Package algorithm-diff-rb18-0.4-1

This implementation is basically a Ruby conversion of the Perl Algorithm::Diff module in CPAN. Diff is an algorithm which computes the differences between two lists a and b. The resulting set of differences can be applied to a (also called "patching") to get b. This is also what the Unix command line tools "diff" and "patch" are able to do. diff.rb generates a "minimal diff". This means that the set of changes that should be applied to a to get b can not be fewer than those generated by diff.rb. diff.rb does not generate contextual diffs. Therefor, the diff can only be succesfully applied to a list exactly equal to to original a.