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
31U_NAMESPACE_BEGIN
32
33CollationTailoring::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
54CollationTailoring::~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
66UBool
67CollationTailoring::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
82void
83CollationTailoring::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
90void
91CollationTailoring::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
99int32_t
100CollationTailoring::getUCAVersion() const {
101    return ((int32_t)version[1] << 4) | (version[2] >> 6);
102}
103
104U_NAMESPACE_END
105
106#endif  // !UCONFIG_NO_COLLATION
107