Here's an approach that doesn't use macros. I'm not sure I'd actually do this, but here it is just for grins.
(defn bind [pred] (fn [[x bool]] [x (and (pred x) bool)])) (defn comp# [ & preds ] (let [ phi (reduce comp (map bind preds))] (fn [x] (second (phi [x true]))))) user> (filter (comp# even? pos? #(zero? (rem % 3)) ) (range -30 30)) (6 12 18 24) -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en