/*============================================================================= | |
Copyright (c) 2001-2011 Joel de Guzman | |
Distributed under the Boost Software License, Version 1.0. (See accompanying | |
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
==============================================================================*/ | |
#if !defined(BOOST_SPIRIT_GRAMMAR_FEBRUARY_19_2007_0236PM) | |
#define BOOST_SPIRIT_GRAMMAR_FEBRUARY_19_2007_0236PM | |
#if defined(_MSC_VER) | |
#pragma once | |
#endif | |
#include <boost/spirit/home/support/unused.hpp> | |
#include <boost/spirit/home/support/info.hpp> | |
#include <boost/spirit/home/support/assert_msg.hpp> | |
#include <boost/spirit/home/qi/domain.hpp> | |
#include <boost/spirit/home/qi/nonterminal/rule.hpp> | |
#include <boost/spirit/home/qi/nonterminal/nonterminal_fwd.hpp> | |
#include <boost/spirit/home/qi/reference.hpp> | |
#include <boost/noncopyable.hpp> | |
#include <boost/type_traits/is_same.hpp> | |
namespace boost { namespace spirit { namespace qi | |
{ | |
template < | |
typename Iterator, typename T1, typename T2, typename T3 | |
, typename T4> | |
struct grammar | |
: proto::extends< | |
typename proto::terminal< | |
reference<rule<Iterator, T1, T2, T3, T4> const> | |
>::type | |
, grammar<Iterator, T1, T2, T3, T4> | |
> | |
, parser<grammar<Iterator, T1, T2, T3, T4> > | |
, noncopyable | |
{ | |
typedef Iterator iterator_type; | |
typedef rule<Iterator, T1, T2, T3, T4> start_type; | |
typedef typename start_type::sig_type sig_type; | |
typedef typename start_type::locals_type locals_type; | |
typedef typename start_type::skipper_type skipper_type; | |
typedef typename start_type::encoding_type encoding_type; | |
typedef grammar<Iterator, T1, T2, T3, T4> base_type; | |
typedef reference<start_type const> reference_; | |
typedef typename proto::terminal<reference_>::type terminal; | |
static size_t const params_size = start_type::params_size; | |
template <typename Context, typename Iterator_> | |
struct attribute | |
{ | |
typedef typename start_type::attr_type type; | |
}; | |
grammar( | |
start_type const& start | |
, std::string const& name_ = "unnamed-grammar") | |
: proto::extends<terminal, base_type>(terminal::make(reference_(start))) | |
, name_(name_) | |
{} | |
// This constructor is used to catch if the start rule is not | |
// compatible with the grammar. | |
template <typename Iterator_, | |
typename T1_, typename T2_, typename T3_, typename T4_> | |
grammar( | |
rule<Iterator_, T1_, T2_, T3_, T4_> const& | |
, std::string const& = "unnamed-grammar") | |
{ | |
// If you see the assertion below failing then the start rule | |
// passed to the constructor of the grammar is not compatible with | |
// the grammar (i.e. it uses different template parameters). | |
BOOST_SPIRIT_ASSERT_MSG( | |
(is_same<start_type, rule<Iterator_, T1_, T2_, T3_, T4_> >::value) | |
, incompatible_start_rule, (rule<Iterator_, T1_, T2_, T3_, T4_>)); | |
} | |
std::string name() const | |
{ | |
return name_; | |
} | |
void name(std::string const& str) | |
{ | |
name_ = str; | |
} | |
template <typename Context, typename Skipper, typename Attribute> | |
bool parse(Iterator& first, Iterator const& last | |
, Context& context, Skipper const& skipper | |
, Attribute& attr) const | |
{ | |
return this->proto_base().child0.parse( | |
first, last, context, skipper, attr); | |
} | |
template <typename Context> | |
info what(Context& context) const | |
{ | |
return info(name_); | |
} | |
// bring in the operator() overloads | |
start_type const& get_parameterized_subject() const | |
{ return this->proto_base().child0.ref.get(); } | |
typedef start_type parameterized_subject_type; | |
#include <boost/spirit/home/qi/nonterminal/detail/fcall.hpp> | |
std::string name_; | |
}; | |
}}} | |
namespace boost { namespace spirit { namespace traits | |
{ | |
/////////////////////////////////////////////////////////////////////////// | |
template < | |
typename IteratorA, typename IteratorB, typename Attribute | |
, typename Context, typename T1, typename T2, typename T3, typename T4> | |
struct handles_container< | |
qi::grammar<IteratorA, T1, T2, T3, T4>, Attribute, Context, IteratorB> | |
: traits::is_container< | |
typename attribute_of< | |
qi::grammar<IteratorA, T1, T2, T3, T4>, Context, IteratorB | |
>::type | |
> | |
{}; | |
}}} | |
#endif |