From: Roger Pack <rogerpack2005@...>
Date: 2009-01-04T12:33:00+09:00
Subject: Re: racc 1.4.6 release

> there might be a few things your confused by. [1] is the link to the
> parse tree project page. PT is a C extension. RP uses racc which has a
> C extension to optimize its performance. A majority of racc is
> implemented in ruby.

So racc has an optional C extension to optimize its performance, and 
that one part is built into the base ruby distro [oddly].  I guess I 
could look into it more to know what the difference between the parser 
and compiler is. Cool.
Thanks.
-=r
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