25f230191f
That way, we can set it to "" for old lexers, and check that it's present on new lexers. (In the future, we might also use it for better presentation in the documentation.)
66 lines
1.9 KiB
Python
66 lines
1.9 KiB
Python
"""
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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 2006-2023 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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"""
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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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version_added = '2.2'
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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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