#racket on 2019-03-15 — irc logs at freenode.irclog.whitequark.org

2019-03-10 18:20 lexi-lambda changed the topic of #racket to: Racket v7.2 has been released: https://blog.racket-lang.org/2019/01/racket-v7-2.html -- Racket -- https://racket-lang.org -- https://pkgs.racket-lang.org -- Paste at http://pasterack.org

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01:31 <samth> zenspider: note that (a) you probably don't have to click "check syntax" in drracket and (b) `raco doc foobar` at the command line will open the search for foobar

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11:15 <dzoe> soegaard: Finally! 1. Thank you for the pdf-dc% hints, I used them for creating permutation grids for the cryptography class: http://joe.cz/racket/test-grid.pdf

11:16 <dzoe> Part of it was also done using the crypto-lib - just for the context here: http://joe.cz/racket/aes.html

11:17 <dzoe> And also thank you for the math-lib (finally I don't have to re-use snippets of code implementing computing bezout's coefficients or modular multiplicative inverse :D )

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15:38 <efm> This is only slightly racket related. I was reading Jesse Alma's latest email and I realized I don't understand the distiction between a server that does dispatch (which I'll rephrase as 'ask for a thing, get the thing') and continuations (which I think is, "ask for this thing in this context and when it's ready, give me it")

15:38 <efm> Is that correct or am I confused?

15:40 <efm> https://docs.racket-lang.org/web-server/run.html is where I think I should start reading

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16:22 <tonyg> efm: one way to put it might be that the dispatch step is the analysis of the question being asked, while a continuation is a representation of the thing that is waiting for the answer

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16:23 <tonyg> so dispatch maps requests to handlers, but continuations are things waiting for responses

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17:45 <dzoe> What would be a good starting point for customizing slide layout in #lang slideshow?

17:45 <dzoe> I am pondering of converting my beamer template to slideshow as I am always generating a lots of figures and tables programatically in Racket ...

17:50 <efm> thank you tonyg that is helpful

17:50 <dzoe> I am pondering of converting my beamer template to slideshow as I am always generating a lots of figures and tables programatically in Racket ...

17:50 <dzoe> Sorry, bad terminal

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18:26 <efm> dzoe: you may want to look at xaringan as an example. It's in R + markdown https://github.com/yihui/xaringan

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19:14 <samth> dzoe: most slideshow code ends up being a one-off

19:15 <samth> dzoe: but you might look at https://pkgs.racket-lang.org/package/icfp-2014-contracts-talk or github.com/mflatt/talks

19:15 <samth> the key thing for customizing is `current-slide-assembler`

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22:41 <caltelt> Does anyone know if there's a way to programatically inspect a symbol for its type in typed/racket?

22:41 <caltelt> Something like :print-type, that can be used outside of the context of a top-level repl?

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