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07:47 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/QkGopA
07:47 RacketCommitBot: [racket/master] Synch German string constants with latest. - Mike Sperber
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09:38 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/XnkjQg
09:38 RacketCommitBot: [racket/master] adjust initial value to be something less likely to cause problems - Robby Findler
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11:21 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/XGq76w
11:21 RacketCommitBot: [racket/master] adjst check syntax so that it only clears out style changes when clicking 'Run' - Robby Findler
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11:59 yoklov: Hm, opening files on the mac in drracket doesn't work unless you do it from within drracket.
12:00 bremner: yoklov: I can't help, except to point out I could not parse your statement.
12:00 bremner: oh, you mean double-clicking or using "open"?
12:00 yoklov: double-clicking does not work, nor does right click -> open with drracket
12:01 yoklov: this is on 5.1.3.10 on lion
12:01 bremner: hopefully some mac using person will read your question and reply
12:02 yoklov: running 'drracket filename' from the command line doesnt work either
12:02 yoklov: it seems like a bug,
12:02 yoklov: but maybe it's just me.
12:02 bremner: it works on Linux
12:02 yoklov: yeah
12:02 yoklov: my desktop has linux
12:03 yoklov: drracket in linux is far more pleasant than on mac
12:03 bremner: so much for "Mac is really Unix" ;)
12:03 yoklov: haha, yeah.
12:04 yoklov: lately i've been using emacs over drracket on my laptop, which runs mac, but when i'm doing grading, students often submit files in the gracket editor format which requires drracket
12:05 yoklov: its not terribly hard to open files within drracket though so i don't really care that much
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12:39 Gertm: To search for a character in a string (get the index of it) what would be the idiomatic way? Or am I thinking about this the wrong way? Been stuck in imperative/oo for a while.
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12:40 bremner: Gertm: there is probably a function for that
12:40 Gertm: So how would I go about finding that function?
12:40 bremner: docs.racket-lang.org
12:41 Gertm: Heh ok. I'll search a little longer.
12:42 bremner: you might need srfi/13
12:42 bremner: string-index
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12:52 bremner: Gertm: http://paste.debian.net/133673/
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12:57 braveryedo: hello
12:57 Gertm: Thanks bremner.
12:58 braveryedo: anybody here have the HTDP textbook?
12:58 bremner: braveryedo: you know it is on-line right?
12:58 braveryedo: yeah
12:59 braveryedo: i have the book infront of me
12:59 braveryedo: was wondering if someone could help xD
12:59 braveryedo: with a problem
12:59 bremner: well, just ask, and see what happens.
13:00 braveryedo: mmm, so on page 56, exercise 6.2.2 wants a clear-bulb function to be written, i was wondering how to specify what shape to clear if you had more than one on the scene
13:02 braveryedo: oh lol just read page 55 over again
13:02 braveryedo: he answer is on there T_T
13:02 braveryedo: my fail
13:02 bremner: glad we could help ;)
13:02 braveryedo: lol thanks
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13:59 Blkt: good evening everyone
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15:13 (nick) samth_away -> samth
15:14 samth: mithos28: in drracket, printing syntax objects produces a more useful result
15:14 samth: also, the step before you get the error from `unsyntax' should show up in the macro stepper
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15:19 mithos28: samth: drracket is nicer, but still does not show enough, and the macro stepper expands either way too much or not enough
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15:24 samth: mithos28: an awful lot of the time, you need to just turn of macro hiding in the macro stepper, and work that way
15:26 mithos28: which doesn't work well when you need to expand more than 1 syntax case, because that gets fully expanded, and if you don't expand that, it doesn't like expanding the macro that is implemented with syntax case
15:32 samth: mithos28: i tend to just deal with the huge expansions
15:34 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/uhzJpg
15:34 RacketCommitBot: [racket/master] add get-default-percentages to panel:dragable and then add a dragable panel - Robby Findler
15:35 mithos28: i sometimes can deal with it, but other times it is easier to go back to printf
15:36 mithos28: I think I just got my macro to work, with a judicious use of datum->syntax
15:41 mithos28: is (datum->syntax ctx stx) supposed to transfer the context information over to stx or use stx's context if it is a syntax object
15:43 samth: mithos28: the latter
15:44 samth: datum->syntax is the identity on syntax objects
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16:34 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/1i3l2w
16:34 RacketCommitBot: [racket/master] syntax/parse: fix check-literals code (references to disappearing names) - Ryan Culpepper
16:34 RacketCommitBot: [racket/master] added functions, docs for show-dependencies - Ryan Culpepper
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18:18 wtetzner: is there a good way to test if my finalizer is being called?
18:19 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/OSBVmQ
18:19 RacketCommitBot: [racket/master] fixed another path/string bug in the autosave recovery dialog - Robby Findler
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18:20 samth: wtetzner: print something in your finalizer
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18:21 samth: or use logging, to avoid output buffering issues
18:22 wtetzner: hmm, it seems like it's not being called
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18:33 wtetzner: should this be printing "finalizing"? http://pastebin.com/JeCCWqf9
18:33 wtetzner: or am i missing something?
18:33 wtetzner: maybe it's just not being collected yet?
18:38 samth: wtetzner: try this: http://pastebin.com/WitcyCX3
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18:47 wtetzner: samth: thanks, that worked
18:48 wtetzner: so the finalizer is probably fine on my smaller object, it's just not being collected yet
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18:53 samth: wtetzner: yes, and probably not ever
18:54 wtetzner: hmm, ok
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19:01 wtetzner: samth: actually, it works with (make-vector 1)
19:01 wtetzner: is there something special about cons cells?
19:07 tauntaun: /query mightbyte
19:07 tauntaun: argh :)
19:07 mithos28: wtetzner: are you using quote like you were in your first example?
19:08 wtetzner: mithos28: yes
19:08 mithos28: because then it is stored as a constant in the module IIRC
19:08 wtetzner: ah, so if i use (list ...) it works
19:08 wtetzner: cool
19:08 mithos28: it should
19:09 wtetzner: yep, if i do (list 1) it works
19:09 wtetzner: thanks
19:15 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/W3pqUg
19:15 RacketCommitBot: [racket/master] fix my stupidity - Robby Findler
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20:49 mithos28: can any one with really good macro-fu explain the output of this program to me?
20:49 mithos28: https://gist.github.com/1258195
20:49 mithos28: I'm getting 5 4 4 4. But I don't understand why the first one behaves differently.
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21:06 wtetzner: mithos28: i get the same results
21:06 wtetzner: and the first two look the same after expanding with the macro stepper
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21:08 mithos28: The first two are the most interesting ones, because I'm not sure why making it an expression should change anything
21:11 wtetzner: the only think i can think of is that #%expression changes the lexical data on the syntax
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21:13 (nick) askhader -> qxi_
21:13 mithos28: I think it is actually a bug in internal definitions and that the remaining forms are not enriched with the changed five binding until after the partial expansion is done
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22:55 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/FCV-hA
22:55 RacketCommitBot: [racket/master] Fixed error messages, added tests for type errors. - Stephen Bloch
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