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
24U_NAMESPACE_BEGIN
25
26TransliterationRuleData::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
38TransliterationRuleData::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
89TransliterationRuleData::~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
98UnicodeFunctor*
99TransliterationRuleData::lookup(UChar32 standIn) const {
100 int32_t i = standIn - variablesBase;
101 return (i >= 0 && i < variablesLength) ? variables[i] : 0;
102}
103
104UnicodeMatcher*
105TransliterationRuleData::lookupMatcher(UChar32 standIn) const {
106 UnicodeFunctor *f = lookup(standIn);
107 return (f != 0) ? f->toMatcher() : 0;
108}
109
110UnicodeReplacer*
111TransliterationRuleData::lookupReplacer(UChar32 standIn) const {
112 UnicodeFunctor *f = lookup(standIn);
113 return (f != 0) ? f->toReplacer() : 0;
114}
115
116
117U_NAMESPACE_END
118
119#endif /* #if !UCONFIG_NO_TRANSLITERATION */
120