1 /* 2 * Copyright (C) 2008 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef WTF_Collator_h 30 #define WTF_Collator_h 31 32 #include <wtf/FastAllocBase.h> 33 #include <wtf/Noncopyable.h> 34 #include <wtf/PassOwnPtr.h> 35 #include <wtf/unicode/Unicode.h> 36 37 #if USE(ICU_UNICODE) && !UCONFIG_NO_COLLATION 38 struct UCollator; 39 #endif 40 41 namespace WTF { 42 43 class Collator { 44 WTF_MAKE_NONCOPYABLE(Collator); WTF_MAKE_FAST_ALLOCATED; 45 public: 46 enum Result { Equal = 0, Greater = 1, Less = -1 }; 47 48 Collator(const char* locale); // Parsing is lenient; e.g. language identifiers (such as "en-US") are accepted, too. 49 ~Collator(); 50 void setOrderLowerFirst(bool); 51 52 static PassOwnPtr<Collator> userDefault(); 53 54 Result collate(const ::UChar*, size_t, const ::UChar*, size_t) const; 55 56 private: 57 #if USE(ICU_UNICODE) && !UCONFIG_NO_COLLATION 58 void createCollator() const; 59 void releaseCollator(); 60 mutable UCollator* m_collator; 61 #endif 62 char* m_locale; 63 bool m_lowerFirst; 64 }; 65 } 66 67 using WTF::Collator; 68 69 #endif 70
