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