Laurent writes: > Unsyntax-splicing to the rescue!
Great, this evokes memories of Common Lisp macros... More importantly, it works! J. Ian Johnson writes: > This is such a common pattern that there is support for it with a > feature called syntax templates, in > syntax/parse/experimental/template. You would use (?? super) to add > super only if it's given, and nothing otherwise. Good to see that this is a common pattern. I hope the experiment will prove satisfactory. For me at least it works fine. Thanks to both of you, Konrad. ____________________ Racket Users list: http://lists.racket-lang.org/users
