Linter for (Pygments) regular expressions
Project description
Regexlint will examine all regular expressions in an importable Pygments lexer, and report things that are probably not doing what you think they’re doing. For example, patterns like:
(elseif|else)
It can also warn about a few syntax problems, for example this has two problems – the s+ outside the groups, and not enough actions in bygroups:
(r'(foo)\s+(bar)', bygroups(Blah)),
Usage
make demo
or
python2 cmdline.py pygments.lexers.web
or
python2 cmdline.py pygments.lexers.web:HtmlLexer
Todo
Figure out which phase should remove unnecessary backslashes
Write the alternation expander, so that ([ax]|a[bc]) fails the alternation order checks
Make more general than just for Pygments
License
This project is licensed under the Apache Public License, see COPYING
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