This is just a guess, but since the docs for Readonly make no mention of working with Regexp references like what qr// returns your problem might be some interaction between that module and mod_perl. Have you tried it without the Readonly?

If it is something to do with Readonly, you might be able to use the Readonly::Scalar1 procedure to mark just the reference itself as read-only. I'm not sure how the contents of a literal regex would change at a deeper level anyway, so Readonly trying to traverse and mark the referenced values shouldn't be necessary.

In reply to Re: Weird mod_perl Regex '0' behavior. by mr_mischief
in thread Weird mod_perl Regex '0' behavior. by vansance

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