void String::operator += (const String& src)
{
DataDesc *pourData = GetData(),
*psrcData = src.GetData();
UPInt ourSize = pourData->GetSize(),
srcSize = psrcData->GetSize();
UPInt lflag = pourData->GetLengthFlag() & psrcData->GetLengthFlag();
SetData(AllocDataCopy2(ourSize + srcSize, lflag,
pourData->Data, ourSize, psrcData->Data, srcSize));
pourData->Release();
}
void String::Remove(UPInt posAt, SPInt removeLength)
{
DataDesc* pdata = GetData();
UPInt oldSize = pdata->GetSize();
// Length indicates the number of characters to remove.
UPInt length = GetLength();
// If index is past the string, nothing to remove.
if (posAt >= length)
return;
// Otherwise, cap removeLength to the length of the string.
if ((posAt + removeLength) > length)
removeLength = length - posAt;
// Get the byte position of the UTF8 char at position posAt.
SPInt bytePos = UTF8Util::GetByteIndex(posAt, pdata->Data, oldSize);
SPInt removeSize = UTF8Util::GetByteIndex(removeLength, pdata->Data + bytePos, oldSize-bytePos);
SetData(AllocDataCopy2(oldSize - removeSize, pdata->GetLengthFlag(),
pdata->Data, bytePos,
pData->Data + bytePos + removeSize, (oldSize - bytePos - removeSize)));
pdata->Release();
}