That's unfortunate... I have code that is using regexes on File::Map buffers under the assumption it was an efficient way to scan through a file. Maybe there's room for one more optimization that checks the length of what needs copied vs. the length of the source scalar? In the example, each iteration only needs to put a single character in $&.

In reply to Re^2: Are beheaded strings known to be slow? by NERDVANA
in thread Are beheaded strings known to be slow? by Anonymous Monk

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