From: Ryan Davis <ryand-ruby@...>
Date: 2007-11-17T02:58:38+09:00
Subject: Re: Alternative Ruby grammar


On Nov 16, 2007, at 07:54 , Eric Mahurin wrote:

> I looks like you have a unified lexer/parser.  With all of the ruby  
> parser
> dependent lexer states, I can see why this might be easier.  But,  
> this is
> probably also why you might be losing performance (and why you need
> memoization), right?  I'm guessing there might be some backtracking  
> needed?

PEGs take care of that rather efficiently.