code: protected function parse_linebreak() {
  		if($this->doc[$this->pos] === "\r") {
  			++$this->line_pos[0];
  			if ((($this->pos + 1) < $this->size) && ($this->doc[$this->pos + 1] === "\n")) {
  				++$this->pos;
  			}
  			$this->line_pos[1] = $this->pos;
  		} elseif($this->doc[$this->pos] === "\n") {
  			++$this->line_pos[0];
  			$this->line_pos[1] = $this->pos;
  		}
  	}
docs: Parse line breaks and increase line number
  @internal Gets called to process line breaks