From: Reece Dunn (msclrhd_at_[hidden])
Date: 2004-05-05 10:43:49
Joel de Guzman wrote:
>Arkadiy Vertleyb wrote:
>>"Joel de Guzman" wrote
>>>to start a new CVS branch for typeof/auto experimentations. This would
>>>involve not only Spirit but Phoenix as well. I have a feeling that this
>>>will take more than a week or two. Yet, I'm sure that the results would
>>>be gratifying, at the very least.
>>Actually, I do think that this should be done fast, since it is intended
>>close the gap (maybe a year or two) until the real typeof becomes
>Agreed. Let's do it!
I would also like to help, as I think that Spirit is an awesome library/tool
and would benefit greatly with auto/typeof support.
One question though: I have a parser where I have created several external
grammars to help modularize the grammar and employ the trick suggested in
the techniques section (c.f. sub-grammar):
using namespace boost::spirit;
struct identifier_parser: public sub_grammar< identifier_parser >
alternative< alpha_parser, chlit<> >,
kleene_alternative_t< alnum_parser, chlit<> >::type
( alpha_p | '_' ) >> *( alnum_p | '_' )
NOTE: This is using various type construction helpers.
Once you have a (sub-)rule like this, you can use it like:
rule_t<ScannerT> tagName = !( identifier >> ':' ) >> identifier;
I was wondering if this would cause any major problems when implemented with
the typeof/auto hack (since it could then be implemented as a grammar).
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