I tried this on a few versions.

These passed (OS X, MacPorts):

These also passed (CentOS): These failed:

This really seems to be something caused by an older version as others have said. I would recommend updating to a newer version and testing.

In reply to Re: regex with capture groups and branch reset crashes perl by mr_mischief
in thread regex with capture groups and branch reset crashes perl by Allinav

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