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Re^3: Finding repeat sequences.

by Eily (Parson)
on Jun 19, 2013 at 12:40 UTC ( #1039773=note: print w/replies, xml ) Need Help??


in reply to Re^2: Finding repeat sequences.
in thread Finding repeat sequences.

Oh! I didn't think of that one. But I'm not sure why you have to do all those extra verifications. Since the input data is a repeated pattern, the length of that pattern is how little you can shift your string to the left and have a perfect match.

$s = 'abcdabcdabceabcdabcdabceab'; for (1..length($s)-1) { print substr($s,0,$_) and last if substr($s,$_) eq substr($s,0 +,length($s)-$_); }
abcdabcdabce

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