This is a package with a very simple finite automaton, or a finite state machine module.
You can build your own FSM object with it.
It includes a script to compile a text based state tables into new objects.
Install this module using CPAN, cf. https://www.cpan.org/modules/INSTALL.html
Copyright (C) 1998-2002, Randall Maas. All rights reserved. This package is free software; you can redistribute it and/or modify it under the same terms as Perl itself.