private function autoPrependBlock()
{
$chars = substr(str_replace(PHP_EOL, "\n", $this->bufferedOutput->fetch()), -2);
if (!isset($chars[0])) {
return $this->newLine(); //empty history, so we should start with a new line.
}
//Prepend new line for each non LF chars (This means no blank line was output before)
$this->newLine(2 - substr_count($chars, "\n"));
}