void copyIso8859_1ReadBuffer(int count)
    {
        int i, j;
        for (i = 0, j = readBufferPos; i < count; i++, j++) {
            readBuffer[j] = (char) (rawReadBuffer[i] & 0xff);
            if (readBuffer[j] == '\r') {
                sawCR = true;
            }
        }
        readBufferLength = j;
    }