I am looking into doing simple HTML validition. I have found HTML::Validator on cpan, but I cannot use because we do not have lib-sgml installed on the boxes this will run on. We do have nsgml, and I like how it works. My question is this: other than HTML::Validator (unless there is a way to install it without lib-sgml) is there a standard perl way to validate HTML? Something that has been used and tested over the perl ages?