#racket on 2019-11-12 — irc logs at freenode.irclog.whitequark.org

2019-09-16 20:37 samth changed the topic of #racket to: Racket v7.4 has been released: https://blog.racket-lang.org/2019/08/racket-v7-4.html -- Racket -- https://racket-lang.org -- https://pkgs.racket-lang.org -- Paste at http://pasterack.org

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03:44 <ZombieChicken> is there a simple way to determine a file's type without having to hope there is a valid extension?

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04:33 <aeth> ZombieChicken: If you want to call out to the Unix shell, you can use the unix utility called file

04:34 <aeth> It should give you one line that you can parse, but if you want to e.g. determine the programming language from parsing the file without a valid extension, that's a tougher problem

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14:51 <fftww> but there are some third-party (non-racket) libraries which do this for some programming languages, ZombieChicken

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15:35 <nisstyre> file is your best bet

15:36 <nisstyre> other than that, you can't really tell unless you know which bytes to look for

15:36 <nisstyre> that's basically what file does, it has a database of magic bytes to look for to guess the type

15:37 <nisstyre> https://github.com/file/file/tree/master/magic/Magdir

15:38 <nisstyre> if you're curious

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