1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 **********************************************************************
5 * Copyright (C) 1999-2014, International Business Machines
6 * Corporation and others. All Rights Reserved.
7 **********************************************************************
8 * Date Name Description
9 * 11/17/99 aliu Creation.
10 **********************************************************************
11 */
12
13 #include "unicode/utypes.h"
14 #include "umutex.h"
15
16 #if !UCONFIG_NO_TRANSLITERATION
17
18 #include "unicode/unistr.h"
19 #include "unicode/uniset.h"
20 #include "rbt_data.h"
21 #include "hash.h"
22 #include "cmemory.h"
23
24 U_NAMESPACE_BEGIN
25
TransliterationRuleData(UErrorCode & status)26 TransliterationRuleData::TransliterationRuleData(UErrorCode& status)
27 : UMemory(), ruleSet(status), variableNames(status),
28 variables(0), variablesAreOwned(TRUE)
29 {
30 if (U_FAILURE(status)) {
31 return;
32 }
33 variableNames.setValueDeleter(uprv_deleteUObject);
34 variables = 0;
35 variablesLength = 0;
36 }
37
TransliterationRuleData(const TransliterationRuleData & other)38 TransliterationRuleData::TransliterationRuleData(const TransliterationRuleData& other) :
39 UMemory(other), ruleSet(other.ruleSet),
40 variablesAreOwned(TRUE),
41 variablesBase(other.variablesBase),
42 variablesLength(other.variablesLength)
43 {
44 UErrorCode status = U_ZERO_ERROR;
45 int32_t i = 0;
46 variableNames.setValueDeleter(uprv_deleteUObject);
47 int32_t pos = UHASH_FIRST;
48 const UHashElement *e;
49 while ((e = other.variableNames.nextElement(pos)) != 0) {
50 UnicodeString* value =
51 new UnicodeString(*(const UnicodeString*)e->value.pointer);
52 // Exit out if value could not be created.
53 if (value == NULL) {
54 return;
55 }
56 variableNames.put(*(UnicodeString*)e->key.pointer, value, status);
57 }
58
59 variables = 0;
60 if (other.variables != 0) {
61 variables = (UnicodeFunctor **)uprv_malloc(variablesLength * sizeof(UnicodeFunctor *));
62 /* test for NULL */
63 if (variables == 0) {
64 status = U_MEMORY_ALLOCATION_ERROR;
65 return;
66 }
67 for (i=0; i<variablesLength; ++i) {
68 variables[i] = other.variables[i]->clone();
69 if (variables[i] == NULL) {
70 status = U_MEMORY_ALLOCATION_ERROR;
71 break;
72 }
73 }
74 }
75 // Remove the array and exit if memory allocation error occured.
76 if (U_FAILURE(status)) {
77 for (int32_t n = i-1; n >= 0; n--) {
78 delete variables[n];
79 }
80 uprv_free(variables);
81 variables = NULL;
82 return;
83 }
84
85 // Do this last, _after_ setting up variables[].
86 ruleSet.setData(this); // ruleSet must already be frozen
87 }
88
~TransliterationRuleData()89 TransliterationRuleData::~TransliterationRuleData() {
90 if (variablesAreOwned && variables != 0) {
91 for (int32_t i=0; i<variablesLength; ++i) {
92 delete variables[i];
93 }
94 }
95 uprv_free(variables);
96 }
97
98 UnicodeFunctor*
lookup(UChar32 standIn) const99 TransliterationRuleData::lookup(UChar32 standIn) const {
100 int32_t i = standIn - variablesBase;
101 return (i >= 0 && i < variablesLength) ? variables[i] : 0;
102 }
103
104 UnicodeMatcher*
lookupMatcher(UChar32 standIn) const105 TransliterationRuleData::lookupMatcher(UChar32 standIn) const {
106 UnicodeFunctor *f = lookup(standIn);
107 return (f != 0) ? f->toMatcher() : 0;
108 }
109
110 UnicodeReplacer*
lookupReplacer(UChar32 standIn) const111 TransliterationRuleData::lookupReplacer(UChar32 standIn) const {
112 UnicodeFunctor *f = lookup(standIn);
113 return (f != 0) ? f->toReplacer() : 0;
114 }
115
116
117 U_NAMESPACE_END
118
119 #endif /* #if !UCONFIG_NO_TRANSLITERATION */
120