Probably overkill, but you can check how Regexp::Common does it.

It exports the regexps in a tied hash, and uses some tricks to generate parametrized regexps on demand.

The interesting thing is that you can interpolate the hash slots directly as in $foo =~ /$RE{balanced}{-parens=>'()'}/

In reply to Re: Use function as a regex by salva
in thread Use function as a regex by stevieb

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