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