public Parser dtLineColPositioning() {
        if (dtLineColPositioningParser == null) {
           FutureParser future = scoped("dtLineColPositioning");
           dtLineColPositioningParser = future;
           future.setParser(
               sequence(
                   optional(
                       choice(
                           token("AT"),
                           token("FROM")
                       )
                   ),
                   choice(
                       sequence(
                           dtLinePos(),
                           optional(
                               dtColPos()
                           )
                       ),
                       sequence(
                           dtColPos(),
                           optional(
                               dtLinePos()
                           )
                       )
                   )
               )
           );
        }

        return dtLineColPositioningParser;
    }