collationtailoring.cpp (3459B)
1 // © 2016 and later: Unicode, Inc. and others. 2 // License & terms of use: http://www.unicode.org/copyright.html 3 /* 4 ******************************************************************************* 5 * Copyright (C) 2013-2015, International Business Machines 6 * Corporation and others. All Rights Reserved. 7 ******************************************************************************* 8 * collationtailoring.cpp 9 * 10 * created on: 2013mar12 11 * created by: Markus W. Scherer 12 */ 13 14 #include "unicode/utypes.h" 15 16 #if !UCONFIG_NO_COLLATION 17 18 #include "unicode/udata.h" 19 #include "unicode/unistr.h" 20 #include "unicode/ures.h" 21 #include "unicode/uversion.h" 22 #include "unicode/uvernum.h" 23 #include "cmemory.h" 24 #include "collationdata.h" 25 #include "collationsettings.h" 26 #include "collationtailoring.h" 27 #include "normalizer2impl.h" 28 #include "uassert.h" 29 #include "uhash.h" 30 #include "umutex.h" 31 #include "utrie2.h" 32 33 U_NAMESPACE_BEGIN 34 35 CollationTailoring::CollationTailoring(const CollationSettings *baseSettings) 36 : data(nullptr), settings(baseSettings), 37 actualLocale(""), 38 ownedData(nullptr), 39 builder(nullptr), memory(nullptr), bundle(nullptr), 40 trie(nullptr), unsafeBackwardSet(nullptr), 41 maxExpansions(nullptr) { 42 if(baseSettings != nullptr) { 43 U_ASSERT(baseSettings->reorderCodesLength == 0); 44 U_ASSERT(baseSettings->reorderTable == nullptr); 45 U_ASSERT(baseSettings->minHighNoReorder == 0); 46 } else { 47 settings = new CollationSettings(); 48 } 49 if(settings != nullptr) { 50 settings->addRef(); 51 } 52 rules.getTerminatedBuffer(); // ensure NUL-termination 53 version[0] = version[1] = version[2] = version[3] = 0; 54 maxExpansionsInitOnce.reset(); 55 } 56 57 CollationTailoring::~CollationTailoring() { 58 SharedObject::clearPtr(settings); 59 delete ownedData; 60 delete builder; 61 udata_close(memory); 62 ures_close(bundle); 63 utrie2_close(trie); 64 delete unsafeBackwardSet; 65 uhash_close(maxExpansions); 66 maxExpansionsInitOnce.reset(); 67 } 68 69 UBool 70 CollationTailoring::ensureOwnedData(UErrorCode &errorCode) { 71 if(U_FAILURE(errorCode)) { return false; } 72 if(ownedData == nullptr) { 73 const Normalizer2Impl *nfcImpl = Normalizer2Factory::getNFCImpl(errorCode); 74 if(U_FAILURE(errorCode)) { return false; } 75 ownedData = new CollationData(*nfcImpl); 76 if(ownedData == nullptr) { 77 errorCode = U_MEMORY_ALLOCATION_ERROR; 78 return false; 79 } 80 } 81 data = ownedData; 82 return true; 83 } 84 85 void 86 CollationTailoring::makeBaseVersion(const UVersionInfo ucaVersion, UVersionInfo version) { 87 version[0] = UCOL_BUILDER_VERSION; 88 version[1] = (ucaVersion[0] << 3) + ucaVersion[1]; 89 version[2] = ucaVersion[2] << 6; 90 version[3] = 0; 91 } 92 93 void 94 CollationTailoring::setVersion(const UVersionInfo baseVersion, const UVersionInfo rulesVersion) { 95 version[0] = UCOL_BUILDER_VERSION; 96 version[1] = baseVersion[1]; 97 version[2] = (baseVersion[2] & 0xc0) + ((rulesVersion[0] + (rulesVersion[0] >> 6)) & 0x3f); 98 version[3] = (rulesVersion[1] << 3) + (rulesVersion[1] >> 5) + rulesVersion[2] + 99 (rulesVersion[3] << 4) + (rulesVersion[3] >> 4); 100 } 101 102 int32_t 103 CollationTailoring::getUCAVersion() const { 104 return (static_cast<int32_t>(version[1]) << 4) | (version[2] >> 6); 105 } 106 107 CollationCacheEntry::~CollationCacheEntry() { 108 SharedObject::clearPtr(tailoring); 109 } 110 111 U_NAMESPACE_END 112 113 #endif // !UCONFIG_NO_COLLATION