Algorithm::Diff is a perl module that provides an interface to compute
the difference between two files, two strings, or any other two lists
of things.  It uses an intelligent algorithm similar/identical to the
one used by classical Unix diff(1).  It is guaranteed to find the
*smallest possible* set of differences.

Author: Ned Konz <perl@bike-nomad.com>
WWW: http://search.cpan.org/dist/Algorithm-Diff/