Re^2: Determing whether a regexp has capturing matches

[adrianh]

in reply to Re: Determing whether a regexp has capturing matches
in thread Determing whether a regexp has capturing matches

D'oh. Of course. Thanks.

sub has_captured_matches { return $#+ };

[kyle]

Keep in mind that $#+ is -1 when the pattern does not match, regardless of whether there are captures.

"1234" =~ /(1)34/;
print $#+, "\n";
"1234" =~ /134/;
print $#+, "\n";

That prints "-1" both times, and -1 is considered a "true" value.

[adrianh]

Keep in mind that $#+ is -1 when the pattern does not match, regardless of whether there are captures.

Good point. I was just thinking of my context where I'm guaranteed a successful match.