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""" pygments.lexers.monte ~~~~~~~~~~~~~~~~~~~~~ Lexer for the Monte programming language. :copyright: Copyright 2006-2021 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'), ], }