Re: [boost] Announcing: xpressive

From: Joel de Guzman (joel_at_[hidden])
Date: 2003-11-17 02:41:46

Hartmut Kaiser <hartmutkaiser_at_[hidden]> wrote:
> Eric Niebler wrote:
> 
>> xpressive will differ from Spirit in that it will have
>> backtracking semantics. (Spirit has greedy semantics, and
>> does not do backtracking.)
> 
> But Spirit does backtracking!
> 
>> The project is still quite small. I have checked the source
>> code into the boost sandbox at boost-sandbox/boost/xpressive
>> for anybody who is interested.

I think Eric means: does not do exhaustive backtracking:

    *ch_p('a') >> ch_p('a');

Cheers,
-- 
Joel de Guzman
http://www.boost-consulting.com
http://spirit.sf.net