This provides a few utility functions for internal use.
takes a string and returns true if it looks like a module.
takes a string and returns true if it looks like a version.
Kenichi Ishigaki, <email@example.com>
This software is copyright (c) 2015 by Kenichi Ishigaki.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.