public Parser setFormat1() {
        if (setFormat1Parser == null) {
           FutureParser future = scoped("setFormat1");
           setFormat1Parser = future;
           future.setParser(
               sequence(
                   plus(
                       choice(
                           indexName(),
                           identifier()
                       )
                   ),
                   token("TO"),
                   choice(
                       indexName(),
                       identifier(),
                       integer()
                   )
               )
           );
        }

        return setFormat1Parser;
    }