Sounds like a job for Mr. Pos. 
#!/usr/bin/perl

use strict;
use warnings;

my $w = 'jigglewort';

do {my $t = $w; pos ($t) = $_; $t =~ s/\G(.)(.)/$2$1/; print "$t\n"}
    for 0 .. length ($w) - 2;

__END__
ijgglewort
jgiglewort
jigglewort
jiglgewort
jiggelwort
jigglweort
jiggleowrt
jigglewrot
jigglewotr

[download]

Abigail

In reply to Re: YET another regexp puzzle by Abigail-II
in thread YET another regexp puzzle by carric

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