comparison DEPENDENCIES/generic/include/boost/spirit/home/x3/operator/alternative.hpp @ 102:f46d142149f5

Whoops, finish that update

+/*=============================================================================
+    Copyright (c) 2001-2014 Joel de Guzman
+
+    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(SPIRIT_ALTERNATIVE_JAN_07_2013_1131AM)
+#define SPIRIT_ALTERNATIVE_JAN_07_2013_1131AM
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#include <boost/spirit/home/x3/support/traits/attribute_of.hpp>
+#include <boost/spirit/home/x3/core/parser.hpp>
+#include <boost/spirit/home/x3/operator/detail/alternative.hpp>
+
+namespace boost { namespace spirit { namespace x3
+{
+    template <typename Left, typename Right>
+    struct alternative : binary_parser<Left, Right, alternative<Left, Right>>
+    {
+        typedef binary_parser<Left, Right, alternative<Left, Right>> base_type;
+
+        alternative(Left left, Right right)
+            : base_type(left, right) {}
+
+        template <typename Iterator, typename Context, typename RContext>
+        bool parse(
+            Iterator& first, Iterator const& last
+          , Context const& context, RContext& rcontext, unused_type) const
+        {
+            return this->left.parse(first, last, context, rcontext, unused)
+               || this->right.parse(first, last, context, rcontext, unused);
+        }
+
+        template <typename Iterator, typename Context
+          , typename RContext, typename Attribute>
+        bool parse(
+            Iterator& first, Iterator const& last
+          , Context const& context, RContext& rcontext, Attribute& attr) const
+        {
+            if (detail::parse_alternative(this->left, first, last, context, rcontext, attr))
+                return true;
+            if (detail::parse_alternative(this->right, first, last, context, rcontext, attr))
+                return true;
+            return false;
+        }
+    };
+
+    template <typename Left, typename Right>
+    inline alternative<
+        typename extension::as_parser<Left>::value_type
+      , typename extension::as_parser<Right>::value_type>
+    operator|(Left const& left, Right const& right)
+    {
+        return {as_parser(left), as_parser(right)};
+    }
+}}}
+
+namespace boost { namespace spirit { namespace x3 { namespace traits
+{
+    template <typename Left, typename Right, typename Context>
+    struct attribute_of<x3::alternative<Left, Right>, Context>
+        : x3::detail::attribute_of_alternative<Left, Right, Context> {};
+}}}}
+
+#endif