/**
* Add text to the buffer without attempting to interpret chararacter codes.
*
* Text should either be followed by a line-break, or feed() should be called
* after this to clear the print buffer.
*
* @param string $str Text to print
*/
public function textRaw($str = "")
{
self::validateString($str, __FUNCTION__);
$this->buffer->writeTextRaw((string) $str);
}