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04:34 (topic) -: Racket -- http://racket-lang.org -- logs at http://racket-lang.org/irc-logs/
04:34 (names) -: gabot Lunaqus karswell_ Shviller noelw bitonic ahinki Shambles_ hkBst dented42 em Nisstyre Shvillr bill_h SeanTAllen jrslepak ASau` cataska Demosthenes noam dsantiago dspt ivan\ alkabetz friscosam rudybot chemuduguntar DGASAU stchang blomqvist asumu SHODAN aidy acarrico maahes tewk pauls Guest99444 ChibaPet basepi hyko rajathshetty DraX eMBee Haffe stamourv samth_away dlind tauntaun gf3 eli jamessan snorble_ otterdam mario-goulart ivan` jschuster errstr
04:34 (names) -: dsp_ cky offby1 chandler bremner jrslepak_neu ozzloy rotty danking kandinski rapacity @ChanServ
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05:09 klaus: hi,I am reading Quick: An Introduction to Racket with Pictures
05:12 klaus: I have a question about how to wirte this expression without lambda.this expression is that (series (lambda (size) (checkerboard (square size))))
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08:00 Haffe: Hi people. I have a question about the racket object system. Does this system offer something similar to the this pointer? I.e. I have a variable called foo in a parent class, and I want to be able to access it in a child class.
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08:05 bremner: I don't know about the object system, but in general boxes act like pointers
08:06 bremner: oh, I did not parse "this pointer"
08:07 Haffe: The problem more specific is that I have a class that inherits from canvas.
08:07 bremner: yes, I missed the fact that you refered to C++/Java nomenclature
08:07 Haffe: In this my class, I want to define the update function and in function I would like to do something like (send this.dc draw-ellipsis )
08:09 jeapostrophe: Haffe: Yes, that's possible
08:10 Haffe: Ok, could you direct me to the relevant documentation please?
08:10 jeapostrophe: doc inherit-field
08:11 jeapostrophe: rudybot: doc inherit field
08:11 rudybot: jeapostrophe: expecting: doc <id>
08:11 jeapostrophe: rudybot: doc inherit-field
08:11 rudybot: jeapostrophe: your sandbox is ready
08:11 rudybot: jeapostrophe: http://docs.racket-lang.org/reference/createclass.html#(form._((lib._racket%2Fprivate%2Fclass-internal..rkt)._inherit-field))
08:11 jeapostrophe: Haffe: click that link
08:13 Haffe: Ok.
08:13 Haffe: So if I understand the syntax I can do (define child-class% (class parent-class% (super-new) (inherit foo))
08:14 Haffe: That lets every instance of child-class% access foo as a local variable.
08:15 Haffe: Oh, and it looks like there is a this keyword.
08:15 Haffe: Thanks very much for the help.
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08:19 jeapostrophe: np
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10:46 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/qnFuXw
10:46 RacketCommitBot: [racket/master] fix documentation example for `protect-out' - Matthew Flatt
10:46 RacketCommitBot: [racket/master] racket/draw: pens and brushes from lists should be immutable - Matthew Flatt
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10:51 samth: bill_h: the bug you reported was just fixed
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12:33 ChibaPet: Alright, I am having trouble figuring out how to compose λ. Can someone lend me a clue? (Lignux, UTF8.)
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12:51 asumu: ChibaPet: What do you mean by compose lambda?
12:52 ChibaPet: I want to type it into a terminal that's set to UTF8. Right now I can only do it if I manually switch my system to greek/polytonic.
12:53 asumu: Oh, I see. Not sure. I know how in emacs and vim, but not in general.
12:54 ChibaPet: How in Vim? Via vim-specific config?
12:54 asumu: Ctrl+k l *
12:54 asumu: (in insert mode)
12:55 ChibaPet: Oh, hm, that works.
12:55 asumu: You could bind a key shortcut to switch input modes if you want to type it into the REPL for example.
12:55 ChibaPet: Now I want to do that in a straight shell. :P
12:55 ChibaPet: hm
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15:19 stamourv: ChibaPet: You'd probably want to set something up with your Desktop Environment, or with something like xbindkeys.
15:19 stamourv: Personally, I use eli's emacs input method (and run shells from emacs), which is awesome.
15:23 bremner: how does that compare to geiser?
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15:25 bremner: if you happen to know, of course.
15:26 stamourv: I don't use Geiser. I've been meaning to check it out, though.
15:26 stamourv: But I was talking about an input method, for typing characters.
15:26 bremner: ah right. well, that can be managed in emacs in any number of ways I guess.
15:27 stamourv: Oh, so Geiser does that too?
15:28 ChibaPet: It seems like something that should be a reasonable method is setting up .XCompose, but that's not being invoked by the tools that I want to have invoke it. :P
15:30 bremner: stamourv: not directly afaik. I just meant in general it isn't hard to set that up in emacs.
15:31 stamourv: Right.
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15:34 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/BFUD4Q
15:34 RacketCommitBot: [racket/master] Fix local member info leak due to opaque class/c - Asumu Takikawa
15:34 RacketCommitBot: [racket/master] class/c: fix interaction w/ absent and #:opaque - Asumu Takikawa
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17:16 dyoo: If klaus ever reads irc logs
17:16 dyoo: klaus: you can do it by giving the function an explicit name
17:17 dyoo: (define (f size) (checkerboard (square size)))
17:17 dyoo: (series f)
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19:03 RacketCommitBot: [racket] plt created samth/acmsmall (+1 new commit): http://git.io/6qxoZA
19:03 RacketCommitBot: [racket/samth/acmsmall] start on acmsmall class - Sam Tobin-Hochstadt
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19:32 jonrafkind: stamourv, do you have a publication for the optimization stuff in typed racket?
19:33 jonrafkind: "where are you going with those types"
19:34 jonrafkind: was that published?
19:34 jonrafkind: ah presented at pldi 2011
19:34 jonrafkind: oops wrong one
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19:59 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/iicOvA
19:59 RacketCommitBot: [racket/master] scribble/bnf: add `BNF-seq-lines' - Matthew Flatt
19:59 RacketCommitBot: [racket/master] honu: add `error' to compile time - Matthew Flatt
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21:47 offby1: Do the docs contain a list of the various "magic" properties -- like prop:procedure -- that do interesting things to structs?
21:47 offby1: I can search the index for "prop:" but that makes me wonder if I'm missing some because their names don't contain "prop:"
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23:13 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/PieXZg
23:13 RacketCommitBot: [racket/master] [honu] add vim syntax file for honu - Jon Rafkind
23:13 RacketCommitBot: [racket/master] [honu] typo in parenthesis name for the color lexer - Jon Rafkind
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23:49 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/k_YjUg
23:49 RacketCommitBot: [racket/master] save modidx submodule path in bytecode form - Matthew Flatt
23:49 RacketCommitBot: [racket/master] fix sorting bug in bytecode submodule table - Matthew Flatt
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