reg.hpp
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00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */ 00002 /* 00003 * Main authors: 00004 * Christian Schulte <schulte@gecode.org> 00005 * 00006 * Copyright: 00007 * Christian Schulte, 2008 00008 * 00009 * Last modified: 00010 * $Date: 2008-12-08 12:54:44 +0100 (Mon, 08 Dec 2008) $ by $Author: schulte $ 00011 * $Revision: 7995 $ 00012 * 00013 * This file is part of Gecode, the generic constraint 00014 * development environment: 00015 * http://www.gecode.org 00016 * 00017 * Permission is hereby granted, free of charge, to any person obtaining 00018 * a copy of this software and associated documentation files (the 00019 * "Software"), to deal in the Software without restriction, including 00020 * without limitation the rights to use, copy, modify, merge, publish, 00021 * distribute, sublicense, and/or sell copies of the Software, and to 00022 * permit persons to whom the Software is furnished to do so, subject to 00023 * the following conditions: 00024 * 00025 * The above copyright notice and this permission notice shall be 00026 * included in all copies or substantial portions of the Software. 00027 * 00028 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 00029 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 00030 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00031 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 00032 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 00033 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 00034 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00035 * 00036 */ 00037 00038 namespace Gecode { 00039 00040 template<class Char, class Traits> 00041 std::basic_ostream<Char,Traits>& 00042 REG::Exp::print(std::basic_ostream<Char,Traits>& os) const { 00043 if (this == NULL) 00044 return os << "[]"; 00045 switch (type) { 00046 case ET_SYMBOL: 00047 return os << "[" << data.symbol << "]"; 00048 case ET_STAR: 00049 { 00050 bool par = ((data.kids[0] != NULL) && 00051 ((data.kids[0]->type == ET_CONC) || 00052 (data.kids[0]->type == ET_OR))); 00053 return data.kids[0]->print(os << (par ? "*(" : "*")) 00054 << (par ? ")" : ""); 00055 } 00056 case ET_CONC: 00057 { 00058 bool par0 = ((data.kids[0] != NULL) && 00059 (data.kids[0]->type == ET_OR)); 00060 std::ostream& os1 = data.kids[0]->print(os << (par0 ? "(" : "")) 00061 << (par0 ? ")+" : "+"); 00062 bool par1 = ((data.kids[1] != NULL) && 00063 (data.kids[1]->type == ET_OR)); 00064 return data.kids[1]->print(os1 << (par1 ? "(" : "") ) 00065 << (par1 ? ")" : ""); 00066 } 00067 case ET_OR: 00068 return data.kids[1]->print(data.kids[0]->print(os) << "|"); 00069 default: GECODE_NEVER; 00070 } 00071 GECODE_NEVER; 00072 return os; 00073 } 00074 00075 00076 template<class Char, class Traits> 00077 inline std::basic_ostream<Char,Traits>& 00078 REG::print(std::basic_ostream<Char,Traits>& os) const { 00079 std::basic_ostringstream<Char,Traits> s; 00080 s.copyfmt(os); s.width(0); 00081 e->print(s); 00082 return os << s.str(); 00083 } 00084 00085 template<class Char, class Traits> 00086 std::basic_ostream<Char,Traits>& 00087 operator <<(std::basic_ostream<Char,Traits>& os, const REG& r) { 00088 return r.print(os); 00089 } 00090 00091 } 00092 00093 // STATISTICS: minimodel-any 00094