icuSources/i18n/fpositer.cpp

   1 /*
   2 ******************************************************************************
   3 * Copyright (C) 2009-2012, 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 FieldPositionIterator::~FieldPositionIterator() {
  22   delete data;
  23   data = NULL;
  24   pos = -1;
  25 }
  26
  27 FieldPositionIterator::FieldPositionIterator()
  28     : data(NULL), pos(-1) {
  29 }
  30
  31 FieldPositionIterator::FieldPositionIterator(const FieldPositionIterator &rhs)
  32   : UObject(rhs), data(NULL), pos(rhs.pos) {
  33
  34   if (rhs.data) {
  35     UErrorCode status = U_ZERO_ERROR;
  36     data = new UVector32(status);
  37     data->assign(*rhs.data, status);
  38     if (status != U_ZERO_ERROR) {
  39       delete data;
  40       data = NULL;
  41       pos = -1;
  42     }
  43   }
  44 }
  45
  46 UBool FieldPositionIterator::operator==(const FieldPositionIterator &rhs) const {
  47   if (&rhs == this) {
  48     return TRUE;
  49   }
  50   if (pos != rhs.pos) {
  51     return FALSE;
  52   }
  53   if (!data) {
  54     return rhs.data == NULL;
  55   }
  56   return rhs.data ? data->operator==(*rhs.data) : FALSE;
  57 }
  58
  59 void FieldPositionIterator::setData(UVector32 *adopt, UErrorCode& status) {
  60   // Verify that adopt has valid data, and update status if it doesn't.
  61   if (U_SUCCESS(status)) {
  62     if (adopt) {
  63       if ((adopt->size() % 3) != 0) {
  64         status = U_ILLEGAL_ARGUMENT_ERROR;
  65       } else {
  66         for (int i = 1; i < adopt->size(); i += 3) {
  67           if (adopt->elementAti(i) >= adopt->elementAti(i+1)) {
  68             status = U_ILLEGAL_ARGUMENT_ERROR;
  69             break;
  70           }
  71         }
  72       }
  73     }
  74   }
  75
  76   // We own the data, even if status is in error, so we need to delete it now
  77   // if we're not keeping track of it.
  78   if (!U_SUCCESS(status)) {
  79     delete adopt;
  80     return;
  81   }
  82
  83   delete data;
  84   data = adopt;
  85   pos = adopt == NULL ? -1 : 0;
  86 }
  87
  88 UBool FieldPositionIterator::next(FieldPosition& fp) {
  89   if (pos == -1) {
  90     return FALSE;
  91   }
  92
  93   fp.setField(data->elementAti(pos++));
  94   fp.setBeginIndex(data->elementAti(pos++));
  95   fp.setEndIndex(data->elementAti(pos++));
  96
  97   if (pos == data->size()) {
  98     pos = -1;
  99   }
 100
 101   return TRUE;
 102 }
 103
 104 U_NAMESPACE_END
 105
 106 #endif /* #if !UCONFIG_NO_FORMATTING */
 107