From perlre#Extended-Patterns

> "(?^aluimsx:pattern)"

This is for clustering, not capturing ; it groups subexpressions like "()", but doesn't make backreferences as "()" does.

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Je suis Charlie!

In reply to Re: On error, how to show the regexp values? (?: doesn't capture) by LanX
in thread Tracing warnings: how to show the regexp values? by nikolay

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