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