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63 lines
1.9 KiB
63 lines
1.9 KiB
"""
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pygments.lexers.iolang
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~~~~~~~~~~~~~~~~~~~~~~
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Lexers for the Io language.
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:copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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from pygments.lexer import RegexLexer
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from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
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Number, Whitespace
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__all__ = ['IoLexer']
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class IoLexer(RegexLexer):
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"""
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For Io (a small, prototype-based programming language) source.
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.. versionadded:: 0.10
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"""
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name = 'Io'
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url = 'http://iolanguage.com/'
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filenames = ['*.io']
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aliases = ['io']
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mimetypes = ['text/x-iosrc']
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tokens = {
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'root': [
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(r'\n', Whitespace),
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(r'\s+', Whitespace),
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# Comments
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(r'//(.*?)$', Comment.Single),
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(r'#(.*?)$', Comment.Single),
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(r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/', Comment.Multiline),
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(r'/\+', Comment.Multiline, 'nestedcomment'),
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# DoubleQuotedString
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(r'"(\\\\|\\[^\\]|[^"\\])*"', String),
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# Operators
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(r'::=|:=|=|\(|\)|;|,|\*|-|\+|>|<|@|!|/|\||\^|\.|%|&|\[|\]|\{|\}',
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Operator),
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# keywords
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(r'(clone|do|doFile|doString|method|for|if|else|elseif|then)\b',
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Keyword),
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# constants
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(r'(nil|false|true)\b', Name.Constant),
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# names
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(r'(Object|list|List|Map|args|Sequence|Coroutine|File)\b',
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Name.Builtin),
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(r'[a-zA-Z_]\w*', Name),
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# numbers
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(r'(\d+\.?\d*|\d*\.\d+)([eE][+-]?[0-9]+)?', Number.Float),
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(r'\d+', Number.Integer)
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],
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'nestedcomment': [
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(r'[^+/]+', Comment.Multiline),
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(r'/\+', Comment.Multiline, '#push'),
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(r'\+/', Comment.Multiline, '#pop'),
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(r'[+/]', Comment.Multiline),
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]
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}
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