| key === 'shift'));

    };

    var event_to_shortcut = function (event) {
        /**
         * Convert a jQuery Event object to a normalized shortcut string (shift-r)
         **/
        var shortcut = '';
        var key = inv_keycodes[event.which];
        if (event.altKey && key !== 'alt') {shortcut += 'alt-';}
        if (event.ctrlKey && key !== 'ctrl') {shortcut += 'ctrl-';}
        if (event.metaKey && key !== 'meta') {shortcut += 'meta-';}
        if (event.shiftKey && key !== 'shift') {shortcut += 'shift-';}
        shortcut += key;
        return shortcut;
    };

    // Shortcut manager class

    var ShortcutManager = function (delay, events, actions, env, config, mode) {
        /**
         * A class to deal with keyboard event and shortcut
         *
         * @class ShortcutManager
         * @constructor
         *
         * :config: configobjet on which to call `update(....)` to persist the config.
         * :mode: mode of this shortcut manager where to persist config.
         */
        mode = mode || 'command';
        this._shortcuts = {};
        this._defaults_bindings = [];
        this.delay = delay || 800; // delay in milliseconds
        this.events = events;
        this.actions = actions;
        this.actions.extend_env(env);
        this._queue = [];
        this._cleartimeout = null;
        this._config = config;
        this._mode = mode;
        Object.seal(this);
    };

    ShortcutManager.prototype.clearsoon = function(){
        /**
         * Clear the pending shortcut soon, and cancel previous clearing
         * that might be registered.
         **/
         var that = this;
         clearTimeout(this._cleartimeout);
         this._cleartimeout = setTimeout(function(){that.clearqueue();}, this.delay);
    };


    ShortcutManager.prototype.clearqueue = function(){
        /**
         * clear the pending shortcut sequence now. 
         **/
        this._queue = [];
        clearTimeout(this._cleartimeout);
    };


    var flatten_shorttree = function(tree){
        /**
         * Flatten a tree of shortcut sequences. 
         * use full to iterate over all the key/values of available shortcuts.
         **/
        var dct = {};
        _.forEach(tree, function(value, key) {
            if(typeof(value) === 'string'){
                dct[key] = value;
            } else {
                var ftree=flatten_shorttree(value);
                _.forEach(ftree, function(v2, subkey) {
                    dct[key+','+subkey] = ftree[subkey];
                });
            } 
        });
        return dct;
    };


    ShortcutManager.prototype.get_action_shortcuts = function(name){
      var ftree = flatten_shorttree(this._shortcuts);
      var res = [];
      _.forEach(ftree, function(value, key) {
        if(value === name){
          res.push(key);
        }
      });
      return res;
    };
    
    ShortcutManager.prototype.get_action_shortcut = function(name){
      var matches = this.get_action_shortcuts(name);
      if (matches.length > 0) {
          return matches[0];
      }
      return undefined;
    };

    ShortcutManager.prototype.help = function () {
        var that = this;
        var help = [];
        var ftree = flatten_shorttree(this._shortcuts);
        _.forEach(ftree, function(value, key) {
            var action = that.actions.get(value);
            var help_string = action.help||'== no help ==';
            var help_index = action.help_index;
            if (help_string) {
                var shortstring = (action.shortstring||key);
                help.push({
                    shortcut: shortstring,
                    help: help_string,
                    help_index: help_index}
                );
            }
        });
        help.sort(function (a, b) {
            if (a.help_index === b.help_index) {
                if (a.shortcut === b.shortcut) {
                    return 0;
                }
                if (a.shortcut > b.shortcut) {
                    return 1;
                }
                return -1;
            }
            if (a.help_index === undefined || a.help_index > b.help_index){
                return 1;
            }
            return -1;
        });
        return help;
    };

    ShortcutManager.prototype.clear_shortcuts = function () {
        this._shortcuts = {};
    };

    ShortcutManager.prototype.get_shortcut = function (shortcut){
        /**
         * return a node of the shortcut tree which an action name (string) if leaf,
         * and an object with `object.subtree===true`
         **/
        if(typeof(shortcut) === 'string'){
            shortcut = shortcut.split(',');
        }
        
        return this._get_leaf(shortcut, this._shortcuts);
    };


    ShortcutManager.prototype._get_leaf = function(shortcut_array, tree){
        /**
         * @private
         * find a leaf/node in a subtree of the keyboard shortcut
         *
         **/
        if(shortcut_array.length === 1){
            return tree[shortcut_array[0]];
        } else if(  typeof(tree[shortcut_array[0]]) !== 'string'){
            return this._get_leaf(shortcut_array.slice(1), tree[shortcut_array[0]]);
        }
        return null;
    };

    ShortcutManager.prototype.set_shortcut = function( shortcut, action_name){
        if( typeof(action_name) !== 'string'){throw new Error('action is not a string', action_name);}
        if( typeof(shortcut) === 'string'){
            shortcut = shortcut.split(',');
        }
        return this._set_leaf(shortcut, action_name, this._shortcuts);
    };

    ShortcutManager.prototype._is_leaf = function(shortcut_array, tree){
        if(shortcut_array.length === 1){
           return(typeof(tree[shortcut_array[0]]) === 'string');
        } else {
            var subtree = tree[shortcut_array[0]];
            return this._is_leaf(shortcut_array.slice(1), subtree );
        }
    };

    ShortcutManager.prototype._remove_leaf = function(shortcut_array, tree, allow_node){
        if(shortcut_array.length === 1){
            var current_node = tree[shortcut_array[0]];
            if(typeof(current_node) === 'string'){
                delete tree[shortcut_array[0]];
            } else {
                throw new Error('try to delete non-leaf');
            }
        } else {
            this._remove_leaf(shortcut_array.slice(1),  tree[shortcut_array[0]], allow_node);
            if(_.keys(tree[shortcut_array[0]]).length === 0){
                delete tree[shortcut_array[0]];
            }
        }
    };

    ShortcutManager.prototype.is_available_shortcut = function(shortcut){
        var shortcut_array = shortcut.split(',');
        return this._is_available_shortcut(shortcut_array, this._shortcuts);
    };

    ShortcutManager.prototype._is_available_shortcut = function(shortcut_array, tree){
        var current_node = tree[shortcut_array[0]];
        if(!shortcut_array[0]){
            return false;
        }
        if(current_node === undefined){
            return true;
        } else {
            if (typeof(current_node) === 'string'){
                return false;
            } else { // assume is a sub-shortcut tree
                return this._is_available_shortcut(shortcut_array.slice(1), current_node);
            }
        }
    };

    ShortcutManager.prototype._set_leaf = function(shortcut_array, action_name, tree){
        var current_node = tree[shortcut_array[0]];

        if(shortcut_array.length === 1){
            if(current_node !== undefined && typeof(current_node) !== 'string'){
                console.warn('[warning], you are overriting a long shortcut with a shorter one');
            }
            tree[shortcut_array[0]] = action_name;
            return true;
        } else {
            if(typeof(current_node) === 'string'){
                console.warn('you are trying to set a shortcut that will be shadowed'+
                             'by a more specific one. Aborting for :', action_name, 'the following '+
                             'will take precedence', current_node);
                return false;
            } else {
                tree[shortcut_array[0]] = tree[shortcut_array[0]]||{};
            }
            this._set_leaf(shortcut_array.slice(1), action_name, tree[shortcut_array[0]]);
            return true;
        }
    };

    ShortcutManager.prototype._persist_shortcut = function(shortcut, data) {
        /**
         * add a shortcut to this manager and persist it to the config file. 
         **/ 
        shortcut = shortcut.toLowerCase();
        this.add_shortcut(shortcut, data);
        var patch = {keys:{}};
        patch.keys[this._mode] = {bind:{}};
        patch.keys[this._mode].bind[shortcut] = data;
        this._config.update(patch);
    };

    ShortcutManager.prototype._persist_remove_shortcut = function(shortcut){
        /**
         * Remove a shortcut from this manager and persist its removal.
         */

        shortcut = shortcut.toLowerCase();
        this.remove_shortcut(shortcut);
        var patch = {keys: {}};
        patch.keys[this._mode] = {bind:{}};
        patch.keys[this._mode].bind[shortcut] = null;
        this._config.update(patch);

        // if the shortcut we unbind is a default one, we add it to the list of
        // things to unbind at startup
        if( this._defaults_bindings.indexOf(shortcut) !== -1 ){
            var cnf = (this._config.data.keys || {})[this._mode];
            var unbind_array = cnf.unbind || [];


            // unless it's already there (like if we have remapped a default
            // shortcut to another command): unbind it)
            if(unbind_array.indexOf(shortcut) === -1){
                var _parray = unbind_array.concat(shortcut);
                var unbind_patch = {keys:{}};
                unbind_patch.keys[this._mode] = {unbind:_parray};
                console.warn('up:', unbind_patch);
                this._config.update(unbind_patch);
            }
        }
    };


    ShortcutManager.prototype.add_shortcut = function (shortcut, data, suppress_help_update) {
        /**
         * Add an action to be handled by shortcut manager. 
         * 
         * - `shortcut` should be a `Shortcut Sequence` of the for `Ctrl-Alt-C,Meta-X`...
         * - `data` could be an `action name`, an `action` or a `function`.
         *   if a `function` is passed it will be converted to an anonymous `action`. 
         *
         **/
        var action_name = this.actions.get_name(data);
        if (! action_name){
          if (typeof data === 'string') {
            // If we have an action name, allow it to be bound anyway.
            console.log("Unknown action '" + data + "' for shortcut " + shortcut
                + "; it may be defined by an extension which is not yet loaded.");
            action_name = data;
          } else {
            throw new Error('does not know how to deal with : ' + data);
          }
        }
        var _shortcut = normalize_shortcut(shortcut);
        this.set_shortcut(_shortcut, action_name);

        if (!suppress_help_update) {
            // update the keyboard shortcuts notebook help
            this.events.trigger('rebuild.QuickHelp');
        }
    };

    ShortcutManager.prototype.add_shortcuts = function (data) {
        /**
         * Convenient methods to call `add_shortcut(key, value)` on several items
         * 
         *  data : Dict of the form {key:value, ...}
         **/
        var that = this;
        _.forEach(data, function(value, key) {
            that.add_shortcut(key, value, true);
        });
        // update the keyboard shortcuts notebook help
        this.events.trigger('rebuild.QuickHelp');
    };

    ShortcutManager.prototype._add_default_shortcuts = function (data) {
        /**
         * same as add_shortcuts, but register them as "default" that if persistently unbound, with
         * persist_remove_shortcut, need to be on the "unbind" list. 
         **/
        this._defaults_bindings = this._defaults_bindings.concat(Object.keys(data));
        this.add_shortcuts(data);

    };

    ShortcutManager.prototype.remove_shortcut = function (shortcut, suppress_help_update) {
        /**
         * Remove the binding of shortcut `shortcut` with its action.
         * throw an error if trying to remove a non-exiting shortcut
         **/
        if(!shortcut){
            console.warn('trying to remove empty shortcut');
            return;
        }
        shortcut = normalize_shortcut(shortcut);
        if( typeof(shortcut) === 'string'){
            shortcut = shortcut.split(',');
        }
        /*
         *  The shortcut error should be explicit here, because it will be
         *  seen by users.
         */
        try {
          this._remove_leaf(shortcut, this._shortcuts);
          if (!suppress_help_update) {
            // update the keyboard shortcuts notebook help
            this.events.trigger('rebuild.QuickHelp');
          }
        } catch (ex) {
          throw new Error('trying to remove a non-existent shortcut', shortcut, typeof shortcut);
        }
    };



    ShortcutManager.prototype.call_handler = function (event) {
        /**
         * Call the corresponding shortcut handler for a keyboard event
         * @method call_handler
         * @return {Boolean} `true|false`, `false` if no handler was found, otherwise the  value return by the handler. 
         * @param event {event}
         *
         * given an event, call the corresponding shortcut. 
         * return false is event wan handled, true otherwise 
         * in any case returning false stop event propagation
         **/


        this.clearsoon();
        if(only_modifier_event(event)){
            return true;
        }
        var shortcut = event_to_shortcut(event);
        this._queue.push(shortcut);
        var action_name = this.get_shortcut(this._queue);

        if (typeof(action_name) === 'undefined'|| action_name === null){
            this.clearqueue();
            return true;
        }
        
        if (this.actions.exists(action_name)) {
            event.preventDefault();
            this.clearqueue();
            return this.actions.call(action_name, event);
        }

        return false;
    };


    ShortcutManager.prototype.handles = function (event) {
        var shortcut = event_to_shortcut(event);
        var action_name = this.get_shortcut(this._queue.concat(shortcut));
        return (typeof(action_name) !== 'undefined');
    };

    return {
        keycodes : keycodes,
        inv_keycodes : inv_keycodes,
        ShortcutManager : ShortcutManager,
        normalize_key : normalize_key,
        normalize_shortcut : normalize_shortcut,
        shortcut_to_event : shortcut_to_event,
        event_to_shortcut : event_to_shortcut,
    };
});

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.

define('bidi/numericshaping',[],
    function(bidi) {
    "use strict";
	
    var regex = /([0-9])|([\u0660-\u0669])|([\u0608\u060B\u060D\u061B-\u064A\u066D-\u066F\u0671-\u06D5\u06E5-\u06E6\u06EE-\u06EF\u06FA-\u06FF\u0750-\u077F\u08A0-\u08E3\u200F\u202B\u202E\u2067\uFB50-\uFD3D\uFD40-\uFDCF\uFDF0-\uFDFC\uFDFE-\uFDFF\uFE70-\uFEFE]+)|([^0-9\u0660-\u0669\u0608\u060B\u060D\u061B-\u064A\u066D-\u066F\u0671-\u06D5\u06E5-\u06E6\u06EE-\u06EF\u06FA-\u06FF\u0750-\u077F\u08A0-\u08E3\u200F\u202B\u202E\u2067\uFB50-\uFD3D\uFD40-\uFDCF\uFDF0-\uFDFC\uFDFE-\uFDFF\uFE70-\uFEFE\u0600-\u0607\u0609-\u060A\u060C\u060E-\u061A\u064B-\u066C\u0670\u06D6-\u06E4\u06E7-\u06ED\u06F0-\u06F9\u08E4-\u08FF\uFD3E-\uFD3F\uFDD0-\uFDEF\uFDFD\uFEFF\u0000-\u0040\u005B-\u0060\u007B-\u007F\u0080-\u00A9\u00AB-\u00B4\u00B6-\u00B9\u00BB-\u00BF\u00D7\u00F7\u02B9-\u02BA\u02C2-\u02CF\u02D2-\u02DF\u02E5-\u02ED\u02EF-\u02FF\u2070\u2074-\u207E\u2080-\u208E\u2100-\u2101\u2103-\u2106\u2108-\u2109\u2114\u2116-\u2118\u211E-\u2123\u2125\u2127\u2129\u212E\u213A-\u213B\u2140-\u2144\u214A-\u214D\u2150-\u215F\u2189\uA720-\uA721\uA788\uFF01-\uFF20\uFF3B-\uFF40\uFF5B-\uFF65\uFFE0-\uFFE6\uFFE8-\uFFEE]+)/g;
	
    var shape = function(text, shaperType) {
        text = text.toString();
        if (!text) { 
            return text;
        }
        switch (shaperType) {
            case "defaultNumeral":
                return _shapeEuropean(text);
            case "national":
                return _shapeArabic(text);
            default:
                return text;
        }
    };
    
    var _shapeEuropean = function(text) {
        return text.replace(/[\u0660-\u0669]/g, function(c) {
            return c.charCodeAt(0) - 1632;
        });
    };

    var _shapeArabic = function(text) {
        return text.replace(/[0-9]/g, function(c) {
            return String.fromCharCode(parseInt(c) + 1632);
        });
    };
   
    var numericshaping = {
        shapeNumerals : shape
    };
           
    return numericshaping;       
});

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.

define('bidi/bidi',['bidi/numericshaping'], function(numericshaping) {
  'use strict';

  var shaperType = '';

  var _uiLang = function() {
    return navigator.language.toLowerCase();
  };

  var _loadLocale = function() {
    if (_isMirroringEnabled()) {
      document.body.dir = 'rtl';
    }

    requirejs(['moment'], function (moment) {
      console.log('Loaded moment locale', moment.locale(_uiLang()));
    });

    shaperType = _uiLang().split('-')[0] == 'ar' ? 'national' : 'defaultNumeral';
  };

  var _isMirroringEnabled = function() {
    return new RegExp('^(ar|ara|arc|ae|ave|egy|he|heb|nqo|pal|phn|sam|syc|syr|fa|per|fas|ckb|ur|urd)').test(_uiLang());
  };

  /**
     * @param value : the string to apply the bidi-support on it.
     * @param flag :indicates the type of bidi-support (Numeric-shaping ,Base-text-dir ).
     */
  var _applyBidi = function(value /*, flag*/) {
    value = numericshaping.shapeNumerals(value, shaperType);
    return value;
  };

  var bidi = {
    applyBidi: _applyBidi,
    isMirroringEnabled: _isMirroringEnabled,
    loadLocale: _loadLocale,
  };

  return bidi;
});

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.

define('edit/js/savewidget',[
    'jquery',
    'base/js/utils',
    'base/js/dialog',
    'base/js/keyboard',
    'moment',
    'bidi/bidi',
], function($, utils, dialog, keyboard, moment, bidi) {
    "use strict";
    
    var SaveWidget = function (selector, options) {
        this.editor = undefined;
        this.selector = selector;
        this.events = options.events;
        this.editor = options.editor;
        this._last_modified = undefined;
        this._filename = undefined;
        this.keyboard_manager = options.keyboard_manager;
        if (this.selector !== undefined) {
            this.element = $(selector);
            this.bind_events();
        }
    };


    SaveWidget.prototype.bind_events = function () {
        var that = this;
        this.element.find('span.filename').click(function () {
            that.rename();
        });
        this.events.on('save_status_clean.Editor', function (evt) {
            that.update_document_title();
        });
        this.events.on('save_status_dirty.Editor', function (evt) {
            that.update_document_title(undefined, true);
        });
        this.events.on('file_loaded.Editor', function (evt, model) {
            that.update_filename(model.name);
            that.update_document_title(model.name);
            that.update_last_modified(model.last_modified);
        });
        this.events.on('file_saved.Editor', function (evt, model) {
            that.update_filename(model.name);
            that.update_document_title(model.name);
            that.update_last_modified(model.last_modified);
        });
        this.events.on('file_renamed.Editor', function (evt, model) {
            that.update_filename(model.name);
            that.update_document_title(model.name);
            that.update_address_bar(model.path);
        });
        this.events.on('file_save_failed.Editor', function () {
            that.set_save_status('Save Failed!');
        });
    };


    SaveWidget.prototype.rename = function (options) {
        options = options || {};
        var that = this;
        var dialog_body = $('<div/>').append(
            $("<p/>").addClass("rename-message")
                .text('Enter a new filename:')
        ).append(
            $("<br/>")
        ).append(
            $('<input/>').attr('type','text').attr('size','25').addClass('form-control')
            .val(that.editor.get_filename())
        );
        var d = dialog.modal({
            title: "Rename File",
            body: dialog_body,
            default_button: "Cancel",
            buttons : {
                "Cancel": {},
                "OK": {
                    class: "btn-primary",
                    click: function () {
                        var new_name = d.find('input').val();
                        if (!new_name) {
                            // Reset the message
                            d.find('.rename-message').text("Enter a new filename:");
                            return false;
                        }
                        d.find('.rename-message').text("Renaming...");
                        d.find('input[type="text"]').prop('disabled', true);
                        that.editor.rename(new_name).then(
                            function () {
                                d.modal('hide');
                            }, function (error) {
                                d.find('.rename-message').text(error.message || 'Unknown error');
                                d.find('input[type="text"]').prop('disabled', false).focus().select();
                            }
                        );
                        return false;
                    }
                }
            },
            open : function () {
                // Upon ENTER, click the OK button.
                d.find('input[type="text"]').keydown(function (event) {
                    if (event.which === keyboard.keycodes.enter) {
                        d.find('.btn-primary').first().click();
                        return false;
                    }
                });
                d.find('input[type="text"]').focus().select();
            }
        });
    };


    SaveWidget.prototype.update_filename = function (filename) {
    	filename = bidi.applyBidi(filename);
        this.element.find('span.filename').text(filename);
    };

    SaveWidget.prototype.update_document_title = function (filename, dirty) {
        if(filename){
            this._filename = filename;
        }
        document.title = (dirty ? '*' : '') + this._filename + ' - Jupyter Text Editor';
    };

    SaveWidget.prototype.update_address_bar = function (path) {
        var state = {path : path};
        window.history.replaceState(state, "", utils.url_path_join(
            this.editor.base_url,
            "edit",
            utils.encode_uri_components(path)
        ));
    };

    SaveWidget.prototype.update_last_modified = function (last_modified) {
        if (last_modified) {
            this._last_modified = new Date(last_modified);
        } else {
            this._last_modified = null;
        }
        this._render_last_modified();
    };
    
    SaveWidget.prototype._render_last_modified = function () {
        /** actually set the text in the element, from our _last_modified value
        
        called directly, and periodically in timeouts.
        */
        this._schedule_render_last_modified();
        var el = this.element.find('span.last_modified');
        if (!this._last_modified) {
            el.text('').attr('title', 'never saved');
            return;
	 }
        var chkd = moment(this._last_modified);
        var long_date = chkd.format('llll');
        var human_date;
        var tdelta = Math.ceil(new Date() - this._last_modified);
        if (tdelta < utils.time.milliseconds.d){
            // less than 24 hours old, use relative date
            human_date = chkd.fromNow();
        } else {
            // otherwise show calendar
            // <Today | yesterday|...> at hh,mm,ss
            human_date = chkd.calendar();
        }
        el.text(human_date).attr('title', long_date);
    };
    
    SaveWidget.prototype._schedule_render_last_modified = function () {
        /** schedule the next update to relative date
        
        periodically updated, so short values like 'a few seconds ago' don't get stale.
        */
        if (!this._last_modified) {
            return;
        }
        if ((this._last_modified_timeout)) {
            clearTimeout(this._last_modified_timeout);
        }
        var dt = Math.ceil(new Date() - this._last_modified);
        this._last_modified_timeout = setTimeout(
            $.proxy(this._render_last_modified, this),
            utils.time.timeout_from_dt(dt)
        );
    };

    return {'SaveWidget': SaveWidget};

});

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.

define('base/js/notificationwidget',['jquery'], function($) {
    "use strict";

    /**
     * Construct a NotificationWidget object.
     *
     * @constructor
     * @param {string} selector - a jQuery selector string for the
     * notification widget element
     */
    var NotificationWidget = function (selector) {
        this.selector = selector;
        this.timeout = null;
        this.busy = false;
        if (this.selector !== undefined) {
            this.element = $(selector);
            this.style();
        }
        this.element.hide();
        this.inner = $('<span/>');
        this.element.append(this.inner);
    };

    /**
     * Add the 'notification_widget' CSS class to the widget element.
     *
     * @method style
     */
    NotificationWidget.prototype.style = function () {
        // use explicit bootstrap classes here,
        // because multiple inheritance in LESS doesn't work
        // for this particular combination
        this.element.addClass('notification_widget btn btn-xs navbar-btn');
    };
   
    /**
     * hide the widget and empty the text
     **/
    NotificationWidget.prototype.hide = function () {
        var that = this;
        this.element.fadeOut(100, function(){that.inner.text('');});
    };

    /**
     * Set the notification widget message to display for a certain
     * amount of time (timeout).  The widget will be shown forever if
     * timeout is <= 0 or undefined. If the widget is clicked while it
     * is still displayed, execute an optional callback
     * (click_callback). If the callback returns false, it will
     * prevent the notification from being dismissed.
     *
     * Options:
     *    class - CSS class name for styling
     *    icon - CSS class name for the widget icon
     *    title - HTML title attribute for the widget
     *
     * @method set_message
     * @param {string} msg - The notification to display
     * @param {integer} [timeout] - The amount of time in milliseconds to display the widget
     * @param {function} [click_callback] - The function to run when the widget is clicked
     * @param {Object} [options] - Additional options
     */
    NotificationWidget.prototype.set_message = function (msg, timeout, click_callback, options) {
        options = options || {};

        // unbind potential previous callback
        this.element.unbind('click');
        this.inner.attr('class', options.icon);
        this.inner.attr('title', options.title);
        this.inner.text(msg);
        this.element.fadeIn(100);

        // reset previous set style
        this.element.removeClass();
        this.style();
        if (options.class) {
            this.element.addClass(options.class);
        }

        // clear previous timer
        if (this.timeout !== null) {
            clearTimeout(this.timeout);
            this.timeout = null;
        }

        // set the timer if a timeout is given
        var that = this;
        if (timeout !== undefined && timeout >= 0) {
            this.timeout = setTimeout(function () {
                that.element.fadeOut(100, function () {that.inner.text('');});
                that.element.unbind('click');
                that.timeout = null;
            }, timeout);
        }

        // if no click callback assume we will just dismiss the notification
        if (click_callback === undefined) {
            click_callback = function(){return true};
        }
        // on click, remove widget if click callback say so
        // and unbind click event.
        this.element.click(function () {
            if (click_callback() !== false) {
                that.element.fadeOut(100, function () {that.inner.text('');});
                that.element.unbind('click');
            }
            if (that.timeout !== null) {
                clearTimeout(that.timeout);
                that.timeout = null;
            }
        });
    };

    /**
     * Display an information message (styled with the 'info'
     * class). Arguments are the same as in set_message. Default
     * timeout is 3500 milliseconds.
     *
     * @method info
     */
    NotificationWidget.prototype.info = function (msg, timeout, click_callback, options) {
        options = options || {};
        options.class = options.class + ' info';
        timeout = timeout || 3500;
        this.set_message(msg, timeout, click_callback, options);
    };

    /**
     * Display a warning message (styled with the 'warning'
     * class). Arguments are the same as in set_message. Messages are
     * sticky by default.
     *
     * @method warning
     */
    NotificationWidget.prototype.warning = function (msg, timeout, click_callback, options) {
        options = options || {};
        options.class = options.class + ' warning';
        this.set_message(msg, timeout, click_callback, options);
    };

    /**
     * Display a danger message (styled with the 'danger'
     * class). Arguments are the same as in set_message. Messages are
     * sticky by default.
     *
     * @method danger
     */
    NotificationWidget.prototype.danger = function (msg, timeout, click_callback, options) {
        options = options || {};
        options.class = options.class + ' danger';
        this.set_message(msg, timeout, click_callback, options);
    };

    /**
     * Get the text of the widget message.
     *
     * @method get_message
     * @return {string} - the message text
     */
    NotificationWidget.prototype.get_message = function () {
        return this.inner.html();
    };

    return {'NotificationWidget': NotificationWidget};
});

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.

define('base/js/notificationarea',[
    'jquery',
    'base/js/notificationwidget',
], function($, notificationwidget) {
    "use strict";

    // store reference to the NotificationWidget class
    var NotificationWidget = notificationwidget.NotificationWidget;

    /**
     * Construct the NotificationArea object. Options are:
     *     events: $(Events) instance
     *     save_widget: SaveWidget instance
     *     notebook: Notebook instance
     *     keyboard_manager: KeyboardManager instance
     *
     * @constructor
     * @param {string} selector - a jQuery selector string for the
     * notification area element
     * @param {Object} [options] - a dictionary of keyword arguments.
     */
    var NotificationArea = function (selector, options) {
        this.selector = selector;
        this.events = options.events;
        if (this.selector !== undefined) {
            this.element = $(selector);
        }
        this.widget_dict = {};
    };

    /**
     * Get a widget by name, creating it if it doesn't exist.
     *
     * @method widget
     * @param {string} name - the widget name
     */
    NotificationArea.prototype.widget = function (name) {
        if (this.widget_dict[name] === undefined) {
            return this.new_notification_widget(name);
        }
        return this.get_widget(name);
    };

    /**
     * Get a widget by name, throwing an error if it doesn't exist.
     *
     * @method get_widget
     * @param {string} name - the widget name
     */
    NotificationArea.prototype.get_widget = function (name) {
        if(this.widget_dict[name] === undefined) {
            throw new Error('no widgets with this name');
        }
        return this.widget_dict[name];
    };

    /**
     * Create a new notification widget with the given name. The
     * widget must not already exist.
     *
     * @method new_notification_widget
     * @param {string} name - the widget name
     */
    NotificationArea.prototype.new_notification_widget = function (name) {
        if (this.widget_dict[name] !== undefined) {
            throw new Error('widget with that name already exists!');
        }

        // create the element for the notification widget and add it
        // to the notification aread element
        var div = $('<div/>').attr('id', 'notification_' + name);
        $(this.selector).append(div);

        // create the widget object and return it
        this.widget_dict[name] = new NotificationWidget('#notification_' + name);
        return this.widget_dict[name];
    };

    return {'NotificationArea': NotificationArea};
});

define('edit/js/notificationarea',[
    'base/js/notificationarea'
], function(notificationarea) {
    "use strict";
    var NotificationArea = notificationarea.NotificationArea;
    
    var EditorNotificationArea = function(selector, options) {
        NotificationArea.apply(this, [selector, options]);
    }
    
    EditorNotificationArea.prototype = Object.create(NotificationArea.prototype);
    
    /**
     * Initialize the default set of notification widgets.
     *
     * @method init_notification_widgets
     */
    EditorNotificationArea.prototype.init_notification_widgets = function () {
        var that = this;
        var savew = this.new_notification_widget('save');
        
        this.events.on("file_saved.Editor", function() {
            savew.set_message("File saved", 2000);
        });
    };
    

    return {EditorNotificationArea: EditorNotificationArea};
});

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.

define('auth/js/loginwidget',[
    'jquery',
    'base/js/utils',
], function($, utils){
    "use strict";

    var LoginWidget = function (selector, options) {
        options = options || {};
        this.base_url = options.base_url || utils.get_body_data("baseUrl");
        this.selector = selector;
        if (this.selector !== undefined) {
            this.element = $(selector);
            this.bind_events();
        }
    };


    LoginWidget.prototype.bind_events = function () {
        var that = this;
        this.element.find("button#logout").click(function () {
            window.location = utils.url_path_join(
                that.base_url,
                "logout"
            );
        });
        this.element.find("button#login").click(function () {
            window.location = utils.url_path_join(
                that.base_url,
                "login"
            );
        });
    };

    return {'LoginWidget': LoginWidget};
});

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.

requirejs([
    'jquery',
    'contents',
    'base/js/namespace',
    'base/js/utils',
    'base/js/page',
    'base/js/events',
    'services/config',
    'edit/js/editor',
    'edit/js/menubar',
    'edit/js/savewidget',
    'edit/js/notificationarea',
    'bidi/bidi',
    'auth/js/loginwidget', 
], function(
    $,
    contents_service,
    IPython,
    utils,
    page,
    events,
    configmod,
    editmod,
    menubar,
    savewidget,
    notificationarea,
    bidi,
    loginwidget,
    ){
    "use strict";

    try {
        requirejs(['custom/custom'], function() {});
        bidi.loadLocale();
    } catch(err) {
        console.log("Error loading custom.js from edition service. Continuing and logging");
        console.warn(err);
    }
    
    page = new page.Page('div#header', 'div#site');

    var base_url = utils.get_body_data('baseUrl');
    var file_path = utils.get_body_data('filePath');
    // This enables logout
    var login_widget = new loginwidget.LoginWidget('#login_widget', {
        base_url: base_url
    });
    var config = new configmod.ConfigSection('edit', {base_url: base_url});
    config.load();
    var common_config = new configmod.ConfigSection('common', {base_url: base_url});
    common_config.load();
    var contents = new contents_service.Contents({
        base_url: base_url,
        common_config: common_config
    });
    
    var editor = new editmod.Editor('#texteditor-container', {
        base_url: base_url,
        events: events,
        contents: contents,
        file_path: file_path,
        config: config,
    });
    
    // Make it available for debugging
    IPython.editor = editor;
    
    var save_widget = new savewidget.SaveWidget('span#save_widget', {
        editor: editor,
        events: events,
    });
    
    var menus = new menubar.MenuBar('#menubar', {
        base_url: base_url,
        editor: editor,
        events: events,
        save_widget: save_widget,
    });
    
    var notification_area = new notificationarea.EditorNotificationArea(
        '#notification_area', {
        events: events,
    });
    editor.notification_area = notification_area;
    notification_area.init_notification_widgets();

    utils.load_extensions_from_config(config);
    utils.load_extensions_from_config(common_config);
    editor.load();
    page.show();

    window.onbeforeunload = function () {
        if (editor.save_enabled && !editor.codemirror.isClean(editor.generation)) {
            return "Unsaved changes will be lost. Close anyway?";
        }
    };

    // Make sure the codemirror editor is sized appropriately.
    var _handle_resize = function() {
        var backdrop = $("#texteditor-backdrop");

        // account for padding on the backdrop wrapper
        var padding = backdrop.outerHeight(true) - backdrop.height();
        $('div.CodeMirror').height($("#site").height() - padding);
    };
    $(window).resize(_handle_resize);

    // On document ready, resize codemirror.
    $(document).ready(_handle_resize);
});

define("edit/js/main", function(){});


//# sourceMappingURL=main.min.js.map