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68 lines
1.9 KiB
Python
68 lines
1.9 KiB
Python
2 years ago
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"""
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pygments.lexers.rnc
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~~~~~~~~~~~~~~~~~~~
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Lexer for Relax-NG Compact syntax
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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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Punctuation
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__all__ = ['RNCCompactLexer']
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class RNCCompactLexer(RegexLexer):
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"""
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For RelaxNG-compact syntax.
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.. versionadded:: 2.2
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"""
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name = 'Relax-NG Compact'
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url = 'http://relaxng.org'
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aliases = ['rng-compact', 'rnc']
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filenames = ['*.rnc']
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tokens = {
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'root': [
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(r'namespace\b', Keyword.Namespace),
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(r'(?:default|datatypes)\b', Keyword.Declaration),
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(r'##.*$', Comment.Preproc),
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(r'#.*$', Comment.Single),
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(r'"[^"]*"', String.Double),
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# TODO single quoted strings and escape sequences outside of
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# double-quoted strings
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(r'(?:element|attribute|mixed)\b', Keyword.Declaration, 'variable'),
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(r'(text\b|xsd:[^ ]+)', Keyword.Type, 'maybe_xsdattributes'),
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(r'[,?&*=|~]|>>', Operator),
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(r'[(){}]', Punctuation),
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(r'.', Text),
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],
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# a variable has been declared using `element` or `attribute`
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'variable': [
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(r'[^{]+', Name.Variable),
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(r'\{', Punctuation, '#pop'),
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],
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# after an xsd:<datatype> declaration there may be attributes
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'maybe_xsdattributes': [
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(r'\{', Punctuation, 'xsdattributes'),
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(r'\}', Punctuation, '#pop'),
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(r'.', Text),
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],
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# attributes take the form { key1 = value1 key2 = value2 ... }
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'xsdattributes': [
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(r'[^ =}]', Name.Attribute),
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(r'=', Operator),
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(r'"[^"]*"', String.Double),
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(r'\}', Punctuation, '#pop'),
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(r'.', Text),
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],
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}
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