codekingpro/portable-devtools

1"""2    pygments.lexers.chapel3    ~~~~~~~~~~~~~~~~~~~~~~4 5    Lexer for the Chapel language.6 7    :copyright: Copyright 2006-present by the Pygments team, see AUTHORS.8    :license: BSD, see LICENSE for details.9"""10 11from pygments.lexer import RegexLexer, bygroups, words12from pygments.token import Text, Comment, Operator, Keyword, Name, String, \13    Number, Punctuation, Whitespace14 15__all__ = ['ChapelLexer']16 17 18class ChapelLexer(RegexLexer):19    """20    For Chapel source.21    """22    name = 'Chapel'23    url = 'https://chapel-lang.org/'24    filenames = ['*.chpl']25    aliases = ['chapel', 'chpl']26    version_added = '2.0'27    # mimetypes = ['text/x-chapel']28 29    known_types = ('bool', 'bytes', 'complex', 'imag', 'int', 'locale',30                   'nothing', 'opaque', 'range', 'real', 'string', 'uint',31                   'void')32 33    type_modifiers_par = ('atomic', 'single', 'sync')34    type_modifiers_mem = ('borrowed', 'owned', 'shared', 'unmanaged')35    type_modifiers = (*type_modifiers_par, *type_modifiers_mem)36 37    declarations = ('config', 'const', 'in', 'inout', 'out', 'param', 'ref',38                    'type', 'var')39 40    constants = ('false', 'nil', 'none', 'true')41 42    other_keywords = ('align', 'as',43                      'begin', 'break', 'by',44                      'catch', 'cobegin', 'coforall', 'continue',45                      'defer', 'delete', 'dmapped', 'do', 'domain',46                      'else', 'enum', 'except', 'export', 'extern',47                      'for', 'forall', 'foreach', 'forwarding',48                      'if', 'implements', 'import', 'index', 'init', 'inline',49                      'label', 'lambda', 'let', 'lifetime', 'local',50                      'new', 'noinit',51                      'on', 'only', 'otherwise', 'override',52                      'pragma', 'primitive', 'private', 'prototype', 'public',53                      'reduce', 'require', 'return',54                      'scan', 'select', 'serial', 'sparse', 'subdomain',55                      'then', 'this', 'throw', 'throws', 'try',56                      'use',57                      'when', 'where', 'while', 'with',58                      'yield',59                      'zip')60 61    tokens = {62        'root': [63            (r'\n', Whitespace),64            (r'\s+', Whitespace),65            (r'\\\n', Text),66 67            (r'//(.*?)\n', Comment.Single),68            (r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/', Comment.Multiline),69 70            (words(declarations, suffix=r'\b'), Keyword.Declaration),71            (words(constants, suffix=r'\b'), Keyword.Constant),72            (words(known_types, suffix=r'\b'), Keyword.Type),73            (words((*type_modifiers, *other_keywords), suffix=r'\b'), Keyword),74 75            (r'@', Keyword, 'attributename'),76            (r'(iter)(\s+)', bygroups(Keyword, Whitespace), 'procname'),77            (r'(proc)(\s+)', bygroups(Keyword, Whitespace), 'procname'),78            (r'(operator)(\s+)', bygroups(Keyword, Whitespace), 'procname'),79            (r'(class|interface|module|record|union)(\s+)', bygroups(Keyword, Whitespace),80             'classname'),81 82            # imaginary integers83            (r'\d+i', Number),84            (r'\d+\.\d*([Ee][-+]\d+)?i', Number),85            (r'\.\d+([Ee][-+]\d+)?i', Number),86            (r'\d+[Ee][-+]\d+i', Number),87 88            # reals cannot end with a period due to lexical ambiguity with89            # .. operator. See reference for rationale.90            (r'(\d*\.\d+)([eE][+-]?[0-9]+)?i?', Number.Float),91            (r'\d+[eE][+-]?[0-9]+i?', Number.Float),92 93            # integer literals94            # -- binary95            (r'0[bB][01]+', Number.Bin),96            # -- hex97            (r'0[xX][0-9a-fA-F]+', Number.Hex),98            # -- octal99            (r'0[oO][0-7]+', Number.Oct),100            # -- decimal101            (r'[0-9]+', Number.Integer),102 103            # strings104            (r'"(\\\\|\\"|[^"])*"', String),105            (r"'(\\\\|\\'|[^'])*'", String),106 107            # tokens108            (r'(=|\+=|-=|\*=|/=|\*\*=|%=|&=|\|=|\^=|&&=|\|\|=|<<=|>>=|'109             r'<=>|<~>|\.\.|by|#|\.\.\.|'110             r'&&|\|\||!|&|\||\^|~|<<|>>|'111             r'==|!=|<=|>=|<|>|'112             r'[+\-*/%]|\*\*)', Operator),113            (r'[:;,.?()\[\]{}]', Punctuation),114 115            # identifiers116            (r'[a-zA-Z_][\w$]*', Name.Other),117        ],118        'classname': [119            (r'[a-zA-Z_][\w$]*', Name.Class, '#pop'),120        ],121        'procname': [122            (r'([a-zA-Z_][.\w$]*|'  # regular function name, including secondary123             r'\~[a-zA-Z_][.\w$]*|'  # support for legacy destructors124             r'[+*/!~%<>=&^|\-:]{1,2})',  # operators125             Name.Function, '#pop'),126 127            # allow `proc (atomic T).foo`128            (r'\(', Punctuation, "receivertype"),129            (r'\)+\.', Punctuation),130        ],131        'receivertype': [132            (words(type_modifiers, suffix=r'\b'), Keyword),133            (words(known_types, suffix=r'\b'), Keyword.Type),134            (r'[^()]*', Name.Other, '#pop'),135        ],136        'attributename': [137            (r'[a-zA-Z_][.\w$]*', Name.Decorator, '#pop'),138        ],139    }140