/* ScummVM - Graphic Adventure Engine * * ScummVM is the legal property of its developers, whose names * are too numerous to list here. Please refer to the COPYRIGHT * file distributed with this source distribution. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * * $URL$ * $Id$ */ #ifndef COMMON_HASH_STR_H #define COMMON_HASH_STR_H #include "common/hashmap.h" #include "common/str.h" namespace Common { uint hashit(const char *str); uint hashit_lower(const char *str); // Generate a hash based on the lowercase version of the string inline uint hashit(const String &str) { return hashit(str.c_str()); } inline uint hashit_lower(const String &str) { return hashit_lower(str.c_str()); } // FIXME: The following functors obviously are not consistently named struct CaseSensitiveString_EqualTo { bool operator()(const String& x, const String& y) const { return x.equals(y); } }; struct CaseSensitiveString_Hash { uint operator()(const String& x) const { return hashit(x.c_str()); } }; struct IgnoreCase_EqualTo { bool operator()(const String& x, const String& y) const { return x.equalsIgnoreCase(y); } }; struct IgnoreCase_Hash { uint operator()(const String& x) const { return hashit_lower(x.c_str()); } }; // Specalization of the Hash functor for String objects. // We do case sensitve hashing here, because that is what // the default EqualTo is compatible with. If one wants to use // case insensitve hashing, then only because one wants to use // IgnoreCase_EqualTo, and then one has to specify a custom // hash anyway. template <> struct Hash<String> { uint operator()(const String& s) const { return hashit(s.c_str()); } }; template <> struct Hash<const char *> { uint operator()(const char *s) const { return hashit(s); } }; // String map -- by default case insensitive typedef HashMap<String, String, IgnoreCase_Hash, IgnoreCase_EqualTo> StringMap; } // End of namespace Common #endif