code: public boolean filter(Term term) {
  
          if (!stop.isEmpty() && (stop.contains(term.getName()))) {
              return true;
          }
  
          if (!natureStop.isEmpty() && (natureStop.contains(term.natrue().natureStr))) {
              return true;
          }
  
          if (!regexList.isEmpty()) {
              for (Pattern stopwordPattern : regexList) {
                  if (stopwordPattern.matcher(term.getName()).matches()) {
                      return true;
                  }
              }
          }
  
          return false;
      }
docs: 判断一个词语是否停用..
  
  @param term
  @return