Chris@16: /*=============================================================================
Chris@16:     Copyright (c) 2001-2011 Joel de Guzman
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(BOOST_SPIRIT_SUCCESS_HANDLER_FEBRUARY_25_2011_1051AM)
Chris@16: #define BOOST_SPIRIT_SUCCESS_HANDLER_FEBRUARY_25_2011_1051AM
Chris@16: 
Chris@16: #if defined(_MSC_VER)
Chris@16: #pragma once
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/spirit/home/qi/nonterminal/rule.hpp>
Chris@16: #include <boost/function.hpp>
Chris@16: 
Chris@16: namespace boost { namespace spirit { namespace qi
Chris@16: {
Chris@16:     template <
Chris@16:         typename Iterator, typename Context
Chris@16:       , typename Skipper, typename F
Chris@16:     >
Chris@16:     struct success_handler
Chris@16:     {
Chris@16:         typedef function<
Chris@16:             bool(Iterator& first, Iterator const& last
Chris@16:               , Context& context
Chris@16:               , Skipper const& skipper
Chris@16:             )>
Chris@16:         function_type;
Chris@16: 
Chris@16:         success_handler(function_type subject_, F f_)
Chris@16:           : subject(subject_)
Chris@16:           , f(f_)
Chris@16:         {
Chris@16:         }
Chris@16: 
Chris@16:         bool operator()(
Chris@16:             Iterator& first, Iterator const& last
Chris@16:           , Context& context, Skipper const& skipper) const
Chris@16:         {
Chris@16:             Iterator i = first;
Chris@16:             bool r = subject(i, last, context, skipper);
Chris@16:             if (r)
Chris@16:             {
Chris@16:                 typedef
Chris@16:                     fusion::vector<
Chris@16:                         Iterator&
Chris@16:                       , Iterator const&
Chris@16:                       , Iterator const&>
Chris@16:                 params;
Chris@16:                 skip_over(first, last, skipper);
Chris@16:                 params args(first, last, i);
Chris@16:                 f(args, context);
Chris@16: 
Chris@16:                 first = i;
Chris@16:             }
Chris@16:             return r;
Chris@16:         }
Chris@16: 
Chris@16:         function_type subject;
Chris@16:         F f;
Chris@16:     };
Chris@16: 
Chris@16:     template <
Chris@16:         typename Iterator, typename T0, typename T1, typename T2
Chris@16:       , typename F>
Chris@16:     void on_success(rule<Iterator, T0, T1, T2>& r, F f)
Chris@16:     {
Chris@16:         typedef rule<Iterator, T0, T1, T2> rule_type;
Chris@16: 
Chris@16:         typedef
Chris@16:             success_handler<
Chris@16:                 Iterator
Chris@16:               , typename rule_type::context_type
Chris@16:               , typename rule_type::skipper_type
Chris@16:               , F>
Chris@16:         success_handler;
Chris@16:         r.f = success_handler(r.f, f);
Chris@16:     }
Chris@16: }}}
Chris@16: 
Chris@16: #endif