libtext-diff-perl

'diff()' provides a basic set of services akin to the GNU 'diff' utility. It is not anywhere near as feature complete as GNU 'diff', but it is better integrated with Perl and available on all platforms. It is often faster than shelling out to a system's 'diff' executable for small files, and generally slower on larger files. Relies on Algorithm::Diff for, well, the algorithm. This may not produce the same exact diff as a system's local 'diff' executable, but it will be a valid diff and comprehensible by 'patch'. We haven't seen any differences between Algorithm::Diff's logic and GNU 'diff''s, but we have not examined them to make sure they are indeed identical. *Note*: If you don't want to import the 'diff' function, do one of the following: use Text::Diff (); require Text::Diff; That's a pretty rare occurrence, so 'diff()' is exported by default. If you pass a filename, but the file can't be read, then 'diff()' will 'croak'.