private int GetCharCount(byte[] bytes, int index, int count, DbcsDecoder decoder)
{
var charCount = 0;
for (var i = 0; i < count; index++, charCount++, i++)
{
ushort u = 0;
if (decoder != null && decoder.PendingByte != 0)
{
u = decoder.PendingByte;
decoder.PendingByte = 0;
}
u = (ushort)(u << 8 | bytes[index]);
var c = _dbcsToUnicode[u];
if (c != LeadByteChar)
{
continue;
}
if (i < count - 1)
{
index++;
i++;
}
else if (decoder != null)
{
decoder.PendingByte = bytes[index];
return(charCount);
}
}
return(charCount);
}
private int GetChars(byte[] bytes, int byteIndex, int byteCount, char[] chars, int charIndex, DbcsDecoder decoder)
{
var charCount = 0;
for (var i = 0; i < byteCount; byteIndex++, charIndex++, charCount++, i++)
{
ushort u = 0;
if (decoder != null && decoder.PendingByte != 0)
{
u = decoder.PendingByte;
decoder.PendingByte = 0;
}
u = (ushort)(u << 8 | bytes[byteIndex]);
var c = _dbcsToUnicode[u];
if (c == LeadByteChar)
{
if (i < byteCount - 1)
{
byteIndex++;
i++;
u = (ushort)(u << 8 | bytes[byteIndex]);
c = _dbcsToUnicode[u];
}
else if (decoder == null)
{
c = '\0';
}
else
{
decoder.PendingByte = bytes[byteIndex];
return(charCount);
}
}
if (c == 0 && u != 0)
{
chars[charIndex] = '?';
}
else
{
chars[charIndex] = c;
}
}
return(charCount);
}
