Nice book! I've been looking for something like that, thanks for sharing! On Thu, Jun 2, 2016 at 10:24 PM Colin Fleming <colin.mailingl...@gmail.com> wrote:
> BTW if you're interested in Specter, Brian Marick has an interesting book > which aims to teach Specter by implementing it: > https://leanpub.com/specter. I bought it but haven't had time to work > through it yet, but from an initial skimming it looks very nice. > > On 3 June 2016 at 16:11, Mark Engelberg <mark.engelb...@gmail.com> wrote: > >> That's an interesting idea. Maybe there's a way to build a set of >> Specter navigators that operate on transients, and then use its >> corresponding eqiuvalences for assoc-in, update-in, etc. >> >> On Thu, Jun 2, 2016 at 9:01 PM, Colin Fleming < >> colin.mailingl...@gmail.com> wrote: >> >>> Have you looked at Specter? I actually don't know if it uses transients >>> under the hood or not, or if you can make it do so, but it seems like a >>> good fit for the data manipulation problem, at least. >>> >>> On 3 June 2016 at 14:43, Mark Engelberg <mark.engelb...@gmail.com> >>> wrote: >>> >>>> Let's say I have an object represented by a series of nested maps: >>>> >>>> {:a {:b 1} :c {:d 2}} >>>> >>>> and now I'm going to be making a whole slew of edits to the submaps. >>>> >>>> To do this efficiently, I need to make all the levels of the map >>>> transients, because any update to the inner map also updates the outer map: >>>> >>>> (transient {:a (transient {:b 1}), :c (transient {:d 2})}) >>>> >>>> and then at the end I need to do a nested persistent! operation. >>>> >>>> However, there aren't good facilities for dealing with nested >>>> transients, for example, there's no assoc!-in. So it's a real pain to work >>>> with. >>>> >>>> Has anyone dealt with this already, and developed a suite of tools for >>>> working with nested transients, or other techniques for making batch >>>> updates efficient for deeply nested objects? >>>> >>>> -- >>>> 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. >>>> >>> >>> -- >>> 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. >>> >> >> -- >> 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. >> > > -- > 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. > -- 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.
