code: protected void normalizeAndPrint(String s, boolean isAttValue) {
          
          int len = (s != null) ? s.length() : 0;
          for (int i = 0; i < len; i++) {
              char c = s.charAt(i);
              normalizeAndPrint(c, isAttValue);
          }
          
      }
docs: Normalizes and prints the given string.