text: class SplitToWordsRule:
      def __init__(self, sep):
          self._sep = sep
  
      def main(self):
          pass
  
      def split(self, content):
          """
  
          :param content:
          :return: [,...]
          """
          all_tag_list = []
          if not content:
              return all_tag_list
  
          tag_list = content.split(self._sep)
          if not tag_list:
              return []
  
          for tag in tag_list:
              tag = tag.strip()
              if not tag:
                  continue
  
              all_tag_list.append(tag)
  
          return all_tag_list
  