The Nineteenth Byte

noodle man

00:19

@TheThonnu i already commented on a while back it but i still think it would be better

Bubbler

I think I'm gonna VTC this with a custom close reason, as there seems to be a consensus around my comment on it

OldSandboxPosts

01:00

Sandbox posts last active a week ago: Battle Chess Royale (Any better name?), Letter Boxed

New Posts

01:11

0

Q: Generate the vertices of a geodesic sphere

As in this challenge, the task is to generate the vertices of a polyhedron. The polyhedron here is the one obtained by dividing a regular icosahedron's triangular faces into smaller triangles so that each edge is divided into \$b\$ segments (denoted \$\{3,5+\}_{b,0}\$ here) and projecting onto th...

Rydwolf Programs

01:55

I feel like 80% of the instructions in this machine code I'm designing for this KotH won't get used for anything

Also I really love how Arm handles conditions/flags (and I love it so much...I'm not actually using it in my own arm-inspired architecture for some reason :p)

Okay why does chat mobile ask you for confirmation to delete something but delete it no matter what

lyxal

02:15

@RydwolfPrograms that's an ios thing

Bbrk mentioned it once

8

Q: The delete button doesn’t wait for confirmation on iOS

On iOS (Safari iOS 16.5), when I vote to delete a question or answer, an alert appears asking if I’m sure. However, the page refreshes out from under the alert, and the vote is recorded — in some cases, deleting the post even when I click “Cancel”. In this image, I deleted the answer, and then l...

bug user-interface vote-to-delete mobile-safari

Oop wait that's a main post related thing

Still, it's been mentioned somewhere before

Bbrk24

04:11

oh so that’s why i randomly got an upvote on that today

hyper-neutrino

04:27

not too important for y'all to know but figured I'd just inform y'all anyway; the coordinated strike is over by vote (meta post) and so I am back meaning you can feel free to ping me for mod stuff if you need me going forward \o/

8

Unrelated String

nice

Rydwolf Programs

05:10

I guess lyxal's fridge is back on DEFCON 2

Simd

06:36

Morning

Dannyu NDos

06:57

It's 15:57 here tho

New Posts

Hey does anyone know how I can send and receive butter from other people on the internet?

mousetail

07:28

@NewPosts Sounds like a startup idea, who will invest? I need one trillion seashells to start but the return will be doubled

Dannyu NDos

She sells sea shells on the sea shore.

Sandbox Posts

08:36

0

A: Sandbox for Proposed Challenges

Verify the Dutch ID number The Dutch citizen ID, the BSN, is made up of 8 or 9 digits. To prevent typos, only a subset of exactly 90 million numbers are valid BSN. A number is verified using the so-called "11-test". If the BSN is 8 digits, add a leading zero to make it 9 digits long. Consider th...

caird coinheringaahin g

11:11

@RydwolfPrograms Hey, I did my best to regularly blow it up :P

lyxal

11:39

@RydwolfPrograms hate to tell you, but you're a tad late. Now that I have powers to nuke my own fridge, I've decided to start my own fridge production company. I produce a fridge, sell it to myself, and then nuke it. Perfect for cleaning millions in stolen limb money!

Ginger

11:53

PSA: For anyone who writes or maintains code on GitHub, the deadline for enabling two-factor authentication is September 21st

7

Bbrk24

12:35

Wait why?

Oh, for people who contribute to GH, not just people who have code there

lyxal

Because they want everyone using 2fa

you don't enable it by then, you won't be able to sign in until you've enabled it

Bbrk24

I misinterpreted the message as "if you don't enable it before <date>, you won't be able to enable it in the future" which is like. Wat.

I've had 2FA enabled for a while, because I used my personal GH for my previous job (they not only allowed but encouraged that), and they required us to have 2FA enabled

Ginger

I'm colorful again :D

lyxal

no, you're Ginger

Ginger

if I had known it'd be that easy to fool you into thinking I changed my name, I would've just used some raw meat on a hook

lyxal

12:40

that doesn't sound very sanitary

at least cook it first

have some decency

Ginger

do you cook your limbs before selling them?

lyxal

people don't eat them

so they don't need cooking

that's like comparing apples to the heat death of the universe

Bbrk24

Back to the GH thing: I have 2FA enabled and I push exclusively using SSH. Should I also enable GPG signing of my commits, or is that not necessary?

Ginger

unfortunately, the hook is over the Name-Change Pit of Doom, so nobody's been able to reach it for cooking

@Bbrk24 I don't think it's necessary, and it adds lots of extra complexity

lyxal

@Ginger but you had to put the meat on the hook at some point

so cook it before putting it on the hook

Ginger

12:42

I tried it once but it completely broke VSCode's git integration

@lyxal yeah, my predecessor did it, and her standards for workplace safety were abysmal

lyxal

@Ginger you said you would have done it though

> I would've just used some raw meat on a hook

so don't use the previous one

get a new system

Ginger

the hook and meat were already there, dingus

lyxal

get a new hook

and cook before you hook

simple

Ginger

I'd say it doesn't matter that much, since you're the first person to have ever fallen for it before

lyxal

it does matter because I demand it be cooked

Ginger

12:45

suppose I were to not cook it just for the evulz

lyxal

that's what would happen :p

Ginger

too late! I've already cooked it! evil_laugh_47.flac

lyxal

I mean, I can take alternative measures too

@Ginger see, that wasn't too hard

now it's cooked meat on a hook

much better

:p

Ginger

okay what the hell

@cairdcoinheringaahing reverse this injustice at once

lyxal

@cairdcoinheringaahing don't and I'll give you half of the money I make from selling fridges :p

Ginger

12:53

it's Monopoly money! because he has a monopoly on the business!

lyxal

can't blame a man for making lemonade from a pile of nuked lemons

you do keep lemons in the fridge, right?

Ginger

who doesn't?

lyxal

just making sure

(man I've missed goofing like this :p)

Ginger

I suspected as much :p

lyxal

thank you :p

(for the goofy)

Ginger

12:57

certainly

I am a top-tier provider of the goofy, of course

lyxal

no

you're Ginger

(ba dum tss)

Ginger

maybe in this iteration, but last time I was in fact named "top-tier provider of the goofy"

that one was weird

lyxal

unrelated, why do other sites get funny 404 images and we don't?

for example

Ginger

14:41

maybe because SU is a Trinity site?

idk

mousetail

Probably because it's old yes, old sites had a lot of custom stuff and newer sites gradually become more standard

@lyxal Petition to make our 404 page a quine in "Lost"

11

Ginger

15:10

YES

zoomlogo

17:01

@Ginger yes can confirm i got an email

did anyone else get email?

mousetail

17:18

Yea same

Ginger

18:00

same, that's why I put it here

mousetail

So I found this code in the python http.server class: github.com/python/cpython/blob/…

If you could control the character encoding you could do some XSS since the charset is not escaped

Very limited utility though

Ginger

18:25

yikes

that's still a vulnerability, regardless of level; I advise you report it

mousetail

18:38

I'm not sure an actual situation exists where you can control the locale environment variable but not just directly change what the server outputs

bigyihsuan

19:26

https://codegolf.stackexchange.com/questions/263827/is-it-a-valid-go-type
pretty sure this is my longest answer on the site rn

let's see if someone can beat it in java or something equally verbose

Bbrk24

I was thinking of maybe doing an answer with Swift regex(en) because you can nest/compose them with RegexBuilder

bigyihsuan

@Bbrk24 sounds fun

Bbrk24

Regex {
  /foo/
  /bar/
}

^that's legal swift given -enable-bare-slash-regex and import RegexBuilder

bigyihsuan

is that /foobar/ or /foo|bar/?

Bbrk24

/foobar/. The latter would be

Regex {
  Choice {
    /foo/
    /bar/
  }
}

bigyihsuan

19:32

ah so auto-concatenating regex litera--- wait what

Bbrk24

Though for simple things like these you don't even need to compose regexen, you can just use string literals "foo" and "bar"

@bigyihsuan Choice uses a different mechanism than everything else

actually it might be ChoiceOf? idr

bigyihsuan

> X uses a different mechanism than everything else

certainly feels that way whenever you're talking swift lol

Bbrk24

@bigyihsuan No, Swift doesn't have "a" "b" -> "ab". This is "a"; "b" (with implicit semicolons) plus a source-level transformation performed by RegexBuilder

give me a moment to desugar it

// Original:
let foobar = Regex {
  /foo/
  /bar/
}

// Desugared:
let foobar = Regex {
  let firstExpr = RegexComponentBuilder.buildExpression(/foo/)
  let firstPartialBlock = RegexComponentBuilder.buildPartialBlock(first: firstExpr)
  let secondExpr = RegexComponentBuilder.buildExpression(/bar/)
  let secondPartialBlock = RegexComponentBuilder.buildPartialBlock(accumulated: firstPartialBlock, next: secondExpr)
  return secondPartialBlock
}

Regex { ... } uses RegexComponentBuilder; ChoiceOf { ... } uses AlternationBuilder.

Result builders are one hell of a macro system if you aren't familiar with them, but they're insanely powerful if you do it right

Further reading: the original resultBuilder proposal, buildPartialBlock

Apple wrote an entire UI framework around this concept and it's amazing

user

20:00

I thought this was really weird when you first talked about it but now I quite like it

Currently dealing with regex and I want to kill myself

Bbrk24

Yeah Swift RegexBuilder is a life-saver if you have to debug anything

Have I mentioned TryCapture?

import RegexBuilder

let rgx = Regex {
  Anchor.wordBoundary
  TryCapture {
    Optionally("-")
    OneOrMore(.digit)
  } transform: {
    Int($0)
  }
  Anchor.wordBoundary
}

let str = "1 20 -3 400 9999999999999999999999999 2147483647"

print(str.matches(of: rgx).map(\.output.1))

Output: [1, 20, -3, 400, 2147483647]

You can do a lot more than string-to-integer conversion inside transform if you wanted

Bbrk24

21:49

What's the shortest built-in alias for Get-ChildItem in PowerShell? I know there's DIR and GCI at least

DLosc

22:11

@Bbrk24 I don't know, but unless ls is an option, I imagine those would be the shortest

Bbrk24

Oh there is ls! Duh

user

22:24

@Bbrk24 Whoa, nice

How does it typecheck that?

Bbrk24

There's about a hundred overloads of RegexComponentBuilder.buildPartialBlock with different numbers of generic type arguments

user

How does it know that .output is an Int, I meant?

Oh

Bbrk24

rgx is Regex<(Substring, Int)>

Transcript for