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/*=============================================================================
Copyright (c) 2001-2011 Joel de Guzman
Copyright (c) 2001-2011 Hartmut Kaiser
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_APRIL_29_2007_0445PM)
#define SPIRIT_EXPECT_APRIL_29_2007_0445PM
#if defined(_MSC_VER)
#pragma once
#endif
#include <boost/spirit/home/qi/operator/sequence_base.hpp>
#include <boost/spirit/home/qi/detail/expect_function.hpp>
#include <boost/spirit/home/qi/meta_compiler.hpp>
#include <boost/spirit/home/support/has_semantic_action.hpp>
#include <boost/spirit/home/support/handles_container.hpp>
#include <boost/spirit/home/support/info.hpp>
#include <stdexcept>
namespace boost { namespace spirit
{
///////////////////////////////////////////////////////////////////////////
// Enablers
///////////////////////////////////////////////////////////////////////////
template <>
struct use_operator<qi::domain, proto::tag::greater> // enables >
: mpl::true_ {};
template <>
struct flatten_tree<qi::domain, proto::tag::greater> // flattens >
: mpl::true_ {};
}}
namespace boost { namespace spirit { namespace qi
{
template <typename Iterator>
struct expectation_failure : std::runtime_error
{
expectation_failure(Iterator first, Iterator last, info const& what)
: std::runtime_error("boost::spirit::qi::expectation_failure")
, first(first), last(last), what_(what)
{}
~expectation_failure() throw() {}
Iterator first;
Iterator last;
info what_;
};
template <typename Elements>
struct expect : sequence_base<expect<Elements>, Elements>
{
friend struct sequence_base<expect<Elements>, Elements>;
expect(Elements const& elements)
: sequence_base<expect<Elements>, Elements>(elements) {}
private:
template <typename Iterator, typename Context, typename Skipper>
static detail::expect_function<
Iterator, Context, Skipper
, expectation_failure<Iterator> >
fail_function(
Iterator& first, Iterator const& last
, Context& context, Skipper const& skipper)
{
return detail::expect_function<
Iterator, Context, Skipper, expectation_failure<Iterator> >
(first, last, context, skipper);
}
std::string id() const { return "expect"; }
};
///////////////////////////////////////////////////////////////////////////
// Parser generators: make_xxx function (objects)
///////////////////////////////////////////////////////////////////////////
template <typename Elements, typename Modifiers>
struct make_composite<proto::tag::greater, Elements, Modifiers>
: make_nary_composite<Elements, expect>
{};
}}}
namespace boost { namespace spirit { namespace traits
{
///////////////////////////////////////////////////////////////////////////
template <typename Elements>
struct has_semantic_action<qi::expect<Elements> >
: nary_has_semantic_action<Elements> {};
///////////////////////////////////////////////////////////////////////////
template <typename Elements, typename Attribute, typename Context
, typename Iterator>
struct handles_container<qi::expect<Elements>, Attribute, Context
, Iterator>
: mpl::true_ {};
}}}
#endif
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