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venv/Lib/site-packages/pygments/lexers/monte.py

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+# -*- coding: utf-8 -*-
+"""
+    pygments.lexers.monte
+    ~~~~~~~~~~~~~~~~~~~~~
+
+    Lexer for the Monte programming language.
+
+    :copyright: Copyright 2006-2020 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+from pygments.token import Comment, Error, Keyword, Name, Number, Operator, \
+    Punctuation, String, Whitespace
+from pygments.lexer import RegexLexer, include, words
+
+__all__ = ['MonteLexer']
+
+
+# `var` handled separately
+# `interface` handled separately
+_declarations = ['bind', 'def', 'fn', 'object']
+_methods = ['method', 'to']
+_keywords = [
+    'as', 'break', 'catch', 'continue', 'else', 'escape', 'exit', 'exports',
+    'extends', 'finally', 'for', 'guards', 'if', 'implements', 'import',
+    'in', 'match', 'meta', 'pass', 'return', 'switch', 'try', 'via', 'when',
+    'while',
+]
+_operators = [
+    # Unary
+    '~', '!',
+    # Binary
+    '+', '-', '*', '/', '%', '**', '&', '|', '^', '<<', '>>',
+    # Binary augmented
+    '+=', '-=', '*=', '/=', '%=', '**=', '&=', '|=', '^=', '<<=', '>>=',
+    # Comparison
+    '==', '!=', '<', '<=', '>', '>=', '<=>',
+    # Patterns and assignment
+    ':=', '?', '=~', '!~', '=>',
+    # Calls and sends
+    '.', '<-', '->',
+]
+_escape_pattern = (
+    r'(?:\\x[0-9a-fA-F]{2}|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}|'
+    r'\\["\'\\bftnr])')
+# _char = _escape_chars + [('.', String.Char)]
+_identifier = r'[_a-zA-Z]\w*'
+
+_constants = [
+    # Void constants
+    'null',
+    # Bool constants
+    'false', 'true',
+    # Double constants
+    'Infinity', 'NaN',
+    # Special objects
+    'M', 'Ref', 'throw', 'traceln',
+]
+
+_guards = [
+    'Any', 'Binding', 'Bool', 'Bytes', 'Char', 'DeepFrozen', 'Double',
+    'Empty', 'Int', 'List', 'Map', 'Near', 'NullOk', 'Same', 'Selfless',
+    'Set', 'Str', 'SubrangeGuard', 'Transparent', 'Void',
+]
+
+_safeScope = [
+    '_accumulateList', '_accumulateMap', '_auditedBy', '_bind',
+    '_booleanFlow', '_comparer', '_equalizer', '_iterForever', '_loop',
+    '_makeBytes', '_makeDouble', '_makeFinalSlot', '_makeInt', '_makeList',
+    '_makeMap', '_makeMessageDesc', '_makeOrderedSpace', '_makeParamDesc',
+    '_makeProtocolDesc', '_makeSourceSpan', '_makeString', '_makeVarSlot',
+    '_makeVerbFacet', '_mapExtract', '_matchSame', '_quasiMatcher',
+    '_slotToBinding', '_splitList', '_suchThat', '_switchFailed',
+    '_validateFor', 'b__quasiParser', 'eval', 'import', 'm__quasiParser',
+    'makeBrandPair', 'makeLazySlot', 'safeScope', 'simple__quasiParser',
+]
+
+
+class MonteLexer(RegexLexer):
+    """
+    Lexer for the `Monte <https://monte.readthedocs.io/>`_ programming language.
+
+    .. versionadded:: 2.2
+    """
+    name = 'Monte'
+    aliases = ['monte']
+    filenames = ['*.mt']
+
+    tokens = {
+        'root': [
+            # Comments
+            (r'#[^\n]*\n', Comment),
+
+            # Docstrings
+            # Apologies for the non-greedy matcher here.
+            (r'/\*\*.*?\*/', String.Doc),
+
+            # `var` declarations
+            (r'\bvar\b', Keyword.Declaration, 'var'),
+
+            # `interface` declarations
+            (r'\binterface\b', Keyword.Declaration, 'interface'),
+
+            # method declarations
+            (words(_methods, prefix='\\b', suffix='\\b'),
+             Keyword, 'method'),
+
+            # All other declarations
+            (words(_declarations, prefix='\\b', suffix='\\b'),
+             Keyword.Declaration),
+
+            # Keywords
+            (words(_keywords, prefix='\\b', suffix='\\b'), Keyword),
+
+            # Literals
+            ('[+-]?0x[_0-9a-fA-F]+', Number.Hex),
+            (r'[+-]?[_0-9]+\.[_0-9]*([eE][+-]?[_0-9]+)?', Number.Float),
+            ('[+-]?[_0-9]+', Number.Integer),
+            ("'", String.Double, 'char'),
+            ('"', String.Double, 'string'),
+
+            # Quasiliterals
+            ('`', String.Backtick, 'ql'),
+
+            # Operators
+            (words(_operators), Operator),
+
+            # Verb operators
+            (_identifier + '=', Operator.Word),
+
+            # Safe scope constants
+            (words(_constants, prefix='\\b', suffix='\\b'),
+             Keyword.Pseudo),
+
+            # Safe scope guards
+            (words(_guards, prefix='\\b', suffix='\\b'), Keyword.Type),
+
+            # All other safe scope names
+            (words(_safeScope, prefix='\\b', suffix='\\b'),
+             Name.Builtin),
+
+            # Identifiers
+            (_identifier, Name),
+
+            # Punctuation
+            (r'\(|\)|\{|\}|\[|\]|:|,', Punctuation),
+
+            # Whitespace
+            (' +', Whitespace),
+
+            # Definite lexer errors
+            ('=', Error),
+        ],
+        'char': [
+            # It is definitely an error to have a char of width == 0.
+            ("'", Error, 'root'),
+            (_escape_pattern, String.Escape, 'charEnd'),
+            ('.', String.Char, 'charEnd'),
+        ],
+        'charEnd': [
+            ("'", String.Char, '#pop:2'),
+            # It is definitely an error to have a char of width > 1.
+            ('.', Error),
+        ],
+        # The state of things coming into an interface.
+        'interface': [
+            (' +', Whitespace),
+            (_identifier, Name.Class, '#pop'),
+            include('root'),
+        ],
+        # The state of things coming into a method.
+        'method': [
+            (' +', Whitespace),
+            (_identifier, Name.Function, '#pop'),
+            include('root'),
+        ],
+        'string': [
+            ('"', String.Double, 'root'),
+            (_escape_pattern, String.Escape),
+            (r'\n', String.Double),
+            ('.', String.Double),
+        ],
+        'ql': [
+            ('`', String.Backtick, 'root'),
+            (r'\$' + _escape_pattern, String.Escape),
+            (r'\$\$', String.Escape),
+            (r'@@', String.Escape),
+            (r'\$\{', String.Interpol, 'qlNest'),
+            (r'@\{', String.Interpol, 'qlNest'),
+            (r'\$' + _identifier, Name),
+            ('@' + _identifier, Name),
+            ('.', String.Backtick),
+        ],
+        'qlNest': [
+            (r'\}', String.Interpol, '#pop'),
+            include('root'),
+        ],
+        # The state of things immediately following `var`.
+        'var': [
+            (' +', Whitespace),
+            (_identifier, Name.Variable, '#pop'),
+            include('root'),
+        ],
+    }