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00:03 ozzloy: actually, all i really need in this instance is to check (equal? (find-system-path 'run-file) (find-executable-path "racket"))
00:03 ozzloy: find-executable-path == which
00:07 offby1 rubs chin
00:10 loz`: any example of semaphore usage?
00:11 ozzloy: nope, i'm still wrong
00:12 ozzloy: ok, i cave.  doing what eli suggested and offby1 does for rudybot
00:14 offby1 cackles evilly
00:15 IKEAnnesP: offby1, don't you ever feel when writing syntax-case that you have absolutely no idea what you are doing but it still works in the end
00:15 IKEAnnesP: Kind of like speaking English.
00:17 ozzloy: offby1, you win this round!
00:19 offby1: IKEAnnesP: I get the "no idea what I'm doing" bit, but not the "still works out" bit.  I almost never write macros, and when I do, I generally use "define-syntax", which is the kindergarten version.
00:19 offby1: Any syntax-rules in rudybot were probably written by eli, not me.
00:20 IKEAnnesP: syntax rules is fucking easy to understand
00:20 IKEAnnesP: I feel like syntax-case is so complicated that my concious mind delegated it to my subconscious like with all mind bogglingly complex stuff like maintaing balance and recognising facial expressions
00:21 IKEAnnesP: you know, the kind of stuff you just get right without truly knowing how you get it right, like recognising what odour smells like it's rotten food or what identifies as an object you cn comfortably sit on.
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00:52 loz`: argh, how to generate list in racket? for example from 1 to 100?
00:57 ohwow: rudybot: eval (require srfi/1)
00:57 rudybot: ohwow: your sandbox is ready
00:57 rudybot: ohwow: Done.
00:57 ohwow: rudybot: eval (iota 100 1)
00:57 rudybot: ohwow: ; Value: (1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100)
00:58 ohwow: there's probably a better way, though
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00:58 ohwow: without srfi/1
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01:18 asumu: rudybot: eval (build-list 100 identity)
01:18 rudybot: asumu: your sandbox is ready
01:18 rudybot: asumu: ; Value: (0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99)
01:19 asumu: loz`: ^ is a way to do it without srfi/1
01:20 asumu: rudybot: eval (for/list ([i 100]) i)
01:20 rudybot: asumu: ; Value: (0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99)
01:20 asumu: (and yet another way)
01:29 loz`: asumu: ok, thanks :)
01:37 loz`: is list thread-safe datastructure?
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02:04 jonrafkind: list is immutable, so yes
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06:50 epsil: how do I match a const in a pattern?
06:50 epsil: for example, say I want to match the form (foo bar)
06:50 epsil: I want to match foo followed by the specific symbol bar
06:50 epsil: but (syntax-rules () [(foo bar) ...]) will match foo followed by anything
06:50 epsil: so I'm unable to distinguish (foo bar) from (foo something-else)
06:53 noelw: (syntax-rules (bar) [(foo bar) …] ...)
06:56 epsil: ah, so that's what literal-id is for
06:56 epsil: I overlooked that whole argument :)
07:06 noelw: Easy enough to do!
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07:29 epsil: thanks for the help
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09:30 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/GKBXQQ
09:30 RacketCommitBot: [racket/master] When `make-evaluator' receives a path to a file, it allows reading it. - Eli Barzilay
09:30 RacketCommitBot: [racket/master] Remove links to the cookbook and the schematics project. - Eli Barzilay
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09:47 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/ebXrWA
09:47 RacketCommitBot: [racket/master] Bring back the search-the-web paragraph, with a pointer to SO instead. - Eli Barzilay
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10:13 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/0-8u4w
10:13 RacketCommitBot: [racket/master] add `datum-case', etc. as `syntax/datum' - Matthew Flatt
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11:12 _p4bl0: hello
11:12 _p4bl0: Is there a way to do what syntax-id-rules can do but with syntax-case? (binding an identifier to a macro)
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11:21 noelw: _p4bl0: I don't' understand the question
11:28 _p4bl0: noelw: I'd like to know (but I don't really need it) if it's possible to bind an alone identifier to a macro like syntax-id-rules can do, but using syntax-case
11:29 noelw: I think I understand and I think the answer is yes
11:29 noelw: Instead of a pattern (foo bar ...)
11:29 noelw: try just foo
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11:29 noelw: You can use this to turn a macro into a function, for example, so it can be used in a higher-order context
11:33 _p4bl0: noelw: it doesn't want to work, what am I doing wrong: (define-syntax (foo stx) (syntax-case stx () (foo #'(display "foo")))) ?
11:37 noelw: This works for me:
11:37 noelw: > (define-syntax (foo stx) (syntax-case stx () (foo (identifier? #'foo) #'(lambda () (display "foo!")))))
11:37 noelw: > foo
11:37 noelw: #<procedure>
11:39 _p4bl0: mmm it works now, it certainly was something else, strange... anyway, thanks!
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13:01 Emerick: Hi guys, I have what I think to be a simple racket bug(I tried to run the pyramidstack 1.0 by Mccarthy and I get this error: "send: target is not an object: #f for method: call-as-current"). It has something to do with big-bang, or with the opengl libs, but I followed everyadvice I found on google without success. Thx
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13:04 Emerick: can anybody help me pls?
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13:08 Emerick: Am I at least in the right place to ask these types of questions?
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13:12 bremner: Emerick: yes to the right place part
13:14 Emerick: thx, any ideea? :)
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13:24 bremner: sorry, nope.
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13:33 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/ERe_zA
13:33 RacketCommitBot: [racket/master] Removing stderr output from archive? - Jay McCarthy
13:33 RacketCommitBot: [racket/master] Apache not in docs - Jay McCarthy
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15:52 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/vhI11Q
15:52 RacketCommitBot: [racket/master] minor refactoring - Robby Findler
15:52 RacketCommitBot: [racket/master] when double clicking in a comment, fall back to word-based instead - Robby Findler
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16:41 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/Jp8lXA
16:41 RacketCommitBot: [racket/master] Remove "Affiliates" section which is less relevant now. - Eli Barzilay
16:48 ozzloy: sorta off-topic: what programming languages allow you to use unicode, like λ, in your code?
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16:49 stamourv: ozzloy: Racket. ;)
16:49 jonrafkind: fortress supports unicode
16:49 asumu: ozzloy: Haskell as well, off the top of my head.
16:49 stamourv: Some Schemes too, like Gauche.
16:50 ozzloy: ruby?
16:50 asumu: Funny, ocaml REPL errors with "Error: Illegal character"
16:51 asumu: ozzloy: IRB crashes when I try "Θ = 5"
16:51 asumu: (or just exits, not sure what it's doing)
16:52 ozzloy: oh, but you can do print "λ"
16:53 ozzloy: oh maybe it was added in 1.9.2
16:53 chandler: ozzloy: most CL implementations do. (maybe all of the popular ones at this point?)
16:55 jonrafkind: I think all languages should be able to parse a string containing a unicode character
16:55 jonrafkind: since its just an array of bytes
16:55 ozzloy: you'd think so
16:55 jonrafkind: i have ruby 1.8.7 and it works here
16:55 ozzloy: in irb?
16:56 jonrafkind: yea
16:56 ozzloy: like you can do λ = 3?
16:56 ozzloy: mine just exits
16:56 jonrafkind: wait i did print "λ"
16:56 jonrafkind: thats all i meant
16:56 ozzloy: oh, yeah, that's doable
16:56 jonrafkind: yea λ = 3 exits for me
16:56 ozzloy: but λ=3 not so much
16:56 jonrafkind: thats pretty funny actually
16:56 ozzloy: is λ a keyword in racket?
16:56 jonrafkind: i wonder if its just an exit(0) in the lexer, rofl
16:56 jonrafkind: its an identifier like anything else
16:57 ozzloy: ic
16:57 ozzloy: i've seen it used where "lambda" is in the racket source
16:57 jonrafkind: yea its the same thing as lambda
16:57 ozzloy: oh
16:57 ozzloy: lambda isn't a keyword?
16:57 jonrafkind: no there are no keywords in racket
16:57 ozzloy: it's just defined and used that way?
16:57 ozzloy: oh
16:57 jonrafkind: i mean theres a thing called "keywords" but those are different
16:57 ozzloy: heh, yeah not those
16:58 ozzloy: not function argument keywords
16:59 ozzloy: so racket gives you the power to change even the "keywords"
16:59 jonrafkind: yea racket syntax (and scheme) is pretty minimal
16:59 ozzloy: that's cool
16:59 ozzloy: it's just another identifier
16:59 ozzloy: and by convention it means one thing, but you _could_ if you so desired make it mean another
17:00 ozzloy: i really enjoy that.  the more i learn about little things in racket, the more i like it
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17:02 chandler: Hm, I'm getting "dyld: warning, could not relocate position independent executable" when running executables created by "raco exe" with 64-bit 5.2 on OS X 10.6
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17:03 ozzloy: i'm guessing arc does unicode code since it's a racket derivative
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17:14 slecuyer: is it possible to use #:servlet-path as a parameter of serve/servlet while using serve/dispatch?
17:16 slecuyer: the problem I'm trying to solve is that I want to use url dispatching all with a common base name.  for instance, I want to write handlers for "myurl.com/services/additem" and "myurl.com/services/checkout", but when I try to dispatch with a servlet-path, I get "myurl.com/additem" and "myurl.com/checkout" instead
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17:54 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/-01tNw
17:54 RacketCommitBot: [racket/master] Missing data character - Jay McCarthy
18:05 ozzloy: does racket have docstrings?  like (define (foo) "docstring" body) ? the lambda http://docs.racket-lang.org/reference/lambda.html reference makes no mention of it, so i'm guessing no
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18:05 freakazoid: ozzloy: there's scribble
18:05 freakazoid: http://docs.racket-lang.org/scribble/
18:08 ozzloy: freakazoid, ic ic
18:16 ozzloy: freakazoid, thanks
18:16 freakazoid: sure thing
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