oh, I meant custom from the bottom up, without using clojure.zip at all (so your issue with the return value of children wouldn't come up). I realize this doesn't answer your question about alternatives.
On Wed, Dec 4, 2013 at 1:15 PM, dabd <dario.reh...@gmail.com> wrote: > I had to implement a custom tree zipper as none of the existing zippers > worked for me. > My question is are there better alternatives when you want the best > performance in clojure? > > > On Wednesday, December 4, 2013 9:12:16 PM UTC, Ben wrote: > >> it might be worthwhile to implement custom zippers for your trees, >> without using clojure.zip. I've done this for navigating into json >> structures and it was relatively painless (admittedly I only needed a >> smallish subset of the functionality provided by clojure.zip). >> >> >> On Wed, Dec 4, 2013 at 1:09 PM, dabd <dario....@gmail.com> wrote: >> >>> I didn't get there because I ran into problems with the zipper API. >>> When you call 'children' on a loc you get a seq of nodes instead of a seq >>> of locs which causes me problems in a recursive algorithm operating on locs. >>> >>> On Wednesday, December 4, 2013 8:38:17 PM UTC, James Reeves wrote: >>> >>>> On 4 December 2013 20:27, dabd <dario....@gmail.com> wrote: >>>> >>>>> >>>>> I tried a purely functional approach with zippers but ran into some >>>>> trouble with the zipper API. I also think I will would have performance >>>>> problems too as there is a lot of bookkeeping in a zipper (paths, parents >>>>> associated with a loc). >>>>> >>>> >>>> You think you'll have performance problems? Have you benchmarked and >>>> checked? :) >>>> >>>> - James >>>> >>> -- >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Clojure" group. >>> To post to this group, send email to clo...@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+u...@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+u...@googlegroups.com. >>> >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >> >> >> >> -- >> Ben Wolfson >> "Human kind has used its intelligence to vary the flavour of drinks, >> which may be sweet, aromatic, fermented or spirit-based. ... Family and >> social life also offer numerous other occasions to consume drinks for >> pleasure." [Larousse, "Drink" entry] >> >> -- > -- > 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. > -- Ben Wolfson "Human kind has used its intelligence to vary the flavour of drinks, which may be sweet, aromatic, fermented or spirit-based. ... Family and social life also offer numerous other occasions to consume drinks for pleasure." [Larousse, "Drink" entry] -- -- 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.
