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- /*=============================================================================
- Copyright (c) 2001-2011 Joel de Guzman
- 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(BOOST_SPIRIT_SUCCESS_HANDLER_FEBRUARY_25_2011_1051AM)
- #define BOOST_SPIRIT_SUCCESS_HANDLER_FEBRUARY_25_2011_1051AM
- #if defined(_MSC_VER)
- #pragma once
- #endif
- #include <boost/spirit/home/qi/nonterminal/rule.hpp>
- #include <boost/function.hpp>
- namespace boost { namespace spirit { namespace qi
- {
- template <
- typename Iterator, typename Context
- , typename Skipper, typename F
- >
- struct success_handler
- {
- typedef function<
- bool(Iterator& first, Iterator const& last
- , Context& context
- , Skipper const& skipper
- )>
- function_type;
- success_handler(function_type subject_, F f_)
- : subject(subject_)
- , f(f_)
- {
- }
- bool operator()(
- Iterator& first, Iterator const& last
- , Context& context, Skipper const& skipper) const
- {
- Iterator i = first;
- bool r = subject(i, last, context, skipper);
- if (r)
- {
- typedef
- fusion::vector<
- Iterator&
- , Iterator const&
- , Iterator const&>
- params;
- skip_over(first, last, skipper);
- params args(first, last, i);
- f(args, context);
- first = i;
- }
- return r;
- }
- function_type subject;
- F f;
- };
- template <
- typename Iterator, typename T0, typename T1, typename T2
- , typename F>
- void on_success(rule<Iterator, T0, T1, T2>& r, F f)
- {
- typedef rule<Iterator, T0, T1, T2> rule_type;
- typedef
- success_handler<
- Iterator
- , typename rule_type::context_type
- , typename rule_type::skipper_type
- , F>
- success_handler;
- r.f = success_handler(r.f, f);
- }
- }}}
- #endif
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