OK, if I follow your posts correctly you now agree with me that this is unpleasant behavior :-)
On Saturday, February 9, 2013 1:35:48 PM UTC-6, AtKaaZ wrote: > > So, I basically thought that this is what's happening in your case also > (but it's not!): > => (map println '(1 2 3)) > (1 > 2 > nil 3 > nil nil) > => (= '(nil nil nil) (map println '(1 2 3))) > 1 > 2 > 3 > true > > ;so your case is different due to pr-str and pr > > => (def k (pr-str (for [x (range 5)] > (do (pr x) > x)))) > #'user/k > => k > "(012340 1 2 3 4)" > => (= "(012340 1 2 3 4)" k) > true > > Sorry for the noise, indeed it seems like pr-str is just redirecting *out* > until done using with-out-str. > This is certainly much more severe that I thought initially. > > => (def k (pr-str (for [x (range 5)] > (do (pr x) > (println "nothing") > x)))) > #'user/k > => k > "(0nothing\r\n1nothing\r\n2nothing\r\n3nothing\r\n4nothing\r\n0 1 2 3 4)" > => (= "(0nothing\r\n1nothing\r\n2nothing\r\n3nothing\r\n4nothing\r\n0 1 2 > 3 4)" k) > true > > This is so bad :) > > > On Sat, Feb 9, 2013 at 8:26 PM, AtKaaZ <atk...@gmail.com <javascript:>>wrote: > >> >> >> >> On Sat, Feb 9, 2013 at 8:25 PM, AtKaaZ <atk...@gmail.com <javascript:>>wrote: >> >>> >>> >>> >>> On Sat, Feb 9, 2013 at 8:22 PM, AtKaaZ <atk...@gmail.com >>> <javascript:>>wrote: >>> >>>> do you mean that, when the string it outputted like: >>>> => (println k) >>>> >>>> (012340 1 2 3 4) >>>> nil >>>> => (prn k) >>>> >>>> "(012340 1 2 3 4)" >>>> nil >>>> >>>> the side effects of evaluating k being mixed into the output could >>>> affect you (other than just visually in the repl) ? if ie. you redirect >>>> *out* to some file with the purpose of saving and later restoring that? >>>> >>>> Well, I don't actually like this myself (ever since I've encountered >>>> the map println example I've given) but I ignored it because people didn't >>>> seem to find it a big deal and nothing I could do about it + it only >>>> affected me in viewing REPL output. >>>> >>>> >>>> But I'm not sure if it is clear to you what is happening (perhaps I >>>> misunderstand what you're saying), it's only when showing the value of the >>>> string (k in this case) that the text shown is mixed, but the value of k >>>> is >>>> accurate, as seen below: >>>> >>>> On Sat, Feb 9, 2013 at 7:30 PM, Conrad <drc...@gmail.com >>>> <javascript:>>wrote: >>>> >>>>> I tested this in the latest 1.5.0-RC6: >>>>> >>>>> => (def k (pr-str (for [x (range 5)] >>>>> (do (pr x) >>>>> x)))) >>>>> #'user/k >>>>> => k >>>>> "(012340 1 2 3 4)" >>>>> >>>> => (= "[0 1 2 3 4]" k) >>>> true >>>> >>> OOps, I pasted the wrong one here (from the "vec" form) >>> But looks like I was wrong, and you were correct!! >>> >>> => (def k (pr-str (for [x (range 5)] >>> (do ;(pr x) >>> x)))) >>> #'user/k >>> => k >>> "(0 1 2 3 4)" >>> => (= "(0 1 2 3 4)" k) >>> true >>> >>> => (def k (pr-str (for [x (range 5)] >>> (do (pr x) >>> x)))) >>> #'user/k >>> => (= "(0 1 2 3 4)" k) >>> false >>> >> => (= "(012340 1 2 3 4)" k) >> true >> >> so it's not exactly like the example that I've given... I'll have to >> investigate more >> >>> >>> >>>> >>>> >>>> >>>> >>>> >>>> On Sat, Feb 9, 2013 at 8:03 PM, Conrad <drc...@gmail.com >>>> <javascript:>>wrote: >>>> >>>>> I agree when you print to stdout you'd expect lazily evaluated output >>>>> to be mangled in. >>>>> >>>>> However, it would seem more natural to me that if you print something >>>>> to a string it is counter intuitive for incidental writes to stdout to be >>>>> redirected to the string, as well- There is also nothing in the >>>>> documentation that suggests this would happen. >>>>> >>>>> Also, it would be technically relatively easy to change this. >>>>> >>>>> On Saturday, February 9, 2013 12:46:08 PM UTC-6, AtKaaZ wrote: >>>>> >>>>>> here's a simpler example: >>>>>> => (map println '(1 2 3)) >>>>>> (1 >>>>>> 2 >>>>>> nil 3 >>>>>> nil nil) >>>>>> => (dorun (map println '(1 2 3))) >>>>>> 1 >>>>>> 2 >>>>>> 3 >>>>>> nil >>>>>> >>>>>> >>>>>> >>>>>> On Sat, Feb 9, 2013 at 7:44 PM, AtKaaZ <atk...@gmail.com> wrote: >>>>>> >>>>>>> actually replacing vec with dorun or doall, would've been a better >>>>>>> example :) >>>>>>> >>>>>>> >>>>>>> On Sat, Feb 9, 2013 at 7:42 PM, AtKaaZ <atk...@gmail.com> wrote: >>>>>>> >>>>>>>> I think it's an illusion from being lazy ? >>>>>>>> => (def k (pr-str (vec (for [x (range 5)] >>>>>>>> ** (do (pr x) >>>>>>>> ** x))))) >>>>>>>> 01234 >>>>>>>> #'datest1.ret/k >>>>>>>> => k >>>>>>>> "[0 1 2 3 4]" >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> On Sat, Feb 9, 2013 at 7:30 PM, Conrad <drc...@gmail.com> wrote: >>>>>>>> >>>>>>>>> I tested this in the latest 1.5.0-RC6: >>>>>>>>> >>>>>>>>> => (def k (pr-str (for [x (range 5)] >>>>>>>>> (do (pr x) >>>>>>>>> x)))) >>>>>>>>> #'user/k >>>>>>>>> => k >>>>>>>>> "(012340 1 2 3 4)" >>>>>>>>> >>>>>>>>> This seems wrong to me... I can see what would be needed to fix it >>>>>>>>> in clojure/core.clj, but it would require creating several additional >>>>>>>>> private functions. Does anyone know if this behavior is intentional? >>>>>>>>> >>>>>>>>> -- >>>>>>>>> -- >>>>>>>>> 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<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<https://groups.google.com/groups/opt_out> >>>>>>>>> . >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> Please correct me if I'm wrong or incomplete, >>>>>>>> even if you think I'll subconsciously hate it. >>>>>>>> >>>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> Please correct me if I'm wrong or incomplete, >>>>>>> even if you think I'll subconsciously hate it. >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Please correct me if I'm wrong or incomplete, >>>>>> even if you think I'll subconsciously hate it. >>>>>> >>>>>> -- >>>>> -- >>>>> 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<javascript:> >>>>> 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 <javascript:> >>>>> 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 <javascript:>. >>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>> >>>>> >>>>> >>>> >>>> >>>> >>>> -- >>>> Please correct me if I'm wrong or incomplete, >>>> even if you think I'll subconsciously hate it. >>>> >>>> >>> >>> >>> -- >>> Please correct me if I'm wrong or incomplete, >>> even if you think I'll subconsciously hate it. >>> >>> >> >> >> -- >> Please correct me if I'm wrong or incomplete, >> even if you think I'll subconsciously hate it. >> >> > > > -- > Please correct me if I'm wrong or incomplete, > even if you think I'll subconsciously hate it. > > -- -- 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.
