00:03 rindolf: Oh well, I guess I'll have to use DrRacket.
00:05 neilv: Oh well, I guess I'll have to eat cookies.
00:05 rindolf eats neilv 
00:06 rindolf loves eating people who eat cookies.
00:06 neilv: people did say the racket community was friendly
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00:24 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/5yjOrQ
00:24 RacketCommitBot: racket/master 96d1400 Neil Toronto: Renamed functions...
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02:07 mithos28: Is there a way to parse c header files with racket?
02:09 neilv: there was a package in planet that looked like it was intended for that purposes
02:09 mithos28: It has issues on things like __inline__
02:10 mithos28: I'm trying to see if I can convince clang to not export those when processing the header
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02:11 neilv: wtf are these bug reports against my packages on planet
02:12 neilv: i don't know about most of these
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02:26 mithos28: I think the easiest way will be to just filter them out and then use that library
02:26 mithos28: ugh people should follow standards
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02:35 neilv: once again, planet has ruined my day
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02:37 jonrafkind: lol
02:38 sw2wolf: neilv: why
02:38 mithos28: success, i have parse a simple c header (modulo the fact that I deleted like 20 lines because they couldn't be parsed)
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06:16 MightyFoo: how do i export a class from a module? is it just (provide _class-name_) ?
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06:39 amgarching: Why does "mzscheme --load scheduling.scm" not understand cond-expand at the top: http://pastebin.com/ccyX4qNd First it complained about Guile section (repeated #:use-module keywords), I fixed that. Now it complains about "else": "not allowed as an expression in: (else (require ..." . What am I doing wrong. V5.1.3
06:39 amgarching: Hi, all!
06:40 amgarching: it appears that IRC messges occasionally overtake :-)
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07:01 noelw: Sorry, never used cond-expand
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07:01 noelw: but 1+ is add1
07:01 noelw: HTH
07:02 dca_: hi.
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07:02 dca_: is it possble to compile racket program to C?
07:02 dca_: not touch the eval
07:02 amgarching: It appears that ~/.mzschemrc is only read when I do "mzscheme -i" cond-expand syntax is defined there. I am sure I was running this code from the command line too.
07:03 noelw: dca_: Can you give a clearer idea of your requirements?
07:03 noelw: Why do you want to do this?
07:04 noelw: Depending on what you want, it might be possible
07:04 dca_: i want to write solution to programming contests in racket
07:04 dca_: sadly none graders of that i know accept racket
07:04 noelw: You can create an executable
07:04 dca_: so compiling solutions to C might be interesting
07:05 dca_: they want the source
07:05 noelw: Racket can compile to C, but I'm not sure this is maintained anymore
07:06 noelw: and you'd still need the runtime library
07:06 noelw: for, e.g. the garbage collector
07:06 noelw: \
07:06 dca_: yeah that's right
07:06 dca_: so the short answer is no
07:07 noelw: Yes
07:07 dca_: thx
07:07 noelw: no problem
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07:27 amgarching: Hm. "The problem is that racket does not support cond-expand."  From here: http://www.mail-archive.com/readable-discuss@lists.sourceforge.net/msg00727.html  (year 2012). That is unfortunate.
07:27 rudybot: http://tinyurl.com/cu473x5
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07:40 amgarching: PLT is standing quite alone there http://srfi.schemers.org/srfi-implementers.html (the only one that does not support srfi-0). I see, it must be something personal.
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07:43 RacketCommitBot: [racket] plt pushed 3 new commits to master: http://git.io/y5UpOg
07:43 RacketCommitBot: racket/master 3aa74f2 Matthew Flatt: slideshow: fix import that changed the style of legacy libraries
07:43 RacketCommitBot: racket/master 46fb91c Matthew Flatt: update pre-built binary path for a win32 patch...
07:43 RacketCommitBot: racket/master f847b76 Matthew Flatt: win32: make "build.bat" work with VCExpress...
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09:48 asumu: amgarching: If you're looking for sweet expressions, I ported an older version a few years ago.
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10:03 ijp: amgarching: most people don't even use srfi-0 any way
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11:32 Jarod-: hi
11:33 mithos28: Jarod-: Hello
11:38 Jarod-: I searched for hours and couldn't find an answer : is it possible to use 3d engines with racket ? should I use SWIG for that matter ?
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11:38 mithos28: Its possible to use any foreign library
11:38 mithos28: racket has its own interface language which is much more powerful than swig
11:39 mithos28: http://docs.racket-lang.org/foreign/index.html?q=foreign
11:39 mithos28: I'm not sure if there are already any ports of any 3d engines
11:39 Jarod-: thanks
11:39 mithos28: What is a 3d engine you are thinking about?
11:40 mithos28: I assume something above open gl
11:40 Jarod-: I saw Ogre
11:40 Jarod-: there is Torque too
11:41 mithos28: haven't heard anyone make bindings to those
11:42 Jarod-: the thing is I didn't saw a single webpage about using a 3d engine with racket, which is why I started to worry ^^
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11:43 mithos28: jay has done some stuff with 2d game engines
11:43 dca_: no 3D engine port? let's make our own!
11:44 dca_: unity3D port to rkt would be nice i guess
11:54 asumu: Oh, weird. This doesn't work: https://gist.github.com/4162486
11:54 asumu: Neither does putting the module declaration in the body.
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11:54 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/B_8-TQ
11:54 RacketCommitBot: racket/master 52d0b7e Robby Findler: Possible fix for error raised by build-rectangle...
11:54 RacketCommitBot: racket/master ad2e8ac Robby Findler: fix error check on the result of place-children...
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11:56 asumu: It works if it's a module, but not a module*
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12:00 asumu: Hmm, and if you do (begin-for-syntax (raise "foo")) it seems background expansion gets caught in a loop.
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12:04 asumu: Oh, that's not a bug, that's just how submodules work. Ugh.
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12:07 stamourv: asumu: Re not working with `module*': that causes circular dependencies IIUC.
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12:15 asumu: stamourv: yeah, I realized that after sending the e-mail...
12:16 asumu: Also, you can make background expansion do weird things with begin-for-syntax.
12:20 asumu: Also, I like how (unsafe-car #f) = not
12:21 stamourv: ?
12:22 asumu: Try it.
12:22 asumu: rudybot: (require racket/unsafe/ops)
12:22 rudybot: asumu: Done.
12:22 asumu: rudybot: (unsafe-car #f)
12:22 rudybot: asumu: error: #<undefined>:1:1: compile: access disallowed by code inspector to protected variable from module: '#%unsafe in: unsafe-car
12:22 asumu: Oh, no fun.
12:23 mithos28: asumu: Use TR and a soundness bug
12:44 mithos28: has any work been done on a typed library for the FFI?
12:47 stamourv: asumu: I get `equal?'
12:47 (quit) MightyFoo: Quit: night all!
12:47 stamourv shrugs.
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13:16 neilv: i've started a new little library for people who want their racket app to be hardcore about free software... http://www.neilvandyke.org/weblog/2012/11/#2012-11-28
13:20 asumu: stamourv: oh huh, on both my machines I got `not`. So my plan of (define-syntax-rule (not x) ((unsafe-car #f) x)) has failed.
13:20 asumu: neilv: my first thought was "Racket RMS"?
13:20 neilv: asumu: yes, like vrms
13:21 asumu: Oh, and it actually does work like vrms. Very nice.
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13:24 jonrafkind: i like how you blur out your lan ip
13:24 jonrafkind: good thinking
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13:24 neilv: doesn't make much difference. only about 256 combinations to try :)
13:25 jonrafkind: even easier, if im on your lan ill just arp -n
13:25 neilv: yes
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13:38 greghendershott: neilv: how did you steal my IP range?!?! omfg you open software zealots are all mischievous evil system hackers!
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13:40 neilv: sorry, i only meant to impersonate someone else's ip address while i was browsing goat porn. forgot to turn it off
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14:12 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/rpTPTw
14:12 RacketCommitBot: racket/master e7c6222 Robby Findler: improve the 'method' syntax error so it gives a hint which argument is which
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14:18 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/jp3Qow
14:18 RacketCommitBot: racket/master 253ae42 Robby Findler: clarify what 'displayed' is programmatically (a call to get-admin)
14:18 RacketCommitBot: racket/master 97454b6 Robby Findler: guard use of exn-message...
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14:50 rindolf: Is there a Racket tutorial for people who already know Scheme (SICP/etc.) and many other programming languages?
14:51 dyoo: rindolf: does the racket guide documentation help?  its link is: http://docs.racket-lang.org/guide/index.html
14:52 dyoo: There are a few other guided tutorials described in: http://docs.racket-lang.org/getting-started/index.html that assume prior programming experience
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14:55 rindolf: dyoo: OK, seems interesting, but kinda long.
14:56 neilv: rindolf: i am working on a racket book for professional developers. it will be a while, though
14:56 rindolf: neilv: OK.
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14:56 rindolf: neilv: are the sources available in a version control repo?
14:57 neilv: no. just know that future generations will have it easier than you
14:57 dyoo: rindolf: do you have a suggestion on what kind of tutorial you're thinking of?
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14:58 rindolf: dyoo: something for advance programmers without too much hand-holding.
14:58 dyoo: any particular subject or focus?  Networking, algorithms, …?
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15:00 dyoo will be back soon; forgot to eat lunch (again…)
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15:01 rindolf: dyoo: well, mostly meta-lingual abstractions and not too many APIs.
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15:03 dyoo: rindolf: sketch out an idea, and one of us here might be interested to write something up.  Also, feel free to bring this up on the mailing list.  We want to make good documentation.  I have no idea what you mean yet by "meta-lingal", so I need further discussion.  :)  Ok, off for lunch
15:03 asumu: rindolf: if by meta-linguistic abstraction, you mean macros, Greg has a great guide: http://www.greghendershott.com/fear-of-macros/
15:04 rindolf: asumu: well, not only that.
15:04 rindolf: I mean features of the core language.
15:04 rindolf: Like closures, dictionaries, macros, subroutines, syntax, mini-languages, etc.
15:04 rindolf: OOP.
15:05 rindolf: Things that enhance your productivity.
15:06 asumu: That is what the Guide is intended to be.
15:06 asumu: To an extent.
15:06 rindolf: asumu: ah, OK.
15:06 rindolf: asumu: maybe I'll go over it.
15:06 asumu: It's definitely worth reading at least parts of it.
15:06 asumu: Probably too long to read front to back.
15:07 asumu: But you can just pick and choose topics that interest you (like the ones you listed).
15:08 rindolf: asumu: OK, thanks.
15:09 asumu: And as Danny said, feedback welcome.
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15:31 rindolf: asumu: thanks.
15:32 red_trumpet: Hi, I've got a problem with a racket-program. I modified the UFO-example (http://bit.ly/TunjPB) to be a world, so I could change the direction of the UFO. You can find my source-code on pastebin: http://pastebin.com/mkZ1eNTL . But when I try to run this, I get an error in line 21:
15:32 red_trumpet: world-posx: contract violation
15:32 red_trumpet: expected: world?
15:32 red_trumpet: given: (object:image% ...)
15:32 red_trumpet: But why is 'w
15:33 red_trumpet: ' an image? It should be a world...
15:33 dyoo: reading the code now...
15:33 dyoo: (by the way, perhaps using the check-with form in big-bang will help you find the problem)
15:34 dyoo: see: http://docs.racket-lang.org/teachpack/2htdpuniverse.html#(form._((lib._2htdp/universe..rkt)._check-with))
15:34 dyoo: may help catch whatever's causing the problem at an early time.  Ok, reading code...
15:35 dyoo: found it.
15:35 dyoo: your ticker function is not returning a world.
15:35 dyoo: Note: a test case on ticker would have caught this much earlier.
15:36 dyoo: something like (check-expect (ticker (world 50 50 0)) (world 50 50 0))
15:36 dyoo: which is exactly why you should be writing test cases. :)
15:36 red_trumpet: Ok, I haven't learned about this testing-function yet, but this might be awesome, I'll have a look on this.
15:38 dyoo: strongly recommend it.  If you haven't seen this yet: http://www.ccs.neu.edu/home/matthias/HtDP2e/
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15:44 RacketCommitBot: [racket] plt pushed 7 new commits to master: http://git.io/Q_jYdA
15:44 RacketCommitBot: racket/master 7b0a13b Ryan Culpepper: load root certificates from windows system certificate store...
15:44 RacketCommitBot: racket/master 438f906 Ryan Culpepper: reset statement after use
15:44 RacketCommitBot: racket/master 3d37eb4 Ryan Culpepper: untabify, #lang
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15:45 red_trumpet: Thank you for your help dyoo! It works now :)
15:46 red_trumpet is reading HtDP2 ;)
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16:03 red_trumpet: Ok, I have to go to bed, writing an exam tomorrow, good n8
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16:05 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/ZuIqFA
16:05 RacketCommitBot: racket/master 07b8507 Jens Axel Søgaard: Rename to bit-vector-popcount
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16:05 asumu: Anyone know the answer to this? https://twitter.com/ggelfond/status/273891597404483585
16:05 asumu doesn't use a Mac
16:05 dyoo: haven't written a guide, but it's a few changes
16:06 dyoo: Modify ~/.MacOS/environment.plist so it has the racket bin in path
16:08 soegaard: That is, if he install Racket simply by copying the folder into /Applications all he needs to do, is to add the folder to PATH.
16:08 dyoo: though according to: http://apple.stackexchange.com/questions/57385/where-are-system-environment-variables-set-in-mountain-lion, that's been changed
16:09 (quit) Jarod-: 
16:09 soegaard: Is it enough to add it to .bashrc ?
16:13 asumu: dyoo: can you tweet a reply?
16:13 dyoo: soegaard: according to http://apple.stackexchange.com/questions/51677/how-to-set-path-for-finder-launched-applications/51678, no.  Darn, this not exactly as straightforward as I initially thought
16:14 dyoo: asumu: no, unfortunately what I thought before doesn't work on mountain lion anymore
16:14 dyoo: what a mess...
16:14 asumu: Oh, hmm. That's unfortunate.
16:15 soegaard: If the original tweeter only needs to use the programs from the command line, then .bashrc ought to be enough. Right?
16:15 soegaard: The other mess is, well, unfortunate.
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16:16 dyoo: soegaard, yeah
16:17 dyoo: looking into it: reason Apple gives for the backwards-incompatible change is security: http://support.apple.com/kb/TS4267
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16:20 soegaard: Security. Who can argue against someone chanting "security".
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16:36 bremner: Apparently chanting "Developers" works too.
16:43 Cryovat throws a chair at bremner
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16:55 Agent-P: Hello
16:58 asumu: Hi.
17:03 Agent-P: Hey asumu
17:03 Agent-P: could you please help me to solve a problem in Racket ?
17:04 Agent-P: http://pastebin.com/pQj7wKSP
17:09 rindolf: Agent-P: why do you have a one-letter spacing between each letter?
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17:11 asumu: soegaard: JFYI, I think you missed renaming bit-vector-count in the docs
17:11 asumu: Agent-P: I'm not sure what the question is.
17:13 soegaard: asumu: Thanks for the tip.
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17:13 dyoo: A concrete example of why one would want a documentation system that actually uses the language bindings as in Scribble: in the documentation to a Java library (JSON), they misdocument the add() method as the put method.  There is no put method.  http://www.json.org/javadoc/org/json/JSONArray.html#put(boolean)
17:15 dyoo: … gah, never mind.  Completely backwards-incompatible change, yet again, between versions of _that_ library.
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17:15 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/HkwDsQ
17:15 RacketCommitBot: racket/master 6e60fb0 Jens Axel Søgaard: Fixed popcount name in docs
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17:16 soegaard: In this case I thought I had amended the change to a previous commit, but somehow it got lost.
17:16 Agent-P: http://pastebin.com/rhRR8and
17:16 Agent-P: this is a new paste
17:16 Agent-P: of the whole code
17:17 dyoo: Agent-P: … so, what's the probleM/
17:17 asumu: Agent-P: ok, that is more readable. I think you will have to explain 1) what you're trying to do 2) why it doesn't work
17:17 dyoo: problem?
17:17 Agent-P: How to get a new list of marchandise with respecting the tax-categories list ?
17:18 dyoo: I don't understand the question yet.
17:18 Agent-P: xD
17:18 Agent-P: ok
17:18 Agent-P: I take 'Book from the list of marchandise
17:18 Agent-P: then look for the tax for 'Book
17:18 Agent-P: and add 0.07 % to the price
17:18 Agent-P: and I should have a new list
17:19 Agent-P: containing :
17:19 Agent-P: "The Joy of Sets: Fundamentals of Contemporary Set Theory" 'Book 71.2453
17:19 dyoo: Can you express what you just said in terms of a test case?
17:19 Agent-P: (check-expect) u mean ?
17:19 Agent-P: ok
17:20 Agent-P: (check-expect (add-tax some-items tax-categories)
17:20 Agent-P: (list
17:20 dyoo: e.g. (check-expect  (add-tax-some-items (list (first-item))) <expected-result>)
17:20 Agent-P: exactely ..
17:20 Agent-P: ok I make a new pastebin
17:20 dyoo: If you don't want to write the expected results of all your items in some-list, make the test case smaller.  Start small, then get it bigger.
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17:21 Agent-P: http://pastebin.com/6NxU1Z0v dyoo
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17:22 asumu: BTW: if you make many pastebins, you may want to use gist.github.com instead. You can revise your gists and retain a history.
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17:23 Agent-P: thanks asumu for the information
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17:23 dyoo: Can you solve a slightly simpler problem?
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17:24 dyoo: That is, so you've got a function that eats a list of items and returns another list.
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17:24 dyoo: Simplification: can you design a function that eats a _single_ item, and returns a _single_ item with the tax included?
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17:25 Agent-P: no I can't because it should be done with the map function
17:25 Agent-P: and I don't really have any idea about using this function !
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17:27 dyoo: I'm not precisely asking you because that's what the final solution's going to look like: I'm asking because if you're really stuck, then you need to _build_ toward the solution.   Use it as scaffolding toward the solution you're looking for.
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17:28 dyoo: and if you had something that worked on single items, then you can repeatedly use it on every element in your list, so it's not an entirely useless helper function.  :)
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17:30 Agent-P: hmmm ok dyoo I'll just try to make a function to do it with the first element !
17:30 (part) Agent-P: "Verlassend"
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17:31 dyoo: Write a function to do it on _an_ element.  Don't hardcode it to lists of just one element.
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17:31 dyoo: (BIG HINT: the helper I'm trying to get you to write is exactly the thing you want to feed into map later on.)
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17:33 dyoo: Just as a high-level approach on these kinds of problems; if you're designing a function that works on lists, usually it's easier to start on first designing the one that works on single elements, and then reuse that as a helper to the list-eating version.
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18:21 Agent-P: well
18:21 Agent-P: dyoo : http://pastebin.com/y84gw08K
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18:21 dyoo: again, strong suggestion: do NOT hardcode this to work on lists of one element
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18:23 Agent-P: what do you mean ?
18:23 dyoo: that is, since you're trying to write find-tax-category: (listof item) (listof tax) -> (listof item)
18:23 dyoo: You might find it easier to do: find-tax-category1: item (listof tax) -> item
18:24 dyoo: that way, one of your arguments is simpler to deal with: it's just a single item rather than a whole list of them
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18:25 Agent-P: I couldn't translate this : after finding that the symbols match write the tax in a list and start with the second element of the listof item ...
18:25 dyoo: pretty much what you've got right now, except you won't need the (first listof_item) stuff
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18:26 Agent-P: I'll get an error if I remove the "first"
18:27 Agent-P: from (item-category(first listof_item))
18:27 dyoo: Well, yeah, since the types are changing.  It should, unless you also change how you're using the function.
18:28 dyoo: Right?  We used to have a function that works on a list of one element: if we rip out the first part, then we also have to make sure we call it with just one element.
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18:31 Agent-P: right
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18:31 Agent-P: well I'll take a look at my code again
18:35 Agent-P: I couldn't understand this part : if we rip out the first part, then we also have to make sure we call it with just one element.
18:40 Agent-P: dyoo : I couldn't understand this part : if we rip out the first part, then we also have to make sure we call it with just one element.
18:40 dyoo: Your uses of find-tax-category in your test cases used to say
18:40 dyoo: (find-tax-category (list item1) some-tax-list)
18:41 dyoo: If you then modify find-tax-category so it takes the element directly, then you need to change the use so it matches
18:41 dyoo: ==> (find-tax-category item1 some-tax-list)
18:42 dyoo: That is, since I'm advocating find-tax-category's contract to be:
18:42 dyoo: find-tax-category: item (listof tax) -> item
18:42 dyoo: then using it like this:
18:43 dyoo: (find-tax-category (list …) some-tax-list)
18:43 dyoo: can't possibly work anymore.  :)
18:44 dyoo: It's a matter of the shapes not fitting in anymore: circle doesn't fit into rectangular peg
18:44 dyoo: (or did I get that backwards?  rectangular peg doesn't go into circular hole)
18:46 Agent-P: hhhhhhhhh
18:46 Agent-P: ok you're right :)
18:47 Agent-P: I'll try to solve the problem :)
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19:01 Agent-P is so confused !
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19:30 ozzloy: how do i build the guide?
19:30 Agent-P: dyoo still here ?
19:30 ozzloy: short of building all of racket, that is
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19:36 Agent-P: http://pastebin.com/JTncT5Fy
19:36 Agent-P: this is the function again
19:36 Agent-P: I want to modify the function so that it takes the element directly ...
19:36 mye: Agent-P: there is no purpose statement, no examples
19:37 Agent-P: I have examples ofcourse :
19:37 Agent-P: wait a second
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19:39 Agent-P: http://pastebin.com/s0Ziz7Gy
19:39 Agent-P: this is the whole code
19:40 Agent-P: I'm trying to create a function that takes a list of item and a list of tax categories ... a list of item contains the name category and price
19:41 Agent-P: and a list of tax categories contains the category and the tax that should be added
19:42 Agent-P: so I want extract from both lists a new list of numbers which contains the Tax that should be added for every price of the list of item
19:42 Agent-P: for example :
19:42 Agent-P: in the list of item ... I take the first line .. the category which is 'Book
19:42 Agent-P: I compare the symbol till I find this symbol in the tax lists
19:43 Agent-P: and when I find the symbol I take the tax price which is : 0,07 and put it in a new list
19:43 Agent-P: then i go to the next item
19:44 Agent-P: and compare the category symbol of this item to the tax categories till I find the symbol
19:44 Agent-P: and go to the price and put it in the list where i putted the 0,07 but it should be in second line anyway
19:44 Agent-P: and ....
19:44 Agent-P: so the length(listof_item) = length(listof_numbers
19:44 Agent-P: )
19:47 mye: Agent-P: which teaching language is this?
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19:47 Agent-P: what do you mean ?
19:47 mye: beginning student ok that's what drracket said
19:47 mye: are u using drracket?
19:48 Agent-P: yes
19:48 mye: down in the lower left is a language selection thingy
19:48 Agent-P: yes
19:48 mye: that's what I meant :-)
19:49 Agent-P: I choosed in German : Zwischenstuffe mit Lambda
19:49 Agent-P: ...
19:49 Agent-P: Oh ok
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19:54 mye: right, I got some warm tea now. Agent-P, have you written test cases for the function you want to write?
19:55 Agent-P: Oh ok :D
19:55 Agent-P: No I didn't
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19:55 Agent-P: I've got to smoke a cigarette ... "in my head "ZoooMbie" "
19:56 mye: Agent-P: start with the test cases so you know that you know what you want
19:56 Agent-P: OK
19:56 Agent-P: Normally I should get :
19:57 Agent-P: this list
19:57 Agent-P: (list 0.07 0.07 0.07 0.19 0.19 0.19 0.07 0.19)
19:57 Agent-P: when I apply this function to my listof_item "some-items"
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19:58 Agent-P: I just finished typing my test
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21:14 danl-ndi: is there a good example of using process or system to spawn a process that can be killed with a ctrl-c at the repl?
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21:26 sw2wolf: What do you get when running (system "ping ...") ?
21:26 sw2wolf: in repl
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21:27 danl-ndi: hmm... maybe it already does what I want....
21:27 danl-ndi: seems to work
21:28 danl-ndi: ok maybe not
21:30 danl-ndi: user break, but the process keeps running
21:31 sw2wolf: in recket or drrackt ?
21:32 asumu: ozzloy: raco setup scribblings/guide
21:32 asumu: If you want it in PDF there's an option for that too, I think.
21:32 ozzloy: asumu, thanks!
21:32 asumu: Or you could just download a PDF from the pre-release site.
21:32 ozzloy: asumu, i ended up building the entire thing
21:32 danl-ndi: sw2wolf: ah, it seems to be only when running racket under emacs
21:33 asumu: ozzloy: http://pre.racket-lang.org/docs/pdf/
21:33 sw2wolf: danl-ndi: sorry i cannot test it now
21:33 ozzloy: asumu, not quite what i want.  there's a typo that i want to fix.  i've been proofreading the guide
21:33 asumu: ozzloy: aah, I see. Nice. :)
21:33 ozzloy: it's a project i've done off and on for about a year now
21:40 ozzloy: raco setup scribblings/guide seems to build the already installed guide
21:41 ozzloy: i guess i could go edit the source in there, but i have a separate working directory i want to build from
21:41 asumu: ozzloy: oh, do you have multiple Racket installs?
21:41 ozzloy: do i to `raco setup scribblings/guide` from the top of the git repo?
21:41 asumu: Or actually, you probably want `raco scribble ...`
21:41 asumu: If you're not editing the source directly in your Racket install
21:42 ozzloy: raco scribble racket/collects/scribblings/guide  then?
21:42 ozzloy: where the first "racket" is the root of the git clone?
21:42 ozzloy tries that
21:42 asumu: That should work if you're in the right place. You probably need the .scrbl at the end too.
21:43 asumu: Or guide/guide.scrbl (or whatever the main file is)
21:44 danl-ndi: appears to be a cygwin emacs bug
21:46 ozzloy: aww, it complains about "collects/scribblings/guide/compiled/guide_scrbl.zo::0: read (compiled): wrong version for compiled code"
21:46 ozzloy: compiled version: 5.3.1.9, expected version 5.3.1.2
21:47 ozzloy: so does that mean i _do_ have to compile the rest of racket to compile the scribble?
21:47 asumu: ozzloy: Oh hum. Try `raco make` on the same file.
21:47 ozzloy: on guide.scrbl?
21:47 asumu: Yeah.
21:47 asumu: Then run scribble again.
21:48 ozzloy: k
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21:49 ozzloy: you mean `raco make guide.scrbl && raco scribble guide.scrbl`, right?
21:49 asumu: http://www.cs.uni.edu/~wallingf/blog/archives/monthly/2012-11.html#e2012-11-28T18_34_12.htm <-- maybe dyoo should get in touch with him
21:49 asumu: ozzloy: yes, I think that should fix the version issue.
21:49 ozzloy: cool.  the first one finished.  waiting for the second
21:50 ozzloy: yay!
21:50 ozzloy: it worked
21:50 ozzloy: asumu, thanks!
21:50 asumu: No problem.
21:50 ozzloy: macros are blowing my mind
21:50 asumu: They are pretty great.
21:51 ozzloy: asumu, http://docs.racket-lang.org/guide/pattern-macros.html "Thus, this macro matches the form (swap form1 form2) for any form_1 and form_2."
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21:51 ozzloy: i corrected that to "(swap form_1 form_2) for any form_1 and form_2."
21:51 ozzloy: i know this is minor, but what's more ... racket-y
21:52 ozzloy: with or without the underscore
21:53 asumu: I would use an underscore there just because it's used elsewhere on that page.
21:53 ozzloy: yeah, that's what i went based on too
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23:59 mithos28: why are the ctypes constructors in ffi/unsafe instead of just in ffi?