icuSources/i18n/fpositer.cpp

   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
  19 U_NAMESPACE_BEGIN
  20
  21 UOBJECT_DEFINE_NO_RTTI_IMPLEMENTATION(FieldPositionIterator)
  22
  23 FieldPositionIterator::~FieldPositionIterator() {
  24   delete data;
  25   data = NULL;
  26   pos = -1;
  27 }
  28
  29 FieldPositionIterator::FieldPositionIterator()
  30     : data(NULL), pos(-1) {
  31 }
  32
  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
  48 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
  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() % 3) != 0) {
  66         status = U_ILLEGAL_ARGUMENT_ERROR;
  67       } else {
  68         for (int i = 1; i < adopt->size(); i += 3) {
  69           if (adopt->elementAti(i) >= adopt->elementAti(i+1)) {
  70             status = U_ILLEGAL_ARGUMENT_ERROR;
  71             break;
  72           }
  73         }
  74       }
  75     }
  76   }
  77
  78   // We own the data, even if status is in error, so we need to delete it now
  79   // if we're not keeping track of it.
  80   if (!U_SUCCESS(status)) {
  81     delete adopt;
  82     return;
  83   }
  84
  85   delete data;
  86   data = adopt;
  87   pos = adopt == NULL ? -1 : 0;
  88 }
  89
  90 UBool FieldPositionIterator::next(FieldPosition& fp) {
  91   if (pos == -1) {
  92     return FALSE;
  93   }
  94
  95   fp.setField(data->elementAti(pos++));
  96   fp.setBeginIndex(data->elementAti(pos++));
  97   fp.setEndIndex(data->elementAti(pos++));
  98
  99   if (pos == data->size()) {
 100     pos = -1;
 101   }
 102
 103   return TRUE;
 104 }
 105
 106 U_NAMESPACE_END
 107
 108 #endif /* #if !UCONFIG_NO_FORMATTING */
 109