Initial Commit

2018-02-08 21:28:33 -05:00
commit 678c1d3966
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+/*=============================================================================
+    Copyright (c) 2002-2003 Joel de Guzman
+    Copyright (c) 2002-2003 Hartmut Kaiser
+    Copyright (c) 2003 Martin Wille
+    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_PARSER_TRAITS_IPP)
+#define BOOST_SPIRIT_PARSER_TRAITS_IPP
+
+#include <boost/spirit/home/classic/core/composite/operators.hpp>
+
+///////////////////////////////////////////////////////////////////////////////
+namespace boost { namespace spirit {
+
+BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN
+
+namespace impl
+{
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    struct parser_type_traits_base {
+
+        BOOST_STATIC_CONSTANT(bool, is_alternative = false);
+        BOOST_STATIC_CONSTANT(bool, is_sequence = false);
+        BOOST_STATIC_CONSTANT(bool, is_sequential_or = false);
+        BOOST_STATIC_CONSTANT(bool, is_intersection = false);
+        BOOST_STATIC_CONSTANT(bool, is_difference = false);
+        BOOST_STATIC_CONSTANT(bool, is_exclusive_or = false);
+        BOOST_STATIC_CONSTANT(bool, is_optional = false);
+        BOOST_STATIC_CONSTANT(bool, is_kleene_star = false);
+        BOOST_STATIC_CONSTANT(bool, is_positive = false);
+    };
+
+    template <typename ParserT>
+    struct parser_type_traits : public parser_type_traits_base {
+
+    //  no definition here, fallback for all not explicitly mentioned parser
+    //  types
+    };
+
+    template <typename A, typename B>
+    struct parser_type_traits<alternative<A, B> >
+    :   public parser_type_traits_base {
+
+        BOOST_STATIC_CONSTANT(bool, is_alternative = true);
+    };
+
+    template <typename A, typename B>
+    struct parser_type_traits<sequence<A, B> >
+    :   public parser_type_traits_base {
+
+        BOOST_STATIC_CONSTANT(bool, is_sequence = true);
+    };
+
+    template <typename A, typename B>
+    struct parser_type_traits<sequential_or<A, B> >
+    :   public parser_type_traits_base {
+
+        BOOST_STATIC_CONSTANT(bool, is_sequential_or = true);
+    };
+
+    template <typename A, typename B>
+    struct parser_type_traits<intersection<A, B> >
+    :   public parser_type_traits_base {
+
+        BOOST_STATIC_CONSTANT(bool, is_intersection = true);
+    };
+
+    template <typename A, typename B>
+    struct parser_type_traits<difference<A, B> >
+    :   public parser_type_traits_base {
+
+        BOOST_STATIC_CONSTANT(bool, is_difference = true);
+    };
+
+    template <typename A, typename B>
+    struct parser_type_traits<exclusive_or<A, B> >
+    :   public parser_type_traits_base {
+
+        BOOST_STATIC_CONSTANT(bool, is_exclusive_or = true);
+    };
+
+    template <typename S>
+    struct parser_type_traits<optional<S> >
+    :   public parser_type_traits_base {
+
+        BOOST_STATIC_CONSTANT(bool, is_optional = true);
+    };
+
+    template <typename S>
+    struct parser_type_traits<kleene_star<S> >
+    :   public parser_type_traits_base {
+
+        BOOST_STATIC_CONSTANT(bool, is_kleene_star = true);
+    };
+
+    template <typename S>
+    struct parser_type_traits<positive<S> >
+    :   public parser_type_traits_base {
+
+        BOOST_STATIC_CONSTANT(bool, is_positive = true);
+    };
+
+}   // namespace impl
+
+///////////////////////////////////////////////////////////////////////////////
+BOOST_SPIRIT_CLASSIC_NAMESPACE_END
+
+}} // namespace boost::spirit
+
+#endif // !defined(BOOST_SPIRIT_PARSER_TRAITS_IPP)