while($allseq =~ /(ct(?:a|g)a(?:c|t))(?:.{$len})/g)
  {push(@array, $1);}

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$len beeing the length of a word. I always get only the first encounter but never all hits? Why is it so? I guess it has something to do with $len because without it I get all encounters. Thank you in advance.

In reply to Regex /g and interpolated lengths by Anonymous Monk

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