On Sat, May 8, 2010 at 1:01 PM, Meikel Brandmeyer <m...@kotka.de> wrote:
> Hi, > > if you want to go low-level you can use lazy-seq. > > (defn replace-first > [needle replacement coll] > (lazy-seq > (when-let [s (seq coll)] > (let [fst (first s)] > (if (= fst needle) > (cons replacement (rest s)) > (cons fst (replace-first needle replacement (rest s)))))))) > > Hi Meikel, I would love to see this generalized to become a lazy foldr in clojure, which is one of the frequently used(abused) HOF. The unfold I mentioned is another very useful HOF. -- 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
