85 lines
3.0 KiB
Plaintext
85 lines
3.0 KiB
Plaintext
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/*=============================================================================
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Copyright (c) 2001-2003 Joel de Guzman
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Copyright (c) 2002-2003 Martin Wille
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Copyright (c) 2003 Hartmut Kaiser
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http://spirit.sourceforge.net/
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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_HPP)
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#define BOOST_SPIRIT_GRAMMAR_HPP
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///////////////////////////////////////////////////////////////////////////////
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#if defined(BOOST_SPIRIT_THREADSAFE) && defined(BOOST_SPIRIT_SINGLE_GRAMMAR_INSTANCE)
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#undef BOOST_SPIRIT_SINGLE_GRAMMAR_INSTANCE
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#endif
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#include <boost/spirit/home/classic/namespace.hpp>
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#include <boost/spirit/home/classic/core/parser.hpp>
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#include <boost/spirit/home/classic/core/non_terminal/parser_context.hpp>
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#include <boost/spirit/home/classic/core/non_terminal/impl/grammar.ipp>
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///////////////////////////////////////////////////////////////////////////////
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namespace boost { namespace spirit {
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BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN
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///////////////////////////////////////////////////////////////////////////////
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//
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// grammar class
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//
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///////////////////////////////////////////////////////////////////////////////
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template <typename DerivedT, typename ContextT = parser_context<> >
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struct grammar
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: public parser<DerivedT>
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, public ContextT::base_t
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, public context_aux<ContextT, DerivedT>
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BOOST_SPIRIT_GRAMMAR_ID
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{
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typedef grammar<DerivedT, ContextT> self_t;
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typedef DerivedT const& embed_t;
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typedef typename ContextT::context_linker_t context_t;
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typedef typename context_t::attr_t attr_t;
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template <typename ScannerT>
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struct result
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{
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typedef typename match_result<ScannerT, attr_t>::type type;
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};
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grammar() {}
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~grammar() { impl::grammar_destruct(this); }
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template <typename ScannerT>
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typename parser_result<self_t, ScannerT>::type
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parse_main(ScannerT const& scan) const
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{ return impl::grammar_parser_parse<0>(this, scan); }
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template <typename ScannerT>
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typename parser_result<self_t, ScannerT>::type
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parse(ScannerT const& scan) const
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{
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typedef typename parser_result<self_t, ScannerT>::type result_t;
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typedef parser_scanner_linker<ScannerT> scanner_t;
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BOOST_SPIRIT_CONTEXT_PARSE(scan, *this, scanner_t, context_t, result_t)
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}
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template <int N>
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impl::entry_grammar<DerivedT, N, ContextT>
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use_parser() const
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{ return impl::entry_grammar<DerivedT, N, ContextT>( this->derived()); }
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BOOST_SPIRIT_GRAMMAR_STATE
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};
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///////////////////////////////////////////////////////////////////////////////
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BOOST_SPIRIT_CLASSIC_NAMESPACE_END
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}} // namespace BOOST_SPIRIT_CLASSIC_NS
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#undef BOOST_SPIRIT_GRAMMAR_ID
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#undef BOOST_SPIRIT_GRAMMAR_STATE
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#endif
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