137 lines
4.9 KiB
C++
137 lines
4.9 KiB
C++
// Copyright (c) 2001-2011 Joel de Guzman
|
|
// Copyright (c) 2001-2011 Hartmut Kaiser
|
|
//
|
|
// 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_KARMA_GRAMMAR_MAR_05_2007_0542PM)
|
|
#define BOOST_SPIRIT_KARMA_GRAMMAR_MAR_05_2007_0542PM
|
|
|
|
#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/karma/domain.hpp>
|
|
#include <boost/spirit/home/karma/nonterminal/rule.hpp>
|
|
#include <boost/spirit/home/karma/nonterminal/nonterminal_fwd.hpp>
|
|
#include <boost/spirit/home/karma/reference.hpp>
|
|
#include <boost/noncopyable.hpp>
|
|
#include <boost/proto/extends.hpp>
|
|
#include <boost/proto/traits.hpp>
|
|
#include <boost/type_traits/is_same.hpp>
|
|
|
|
namespace boost { namespace spirit { namespace karma
|
|
{
|
|
template <
|
|
typename OutputIterator, typename T1, typename T2, typename T3
|
|
, typename T4>
|
|
struct grammar
|
|
: proto::extends<
|
|
typename proto::terminal<
|
|
reference<rule<OutputIterator, T1, T2, T3, T4> const>
|
|
>::type
|
|
, grammar<OutputIterator, T1, T2, T3, T4>
|
|
>
|
|
, generator<grammar<OutputIterator, T1, T2, T3, T4> >
|
|
, noncopyable
|
|
{
|
|
typedef OutputIterator iterator_type;
|
|
typedef rule<OutputIterator, T1, T2, T3, T4> start_type;
|
|
typedef typename start_type::properties properties;
|
|
typedef typename start_type::sig_type sig_type;
|
|
typedef typename start_type::locals_type locals_type;
|
|
typedef typename start_type::delimiter_type delimiter_type;
|
|
typedef typename start_type::encoding_type encoding_type;
|
|
typedef grammar<OutputIterator, 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 Unused>
|
|
struct attribute
|
|
{
|
|
typedef typename start_type::attr_type type;
|
|
};
|
|
|
|
// the output iterator is always wrapped by karma
|
|
typedef detail::output_iterator<OutputIterator, properties>
|
|
output_iterator;
|
|
|
|
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 Delimiter, typename Attribute>
|
|
bool generate(output_iterator& sink, Context& context
|
|
, Delimiter const& delim, Attribute const& attr) const
|
|
{
|
|
return this->proto_base().child0.generate(
|
|
sink, context, delim, attr);
|
|
}
|
|
|
|
template <typename Context>
|
|
info what(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/karma/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<
|
|
karma::grammar<IteratorA, T1, T2, T3, T4>, Attribute, Context
|
|
, IteratorB>
|
|
: detail::nonterminal_handles_container<
|
|
typename attribute_of<
|
|
karma::grammar<IteratorA, T1, T2, T3, T4>
|
|
, Context, IteratorB
|
|
>::type, Attribute>
|
|
{};
|
|
}}}
|
|
|
|
#endif
|