Please reply to the list.
On Jun 10, 2012, at 4:50 PM, Harry Spier wrote: > Thanks Matthias, > > What I meant was something like this: > (sort '((9 9 9) (8 8 8) (8 9 8) (7 7 7) (7 9 7)) (> #:key first) (> > #key second)) >> '((9 9 9) (8 9 8) (8 8 8) (7 9 7) (7 7 7)) > > Also I'm not a member of the dev list (I thought my subscriptiion went > through but apparently it didn't) so if you could forward this, I'd > appreciate it). > > Harry Spier > > On Sun, Jun 10, 2012 at 4:39 PM, Matthias Felleisen > <[email protected]> wrote: >> >> >> On Jun 9, 2012, at 10:56 AM, Harry Spier wrote: >> >>> Would it be possible to extend the sort function to allow for multiple >>> keys to facilitate sorting lists of lists or lists of structs. >> >> >> It is possible to sort lists of lists and lists of structs: >> Welcome to DrRacket, version 5.3.0.10--2012-06-09(6b2419f1/d) [3m]. >> Language: racket. >>> (sort '((1 0 2) (9 7 8) (6 2 5)) > #:key second) >> '((9 7 8) (6 2 5) (1 0 2)) >> >> ;; --- >> >> Do you want to supply multiple comparisons for multiple keys? >> ____________________ Racket Users list: http://lists.racket-lang.org/users
