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""" |
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pygments.lexers.graphviz |
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~~~~~~~~~~~~~~~~~~~~~~~~ |
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Lexer for the DOT language (graphviz). |
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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 RegexLexer, bygroups |
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from pygments.token import Comment, Keyword, Operator, Name, String, Number, \ |
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Punctuation, Whitespace |
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__all__ = ['GraphvizLexer'] |
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class GraphvizLexer(RegexLexer): |
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""" |
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For graphviz DOT graph description language. |
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""" |
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name = 'Graphviz' |
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url = 'https://www.graphviz.org/doc/info/lang.html' |
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aliases = ['graphviz', 'dot'] |
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filenames = ['*.gv', '*.dot'] |
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mimetypes = ['text/x-graphviz', 'text/vnd.graphviz'] |
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version_added = '2.8' |
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tokens = { |
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'root': [ |
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(r'\s+', Whitespace), |
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(r'(#|//).*?$', Comment.Single), |
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(r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/', Comment.Multiline), |
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(r'(?i)(node|edge|graph|digraph|subgraph|strict)\b', Keyword), |
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(r'--|->', Operator), |
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(r'[{}[\]:;,]', Punctuation), |
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(r'(\b\D\w*)(\s*)(=)(\s*)', |
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bygroups(Name.Attribute, Whitespace, Punctuation, Whitespace), |
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'attr_id'), |
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(r'\b(n|ne|e|se|s|sw|w|nw|c|_)\b', Name.Builtin), |
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(r'\b\D\w*', Name.Tag), |
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(r'[-]?((\.[0-9]+)|([0-9]+(\.[0-9]*)?))', Number), |
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(r'"(\\"|[^"])*?"', Name.Tag), |
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(r'<', Punctuation, 'xml'), |
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], |
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'attr_id': [ |
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(r'\b\D\w*', String, '#pop'), |
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(r'[-]?((\.[0-9]+)|([0-9]+(\.[0-9]*)?))', Number, '#pop'), |
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(r'"(\\"|[^"])*?"', String.Double, '#pop'), |
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(r'<', Punctuation, ('#pop', 'xml')), |
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], |
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'xml': [ |
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(r'<', Punctuation, '#push'), |
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(r'>', Punctuation, '#pop'), |
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(r'\s+', Whitespace), |
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(r'[^<>\s]', Name.Tag), |
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] |
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} |
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