I think you are after japhy's YAPE::Regex::Explain as noted above.

In addition there is Rx. You can also try Komodo from Active State, which, IIRC, is based on Rx.

I also recommend checking out GraphViz::Regex.

HTH, --traveler

In reply to Re: Understanding someone else's parser by traveler
in thread Understanding someone else's parser by John M. Dlugosz

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