Humm, thats an interesting idea. Ive been ponderng ways to allow more programatic introspection of compiled regexps. I have to admit I hadn't thought of XML, but it does make a certain amount of sense as it would be pretty easy to emit, albeit verbose.

I was thinking of some kind of script that walked the regex optree and converted to perl structures so it can interfaced with from perl easily, but I suppose spitting out XML is another option.

Interesting. Hmm.