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Ruta de la carpeta: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\references\boost_1_35_0\boost\spirit\actor.hpp
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/*============================================================================= Copyright (c) 2003 Jonathan de Halleux (dehalleux@pelikhan.com) http://spirit.sourceforge.net/ Use, modification and distribution is subject to 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) =============================================================================*/ #ifndef BOOST_SPIRIT_ACTOR_HPP #define BOOST_SPIRIT_ACTOR_HPP #include
/////////////////////////////////////////////////////////////////////////////// // // Actors documentation and convention // // Actors // // Actors are predefined semantic action functors. They are used to do an // action on the parse result if the parser has had a successful match. An // example of actor is the append_actor described in the Spirit // documentation. // // The action takes place through a call to the () operator: single argument // () operator call for character parsers and two argument (first,last) call // for phrase parsers. Actors should implement at least one of the two () // operator. // // Actor instances are not created direcly since they usually involve a // number of template parameters. Instead generator functions ("helper // functions") are provided to generate actors according to their arguments. // All helper functions have the "_a" suffix. For example, append_actor is // created using the append_a function. // // Policy holder actors and policy actions // // A lot of actors need to store reference to one or more objects. For // example, actions on container need to store a reference to the container. // Therefore, this kind of actor have been broken down into // // - a action policy that does the action (act method), // - a policy holder actor that stores the references and feeds the act // method. // // Policy holder actors // // Policy holder have the following naming convention: //
_ >> *
>> !value >> actor // where member are the policy stored member, they can be of type: // // - ref, a reference, // - const_ref, a const reference, // - value, by value, // - empty, no stored members // - !value states if the policy uses the parse result or not. // // The available policy holder are enumerated below: // // - empty_actor, nothing stored, feeds parse result // - value_actor, 1 object stored by value, feeds value // - ref_actor, 1 reference stored, feeds ref // - ref_value_actor, 1 reference stored, feeds ref and parse result // // Doc. convention // // - ref is a reference to an object stored in a policy holder actor, // - value_ref,value1_ref, value2_ref are a const reference stored in a // policy holder actor, // - value is the parse result in the single argument () operator, // - first,last are the parse result in the two argument () operator // // Actors (generator functions) and quick description // // - assign_a(ref) assign parse result to ref // - assign_a(ref, value_ref) assign value_ref to ref // - increment_a(ref) increment ref // - decrement_a(ref) decrement ref // - push_back_a(ref) push back the parse result in ref // - push_back_a(ref, value_ref) push back value_ref in ref // - push_front_a(ref) push front the parse result in ref // - push_front_a(ref, value_ref) push front value_ref in ref // - insert_key_a(ref,value_ref) insert value_ref in ref using the // parse result as key // - insert_at_a(ref, key_ref) insert the parse result in ref at key_ref // - insert_at_a(ref, key_ref insert value_ref in ref at key_ref // , value_ref) // - assign_key_a(ref, value_ref) assign value_ref in ref using the // parse result as key // - erase_a(ref, key) erase data at key from ref // - clear_a(ref) clears ref // - swap_a(aref, bref) swaps aref and bref // /////////////////////////////////////////////////////////////////////////////// #include
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actor.hpp
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