I went though almost the exact same exercise and my code is almost identical to yours. I called it partition-every and I use it a lot. A more determined individual might submit this for inclusion into core!
On Tuesday, March 3, 2015 at 2:46:29 PM UTC-5, Frank wrote: > > Hi all, > > for some tests I need a function which starts a new partition each time a > predicate returns true, for instance: > > (partition-when > (fn [s] (.startsWith s ">>")) > [">> 1" "2" "3" ">> 4" "5" "6"]) > :=> [[">> 1" "2" "3"] [">> 4" "5" "6"]] > > Since I haven't found a built-in function, I copied, pasted, and modified > the core function partition-by: > > (defn partition-when > [f coll] > (lazy-seq > (when-let [s (seq coll)] > (let [fst (first s) > run (cons fst (take-while #(not (f %)) (next s)))] > (cons run (partition-when f (seq (drop (count run) s)))))))) > > Is there a better (more idiomatic) way to achieve the same result? > > Thank you in advance. > > Frank > -- 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.
