This has to do with the fact that the regex engine is not re-entrant. You can't use a regex inside a (?{}) construct. Fixing this is on the TODO list for the current Perl and the work that Nicholas Clark is currently working on may be a first step towards this.

In reply to Re: Perl segfaulting when using a hairy regex by Paladin
in thread Perl segfaulting when using a hairy regex by acid06

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