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/* 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.
*
*/
#ifndef COMMON_HASH_STR_H
#define COMMON_HASH_STR_H
#include "hashmap.h"
#include "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
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