icuSources/i18n/collationtailoring.cpp

   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(NULL), settings(baseSettings),
  37           actualLocale(""),
  38           ownedData(NULL),
  39           builder(NULL), memory(NULL), bundle(NULL),
  40           trie(NULL), unsafeBackwardSet(NULL),
  41           maxExpansions(NULL) {
  42     if(baseSettings != NULL) {
  43         U_ASSERT(baseSettings->reorderCodesLength == 0);
  44         U_ASSERT(baseSettings->reorderTable == NULL);
  45         U_ASSERT(baseSettings->minHighNoReorder == 0);
  46     } else {
  47         settings = new CollationSettings();
  48     }
  49     if(settings != NULL) {
  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 == NULL) {
  73         const Normalizer2Impl *nfcImpl = Normalizer2Factory::getNFCImpl(errorCode);
  74         if(U_FAILURE(errorCode)) { return FALSE; }
  75         ownedData = new CollationData(*nfcImpl);
  76         if(ownedData == NULL) {
  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 ((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