84 lines
2.4 KiB
Python
84 lines
2.4 KiB
Python
"""
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pygments.lexers.json5
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~~~~~~~~~~~~~~~~~~~~~
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Lexer for Json5 file format.
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:copyright: Copyright 2006-2025 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 include, RegexLexer, words
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from pygments.token import Comment, Keyword, Name, Number, Punctuation, \
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String, Whitespace
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__all__ = ['Json5Lexer']
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def string_rules(quote_mark):
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return [
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(rf"[^{quote_mark}\\]+", String),
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(r"\\.", String.Escape),
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(r"\\", Punctuation),
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(quote_mark, String, '#pop'),
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]
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def quoted_field_name(quote_mark):
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return [
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(rf'([^{quote_mark}\\]|\\.)*{quote_mark}',
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Name.Variable, ('#pop', 'object_value'))
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]
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class Json5Lexer(RegexLexer):
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"""Lexer for JSON5 data structures."""
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name = 'JSON5'
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aliases = ['json5']
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filenames = ['*.json5']
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url = "https://json5.org"
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version_added = '2.19'
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tokens = {
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'_comments': [
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(r'(//|#).*\n', Comment.Single),
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(r'/\*\*([^/]|/(?!\*))*\*/', String.Doc),
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(r'/\*([^/]|/(?!\*))*\*/', Comment),
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],
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'root': [
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include('_comments'),
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(r"'", String, 'singlestring'),
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(r'"', String, 'doublestring'),
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(r'[+-]?0[xX][0-9a-fA-F]+', Number.Hex),
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(r'[+-.]?[0-9]+[.]?[0-9]?([eE][-]?[0-9]+)?', Number.Float),
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(r'\{', Punctuation, 'object'),
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(r'\[', Punctuation, 'array'),
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(words(['false', 'Infinity', '+Infinity', '-Infinity', 'NaN',
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'null', 'true',], suffix=r'\b'), Keyword),
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(r'\s+', Whitespace),
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(r':', Punctuation),
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],
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'singlestring': string_rules("'"),
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'doublestring': string_rules('"'),
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'array': [
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(r',', Punctuation),
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(r'\]', Punctuation, '#pop'),
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include('root'),
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],
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'object': [
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(r'\s+', Whitespace),
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(r'\}', Punctuation, '#pop'),
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(r'\b([^:]+)', Name.Variable, 'object_value'),
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(r'"', Name.Variable, 'double_field_name'),
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(r"'", Name.Variable, 'single_field_name'),
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include('_comments'),
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],
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'double_field_name': quoted_field_name('"'),
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'single_field_name': quoted_field_name("'"),
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'object_value': [
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(r',', Punctuation, '#pop'),
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(r'\}', Punctuation, '#pop:2'),
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include('root'),
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],
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}
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