That's pretty neat! But then -> will be implemented using cond->, which is slightly off.
On Friday, August 28, 2015 at 6:07:46 PM UTC+5:30, Moe Aboulkheir wrote: > > On Fri, Aug 28, 2015 at 12:37 PM, Akhil Wali <green.tr...@gmail.com > <javascript:>> wrote: > >> >> This does work, but it's a bit of whammy. >> Anyone with suggestions for improvement? >> > > I went over this quickly, though it seems to work OK: > > (defn threading [x first? forms] > (reduce > (fn [x form] > (if (seq? form) > (let [[op & args] form > args (conj (cond-> args (not first?) vec) x)] > (apply list op args)) > (list form x))) > x forms)) > > (defmacro -> [x & forms] > (threading x true forms)) > > (defmacro ->> [x & forms] > (threading x false forms)) > > Take care, > Moe > > -- 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 --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
