1 /*
2 *******************************************************************************
3 * Copyright (C) 2013-2014, 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
CollationTailoring(const CollationSettings * baseSettings)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 } else {
44 settings = new CollationSettings();
45 }
46 if(settings != NULL) {
47 settings->addRef();
48 }
49 rules.getTerminatedBuffer(); // ensure NUL-termination
50 version[0] = version[1] = version[2] = version[3] = 0;
51 maxExpansionsInitOnce.reset();
52 }
53
~CollationTailoring()54 CollationTailoring::~CollationTailoring() {
55 SharedObject::clearPtr(settings);
56 delete ownedData;
57 delete builder;
58 udata_close(memory);
59 ures_close(bundle);
60 utrie2_close(trie);
61 delete unsafeBackwardSet;
62 uhash_close(maxExpansions);
63 maxExpansionsInitOnce.reset();
64 }
65
66 UBool
ensureOwnedData(UErrorCode & errorCode)67 CollationTailoring::ensureOwnedData(UErrorCode &errorCode) {
68 if(U_FAILURE(errorCode)) { return FALSE; }
69 if(ownedData == NULL) {
70 const Normalizer2Impl *nfcImpl = Normalizer2Factory::getNFCImpl(errorCode);
71 if(U_FAILURE(errorCode)) { return FALSE; }
72 ownedData = new CollationData(*nfcImpl);
73 if(ownedData == NULL) {
74 errorCode = U_MEMORY_ALLOCATION_ERROR;
75 return FALSE;
76 }
77 }
78 data = ownedData;
79 return TRUE;
80 }
81
82 void
makeBaseVersion(const UVersionInfo ucaVersion,UVersionInfo version)83 CollationTailoring::makeBaseVersion(const UVersionInfo ucaVersion, UVersionInfo version) {
84 version[0] = UCOL_BUILDER_VERSION;
85 version[1] = (ucaVersion[0] << 3) + ucaVersion[1];
86 version[2] = ucaVersion[2] << 6;
87 version[3] = 0;
88 }
89
90 void
setVersion(const UVersionInfo baseVersion,const UVersionInfo rulesVersion)91 CollationTailoring::setVersion(const UVersionInfo baseVersion, const UVersionInfo rulesVersion) {
92 version[0] = UCOL_BUILDER_VERSION;
93 version[1] = baseVersion[1];
94 version[2] = (baseVersion[2] & 0xc0) + ((rulesVersion[0] + (rulesVersion[0] >> 6)) & 0x3f);
95 version[3] = (rulesVersion[1] << 3) + (rulesVersion[1] >> 5) + rulesVersion[2] +
96 (rulesVersion[3] << 4) + (rulesVersion[3] >> 4);
97 }
98
99 int32_t
getUCAVersion() const100 CollationTailoring::getUCAVersion() const {
101 return ((int32_t)version[1] << 4) | (version[2] >> 6);
102 }
103
104 U_NAMESPACE_END
105
106 #endif // !UCONFIG_NO_COLLATION
107