#racket on 2019-08-11 — irc logs at freenode.irclog.whitequark.org

2019-05-22 02:51 samth changed the topic of #racket to: Racket v7.3 has been released: https://blog.racket-lang.org/2019/05/racket-v7-3.html -- Racket -- https://racket-lang.org -- https://pkgs.racket-lang.org -- Paste at http://pasterack.org

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00:03 <bremner> hmm. running "raco setup" after the "raco pkg install" seems to have made "raco frog" work.

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00:10 <bremner> well. nvm, it must have been my half finished configuration. raco pkg install seems to set up the raco-commands now.

00:12 <endobson> If I have a mutable hash and I want an immutable one with the same mappings, what is the easiest way to get it?

00:13 <endobson> Is it '(make-immutable-hash (hash->list h))'?

00:14 <soegaard> I believe so.

00:15 <endobson> k, thanks. My nice functional loop is no more

00:15 <endobson> Since mutable accumulators are much easier to work with

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00:21 <bremner> another raco pkg puzzle. raco pkg install --scope-dir /usr/local/... didn't seem to make any .zo files.

00:24 <bremner> config.rktd is https://paste.debian.net/1095304/

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11:25 <bremner> ok, that's pretty strange, but it seems to work to call "raco pkg install --scope-dir /usr/local/whatever frog" followed by "raco setup --pkgs frog"

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20:30 <endobson> In match is there an easy way to match 0 or 1 of something?

20:32 <endobson> this would be like ~optional in syntax-parse

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