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
33U_NAMESPACE_BEGIN
34
35CollationTailoring::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
57CollationTailoring::~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
69UBool
70CollationTailoring::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
85void
86CollationTailoring::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
93void
94CollationTailoring::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
102int32_t
103CollationTailoring::getUCAVersion() const {
104 return ((int32_t)version[1] << 4) | (version[2] >> 6);
105}
106
107CollationCacheEntry::~CollationCacheEntry() {
108 SharedObject::clearPtr(tailoring);
109}
110
111U_NAMESPACE_END
112
113#endif // !UCONFIG_NO_COLLATION
114