companion_cube changed the topic of #ocaml to: Discussions about the OCaml programming language | http://www.ocaml.org | OCaml 4.11 release notes: https://caml.inria.fr/pub/distrib/ocaml-4.11/notes/Changes | Try OCaml in your browser: http://try.ocamlpro.com | Public channel logs at http://irclog.whitequark.org/ocaml
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<d_bot> <dj charlie> hey pretty sure there's a ppx out there that takes a recursive structure and it generates random variations of the structure for testing
<d_bot> <dj charlie> what is it?
<d_bot> <dj charlie> > ml with nice macros
<d_bot> <dj charlie> rust?
<d_bot> <dj charlie> lol
<companion_cube> :-°
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<d_bot> <theangryepicbanana> Nemerle ;)
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<d_bot> <dj charlie> why does ```let regex = Str.regexp "[ -:]";;
<d_bot> <dj charlie> ``` if i string match
<d_bot> <dj charlie> ```let regex = Str.regexp "[ -:]";;
<d_bot> <dj charlie> ```
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<d_bot> <dj charlie> ```1-3 a: abcde
<d_bot> <dj charlie> ```
<d_bot> <dj charlie> ```- : string list = [""; ""; ""; "a"; ""; "abcde"]
<d_bot> <dj charlie> ```
<d_bot> <dj charlie> ?
<d_bot> <dj charlie> seems a bit weird
<d_bot> <dj charlie> if i change to ```let regex = Str.regexp "[: -]";;
<d_bot> <dj charlie> ``` it returns ```string list = ["1"; "3"; "a"; ""; "abcde"]```
<d_bot> <dj charlie> so weird!
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<d_bot> <Bluddy> The former is every character from space to colon. The latter is {colon, space, dash}.
<d_bot> <Bluddy> " Ranges are denoted with -, as in [a-z]...To include a - character in a set, make it the first or the last character of the set."
<d_bot> <dj charlie> OH DANG YOU'RE RIGHT
<d_bot> <dj charlie> OH MAN
<d_bot> <dj charlie> oh man
<d_bot> <dj charlie> i'm cringing so hard right now
<d_bot> <dj charlie> thanks
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<d_bot> <jaap> Would it be a good idea to have an annotation for externals that they are pure? This would allow the compiler to do optimizations like hoisting them out of loops. Or is there another way to achieve this?
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<ldbeth> is there a way to optimize this snippet https://pastebin.com/GJGZWB9H
<Drup> is it really perf sensitive ?
<ldbeth> this creates a 0.1s lag compared to the old solution calling C tgetstr
<Drup> I would be very surprised if that function was the only reason
<Drup> but otherwise: you can use a buffer, it'll be faster
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<ldbeth> I see, thank you
<Drup> (and make your `get` function return a sum type representing the styling, instead of making 6 tests)
<Drup> (iirc, the stylings are mutually exclusive anyway)
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<companion_cube> they're not
<companion_cube> you can combine bold, background, foreground _at least_
<companion_cube> possibly bold and underline, not sure
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<d_bot> <EduardoRFS> @jaap hmm the problem is that only a small subset of this optimisations would benefit from your `[@@pure]` external. As most of them require actual code to do anything.
<d_bot> <jaap> Hmm ok, wouldn't it get hoisted out?
<d_bot> <jaap> Could also be implemented as a ppx potentially
<d_bot> <jaap> I have this function sel("aString") that is quite expensive, but is pure and always returns the same result
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<d_bot> <jayylmao> does anybody know where to find the documentation for Camomile? or at least a good entry-point mli?
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<d_bot> <EduardoRFS> There is any reason for this not be valid on the syntax? The AST supports it? The attribute on a parameter
<d_bot> <EduardoRFS>
<d_bot> <EduardoRFS> ```ocaml
<d_bot> <EduardoRFS> type (('ty)[@attr]) x
<d_bot> <EduardoRFS> ```
<d_bot> <EduardoRFS> even the printer supports it
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