Re: [Boost-users] [Boost.Spirit] Skippers for sub-grammars

Subject: Re: [Boost-users] [Boost.Spirit] Skippers for sub-grammars
From: Vitaly Budovski (vbudovski+news_at_[hidden])
Date: 2010-10-22 08:58:03

On 22 October 2010 23:06, Hartmut Kaiser <hartmut.kaiser_at_[hidden]> wrote:
>> I've decided to break up my parser into sub-grammars to improve both the
>> readability and compile time. I'm now trying to specify a skip parser for
>> one of the sub-grammars, but I don't know how to do it. I'm familiar with
>> specifying a skip parser in the parse functions, but not in the grammar
>> itself. Could somebody please provide an example?
>> Thanks.
>
> You need to pass the skipper type to the subgrammar (see attached).
> Additionally you need to utilize phrase_parse() instead of parse to hand
> down a skipper instance.
>
> Regards Hartmut
> ---------------
> http://boost-spirit.com

Hi Hartmut,

Thank you very much for the reply. I do have another question though:
Is it possible for the top level grammar to have its own skipper? If
there are multiple sub-grammars, can they also have a different
skipper each? If not, I guess I would have to put all the possible
alternatives into the one skipper grammar, right?

Regards,

Vitaly