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03:55 Blkt: good morning everyone
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08:45 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/QKy7Mw
08:45 RacketCommitBot: [racket/master] Fixing PR 12271 - Jay McCarthy
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10:27 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/WtEdGg
10:27 RacketCommitBot: [racket/master] Fixing breakage from push 23693 - Jay McCarthy
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11:49 _p4bl0: the racket .sh installer is really a pita. Each time I have to restart the install from scratch because I put a trailing / in the install target dir, then because I just hit enter at "ok to run racket-uninstall?", then because I enter "ok" instead of "yes" as an anwser to the same question... :-/
11:49 _p4bl0: Anyone knows where is the code that generates this script? Maybe I can improve those little things and submit a patch
11:51 samth: _p4bl0: i don't think it's in the public plt tree
11:51 samth: eli: ping
11:51 samth: eli: see above
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11:54 noelw: Patching the installer would be great
11:54 noelw: but if you're reinstalling many times perhaps you just want to grab the source and build it in-place
11:54 noelw: It's just the usual configure / make thing
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11:57 _p4bl0: samth: that's why I ask, I didn't find it in the source tree
11:58 samth: _p4bl0: there'a another, non-public tree, which mostly consists of a bunch of other crap, but probably has that as well
11:58 samth: that's why i asked eli -- he's the keeper of the build scripts
11:59 _p4bl0: noelw: it's on my Eee, which is kinda slow so I try to avoid compiling big stuff, but I don't have enough space on / to install the debian package, so I update from time to time (I just did a 5.0.2 -> 5.1.3 update).
11:59 _p4bl0: samth: okay, thanks :-)
11:59 noelw: Fair enough
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11:59 eli: samth: It's in the tree, http://git.racket-lang.org/plt/tree/HEAD:/collects/meta/build/unix-installer
11:59 rudybot: http://tinyurl.com/3ldsxh5
12:00 eli: noelw: It's still faster to run the installer.
12:00 samth: eli: oh, great
12:00 samth: _p4bl0: see the link eli gave
12:00 eli: _p4bl0: I see three complaints:
12:01 eli: (1) something about a trailing "/" being problematic -- can you please email me how you get it exactly?
12:01 eli: (2) something about "ok to run racket-uninstall" -- how is this a problem of the installer?
12:02 eli: (3) "ok" instead of "yes" -- if there's an issue I possibly can clarify the yes/no question, but adding synonyms to "yes" doesn't sound like a good idea.
12:02 _p4bl0: eli: for (2), the installer ask if it's okay to run the uninstaller if there's an already existing install. And the user have to guess that he should enter "yes" at this point (which is not obvious to me, but maybe I'm the only one)
12:03 _p4bl0: eli: yea that was my idea, to add " [yes/no]" at the end of the question
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12:05 eli: There are a whole bunch of yes/no questions.
12:05 _p4bl0: for (1), it's when the installer asks for the installation path, if it ends with a slash, it says "Error: internal error ($where ends in a slash)". Just adding a line with where="${where%/}" would solve this problem
12:07 _p4bl0: eli: the first one (about the unixness of the install) is clear about what I should enter, the second one feels like if I just hit the enter key it will continue the install because the default is "ok" as in the question, but it actually aborts
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12:08 eli: _p4bl0: Oh, so the ">>ok<< to run it?" is confusing.
12:08 eli: How about "should I run it? (default: no) " ?
12:09 _p4bl0: eli: muuuuuuuch better!
12:19 _p4bl0: eli: so you do the modifications directly? Or should I still send you a little patch?
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12:23 eli: _p4bl0: I'll commit it later.
12:24 eli: I also wanted to make it accept $VARs, which can lead to confusing errors if you use "$HOME" literally.
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12:26 _p4bl0: eli: okay, thanks :-)
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12:36 eli: _p4bl0: Actually, instead of blindly stripping a "/" suffix and substituting "$VAR"s, I'll make it ask for confirmation if after doing so the resulting path is different.
12:36 eli: Just in case someone *wanted* a "$" in their path.
12:37 _p4bl0: do you really want this kind of users? :-p
12:37 eli: I don't think that it's a useful in itself,
12:38 eli: but it's better to show people that the installation will go in "//blah" so they'll see that they had a typo and entered "$HOOME/blah" by mistake.
12:38 _p4bl0: ah right
12:39 _p4bl0: I have to go, the first session of our student logic working group is about to start (yay!)
12:39 _p4bl0: bye
12:39 Demosthenes: i think i've asked before, but is there a working ncurses binding somewhere
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12:40 Demosthenes: i need to write a basic data entry form, and i'd rather do it in racket. not sure about the gui interface, but curses would be fine.
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12:43 eli: Demosthenes: Using the gui would be easier.
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12:48 Demosthenes: anyone really done anything forms there?
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12:49 Demosthenes: and then i have to worry about windowing systems ;]
12:53 Demosthenes: i read on the ML some people make FFIs to ncurses "for a good time"?
12:54 Demosthenes: rather counterintuitive to me
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12:58 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/cGTK8g
12:58 RacketCommitBot: [racket/master] Typoes. - Vincent St-Amour
12:58 RacketCommitBot: [racket/master] Fix typo in Slideshow documentation - Rodolfo Carvalho
13:10 RacketCommitBot: [racket] plt pushed 3 new commits to master: http://git.io/oCI3RA
13:10 RacketCommitBot: [racket/master] pr 12268 fix merge to 5.2 - Kevin Tew
13:10 RacketCommitBot: [racket/master] Slideshow --half-screen - Kevin Tew
13:10 RacketCommitBot: [racket/master] Fix QNX merge to 5.2 - Kevin Tew
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13:14 stamourv: tewk_: I'm curious, why a QNX port?
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13:35 RacketCommitBot: [racket] plt pushed 3 new commits to master: http://git.io/8uyqUg
13:35 RacketCommitBot: [racket/master] Rename "$WHERE1" -> "$BASE". - Eli Barzilay
13:35 RacketCommitBot: [racket/master] Clearer question about running an existing uninstaller. - Eli Barzilay
13:35 RacketCommitBot: [racket/master] "half-screen" -> "right-half-screen". - Eli Barzilay
13:46 eli: Demosthenes: the racket gui is portable, you don't need to worry about windowing systems.
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15:11 Gertm: Is there an idiomatic Racket way to do tcp client connections? I've whipped something up but it makes my CPU go to 100%, so I'm probably doing something wrong.
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15:21 samth: Gertm: i assume you're using the `racket/tcp' module?
15:22 samth: i would say that `tcp-connect' is the idiomatic way to do it
15:29 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/Iqv-Fg
15:29 RacketCommitBot: [racket/master] Fixed error: attempt to divide by (void) when axis bounds' length is a multiple of 1000 - Neil Toronto
15:33 RacketCommitBot: [racket] plt pushed 27 new commits to release: http://git.io/mSsERw
15:33 RacketCommitBot: [racket/release] another attempt to fix the 64-bit Lion hidden-window problem - Matthew Flatt
15:33 RacketCommitBot: [racket/release] windows: add sqlite3.dll - Matthew Flatt
15:33 RacketCommitBot: [racket/release] adjust the way languages are chosen when opening a file. - Robby Findler
15:34 Gertm: samth: Yes, tcp-connect is what I did. I guess my question should have been: how can I read from the inputport without maxing out my cpu? I'm using (for ([line (in-bytes-lines in)]).. now, which doesn't seem to be the right way.
15:35 samth: Gertm: that will continue to read from the port until it is closed
15:35 jonrafkind: wheres stevie?
15:35 Gertm: samth: that's what I want actually
15:35 jonrafkind: is there a struct/contract analogue to define-struct/contract?
15:35 samth: jonrafkind: i don't think he's in today
15:35 samth: jonrafkind: no, i don't think so
15:35 jonrafkind: but it should probably exist right
15:36 samth: jonrafkind: no, i don't think it makes sense
15:36 jonrafkind: why not
15:36 samth: who is agreeing to the contract?
15:36 jonrafkind: uhh are you saying define-struct/contract should not exist?
15:37 samth: i'm not sure it makes sense, but if it exists, there should be a struct/contract version
15:37 samth: Gertm: `in-bytes-lines' reads until EOF
15:37 jonrafkind: well yea i mean define-struct/contract has existed for a while
15:38 Gertm: samth: It should just constantly read until the connection gets severed, so that's good. But there's not always something available to read. (I'm trying to write an IRC bot)
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15:38 Gertm: So basicly it does what I want, but the CPU goes to 100, and I'm not sure how to solve that.
15:39 samth: Gertm: it's just sitting in a loop, polling the tcp port
15:39 Gertm: Hmm strange. So that won't be the thing causing the high load/
15:39 Gertm: ?
15:40 samth: you probably need to use sync
15:40 samth: no, being in a tight loop is probably causing the load
15:40 samth: Gertm: i would take a look at the implementation of rudybot
15:40 Gertm: What do you mean by sync?
15:40 samth: rudybot: source
15:40 rudybot: samth: git clone git://github.com/offby1/rudybot.git
15:40 samth: rudybot: url
15:40 rudybot: samth: error: reference to an identifier before its definition: url in module: 'program
15:40 Gertm: ah cool! thanks
15:40 samth: rudybot: doc sync
15:40 rudybot: samth: http://docs.racket-lang.org/reference/sync.html#(def._((quote._~23~25kernel)._sync))
15:40 samth: Gertm: that sync
15:40 rapacity: rudybot: (require racket/place)
15:41 Gertm: I'll just clone the repo
15:41 rudybot: rapacity: your sandbox is ready
15:41 rudybot: rapacity: Done.
15:41 rapacity: rudybot: (define-values (a b) (place-channel))
15:41 rudybot: rapacity: Done.
15:41 rapacity: rudybot: (place-channel-put b (list 1 2 3 4))
15:41 rudybot: rapacity: Done.
15:43 rapacity: I want to try something but I'm afraid I might crash rudybot if there's a bug :p
15:43 samth: rapacity: rudybot is pretty well protected
15:44 rapacity: rudybot: (for ([i (in-range 999999999)]) (place-channel-put b (list 1 2 3 4)))
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15:44 rapacity: sorry!
15:44 samth: whoops
15:44 samth: offby1: ping
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17:23 offby1: samth: pong, but I'm at work
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17:28 samth: offby1: rudybot is down
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17:46 offby1: ugh
17:47 offby1: samth: tx.  I hope Mr/Ms rapacity is truly sorry for their sin
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17:48 RacketCommitBot: [racket] plt pushed 4 new commits to master: http://git.io/lAvi6Q
17:48 RacketCommitBot: [racket/master] fix argument-error report - Matthew Flatt
17:48 RacketCommitBot: [racket/master] doc clarifications - Matthew Flatt
17:48 RacketCommitBot: [racket/master] Revert "another attempt to fix the 64-bit Lion hidden-window problem" - Matthew Flatt
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20:47 eli: _p4bl0: Actually, I think that it makes sense for the default answer to that question to be "yes", which makes it similar to the behavior of the windows installer under similar conditions.
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21:03 pricos: hey all
21:04 pricos: are there any so-called real world applications with a GUI written in racket?
21:05 jonrafkind: well drracket.. but maybe thats not real world enough
21:05 pricos: well.. appart from that
21:05 pricos: I'm more curious about what people is doing with it than what it can do
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22:14 francisl: Hi, I have beginner question
22:14 francisl: how do I loop in a file for each line?
22:14 francisl: (with-open-file (stream "~/expenses.sexp")
22:14 francisl: (loop for line = (read stream nil)
22:14 francisl: while line do ... )
22:14 offby1: I don't think racket has a "loop" macro
22:15 francisl: here is what I want to do in lisp
22:15 francisl: I tried with call-with-input-file, but it seems that I have to know the size of the file
22:15 francisl: but does it have something similar?
22:15 francisl: at least for files
22:16 offby1: (for/and ([line (in-lines ip)]) (do-something-with line))
22:16 offby1: hold on, I can make that a little more complete
22:16 offby1: (call-with-input-file "whatever.txt" (lambda (ip) (for/and ([line (in-lines ip)]) (do-something-with line))))
22:16 offby1: that should do it
22:17 offby1: hmm, replace for/and with just plain "for".
22:17 offby1: There are a million variants of "for"; read up to see which is best
22:17 offby1: rudybot: doc for
22:17 rudybot: offby1: your sandbox is ready
22:17 rudybot: offby1: http://docs.racket-lang.org/reference/for.html#(form._((lib._racket%2Fprivate%2Fbase..rkt)._for))
22:17 francisl: ok, thanks, ill try it right away
22:17 offby1 plays in his sandbox
22:17 offby1: eww, a cat's been here
22:23 francisl: offby1: thanks, it was exactly what I was looking for
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22:50 francisl: Im trying to make my app to read sexp from a file, the loop return a string for each list; "(keyone 234 keytwo)"
22:50 francisl: how do I convert that back to : '(keyone 234 keytwo)
22:50 francisl: ?
22:51 francisl: in sbcl with-open-file does that without problem
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23:27 eli: francisl: replace (in-lines inp) with (in-producer read eof inp)
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23:53 francisl: eli: thank you, it does exactly what I wanted
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23:55 francisl: If I understand correctly, does it means that open port works as sequence?
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