code: private static State nextNormal(final State state,
          final ByteArrayOutputStream line, final int next) {
          final State result;
          switch (next) {
              case '\r':
                  result = State.R;
                  break;
              case '\"':
                  result = State.QUOTED_STRING;
                  break;
              default:
                  result = state;
                  line.write(next);
                  break;
          }
          return result;
      }
docs: Maintain next symbol for current state = State.NORMAL.
  @param state Current state.
  @param line Current chunk size line.
  @param next Next symbol.
  @return New state.