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Reuse capture

Note! This site is about Perl 6.
If you are looking for a solution for the current production version of Perl 5, please check out the Perl 5 tutorial.

You can also reuse the matches within the regex

Let's see an example (based on the perl 6 book) to try to find repeated words:

tutorial/regex2/reuse_capture.p6

use v6;

my $s = 'The elvish brown fox jumped over the the lazy dog';
if $s ~~ m/ (\w+) \W+ $0 / {
    say $/[0];
}
# this will print an 'e' which is not what we wanted



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Gabor Szabo
Written by Gabor Szabo

Published on 2012-01-01


Prev: Capture with quantifier

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