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80 lines
2.7 KiB
80 lines
2.7 KiB
1 week ago
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# -*- coding: utf-8 -*-
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"""
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pygments.lexers.parasail
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~~~~~~~~~~~~~~~~~~~~~~~~
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Lexer for ParaSail.
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:copyright: Copyright 2006-2019 by the Pygments team, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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import re
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from pygments.lexer import RegexLexer, include
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from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
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Number, Punctuation, Literal
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__all__ = ['ParaSailLexer']
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class ParaSailLexer(RegexLexer):
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"""
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For `ParaSail <http://www.parasail-lang.org>`_ source code.
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.. versionadded:: 2.1
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"""
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name = 'ParaSail'
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aliases = ['parasail']
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filenames = ['*.psi', '*.psl']
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mimetypes = ['text/x-parasail']
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flags = re.MULTILINE
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tokens = {
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'root': [
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(r'[^\S\n]+', Text),
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(r'//.*?\n', Comment.Single),
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(r'\b(and|or|xor)=', Operator.Word),
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(r'\b(and(\s+then)?|or(\s+else)?|xor|rem|mod|'
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r'(is|not)\s+null)\b',
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Operator.Word),
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# Keywords
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(r'\b(abs|abstract|all|block|class|concurrent|const|continue|'
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r'each|end|exit|extends|exports|forward|func|global|implements|'
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r'import|in|interface|is|lambda|locked|new|not|null|of|op|'
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r'optional|private|queued|ref|return|reverse|separate|some|'
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r'type|until|var|with|'
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# Control flow
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r'if|then|else|elsif|case|for|while|loop)\b',
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Keyword.Reserved),
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(r'(abstract\s+)?(interface|class|op|func|type)',
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Keyword.Declaration),
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# Literals
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(r'"[^"]*"', String),
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(r'\\[\'ntrf"0]', String.Escape),
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(r'#[a-zA-Z]\w*', Literal), # Enumeration
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include('numbers'),
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(r"'[^']'", String.Char),
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(r'[a-zA-Z]\w*', Name),
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# Operators and Punctuation
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(r'(<==|==>|<=>|\*\*=|<\|=|<<=|>>=|==|!=|=\?|<=|>=|'
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r'\*\*|<<|>>|=>|:=|\+=|-=|\*=|\|=|\||/=|\+|-|\*|/|'
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r'\.\.|<\.\.|\.\.<|<\.\.<)',
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Operator),
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(r'(<|>|\[|\]|\(|\)|\||:|;|,|.|\{|\}|->)',
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Punctuation),
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(r'\n+', Text),
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],
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'numbers': [
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(r'\d[0-9_]*#[0-9a-fA-F][0-9a-fA-F_]*#', Number.Hex), # any base
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(r'0[xX][0-9a-fA-F][0-9a-fA-F_]*', Number.Hex), # C-like hex
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(r'0[bB][01][01_]*', Number.Bin), # C-like bin
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(r'\d[0-9_]*\.\d[0-9_]*[eE][+-]\d[0-9_]*', # float exp
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Number.Float),
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(r'\d[0-9_]*\.\d[0-9_]*', Number.Float), # float
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(r'\d[0-9_]*', Number.Integer), # integer
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],
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}
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