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""" pygments.lexers.nimrod ~~~~~~~~~~~~~~~~~~~~~~ Lexer for the Nim language (formerly known as Nimrod). :copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS. :license: BSD, see LICENSE for details. """ import re from pygments.lexer import RegexLexer, include, default, bygroups from pygments.token import Text, Comment, Operator, Keyword, Name, String, \ Number, Punctuation, Error __all__ = ['NimrodLexer'] class NimrodLexer(RegexLexer): """ For Nim source code. .. versionadded:: 1.5 """ name = 'Nimrod' url = 'http://nim-lang.org/' aliases = ['nimrod', 'nim'] filenames = ['*.nim', '*.nimrod'] mimetypes = ['text/x-nim'] flags = re.MULTILINE | re.IGNORECASE def underscorize(words): newWords = [] new = [] for word in words: for ch in word: new.append(ch) new.append("_?") newWords.append(''.join(new)) new = [] return "|".join(newWords) keywords = [ 'addr', 'and', 'as', 'asm', 'bind', 'block', 'break', 'case', 'cast', 'concept', 'const', 'continue', 'converter', 'defer', 'discard', 'distinct', 'div', 'do', 'elif', 'else', 'end', 'enum', 'except', 'export', 'finally', 'for', 'if', 'in', 'yield', 'interface', 'is', 'isnot', 'iterator', 'let', 'mixin', 'mod', 'not', 'notin', 'object', 'of', 'or', 'out', 'ptr', 'raise', 'ref', 'return', 'shl', 'shr', 'static', 'try', 'tuple', 'type', 'using', 'when', 'while', 'xor' ] keywordsPseudo = [ 'nil', 'true', 'false' ] opWords = [ 'and', 'or', 'not', 'xor', 'shl', 'shr', 'div', 'mod', 'in', 'notin', 'is', 'isnot' ] types = [ 'int', 'int8', 'int16', 'int32', 'int64', 'float', 'float32', 'float64', 'bool', 'char', 'range', 'array', 'seq', 'set', 'string' ] tokens = { 'root': [ # Comments (r'##\[', String.Doc, 'doccomment'), (r'##.*$', String.Doc), (r'#\[', Comment.Multiline, 'comment'), (r'#.*$', Comment), # Pragmas (r'\{\.', String.Other, 'pragma'), # Operators (r'[*=><+\-/@$~&%!?|\\\[\]]', Operator), (r'\.\.|\.|,|\[\.|\.\]|\{\.|\.\}|\(\.|\.\)|\{|\}|\(|\)|:|\^|`|;', Punctuation), # Case statement branch (r'(\n\s*)(of)(\s)', bygroups(Text.Whitespace, Keyword, Text.Whitespace), 'casebranch'), # Strings (r'(?:[\w]+)"', String, 'rdqs'), (r'"""', String.Double, 'tdqs'), ('"', String, 'dqs'), # Char ("'", String.Char, 'chars'), # Keywords (r'(%s)\b' % underscorize(opWords), Operator.Word), (r'(proc|func|method|macro|template)(\s)(?![(\[\]])', bygroups(Keyword, Text.Whitespace), 'funcname'), (r'(%s)\b' % underscorize(keywords), Keyword), (r'(%s)\b' % underscorize(['from', 'import', 'include', 'export']), Keyword.Namespace), (r'(v_?a_?r)\b', Keyword.Declaration), (r'(%s)\b' % underscorize(types), Name.Builtin), (r'(%s)\b' % underscorize(keywordsPseudo), Keyword.Pseudo), # Identifiers (r'\b((?![_\d])\w)(((?!_)\w)|(_(?!_)\w))*', Name), # Numbers (r'[0-9][0-9_]*(?=([e.]|\'f(32|64)))', Number.Float, ('float-suffix', 'float-number')), (r'0x[a-f0-9][a-f0-9_]*', Number.Hex, 'int-suffix'), (r'0b[01][01_]*', Number.Bin, 'int-suffix'), (r'0o[0-7][0-7_]*', Number.Oct, 'int-suffix'), (r'[0-9][0-9_]*', Number.Integer, 'int-suffix'), # Whitespace (r'\s+', Text.Whitespace), (r'.+$', Error), ], 'chars': [ (r'\\([\\abcefnrtvl"\']|x[a-f0-9]{2}|[0-9]{1,3})', String.Escape), (r"'", String.Char, '#pop'), (r".", String.Char) ], 'strings': [ (r'(?<!\$)\$(\d+|#|\w+)+', String.Interpol), (r'[^\\\'"$\n]+', String), # quotes, dollars and backslashes must be parsed one at a time (r'[\'"\\]', String), # unhandled string formatting sign (r'\$', String) # newlines are an error (use "nl" state) ], 'doccomment': [ (r'[^\]#]+', String.Doc), (r'##\[', String.Doc, '#push'), (r'\]##', String.Doc, '#pop'), (r'[\]#]', String.Doc), ], 'comment': [ (r'[^\]#]+', Comment.Multiline), (r'#\[', Comment.Multiline, '#push'), (r'\]#', Comment.Multiline, '#pop'), (r'[\]#]', Comment.Multiline), ], 'dqs': [ (r'\\([\\abcefnrtvl"\']|\n|x[a-f0-9]{2}|[0-9]{1,3})', String.Escape), (r'"', String, '#pop'), include('strings') ], 'rdqs': [ (r'"(?!")', String, '#pop'), (r'""', String.Escape), include('strings') ], 'tdqs': [ (r'"""', String.Double, '#pop'), include('strings'), (r'\n', String.Double) ], 'funcname': [ (r'((?![\d_])\w)(((?!_)\w)|(_(?!_)\w))*', Name.Function, '#pop'), (r'`.+`', Name.Function, '#pop') ], 'nl': [ (r'\n', String) ], 'float-number': [ (r'\.(?!\.)[0-9_]*[f]*', Number.Float), (r'e[+-]?[0-9][0-9_]*', Number.Float), default('#pop') ], 'float-suffix': [ (r'\'f(32|64)', Number.Float), default('#pop') ], 'int-suffix': [ (r'\'i(32|64)', Number.Integer.Long), (r'\'i(8|16)', Number.Integer), default('#pop') ], 'casebranch': [ (r',', Punctuation), (r'[\n ]+', Text.Whitespace), (r':', Operator, '#pop'), (r'\w+|[^:]', Name.Label), ], 'pragma': [ (r'[:,]', Text), (r'[\n ]+', Text.Whitespace), (r'\.\}', String.Other, '#pop'), (r'\w+|\W+|[^.}]', String.Other), ], }