public function addBinaryShiftChar($index)
{
$token = $this->token;
$mode = $this->mode;
$bitCount = $this->bitCount;
if ($this->mode == DynamicDataEncoder::MODE_PUNCT || $this->mode == DynamicDataEncoder::MODE_DIGIT) {
$latch = DynamicDataEncoder::getLatch($mode, DynamicDataEncoder::MODE_UPPER);
$token = $token->add($latch & 0xffff, $latch >> 16);
$bitCount += $latch >> 16;
$mode = DynamicDataEncoder::MODE_UPPER;
}
if ($this->shiftByteCount == 0 || $this->shiftByteCount == 31) {
$deltaBitCount = 18;
} elseif ($this->shiftByteCount == 62) {
$deltaBitCount = 9;
} else {
$deltaBitCount = 8;
}
$result = new self($token, $mode, $this->shiftByteCount + 1, $bitCount + $deltaBitCount);
if ($result->getBinaryShiftByteCount() == 2047 + 31) {
$result = $result->endBinaryShift($index + 1);
}
return $result;
}
