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103 lines
3.5 KiB
103 lines
3.5 KiB
/*============================================================================= |
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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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#if !defined(SPIRIT_EXPECT_APRIL_29_2007_0445PM) |
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#define SPIRIT_EXPECT_APRIL_29_2007_0445PM |
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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/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 <stdexcept> |
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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 Iterator> |
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struct expectation_failure : std::runtime_error |
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{ |
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expectation_failure(Iterator first, Iterator last, info const& what) |
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: std::runtime_error("boost::spirit::qi::expectation_failure") |
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, first(first), last(last), what_(what) |
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{} |
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~expectation_failure() throw() {} |
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Iterator first; |
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Iterator last; |
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info what_; |
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}; |
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template <typename Elements> |
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struct expect : sequence_base<expect<Elements>, Elements> |
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{ |
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friend struct sequence_base<expect<Elements>, Elements>; |
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expect(Elements const& elements) |
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: sequence_base<expect<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"; } |
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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> |
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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<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<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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