The first priority of Set::Scalar is to be a convenient interface to sets (as in: unordered colletions of Perl scalars.) While not designed to be slow or big, neither has it been designed to be fast or compact. Please see lib/Set/Scalar.pm for more information, once you have installed this module, "perldoc Set::Scalar" should work. -- firstname.lastname@example.org : Original author. email@example.com : Current maintainer.