Re^3: On error, how to show the regexp values? (tracing warnings)

> Even outside the debugger, you can establish a warnings handler:

Yes, since "for debugging" doesn't mean "inside debugger"

> And the reason $2 is undefined

> has only one capture group, (\d).

capture groups are unrelated to \d

The outer parens would capture without the colon :

Cheers Rolf
_{(addicted to the Perl Programming Language and ☆☆☆☆ :)

Je suis Charlie!}

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Re^4: On error, how to show the regexp values? (tracing warnings) by Anonymous Monk on Jan 08, 2017 at 02:01 UTC
>> has only one capture group, (\d). > capture groups are unrelated to \d Capture groups in general are unrelated to \d, but nonetheless the lone capture group in the regexp is `(\d)`. > The outer parens would capture without the colon : Also correct. But in fact the outer parens do have the colon, so they do not capture.	[reply] [d/l]