Re: [Boost-users] Cannot get Wave + Spirit Compile

Subject: Re: [Boost-users] Cannot get Wave + Spirit Compile
From: Alexander Feldman (alex_at_[hidden])
Date: 2011-08-29 10:22:04

On 08/29/2011 03:43 PM, Pekka Seppänen wrote:
> On 29.8.2011 12:07, Alexander Feldman wrote:
>> Hi,
>>
>> I have (I suppose) a beginner problem -- cannot make wave + spirit
>> compile. I think there is an iterator problem but I cannot understand
>> the compiler error. I am attaching a small example and the error output
>> - can somebody explain how to fix this? I have searched around a lot but
>> can't find an answer to that.
>>
> 
> Hi,
> 
> you can't directly pass Wave iterators to Spirit (as you're doing now by
> passing Wave's pp_iterator< .. > [the context_type::iterator_type] to Spirit's
> phrase_parse.).
> 
> The easiest way, I believe, is to simply iterate thru Wave's pp_iterator to
> generate a preprocessed string (so, instead of pushing your data to std::cout
> push it to std::stringstream etc.). After you've done that, pass that string
> to Spirit and it'll work.

Yeah, I tried your suggestion - it works. Problem is it is not very
elegant and also I cannot get access to the file/line # for the error
handling.

> 
> I guess you could write a ForwardIterator that would directly pass data from
> Wave to Spirit, but frankly speaking, I didn't even try that myself. Maybe try
> that after you've experimented with the Wave+Spirit combination a bit more?

I will try to figure out something. Maybe someone else has already done
that.

Thanks,

-- Alex

> 
> Br,
> 	Pekka
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