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00:18 dgs: does racket have a string-contains function? I thought it did, but I can't find any reference to it any where in the help desk
00:19 jonrafkind: theres regex functions, which is a close seond
00:19 jonrafkind: second
00:19 dgs: i need a function like that (i think) for exercise 139 in HTDP 2ed
00:19 dgs: i was going to try and write my own, but I think that may be beyond the scope of what they were intending for the lession
00:19 dgs: lesson even
00:20 dgs: hmm
00:20 dgs: that sounds more like it
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00:22 jonrafkind: you could do this exercise with string->list and check characters
00:23 jonrafkind: all you really need to do is get a character at a position
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00:48 dgs: yeah
00:48 dgs: that's what I thinking
00:48 dgs: but you'd need to do a full check thru all the characters in the search string
00:49 dgs: which didn't seem too hard
00:49 dgs: just seemed a lot more effort than the rest of the questions around it
00:49 dgs: so thought I may be overlooking something obvious =)
00:49 jonrafkind: well certainly there are optimal ways of searching through strings for substrings
00:49 jonrafkind: grep does a lot of fancy things
00:50 jonrafkind: but for this exercise its fine
01:01 dgs: cool.
01:01 dgs: ok thanks for your help =)
02:07 eli: jonrafkind: "treat #\return like #\newline" sounds dangerous.
02:09 jonrafkind: well.. it was mostly just a hack because matthew wanted to run honu on windows
02:09 jonrafkind: basically anywhere I had "\n" i added "\r"
02:09 jonrafkind: whats the danger you are thinking of?
02:09 eli: Places where newlines matter.
02:09 jonrafkind: and it ended up being in two places I think
02:09 jonrafkind: it goes \r\n right?
02:10 eli: Yes.
02:10 jonrafkind: the only time newlines matter right now is in line comments, which should always end with \n
02:10 eli: IOW, the regexp should be #rx"(\r\n|\n)"
02:10 jonrafkind: any trailing \r's just get treated as whitespace
02:10 eli: Or better: #rx"\r?\n"
02:10 jonrafkind: the line comment chews up all characters until it hits \n
02:11 eli: So that's fine by accident.
02:11 jonrafkind: heh yea, i considered that case
02:11 jonrafkind: its not (or "\r" "\n"), maybe thats the danger you meant
02:11 eli: I'm assuming that you didn't mean to make it compatible with Mac Classic text files...
02:11 jonrafkind: err whats that :p
02:12 eli: Yes, it's not #rx"[\r\n]"
02:12 eli: Here's another example:
02:12 eli: if you want to count the number of lines in a string,
02:12 eli: then "foo\r\nbar" should have two lines.
02:12 eli: Treating \r like \n wouldn't be right.
02:12 jonrafkind: right
02:13 eli: In the Mac Classic world, \r are newlines.
02:13 jonrafkind: hilarious
02:13 eli: Makes things a total mess, so it's good to ignore.
02:13 jonrafkind: actually i have a completely separate program where I think I did \r == \n, so ill fix that
02:14 jonrafkind: (completely unrelated to racket)
02:14 eli: Yeah, that's why I said that it sounds dangerous.
02:14 eli: Its the kind of assumption that works for a good while, then bites you in a very hard to find way, and when you fix it it can be a maintenance disaster.
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07:56 RacketCommitBot: [racket] plt pushed 4 new commits to master: http://git.io/ZlECjg
07:56 RacketCommitBot: [racket/master] db: added #:use-place arg for ffi-based connections - Ryan Culpepper
07:56 RacketCommitBot: [racket/master] db: fixed kill-safe-connection, improved tests - Ryan Culpepper
07:56 RacketCommitBot: [racket/master] db: improved locking - Ryan Culpepper
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09:20 neilv: looks like mcfly will work. http://i.imgur.com/lloG5.png
09:22 neilv: next step is to add support for "doc Procedure". basically, you *can* put the entire contract in the "doc" form, but if you just put an identifier there, it will use the contract from the code, adapt typed racket info, or try to find the lamba for the procedure and kludge up any/c contract
09:22 ohwow: what does McFly do?
09:22 neilv: mcfly is a convenient way to embed the entire documentation for your planet package in with the code, sorta like javadoc
09:23 noelw: heh. looks fun.
09:24 neilv: for the people who like interspersing docs with code, it's a win. other people will just edit their .scrbl file directly
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09:30 neilv: you'll also be able to generate your info.rkt from this info for most simple packages. including the release notes info from the "doc History" form
09:40 noelw: what window manager do you use, neilv?
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09:42 neilv: fvwm with a bunch of old modifications of mine
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10:13 ohwow: why xchat?
10:15 neilv: i don't irc much, and it works as a tiny window
10:17 neilv: it beats running http://www.neilvandyke.org/edgeirc/
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10:22 ohwow: :)
10:22 ohwow: emacs has an irc client too
10:23 neilv: i've used it and hacked it
10:24 ohwow: cool
10:24 ohwow: which one? erc/
10:24 neilv: yes
10:25 neilv: but i guess these things aren't really on-topic for racket
10:29 ohwow: oh, sorry
10:30 neilv: i am very good at taking things off-topic
10:36 neilv: bbl
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10:55 (nick) samth_away -> samth
10:57 samth: ohwow, neilv: off-topic discussion is fine
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11:39 offby1: I'm using ERC Version 5.3 with GNU Emacs 23.1.1 (i386-redhat-linux-gnu, multi-tty) of 2011-01-16.
11:39 offby1: just sayin'
11:40 samth: offby1: the real question is, what IRC client does rudybot endorse?
11:43 offby1: let's ask
11:43 offby1: rudybot: boxers or briefs?
11:43 rudybot: offby1: so would that look like (setq w32-apps-modifier 'hyper) or (setq w32-apps-modifier "hyper") ?
11:43 offby1: samth: there you go
11:47 samth: offby1: where did it get that string?
11:48 offby1: samth: it logs everything.  Then, when I say something to it that isn't one of its few built-in commands (like "source", e.g.), it splits what I say up into words; searches its logs for those words; chooses the word which appears the fewest times in the log; then randomly picks a string that contains that rare word.
11:49 offby1: so in the above, apparently it chose the word "or".
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11:53 RacketCommitBot: [racket] plt pushed 4 new commits to master: http://git.io/fjPM7g
11:53 RacketCommitBot: [racket/master] fix "GRacketCGC.app" install - Matthew Flatt
11:53 RacketCommitBot: [racket/master] use closesocket() etc. for scheme_close_socket_fd() - Matthew Flatt
11:53 RacketCommitBot: [racket/master] fix printed form of place channels - Matthew Flatt
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12:30 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/isTenQ
12:30 RacketCommitBot: [racket/master] Fixes handling of pattern variables that look like metafunctions - Casey Klein
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12:40 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/bvphhw
12:40 RacketCommitBot: [racket/master] Use reference implementation for srfi/11. - Sam Tobin-Hochstadt
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13:28 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/kCr1FQ
13:28 RacketCommitBot: [racket/master] Move interactive helpers away from prims.rkt. - Vincent St-Amour
13:28 RacketCommitBot: [racket/master] Remove useless requires. - Vincent St-Amour
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13:41 neilv: i can't imagine life without quasisyntax/loc
13:42 stamourv: Agreed. It's a must for writing friendly macros.
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14:04 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/fzT5_w
14:04 RacketCommitBot: [racket/master] adjust timeout for planet tests to 2x the number of seconds it takes to run - Robby Findler
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14:30 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/L3dDKw
14:30 RacketCommitBot: [racket/master] Fix the Compiled-Non-Module-Expression type. - Vincent St-Amour
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14:34 eli: rudybot: Do you like M113 ?
14:34 rudybot: eli: right, or I could use C-u M-| on the region
14:35 eli: rudybot: Do you like M113 ?
14:35 rudybot: eli: (module m scheme
14:35 eli: rudybot: Do you like M113 ?
14:35 rudybot: eli: M-: load-path?
14:35 eli: offby1: So it doesn't leak private conversations?
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15:34 bfulgham: eli: I've been away for a long Lisp winter. So I'm just now getting back in touch.
15:34 bfulgham: eli: Is the new 'places' stuff meant to be an Erlang-ish concurrency system?
15:35 eli: bfulgham: Welcome back then!
15:36 eli: bfulgham: No -- places are the heavyweight share-nothing solution.  There's also `future' which is a more lightweight share-nothing thing,
15:36 eli: but to do a lot of threads you'd probably want just plain `thread', which is the same green thread thing that you remember from before the winter.
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16:34 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/O-UACQ
16:34 RacketCommitBot: [racket/master] Fix flag name in raco exe docs. - Vincent St-Amour
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16:54 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/0BPxMQ
16:54 RacketCommitBot: [racket/master] Use the right Scribble form for flags. - Vincent St-Amour
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16:54 jonrafkind: stamourv, im starting to think a single push per day should be the norm, not that im annoyed with your recent commits or anything
16:55 jonrafkind: but since it works out nicely with git I think its a good flow
16:56 stamourv: Well, in this case, at the time of each of these pushes, I didn't even know I would be doing the next one.
16:58 jonrafkind: well true, but you could wait till shortly before you leave to push
16:58 jonrafkind: or before bed or something
17:02 stamourv: I could, but I don't see the point. In the case of adding features, sure, but in the case of fixes, the sooner the better, IMO.
17:03 jonrafkind: the only real downside is it slows drdr down
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17:09 stamourv: jonrafkind: We gotta keep Blake's office nice and warm ;).
17:12 jonrafkind: man its hot here..
17:12 jonrafkind: although possibly not as hot as boston :p
17:19 stamourv: Eh, it's 73 right now.
17:19 jonrafkind: oh so pretty reasonable
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17:53 samth: eli: `future' is not shared-nothing
17:53 samth: and places are very very erlang-ish, but heavier-weight
17:56 samth: bfulgham: places are like erlang in their concurrency model
17:57 samth: but they're intended to basically be 1-per-processor
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20:05 RacketCommitBot: [racket] plt pushed 3 new commits to master: http://git.io/XMDI0w
20:05 RacketCommitBot: [racket/master] adjust debugger to print smaller version of values to improve performance - John Griffin
20:05 RacketCommitBot: [racket/master] add some ellipses to the debugger value truncation - Robby Findler
20:05 RacketCommitBot: [racket/master] fixed a leak in the compile locking protocol implementation and added better logging - Robby Findler
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20:29 offby1: eli: I'm honestly not sure, off the top of my head, if rudybot leaks private conversations.  I'm 75% sure that I _intended_ it not to.
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21:27 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/jpEEUA
21:27 RacketCommitBot: [racket/master] added one more log line - Robby Findler
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22:20 eli: offby1: Looks like it doesn't.
22:20 eli: samth_away: You don't need to set the responsible person if it's the default for the category.
22:20 eli: samth_away: Re "shared-nothing", that was an obvious typo.
22:21 eli: samth_away: And re places vs erlang, I think that erlangers would consider the super-lightweightedness of them to be a major feature.
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22:28 RacketCommitBot: [racket] plt pushed 3 new commits to master: http://git.io/lRxG5w
22:28 RacketCommitBot: [racket/master] Added let and define forms that generalize let-values, let*-values and define-values - James Ian Johnson
22:28 RacketCommitBot: [racket/master] Implemented Sam's suggested changes for new forms, and added a new match/values form. - James Ian Johnson
22:28 RacketCommitBot: [racket/master] Fixed the duplicate identifier bug in match-define-values and changed identifiers to conform to naming conventions. - James Ian Johnson
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22:29 offby1: yay
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23:18 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/_HGNwA
23:18 RacketCommitBot: [racket/master] adjust drracket so that it copies the definitions text before evaluating it - Robby Findler
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