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00:45 mithos28: are the racket bugs getting moved to github? I remember something like that in the works.
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00:57 jyc: is there a stable IRC client library for racket?
00:57 mithos28: jyc: I don't think so
00:58 jyc: mithos28: thanks
00:58 mithos28: You might want to look at rudybot though
00:58 mithos28: https://github.com/offby1/rudybot/
00:58 mithos28: rudybot: say hello
00:58 rudybot: mithos28: hello, I am wondering if it is possible to edit with other-user privileges (sudo) on a *remote machine*. the local OS is windows.
00:59 jyc: mithos28: interesting, thanks again
00:59 mithos28: Its our resident bot, so it likely has all of what you need but not in a nice library
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01:20 DrDuck1: Why doesn't a procedure like this, from SICP, not work properly in Racket? https://gist.github.com/3329909
01:21 mithos28: What is the problem with it?
01:21 DrDuck1: The error is "reference to an identifier before its definition: A"
01:22 mithos28: What is your whole program?
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01:22 mithos28: because that part is fine
01:23 DrDuck1: That is the whole program along with #lang planet neil/sicp at the top
01:24 mithos28: It works for me
01:24 mithos28: Are you sure that is your entire program
01:25 mithos28: Because you aren't calling A anywhere in it, and I assume you would want to do tha
01:25 mithos28: t
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01:27 DrDuck1: Yes, I'm sure. When I use plain old #lang racket, it works properly. This will do fine. Thanks for testing it out for me! :D
01:28 mithos28: no problem
01:30 offby1: "not in a nice library" is an understatement.
01:30 offby1: I've rewritten it from scratch twice and it's still a mess :-|
01:31 mithos28: Eh, its not all in one big file
01:31 offby1: it almost is.
01:31 offby1: irc-process-line or something if I recall correctly.
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09:46 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/x6xAhg
09:46 RacketCommitBot: [racket/master] Add the contents of the "blue boxes" in the docs to the upper-right - Robby Findler
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09:51 Haffe: Ok.
09:51 Haffe: Hello people.
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11:00 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/ft3_5Q
11:00 RacketCommitBot: [racket/master] Histogram plots support lists as well as vectors of data. - Ray Racine
11:00 RacketCommitBot: [racket/master] Altered a couple of tests to test list-of-lists histogram arguments - Neil Toronto
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15:02 _gcr: hey, can I catch SIGTERM?
15:03 mithos28: Probably, is sigterm caused by ^C or ^\?
15:03 _gcr: Not sure. I know ^C sends SIGINT which racket interprets as a break
15:03 _gcr: SIGTERM is what you get when you say 'killall racket'
15:03 _gcr: and SIGKILL, which can't be caught, is 'killall -9 racket'
15:04 mithos28: So likely you can catch it by going down to the c level and installing a signal handler
15:04 _gcr: Hm. No way from racket?
15:04 _gcr: I'd just like to clean up some temporary files when emacs kills an inferior racket process
15:05 mithos28: It doesn't exist in Windows.
15:05 mithos28: ah look at custodians
15:05 mithos28: Those are for resource cleanup
15:06 mithos28: rudybot: doc custodian
15:06 rudybot: mithos28: your sandbox is ready
15:06 rudybot: mithos28: not found in any library's documentation: custodian
15:06 mithos28: rudybot: doc current-custodian
15:06 rudybot: mithos28: http://docs.racket-lang.org/reference/custodians.html#(def._((quote._~23~25kernel)._current-custodian))
15:07 _gcr: oh yes, i remember some chatter about this on the mailing list recently. i'm not sure if there's a way to add a hook that gets executed when the current custodian dies
15:08 _gcr: ew. maybe i should just have emacs clean up the temp files then.
15:09 mithos28: You might also want to look at wills, those are for cleanup aswell
15:09 mithos28: specifically custom cleanup
15:10 _gcr: aha, this could be good. ok
15:11 mithos28: I don't know how forceful a sigterm is to racket though, I expect it tries to clean up as much as it can though
15:13 _gcr: yeah, i wouldn't be surprised if the will executor never has a chance to run
15:13 mithos28: Why are you creating temp files to begin with?
15:14 _gcr: I'm adding inline images to Geiser's REPL, the same way DrRacket does it for picts
15:14 _gcr: Racket passes the temporary image to geiser
15:14 _gcr: then one of them should be responsible for cleaning it up after emacs opens / displays it
15:15 mithos28: and you are passing a file path between the proccess?
15:15 _gcr: Right now, I am. I could also base64-encode the image or something which would be conceptually simpler albeit much less efficient
15:16 mithos28: I was thinking passing instead of passing a file descriptor
15:17 _gcr: you mean passing the base64 image or something like that?
15:20 mithos28: no instead of passing the string to the location of the file say '/tmp/EA345.tmp'
15:20 mithos28: you pass the file descriptor
15:20 mithos28: This would still likely require going down to C though
15:21 _gcr: Passing it across processes? That could be complicated, yeah
15:22 mithos28: Cleaning up tmpfiles is complicated as well (if you go outside the language, i.e. SIGTERM).
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16:51 RacketCommitBot: [racket] plt pushed 3 new commits to master: http://git.io/kxKJEQ
16:51 RacketCommitBot: [racket/master] remove experimentation code (that I should have removed earlier) - Robby Findler
16:51 RacketCommitBot: [racket/master] fix annotations-mixin for new syncheck interface - Robby Findler
16:51 RacketCommitBot: [racket/master] add note to history - Robby Findler
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17:21 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/uu21pA
17:21 RacketCommitBot: [racket/master] enable online check syntax (change the default for - Robby Findler
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17:28 mithos28: I'll have to try it out, I attempted to do this before but with embeding a webbrowser in racket and providing a view and mangling the css.
17:29 mithos28: It only sorta worked
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17:51 darkf: how do I determine if a string is numeric?
17:51 mithos28: rudybot: (string->number "45689")
17:51 rudybot: mithos28: ; Value: 45689
17:51 mithos28: rudybot: (string->number "ABC")
17:51 rudybot: mithos28: ; Value: #f
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17:51 mithos28: rudybot: (string->number "123ABC" 16)
17:51 rudybot: mithos28: ; Value: 1194684
17:52 mithos28: rudybot: doc string->number
17:52 rudybot: mithos28: http://docs.racket-lang.org/reference/generic-numbers.html#(def._((quote._~23~25kernel)._string-~3enumber))
17:52 mithos28: darkf: is that what you needed?
17:52 darkf: mithos28: yep, I thought there was a better way than to check if it returns #f :)
17:53 mithos28: nope, thats why it returns #f instead of erroring
17:53 darkf: :)
17:53 darkf: alrighty thanks
17:58 soegaard: darkf: BTW. Evaluation order is specified to to be left-to-right in Racket. http://docs.racket-lang.org/guide/application.html?q=evaluation%20order#(part._.Evaluation_.Order_and_.Arity) and http://docs.racket-lang.org/reference/application.html?q=evaluation%20order
17:58 rudybot: http://tinyurl.com/9ud9olv
18:00 darkf: soegaard: awesome :-)
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18:26 darkf: I can't seem to use ((eval '+) 1 2) from within my .rkt file, but it works in the REPL... it gives me this error: compile: unbound identifier (and no #%top syntax transformer is bound) in: +
18:27 mithos28: eval is bad, especially the one argument version
18:27 darkf: :( I'm writing a calculator and need to get the procedure + from '+ :)
18:27 mithos28: eval is overkill
18:28 darkf: what would you suggest?
18:28 mithos28: rudybot: (define (sym->func sym) (case sym ((+) +) ((*) *)))
18:28 rudybot: mithos28: Done.
18:28 darkf: ha
18:28 mithos28: rudybot: (sym->func '+)
18:28 rudybot: mithos28: ; Value: #<procedure:+>
18:29 mithos28: for your case with some limited number of operators, that is exactly what you want
18:29 darkf: that works, but it is a bit ugly :)
18:30 darkf: why does eval fail though?
18:30 mithos28: because of current-namespce
18:30 mithos28: current-namespace*
18:30 darkf: ah
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18:43 mithos28: asumu: I can replicate in DrRacket, but since there is a difference between racket and drracket I think something is up beyond TR
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19:04 mithos28: why are keyworded procedures so difficult?
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20:34 jyc: is there a good guide to/example of idiomatic racket? looking at the racket guide, there are so many features (so much information on contracts)
20:34 mithos28: jyc: http://www.ccs.neu.edu/home/matthias/Style/style/index.html
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20:38 jyc: mithos28: thanks again! also, would you say rudybot is a good example racket program?
20:39 mithos28: I haven't looked at the code, but offby1 said that it is in horrible shape
20:39 mithos28: and he is the owner of it
20:39 jyc: oh, heh
20:39 jyc: do you know of one, then?
20:40 mithos28: I would say to look around the core libraries
20:41 mithos28: I'm not sure what you want to see
20:42 jyc: alright, will do that. looking for something like a modular server, to see how one'd handle that in racket
20:42 wtetzner: did syntax parse change?
20:42 wtetzner: this example from the docs doesn't work in 5.3
20:43 wtetzner: http://pastebin.com/TumkGpHV
20:43 mithos28: wtetzner: try (require syntax/parse) first
20:44 wtetzner: ah
20:44 wtetzner: that works
20:44 wtetzner: thanks
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22:36 RacketCommitBot: [racket] plt pushed 7 new commits to master: http://git.io/-rXT8g
22:36 RacketCommitBot: [racket/master] doc fix - Matthew Flatt
22:36 RacketCommitBot: [racket/master] try to clarify gradient docs - Matthew Flatt
22:36 RacketCommitBot: [racket/master] add `ffi/unsafe/custodian' - Matthew Flatt
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