BrowserUk, did you ever upload your code to CPAN?

In a related question the other day, ikegami posted a solution using String::LCSS_XS, which he later deleted. This led me to investigate what other modules which find longest common substrings are available on CPAN. Here is what I found:

  1. String::LCSS_XS
  2. Algorithm::LCSS
  3. String::LCSS
  4. Tree::Suffix

Note that there are other modules with similar names, but they relate to longest common subsequences.

String::LCSS_XS seems to be the best of the bunch. It has one reported bug, but the bug is simple to avoid, and there is even a potential patch.

The other 3 modules have reported functional bugs for which there are no specified workarounds or patches.

Algorithm::LCSS was last updated in 2003 (which was a magical year for LCSS modules, apparently). The author's last activity on CPAN (for other modules) was in 2008. Soon after that, 2 bugs were filed, but the author never responded to either one.

The POD for Tree::Suffix indicates that the author has ceased to maintain the module due to numerous bugs in an external dependency.

In reply to Re: A better implementation of LCSS? by toolic
in thread A better implementation of LCSS? by BrowserUk

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