code: @Override
      public String toReplacerPattern(boolean escapeUnprintable) {
          StringBuilder rule = new StringBuilder("&");
          rule.append(translit.getID());
          rule.append("( ");
          rule.append(replacer.toReplacerPattern(escapeUnprintable));
          rule.append(" )");
          return rule.toString();
      }
docs: UnicodeReplacer API