In terms of language-agnosticism, you can use Bison to calculate the tables (the hard part) and dump an xml file, then implement the machine yourself trivially.

In terms of language-agnosticism, you can use Bison to calculate the tables (the hard part) and dump an xml file, then implement the machine yourself trivially. I get really annoyed when people still complain about YACC while ignoring the four decades of practical improvement that Bison has given us if you bother to configure it.