With a nested vector tree you can use the built in vector-zip function to create your zipper.
As to the editing, the source code<https://github.com/clojure/clojure/blob/master/src/clj/clojure/zip.clj> contains a very similar use-case, which can be adapted to something like the following: (let [vz (vector-zip [1 2 [3 4 5]])] (loop [loc vz] (if (end? loc) (root loc) (recur (next (if (and (integer? (node loc)) (odd? (node loc))) (replace loc (* 2 (node loc))) loc)))))) > [2 2 [6 4 10]] On Tuesday, November 26, 2013 10:50:34 PM UTC+1, dabd wrote: > > I am trying to work with a tree representation using vectors where the > first element is the node value and the rest are the children as suggested > here: > > http://grokbase.com/t/gg/clojure/12afy2cz9p/how-to-represent-trees-for-use-with-zippers > > However I am having trouble using clojure.zip/edit to change a simple > tree. I'd like to multiply the odd numbers by 2 in this case. > https://gist.github.com/dabd/7666778 > > It looks like after editing the first (branch) node clojure.zip/next will > get to the end of the tree. > How can I correct this code? > > Thanks. > > -- -- 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/groups/opt_out.
