code: public String render() {
      StringBuilder buf = new StringBuilder();
      for (Node node : parsed) {
        if (node instanceof Symbol) {
          switch ((Symbol)node) {
            case MINUS:
              buf.append('-');
              break;
  
            case CURRENCY:
              buf.append(CURRENCY_SYM);
              break;
  
            case PERCENT:
              buf.append('%');
              break;
          }
        } else if (node instanceof Text) {
          String text = ((Text)node).text;
  
          int len = text.length();
          for (int i = 0; i < len; i++) {
            char ch = text.charAt(i);
            switch (ch) {
              case '.':
              case '#':
              case ',':
              case '-':
                buf.append('\'').append(ch).append('\'');
                break;
  
              default:
                buf.append(ch);
                break;
            }
          }
        } else if (node instanceof Format) {
          Format format = (Format) node;
          format.render(buf);
        }
      }
  
      return buf.toString();
    }
docs: Render a parseable representation of this pattern.