Initial Commit

2018-02-08 21:28:33 -05:00
commit 678c1d3966
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+/*=============================================================================
+    Copyright (c) 2001-2003 Joel de Guzman
+    Copyright (c) 2002-2003 Martin Wille
+    Copyright (c) 2003 Hartmut Kaiser
+    http://spirit.sourceforge.net/
+
+  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_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/home/classic/namespace.hpp>
+#include <boost/spirit/home/classic/core/parser.hpp>
+#include <boost/spirit/home/classic/core/non_terminal/parser_context.hpp>
+#include <boost/spirit/home/classic/core/non_terminal/impl/grammar.ipp>
+
+///////////////////////////////////////////////////////////////////////////////
+namespace boost { namespace spirit {
+
+BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN
+
+///////////////////////////////////////////////////////////////////////////////
+//
+//  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
+};
+
+///////////////////////////////////////////////////////////////////////////////
+BOOST_SPIRIT_CLASSIC_NAMESPACE_END
+
+}} // namespace BOOST_SPIRIT_CLASSIC_NS
+
+#undef BOOST_SPIRIT_GRAMMAR_ID
+#undef BOOST_SPIRIT_GRAMMAR_STATE
+#endif
+