You can't go wrong with Mastering Regular Expressions. If, however, you decide you have something a little less ambitious in mind, you may want to look at YAPE::Regex::Explain or perhaps GraphViz::Regex...

Reverse engineering regular expressions is an interesting read, and grinder's Regexp::Assemble is simply awesome.

HTH,

planetscape

In reply to Re: internal engine of regular expression by planetscape
in thread internal engine of regular expression by spadacciniweb

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