icuSources/i18n/collationtailoring.cpp

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