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