dlvhex
2.5.0
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00001 /* dlvhex -- Answer-Set Programming with external interfaces. 00002 * Copyright (C) 2005-2007 Roman Schindlauer 00003 * Copyright (C) 2006-2015 Thomas Krennwallner 00004 * Copyright (C) 2009-2016 Peter Schüller 00005 * Copyright (C) 2011-2016 Christoph Redl 00006 * Copyright (C) 2015-2016 Tobias Kaminski 00007 * Copyright (C) 2015-2016 Antonius Weinzierl 00008 * 00009 * This file is part of dlvhex. 00010 * 00011 * dlvhex is free software; you can redistribute it and/or modify it 00012 * under the terms of the GNU Lesser General Public License as 00013 * published by the Free Software Foundation; either version 2.1 of 00014 * the License, or (at your option) any later version. 00015 * 00016 * dlvhex is distributed in the hope that it will be useful, but 00017 * WITHOUT ANY WARRANTY; without even the implied warranty of 00018 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00019 * Lesser General Public License for more details. 00020 * 00021 * You should have received a copy of the GNU Lesser General Public 00022 * License along with dlvhex; if not, write to the Free Software 00023 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 00024 * 02110-1301 USA. 00025 */ 00026 00034 #ifndef STRONG_NEGATION_PLUGIN__HPP_INCLUDED_1518 00035 #define STRONG_NEGATION_PLUGIN__HPP_INCLUDED_1518 00036 00037 #include "dlvhex2/PlatformDefinitions.h" 00038 #include "dlvhex2/PluginInterface.h" 00039 #include <set> 00040 00041 DLVHEX_NAMESPACE_BEGIN 00042 00044 class StrongNegationPlugin: 00045 public PluginInterface 00046 { 00047 public: 00048 // stored in ProgramCtx, accessed using getPluginData<StrongNegationPlugin>() 00049 class CtxData: 00050 public PluginData 00051 { 00052 public: 00054 bool enabled; 00055 00056 // predicate constants which were encountered in negative form and their arities (the same predicate may occur with multiple arities) 00057 typedef std::map<ID,std::set<unsigned> > PredicateArityMap; 00059 PredicateArityMap negPredicateArities; 00060 00061 // aux predicate constants and their positive counterparts 00062 typedef std::map<ID,ID> NegToPosMap; 00064 NegToPosMap negToPos; 00065 00070 PredicateMask myAuxiliaryPredicateMask; 00071 00072 CtxData(); 00073 virtual ~CtxData() {}; 00074 }; 00075 00076 public: 00078 StrongNegationPlugin(); 00080 virtual ~StrongNegationPlugin(); 00081 00082 // output help message for this plugin 00083 virtual void printUsage(std::ostream& o) const; 00084 00085 // accepted options: --strongnegation-enable 00086 // 00087 // processes options for this plugin, and removes recognized options from pluginOptions 00088 // (do not free the pointers, the const char* directly come from argv) 00089 virtual void processOptions(std::list<const char*>& pluginOptions, ProgramCtx&); 00090 00091 // create parser modules that extend and the basic hex grammar 00092 virtual std::vector<HexParserModulePtr> createParserModules(ProgramCtx&); 00093 00094 // rewrite program by adding auxiliary constraints 00095 virtual PluginRewriterPtr createRewriter(ProgramCtx&); 00096 00097 // change model callback (print auxiliaries as negative atoms) 00098 virtual void setupProgramCtx(ProgramCtx&); 00099 00100 // no atoms! 00101 }; 00102 00103 DLVHEX_NAMESPACE_END 00104 #endif 00105 00106 // vim:expandtab:ts=4:sw=4: 00107 // mode: C++ 00108 // End: