code: public function handleCode(Code $code)
      {
          $text   = $code->getText();
          if (!strlen($text)) {
              return;
          }
          
          $lines  = Strings::getLines($text);
          $indent = $this->indent();
          $this->result .= $indent;
          $this->result .= implode($this->breakCode() . $indent, $lines);
      }
docs: Code を読み込みます.
  @param Code $code