The Nineteenth Byte

Something is wrong if your regex starts looking like Lisp.

Why are there so many capturing groups?

@ГригорийПерельман lack of interest in not capturing, I suppose

you can at least get rid of the outermost capturing group, yes?

I didn't even count which parentheses match which

According to regex 101, the regex has an error in it

12:05 AM

I think there are 6 nested groups, one of which encompasses all

Actually, no, I just acidentally inserted garbage in the middle.

@MistahFiggins Yeah, plus it's automatically put in capturing group 0 anyway

@DJMcMayhem A number smaller than 4294967296 (2^32)

Why are you trying to match that?

Speaking of regexes, this is how Jelly identifies literals.

12:07 AM

There seems to be 2 characters (non-ASCII) between the 1 and the - in [1-4]

\[*(?:“[^«»‘’”]*[«»‘’”]?|”.|⁾..|(?:(?:(?:0|-?\d*\.\d*|-?\d+|-)?ȷ(?:0|-?\d*\.\d*|-?\d+|-)?|(?:0|-?\d*\.\d*|-?\d+|-))?ı(?:(?:0|-?\d*\.\d*|-?\d+|-)?ȷ(?:0|-?\d*\.\d*|-?\d+|-)?|(?:0|-?\d*\.\d*|-?\d+|-))?|(?:(?:0|-?\d*\.\d*|-?\d+|-)?ȷ(?:0|-?\d*\.\d*|-?\d+|-)?|(?:0|-?\d*\.\d*|-?\d+|-))))(?:(?:\]*,\[*)(?:“[^«»‘’”]*[«»‘’”]?|”.|⁾..|(?:(?:(?:0|-?\d*\.\d*|-?\d+|-)?ȷ(?:0|-?\d*\.\d*|-?\d+|-)?|(?:0|-?\d*\.\d*|-?\d+|-))?ı(?:(?:0|-?\d*\.\d*|-?\d+|-)?ȷ(?:0|-?\d*\.\d*|-?\d+|-)?|(?:0|-?\d*\.\d*|-?\d+|-))?|(?:(?:0|-?\d*\.\d*|-?\d+|-)?ȷ(?:0|-?\d*\.\d*|-?\d+|-)?|(?:0|-?\d*\.\d*|-?\d+|-)))))*\]*

@JanDvorak Its a part of a regex challenge identifying valid IPv4 adresses

... oh.

Oh god, it gets rendered as Latex.

@MistahFiggins Yeah, that's SE's ZWSP's i think

12:08 AM

@ГригорийПерельман It's a javascript regex

@ГригорийПерельман ... Just use a better latex userscript

@ATaco isn't your userscript supposed to not render thing as Latex if it should be rendered as code?

It's not rendered as LaTeX for me.

@Dennis why

@DestructibleLemon Because regex is fast

12:11 AM

I doubt that regex is fast, but it works.

@ATaco I disabled some other userscripts, so the only one's running are yours, and not it renders as code but doesn't syntax-highlight.

(ノ°Д°）ノ︵ ┻━┻

When you make insane programs you are supposed to keep it to yourself

@ATaco Click the history button

Regex is pretty slow compared to normal parser as it backtracks

@DestructibleLemon So we should close PPCG?

9

12:12 AM

Cifrão

The cifrão (Portuguese pronunciation: [siˈfɾɐ̃w̃]) is a currency sign similar to the dollar sign ($) but always written with two vertical lines: . It is the symbol of the Portuguese currency (both historic and modern) and other past Brazilian currencies such as the Brazilian real (sign: R$; ISO: BRL) and is the official sign of the Cape Verdean escudo (ISO 4217: CVE). It was formerly used by the Portuguese escudo (ISO: PTE) before its replacement by the euro and by the Portuguese Timor escudo (ISO: TPE) before its replacement by the Indonesian rupiah and the US dollar. In Portuguese and Cape Verdean...

PPCG programs are not insane

Oh gosh

That's rendered as latex.

Oh no

Yep

@ATaco hahaha

12:13 AM

@Dennis How many different kinds of literalls are there in Jelly?

it's the currency of portugal

I blame the ChatJax Bookmarklet in which this is a port of.

$Latex!$ $Latex Everywhere!$

also: TIL SE oneboxes don't support .svg files

Conor O'Brien

@ASCII-only btw your codepage is borked

12:13 AM

CMC: print the regex @dennis put in chat in fewest bytes as possible

@ConorO'Brien wdym

Conor O'Brien

the table is broken

in fact it's kind of a decent challenge for the main site

edits regex

Conor O'Brien

nvm

I refreshed the page

12:14 AM

no-repro-even-by-op

@DestructibleLemon no it's really not

for practical purposes it's just gibberish I think

Idea: What's the difference between a Dynamic Concept and a Literal?

oh right the whole dupe thing

@ATaco #1 can be modified differently

I just remembered ~99% of KC get closed as dupe of the rickroll challenge

i.e a literal is immutable potentially, vs a mutable Dynamic Concept

@DestructibleLemon yeah, I don't know if dupe but still -1 from me

12:16 AM

@MistahFiggins The outermost capturing group is done to avoid typing multiple anchors (^$), removing it will result in the same amount of charaters

output a regex that matches the same as @Dennis' regex

In RProgN, "123" is just a function which puts "123" on the stack, it can be modified trivially like any other function. Is it a constant, or a function?

@DestructibleLemon prolly not ping him every time btw, in case he's trying to focus on something else

@ATaco define "modified trivially"?

I'll stop now

Can be redefined like any other function/variable.

12:17 AM

@ATaco so could I do x = "123"; x or something like that to push "123"

@ATaco examples?

You could, theoretically, do 123 = 4

Although with different syntax.

@ATaco oh, one of those languages

wait shit @ГригорийПерельман is your powers of two question supposed to be a polyglot

122+1 will still = 123, you're not redefining the integer, just the reference.

12:18 AM

> so that when it is run in any language that has been used before (only C# in this case) the output is still 2^n

No

What

seems to imply that to me ^^^

@ГригорийПерельман should I just remove that then?

Oops, I blame @HelkaHomba

He wrote the original.

lel

@Riker lal that vowel

12:20 AM

@DestructibleLemon chat.stackexchange.com/search?q=lel&room=240

I'm just putting in not so it says 'that has not been used before'.

the innermost group can be unpacked to save a single character:

6([89]|7([3-9]|29[6-9]))

already edited for you, does this work?

6([89]|7[3-9]|729[6-9])

> so that when it is run in the language of the new answer, it prints 2^n (with n being the answer number). For example, the 25th answer (let's say it's in Pyth) would print 2^25, or 33554432.

12:20 AM

Oh, k

becomes

@ГригорийПерельман that work?

Works

cool

Are there any obscure shells we haven't used in it yet?

Oh, Roda! That'll probably work!

12:23 AM

Probably

@ATaco can you do whatever you did to make the app crash now that you are running the latest version? (I can't debug crash logs from an older version for some stupid reason)

Oh wait. There's so many lines I can't comment them all out.

ಠ_ಠ

@Riker You seem to be the main lel'r, while Alex A is the main lal'r

@fergusq does Roda use an ad-hoc parser?

@ГригорийПерельман Wait, it uses /**/ comments. Neat!

@DestructibleLemon is this like a parser joke

12:30 AM

no

# comments would be nice so that shebangs could be used.

@DestructibleLemon also 10/10 avatar, but I cannot see the ;_; :(

I think that I might cycle through a bunch of fruits to have as my username and image...

:-(

Ok, upon further consideration Roda does not work at all.

12:32 AM

Also I found out there is a place called Ascension island.

*Towerfall – Rapture plays*

@Downgoat Done.

@ATaco ok cool, thanks

I like how ascend has two different noun terms for if it is physically ascending or metaphysically ascending

wtf, did someone delete some stuff I posted in the sandbox?