1/*
2******************************************************************************
3* Copyright (C) 2009-2010, International Business Machines Corporation and
4* others. All Rights Reserved.
5******************************************************************************
6*   Date        Name        Description
7*   12/14/09    doug        Creation.
8******************************************************************************
9*/
10
11#include "unicode/utypes.h"
12
13#if !UCONFIG_NO_FORMATTING
14
15#include "unicode/fpositer.h"
16#include "cmemory.h"
17#include "uvectr32.h"
18
19U_NAMESPACE_BEGIN
20
21UOBJECT_DEFINE_RTTI_IMPLEMENTATION(FieldPositionIterator)
22
23FieldPositionIterator::~FieldPositionIterator() {
24  delete data;
25  data = NULL;
26  pos = -1;
27}
28
29FieldPositionIterator::FieldPositionIterator()
30    : data(NULL), pos(-1) {
31}
32
33FieldPositionIterator::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
48UBool 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
61int32_t FieldPositionIterator::getData(int32_t *dest, int32_t capacity) const {
62  int32_t len = data ? data->size() : 0;
63  if (len && dest) {
64    if (capacity < len) {
65      len = -len; // error, insufficient capacity
66    } else {
67      memcpy(dest, data->getBuffer(), len * sizeof(int32_t));
68    }
69  }
70  return len;
71}
72
73void FieldPositionIterator::setData(UVector32 *adopt, UErrorCode& status) {
74  // Verify that adopt has valid data, and update status if it doesn't.
75  if (U_SUCCESS(status)) {
76    if (adopt) {
77      if ((adopt->size() % 3) != 0) {
78        status = U_ILLEGAL_ARGUMENT_ERROR;
79      } else {
80        for (int i = 1; i < adopt->size(); i += 3) {
81          if (adopt->elementAti(i) >= adopt->elementAti(i+1)) {
82            status = U_ILLEGAL_ARGUMENT_ERROR;
83            break;
84          }
85        }
86      }
87    }
88  }
89
90  // We own the data, even if status is in error, so we need to delete it now
91  // if we're not keeping track of it.
92  if (!U_SUCCESS(status)) {
93    delete adopt;
94    return;
95  }
96
97  delete data;
98  data = adopt;
99  pos = adopt == NULL ? -1 : 0;
100}
101
102UBool FieldPositionIterator::next(FieldPosition& fp) {
103  if (pos == -1) {
104    return FALSE;
105  }
106
107  fp.setField(data->elementAti(pos++));
108  fp.setBeginIndex(data->elementAti(pos++));
109  fp.setEndIndex(data->elementAti(pos++));
110
111  if (pos == data->size()) {
112    pos = -1;
113  }
114
115  return TRUE;
116}
117
118U_NAMESPACE_END
119
120#endif /* #if !UCONFIG_NO_FORMATTING */
121