code: void addNamedFilters(String filterNameList) {
          String[] touchFilterNames = filterNameList.split(",");
          if (touchFilterNames != null) {
              for (String touchFilterName : touchFilterNames) {
                  String s = touchFilterName.trim();
                  if (s.length() > 0) {
                      addNamedFilter(s);
                  }
              }
          }
      }
docs: Attempts to add the filters named in the comma-separated list provided.