The Nineteenth Byte

Conor O'Brien

04:08

does anyone here know C pretty well?

feersum

I don't know. Maybe there's someone here who knows whether there's anyone who knows C pretty well?

Conor O'Brien

the reason I ask is because I found a really weird C quine:

main(){printf("main(){printf(%c%s%c,34,%c%c+8,34,34,34);}",34,""+8,34,34,34);}

Wheat Wizard

@ConorO'Brien MDXF likes C a lot

Conor O'Brien

@MDXF Say, do you know why ^^ works?

I guess it's because the strings are stored more or less consecutively in memory

whatever it is, I know have the shortest C quine

*now, I always type that wrong

MD XF

04:35

@ConorO'Brien really?? How many bytes?

Wheat Wizard

78

MD XF

Also, I'm on my phone and I can't see the whole code for some reason, can you send a tio link?

78 is not the shortest C quine

Wheat Wizard

Try it online!

MD XF

Huh

Pretty sure that's a memory thing but I'll look closer

Conor O'Brien

@MDXF 70

I updated it

0

A: Golf you a quine for great good!

C (gcc), 78 70 bytes main(){printf("main(){printf(%c%s%c,34,4195728,34);}",34,4195728,34);} I have no idea why this works, 100% honest here. But dang, is it short. Try it online! Old version, 78: main(){printf("main(){printf(%c%s%c,34,%c%c+8,34,34,34);}",34,""+8,34,34,34);} Try it onli...

MD XF

04:43

That's really weird, how did you find it?

(still not the shortest btw, shortest is 60)

Conor O'Brien

on complete accident, actually. I was slicing through a string through STRING + offset when I forgot to check for the end of the string, so offset > strlen(STRING). It then printed my debug printf command from earlier

@MDXF soul crushes slowly

MD XF

Huh

I'm gonna experiment with that tomorrow when I'm not sleep deprived

Conor O'Brien

please do, I'd love to see 60 be broken (also your repo for C quines is out of date, it says 64 is the shortest)

MD XF

Also I golfed yours (see comment)

Oh whoops, I'll go fix that

Conor O'Brien

what is that wizardry

MD XF

04:50

@ConorO'Brien well so is yours in the first place... :P

Conor O'Brien

what does %1$c do? (like what does it mean?) I gather that it's the first arg but wow

MD XF

1$ just means use the first argument after the format specifier

The %c around it means print as character

Conor O'Brien

too bad %0$s doesn't work, that'd be great for a quine

MD XF

Yeah I've spent hours trying to find how to do that

Also your quine could be shorter if you found a shorter way of writing 4195728, like using bitshifts and such

Conor O'Brien

It's 10000000000010110010000 in binary, it looks like it's possible

MD XF

05:02

It's longer in hex unfortunately

feersum

If you're going to hard-code addresses, why don't you go all the way and find a compiler than includes source lines in its debug info.

Then you would do puts(0x12345) and be done.

MD XF

I've tried that

It's very very difficult to access debugging symbols from inside the program

feersum

No, you are not understading.

Not debugging symbols, source text.

MD XF

Well yeah that too. But technically debugging symbols contain the program source

feersum

Wrong.

MD XF

05:07

Then how does gdb print the program source line by line - waittt... it reads the source file doesn't it

I've always suspected that

feersum

Yes, but I think there should be some that store a separate copy of it.

MD XF

There likely are

With enough GCC flags and compiler voodoo I bet it could be done

Conor O'Brien

@MDXF Do you know why I can write '@\x05\x90' but not with those characters literally?

MD XF

@ConorO'Brien what do you mean?

You mean you can't use the actual ASCII 0x05 and 0x90?

Conor O'Brien

Try it online! versus Try it online!

yeah

the ascii 0x90 rather

MD XF

05:16

Might be TIO

Try it locally if you can

Conor O'Brien

Just did, same result

I mean I can use them, it just provides inaccurate results

MD XF

Hmm

Conor O'Brien

'@\220' works and '@\x90' works but not '@'

MD XF

How the heck are you fitting multiple characters into single quotes anyway?!?

Conor O'Brien

it's a gcc specific implementation, it's interpreted as a base 256 number

and I think I figured out why, it's because the source is interpreted as utf-8, which means the sequence is 64 5 194 144 instead of 64 5 144

bingo

MD XF

05:22

Oh good job

Conor O'Brien

now to make TIO accept ansi encoded

MD XF

I think you've shortened the quine :P I wonder if you've beat mine...

Conor O'Brien

I can locally get it down to 62 bytes: main(){printf("main(){printf(%c%s%1$c,34,'@@0');}",34,'@@0');} (the address is different on mine)

MD XF

Dang!

That's really good. Nice job

Conor O'Brien

do you have a windows machine? idk if this is portable beyond my computer

MD XF

05:30

I do, but not rn

Conor O'Brien

ok, cool

MD XF

You can include it in your answer and I'll mess with it tomorrow (probably)

Conor O'Brien

alright, sounds good

MD XF

I'm actually going to sleep now. Good luck with the quine

Conor O'Brien

ok, night

ATaco

05:49

I've implemented a very strange way to make Lambdas in lua.

require("equa")

local eq = #gsub(a, "[a-z]", "%0%0")

print(
	eq("This Is A Cooool Test!")
)

Outputs "Thhiiss Iss A Cooooooooll Teesstt!"

It also implicitly curry's.

require("equa")

local eq = #(x + y)

print(
	eq(1, 2), eq(1)()(2)
)

Outputs 3 3

Dennis

This would look so much better with LaTeX... :/

New Main Posts

07:17

2

Q: The infinite power tower

The challenge Quite simple, given an input x, calculate it's infinite power tower! x^x^x^x^x^x... For you math-lovers out there, this is x's infinite tetration. Keep in mind the following: x^x^x^x^x^x... = x^(x^(x^(x^(x...)))) != (((((x)^x)^x)^x)^x...) Surprised we haven't had a "simple" ...

Titus

07:33

@Dennis this is so great, I just had to port it.

ASCII-only

08:19

@feersum As in NUL etc?

feersum

@ASCII-only Yup

ASCII-only

github.com/python/cpython/tree/master/Python/clinic

> METH

what is this :O

@feersum somewhere here, i'll try to find the specific location

Mr. Xcoder

Have we had a challenge with the sum of the absolute deltas of a list?

[1, 3, 5, 2, -1, 8] -> absolute deltas: [2, 2, 3, 3, 9] -> 19

Jan Dvorak

08:37

I have a similar but harder challenge in mind

Mr. Xcoder

Oh, there are SO elections right now

ASCII-only

@feersum O_o python looks like it's weirdly semi-bootstrapped, apparently it uses the io module, i've looked at the import function and that uses __import__ haha

Mayube

@Mr.Xcoder Braingolf can do it in 3 bytes

as of... 2 minutes ago

Mr. Xcoder

@Mayube Can you give me the code?

(I won't post that challenge)

Mayube

f&+

wont' work in TIO

Also yes, my bash prompt is "bash: "

Mr. Xcoder

08:43

Nice

ASCII-only

@Mayube it's supposed to be What do you want to bash today? (with trailing space)

Mayube

f is documented now

Mr. Xcoder

@Mayube Pyth is double! s.aM.+

Fancy 2-byte built-ins built-ins

Mayube

I mean I cheated by adding f as soon as I saw the idea :P

if Pyth had a 1 byte "absolute deltas of stack" builtin it'd probably get it in 2 bytes

in fact maybe I'll make f just push deltas, not absolute

hmm.. although absing the whole stack is (!s*), which is 5 whole bytes

Mr. Xcoder

@Mayube If Pyth had 1-byte absolute deltas, assuming it's $,It would be like this: s$

Mayube

08:48

what's the dot?

Okx

Neim is 2 bytes buti cannot be bothered to do it as i am on mobile

Mr. Xcoder

@Mayube Nothing, just ends the comment

Mayube

@Okx does 𝐝 get absolute deltas?

Okx

On mobile, cannot see :P

It would be deltas builtin, then abs builtin

Mayube

don't you need sum builtin as well?

Okx

08:50

Oh hes did. Ot see that

Oh hes did not see that

Oh yes did.not see that

Oh yes did not see that

Mayube

You got there

Okx

Only took 5tries

Mayube

Also according to the docs, abs builtin takes an int, not a list

Okx

Only took 5 tries

Neim has automatic vectorisation

Mayube

Additionally, if a token takes a list but instead an int is popped, the int will be exploded into a list and vice versa oh yeah my bad

Mayube

09:02

Hmm

I was gunna post a challenge to output the sum of the absolute deltas of the sourcecode

but I realised most languages would just do 2 bytes

Braingolf, 2 bytes: 00

feersum

I didn't refer to "code archaeology" for nothing.

ASCII-only

@feersum Found it finally, here, here for utf-16

You probably wanted ASCII though

Mayube

We need an OEIS sequence that is the first element from OEIS sequence An

Mr. Xcoder

@Mayube Pyth in 5: .aM.+

Mayube

@Mr.Xcoder Are you sure about that?

Mr. Xcoder

09:09

@Mayube Absolute deltas? Yeah

Mayube

oh well you responded to my "Sum of absolute deltas of sourcecode" response, so I was confused

because it definitely doesn't do that

Mr. Xcoder

Oh, I didn't read it carefully, sorry

Mayube

CMC: in 2 identical bytes in your language of choice, output a single zero

ASCII-only

@feersum For ASCII at least, control chars aren't handled specially

Mr. Xcoder

Pyth can't do that with 00 or ZZ :(

Mayube

09:11

rip

in that case, CMC: In at least 2 bytes of code, output the sum of the absolute deltas of the sourcecode

feersum

@ASCII-only This finding has an unfortunate conflict with reality.

ASCII-only

@Mayube Charcoal, 1 byte: 0 :P

Mayube

oh right yeah forgot "minimum 2 bytes" :P

otherwise there are no deltas

feersum

See the comments to codegolf.stackexchange.com/a/133489/30688.

ASCII-only

@feersum Well depending on the problem it might be handled by the parser/lexer?

@Mayube 00 :P

Mayube

09:13

yep

Polyglot, works in Braingolf too

except works better in Braingolf cos no leading zero

alternatively, 01

feersum

@ASCII-only You can actually see lines that have been pasted together or had parts deleted when parse errors are reported.

So it seems to be at the level of decoding and reading a line from the file.

Mr. Xcoder

@Mayube Non-identical bytes: eT

Non-identical bytes: yZ

Non-indetical bytes: lY

Non-identical bytes: lH

And there are lots of them...

ASCII-only

@feersum how exactly does that work

feersum

I don't know, that's why we are doing archaeology.

ASCII-only

Doesn't seem to be a tokenizer problem

ASCII-only

09:50

@feersum nvm, getpreferredencoding() says utf-8

Destructible Lemon

10:01

hi

feersum

The default encoding is ASCII. You can't use code points above 127 without declaring an encoding.

Cows quack

10:27

@TheLethalCoder Tbh, I'm not sure how exactly ¹^*1 would be counted in Carrot

Mr. Xcoder

10:40

Can anyone explain how .t works in Pyth?

TheLethalCoder

@Cowsquack I don't know what encoding do you use for it?

Cows quack

it only uses ASCII characters, I didn't specify any specific encoding

by the way, do you want to see the output from the parser for a test program?

TheLethalCoder

Yeah sure

Cows quack

the program:

asd
sad sad
^+"multi
line"5-5-3-9- "a"/'/reg[']ex/flag'5^^^multi
line^K{"arrays"{'/are/'5}"C"0 0}+$-5.5*#^hi#asd$3.4$^/'/regex/flags'S"cool"v^v+(hey$1^+"5")-5
^#spooky(#^F+($^-2-2))me^t'//'[-1s^5^f]

Mayube

Mayube's back at it again, making a new language

Cows quack

10:49

the AST:

PROGRAM
├─CARET: ^
│ └─LITERAL: (CARET_DATA) asd
sad sad

├─NORMAL
│ ├─FUNCTION_CALL: +
│ │ ├─LITERAL: (STRING) "multi
line"
│ │ ├─LITERAL: (FLOAT) 5
│ │ ├─LITERAL: (FLOAT) -5
│ │ ├─LITERAL: (FLOAT) -3
│ │ └─LITERAL: (FLOAT) -9
│ ├─FUNCTION_CALL: -
│ │ └─LITERAL: (STRING) "a"
│ └─FUNCTION_CALL: /
│   ├─LITERAL: (REGEX) '/reg[']ex/flag'
│   └─LITERAL: (FLOAT) 5
├─CARET: ^
├─NORMAL
├─CARET: ^
│ └─LITERAL: (CARET_DATA) multi
line
├─NORMAL
│ ├─FUNCTION_CALL: K
│ │ └─ARRAY
│ │   ├─LITERAL: (STRING) "arrays"

(I just realised I forgot to add LOOPs to the parser)

TheLethalCoder

So have you gone with one command multiple arguments then? It's looking good though I can't read it that well :P What is K?

Cows quack

that's just a command

well the output looks prettier on my terminal :P

TheLethalCoder

It looks fine I just meant the code because it's used to test everything haha!

Cows quack

the code's not meant to do anything useful (and I haven't started with the interpreter yet), it's just to test the limits of the parser :P

TheLethalCoder

Oh I know

It's looking good

Mayube

11:05

So.. new language, should I write it in js or python?

Mr. Xcoder

Python

Mayube

Why?

Mr. Xcoder

@Mayube Because I like Python. You should choose the one you feel more comfortable with.

trichoplax

11:20

@Mayube Is it for you or do you have a target audience?

Adám

@Mayube APL: 00

Mayube

@Adám I know you were responding to my CMC, but maybe I should make it in APL

@trichoplax mostly for me

trichoplax

@Mayube Whatever you'd like to fix bugs in then...

Mayube

I'm a little bored of making languages in python tbh

and I'm supposedly working on porting braingolf over to js

so maybe I'll make it in js

Right now I'm writing up an actual language spec before I actually start working on anything, which is a first for me

trichoplax

Nim looks like python but optionally compiles to JS, if that's of interest. Also compiles to C and then runs at C speed

Mr. Xcoder

11:27

@Mayube That's what I do with Cthulhu too

Adám

@Mayube APL does come with some neat tools for creating languages. I'll be happy to assist. Which kind of features are you envisioning?

Mayube

@Adám it's a sort of joke language that's designed to be very verbose

totallyhuman

Starting making languages in a language you've never used before?

Doesn't sound incredibly fun

Adám

@Mayube Well, here are some resources to get you started: BF, Joy, Lisp, infix.

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Invisible Ink, Easy code-golf In the physical world, invisible ink usually becomes invisible when it dries, and is then is readable if it is exposed to heat or chemicals of some kind. The invisible ink in this challenge will be readable when exposed to highlighting. Create a full program or fun...

0

A: Sandbox for Proposed Challenges

Invisible Ink, Hard code-golf In the physical world, invisible ink usually becomes invisible when it dries, and is then is readable if it is exposed to heat or chemicals of some kind. The invisible ink in this challenge will be readable when exposed to highlighting. Create a full program or fun...

Mayube

11:33

This is my general plan for the language

Adám

@NewSandboxedPosts Are you feeling alright?

@Mayube Heh, almost all of that could be added to APL just by making a few definitions.

@Mayube What is the difference between is and is equal to?

Mr. Xcoder

@Adám Probably type checking / identity checking. Type checking: "abc" is String, comparison:is equal to would compare two values or identity checking: "abc" is variable_1

totallyhuman

Memory address comparison I think

programmer5000

stackexchange.com/questions?tab=hot

My 2 CnR threads have been there for 19 hours

Mr. Xcoder

@programmer5000 PPCG always lies on top of that list

programmer5000

11:46

Yep. We get the HNQs, Code Review gets the design :(

3

Mr. Xcoder

@programmer5000 We will get a design too on November 1st, IIRC

programmer5000

Really? Where did SE say that?

dzaima

SOGL y u have ["a"] == ["b"] -_-

Cows quack

because JS?

wait that is false in JS

dzaima

my = code doesn't check for arrays and just returns true ..

Adám

11:51

APL has ≡ (identical to) and = (equals)

dzaima

@Adám the problem is that any array equals to any array

totallyhuman

o0

programmer5000

@Adám Like js's === and ==?

CMC: Vote on or comment on everything on the first page of the sandbox. We need more feedback on our sandbox!

Adám

@programmer5000 Don't know enough JS. ≡ looks if two things are completely identical in all aspects, = does recursive element by element comparison.

programmer5000

Oh. === is strict equality (actually equal), and == is weird equality

In JS, [] === [] is false. Arrays never equal arrays, and objects never equal objects.

Adám

11:59

@programmer5000 But in APL, two identical arrays are identical. Two refs, otoh, are never identical/equal (objects are scalar) except if they actually ref the same object.

Jan Dvorak

arrays and objects still equal themselves, though

var a = 0; a===a // true

dzaima

@Adám I'm making a language and one of my goals for it is to have == work for arbitrary user-created objects (with the ability for the objects to define their ==) and === being reference equal

Jan Dvorak

Look at Ruby

== is user-defined equality (defaults to eql?), eql? is object identity and barely ever used. === is "matches" (membership or equality depending on context)

totallyhuman

Quick somebody gimme a good Unicode character for fetch

Adám

@totallyhuman fetch in what sense?

totallyhuman

12:06

Fetch a webpage

Jan Dvorak

⬇

⏬

Destructible Lemon

this is not sandbox

Adám

@totallyhuman ⍗ ⍌

Destructible Lemon

oh wait they are in context

xd

Jan Dvorak

📃

📥

totallyhuman

12:09

@Adám is everything in apl inside a box

Jan Dvorak

emojipedia.org/objects has more, but I don't want to flood the chat

Destructible Lemon

is there a dog emoji?

use that

totallyhuman

:P

dzaima

@DestructibleLemon I wanted to suggest a bone emoji :p

Jan Dvorak

🐶

🐕

totallyhuman

12:11

I'm not making emojicode ><

Adám

@totallyhuman No, only six of Dyalog's glyphs are: ⎕ ⍞ ⌹ ⍠ ⌸ ⌺

Jan Dvorak

well, emoji is unicode.

dzaima

@JanDvorak well this is false and that's what I want to be true

totallyhuman

⇓

Jan Dvorak

@dzaima You can use struct: repl.it/JhVU/2

dzaima

12:14

yay I do have docs for array elementwise equal :D

Jan Dvorak

@dzaima You can define your own ==, too repl.it/JhVU/4

Example where Tclass only equals other Tclass: repl.it/JhVU/5

dzaima

@JanDvorak That much I found (I don't know ruby :p), but that's 3 wasted lines.

Jan Dvorak

Is Struct an option?

You can write it as one line, too, with semicolons

def ==(other); other.is_a? Tclass; end

dzaima

well even if rubys structs do what I want I'm still making that language as it has a few other cool quirks too (for example this I want to be true)

Jan Dvorak

Then there is OpenStruct, which is like Struct but you can add extra properties on the fly.

You could have == return self, which is still truthy. It's kind of a hack, though

I wasn't suggesting you to drop your language, though - just to use Ruby for inspiration.

Adám

12:25

@Mayube Done!

totallyhuman

Wat

Why aren't you making more languages?!

Adám

@totallyhuman Who?

Mayube

@Adám impressive!

totallyhuman

@Adám you, in apl

That's nuts

Adám

@Mayube Now you just need to run source through some text-replace to fix up the syntax and replace some spaces with underscores, and you're done.

Mayube

12:30

is ≡ to = what === is to == in other languages?

Adám

@totallyhuman No need to create any other languages; I have APL!

@Mayube ≡ does a complete compare in all respects, yielding a scalar Boolean. = compares element by element and returns a Boolean superset structure of the structures of its arguments. TryAPL!

Mayube

also what's ⍝? Seems to be used quite often

Adám

@Mayube Comment :-)

Mayube

ooh ok

so like half of that APL code is comments :O

Fatalize

@Adám Is there any reason why ⍝ looks like how it looks?

Adám

12:35

@Mayube Right. I just took your specs, modified what I needed, and commented out the rest.

@Fatalize Yes, it is a lamp (or bulb filament?) to enlighten you.

Fatalize

From my experience of developping, comments usually endarken me…

Mayube

haha that's awesome

Adám

APL was first used to describe a system (IBM System/360), which it is indeed very good at doing.

… Kind of interesting when you think about it from an incompleteness perspective. APL\360 fully described IBM/360. APL\360 ran on IBM/360!

feersum

Lies, damned lies, and comments.

Titus

@dzaima I think PHP has that ... at least two equal arrays with the same values are ==

Adám

12:40

@Mayube So, what do you say? Do you want to make it in APL?

Mayube

Perhaps

so is ⎕IO←0 basically saying take input and run it as APL code?

Adám

@Mayube I'd need to rewrite create_function. It was just a quick'n'dirty job.

Mayube

and then most of the declarations look like they're basically just defining aliases

Adám

@Mayube No, no, it specifies 0-based indexing.

Mayube

oh okay, so the input is implicitly taken and run as code?

Adám

12:43

@Mayube That is indeed the case.

@Mayube Yup.

Mayube

huh, interesting

Adám

@Mayube The only exception is the ⎕FX which formally fixes a function definition. We'd have to rewrite create_function like that too, to enable control structures.

Mayube

I feel like it would be exceptionally awkward to write APL with a conventional keyboard, though

Adám

@Mayube Firstly, you could use an APL keyboard. Secondly, the RIDE interface allows you to use a prefix key, e.g. ` to enter APL chars, thirdly, APL interfaces come with a click-to-type language bar, and fourthly, you'd barely have to once you copy my code :-)

Mayube

I could use an APL keyboard, but I don't own one

Dennis

12:47

@Titus :)

Adám

@Mayube No, I mean an APL keyboard layout. Physical APL keyboards can be bought too, but I can teach you the entire APL layout in an hour.

New Meta Posts

0

Q: Stop converting duplicate answers to comments

In case you didn't know, whenever you post the exact same answer as was already posted, it gets converted to a comment. I had no idea before I posted a crack on a cops-and-robbers that someone had posted 5s before. I didn't know what happened before someone asked me why I commented on the quest...

feature-request comments

Adám

in APL, Jan 24 at 22:30, by Adám

@ATaco Fonts and keyboards

in APL, 14 secs ago, by Adám

IBM Model M Keyboard APL key caps

Mayube

Hmm, You said before that APL can compile to a binary executable, right? I'd prefer people don't have to setup APL to run the interpreter in the event that others want to use the language

totallyhuman

Microsoft deprecated Ms paint :c

Mayube

12:56

@totallyhuman and Outlook Express

and Screensavers

Adám

@Mayube Correct.

mınxomaτ

Neat, Windows Task Manager now also shows GPU usage.

dzaima

@mınxomaτ what where

mınxomaτ

TheLethalCoder

13:24

Anyone good with regexes here?

Cows quack

ish

TheLethalCoder

Okay I'm trying to use a regex to get all the code outside of a string. I've managed to get all the contents of the string but I want the reverse.

totallyhuman

example?

TheLethalCoder

This is what I have: regexstorm.net/tester?p=%28%3f%3c!%28%3f%3c!%5c%5c%29%22%29.*%28%3f!%28%3‌f%3c!%5c%5c%29%22%29&i=code%0d%0a%22string%22%0d%0a%5c%22escaped+string%5c%22%0d%‌0a%40%22multiline%0d%0astring%22%0d%0acode+with+%22string%22%0d%0acode+with+%5c%2‌2escaped%5c%22%0d%0a%22string+with+%5c%22+escaped+%5c%22%22%0d%0a%24%22interpolat‌ed+string+%7bcode%7d%22&o=m

The links messed up...

totallyhuman

...monospace the link

TheLethalCoder

13:26

regexstorm.net/tester?p=%28%3f%3c!%28%3f%3c!%5c%5c%29%22%29.*%28%3f!%28%3‌f%3c!%5c%5c%29%22%29&i=code%0d%0a%22string%22%0d%0a%5c%22escaped+string%5c%22%0d%‌0a%40%22multiline%0d%0astring%22&o=m

totallyhuman

put it in ``

TheLethalCoder

I thought I had -_-

http://regexstorm.net/tester?p=%28%3f%3c!%28%3f%3c!%5c%5c%29%22%29.*%28%3f!%28%‌3f%3c!%5c%5c%29%22%29&i=code%0d%0a%22string%22%0d%0a%5c%22escaped+string%5c%22%0d‌%0a%40%22multiline%0d%0astring%22%0d%0acode+with+%22string%22%0d%0acode+with+%5c%‌22escaped%5c%22%0d%0a%22string+with+%5c%22+escaped+%5c%22%22&o=m

lol

That's matching everything can't seem to work it out yet

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4

Q: Primitive Pythagorean Triples

(related) A Pythagorean Triple is a list (a, b, c) that satisfies the equation a2 + b2 = c2. A Primitive Pythagorean Triple (PPT) is one where a, b, and c are all coprime (i.e., the only common divisor between the three elements is 1). For example, the (3, 4, 5) right triangle is a famous Primi...

code-golf arithmetic number-theory

Business Cat

I see we're back to partitions

Cows quack

@TheLethalCoder btw there appears to be an unprintable after the %

totallyhuman

13:30

admborkbork is on a question streak

TheLethalCoder

@Cowsquack Who'd have thought links would be such a pain in the arse

totallyhuman

hey anybody know if there's a single character that's just {}

Cows quack

oh, that's the borked up link, I take it that it is supposed to be a ?

TheLethalCoder

This is my pattern `(?<!(?<!\\)").*(?!(?<!\\)")`
With the test cases
code
"string"
\"escaped string\"
@"multiline
string"
code with "string"
code with \"escaped\"
"string with \" escaped \""

totallyhuman

try regex101.com

TheLethalCoder

13:32

Which ones most similar to .NET flavour?

Business Cat

PCRE has the most features of the ones they have I think

Cows quack

also you don't seem to be using any .NET specific features in the regex

so yeah, ^^ PCRE should work

TheLethalCoder

I was just asking in case, I'm not the best with regexes :)

regex101.com/r/ah9GIw/1

Dennis

@TheLethalCoder goo.gl/XzWo8i

TheLethalCoder

@Dennis Thanks :) Still borked I think but the regex101 one is fine.

Dennis

13:36

Well, you have the original link. :P

Pesky chat inserting zero-width whitespace...

Cows quack

the regex101 link is still matching everything...

TheLethalCoder

I know... I don't think the SE folks looked at the main meta post about the zero wisth chars problem

I meant the link was working

totallyhuman

it seems there's no single character that looks like {} ;-;

i wanted it to represent to JSON

TheLethalCoder

How about stretching an 0: <-0-> :P

totallyhuman

that's not a single character :P

Adám

13:41

@totallyhuman Is something that looks like [] an acceptable alternative?

Step Hen

@totallyhuman shapecatcher.com/unicode/info/455

kinda close

dzaima

@totallyhuman ⦃⦄

Adám

@dzaima Still two chars.

@totallyhuman ⍬

dzaima

oh

totallyhuman

@Adám mm best alternative i guess

Adám

13:46

@totallyhuman APL uses ⌷ as a single symbol to denote (an alternative to) bracket indexing []. In fact, if you are in overwrite mode and go back to a [ and type ] you get a ⌷.

totallyhuman

@StepHen that's just a letter :P

Adám

@totallyhuman JSON uses {name:value} and [value,value]. Put the colon from the objects into the brackets of the arrays [:], then close the horizontal gaps to form a whole character: ⍠

Cows quack

@TheLethalCoder I suggest turning on single-line mode for . to match newlines as well

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