<< 29-08-2021 >>
00:07:01madpropsAbout initRand seeds ... is it ok if I use them for integration tests or would the seed be different on every machine?
00:07:13madpropsor is it assured to remain constant
00:11:11FromDiscord<konsumlamm> what? the point of `initRand` is that you pass the seed
00:21:26arkanoidwhat is the difference from a "typedef struct mystruct {...}" and "struct mystruct {...}" from nim point of view?
00:22:04arkanoidI have c2nim writing wrong cimports and I'd like to know how and if I can fix the .h
00:22:13arkanoidbut I'm not a seasoned C programmer
00:23:14madpropsI'm just wondering if the random implementation might change one day making seeds output a different thing eventually
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00:24:45FromDiscord<konsumlamm> oh, probably not
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00:28:44madpropswhy is this not working in the playground, but works locally? https://play.nim-lang.org/#ix=3xgy
00:28:48madpropsI don't see the echos
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01:51:28NimEventerNew thread by Niminem: Design choice advice for Python-to-Nim transpiler (Python Devs), see https://forum.nim-lang.org/t/8379
02:00:06FromDiscord<Peaceful Gamer> Is there an equivalent to C's `union` in nim?
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02:33:55FromDiscord<hamidb80> In reply to @Peaceful Gamer "Is there an equivalent": https://nim-lang.org/docs/tut2.html#object-oriented-programming-object-variants
02:35:19FromDiscord<hamidb80> i don't know whether you can use to interop with C or not
02:37:08FromDiscord<hamidb80> is there any tutorials/articles about using `ref` in nim >
02:37:11FromDiscord<hamidb80> (edit) ">" => "?"
02:38:28FromDiscord<Peaceful Gamer> Oh, this should work for my use case. Thank you!
02:54:07arkanoidI've finally succeeded in wrapping all function of my target lib via lots of mangling, but now I have tons of C like function "int foo(prt Tinput, ptr Toutput)" and I'd like to turn all them into something more appropriate like "proc foo(ptr Tinput): ptr Toutput" and maybe raise exception internally if int is not OK. What's the best approach to accomplish this?
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03:35:24FromDiscord<hamidb80> ah
03:35:38FromDiscord<hamidb80> channels 😐
03:37:51FromDiscord<hamidb80> https://github.com/hamidb80/watch_for_files/blob/fbedd6451ff331da3288be4afae331323963ef9d/src/watch_for_files.nim#L47
03:38:03FromDiscord<hamidb80> why do my code blocks here
03:38:30FromDiscord<hamidb80> (edit) "do" => "does"
03:38:36FromDiscord<hamidb80> (edit) "blocks" => "block"
03:40:11FromDiscord<hamidb80> note: you can try `nimble test`
03:45:01FromDiscord<hamidb80> actually the thread stops here
03:45:14FromDiscord<hamidb80> without any errors
03:50:51FromDiscord<Rika> you sure tunnel isnt nil
03:50:55FromDiscord<Rika> (edit) "nil" => "nil?"
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04:43:46FromDiscord<hamidb80> yes
04:43:54FromDiscord<hamidb80> see `tests/test.nim`
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08:10:50NimEventerNew thread by Ingo: Httpclient woes, see https://forum.nim-lang.org/t/8380
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10:54:25FromDiscord<Hamid Bluri> In reply to @NimEventer "New thread by Ingo:": "puppy triggered it in my poor old brain"
11:00:20FromDiscord<gerwy> hi, so im making a small tool, that will fetch Youtube videos and count how many tutorials are for that subject↔im making it for Godot, mostly to see its growth and compare it to Unity↔but maybe i could also do it for Nim? I don't expect much tho
11:03:24FromDiscord<gerwy> currently im checking for keywords such as "tutorial", "course", "How to" and so on, in title and description of the video↔but i found a way to get video Subtitles and i will also make a more advanced search that will also look for some keywords in the generated subtitles
11:09:00FromDiscord<Yardanico> how will you actually find youtube videos?
11:09:25FromDiscord<Yardanico> their search is quite limited in terms of what you can get and it won't give you all results
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11:21:18FromDiscord<gerwy> sent a long message, see http://ix.io/3xjo
11:21:37FromDiscord<gerwy> i could go by every month, or every two week, depends on how popular the subject is
11:22:07FromDiscord<Yardanico> well, that's not really a good way IMO, because search is pretty wonky when you try to find _all_ videos for the specific subject
11:22:12FromDiscord<Yardanico> it's next to impossible to do on youtube I'd say
11:23:25FromDiscord<Yardanico> anyway, when you do complete it, please share on the forum :)
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11:25:40FromDiscord<gerwy> well im currently thinking of making it more precise↔but its rather okay way to do it, obviously there are better ways, but i didn't found them yet↔it would be far harder if i would include also tutorials made outside the youtube, fetching videos and classifying them is easier than doing it with websites i guess
11:26:23FromDiscord<Yardanico> well, you should also know that not all people like watching tutorials on youtube - they'd rather read an article or a blog post :)
11:26:40FromDiscord<Rika> Or the docs
11:27:16FromDiscord<Hamid Bluri> In reply to @hamidb80 "https://github.com/hamidb80/watch_for_files/blob/fb": should i open an issue?
11:27:23FromDiscord<gerwy> and i can also save those videos in file↔youtube's id is 11 character, so you could say its 11 bytes per video 10k videos is only 110KB
11:27:48FromDiscord<Yardanico> yes, but how is that really related
11:28:08FromDiscord<Yardanico> you still wouldn't be able to find a lot of youtube videos that don't have a lot of views
11:28:59FromDiscord<gerwy> In reply to @Yardanico "well, you should also": yeah i know that :// i like articles or reading well made docs but i also enjoy hearing someone explaining it and not like i need to read one sentence few times to really understand what the meaning of it is↔and i think you will agree that Youtube is a place where there are a loot of tutorials
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11:29:32FromDiscord<Yardanico> i'd also say that some languages have a higher tendency for textual representation rather than visual
11:29:54FromDiscord<Yardanico> i mean some communities are more inclined to make articles than videos, some are the opposite
11:30:12FromDiscord<gerwy> In reply to @Yardanico "you still wouldn't be": why? i can easily find videos who has like 10 views and are still tutorials or just videos making some stuff in Godot or even Nim↔im literally watching video with 141 views about person learning SDL and Nim
11:30:32FromDiscord<Yardanico> because youtube is youtube, and its search would never give you all results
11:30:42FromDiscord<gerwy> unless i make it more narrow
11:30:50FromDiscord<Yardanico> you can't bruteforce all words
11:30:55FromDiscord<gerwy> like, only videos from 2017-05-01
11:31:03FromDiscord<gerwy> with keyword Nim
11:31:32FromDiscord<gerwy> if the video doesn't have Nim in title, description or even in hashtags, there is very high chance its not even about Nim so i don't even count it
11:31:51FromDiscord<gerwy> there are youtube operators, you can use them to make your search more narrow
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11:31:53FromDiscord<Yardanico> In reply to @Life Sucks "like, only videos from": except that you can't do that
11:31:59FromDiscord<gerwy> like using wildcards
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11:32:05FromDiscord<gerwy> or specifying the order of words
11:32:12FromDiscord<gerwy> In reply to @Yardanico "except that you can't": i can :3
11:32:15FromDiscord<Yardanico> how?
11:32:35FromDiscord<gerwy> well it is a feature in Youtube's v3 API
11:32:37FromDiscord<gerwy> but
11:32:39FromDiscord<gerwy> im not using it
11:32:43FromDiscord<Yardanico> youtube doesn't allow you to search videos newer than specified date, and if you're using Google search to find youtube videos - believe me, even google doesn't have all of youtube videos indexed
11:32:50FromDiscord<Yardanico> as strange as that might sound
11:32:51FromDiscord<gerwy> because of that, i found out you can use Youtube search operators
11:32:59FromDiscord<gerwy> and when you do something like
11:33:05FromDiscord<Yardanico> also let's move to #offtopic
11:33:11FromDiscord<gerwy> oh okay
11:33:19FromDiscord<haxscramper> Honestly with amount of nim videos it would be faster to just hand-pick them into community list
11:35:16FromDiscord<Hamid Bluri> In reply to @hamidb80 "https://github.com/hamidb80/watch_for_files/blob/fb": it does work with passing `ptr` instead of `ref`
11:35:56FromDiscord<gerwy> In reply to @haxscramper "Honestly with amount of": thats why i said i wasn't expecting a lot :// but its different story for Godot ↔i noticed a big growth of videos that came up about Godot in 2020 and in 2021 (can be about Ace Attorney idk lol)
11:37:06FromDiscord<Yardanico> @haxscramper i think you underestimate number of youtube videos a bit :)
11:37:14FromDiscord<Yardanico> nim youtube videos
11:38:56FromDiscord<haxscramper> there are that many?
11:39:11FromDiscord<haxscramper> I thought there several dozens at best, if you exclude this nim tutorial series
11:39:14FromDiscord<Yardanico> no, there are much more than that
11:39:23FromDiscord<gerwy> i think there are more than we think, they are just not as popular, they mostly have less than 1k views
11:39:41FromDiscord<haxscramper> Good to know
11:41:34FromDiscord<gerwy> i have two issues with Youtube search tho
11:41:51FromDiscord<gerwy> first is that there can't be more than 500 videos uploaded in one day, because i won't know if there is more
11:41:58FromDiscord<Yardanico> @haxscramper there are nim videos like that https://www.youtube.com/watch?v=ZJu0ljI_uUU :P
11:42:19FromDiscord<Yardanico> https://www.youtube.com/watch?v=LZJwRS9VXwQ
11:42:42FromDiscord<haxscramper> well, I was talking more about meaningful things
11:42:49FromDiscord<Yardanico> don't be rude :P
11:43:10FromDiscord<gerwy> second, idk if that happens in code, can be because i didn't tried yet but, when i type NimConf for example↔it doesn't want to search for NimConf, instead it does this annoying "did you mean: MiniConf?" and doesn't include operators then and just does a default search
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11:43:42FromDiscord<gerwy> btw, here is a little article about operators Yardanico↔https://seosly.com/youtube-search-operators/
11:43:47FromDiscord<Yardanico> yeah i read that
11:43:49FromDiscord<gerwy> i took it from here
11:43:52FromDiscord<Yardanico> i know most of them already
11:43:59FromDiscord<Yardanico> because they're the same on google, also we should be in #offtopic :)
11:44:00FromDiscord<gerwy> because i knew some of them, i didn't know there was more
11:44:13FromDiscord<gerwy> oh right i thought this is offtopic
11:49:18FromDiscord<Hamid Bluri> In reply to @Rika "you sure tunnel isnt": do `ref` types get deep copied when i pass them to another thread?
11:50:06FromDiscord<Rika> yes
11:50:24FromDiscord<Rika> `Sends a message to a thread. msg is deeply copied.`
11:50:35FromDiscord<Hamid Bluri> so i can't pass a `ref Channel[T]`
11:50:43FromDiscord<Rika> oh you mean that way
11:51:20FromDiscord<Hamid Bluri> i think compiler should give me a warning
11:51:23FromDiscord<Rika> well i think its still deep copied
11:51:42FromDiscord<Hamid Bluri> yeah it works fine with `ptr`
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11:54:07arkanoidhaxscramper, I've finally succeeded in the "last 5%" conversion process of the header file I've sent you. I've used c2nim wit lots of mangle, grep, sed and so on, but at the end it seems to work
11:54:45arkanoidI've put the whole process into a bash script
11:54:53FromDiscord<haxscramper> With c2nim it is more like 20+%, but congratulations
11:57:10arkanoidthis is yeah but I had to preprocess first, just like nimterop
11:59:27arkanoidhere's the final bash script https://termbin.com/f7xv
12:03:59FromDiscord<haxscramper> > `(cat - soapStub.nim | sponge soapStub.nim) <<'EOF'↔type`
12:04:03arkanoidit may be possible to skip preprocessing with some more work
12:04:50arkanoidhaxscramper, yes, it was to put all the generated types into a single type section, as they are mutually recursive
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12:07:11arkanoidprobably there are many many possible improvements, I jent went on until compilation and successfull test of one call. Surely is everything but a rigorous way to handle the code
12:07:58arkanoidI've also found a bug in c2nim on the way, I've already shared a minumum testcase
12:09:12arkanoidlong story short, my work is surely proof that c2nim helps but cannot replace a tool like yours
12:09:39NimEventerNew post on r/nim by WrongJudgment6: Anyone interested in making a PR adding Nim?, see https://reddit.com/r/nim/comments/pdu3d4/anyone_interested_in_making_a_pr_adding_nim/
12:12:10arkanoidwhat I'm missing the most in c2nim mangle engine is the possibility to uppercase a capture
12:12:27arkanoidmaybe is possible, but I don't know how
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12:15:02FromDiscord<haxscramper> You can probably make some kind of abomination that replaces a with A, b with B, c with C etc.
12:16:03arkanoidyeah I've been thinking about that, but yeah, abomination. I've added a capital T in front of every type and stop
12:17:28arkanoid"how i stopped worrying and learned to love the PEG"
12:19:02arkanoidI can schrink down the transformation rule, actually. I'm in the refactoring phase
12:21:41arkanoidwould be nice if I could put string format functions in the second argument of the mangle
12:22:37FromDiscord<haxscramper> c2nim could've called to `format_logic.nims` for that
12:23:28FromDiscord<haxscramper> ACtually I should do this as well, I depend on compiler anyway, so it does not matter.
12:23:35FromDiscord<haxscramper> It didn't occur to me (until now) that I don't have to force users to compile whole `hcparse` thing, even if they use libclang variant
12:23:39arkanoidsomething like #mangle "^ 'foo__' {@}'_bar'" "capitalize($1) 'Bar'"
12:25:50arkanoidI've a question for you
12:27:02arkanoidas I've finally succeeded in wrapping all function of my target lib via lots of mangling I now have tons of functions like "int foo(prt Tinput, ptr Toutput)" and I'd like to turn all them into something more appropriate like "proc foo(ptr Tinput): ptr Toutput" and maybe raise exception internally if int is not OK. What's the best approach to accomplish this?
12:28:16arkanoidI could surely build a macro that does this given the ProcDef, but I need to call this on every proc defined in .nim file
12:28:54arkanoidlong story short: how to parse the ast of a nim module/file at compile time?
12:29:11emeryI like to use custom pragmas to dedup whatever I get from c2nim
12:30:09arkanoidemery, could you please elaborate a little? Or give example
12:32:16FromDiscord<haxscramper> `> how to parse the ast of a nim module/file at compile time?` - https://nim-lang.org/docs/macros.html#parseStmt%2Cstring
12:32:40emeryarkanoid: i do stuff like this over and over, but i don't know about uppercasing https://git.sr.ht/~ehmry/nim_opusenc/tree/master/item/src/opusenc.nim#L7
12:33:11FromDiscord<haxscramper> But I doubt that's what you really need
12:33:46emerybbl
12:34:08FromDiscord<haxscramper> You can write a pragma macro that wraps raw C proc (either by creating new toplevel, or wrapping raw one inside like in emery's example)
12:37:18FromDiscord<haxscramper> Something like `{.wrapC(outArgs = [Toutput], goodInt = 0).}`
12:37:19FromDiscord<haxscramper> Or something less verbose
12:38:51arkanoidemery, that's for the link. What is $1 in importc: "ope_$1" ?
12:40:48arkanoidok I guess $1 is the nim proc name
12:41:44arkanoidbut after adding custom pragma to every proc? What's the next step to generate "modified" version for each of them at compile time?
12:43:27FromDiscord<haxscramper> Implement a macro that generates code
12:44:21FromDiscord<haxscramper> Not sure if I understand the question. You annotate all required procs with macro, and it does generate code
12:44:21FromDiscord<haxscramper> I don't think there is a way around annotating all proc arguments somehow, so that solution is as good as any
12:44:41FromDiscord<haxscramper> `s/all arguments/special arguments/`
12:49:07arkanoidsadly I can't add macro to every proc with c2nim, I could regex, or actually parseStmt the whoe nim and filter nnkProcDef
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12:55:58FromDiscord<haxscramper> There are too many procs to manually annotate? Well, I suppose there are. Yes, you can do it with `parseStmt`, though honestly it feels like a bad tool for the job, and `compiler/parser` feels like a better suited tool. https://github.com/haxscramper/hack/blob/e73fc20ce103e1a195826fc6abcc14285dda0283/testing/nim/compilerapi/visit_each_proc.nim
12:56:28FromDiscord<haxscramper> Or you can use hnimast/pnode\_parse
12:57:39arkanoidyeah but this round I prefer a compile time thing instread of generating a nim file with another program
12:57:53arkanoidhow can I print a NimNode as an ast tree?
12:58:03arkanoidnoob question, but I'm stuck
12:58:43arkanoidI've proc foo(n: NimNode) called from static block, the input is a filtered node from parseStmt
12:59:29FromDiscord<haxscramper> `.repr()`
12:59:30FromDiscord<haxscramper> Also `parseStmt` is exactly the same as think I've linked
12:59:30FromDiscord<haxscramper> You would have to `parseStmt()` on the whole file and then write it back
13:01:57arkanoidyeah, I'm using it because you linked it :D I'm on your answer right now
13:02:37arkanoid.repr prints the rendered AST, nim code basically. I'd like something like dumpTree
13:07:53FromDiscord<haxscramper> `.treeRepr()`
13:11:04arkanoidthanks! why did autocomplete missed it? I've this strange problem that when I move vscode window to second screen the autocomplete engine goes wild. I have to close and reopen vscode. Same thing happens after resuming from standby. Not blaming nim extension, but vscode
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14:53:04arkanoidAt the end I think the best solution is like emery suggested ad add a custom pragma to every proc using regex after c2nim pass
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15:32:36NimEventerNew question by The Fool: installing the nimpretty binary, see https://stackoverflow.com/questions/68974409/installing-the-nimpretty-binary
15:50:53FromDiscord<linux user> if it was nux , much easier
15:50:58FromDiscord<linux user> (edit) "nux" => "nix"
15:51:11FromDiscord<Yardanico> wdym?
15:51:29FromDiscord<Yardanico> that guy is on debian, ubuntu or some other distro with `apt`
15:51:56FromDiscord<Yardanico> ah, probably ubuntu 20.04 LTS, it has nim 1.0.6
15:52:34FromDiscord<linux user> brruh
15:52:54FromDiscord<linux user> you can download the latest nightly build, it has nimpretty in nim1/bin
15:53:01FromDiscord<linux user> sudo cp nimpretty /bin
15:53:03FromDiscord<Yardanico> did you even read the SO post?
15:53:13FromDiscord<linux user> no
15:53:16FromDiscord<Yardanico> In reply to @richard stallmen(crazy GNU guy) "sudo cp nimpretty /bin": doing that is pretty stupid, you don't need nimpretty system-wide
15:53:22FromDiscord<Yardanico> In reply to @richard stallmen(crazy GNU guy) "you can download the": or you can just use choosenim
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18:38:22FromDiscord<Anuke> How do I pass the instantiated generic type of a generic proc to a macro? https://play.nim-lang.org/#ix=3xlX
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18:54:08FromDiscord<haxscramper> sent a code paste, see https://play.nim-lang.org/#ix=3xm5
18:56:25FromDiscord<Anuke> That works, thanks
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19:40:57NimEventerNew Nimble package! watch_for_files - cross-platform file watcher with database, see https://github.com/hamidb80/watch_for_files
19:41:00nrds<R2D299> itHub: 7"a cross-platform file watcher with database"
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21:28:33FromDiscord<Varriount> Anyone know how I would go about calling the Nim compiler as a library?
21:34:35arkanoidWhat does export `[]` do?
21:36:11FromDiscord<Varriount> sent a code paste, see https://play.nim-lang.org/#ix=3xn3
21:46:15arkanoidVarriount yes
21:49:31FromDiscord<Varriount> arkanoid: https://nim-lang.org/docs/manual.html#modules-export-statement , for the `[]` procedure (usually invoked via `somevariable[n]`)
21:52:01arkanoidVarriount: but here there is no proc [] https://github.com/nim-lang/irc/blob/master/src/irc.nim
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22:02:54FromDiscord<dom96> In reply to @Varriount "Anyone know how I": What's your use case?
22:03:15FromDiscord<dom96> arkanoid: it's exporting tables.`[]` IIRC
22:14:23arkanoidOK. Thanks
22:27:44FromDiscord<Varriount> In reply to @dom96 "What's your use case?": Using AFL-Fuzz on the Nim compiler. But I think I got it now. It looks like it would be too complex to do effectively at the moment.
22:29:22FromDiscord<Varriount> One would need to write something to take AFL-Fuzz's input, and split it into multiple modules (possibly based on some pattern).
22:41:39FromDiscord<leorize> you can direct the fuzzer input into Nim's parser
22:41:46FromDiscord<leorize> s/in/out/
22:42:29FromDiscord<leorize> should let it train on some actual nim programs first though so it doesn't spam the parser with inputs that does nothing
22:44:18FromDiscord<Varriount> leorize: But the parser will only get one "module" that way.
22:45:14FromDiscord<Varriount> For fuzzing a compiler, you ideally want to have the compiler handle multiple modules, to find bugs related to symbol handling and such.
22:45:30FromDiscord<leorize> for those I think PBT is better
22:45:35FromDiscord<Varriount> PBT?
22:45:44FromDiscord<leorize> property-based testing
22:46:06FromDiscord<leorize> [saem](https://matrix.to/#/@saem:matrix.org) is very knowledgeable in that subject
22:46:21FromDiscord<leorize> I'd say that to start, you just need to fuzz the parser
22:46:23FromDiscord<Varriount> In my case specifically, I'd like to find bugs related to incremental compilation.
22:46:26FromDiscord<leorize> you don't even need to start sem
22:47:12FromDiscord<leorize> if you wanna fuzz IC you gotta get through the #1 bug that is IC doesn't work \:p
22:47:31FromDiscord<Varriount> Oh. I thought it was "finished"?
22:47:56FromDiscord<leorize> looks like there are some phase ordering issues, it's not compatible with arc/orc destructors
22:48:23FromDiscord<Varriount> I know Araq did some work on it, so I had assumed that it was working now (or, well, supposed to work)
22:48:53FromDiscord<leorize> it is supposed to work
22:48:55FromDiscord<leorize> it just doesn't
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22:50:47FromDiscord<Elegantbeef> Wait are you talking about me or IC?
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22:51:41FromDiscord<Varriount> Just society in general
22:53:18FromDiscord<Varriount> zevv: Just so you know, NPeg appears to be handling a translated version of PostgreSQL's 8000 line-long grammer fairly well.
23:00:21NimEventerNew thread by Lotzz: Doc2tex, see https://forum.nim-lang.org/t/8381
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23:38:57madpropshmm so the doc generator for tables looks messed up
23:39:08madpropsit displays: (-173515851481370370, 45, "-....-")
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23:39:22madpropswhen it should be like 'K': "-.-" etc
23:39:55madpropsmight as well make the table private since it looks terrible
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23:45:55madpropsa solution is to make the keys a string too
23:46:27FromDiscord<Elegantbeef> You could always just use a char array
23:46:37FromDiscord<Elegantbeef> char indexed array
23:48:15madpropsactually making them strings didn't help .. going to try that char array
23:51:32madpropsthis is the table https://play.nim-lang.org/#ix=3xnL
23:52:08madpropsidk if the keys are supposed to have a certain order, for they to work as an array
23:52:21madprops`Error: invalid order in array constructor`
23:52:35FromDiscord<Elegantbeef> Yea they have to be in the ordinal order
23:54:11FromDiscord<Elegantbeef> So yea this wont be the most ideal for an array, but you could