Building the hash programmatically would be ani nteresting brain teaser.Here is the worst way to do it: my @strings = (grep /[acgmt]{2}/, ('aa' .. 'tt'),
grep /[acgmt]{3}/, ('aaa' .. 'ttt'),
grep /[acgmt]{4}/, ('aaaa' .. 'tttt'));
my %sort_cache;
for my $key (@strings) {
$sort_cache{$key} = join '',sort split('',$key);
}
Hey, don't take this seriously ;-) it does the job but it's so inefficient it's scary. Guillaume
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