In DrRacket 6.2.1 when using the `match` construct as defined in the abstraction teachpack together with posn a strange problem appears.
When choosing BSL as language the following code just works as expected: ``` (require 2htdp/abstraction) (match (make-posn 1 2) [(posn x y) (+ x y)]) ``` yields `3`. However when choosing "BSL with list abbreviation" the above code gives: ``` ... (posn x y) ... function call: expected a function after the open parenthesis, but found a part ``` We can work around the error by using `my-posn` instead (defined below) ``` (define-struct my-posn (x y)) ``` Is there any explanation why this happens? Is the abstraction teachpack not designed to work with "BSL with list abbrv" ? -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
