I'd recommend this fine paper as a starting point for your investigations. I would continue with Regexp::Debugger, which is more recent.

And I like choice 3 in your original example, although the star suggests you might have '<>' in your input, which I would guess is unlikely. If the tag's empty, there's not much point in outputting it.

Alex / talexb / Toronto

Thanks PJ. We owe you so much. Groklaw -- RIP -- 2003 to 2013.

In reply to Re: Difference between these regexes by talexb
in thread Difference between these regexes by haukex

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