code: public static boolean eval(String s) {
          if (S.isEmpty(s)) return false;
          if ("false".equalsIgnoreCase(s)) return false;
          if ("no".equalsIgnoreCase(s)) return false;
          return true;
      }
docs: Return true if the specified string does not equals, ignore case, to "false" or "no"
  
  @param s
  @return boolean result