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02:01 RacketCommitBot: [racket] plt pushed 3 new commits to master: http://git.io/R9Qr8w
02:01 RacketCommitBot: [racket/master] Contracts for almost all icon-producing functions - Neil Toronto
02:01 RacketCommitBot: [racket/master] Documented logos - Neil Toronto
02:01 RacketCommitBot: [racket/master] Removed timing examples (not reliable) - Neil Toronto
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11:28 wingo: hello, racketeers
11:29 wingo: i was wondering.  is there a way in racket to get a list of all bindings at a given point in a program, probably as syntax objects?
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11:34 veer: I am not too sure , but (namespace-mapped-symbols) do return something like that
11:35 wingo: i would think that would be for module-level bindings, not lexical bindings
11:35 wingo: i'm interested in the lexicals
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14:59 String: Hi, does anyone know why (bitmap "pictures\\ocean.png") will return an image
15:00 String: But (bitmap (string-append "pictures\\" "ocean" ".png")) will not?
15:00 String: Using the 2htdp/image library
15:01 jonrafkind: what does just the string-append print out
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15:01 jonrafkind: I suppose there is a chance that `bitmap' is a macro
15:02 jonrafkind: yes it is
15:02 jonrafkind: http://docs.racket-lang.org/teachpack/2htdpimage.html?q=2htdp#(form._((lib._2htdp/image..rkt)._bitmap))
15:02 jonrafkind: this is so that if its an identifier it can do something special -- act the same way as require
15:03 jonrafkind: although I think it should handle arbitrary expressions, can you file a bug for it?
15:05 String: I'm new to a lot of this, so I don't understand a lot of what you said
15:05 String: And I don't know where I'd file the bug, sorry
15:06 bremner: you can use DrRacket to file bugs
15:06 String: Found it, thanks
15:17 String: So then, is there a way I could get bitmap to work that way?
15:18 String: While it's not really a problem if all I wanted to do was use "ocean", but when that part of the string becomes a variable it's an issue
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15:52 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/yirwiw
15:52 RacketCommitBot: [racket/master] add 'side-condition' to define-judgment-form (it does not have an implicit - Robby Findler
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16:23 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/atWhuw
16:23 RacketCommitBot: [racket/master] Finished images/icons contracts and docs - Neil Toronto
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19:22 offby1: Am I the only person who thinks an "in-cdrs" sequence would be useful?  You give it a list, say (1 2 3), and it returns in succession (1 2 3) (2 3) (3) ' ()
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19:22 yoklov: ive thought that before
19:23 yoklov: it would be useful
19:25 jonrafkind: offby1, whats your use case?
19:31 offby1: jonrafkind: hard to articulate.  I want to traverse a list, and at each iteration, I want not just one element, but also the one after it.
19:31 offby1: it's easy enough to write the sequence, in any case: (define (in-cdrs seq) (make-do-sequence (lambda () (values values cdr seq (compose not null?) #f #f))))
19:31 jonrafkind: oh so like (for ([elements (zip list (cdr list))]) ...)
19:31 offby1: gotta run now :)
19:31 offby1: jonrafkind: yes.  That might be simpler.
19:51 eli: offby1: I've had that need before -- and by itself it doesn't justify an `in-cdrs'...
19:51 eli: rudybot: (define l '(a b c d))
19:51 rudybot: eli: your sandbox is ready
19:51 rudybot: eli: Done.
19:52 eli: (for/list ([x (in-list l)] [y (in-list (cdr l))]) `(,x and ,y))
19:52 eli: rudybot: (for/list ([x (in-list l)] [y (in-list (cdr l))]) `(,x and ,y))
19:52 rudybot: eli: ; Value: ((a and b) (b and c) (c and d))
19:52 eli: offby1: Like that.
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21:21 offby1 smacks forehead
21:22 offby1: y'all making me feel silly, now
21:24 offby1: heh, turns out that's how I was doing it already.
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22:32 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/6c3owQ
22:32 RacketCommitBot: [racket/master] adjust typesetting so the ellipsis uses the default style, not - Robby Findler