All: I have a for-fun project that I am working on exploring various different parsers and their methods. So far I have looked at things like Parse::RecDescent, Parse::YAPP, Parse::Earley, and HOP::Parser. I had Perl6::Rules on my list, but it is my understanding that Pugs::Compiler::Rule is more up to date.
In any case, I was wondering if someone could provide me with an example of a mathematical expression parser (and evaluator). To properly compare to the others, it would need to handle the following operators +, - (left associative) *, /, % (left associative) ^ (right associative) handle parens 12 - (3 + 4) handle two functions sqrt() and abs() both of which must include the parens. If someone has time to do this for me, I would be appreciative. It might also serve as example documentation or cookbook ideas. I am specifically interested in examples that can be run in Perl 5 today without needing Pugs or Parrot. Cheers, Joshua Gatcomb a.k.a. Limbic~Region
