1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 ******************************************************************************
5 * Copyright (C) 2009-2012, International Business Machines Corporation and
6 * others. All Rights Reserved.
7 ******************************************************************************
8 * Date Name Description
9 * 12/14/09 doug Creation.
10 ******************************************************************************
11 */
12
13 #include "unicode/utypes.h"
14
15 #if !UCONFIG_NO_FORMATTING
16
17 #include "unicode/fpositer.h"
18 #include "cmemory.h"
19 #include "uvectr32.h"
20
21 U_NAMESPACE_BEGIN
22
~FieldPositionIterator()23 FieldPositionIterator::~FieldPositionIterator() {
24 delete data;
25 data = NULL;
26 pos = -1;
27 }
28
FieldPositionIterator()29 FieldPositionIterator::FieldPositionIterator()
30 : data(NULL), pos(-1) {
31 }
32
FieldPositionIterator(const FieldPositionIterator & rhs)33 FieldPositionIterator::FieldPositionIterator(const FieldPositionIterator &rhs)
34 : UObject(rhs), data(NULL), pos(rhs.pos) {
35
36 if (rhs.data) {
37 UErrorCode status = U_ZERO_ERROR;
38 data = new UVector32(status);
39 data->assign(*rhs.data, status);
40 if (status != U_ZERO_ERROR) {
41 delete data;
42 data = NULL;
43 pos = -1;
44 }
45 }
46 }
47
operator ==(const FieldPositionIterator & rhs) const48 UBool FieldPositionIterator::operator==(const FieldPositionIterator &rhs) const {
49 if (&rhs == this) {
50 return TRUE;
51 }
52 if (pos != rhs.pos) {
53 return FALSE;
54 }
55 if (!data) {
56 return rhs.data == NULL;
57 }
58 return rhs.data ? data->operator==(*rhs.data) : FALSE;
59 }
60
setData(UVector32 * adopt,UErrorCode & status)61 void FieldPositionIterator::setData(UVector32 *adopt, UErrorCode& status) {
62 // Verify that adopt has valid data, and update status if it doesn't.
63 if (U_SUCCESS(status)) {
64 if (adopt) {
65 if (adopt->size() == 0) {
66 delete adopt;
67 adopt = NULL;
68 } else if ((adopt->size() % 4) != 0) {
69 status = U_ILLEGAL_ARGUMENT_ERROR;
70 } else {
71 for (int i = 2; i < adopt->size(); i += 4) {
72 if (adopt->elementAti(i) >= adopt->elementAti(i+1)) {
73 status = U_ILLEGAL_ARGUMENT_ERROR;
74 break;
75 }
76 }
77 }
78 }
79 }
80
81 // We own the data, even if status is in error, so we need to delete it now
82 // if we're not keeping track of it.
83 if (!U_SUCCESS(status)) {
84 delete adopt;
85 return;
86 }
87
88 delete data;
89 data = adopt;
90 pos = adopt == NULL ? -1 : 0;
91 }
92
next(FieldPosition & fp)93 UBool FieldPositionIterator::next(FieldPosition& fp) {
94 if (pos == -1) {
95 return FALSE;
96 }
97
98 // Ignore the first element of the tetrad: used for field category
99 pos++;
100 fp.setField(data->elementAti(pos++));
101 fp.setBeginIndex(data->elementAti(pos++));
102 fp.setEndIndex(data->elementAti(pos++));
103
104 if (pos == data->size()) {
105 pos = -1;
106 }
107
108 return TRUE;
109 }
110
111 U_NAMESPACE_END
112
113 #endif /* #if !UCONFIG_NO_FORMATTING */
114
115