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00:21 offby1: hey racketeers -- is this roughly the way to write your standard "with-resource" type function (like call-with-input-file)? http://ix.io/1Jd
00:22 offby1: seems to work OK, but it strikes me as odd that 1) I've never seen this pattern before; and 2) I had to write this myself; I'd have expected there to be some sorta macro or something that would help me write it
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03:03 eli: Demosthenes: ping
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03:45 PLT_Notify: racket: master Eli Barzilay * 2eb0a94 (4 files in 3 dirs): Removed a bogus provide and two bogus tests. ...
03:45 PLT_Notify: racket: master Eli Barzilay * a70ef57 (6 files in 6 dirs): Move `identity' from `unstable/function' into `racket/function'.
03:45 PLT_Notify: racket: master Eli Barzilay * 17b6ffa (5 files in 5 dirs): Move `thunk' from `unstable/function' into `racket/function'. ...
03:45 PLT_Notify: racket: master Eli Barzilay * 313e4e7 (1 files in 1 dirs): Better section heading
03:45 PLT_Notify: racket: master Eli Barzilay * a7aad55 (0 files in 0 dirs): Seems that this file is never used, possibly committed by mistake.
03:45 PLT_Notify: racket: master commits 0e0426a...a7aad55 - http://bit.ly/myJOLj
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11:07 rekahsoft: hi all..has any one ever triedmaking racket your shell?
11:08 askhader: rekahsoft: http://www.scsh.net/
11:10 rekahsoft: askhader: hey hey..long time..how've you been?
11:10 askhader: Pretty good, yourself?
11:11 rekahsoft: askhader: and thanks..heard of scsh before never really looked at it though before..
11:11 askhader: It's the most mature implementation of a scheme shell that I know of.
11:11 askhader: Trying to do some systems programming in racket?
11:13 rekahsoft: askhader: meh been playing with racket and common lisp..and just been doing random things to spruce of my systems lol
11:13 askhader: Right on
11:13 rekahsoft: what have you been up to?
11:13 askhader: I'll PM it ti you, to speak of it would be blasphemy in this channel
11:14 noel_: oh comeon, blaspheme away!
11:15 askhader: Been toying with golang of late =P
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11:15 askhader: They have pretty closures and functions are also of the first order.
11:15 askhader: Lexical scope...
11:17 rekahsoft: cool cool :) i also have been learning haskell more and more as i can...such a expressive sexy lang :P
11:18 noel_: I don't find Go very interesting. Rust, when implemented, will be much more my kind of thing.
11:18 noel_: Haskell is definitely worth learning.
11:19 askhader: Agreed.
11:19 askhader: I don't know if it's worth taking the time to learn for most practical applications though.
11:19 askhader: Also, rust?
11:20 noel_: Rust is a systems programming language Mozilla are developing
11:20 noel_: It fills the gap between the JVM and C
11:20 noel_: (at least in my mind)
11:21 noel_: It's very modern, but let's you talk about things like stack vs heap allocation
11:22 noel_: https://github.com/graydon/rust/wiki
11:22 noel_: Go has the advantage of actually being implemented
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11:24 askhader: Uh..
11:24 askhader: Yeah haha
11:24 askhader: Also, I don't see anything particularly appealing about the proposed features of Rust.
11:25 noel_: Try the FAQ which compares to Go
11:26 noel_: If Go is interesting I thought Rust would be. They're in the same space (systems programming)
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11:27 askhader: Hmm.
11:27 askhader: I suppose in that respect, yeah, it's interesting.
11:28 askhader: But I don't see the comparison as useful in any way, nor do I see any of the ``unsatisfactory'' points about GO as detrimental to the language.
11:30 noel_: oh well. i'm not on the Rust marketing board so i'll leave it at that.
11:31 noel_: (but most of the unsatisfactory points relate to concurrency.)
11:35 askhader: Hehe
11:35 askhader: Fair enough
11:42 eli: Demosthenes: You wanted subgroups from `regexp-match*' too, right?  -- I'll add that soon.
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12:04 Demosthenes: eli: subgroups?
12:08 eli: Demosthenes: Something like (regexp-match* #rx"(a*)(b*)" ...) that returns not only the matches, but also the parenthesized sub-matches.  Wasn't it you who asked about it recently?
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12:48 Demosthenes: eli: i thought it already did that
12:49 Demosthenes: i've talked about named-capture #px"(?<name>captureregexp)" -> #(hash-eq '( name . "captured" ))
12:49 Demosthenes: ala perl 5.10
12:49 Demosthenes: and regexp-debugging
12:49 Demosthenes: where debugging is rather required for doing regexps in multiline mode
12:51 Demosthenes: oooh, and a cli debugger for racket would rock ;]
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13:01 eli: Demosthenes: No, I'm not talking about any of these things.
13:02 Demosthenes: eli: then i don't get the submatching ;]
13:03 eli: rudybot: (regexp-match* #rx"(a*)(b*)" "aabbaaabbbab")
13:03 rudybot: eli: your sandbox is ready
13:03 rudybot: eli: ; Value: ("aabb" "aaabbb" "ab" "")
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13:03 eli: Demosthenes: Making that able to return (("aa" "bb") ("aaa" "bbb") ("a" "b") ("" ""))
13:04 eli: So it was probably someone else that asked me about it.
13:07 Demosthenes: yep
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13:08 PLT_Notify: racket: master Eli Barzilay * fc1b974 (1 files in 1 dirs): Fix "zo-parse.rkt" wrt the inclusion of `identity' in mzlib/etc, and ...
13:08 PLT_Notify: racket: master Eli Barzilay * 40a88b6 (3 files in 2 dirs): Fix TR docs wrt to `racket/function' change, close evaluators, fix ...
13:08 PLT_Notify: racket: master commits a7aad55...40a88b6 - http://bit.ly/jbg5yW
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13:26 Demosthenes: i was looking for more, simple lexer/parser examples
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13:39 mithos28: Can someone explain why the different requires in this program print different values? http://pastebin.com/tKAnA7sY
13:40 mithos28: My understanding is that they should all print #t
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13:46 jonrafkind: i dunno, maybe something to do with racket/load ?
13:47 mithos28: I'll try to make a test case without racket/load, but I don't think that is it. I saw this behavior without it
13:49 mithos28: I see it without racket/load
13:49 mithos28: I'm thinking it is a bug
13:50 jonrafkind: ok i see it just using modules
13:50 jonrafkind: hm
13:55 mithos28: Here is a more informative version. http://pastebin.com/jdnghvCW
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13:59 mithos28: Something seems up with what phase-level the identifiers are equal at
14:00 jonrafkind: send the example to the list, its almost surely a bug
14:00 mithos28: do you mean list or bug report?
14:01 jonrafkind: dont spend too many cycles figuring it out, matthew will solve it sooner than you :p
14:01 jonrafkind: either is fine I guess
14:01 mithos28: ok, thanks for the help
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14:22 jonrafkind: ugh carl..
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14:33 jonrafkind: mithos28, if you add the phase level to free-identifier=? for the phase you want to check at then it works
14:36 jonrafkind: i dont see why syntax-local-phase-level is 0 all the time though
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15:56 PLT_Notify: racket: master Kevin Tew * 524b5ca (1 files in 1 dirs): Channels compared to dd - http://bit.ly/jDH85G
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17:14 offby1: hmm ... any generic way to compare two dicts for equality?  I suspect I'll have to convert them to hashes, and then compare those.
17:15 jonrafkind: check their popped collars?
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17:19 ianj_: Is anyone active? I have a question about subprocess.
17:19 jonrafkind: go for it
17:21 ianj_: I'm calling (subprocess #f #f #f "myprogram"). I use fprintf on the third value it gives me to give a command to my program. It prints something in response. When I use read-line on the second value of subprocess, it just blocks forever. Why?
17:22 offby1: .oO("popped collars"?)
17:22 jonrafkind: did that fly over your head offby1 ?
17:22 offby1: jonrafkind: I confess sadly
17:22 offby1: and I've had my coffee today, too
17:23 jonrafkind: http://www.google.com/imgres?imgurl=http://www.hahastop.com/pictures/7_Popped_Collars.jpg&imgrefurl=http://www.hahastop.com/pictures/7_Popped_Collars.htm&h=750&w=600&sz=53&tbnid=TfMpxdQzZoLXhM:&tbnh=90&tbnw=72&prev=/search%3Fq%3Dpopped%2Bcollars%26tbm%3Disch%26tbo%3Du&zoom=1&q=popped+collars&usg=__QGEz2A_ClWppsax1Uk9xLx-XPSY=&sa=X&ei=t5buTYSgOsrzqwGNmrS7CA&ved=0CB4Q9QEwAQ&dur=83
17:23 rudybot: http://tinyurl.com/6z6vbbr
17:23 jonrafkind: ianj_, i dunno, maybe try read-string ?
17:24 ianj_: Doesn't work.
17:24 ianj_: byte-ready? is false, no matter the timeout length I give for sync/timeout on the input port.
17:26 tewk: ianj_: first return value is the processes stdout, the second is the processes stdin, the third is the process stderr
17:27 tewk: shouldn't you fprintf to the second value and read-line on the first?
17:28 ianj_: I was using 1-based indexing.
17:28 ianj_: the first value is the subprocess struct.
17:28 tewk: oh duh
17:28 ianj_: I'm not getting contract violations, so that much is correct.
17:30 eli: ianj_: Do you start threads to do your IO?
17:31 ianj_: no.
17:31 tewk: Are you explicitly calling flush-output after the fprintf?
17:31 ianj_: No
17:32 eli: You should.  For both.
17:32 tewk: try (flush-output third-value)
17:33 ianj_: That solved my problem. Thanks.
17:33 tewk: I made the same mistake recently, I always forget to flush.
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17:51 offby1: eww
17:53 jonrafkind: :p
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18:08 ianj_: how might you empty an input port efficiently? I have some excess output I need to cut. I don't fully understand filter-read-input-port
18:09 ianj_: None of the collects use it.
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18:11 ianj_: Gross, it calls the read filter per-byte.
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18:20 eli: ianj_: Use `copy-port' with `open-output-nowhere'?
18:20 eli: (I don't see how filtering is relevant here.)
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18:43 jonrafkind: eli, ping
19:13 offby1: if you're gonna copy to nowhere, why not just close the port?
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22:47 Demosthenes: hrm, planet has no curses interfaces :P
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22:59 offby1: probably easiest to talk to libncurses via the FFI
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