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( #3333=superdoc: print w/replies, xml ) Need Help??
Well then, I'd do it like that
my @lst = qw( A,G AG,CT TC,CA GAT,CGA CGAT,TG ,G ACGT X,A AA,G AC,GGC ATGA,TGG ATCXG,AAC ATA,TG GTA,YC); for (@lst) { my $good = do { m/^ [ATCG]+ , [ATCG]+ $/x and not grep m/(.) .* \1/x, split ','; }; print $_, $good ? ' good' : ' bad', "\n"; }
A,G good AG,CT good TC,CA good GAT,CGA good CGAT,TG good ,G bad ACGT bad X,A bad AA,G bad AC,GGC bad ATGA,TGG bad ATCXG,AAC bad ATA,TG bad GTA,YC bad

In reply to Re^3: Regular expression for a comma separated string by Anonymous Monk
in thread Regular expression for a comma separated string by naderra

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