| /*============================================================================= |
| 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 |
