code: @Override
    public String format(LogRecord log)
    {
      StringBuilder sb = new StringBuilder();
      
      int mark = 0;
  
      for (FormatItem item : _formatList) {
        item.format(sb, log, mark);
        
        if (item instanceof PrettyPrintMarkItem) {
          mark = sb.length();
        }
      }
      
      return sb.toString();
    }
docs: Formats the record