A non-regex version. 
sub validator
{
    my $string = shift;

    my @chunks = map { [ split '' ] } $string =~ /(?=(...))./g;
    @$_ = sort @$_ for @chunks;
    my %count;
    for (map { join '', @$_ } @chunks)
    {
        return if $count{$_}++;
    }

    return 1;
}

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Being right, does not endow the right to be rude; politeness costs nothing.
Being unknowing, is not the same as being stupid.
Expressing a contrary opinion, whether to the individual or the group, is more often a sign of deeper thought than of cantankerous belligerence.
Do not mistake your goals as the only goals; your opinion as the only opinion; your confidence as correctness. Saying you know better is not the same as explaining you know better.

In reply to Re: Regex Help : Group in Strings by dragonchild
in thread Regex Help : Group in Strings by artist

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