Re: I wonder...

[Jenda]

in reply to I wonder...
in thread Things you think you'll never use.

You mean something like:

$s = "xxyyyyyy";

$s =~ m/((x+)(??{'y' x length($2)}))/ and print "$1\n";

? :-)

[spurperl]

Yes this is exactly what I meant :-) But it's not the point of my post. The point was: this matching task is a real challenge for 'normal regexes'. This technique using ??{} is indeed a way to solve it. I wondered whether there are other ways, using more standard regex operators.