code: public String text() {
          StringBuilder sb = new StringBuilder(nodes.length * 8);
          for (int i = 0; i < nodes.length; ++i) {
              String token = nodes[i].word();
              sb.append(token);
              if (i+1 < nodes.length)
                  sb.append(' ');
          }
          return sb.toString();
      }
docs: {@inheritDoc}