/usr/share/doc/libregexp-assemble-perl/examples/track-5.10

#!/usr/bin/perl

use strict;
use warnings;

use lib 'blib/lib';
use Regexp::Assemble;

my $r = Regexp::Assemble->new->track(1)->add(qw(foo? bar{2} [Rr]at));

for my $w (qw(this food is rather barren)) {
        if ($w =~ /$r/) {
                print "$w matched by ", $r->source($^R), $/;
        }
        else {
                print "$w no match\n";
        }
}

Generated by dwww version 1.15 on Wed May 22 21:47:08 CEST 2024.