in reply to Re^5: Regex fun
in thread Regex fun
The regexp engine has never been re-entrant. It has only mattered since we have /(?{ })/ and /(??{ })/, before that, there was no way to start another match before the first one was finished. So even if it were re-entrant, you couldn't use the fact.
This:
is very likely to do unexpected things due to the regexp engine not being re-entrant./PAT1 (??{m!PAT2!}) PAT3/
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