1 files changed, 113 insertions, 0 deletions
diff --git a/boost/spirit/home/qi/directive/expect.hpp b/boost/spirit/home/qi/directive/expect.hpp
new file mode 100644
index 0000000000..7892c9c32d
--- /dev/null
+++ b/boost/spirit/home/qi/directive/expect.hpp
@@ -0,0 +1,113 @@
+/*=============================================================================
+Copyright (c) 2016 Frank Hein, maxence business consulting gmbh
+
+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_EXPECT_JULY_13_2016)
+#define SPIRIT_EXPECT_JULY_13_2016
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#include <boost/spirit/home/qi/meta_compiler.hpp>
+#include <boost/spirit/home/support/has_semantic_action.hpp>
+#include <boost/spirit/home/qi/detail/attributes.hpp>
+#include <boost/spirit/home/qi/detail/expectation_failure.hpp>
+#include <boost/spirit/home/support/common_terminals.hpp>
+#include <boost/spirit/home/support/handles_container.hpp>
+#include <boost/spirit/home/support/unused.hpp>
+#include <boost/spirit/home/support/info.hpp>
+
+namespace boost { namespace spirit {
+    ///////////////////////////////////////////////////////////////////////////
+    // Enablers
+    ///////////////////////////////////////////////////////////////////////////
+    template <>
+    struct use_directive<qi::domain, tag::expect> // enables expect[p]
+        : mpl::true_ {};
+}}
+
+namespace boost { namespace spirit { namespace qi {
+
+#ifndef BOOST_SPIRIT_NO_PREDEFINED_TERMINALS
+    using spirit::expect;
+#endif
+    using spirit::expect_type;
+
+    template <typename Subject>
+    struct expect_directive : unary_parser<expect_directive<Subject> >
+    {
+        typedef result_of::compile<domain, Subject> subject_type;
+
+        template <typename Context, typename Iterator>
+        struct attribute
+        {
+            typedef traits::attribute_of<subject_type, Context, Iterator>
+                type;
+        };
+
+        expect_directive(Subject const& subject_) : subject(subject_) {}
+
+        template <typename Iterator, typename Context
+            , typename Skipper, typename Attribute>
+        bool parse(Iterator& first, Iterator const& last
+            , Context& context, Skipper const& skipper
+            , Attribute& attr_) const
+        {
+            typedef expectation_failure<Iterator> exception;
+
+            if (!subject.parse(first, last, context, skipper, attr_))
+            {
+                boost::throw_exception(
+                    exception(first, last, subject.what(context)));
+#if defined(BOOST_NO_EXCEPTIONS)
+                return false;            // for systems not supporting exceptions
+#endif
+            }
+            return true;
+        }
+
+        template <typename Context>
+        info what(Context& context) const
+        {
+            return info("expect", subject.what(context));
+        }
+
+        Subject subject;
+    };
+
+    ///////////////////////////////////////////////////////////////////////////
+    // Parser generators: make_xxx function (objects)
+    ///////////////////////////////////////////////////////////////////////////
+    template <typename Subject, typename Modifiers>
+    struct make_directive<tag::expect, Subject, Modifiers>
+    {
+        typedef expect_directive<Subject> result_type;
+        
+        result_type operator()
+            (unused_type, Subject const& subject, unused_type) const
+        {
+            return result_type(subject);
+        }
+    };
+
+}}}
+
+namespace boost { namespace spirit { namespace traits {
+    ///////////////////////////////////////////////////////////////////////////
+    template <typename Subject>
+    struct has_semantic_action<qi::expect_directive<Subject> >
+        : unary_has_semantic_action<Subject> {};
+
+    ///////////////////////////////////////////////////////////////////////////
+    template <typename Subject, typename Attribute
+        , typename Context, typename Iterator>
+    struct handles_container<
+        qi::expect_directive<Subject>, Attribute, Context, Iterator
+    >
+        : unary_handles_container<Subject, Attribute, Context, Iterator> {};
+}}}
+
+#endif