Something like this?

use strict;
use warnings;

while(<DATA>) {
    $_ =~ s/(\D*)(\d*)(\D*)(\d*)/$3$2$4$1/g;
    print $_;
}

__DATA__
AAAAAAAAAA1111BBBBBB222222
BBBBBBBBBB2222CCCCCC333333
CCCCCCCCCC3333DDDDDD444444

[download]

outputs:

BBBBBB1111222222AAAAAAAAAA
CCCCCC2222333333BBBBBBBBBB
DDDDDD3333444444CCCCCCCCCC

[download]

In reply to Re: Seeking an Enlightened Path (Parsing, Translating, Translocating) by olus
in thread Seeking an Enlightened Path (Parsing, Translating, Translocating) by nanotasher

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