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Batuhan Berk Başoğlu 2020-11-12 11:05:57 -05:00
parent f584ad9d97
commit 2e81cb7d99
16627 changed files with 2065359 additions and 102444 deletions
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89
venv/Lib/site-packages/notebook/static/components/MathJax/extensions/a11y/accessibility-menu.js vendored Normal file
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!function(i, e) {
var s, u, a = i.config.menuSettings, t = Function.prototype.bind ? function(e, t) {
return e.bind(t);
} : function(e, t) {
return function() {
e.apply(t, arguments);
};
}, o = Object.keys || function(e) {
var t = [];
for (var n in e) e.hasOwnProperty(n) && t.push(n);
return t;
}, n = MathJax.Ajax.config.path;
n.a11y || (n.a11y = i.config.root + "/extensions/a11y");
var l = e["accessibility-menu"] = {
version: "1.6.0",
prefix: "",
defaults: {},
modules: [],
MakeOption: function(e) {
return l.prefix + e;
},
GetOption: function(e) {
return a[l.MakeOption(e)];
},
AddDefaults: function() {
for (var e, t = o(l.defaults), n = 0; e = t[n]; n++) {
var i = l.MakeOption(e);
void 0 === a[i] && (a[i] = l.defaults[e]);
}
},
AddMenu: function() {
for (var e, t = Array(this.modules.length), n = 0; e = this.modules[n]; n++) t[n] = e.placeHolder;
var i, a, o = u.FindId("Accessibility");
o ? (t.unshift(s.RULE()), o.submenu.items.push.apply(o.submenu.items, t)) : ((i = (u.FindId("Settings", "Renderer") || {}).submenu) && (t.unshift(s.RULE()),
t.unshift(i.items.pop()), t.unshift(i.items.pop())), t.unshift("Accessibility"),
o = s.SUBMENU.apply(s.SUBMENU, t), (a = u.IndexOfId("Locale")) ? u.items.splice(a, 0, o) : u.items.push(s.RULE(), o));
},
Register: function(e) {
l.defaults[e.option] = !1, l.modules.push(e);
},
Startup: function() {
s = MathJax.Menu.ITEM, u = MathJax.Menu.menu;
for (var e, t = 0; e = this.modules[t]; t++) e.CreateMenu();
this.AddMenu();
},
LoadExtensions: function() {
for (var e, t = [], n = 0; e = this.modules[n]; n++) a[e.option] && t.push(e.module);
return t.length ? i.Startup.loadArray(t) : null;
}
}, r = MathJax.Extension.ModuleLoader = MathJax.Object.Subclass({
option: "",
name: [ "", "" ],
module: "",
placeHolder: null,
submenu: !1,
extension: null,
Init: function(e, t, n, i, a) {
this.option = e, this.name = [ t.replace(/ /g, ""), t ], this.module = n, this.extension = i,
this.submenu = a || !1;
},
CreateMenu: function() {
var e = t(this.Load, this);
this.submenu ? this.placeHolder = s.SUBMENU(this.name, s.CHECKBOX([ "Activate", "Activate" ], l.MakeOption(this.option), {
action: e
}), s.RULE(), s.COMMAND([ "OptionsWhenActive", "(Options when Active)" ], null, {
disabled: !0
})) : this.placeHolder = s.CHECKBOX(this.name, l.MakeOption(this.option), {
action: e
});
},
Load: function() {
i.Queue([ "Require", MathJax.Ajax, this.module, [ "Enable", this ] ]);
},
Enable: function(e) {
var t = MathJax.Extension[this.extension];
t && (t.Enable(!0, !0), MathJax.Menu.saveCookie());
}
});
l.Register(r("collapsible", "Collapsible Math", "[a11y]/collapsible.js", "collapsible")),
l.Register(r("autocollapse", "Auto Collapse", "[a11y]/auto-collapse.js", "auto-collapse")),
l.Register(r("explorer", "Explorer", "[a11y]/explorer.js", "explorer", !0)), l.AddDefaults(),
i.Register.StartupHook("End Extensions", function() {
i.Register.StartupHook("MathMenu Ready", function() {
l.Startup(), i.Startup.signal.Post("Accessibility Menu Ready");
}, 5);
}, 5), MathJax.Hub.Register.StartupHook("End Cookie", function() {
MathJax.Callback.Queue([ "LoadExtensions", l ], [ "loadComplete", MathJax.Ajax, "[a11y]/accessibility-menu.js" ]);
});
}(MathJax.Hub, MathJax.Extension);

251
venv/Lib/site-packages/notebook/static/components/MathJax/extensions/a11y/auto-collapse.js vendored Normal file
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!function(c) {
var s = c.config.menuSettings, r = {}, t = MathJax.Ajax.config.path;
t.a11y || (t.a11y = c.config.root + "/extensions/a11y");
var l = MathJax.Extension["auto-collapse"] = {
version: "1.6.0",
config: c.CombineConfig("auto-collapse", {
disabled: !1
}),
dependents: [],
Enable: function(t, e) {
s.autocollapse = !0, e && (r.autocollapse = !0), this.config.disabled = !1, MathJax.Extension.collapsible.Enable(!1, e),
t && c.Queue([ "Reprocess", c ], [ "CollapseWideMath", this ]);
},
Disable: function(t, e) {
s.autocollapse = !1, e && (r.autocollapse = !1), this.config.disabled = !0;
for (var n = this.dependents.length - 1; 0 <= n; n--) {
var o = this.dependents[n];
o.Disable && o.Disable(!1, e);
}
t && c.Queue([ "Rerender", c ]);
},
Dependent: function(t) {
this.dependents.push(t);
},
Startup: function() {
var t = MathJax.Extension.collapsible;
t && t.Dependent(this), c.postInputHooks.Add([ "Filter", l ], 150), c.Queue(function() {
return l.CollapseWideMath();
}), window.addEventListener ? window.addEventListener("resize", l.resizeHandler, !1) : window.attachEvent ? window.attachEvent("onresize", l.resizeHandler) : window.onresize = l.resizeHandler;
},
Filter: function(t, e, n) {
t.enriched && !this.config.disabled && ("block" === t.root.Get("display") || n.parentNode.childNodes.length <= 3) && (t.root.SRE = {
action: this.Actions(t.root)
});
},
Actions: function(t) {
var e = [];
return this.getActions(t, 0, e), this.sortActions(e);
},
getActions: function(t, e, n) {
if (!t.isToken && t.data) {
e++;
for (var o, i = 0, a = t.data.length; i < a; i++) {
t.data[i] && ((o = t.data[i]).collapsible ? (n[e] || (n[e] = []), n[e].push(o),
this.getActions(o.data[1], e, n)) : this.getActions(o, e, n));
}
}
},
sortActions: function(t) {
for (var e = [], n = 0, o = t.length; n < o; n++) t[n] && (e = e.concat(t[n].sort(this.sortActionsBy)));
return e;
},
sortActionsBy: function(t, e) {
return (t = t.data[1].complexity) < (e = e.data[1].complexity) ? -1 : e < t ? 1 : 0;
},
CollapseWideMath: function(t) {
if (!this.config.disabled) {
this.GetContainerWidths(t);
var e = c.getAllJax(t), n = {
collapse: [],
jax: e,
m: e.length,
i: 0,
changed: !1
};
return this.collapseState(n);
}
},
collapseState: function(t) {
for (var e = t.collapse; t.i < t.m; ) {
var n = t.jax[t.i], o = n.root.SRE;
if (t.changed = !1, o && o.action.length && (o.cwidth < o.m || o.cwidth > o.M)) {
var i = this.getActionWidths(n, t);
if (i) return i;
this.collapseActions(o, t), t.changed && e.push(n.SourceElement());
}
t.i++;
}
if (0 !== e.length) return 1 === e.length && (e = e[0]), c.Rerender(e);
},
collapseActions: function(t, e) {
for (var n = t.width, o = n, i = 1e6, a = t.action.length - 1; 0 <= a; a--) {
var s = t.action[a], r = s.selection;
n > t.cwidth ? (s.selection = 1, o = s.SREwidth, i = n) : s.selection = 2, n = s.SREwidth,
t.DOMupdate ? document.getElementById(s.id).setAttribute("selection", s.selection) : s.selection !== r && (e.changed = !0);
}
t.m = o, t.M = i;
},
getActionWidths: function(t, e) {
if (!t.root.SRE.actionWidths) {
MathJax.OutputJax[t.outputJax].getMetrics(t);
try {
this.computeActionWidths(t);
} catch (t) {
if (!t.restart) throw t;
return MathJax.Callback.After([ "collapseState", this, e ], t.restart);
}
e.changed = !0;
}
return null;
},
computeActionWidths: function(t) {
var e, n = t.root.SRE, o = n.action, i = {};
for (n.width = t.sreGetRootWidth(i), e = o.length - 1; 0 <= e; e--) o[e].selection = 2;
for (e = o.length - 1; 0 <= e; e--) {
var a = o[e];
null == a.SREwidth && (a.selection = 1, a.SREwidth = t.sreGetActionWidth(i, a));
}
n.actionWidths = !0;
},
GetContainerWidths: function(t) {
for (var e, n, o, i = c.getAllJax(t), a = MathJax.HTML.Element("span", {
style: {
display: "block"
}
}), s = [], r = 0, l = i.length; r < l; r++) o = (n = i[r]).root, SRE = o.SRE, SRE && SRE.action.length && (null == SRE.width && (n.sreGetMetrics(),
SRE.m = SRE.width, SRE.M = 1e6), (e = n.SourceElement()).previousSibling.style.display = "none",
e.parentNode.insertBefore(a.cloneNode(!1), e), s.push([ n, e ]));
for (r = 0, l = s.length; r < l; r++) n = s[r][0], (e = s[r][1]).previousSibling.offsetWidth && (n.root.SRE.cwidth = e.previousSibling.offsetWidth * n.root.SRE.em);
for (r = 0, l = s.length; r < l; r++) n = s[r][0], (e = s[r][1]).parentNode.removeChild(e.previousSibling),
e.previousSibling.style.display = "";
},
timer: null,
running: !1,
retry: !1,
saved_delay: 0,
resizeHandler: function(t) {
l.config.disabled || (l.running ? l.retry = !0 : (l.timer && clearTimeout(l.timer),
l.timer = setTimeout(l.resizeAction, 100)));
},
resizeAction: function() {
l.timer = null, l.running = !0, c.Queue(function() {
l.saved_delay = c.processSectionDelay, c.processSectionDelay = 0;
}, [ "CollapseWideMath", l ], [ "resizeCheck", l ]);
},
resizeCheck: function() {
l.running = !1, c.processSectionDelay = l.saved_delay, l.retry && (l.retry = !1,
setTimeout(l.resizeHandler, 0));
}
};
c.Register.StartupHook("End Extensions", function() {
null == s.autocollapse ? s.autocollapse = !l.config.disabled : l.config.disabled = !s.autocollapse,
c.Register.StartupHook("MathMenu Ready", function() {
r = MathJax.Menu.cookie;
var t, e = MathJax.Menu.ITEM, n = MathJax.Menu.menu, o = e.CHECKBOX([ "AutoCollapse", "Auto Collapse" ], "autocollapse", {
action: function(t) {
l[s.autocollapse ? "Enable" : "Disable"](!0, !0), MathJax.Menu.saveCookie();
}
}), i = (n.FindId("Accessibility") || {}).submenu;
i ? null !== (t = i.IndexOfId("AutoCollapse")) ? i.items[t] = o : (t = i.IndexOfId("CollapsibleMath"),
i.items.splice(t + 1, 0, o)) : (t = n.IndexOfId("CollapsibleMath"), n.items.splice(t + 1, 0, o));
function a() {
l[s.autocollapse ? "Enable" : "Disable"]();
}
MathJax.Extension.collapse ? a() : MathJax.Hub.Register.StartupHook("Auto Collapse Ready", a);
}, 25);
}, 25);
}(MathJax.Hub), MathJax.ElementJax.Augment({
sreGetMetrics: function() {
MathJax.OutputJax[this.outputJax].sreGetMetrics(this, this.root.SRE);
},
sreGetRootWidth: function(t) {
return MathJax.OutputJax[this.outputJax].sreGetRootWidth(this, t);
},
sreGetActionWidth: function(t, e) {
return MathJax.OutputJax[this.outputJax].sreGetActionWidth(this, t, e);
}
}), MathJax.OutputJax.Augment({
getMetrics: function() {},
sreGetMetrics: function(t, e) {
e.cwidth = 1e6, e.width = 0, e.em = 12;
},
sreGetRootWidth: function(t, e) {
return 0;
},
sreGetActionWidth: function(t, e, n) {
return 0;
}
}), MathJax.Hub.Register.StartupHook("HTML-CSS Jax Ready", function() {
MathJax.OutputJax["HTML-CSS"].Augment({
sreGetMetrics: function(t, e) {
e.width = t.root.data[0].HTMLspanElement().parentNode.bbox.w, e.em = 1 / t.HTMLCSS.em / t.HTMLCSS.scale;
},
sreGetRootWidth: function(t, e) {
var n = t.root.data[0].HTMLspanElement();
return e.box = n.parentNode, e.box.bbox.w;
},
sreGetActionWidth: function(t, e, n) {
return t.root.data[0].toHTML(e.box).bbox.w;
}
});
}), MathJax.Hub.Register.StartupHook("SVG Jax Ready", function() {
MathJax.OutputJax.SVG.Augment({
getMetrics: function(t) {
this.em = MathJax.ElementJax.mml.mbase.prototype.em = t.SVG.em, this.ex = t.SVG.ex,
this.linebreakWidth = t.SVG.lineWidth, this.cwidth = t.SVG.cwidth;
},
sreGetMetrics: function(t, e) {
e.width = t.root.SVGdata.w / 1e3, e.em = 1 / t.SVG.em;
},
sreGetRootWidth: function(t, e) {
return e.span = document.getElementById(t.inputID + "-Frame"), t.root.SVGdata.w / 1e3;
},
sreGetActionWidth: function(t, e, n) {
this.mathDiv = e.span, e.span.appendChild(this.textSVG);
try {
t.root.data[0].toSVG();
} catch (t) {
var o = t;
}
if (e.span.removeChild(this.textSVG), o) throw o;
return t.root.data[0].SVGdata.w / 1e3;
}
});
}), MathJax.Hub.Register.StartupHook("CommonHTML Jax Ready", function() {
MathJax.OutputJax.CommonHTML.Augment({
sreGetMetrics: function(t, e) {
e.width = t.root.CHTML.w, e.em = 1 / t.CHTML.em / t.CHTML.scale;
},
sreGetRootWidth: function(t, e) {
return e.span = document.getElementById(t.inputID + "-Frame").firstChild, e.tmp = document.createElement("span"),
e.tmp.className = e.span.className, t.root.CHTML.w / t.CHTML.scale;
},
sreGetActionWidth: function(t, e, n) {
e.span.parentNode.replaceChild(e.tmp, e.span), MathJax.OutputJax.CommonHTML.CHTMLnode = e.tmp;
try {
t.root.data[0].toCommonHTML(e.tmp);
} catch (t) {
var o = t;
}
if (e.tmp.parentNode.replaceChild(e.span, e.tmp), o) throw o;
return t.root.data[0].CHTML.w / t.CHTML.scale;
}
});
}), MathJax.Hub.Register.StartupHook("NativeMML Jax Ready", function() {
MathJax.OutputJax.NativeMML.Augment({
sreGetMetrics: function(t, e) {
var n = document.getElementById(t.inputID + "-Frame");
e.width = n.offsetWidth, e.em = 1, e.DOMupdate = !0;
},
sreGetRootWidth: function(t, e) {
return e.span = document.getElementById(t.inputID + "-Frame").firstChild, e.span.offsetWidth;
},
sreGetActionWidth: function(t, e, n) {
return document.getElementById(n.id).setAttribute("selection", 1), e.span.offsetWidth;
}
});
}), MathJax.Ajax.Require("[a11y]/collapsible.js"), MathJax.Hub.Register.StartupHook("Collapsible Ready", function() {
MathJax.Extension["auto-collapse"].Startup(), MathJax.Hub.Startup.signal.Post("Auto Collapse Ready"),
MathJax.Ajax.loadComplete("[a11y]/auto-collapse.js");
});

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venv/Lib/site-packages/notebook/static/components/MathJax/extensions/a11y/collapsible.js vendored Normal file
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!function(s) {
var n, l = s.config.menuSettings, o = {}, r = "data-semantic-complexity", t = MathJax.Ajax.config.path;
t.a11y || (t.a11y = s.config.root + "/extensions/a11y");
var h = MathJax.Extension.collapsible = {
version: "1.6.0",
config: s.CombineConfig("collapsible", {
disabled: !1
}),
dependents: [],
COMPLEXATTR: r,
COMPLEXITY: {
TEXT: .5,
TOKEN: .5,
CHILD: 1,
SCRIPT: .8,
SQRT: 2,
SUBSUP: 2,
UNDEROVER: 2,
FRACTION: 2,
ACTION: 2,
PHANTOM: 0,
XML: 2,
GLYPH: 2
},
COLLAPSE: {
identifier: 3,
number: 3,
text: 10,
infixop: 15,
relseq: 15,
multirel: 15,
fenced: 18,
bigop: 20,
integral: 20,
fraction: 12,
sqrt: 9,
root: 12,
vector: 15,
matrix: 15,
cases: 15,
superscript: 9,
subscript: 9,
subsup: 9,
punctuated: {
endpunct: 1e7,
startpunct: 1e7,
value: 12
}
},
MARKER: {
identifier: "x",
number: "#",
text: "...",
appl: {
"limit function": "lim",
value: "f()"
},
fraction: "/",
sqrt: "\u221a",
root: "\u221a",
superscript: "\u25fd\u02d9",
subscript: "\u25fd.",
subsup: "\u25fd:",
vector: {
binomial: "(:)",
determinant: "|:|",
value: "\u27e8:\u27e9"
},
matrix: {
squarematrix: "[::]",
rowvector: "\u27e8\u22ef\u27e9",
columnvector: "\u27e8\u22ee\u27e9",
determinant: "|::|",
value: "(::)"
},
cases: "{:",
infixop: {
addition: "+",
subtraction: "\u2212",
multiplication: "\u22c5",
implicit: "\u22c5",
value: "+"
},
punctuated: {
text: "...",
value: ","
}
},
Enable: function(t, i) {
l.collapsible = !0, i && (o.collapsible = !0), this.config.disabled = !1, MathJax.Extension["semantic-enrich"].Enable(!1, i),
t && s.Queue([ "Reprocess", s ]);
},
Disable: function(t, i) {
l.collapsible = !1, i && (o.collapsible = !1), this.config.disabled = !0;
for (var e = this.dependents.length - 1; 0 <= e; e--) {
var a = this.dependents[e];
a.Disable && a.Disable(!1, i);
}
t && s.Queue([ "Reprocess", s ]);
},
Dependent: function(t) {
this.dependents.push(t);
},
Startup: function() {
n = MathJax.ElementJax.mml;
var t = MathJax.Extension["semantic-enrich"];
t && t.Dependent(this), s.postInputHooks.Add([ "Filter", h ], 100);
},
Filter: function(t, i, e) {
t.enriched && !this.config.disabled && (t.root = t.root.Collapse(), t.root.inputID = e.id);
},
Marker: function(t) {
return n.mtext("\u25c2" + t + "\u25b8").With({
mathcolor: "blue",
attr: {},
attrNames: []
});
},
MakeAction: function(t, i) {
var e = n.maction(t).With({
id: this.getActionID(),
actiontype: "toggle",
complexity: t.getComplexity(),
collapsible: !0,
attrNames: [ "id", "actiontype", "selection", r ],
attr: {},
selection: 2
});
if (e.attr[r] = e.complexity, "math" === i.type) {
var a = n.mrow().With({
complexity: i.complexity,
attrNames: [],
attr: {}
});
a.Append.apply(a, i.data[0].data), i.data[0].data = [];
for (var s, l = i.attrNames.length - 1; s = i.attrNames[l]; l--) "data-semantic-" === s.substr(0, 14) && (a.attr[s] = i.attr[s],
a.attrNames.push(s), delete i.attr[s], i.attrNames.splice(l, 1));
a.complexity = i.complexity, e.Append(a), i.Append(e), i.complexity = e.complexity,
e = i;
} else e.Append(i);
return e;
},
actionID: 1,
getActionID: function() {
return "MJX-Collapse-" + this.actionID++;
},
Collapse: function(t) {
t.getComplexity();
var i, e, a, s = (t.attr || {})["data-semantic-type"];
return s && (this["Collapse_" + s] ? t = this["Collapse_" + s](t) : this.COLLAPSE[s] && this.MARKER[s] && (i = t.attr["data-semantic-role"],
"number" != typeof (e = this.COLLAPSE[s]) && (e = e[i] || e.value), t.complexity > e && ("string" != typeof (a = this.MARKER[s]) && (a = a[i] || a.value),
t = this.MakeAction(this.Marker(a), t)))), t;
},
UncollapseChild: function(t, i, e) {
if (null == e && (e = 1), this.SplitAttribute(t, "children").length === e) {
var a = 1 === t.data.length && t.data[0].inferred ? t.data[0] : t;
if (a && a.data[i] && a.data[i].collapsible) return a.SetData(i, a.data[i].data[1]),
t.complexity = a.complexity = null, t.getComplexity(), 1;
}
return 0;
},
FindChildText: function(t, i) {
var e = this.FindChild(t, i);
return e ? (e.CoreMO() || e).data.join("") : "?";
},
FindChild: function(t, i) {
if (t) {
if (t.attr && t.attr["data-semantic-id"] === i) return t;
if (!t.isToken) for (var e = 0, a = t.data.length; e < a; e++) {
var s = this.FindChild(t.data[e], i);
if (s) return s;
}
}
return null;
},
SplitAttribute: function(t, i) {
return (t.attr["data-semantic-" + i] || "").split(/,/);
},
Collapse_fenced: function(t) {
var i;
return this.UncollapseChild(t, 1), t.complexity > this.COLLAPSE.fenced && "leftright" === t.attr["data-semantic-role"] && (i = t.data[0].data.join("") + t.data[t.data.length - 1].data.join(""),
t = this.MakeAction(this.Marker(i), t)), t;
},
Collapse_appl: function(t) {
var i;
return this.UncollapseChild(t, 2, 2) && (i = (i = this.MARKER.appl)[t.attr["data-semantic-role"]] || i.value,
t = this.MakeAction(this.Marker(i), t)), t;
},
Collapse_sqrt: function(t) {
return this.UncollapseChild(t, 0), t.complexity > this.COLLAPSE.sqrt && (t = this.MakeAction(this.Marker(this.MARKER.sqrt), t)),
t;
},
Collapse_root: function(t) {
return this.UncollapseChild(t, 0), t.complexity > this.COLLAPSE.sqrt && (t = this.MakeAction(this.Marker(this.MARKER.sqrt), t)),
t;
},
Collapse_enclose: function(t) {
var i, e;
return 1 !== this.SplitAttribute(t, "children").length || (i = 1 === t.data.length && t.data[0].inferred ? t.data[0] : t).data[0] && i.data[0].collapsible && (e = i.data[0],
i.SetData(0, e.data[1]), e.SetData(1, t), t = e), t;
},
Collapse_bigop: function(t) {
var i, e;
return (t.complexity > this.COLLAPSE.bigop || "mo" !== t.data[0].type) && (i = this.SplitAttribute(t, "content").pop(),
e = h.FindChildText(t, i), t = this.MakeAction(this.Marker(e), t)), t;
},
Collapse_integral: function(t) {
var i, e;
return (t.complexity > this.COLLAPSE.integral || "mo" !== t.data[0].type) && (i = this.SplitAttribute(t, "content")[0],
e = h.FindChildText(t, i), t = this.MakeAction(this.Marker(e), t)), t;
},
Collapse_relseq: function(t) {
var i, e;
return t.complexity > this.COLLAPSE.relseq && (i = this.SplitAttribute(t, "content"),
e = h.FindChildText(t, i[0]), 1 < i.length && (e += "\u22ef"), t = this.MakeAction(this.Marker(e), t)),
t;
},
Collapse_multirel: function(t) {
var i, e;
return t.complexity > this.COLLAPSE.multirel && (i = this.SplitAttribute(t, "content"),
e = h.FindChildText(t, i[0]) + "\u22ef", t = this.MakeAction(this.Marker(e), t)),
t;
},
Collapse_superscript: function(t) {
return this.UncollapseChild(t, 0, 2), t.complexity > this.COLLAPSE.superscript && (t = this.MakeAction(this.Marker(this.MARKER.superscript), t)),
t;
},
Collapse_subscript: function(t) {
return this.UncollapseChild(t, 0, 2), t.complexity > this.COLLAPSE.subscript && (t = this.MakeAction(this.Marker(this.MARKER.subscript), t)),
t;
},
Collapse_subsup: function(t) {
return this.UncollapseChild(t, 0, 3), t.complexity > this.COLLAPSE.subsup && (t = this.MakeAction(this.Marker(this.MARKER.subsup), t)),
t;
}
};
s.Register.StartupHook("End Extensions", function() {
null == l.collapsible ? l.collapsible = !h.config.disabled : h.config.disabled = !l.collapsible,
s.Register.StartupHook("MathMenu Ready", function() {
o = MathJax.Menu.cookie;
var t, i = MathJax.Menu.ITEM, e = MathJax.Menu.menu, a = i.CHECKBOX([ "CollapsibleMath", "Collapsible Math" ], "collapsible", {
action: function(t) {
h[l.collapsible ? "Enable" : "Disable"](!0, !0), MathJax.Menu.saveCookie();
}
}), s = (e.FindId("Accessibility") || {}).submenu;
s ? null !== (t = s.IndexOfId("CollapsibleMath")) ? s.items[t] = a : s.items.push(i.RULE(), a) : (t = e.IndexOfId("About"),
e.items.splice(t, 0, a, i.RULE()));
}, 15);
}, 15);
}(MathJax.Hub), MathJax.Ajax.Require("[a11y]/semantic-enrich.js"), MathJax.Hub.Register.StartupHook("Semantic Enrich Ready", function() {
var t = MathJax.ElementJax.mml, i = MathJax.Extension.collapsible, a = i.COMPLEXITY, s = i.COMPLEXATTR;
i.Startup(), t.mbase.Augment({
Collapse: function() {
return i.Collapse(this);
},
getComplexity: function() {
if (null == this.complexity) {
var t = 0;
if (this.isToken) t = a.TEXT * this.data.join("").length + a.TOKEN; else {
for (var i = 0, e = this.data.length; i < e; i++) this.data[i] && (this.SetData(i, this.data[i].Collapse()),
t += this.data[i].complexity);
1 < e && (t += e * a.CHILD);
}
!this.attrNames || "complexity" in this || this.attrNames.push(s), this.attr && (this.attr[s] = t),
this.complexity = t;
}
return this.complexity;
},
reportComplexity: function() {
!this.attr || !this.attrNames || s in this.attr || (this.attrNames.push(s), this.attr[s] = this.complexity);
}
}), t.mfrac.Augment({
getComplexity: function() {
return null == this.complexity && (this.SUPER(arguments).getComplexity.call(this),
this.complexity *= a.SCRIPT, this.complexity += a.FRACTION, this.attr[s] = this.complexity),
this.complexity;
}
}), t.msqrt.Augment({
getComplexity: function() {
return null == this.complexity && (this.SUPER(arguments).getComplexity.call(this),
this.complexity += a.SQRT, this.attr[s] = this.complexity), this.complexity;
}
}), t.mroot.Augment({
getComplexity: function() {
return null == this.complexity && (this.SUPER(arguments).getComplexity.call(this),
this.complexity -= (1 - a.SCRIPT) * this.data[1].getComplexity(), this.complexity += a.SQRT,
this.attr[s] = this.complexity), this.complexity;
}
}), t.msubsup.Augment({
getComplexity: function() {
var t;
return null == this.complexity && (t = 0, this.data[this.sub] && (t = this.data[this.sub].getComplexity() + a.CHILD),
this.data[this.sup] && (t = Math.max(this.data[this.sup].getComplexity(), t)), t *= a.SCRIPT,
this.data[this.sub] && (t += a.CHILD), this.data[this.sup] && (t += a.CHILD), this.data[this.base] && (t += this.data[this.base].getComplexity() + a.CHILD),
this.complexity = t + a.SUBSUP, this.reportComplexity()), this.complexity;
}
}), t.munderover.Augment({
getComplexity: function() {
var t;
return null == this.complexity && (t = 0, this.data[this.sub] && (t = this.data[this.sub].getComplexity() + a.CHILD),
this.data[this.sup] && (t = Math.max(this.data[this.sup].getComplexity(), t)), t *= a.SCRIPT,
this.data[this.base] && (t = Math.max(this.data[this.base].getComplexity(), t)),
this.data[this.sub] && (t += a.CHILD), this.data[this.sup] && (t += a.CHILD), this.data[this.base] && (t += a.CHILD),
this.complexity = t + a.UNDEROVER, this.reportComplexity()), this.complexity;
}
}), t.mphantom.Augment({
getComplexity: function() {
return this.complexity = a.PHANTOM, this.reportComplexity(), this.complexity;
}
}), t.ms.Augment({
getComplexity: function() {
return this.SUPER(arguments).getComplexity.call(this), this.complexity += this.Get("lquote").length * a.TEXT,
this.complexity += this.Get("rquote").length * a.TEXT, this.attr[s] = this.complexity,
this.complexity;
}
}), t.menclose.Augment({
getComplexity: function() {
return null == this.complexity && (this.SUPER(arguments).getComplexity.call(this),
this.complexity += a.ACTION, this.attr[s] = this.complexity), this.complexity;
}
}), t.maction.Augment({
getComplexity: function() {
return this.complexity = (this.collapsible ? this.data[0] : this.selected()).getComplexity(),
this.reportComplexity(), this.complexity;
}
}), t.semantics.Augment({
getComplexity: function() {
return null == this.complexity && (this.complexity = this.data[0] ? this.data[0].getComplexity() : 0,
this.reportComplexity()), this.complexity;
}
}), t["annotation-xml"].Augment({
getComplexity: function() {
return this.complexity = a.XML, this.reportComplexity(), this.complexity;
}
}), t.annotation.Augment({
getComplexity: function() {
return this.complexity = a.XML, this.reportComplexity(), this.complexity;
}
}), t.mglyph.Augment({
getComplexity: function() {
return this.complexity = a.GLYPH, this.reportComplexity(), this.complexity;
}
}), MathJax.Hub.Startup.signal.Post("Collapsible Ready"), MathJax.Ajax.loadComplete("[a11y]/collapsible.js");
});

417
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MathJax.Hub.Register.StartupHook("Sre Ready", function() {
var o, r, s = MathJax.Hub.config.menuSettings, l = {};
MathJax.Hub.Register.StartupHook("MathEvents Ready", function() {
o = MathJax.Extension.MathEvents.Event.False, r = MathJax.Extension.MathEvents.Event.KEY;
});
var h = MathJax.Extension.explorer = {
version: "1.6.0",
dependents: [],
defaults: {
walker: "table",
highlight: "none",
background: "blue",
foreground: "black",
speech: !0,
generation: "lazy",
subtitle: !1,
ruleset: "mathspeak-default"
},
eagerComplexity: 80,
prefix: "Assistive-",
hook: null,
locHook: null,
oldrules: null,
addMenuOption: function(e, t) {
s[h.prefix + e] = t;
},
addDefaults: function() {
for (var e, t = MathJax.Hub.CombineConfig("explorer", h.defaults), a = Object.keys(t), i = 0; e = a[i]; i++) void 0 === s[h.prefix + e] && h.addMenuOption(e, t[e]);
h.setSpeechOption(), u.Reset();
},
setOption: function(e, t) {
s[h.prefix + e] !== t && (h.addMenuOption(e, t), u.Reset());
},
getOption: function(e) {
return s[h.prefix + e];
},
speechOption: function(e) {
h.oldrules !== e.value && (h.setSpeechOption(), u.Regenerate());
},
setSpeechOption: function() {
var e = s[h.prefix + "ruleset"], t = e.split("-");
sre.System.getInstance().setupEngine({
locale: MathJax.Localization.locale,
domain: h.Domain(t[0]),
style: t[1]
}), h.oldrules = e;
},
Domain: function(e) {
switch (e) {
case "chromevox":
return "default";
case "clearspeak":
return "clearspeak";
case "mathspeak":
default:
return "mathspeak";
}
},
Enable: function(e, t) {
s.explorer = !0, t && (l.explorer = !0), MathJax.Extension.collapsible.Enable(!1, t),
MathJax.Extension.AssistiveMML && (MathJax.Extension.AssistiveMML.config.disabled = !0,
s.assistiveMML = !1, t && (l.assistiveMML = !1)), this.DisableMenus(!1), this.hook || (this.hook = MathJax.Hub.Register.MessageHook("New Math", [ "Register", this.Explorer ])),
this.locHook || (this.locHook = MathJax.Hub.Register.MessageHook("Locale Reset", [ "RemoveSpeech", this.Explorer ])),
e && MathJax.Hub.Queue([ "Reprocess", MathJax.Hub ]);
},
Disable: function(e, t) {
s.explorer = !1, t && (l.explorer = !1), this.DisableMenus(!0), this.hook && (MathJax.Hub.UnRegister.MessageHook(this.hook),
this.hook = null);
for (var a = this.dependents.length - 1; 0 <= a; a--) {
var i = this.dependents[a];
i.Disable && i.Disable(!1, t);
}
},
DisableMenus: function(e) {
if (MathJax.Menu) {
var t = MathJax.Menu.menu.FindId("Accessibility", "Explorer");
if (t) {
for (var a, i = (t = t.submenu).items, n = 2; a = i[n]; n++) a.disabled = e;
e || !t.FindId("SpeechOutput") || s[h.prefix + "speech"] || (t.FindId("Subtitles").disabled = !0);
}
}
},
Dependent: function(e) {
this.dependents.push(e);
}
}, n = MathJax.Object.Subclass({
div: null,
inner: null,
Init: function() {
this.div = n.Create("assertive"), this.inner = MathJax.HTML.addElement(this.div, "div");
},
Add: function() {
n.added || (document.body.appendChild(this.div), n.added = !0);
},
Show: function(e, t) {
this.div.classList.add("MJX_LiveRegion_Show");
var a = e.getBoundingClientRect(), i = a.bottom + 10 + window.pageYOffset, n = a.left + window.pageXOffset;
this.div.style.top = i + "px", this.div.style.left = n + "px";
var o = t.colorString();
this.inner.style.backgroundColor = o.background, this.inner.style.color = o.foreground;
},
Hide: function(e) {
this.div.classList.remove("MJX_LiveRegion_Show");
},
Clear: function() {
this.Update(""), this.inner.style.top = "", this.inner.style.backgroundColor = "";
},
Update: function(e) {
h.getOption("speech") && n.Update(this.inner, e);
}
}, {
ANNOUNCE: "Navigatable Math in page. Explore with enter or shift space and arrow keys. Expand or collapse elements hitting enter.",
announced: !1,
added: !1,
styles: {
".MJX_LiveRegion": {
position: "absolute",
top: "0",
height: "1px",
width: "1px",
padding: "1px",
overflow: "hidden"
},
".MJX_LiveRegion_Show": {
top: "0",
position: "absolute",
width: "auto",
height: "auto",
padding: "0px 0px",
opacity: 1,
"z-index": "202",
left: 0,
right: 0,
margin: "0 auto",
"background-color": "white",
"box-shadow": "0px 10px 20px #888",
border: "2px solid #CCCCCC"
}
},
Create: function(e) {
var t = MathJax.HTML.Element("div", {
className: "MJX_LiveRegion"
});
return t.setAttribute("aria-live", e), t;
},
Update: MathJax.Hub.Browser.isPC ? function(e, t) {
e.textContent = "", setTimeout(function() {
e.textContent = t;
}, 100);
} : function(e, t) {
e.textContent = "", e.textContent = t;
},
Announce: function() {
var e;
h.getOption("speech") && (n.announced = !0, MathJax.Ajax.Styles(n.styles), e = n.Create("polite"),
document.body.appendChild(e), n.Update(e, n.ANNOUNCE), setTimeout(function() {
document.body.removeChild(e);
}, 1e3));
}
});
MathJax.Extension.explorer.LiveRegion = n;
var e = MathJax.Ajax.fileURL(MathJax.Ajax.config.path.a11y), u = MathJax.Extension.explorer.Explorer = {
liveRegion: n(),
walker: null,
highlighter: null,
hoverer: null,
flamer: null,
speechDiv: null,
earconFile: e + "/invalid_keypress" + (-1 !== [ "Firefox", "Chrome", "Opera" ].indexOf(MathJax.Hub.Browser.name) ? ".ogg" : ".mp3"),
expanded: !1,
focusoutEvent: MathJax.Hub.Browser.isFirefox ? "blur" : "focusout",
focusinEvent: "focus",
ignoreFocusOut: !1,
jaxCache: {},
messageID: null,
Reset: function() {
u.FlameEnriched();
},
Register: function(e) {
var t, a;
!h.hook || (t = document.getElementById(e[1])) && t.id && ((a = MathJax.Hub.getJaxFor(t.id)) && a.enriched && (u.StateChange(t.id, a),
u.liveRegion.Add(), u.AddEvent(t)));
},
StateChange: function(e, t) {
u.GetHighlighter(.2);
var a = u.jaxCache[e];
a && a === t.root || (a && sre.Walker.resetState(e + "-Frame"), u.jaxCache[e] = t.root);
},
AddAria: function(e) {
e.setAttribute("role", "application"), e.setAttribute("aria-label", "Math");
},
AddHook: function(i) {
u.RemoveHook(), u.hook = MathJax.Hub.Register.MessageHook("End Math", function(e) {
var t = e[1].id + "-Frame", a = document.getElementById(t);
i && t === u.expanded && (u.ActivateWalker(a, i), a.focus(), u.expanded = !1);
});
},
RemoveHook: function() {
u.hook && (MathJax.Hub.UnRegister.MessageHook(u.hook), u.hook = null);
},
AddMessage: function() {
return MathJax.Message.Set("Generating Speech Output");
},
RemoveMessage: function(e) {
e && MathJax.Message.Clear(e);
},
AddEvent: function(e) {
var t, a = e.id + "-Frame", i = e.previousSibling;
i && (t = i.id !== a ? i.firstElementChild : i, u.AddAria(t), u.AddMouseEvents(t),
"MathJax_MathML" === t.className && (t = t.firstElementChild), t && (t.onkeydown = u.Keydown,
u.Flame(t), t.addEventListener(u.focusinEvent, function(e) {
h.hook && (n.announced || n.Announce());
}), t.addEventListener(u.focusoutEvent, function(e) {
h.hook && (u.ignoreFocusOut && (u.ignoreFocusOut = !1, "enter" === u.walker.moved) ? e.target.focus() : u.walker && u.DeactivateWalker());
}), h.getOption("speech") && u.AddSpeech(t)));
},
AddSpeech: function(e) {
var t = e.id, a = MathJax.Hub.getJaxFor(t).root.toMathML();
if (e.getAttribute("haslabel") || u.AddMathLabel(a, t), !e.getAttribute("hasspeech")) switch (MathJax.Hub.config.explorer.generation) {
case "eager":
u.AddSpeechEager(a, t);
break;
case "mixed":
e.querySelectorAll("[data-semantic-complexity]").length >= h.eagerComplexity && u.AddSpeechEager(a, t);
}
},
AddSpeechLazy: function(e) {
var t = new sre.TreeSpeechGenerator();
t.setRebuilt(u.walker.getRebuilt()), t.getSpeech(u.walker.rootNode, u.walker.getXml()),
e.setAttribute("hasspeech", "true");
},
AddSpeechEager: function(e, t) {
u.MakeSpeechTask(e, t, sre.TreeSpeechGenerator, function(e, t) {
e.setAttribute("hasspeech", "true");
}, 5);
},
AddMathLabel: function(e, t) {
u.MakeSpeechTask(e, t, sre.SummarySpeechGenerator, function(e, t) {
e.setAttribute("haslabel", "true"), e.setAttribute("aria-label", t);
}, 5);
},
MakeSpeechTask: function(i, n, o, r, e) {
var s = u.AddMessage();
setTimeout(function() {
var e = new o(), t = document.getElementById(n), a = new sre.DummyWalker(t, e, u.highlighter, i).speech();
a && r(t, a), u.RemoveMessage(s);
}, e);
},
Keydown: function(e) {
var t = e.keyCode;
if (t === r.ESCAPE) {
if (!u.walker) return;
return u.RemoveHook(), u.DeactivateWalker(), void o(e);
}
if (u.walker && u.walker.isActive()) {
t = t === r.RETURN ? r.DASH : t, void 0 !== u.walker.modifier && (u.walker.modifier = e.shiftKey);
var a = u.walker.move(t);
if (null === a) return;
if (a) {
if ("expand" === u.walker.moved) {
if (u.expanded = u.walker.node.id, MathJax.Hub.Browser.isEdge) return u.ignoreFocusOut = !0,
void u.DeactivateWalker();
if (MathJax.Hub.Browser.isFirefox || MathJax.Hub.Browser.isMSIE) return void u.DeactivateWalker();
}
u.liveRegion.Update(u.walker.speech()), u.Highlight();
} else u.PlayEarcon();
o(e);
} else {
var i = e.target;
if (t === r.SPACE && !e.shiftKey) return MathJax.Extension.MathEvents.Event.ContextMenu(e, i),
void o(e);
if (h.hook && (t === r.RETURN || t === r.SPACE && e.shiftKey)) {
var n = MathJax.Hub.getJaxFor(i);
return u.ActivateWalker(i, n), u.AddHook(n), void o(e);
}
}
},
GetHighlighter: function(e) {
u.highlighter = sre.HighlighterFactory.highlighter({
color: h.getOption("background"),
alpha: e
}, {
color: h.getOption("foreground"),
alpha: 1
}, {
renderer: MathJax.Hub.outputJax["jax/mml"][0].id,
browser: MathJax.Hub.Browser.name
});
},
AddMouseEvents: function(e) {
sre.HighlighterFactory.addEvents(e, {
mouseover: u.MouseOver,
mouseout: u.MouseOut
}, {
renderer: MathJax.Hub.outputJax["jax/mml"][0].id,
browser: MathJax.Hub.Browser.name
});
},
MouseOver: function(e) {
var t;
"none" !== h.getOption("highlight") && ("hover" === h.getOption("highlight") && (t = e.currentTarget,
u.GetHighlighter(.1), u.highlighter.highlight([ t ]), u.hoverer = !0), o(e));
},
MouseOut: function(e) {
return u.hoverer && (u.highlighter.unhighlight(), u.hoverer = !1), o(e);
},
Flame: function(e) {
if ("flame" === h.getOption("highlight")) return u.GetHighlighter(.05), u.highlighter.highlightAll(e),
void (u.flamer = !0);
},
UnFlame: function() {
u.flamer && (u.highlighter.unhighlightAll(), u.flamer = null);
},
FlameEnriched: function() {
u.UnFlame();
for (var e, t = 0, a = MathJax.Hub.getAllJax(); e = a[t]; t++) u.Flame(e.SourceElement().previousSibling);
},
Walkers: {
syntactic: sre.SyntaxWalker,
table: sre.TableWalker,
semantic: sre.SemanticWalker,
none: sre.DummyWalker
},
ActivateWalker: function(e, t) {
var a = h.getOption("speech"), i = h.getOption("walker") ? u.Walkers[MathJax.Hub.config.explorer.walker] : u.Walkers.none, n = a ? new sre.DirectSpeechGenerator() : new sre.DummySpeechGenerator(), o = sre.System.getInstance().engineSetup();
n.setOptions({
locale: o.locale,
domain: o.domain,
style: o.style,
modality: "speech"
}), u.GetHighlighter(.2), u.walker = new i(e, n, u.highlighter, t.root.toMathML()),
a && !e.getAttribute("hasspeech") && u.AddSpeechLazy(e), u.walker.activate(), a && (h.getOption("subtitle") && u.liveRegion.Show(e, u.highlighter),
u.liveRegion.Update(u.walker.speech())), u.Highlight(), u.ignoreFocusOut && setTimeout(function() {
u.ignoreFocusOut = !1;
}, 500);
},
DeactivateWalker: function() {
var e = sre.System.getInstance().engineSetup(), t = "clearspeak" === e.domain ? "default" : e.style;
h.setOption("ruleset", e.domain + "-" + t), u.liveRegion.Clear(), u.liveRegion.Hide(),
u.Unhighlight(), u.currentHighlight = null, u.walker.deactivate(), u.walker = null;
},
Highlight: function() {
u.Unhighlight(), u.highlighter.highlight(u.walker.getFocus().getNodes());
},
Unhighlight: function() {
u.highlighter.unhighlight();
},
PlayEarcon: function() {
new Audio(u.earconFile).play();
},
SpeechOutput: function() {
u.Reset();
[ "Subtitles" ].forEach(function(e) {
var t = MathJax.Menu.menu.FindId("Accessibility", "Explorer", e);
t && (t.disabled = !t.disabled);
}), u.Regenerate();
},
RemoveSpeech: function() {
h.setSpeechOption();
for (var e, t = 0, a = MathJax.Hub.getAllJax(); e = a[t]; t++) {
var i = document.getElementById(e.inputID + "-Frame");
i && (i.removeAttribute("hasspeech"), i.removeAttribute("haslabel"));
}
},
Regenerate: function() {
for (var e, t = 0, a = MathJax.Hub.getAllJax(); e = a[t]; t++) {
var i = document.getElementById(e.inputID + "-Frame");
i && (i.removeAttribute("hasspeech"), u.AddSpeech(i));
}
},
Startup: function() {
var e = MathJax.Extension.collapsible;
e && e.Dependent(h), h.addDefaults();
}
};
MathJax.Hub.Register.StartupHook("End Extensions", function() {
h[!1 === s.explorer ? "Disable" : "Enable"](), MathJax.Hub.Startup.signal.Post("Explorer Ready"),
MathJax.Hub.Register.StartupHook("MathMenu Ready", function() {
l = MathJax.Menu.cookie;
var e, t = MathJax.Menu.ITEM, a = MathJax.Menu.menu, i = {
action: u.Reset
}, n = {
action: h.speechOption
}, o = t.SUBMENU([ "Explorer", "Explorer" ], t.CHECKBOX([ "Active", "Active" ], "explorer", {
action: function(e) {
h[s.explorer ? "Enable" : "Disable"](!0, !0), MathJax.Menu.saveCookie();
}
}), t.RULE(), t.CHECKBOX([ "Walker", "Walker" ], "Assistive-walker"), t.SUBMENU([ "Highlight", "Highlight" ], t.RADIO([ "none", "None" ], "Assistive-highlight", i), t.RADIO([ "hover", "Hover" ], "Assistive-highlight", i), t.RADIO([ "flame", "Flame" ], "Assistive-highlight", i)), t.SUBMENU([ "Background", "Background" ], t.RADIO([ "blue", "Blue" ], "Assistive-background", i), t.RADIO([ "red", "Red" ], "Assistive-background", i), t.RADIO([ "green", "Green" ], "Assistive-background", i), t.RADIO([ "yellow", "Yellow" ], "Assistive-background", i), t.RADIO([ "cyan", "Cyan" ], "Assistive-background", i), t.RADIO([ "magenta", "Magenta" ], "Assistive-background", i), t.RADIO([ "white", "White" ], "Assistive-background", i), t.RADIO([ "black", "Black" ], "Assistive-background", i)), t.SUBMENU([ "Foreground", "Foreground" ], t.RADIO([ "black", "Black" ], "Assistive-foreground", i), t.RADIO([ "white", "White" ], "Assistive-foreground", i), t.RADIO([ "magenta", "Magenta" ], "Assistive-foreground", i), t.RADIO([ "cyan", "Cyan" ], "Assistive-foreground", i), t.RADIO([ "yellow", "Yellow" ], "Assistive-foreground", i), t.RADIO([ "green", "Green" ], "Assistive-foreground", i), t.RADIO([ "red", "Red" ], "Assistive-foreground", i), t.RADIO([ "blue", "Blue" ], "Assistive-foreground", i)), t.RULE(), t.CHECKBOX([ "SpeechOutput", "Speech Output" ], "Assistive-speech", {
action: u.SpeechOutput
}), t.CHECKBOX([ "Subtitles", "Subtitles" ], "Assistive-subtitle", {
disabled: !s["Assistive-speech"]
}), t.RULE(), t.SUBMENU([ "Mathspeak", "Mathspeak Rules" ], t.RADIO([ "mathspeak-default", "Verbose" ], "Assistive-ruleset", n), t.RADIO([ "mathspeak-brief", "Brief" ], "Assistive-ruleset", n), t.RADIO([ "mathspeak-sbrief", "Superbrief" ], "Assistive-ruleset", n)), t.RADIO([ "clearspeak-default", "Clearspeak Rules" ], "Assistive-ruleset", n), t.SUBMENU([ "Chromevox", "ChromeVox Rules" ], t.RADIO([ "chromevox-default", "Verbose" ], "Assistive-ruleset", n), t.RADIO([ "chromevox-alternative", "Alternative" ], "Assistive-ruleset", n))), r = (a.FindId("Accessibility") || {}).submenu;
r ? null !== (e = r.IndexOfId("Explorer")) ? r.items[e] = o : (e = r.IndexOfId("CollapsibleMath"),
r.items.splice(e + 1, 0, o)) : (e = a.IndexOfId("CollapsibleMath"), a.items.splice(e + 1, 0, o)),
s.explorer || h.DisableMenus(!0);
}, 20);
}, 20);
}), MathJax.Hub.Register.StartupHook("SVG Jax Ready", function() {
MathJax.Hub.Config({
SVG: {
addMMLclasses: !0
}
});
var t, e = MathJax.OutputJax.SVG;
parseFloat(e.version) < 2.7 && (t = e.getJaxFromMath, e.Augment({
getJaxFromMath: function(e) {
return e.parentNode.className.match(/MathJax_SVG_Display/) && (e = e.parentNode),
t.call(this, e);
}
}));
}), MathJax.Ajax.config.path.a11y || (MathJax.Ajax.config.path.a11y = MathJax.Hub.config.root + "/extensions/a11y"),
MathJax.Ajax.Require("[a11y]/collapsible.js"), MathJax.Hub.Register.StartupHook("Collapsible Ready", function() {
MathJax.Extension.explorer.Explorer.Startup(), MathJax.Ajax.loadComplete("[a11y]/explorer.js");
});

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MathJax.Extension["semantic-enrich"] = {
version: "1.6.0",
config: MathJax.Hub.CombineConfig("semantic-enrich", {
disabled: !1
}),
dependents: [],
running: !1,
mstyleLookup: {
mi: [ "mathvariant" ],
mo: [ "mathvariant", "accent", "largeop", "form", "fence", "separator", "movablelimits" ],
mn: [ "mathvariant" ],
mtext: [ "mathvariant" ],
ms: [ "mathvariant" ],
mfrac: [ "linethickness" ],
mfenced: [ "open", "close", "separators" ],
menclose: [ "notation" ],
munder: [ "accentunder" ],
mover: [ "accent" ],
munderover: [ "accent", "accentunder" ]
},
Filter: function(t, a, e) {
if (delete t.enriched, !this.config.disabled) try {
this.running = !0;
var n = sre.Enrich.semanticMathmlSync(t.root.toMathML());
t.root = MathJax.InputJax.MathML.Parse.prototype.MakeMML(n), t.root.inputID = e.id,
t.enriched = !0, this.running = !1;
} catch (t) {
throw this.running = !1, t;
}
},
Enable: function(t, a) {
this.config.disabled = !1, t && MathJax.Hub.Queue([ "Reprocess", MathJax.Hub ]);
},
Disable: function(t, a) {
this.config.disabled = !0;
for (var e = this.dependents.length - 1; 0 <= e; e--) {
var n = this.dependents[e];
n.Disable && n.Disable(!1, a);
}
t && MathJax.Hub.Queue([ "Reprocess", MathJax.Hub ]);
},
Dependent: function(t) {
this.dependents.push(t);
}
}, function() {
var t = MathJax.Ajax.config.path;
t.a11y || (t.a11y = HUB.config.root + "/extensions/a11y"), t.SRE || (t.SRE = MathJax.Ajax.fileURL(t.a11y)),
MathJax.Ajax.Load("[SRE]/mathjax-sre.js"), MathJax.Hub.Register.StartupHook("Sre Ready", [ "loadComplete", MathJax.Ajax, "[SRE]/mathjax-sre.js" ]);
}(), MathJax.Callback.Queue([ "Require", MathJax.Ajax, "[MathJax]/jax/element/mml/jax.js" ], [ "Require", MathJax.Ajax, "[MathJax]/jax/input/MathML/config.js" ], [ "Require", MathJax.Ajax, "[MathJax]/jax/input/MathML/jax.js" ], [ "Require", MathJax.Ajax, "[MathJax]/extensions/toMathML.js" ], MathJax.Hub.Register.StartupHook("Sre Ready", function() {
var l = MathJax.ElementJax.mml, c = MathJax.Extension["semantic-enrich"];
l.mbase.Augment({
toMathMLattributes: function() {
var t = "mstyle" === this.type ? l.math.prototype.defaults : this.defaults, a = this.attrNames || l.copyAttributeNames, e = l.skipAttributes, n = l.copyAttributes, s = c.running && c.mstyleLookup[this.type] || [], i = [], h = this.attr || {};
if ("math" !== this.type || this.attr && "xmlns" in this.attr || i.push('xmlns="http://www.w3.org/1998/Math/MathML"'),
!this.attrNames) for (var r in t) e[r] || n[r] || !t.hasOwnProperty(r) || null != this[r] && this[r] !== t[r] && this.Get(r, null, 1) !== this[r] && this.toMathMLaddAttr(i, r, this[r]);
for (var o = 0, u = a.length; o < u; o++) 1 === n[a[o]] && !t.hasOwnProperty(a[o]) || (value = h[a[o]],
null == value && (value = this[a[o]]), null != value && this.toMathMLaddAttr(i, a[o], value));
for (o = 0, u = s.length; o < u; o++) r = s[o], t.hasOwnProperty(r) && !i["_" + r] && (value = this.Get(r, 1),
null != value && this.toMathMLaddAttr(i, r, value));
return this.toMathMLclass(i), i.length ? " " + i.join(" ") : "";
},
toMathMLaddAttr: function(t, a, e) {
t.push(a + '="' + this.toMathMLquote(e) + '"'), t["_" + a] = 1;
}
});
var a = l.mo.prototype.setTeXclass;
l.mo.Augment({
setTeXclass: function(t) {
this.getValues("form", "lspace", "rspace");
return this.useMMLspacing ? (this.texClass = l.TEXCLASS.NONE, this) : this.attr && this.attr["data-semantic-added"] ? (this.texClass = this.prevClass = l.TEXCLASS.NONE,
t) : a.apply(this, arguments);
}
});
}), function() {
MathJax.Hub.postInputHooks.Add([ "Filter", MathJax.Extension["semantic-enrich"] ], 50),
MathJax.Hub.Startup.signal.Post("Semantic Enrich Ready"), MathJax.Ajax.loadComplete("[a11y]/semantic-enrich.js");
});

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The MIT License
Copyright (c) 2007 Cybozu Labs, Inc.
Copyright (c) 2012 Google Inc.
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
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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
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