The Nineteenth Byte

Ginger

17:06

progress is being made

mousetail

Wow that's fast

Ginger

it doesn't do anything, but it sure does look pretty

mousetail

It really does, what UI library are you using?

Ginger

Textual

made by the same people that made Rich

mousetail

So this will be a offline app that you need to download?

Ginger

17:09

yus

should just be a pip install crosstalk

(although I hear the Textual devs are planning on PyOdide compatibility...)

mousetail

You'd need to handle CORS somehow though

Ginger

eh, that's a later thing

Ginger

17:36

YOOOOOOO

authentication worked!

much pog

Seggan

17:49

@Ginger wait remind me that TUI stands for

Ginger

@Seggan Terminal UI

Seggan

Hrm but that’s a GUI, no?

Ginger

nope! it's all in the terminal

Seggan

in The Sand Trap, Apr 20 at 20:48, by Ginger

wait, you thought about CORS before having issues with it???

@Ginger …

how

Ginger

magic™

mousetail

17:52

You always need to worry about CORS

Seggan

@mousetail yew is a web framework tho

mousetail

Depends how you do the UI I guess, if you want to host it online you could use a yew frontend

Seggan

Also, one guy in the papermc discord uses discord through IRC, that could be an option

mousetail

You gotta hurry up if you want to catch up to Ginger though whatever tech you choose to use

Seggan

I haven’t started tho

i will within the hour tho

@mousetail also, I’ve never dealt with threads in rust, so it’s def gonna take longer

mousetail

18:05

You don't need to deal with them directly tokio should handle them for you

Seggan

Never dealt with tokio either

I haven’t done much in rust

mousetail

Well this will be a good leaning excercise then, if you succeed you'll know a lot of rust

Seggan

I know enough of the core language, it’s the libraries I don’t know

in fact, techecally I barely learned any rust at all, I just applied my knowledge of other langs to it

mousetail

The ecosystem really brings the language together into something that can actually be used for real world problems

This applies to every language

You'll also need tungstenite to connect to the websocket

Seggan

That’s one I haven’t heard of

mousetail

18:20

It's a pun. Websockets are often abbreviated as WS and the chemical formula for tungstenite is WS2 so that's why they named that library that way. It's the only tokio compatible webocket library I'm aware of

Seggan

mm

Ginger

18:38

progress has been made:

still needs some work tho

mousetail

That's very impressive

For just 3 hours

Ginger

it's 132 lines lol

a testament to the ease-of-use of the libraries I'm using

mousetail

Less code is better

Ginger

I'm not sure how to handle separating blocks of messages by user...

mousetail

Not only did you get it working fast you golfed it too

Ginger

18:41

lol

ugh, I'm supposed to be doing actual productive work rn :/

mousetail

It's friday

No productivity allowed on fridays

Ginger

if only

Seggan

18:53

@mousetail the motto of our site

mousetail

My motto in real life too

Seggan

@mousetail wrong: no productivity allowed on saturdays

@mousetail i think for everyone lol

mousetail

I'm in heaven when I see a PR with more deletions than additions

Instant approve, I don't even look

Seggan

@Ginger mind if i dig through sechat? i have no idea how se auth works

Ginger

sure, it's open-source so it's not like I can stop you :p

good luck tho

Seggan

18:59

@Ginger i meant that as more in "i hope you dont mind me violating your license if i copy something by accident"

Ginger

hmmmmmm

well, sechat doesn't currently have a license

I may or may not have forgor to add one lol

mousetail

You should probably add a licence

Seggan

Ginger

@Seggan I hereby license sechat's auth code to you for your use in this project, with the stipulation that you have to credit me

I'll add an actual license later™

Seggan

:thumbsup:

Ginger

19:01

noice

now back to banging my head against rich

mousetail

Your chat app should definatly support emojis with the :x: syntax

Seggan

yes i am planning to do that lol

mousetail

Awesome

Ginger

augh

Seggan

now i am debating whether to go full hardcore lightweight and use a tui or make an actual gui

Ginger

19:04

:|

Seggan

in the interest of time, ill be using a tui

Ginger

oh my god

the app supports emojis and I didn't even have to do anything

get dunked on

Seggan

lol

Ginger

but if it supports that why doesn't it support Rules

Seggan

whats that

mousetail

19:16

Does it support markdown syntax?

Ginger

@mousetail no, sadly

@Seggan part of rich

caird coinheringaahin g

If you're going to be doing experimenting with bots or similar, please do it in the Sandbox

mousetail

Kosova

Kosova (Arnavutça: Kosovë, Sırpça: Косово) veya resmî adıyla Kosova Cumhuriyeti (Arnavutça: Republika e Kosovës, Sırpça: Република Косово / Republika Kosovo), Balkanlar'da bulunan ve dünyada sınırlı tanınırlığa sahip denize kıyısı olmayan bir ülke. Kuzeyde ve doğuda Sırbistan, güneyde Kuzey Makedonya ve Arnavutluk, batıda ise Karadağ ile komşudur. 1999'da Birleşmiş Milletler kontrolü altına alınan Kosova, 2008'de Sırbistan'dan tek taraflı olarak bağımsızlığını ilan etti. Mart 2020 itibarıyla 97 ülke tarafından tanınmaktadır. Kosova'nın bağımsızlığını tanımayan Sırbistan, bölgeyi kendisine bağlı...

Does oneboxing work?

Probably move this convo to sandbox yea

Seggan

turns out you can add a email/passwd login as well as google auth at the same time

Ginger

indeed

Seggan

19:30

@Ginger satisfactory enough?

/*
 All code in this module derived from github.com/GingerIndustries/sechat has been explicitly
 allowed by the author to be used in this project: chat.stackexchange.com/transcript/message/63516626#63516626
 The credit for all such code is attributed to the author of the above repository.
 */

Ginger

yus

HAHA FINALLY

Seggan

20:07

@Ginger with regards to this:

      r = self.session.post(
        "https://{}/users/login-or-signup/validation/track".format(host),
        data = {
          "email": email,
          "password": password,
          "fkey": fkey,
          "isSignup": "false",
          "isLogin": "true",
          "isPassword": "false",
          "isAddLogin": "false",
          "hasCaptcha": "false",
          "ssrc": "head",
          "submitButton": "Log in"
        }

data is a json body, right?

Ginger

I don't think so

I'm pretty sure that's supposed to be form-encoded data

Seggan

ah wait yes

Ginger

(also make sure you're looking at the v2 branch)

Seggan

~~coulda told me earlier~~

Jacob

21:14

is there a challenge for "check if an item is included in an array"? i have a clever idea for doing it in a language

Dannyu NDos

21:43

@Jacob Better to replace "an array" by "a sequential container".

'Cause some languages, Haskell for example, would have a hard time representing an array.

@mousetail Fun fact: Kosovo is the only unrecognized state that is recognized by South Korean goverernment.

Seggan

im rather enjoying rust's ? operator

Dannyu NDos

I wish I could use Rust's ? operator for arbitrary monads.

That would let me concat-map lists, compose functions, write on a monoid, and so many more.

Seggan

22:01

i love how it can map errors for me

Dannyu NDos

It doesn't "map" errors tho; it propagates errors.

Bbrk24

@Seggan What does it actually do?

Seggan

propagates errors upward, while returning the result if ok

Bbrk24

so like how Java etc handle errors by default?

Dannyu NDos

22:18

Dunno about Java, but I'd say it's like how Haskell handles errors.

Monads ftw

Bbrk24

I don't know Haskell, I've only really used C-family languages and a little bit of assembly

Dannyu NDos

I was a C++ simp and learning Haskell changed a major part of my life.

Hope everyone will be empowered like that.

Bbrk24

I much prefer functional interfaces built in C-family languages like Swift's Sequence family of protocols

Seggan

@Bbrk24 pretty much, but rusts errors are the returning kind

Bbrk24

22:34

so it’s standard to use Result instead of throw? makes sense, I tend to prefer Result-like enums

Jacob

@DannyuNDos i wasn't suggesting that i would post it, just asking if it existed

Seggan

@Bbrk24 there is no throw in rust, only panic

Bbrk24

~~make custom throw/catch macros using setjmp and longjmp~~

I have a more serious note about ObjC error handling but I don’t want to type it on my phone

Rydwolf Programs

23:05

@Seggan Tho ? is similar to throw in how you use it

Seggan

It’s more like get or throw

Bbrk24

23:26

So Objective-C had the concept of errors and exceptions. Errors are represented by NSError and its subclasses; exceptions are represented by NSException and its subclasses. Typical errors, such as the equivalent to C# InvalidArgumentException, are represented by a trailing out-param error:(NSError **)error. (If you want to be pedantic, the type should be out NSError *__autoreleasing _Nullable *_Nullable. But I digress.)

Unrecoverable conditions, such as calling a method that doesn't exist or receiving ^C from the user, are represented with exceptions. Exceptions can be thrown with the @throw compiler directive or the [-raise] method; the two are equivalent. NSExceptions can be caught with @try/@catch, but this is generally discouraged. The most common use case for @catch is something like this:

@try {
  doSomething();
}
@catch(NSException *anException) {
  NSException *myException = [[MyException alloc] initWithName:@"MyExceptionName"
                                                        reason:@"Exception thrown by doSomething"
                                                      userInfo:[NSDictionary dictionaryWithObject:anException
                                                                                           forKey:NSUnderlyingErrorKey]]];
  [myException raise];
}

Or so I've heard. I tend to avoid Objective-C when I get the choice

</textwall>

Seggan

@RydwolfPrograms i need ur rust expertise

i have this code:

let room = Room::new(...);
self.rooms.insert(room_id, room);
return Ok(self.rooms.get(&room_id).unwrap());

the function returns a Result<&Room, SeError>

is there a way i can get (and return) a reference to room without having to pull it out of the HashMap again?

Rydwolf Programs

Does &room still work?

If not I'd guess probably not

Seggan

@RydwolfPrograms nope

room is moved into the hashmap

Rydwolf Programs

Does the insert return anything?

There might be a way to insert it that returns a reference to the entry?

Bbrk24

Not familiar with Rust, but in C++ it returns a reference to the key-value pair, yeah

Seggan

23:37

@RydwolfPrograms Option<Room>

Bbrk24

The C++ one returns a std::pair<const KeyType, ValueType>&, iirc

Rydwolf Programs

@Seggan That's what the insert returns?

If so you can just .as_ref().unwrap() that right

Seggan

ah never knew about as_ref()

ty

ah wait nvm

cannot return value referencing temporary value

Bbrk24

insert returns the previous value it looks like

and None if the key is new

which is logical but makes this more difficult

I suppose you could insert and then immediately get but there has to be a simpler way

Seggan

yeah thats what im doing

Bbrk24

23:45

C++ also has a number of almost-identical functions with slightly different semantics iirc, like insert vs emplace

Hello, World!

0

A: "Hello, World!"

Java, 47 bytes void main(){System.out.print("Hello, World!");} This uses JEP 445: Unnamed Classes and Instance Main Methods which is released in Java 21 as a preview. With the preview JDK, run like this: java --source 21 --enable-preview Main.java

Bbrk24

@Seggan stupid question: if you retrieve &room before calling insert, does the insertion still invalidate it?

Seggan

nope bc its borrowed

Bbrk24

I was just thinking that if “move” typically means just handing off ownership of a pointer without actually moving data, a reference to the object — which is really just a pointer with extra steps — wouldn’t necessarily be invalidated.

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