Chris@16: /*=============================================================================
Chris@16:     Copyright (c) 2001-2011 Joel de Guzman
Chris@16:     Copyright (c) 2001-2011 Hartmut Kaiser
Chris@16: 
Chris@16:     Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16:     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: =============================================================================*/
Chris@16: #if !defined(SPIRIT_EXPECT_APRIL_29_2007_0445PM)
Chris@16: #define SPIRIT_EXPECT_APRIL_29_2007_0445PM
Chris@16: 
Chris@16: #if defined(_MSC_VER)
Chris@16: #pragma once
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/spirit/home/qi/operator/sequence_base.hpp>
Chris@16: #include <boost/spirit/home/qi/detail/expect_function.hpp>
Chris@16: #include <boost/spirit/home/qi/meta_compiler.hpp>
Chris@16: #include <boost/spirit/home/support/has_semantic_action.hpp>
Chris@16: #include <boost/spirit/home/support/handles_container.hpp>
Chris@16: #include <boost/spirit/home/support/info.hpp>
Chris@16: #include <stdexcept>
Chris@16: 
Chris@16: namespace boost { namespace spirit
Chris@16: {
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     // Enablers
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     template <>
Chris@16:     struct use_operator<qi::domain, proto::tag::greater> // enables >
Chris@16:       : mpl::true_ {};
Chris@16: 
Chris@16:     template <>
Chris@16:     struct flatten_tree<qi::domain, proto::tag::greater> // flattens >
Chris@16:       : mpl::true_ {};
Chris@16: }}
Chris@16: 
Chris@16: namespace boost { namespace spirit { namespace qi
Chris@16: {
Chris@16:     template <typename Iterator>
Chris@16:     struct expectation_failure : std::runtime_error
Chris@16:     {
Chris@16:         expectation_failure(Iterator first_, Iterator last_, info const& what)
Chris@16:           : std::runtime_error("boost::spirit::qi::expectation_failure")
Chris@16:           , first(first_), last(last_), what_(what)
Chris@16:         {}
Chris@16:         ~expectation_failure() throw() {}
Chris@16: 
Chris@16:         Iterator first;
Chris@16:         Iterator last;
Chris@16:         info what_;
Chris@16:     };
Chris@16: 
Chris@16:     template <typename Elements>
Chris@16:     struct expect : sequence_base<expect<Elements>, Elements>
Chris@16:     {
Chris@16:         friend struct sequence_base<expect<Elements>, Elements>;
Chris@16: 
Chris@16:         expect(Elements const& elements)
Chris@16:           : sequence_base<expect<Elements>, Elements>(elements) {}
Chris@16: 
Chris@16:     private:
Chris@16: 
Chris@16:         template <typename Iterator, typename Context, typename Skipper>
Chris@16:         static detail::expect_function<
Chris@16:             Iterator, Context, Skipper
Chris@16:           , expectation_failure<Iterator> >
Chris@16:         fail_function(
Chris@16:             Iterator& first, Iterator const& last
Chris@16:           , Context& context, Skipper const& skipper)
Chris@16:         {
Chris@16:             return detail::expect_function<
Chris@16:                 Iterator, Context, Skipper, expectation_failure<Iterator> >
Chris@16:                 (first, last, context, skipper);
Chris@16:         }
Chris@16: 
Chris@16:         std::string id() const { return "expect"; }
Chris@16:     };
Chris@16: 
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     // Parser generators: make_xxx function (objects)
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     template <typename Elements, typename Modifiers>
Chris@16:     struct make_composite<proto::tag::greater, Elements, Modifiers>
Chris@16:       : make_nary_composite<Elements, expect>
Chris@16:     {};
Chris@16: }}}
Chris@16: 
Chris@16: namespace boost { namespace spirit { namespace traits
Chris@16: {
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     template <typename Elements>
Chris@16:     struct has_semantic_action<qi::expect<Elements> >
Chris@16:       : nary_has_semantic_action<Elements> {};
Chris@16: 
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     template <typename Elements, typename Attribute, typename Context
Chris@16:       , typename Iterator>
Chris@16:     struct handles_container<qi::expect<Elements>, Attribute, Context
Chris@16:           , Iterator>
Chris@16:       : mpl::true_ {};
Chris@16: }}}
Chris@16: 
Chris@16: #endif