If you look at the docs for ASL as opposed to Racket, you will see that match in the former implements a much simpler pattern language than the latter. In particular, ASL does not support the _or_ pattern.
Teaching languages aren't Racket. And we should have students sign a language not to put Racket on their resume when they apply for jobs after taking one of our courses. -- Matthias On Aug 17, 2011, at 9:33 AM, Prabhakar Ragde wrote: > Why does this expression successfully evaluate in #lang racket but gives a > syntax error in Advanced Student? > > (match 1 > [(or 1 2) 'pass] > [else 'fail]) > > The or-clause is highlighted and the error is "match: expected a pattern, but > found a part". > > Thanks. --PR > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/users _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
