Perform diffs on files and record sets.
Perform diffs on files and record sets
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.