Alternative Ruby grammar ( & Treetop)

I just took a look at treetop as I hadn't heard of it before - I just
watched the screencast and all I can say is Wow, just Wow!

Take a look if you haven't:


On 11/16/07, Ryan Davis <> wrote:

On Nov 16, 2007, at 07:27 , M. Edward (Ed) Borasky wrote:

> Charles Oliver Nutter wrote:
>> What's your goal with this? At the moment, I don't like that
>> there's only two "mostly correct" parsers in existence: Ruby's
>> Bison-based parser and JRuby's Jay-based parser. They're both
>> pretty painful to work with and evolve.
> Isn't there also an ANTLR parser? What about Nathan Sobo's "Treetop"?

there is no complete ruby parser based on antlr yet that I know of.

treetop is not a ruby parser, it is a ruby parser generator (like