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11:42 DanBurton: Question about Typed Racket and Values http://pastebin.com/Hy4guAna
11:46 noelw: IIRC it should be (Values Integer Integer)
11:47 DanBurton: oh you're right. I copied it wrong >,<
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11:48 DanBurton: corrected: http://pastebin.com/FzBxJjWY
11:48 DanBurton: without the parens around (Values Integer Integer) it's an entirely different and helpful error message
11:49 DanBurton: with correct syntax, it says that Values is an unbound type name, even though the TR reference disagrees http://docs.racket-lang.org/ts-reference/type-ref.html#(form._((lib._typed-racket/base-env/base-types-extra..rkt)._.Values))
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11:52 rapacity: in the older versions I remember it used to be "values" the v lowercase
11:53 DanBurton: rapacity: oh hey look that makes it work :)
11:53 DanBurton: using DrRacket 5.1.3
11:55 rapacity: it works as expected on v5.2.1.3
11:55 rapacity: not sure when they made the change
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12:00 DanBurton: upgraded to the regularly distributed 5.2, capitalized Values as a type works correctly
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12:44 DanBurton: translating a file to typed racket. Finally got past the trivial errors, now it apparently makes it to the next pass of typechecking. 111 type errors encountered xD
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12:59 ASau: Hm.
12:59 ASau: Who is moderating development list then?..
13:00 ASau: eli?
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13:22 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/WcBSdw
13:22 RacketCommitBot: [racket/master] improve docs for `cast' with warnings about potential bugs - Matthew Flatt
13:22 RacketCommitBot: [racket/master] racket/gui: correct some casts in GUI bindings - Matthew Flatt
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13:44 eli: ASau: I let it through, but sending an email and waiting for my approval is a very bad way of doing it.  Please see the reply that was sent and subscribe to the list.
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14:35 ASau: eli: alright, at list you provide the feature of not getting all the mail from the list.
14:36 eli: ASau: Not me, it's a standard mailman feature, and I didn't see any mailing list that didn't have it.
14:36 offby1: eli: any notion what might be causing rudybot to complain about "`exists' access denied for /usr/local/src/rudybot/"?
14:36 offby1: rudybot: (dict-update '((a . 9) (b . 2) (a . 1)) 'a add1 0)
14:36 rudybot: *offby1: error: current-directory: `exists' access denied for /usr/local/src/rudybot/
14:36 offby1: tewtally baffling
14:37 eli: offby1: Probably contracts.  There was a recent discussion about the problem and how it could be resolved.
14:39 (nick) samth_away -> samth
14:41 samth: eli: offby1 wouldn't have seen that discussion though, since it was in a bug
14:42 eli: It doesn't matter though.
14:49 offby1: hm, rudybot doesn't use contracts.
14:49 offby1: I don't think.
14:49 offby1: unless you're talking about contracts being used internally by some racket library or other.
14:49 samth: offby1: there are contracts in racket/dict
14:50 offby1: ah, ok
14:56 jaimef: wow offby1 is here
14:56 jaimef: and rubybot :P
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14:58 eli: offby1: Yes, it's using a contracted function that seem to trigger it.  I can find the bug number if you really want to see the details.  (But it's really not important, since there's no much you can do ATM besides including these paths explicitly.)
15:01 offby1: jaimef: this is surprising?
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15:01 offby1 is always here
15:03 offby1: eli: hm.  It _would_ be nice to have a workaround.  When you say "including these paths explicitly", do you mean adding something like (require "collects/dict/whatever.rkt")?
15:06 (quit) anRch: Quit: anRch
15:09 jaimef: offby1 I was thinking I knew you from another channel
15:10 eli: offby1: Try to put this somehwere at the beginning: (sandbox-path-permissions '([exists "/"]))
15:10 eli: or around the point that creates a sandbox.
15:10 eli: It allows "exist" queries for any path in the system, but that's not a big deal in terms of security.
15:12 eli: (But I think that it's sufficient to include only the paths in your $PATH since those are those that lead to the problem.  Not sure about it though.)
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15:14 offby1: eli:  will d.
15:14 offby1: eli:  will do.
15:15 offby1: Oh, I'll probably have to reboot rudybot though, since the automatic module reloading hasn't worked in a while.  (Although I wouldn't be surprised if it's broken for exactly this same reason, so perhaps this'll be the last reboot I'll need.)
15:17 eli: offby1: IIRC, the sandbox file is not a reloadable one.
15:17 offby1: there is also that
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16:02 offby1: OK, rebooting rudybot now
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16:03 offby1: rudybot: (dict-update '((a . 9) (b . 2) (a . 1)) 'a add1 0)
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16:04 offby1 drums fingers
16:04 rudybot: offby1: error: with-limit: out of time
16:04 offby1: figures
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16:15 offby1: gaah, adding the "exists" permission merely replaced one bug with another:
16:15 offby1: rudybot: (dict-update '((a . 9) (b . 2) (a . 1)) 'a add1 0)
16:15 rudybot: offby1: error: car: expects argument of type <pair>; given #f
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16:37 scyrmion: I might be unattentive, but how do you search planet?
16:37 scyrmion: Is it limited to only the list on that front page?
16:38 samth: scyrmion: yes
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17:06 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/qY7mnQ
17:06 RacketCommitBot: [racket/master] Sort out stuff around `timeout-control'. - Eli Barzilay
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17:09 eli: rudybot: (dict-update '((a . 9) (b . 2) (a . 1)) 'a add1 0)
17:09 rudybot: eli: your sandbox is ready
17:09 rudybot: eli: error: car: expects argument of type <pair>; given #f
17:10 (quit) karswell__: Ping timeout: 240 seconds
17:11 eli: rudybot: (version)
17:11 rudybot: eli: ; Value: "5.2"
17:11 eli: offby1: (No idea what's wrong.)
17:20 offby1: :-(
17:20 offby1: well, on the plus side, I figured out how to emulate "clearenv" on OS X
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17:54 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/HXKjDw
17:54 RacketCommitBot: [racket/master] Updated HISTORY. - John Clements
17:59 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/M8aA8w
17:59 RacketCommitBot: [racket/master] PLoT documentation for new renderers and plot/utils (code changes are only to move code around so a previously public function could be public again) - Neil Toronto
17:59 RacketCommitBot: [racket/master] Removed test byproducts accidentally committed in d020c75202f92873d02998b81bfc4085506df5cf - Neil Toronto
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18:07 danlndi: is there a way to do keyword named parameter syntax?
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18:12 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/Ef50iw
18:12 RacketCommitBot: [racket/master] db: added #:use-sources for db/base exports - Ryan Culpepper
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18:39 offby1: danlndi: not sure what you mean.  Racket certainly allows you to define functions that take keyword arguments.
18:40 offby1: rudybot: doc keyword
18:40 rudybot: offby1: no docs for a current binding, but provided by: syntax/parse
18:40 offby1: rudybot: doc keyword?
18:40 rudybot: offby1: http://docs.racket-lang.org/reference/keywords.html#(def._((quote._~23~25kernel)._keyword~3f))
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18:50 ozzloy: rudybot, hug!
18:50 rudybot: ozzloy: lets hug, and cuddle.
18:50 ozzloy: 0.0
18:50 ozzloy: unexpected
18:51 offby1: EBOTCREEPY
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19:38 bremner: anyone know if I can just reply by mail to the Racket bug tracker?
19:39 offby1: you'd think I'd know that
19:41 jonrafkind: you can yes
19:42 bremner: it uses the subject?
19:43 jonrafkind: to correlate your response with the bug? i dunno
19:43 jonrafkind: probably
19:43 jonrafkind: it works if you dont mess with it
19:51 danlndi: offby1: i'm looking for syntax transformers that take keyword parameters
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20:09 danlndi: I've triggered a "<something>: expects args of type <struct:internal-name>; given instance of a different <struct:internal-name>" error. But they are the same structure types!
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21:52 RacketCommitBot: [racket] plt pushed 4 new commits to release: http://git.io/QHGAEA
21:52 RacketCommitBot: [racket/release] try to fix Win64 installer: "Program Files (x86)" => "Program Files" - Matthew Flatt
21:52 RacketCommitBot: [racket/release] Updated HISTORY. - John Clements
21:52 RacketCommitBot: [racket/release] PLoT documentation for new renderers and plot/utils (code changes are only to move code around so a previously public function could be public again) - Neil Toronto
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22:24 offby1: danlndi: I've seen that too; don't know what causes it
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23:07 ben_: i have a question
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23:08 ben_: is there a  function that choose a picture from a select group?
23:08 ben_: like if i have 50 pictures and it'll pick 1 of those at random
23:09 ben_: anyone there?
23:10 jonrafkind: whats a group
23:10 jonrafkind: a list?
23:10 jonrafkind: you could do (list-ref group (random (length group)))
23:10 ben_: idk I'm trying to create a black jack function and i defined 52 cards with images
23:10 ben_: im in highschool messing around
23:11 ben_: so it needs to select a random card of if possible
23:12 ben_: kk i think i can make that work thanks
23:13 mithos28: ben_: you might also want to look at shuffle from racket/list
23:13 mithos28: rudybot: doc shuffle
23:13 rudybot: mithos28: your sandbox is ready
23:13 rudybot: mithos28: http://docs.racket-lang.org/reference/pairs.html#(def._((lib._racket%2Flist..rkt)._shuffle))
23:14 ben_: lots of thanks
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23:28 ben_: So I'm new to Programming, DrRacket and lists, if this is not what this chat is for please tell me so I'm not bother anyone but..
23:28 ben_: If I were to create a list for this function it would be like  (list *card image* *card image* etc) or somthing like that then (list-ref list (random (length list)))
23:29 jonrafkind: yea pretty much
23:31 ben_: do i need to define a list like cardlist or something?
23:31 jonrafkind: yea
23:31 jonrafkind: (define cardlist (list ...))
23:36 ben_: Last question (define cardlist (list card1 card2 etc.))   -    (list-ref cardlist (random (length cardlist))) is there a way to mark something as selected?
23:37 ben_: so it won't choose something twice
23:37 offby1: why not shuffle the list, then cdr down that?
23:37 jonrafkind: offby1, now try again, but pretend you're talking to a beginner
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23:38 ben_: yes I'm in high school and have been sort of teaching myself racket a lot doesn't make sense
23:38 offby1: rudybot: (let ([deck (build-list 52 values)]) (let loop ([shuffled (shuffle deck)]) (when (not (null? shuffled)) (printf "Fiddling ~a~%" (car shuffled)) (loop (cdr shuffled)))))
23:38 rudybot: offby1: ; stdout: "Fiddling 11\nFiddling 18\nFiddling 46\nFiddling 0\nFiddling 29\nFiddling 1\nFiddling 8\nFiddling 9\nFiddling 12\nFiddling 41\nFiddling 25\nFiddling 22\nFiddling 31\nFiddling 23\nFiddling 48\nFiddling 14\nFiddling 32\nFiddling 44\nFiddling 2\nFiddling 13\nFiddling 27\nFiddling 21\nFiddling 45\nFiddling 51\nFiddling 33\nFiddling 40\nFiddling 36\nFiddling 10\nFiddling 50\nFiddling 38\nFiddling 26\nFiddling
23:39 offby1: why not shuffle the list, then process each element of that shuffled list in turn?
23:39 offby1: (better?)
23:39 offby1: being in high school is no excuse!
23:39 ben_: yes I can try and figure that out and i know =p
23:40 offby1 waggles a finger
23:40 offby1: why, when I was your age ...
23:40 offby1: etc etc
23:40 offby1: actually somewhere I have a program that deals out a deck of cards ...
23:41 ben_: what I'm trying to do =) but mine has numerous problems
23:45 offby1: actually, to answer your question directly -- yes, there are lots of ways to mark something as selected.  I suspect doing so is a bad idea, but you can do it.
23:45 offby1: One way is to keep another variable that is, say, a set of cards.
23:46 offby1: you could look in the set to see if a card has already been chosen; then if you do choose it, you add the card to the set.
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23:46 offby1: This would probably be slower than ideal, since towards the end, you'd have to try and fail about 51 times before you stumbled onto the one remaining unchosen card.
23:48 ben_: oooooh I see, and I understand before so I shuffle the list and then select the card at random
23:48 offby1: well, not quite
23:48 ben_: oh
23:48 offby1: I'd shuffle the list, and then I'd just select the first card from that shuffled list ... then I'd select the second card ... then the third ... etc
23:48 offby1: that way I'm choosing the cards at random
23:48 offby1: and it's super-easy
23:48 offby1: rudybot: (build-list 10 values)
23:48 rudybot: offby1: ; Value: (0 1 2 3 4 5 6 7 8 9)
23:48 offby1: rudybot: (shuffle (build-list 10 values))
23:48 rudybot: offby1: ; Value: (6 7 5 2 0 3 4 8 9 1)
23:49 offby1: rudybot: (for ([card (shuffle (build-list 10 values))]) (displayln card))
23:49 rudybot: offby1: ; stdout: "4\n3\n2\n7\n1\n8\n0\n9\n6\n5\n"
23:49 offby1: etc etc
23:49 offby1: rudybot:  (values (shuffle (build-list 5 values)))
23:49 rudybot: offby1: ; Value: (2 0 4 3 1)
23:49 offby1: rudybot:  (apply values (shuffle (build-list 5 values)))
23:49 rudybot: offby1: ; Value: 4
23:49 rudybot: offby1: ; Value#2: 0
23:49 rudybot: offby1: ; Value#3: 1
23:49 rudybot: offby1: ; Value#4: 2
23:49 rudybot: offby1: ; Value#5: 3
23:49 offby1 whistles innocently
23:50 ben_: yes I see what you are saying
23:50 offby1: \o/
23:50 offby1: the less bookkeeping, the better, I say.
23:52 ben_: I will experiment wit this, thanks
23:52 offby1: keep coming back!
23:52 offby1: one day at a time!
23:53 (nick) ASau` -> ASau
23:53 ben_: I will and ill try and finish this one thing tongiht
23:56 ben_: Will certain functions not be available depending on my language I selected at bottom of DrRacket, mine is beginning student
23:57 offby1: exactly.
23:58 offby1: the student languages are, if I understand correctly, designed to be easy to understand and explain, and to give good error messages.
23:58 offby1: for reasons I don't understand, this requires that they not include some functions.
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23:59 ben_: yeah, that makes sense a guess shuffle isn't beginner Ill change it now