[grammarians] Comparison to RubyFront grammar

[Xue Yong Zhi]

>- What's the state of the RubyGrammar project? How much code can it
>parse today? (especially in light of the recent contributions)

As far as I know, the ruby grammar in the SVN and the one uploaded to 
antlr.org is very basic. Based on my experience, they can parse at most 5% 
of the ruby's stdlib.

>- How does it compare to the RubyFront grammar? I'm no grammarian, but
>at a glance that one appeared to be more complete, and was able to parse
>the entire stdlib (though I have no idea about accuracy).

As the author of rubyfront, I can assure you it can parse the entire stdlib 
and ROR:). Rigth now I am using it as the frontend of my xruby compiler and 
it works pretty well.

>- Is this project still being actively worked? If I have grammarians
>interested in helping, should I point them at rubygrammar or rubyfront?
>(I know of a few such folks inside and outside of Sun standing by)

I do not know if there is anyone still working on this project. It looks 
like the last SVN commit was 8 months ago, and this mailist has no 
activities for quite a few months.

As for rubyfront, everyone is welcome to change even fork it (I just did not 
feel the need myself so I did not check it into the SVN here). All the new 
code can be found at:

http://xruby.googlecode.com/svn/trunk/src/com/xruby/compiler/parser/

All the code is the 'parser' package is BSD licensed (I will clean the 
license mess in the code soon, do not let it stop you:))

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