I'm looking for additional examples of using PetitParser beyond PPArithmeticParser and PPLambdaParser that are provided in the tests package and a couple of blog posts by Lukas? If anyone's willing to share theirs, it would be much appreciated.
Updated: https://github.com/NicolasPetton/jtalk/blob/master/st/parser.st
Updated: https://github.com/dmatveev/waste/blob/master/wastex.st
Keep 'em coming!