String::LCSS_XS has issues too.

It has an undocumented limitation: It only works on strings of bytes.

It has a bug: It only works when the input strings are stored in the UTF8=0 format.

(Going from memory, but a quick check seems to confirm the above.)

If you're ok with the limitation, the workaround for the bug is to call utf8::downgrade the inputs before calling the function.

An alternative is Algorithm::Diff. It's LCS functions also find the longuest common subsequence. I don't know much about the module. [That's something different.]

In reply to Re^2: Does String::LCSS work? by ikegami
in thread Does String::LCSS work? by BrowserUk

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