00:47 (quit) zenlunatic: Quit: Lost terminal
01:45 (quit) jay-mccarthy: Quit: jay-mccarthy
01:59 (quit) mheld: Quit: mheld
02:22 (nick) fmu` -> fmu
03:15 (join) sunnyps
03:18 (quit) parcs: Ping timeout: 272 seconds
03:19 (join) parcs
03:21 (quit) jonrafkind: Ping timeout: 255 seconds
03:42 (join) evhan
03:46 (quit) evhan: Quit: evhan
05:36 (join) aLeSD
05:47 aLeSD: hi all
05:57 aLeSD: I have a problem
05:58 aLeSD: I am a problem
06:00 aLeSD: the question is : could I program in objects in racket ?
06:21 Lajla: aLeSD, you mean object oriented
06:21 Lajla: ?
06:21 aLeSD: yes
06:21 aLeSD: hi Lajla
06:22 Lajla: aLeSD, you can.
06:23 Lajla: As a matterof fact
06:23 Lajla: And if the searc function at the sie were a bit sooner.
06:23 Lajla: faster
06:23 Lajla: I'd give you the docs.
06:23 aLeSD: lol
06:23 aLeSD: thnaks
06:23 Lajla: http://docs.racket-lang.org/guide/classes.html?q=object%20oriented
06:23 Lajla: And there we go
06:26 aLeSD: Lajla,  my idea is to create lots of object that I will use in my animations
06:26 aLeSD: what do u think ?
06:26 aLeSD: Is it a good idea
06:26 aLeSD: ?
06:40 (quit) aLeSD: Ping timeout: 255 seconds
06:54 (join) aLeSD
06:58 Lajla: aLeSD, not sure, I don't really use fluxus.
06:58 Lajla: And I have never been a fan of this type of OO.
06:58 Lajla: Where you go have to declare all kinds of stuff.
06:58 Lajla: I'll rather have the pure actor model.
06:58 aLeSD: np ... it is on racket
06:58 Lajla: And I think 'responses' are kind of silly.
06:59 Lajla: aLeSD, fluxus?
06:59 aLeSD: I have to do a recursion inside a function ?
06:59 aLeSD: and won't define another function outside
07:00 Lajla: aLeSD, yeah.
07:00 Lajla: Even loops in scheme are just syntactic sugar over recursion.
07:00 aLeSD: how ?
07:00 Lajla: Do you have your code?
07:00 Lajla: (Also, don't worry about it being inefficient, Scheme has tail call optimization which means that tail recursion will just get compiled to a loop)
07:00 aLeSD: give me the line I will code it and then show u
07:00 Lajla: What line?
07:00 Lajla: What do you mean?
07:01 aLeSD: I mean the command I have to use
07:01 aLeSD: I would like to use lambda
07:01 aLeSD: but then I have noname function to call for recusrsion
07:01 Lajla: For recursion?
07:01 aLeSD: yes
07:01 Lajla: Ahhh
07:01 Lajla: Well, you can use the named let.
07:02 aLeSD: mmm
07:02 Lajla: Which is actually used quite often, let me draw you an example.
07:02 aLeSD: understood
07:02 Lajla: You know how let works right?
07:02 aLeSD: I am using it for variables
07:02 aLeSD: let is the same o a block in c/c++
07:02 aLeSD: {}
07:08 Lajla: aLeSD, http://codepad.org/oxEp9I3D
07:08 Lajla: Yeah, exactly.
07:08 Lajla: Except that they can go arbitrarily deep, and they evaluate to a value.
07:09 Lajla: Also, quite often, there is only going to be one expression inside the body.
07:09 Lajla: you can do more than one, but in rue schem style only one is used, and you generally only need one.
07:10 aLeSD: mm
07:11 aLeSD: if I want to create a temporary var I code
07:11 aLeSD: (let (a 5) ... ) ?
07:11 Lajla: No, (let ((a 5)) ...)
07:12 Lajla: Let is actually quite like a function.
07:12 Lajla: Where a is an argument
07:12 Lajla: And 5 is just directly passed to it.
07:12 Lajla: In fact, (let ((a 5)) ...) is completely identical to ((lambda (a) ...) 5)
07:12 aLeSD: mmm
07:12 Lajla: Which is what a lot of compilers rewrite it to before compilation
07:13 aLeSD: it gives me bad syntax
07:13 Lajla: (let ((a 5)) (+ a 4)) ?
07:13 aLeSD: maybe I have to code a body
07:14 aLeSD: ok
07:15 aLeSD: Lajla, I don't understand the double brackets
07:16 Lajla: aLeSD, well, it's when you want to have more than one binding.
07:16 Lajla: (let ((a 5) (b 3)) ...)
07:16 Lajla: That's why they are double.
07:16 aLeSD: I want one binding and a function
07:17 aLeSD: (let ((a 5)) recurs ((n )) ... )
07:17 Lajla: Ahhh
07:17 Lajla: No, then you have to do (let blabla ((a 5)) (blabla (- a 1)))
07:17 Lajla: For instance
07:17 Lajla: Which will recur forever without stopping.
07:18 aLeSD: I want a global for the function
07:18 Lajla: You want to define a global name?
07:18 Lajla: Then you just use (define (blabla x) ...)
07:18 Lajla: At the top level.
07:18 aLeSD: I hate my english
07:18 Lajla: I love my English.
07:19 Lajla: aLeSD, what is your native language?
07:19 aLeSD: italian
07:19 aLeSD: spanish
07:19 Lajla: Ah, two languages I don't speak I guess.
07:20 aLeSD: I will improve my english
07:20 Lajla: Good boy.
07:20 Lajla: I will improve your grasp of functional programmin in the meanwhile.
07:32 aLeSD: Lajla, I am going crazy
07:36 Lajla: aLeSD, I am already wofully past that line.
07:37 (quit) aLeSD: Read error: Connection reset by peer
07:39 (join) jay-mccarthy
07:50 (join) aLeSD
07:59 (quit) aLeSD: Ping timeout: 240 seconds
08:32 (join) MayDaniel
08:32 (join) aLeSD
08:36 (join) martinhex
08:36 (quit) jay-mccarthy: Quit: jay-mccarthy
08:49 (nick) Lajla -> We
08:49 (nick) We -> Lajla
09:15 (join) mceier
09:27 (quit) aLeSD: Quit: Leaving
09:41 (quit) MayDaniel: Read error: Connection reset by peer
09:50 (join) jay-mccarthy
09:53 (quit) jay-mccarthy: Client Quit
10:03 (quit) sunnyps: Read error: Connection reset by peer
10:27 (join) jay-mccarthy
10:27 (quit) jay-mccarthy: Client Quit
11:25 (join) jay-mccarthy
11:53 (join) anRch
11:54 (join) MayDaniel
12:13 (quit) jay-mccarthy: Quit: jay-mccarthy
12:18 (join) jonrafkind
12:22 (join) mheld
12:25 (quit) anRch: Quit: anRch
12:28 (join) mwolfe
12:32 (join) anRch
12:39 (join) offby1`
12:40 (quit) offby1: Ping timeout: 260 seconds
12:58 (quit) anRch: Quit: anRch
15:15 (quit) jonrafkind: Read error: Connection reset by peer
15:18 (join) jonrafkind
16:37 (join) j`ey
16:37 j`ey: can anyone shed light on what mcons is?
16:39 jonrafkind: it makes a mutable cons
16:39 jonrafkind: cons just makes an immutable cons set
16:39 j`ey: oh okay, I got rid of it now anyway
16:39 j`ey: made sure it was in r5rs mode
16:39 jonrafkind: rudybot: eval (let ([x (mcons 1 2)]) (set-mcar! x 12) (mcar x))
16:39 rudybot: jonrafkind: your sandbox is ready
16:39 rudybot: jonrafkind: ; Value: 12
17:02 (quit) tv|z: Ping timeout: 240 seconds
17:03 (part) j`ey
17:04 (join) tv|z
17:06 Lajla: So like, that conses are immutable by default, is this some performance choice?
17:06 Lajla: I also noticed yesterday that #lang racket doesn't like one-armed ifs.
17:07 jonrafkind: hm there is a blog post about the immutable vs mutable thing
17:10 Lajla: I will rely on you to find it since this is too vague to search for, and you are my little oracle.
17:11 jonrafkind: yea searching..
17:12 jonrafkind: http://blog.racket-lang.org/2007/11/getting-rid-of-set-car-and-set-cdr.html
17:12 jonrafkind: finally
17:12 rudybot: http://tinyurl.com/2bws4fr
17:12 jonrafkind: it was older than i thought
17:13 Lajla: jonrafkind, most obedient.
17:14 jonrafkind sits in the corner
17:14 Lajla: You will receive less whipping tonight for this servitude.
17:15 Lajla: How does the above guarantee left to right order?
17:18 jonrafkind: immutable cons?
17:20 Lajla: Ah
17:20 Lajla: So cons guarantees it first evaluates it left operant
17:20 Lajla: and then its right?
17:21 jonrafkind: well thats racket's evaluation order
17:21 jonrafkind: all evaluation is left to right afaik
17:21 jonrafkind: i mean a macro can screw with that, but i dont think many do
17:21 Lajla: Oh okay.
17:21 Lajla: I gues.
17:22 Lajla: Never bothered to test that.
17:22 Lajla: Or look it up.
17:22 jonrafkind: you aren't supposed to rely on it supposdly
17:22 Lajla: So it's not really an efficiency decision?
17:22 Lajla: Yeah
17:22 Lajla: So that is why I do not care.
17:22 Lajla: Because I am a good boy.
17:22 Lajla: And seperate my functions which cause side effects from those that return a value.
17:23 jonrafkind: yesm
17:23 Lajla: I take that back, I don't when I handle ports.
18:13 (join) j`ey
18:55 (quit) sid3k: Remote host closed the connection
18:55 (join) sid3k
19:06 (quit) MayDaniel: Read error: Connection reset by peer
19:46 (part) j`ey
19:53 (join) dnolen
20:12 (quit) offby1`: Read error: Connection reset by peer
20:21 (quit) abbe: Quit: abbe
20:51 (quit) mwolfe: Remote host closed the connection
21:15 (quit) mceier: Quit: leaving
21:20 (quit) parcs: Ping timeout: 240 seconds
21:22 (join) parcs
22:05 (join) jay-mccarthy
23:16 (quit) dnolen: Quit: dnolen