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Diffstat (limited to 'devtools/create_titanic/hash-str.h')
-rw-r--r-- | devtools/create_titanic/hash-str.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/devtools/create_titanic/hash-str.h b/devtools/create_titanic/hash-str.h new file mode 100644 index 0000000000..b9f6d503f8 --- /dev/null +++ b/devtools/create_titanic/hash-str.h @@ -0,0 +1,86 @@ +/* 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 |