That just means your test isn't good enough. You are testing whether "begin end end begin" *contains* a matched begin/end pair. My test however anchor the regex to the beginning and end, and hence correctly flag "begin end begin end" as to *not* be a nested begin/end construct.

It's the same that /\d/ is *not* a correct regex to test if a string is a number. It's a test to see if a string contains a number. But if all you want to know is whether a string contains a begin/end delimited substring, all you need is /begin.*end/. No recursion required.

Abigail

In reply to Re: Matching nested begin/ends by Abigail-II
in thread Matching nested begin/ends by Abigail-II

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