"" "
pygments.lexers.graphviz
~~~~~~~~~~~~~~~~~~~~~~~~
Lexer for the DOT language (graphviz).
:copyright: Copyright 2006-2024 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"" "
from pygments.lexer import RegexLexer, bygroups
from pygments.token import Comment, Keyword, Operator, Name, String, Number, \
Punctuation, Whitespace
__all__ = ['GraphvizLexer' ]
class GraphvizLexer(RegexLexer):
"" "
For graphviz DOT graph description language.
"" "
name = 'Graphviz'
url = 'https://www.graphviz.org/doc/info/lang.html '
aliases = ['graphviz' , 'dot' ]
filenames = ['*.gv' , '*.dot' ]
mimetypes = ['text/x-graphviz' , 'text/vnd.graphviz' ]
version_added = '2.8'
tokens = {
'root' : [
(r'\s+' , Whitespace),
(r'(#|//).*?$', Comment.Single),
(r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/' , Comment.Multiline),
(r'(?i)(node|edge|graph|digraph|subgraph|strict)\b' , Keyword),
(r'--|->' , Operator),
(r'[{}[\]:;,]' , Punctuation),
(r'(\b\D\w*)(\s*)(=)(\s*)' ,
bygroups(Name.Attribute, Whitespace, Punctuation, Whitespace),
'attr_id' ),
(r'\b(n|ne|e|se|s|sw|w|nw|c|_)\b' , Name.Builtin),
(r'\b\D\w*' , Name.Tag), # node
(r'[-]?((\.[0-9]+)|([0-9]+(\.[0-9]*)?))' , Number),
(r'"(\\"|[^"])*?"' , Name.Tag), # quoted node
(r'<' , Punctuation, 'xml' ),
],
'attr_id' : [
(r'\b\D\w*' , String, '#pop'),
(r'[-]?((\.[0-9]+)|([0-9]+(\.[0-9]*)?))' , Number, '#pop'),
(r'"(\\"|[^"])*?"' , String.Double, '#pop'),
(r'<' , Punctuation, ('#pop', 'xml')),
],
'xml' : [
(r'<' , Punctuation, '#push'),
(r'>' , Punctuation, '#pop'),
(r'\s+' , Whitespace),
(r'[^<>\s]' , Name.Tag),
]
}
quality 60%
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