The Nineteenth Byte

Releasing Helium Nuclei

12:00 AM

5 min ago, everyone was talking. Now, only me iz talking

quartata

What?

Releasing Helium Nuclei

Autocorrect don't mind

Dennis

@RohanJhunjhunwala github.com/DennisMitchell/tryitonline/blob/master/bin/brachylog

Eᴀsᴛᴇʀʟʏ Iʀᴋ

@Downgoat he's vtc

Rohan Jhunjhunwala

@Dennis lol ok thanks for clearing that up :D

quartata

12:03 AM

> no period at the end of the query

mildly annoyed

Actually, I didn't even know it was optional...

Rohan Jhunjhunwala

@Dennis did you by chance get around to starting to work on a S.I.L.O.S try it online?

Releasing Helium Nuclei

i wish SE app had chat

Rohan Jhunjhunwala

I'm sorry I know your incredibly busy @Dennis

Dennis

@RohanJhunjhunwala I did, but I got stuck somewhere. I pinged you in chat a while ago, but you didn't reply.

Rohan Jhunjhunwala

Oh my bad @Dennis what was the bug?

How do I search for old pings?

Dennis

12:05 AM

Wasn't a bug

Rohan Jhunjhunwala

ok, How can I help?

Sorry I missed the ping.

Dennis

Let me find the message. I don't recall what it was.

Releasing Helium Nuclei

http://chat.stackexchange.com/search?q=RohanJhunjhunwala&user=Dennis&room=240

Rohan Jhunjhunwala

:( I click on the little bubble with a (1) but sometimes it doesn't take me to it.

Dennis

Aug 10 at 22:06, by Dennis

@RohanJhunjhunwala Could you explain how to compile S.I.L.O.S.? I don't know a lot about Java...

Releasing Helium Nuclei

12:06 AM

Yay i got outspoken

Rohan Jhunjhunwala

oh ok

so take a look at the revision history of this answer to see a trivial transpilation

1

A: Output "Fit" numbers

Reference Implementation in S.I.L.O.S "only" 417 bytes Golfed readIO : i + 1 I = i z = 1 n = 32 b = n z = 1 n = b lbla n - 1 GOSUB p j = i j - p if j b if z c z = 1 GOTO e lblc b - 1 if n a GOTO f lblb z = 0 A = a A + 1000 set A 1 i - p lble a + 1 if n a lblf q = 1000 e = q e + b i = 0 lbl> d...

(warning please do not take the above as self promotion)

DJMcMayhem

Don't worry bout it. Lots of people self promote in here

Rohan Jhunjhunwala

Essentially @Dennis if you look at the last revision of the question I "compile" a program into java by providing the vebatim interpreter, except instead of opening the code from a file I hard code the "program" into an array.

Leaky Nun

23

Q: "To death" vs "to the death"

Sometimes I see the former, as in "starve to death". But sometimes I see the latter as well, as in "fight to the death", or in the following quote: I disapprove of what you say, but I will defend to the death your right to say it. – Evelyn Beatrice Hall When do I use which?

<self-promotion />

Downgoat

@EᴀsᴛᴇʀʟʏIʀᴋ :/ i liked VTC better >_>

Releasing Helium Nuclei

12:11 AM

@LeakyNun i would upvote if i could

Rohan Jhunjhunwala

@DJMcMayhem last time someone asked about the permissibility of using quine built ins so I pointed him to a challenge I had where you had to add a quine built in to a language which didn't really contain it, and then I got downvoted (probably because someone was offended by the self promotion) (or the broken window effect)

Eᴀsᴛᴇʀʟʏ Iʀᴋ

@Downgoat same

Downgoat

@RohanJhunjhunwala almost done (meaning almost ready for 1.0.0 release)

Releasing Helium Nuclei

good night see you about 10 hours later

Downgoat

@AlexA. :D :D :D I tried to do that but idk how get from git

Rohan Jhunjhunwala

12:18 AM

@Downgoat are you talking about cheddar? (If so, good!) (sorry I haven't gotten a chance for the memes package (if I;m slowing you down don't wait for me keep the cheese train pugging)

Dennis

@RohanJhunjhunwala Oh, so I have to create Java source code, compile and run it?

Rohan Jhunjhunwala

@Dennis that is one option :( although I would recommend compiling it into C or something trivially

Downgoat

@AlexA. yeah. The cheddar executable is just a node file which wraps the CLI. You're gonna need to keep package.json, local_modules, and dist. You can delete the folders you don't need with bin/cleanup. Way cheddar installer does is it installs entire cheddar stuff in some directory stuffed away and /usr/local/bin/cheddar is actually a symlink to the actual executable

Rohan Jhunjhunwala

essentially it can be transpiled to C quite simply

Leaky Nun

1

A: Sandbox for Proposed Challenges

Do X without Y again! Here is an X done with Y: YyYy YyYy YyYy YyYy YyYy YyYy YyYy YyYy YyYyYyYy YyYyYy yYyYyY yYyYyYyY yYyY yYyY yYyY yYyY yYyY yYyY yYyY yYyY As you can see, there are 92 Y/ys in thi...

how's this challenge?

Downgoat

12:20 AM

IIRC make build creates a ./cheddar executable in the root of cheddar

Rohan Jhunjhunwala

int void main(char* args){
int a,b,etc....
//Declare a stack
//replace assignment operators properly etc...

}

Releasing Helium Nuclei

@RohanJhunjhunwala bestest c code, ever™

System.out.printf("string");

Downgoat

> USB 3.0 hub

> Disk Speed: 20 MB/S

@satechi ;_; y u do dis

Dennis

@RohanJhunjhunwala I'm not following. I thought you had an interpreter on GitHub.

Rohan Jhunjhunwala

yes

ok

@Dennis yes the interpreter works as well

Dennis

12:23 AM

But how? How do I compile? How do I invoke?

Rohan Jhunjhunwala

@Dennis the interpreter prints out "FileName?\n" and then expects a local filename on stdin

and then the code runs

(If the code requires input it will prompt for input at each occurence of the command)

there is no real "compiled" form it just gets interpreted line by line (control flow modified by GOTOS GOSUBS and conditionals) until it reaches the end

<self promotion>
https://github.com/rjhunjhunwala/S.I.L.O.S
</self promotion>
@Dennis So on that repository the SILOS.java file is the run you run, it will prompt you for a filename for SILOS source to execute and will run it.

Dennis

@RohanJhunjhunwala Not sure how well that will work on TIO. All the prompts will look a bit wird when run non-interactively.

For starters, wouldn't it be easier to read the filename from args?

Rohan Jhunjhunwala

@Dennis ok, Essentially I can modify the Scanner.nextLine() call, and the filename reading to be both read from args

so like the filename is the first argument

and then each instance of readIO command being called it will consume the next CLA (returning zero if nothing is left)

Dennis

User input from STDIN in fine. I just shouldn't print a prompt on TIO.

Rohan Jhunjhunwala

Ok, you can do that

Modifying it to take in a filename as a CLA is a quick fix

just replace the getStringFromUser("FileName:") with args[0] I can do it if you'd like

Dennis

12:34 AM

That would be better. I don't know Java and I try not to modify the interpreters, since changes would have to be merged if it gets updated on your end. If you want to keep prompts for normal invocation, you could add a command-line switchg (--noprompt, -n or something like that) do disable prompts.

Rohan Jhunjhunwala

@Dennis so I just have to modify the current S.I.L.O.S interpreter to accept a filename as args, as well as silence prompts if necessary, and I'll ping you when I'm done. "Should be a quick fix"(tm)

Dennis

OK

Rohan Jhunjhunwala

But just out of curiosity, what is error does a prompt being printed to stdout cause? @Dennis is it just formatting of these prompts? They're non graphical newline terminated outputs.

Nathan Merrill

@Dennis feature-request organize language list based on popularity

3

DJMcMayhem

Popularity == number of runs?

Nathan Merrill

12:42 AM

yeah

@RohanJhunjhunwala the issue is that he passes input once, then reads once. If there are prompts, that messes up the entire flow (either passing input won't work, or the prompt will make it into the output)

Rohan Jhunjhunwala

ok

Downgoat

@NathanMerrill ;_; cheddar will be at bottom

DJMcMayhem

That would be really cool. Or like a stats page

Rohan Jhunjhunwala

@NathanMerrill thanks for clarifying.

Downgoat

> int void main

:P that's java you're thinking

Rohan Jhunjhunwala

12:44 AM

@Downgoat cheddar would certainly beat S.I.L.O.S

DJMcMayhem

I bet jelly matl and osabie would be at/near the top

Rohan Jhunjhunwala

@Downgoat that's not even valid java

:(

Idk what I was thinking

Downgoat

:|

Rohan Jhunjhunwala

:(

Downgoat

@DJMcMayhem s/osabie/osable/

DJMcMayhem

12:45 AM

I wonder where V would be

quartata

@DJMcMayhem Actually CJam would be at the top.

Followed by Pyth and then Jelly.

Rohan Jhunjhunwala

@Dennis (sorry for the nth ping) but The patch has been uploaded. The interpreter now has two modes. If it is invoked with one or more arguments, it will interpret the source code stored in the filename expressed in args[0] and refuse to display any prompts, (but it will still read stdin), otherwise it will display prompts and request a filename from stdin.

(untested: dragons may come out of the floorboards when running it from the command line, but it works without args inputted just fine)

Leaky Nun

CMC: increasing sequence starting at a(1)=1 satisfying sum[k from 1 to n] a(k) is divisible by n, and each term is as small as possible

Downgoat

@trichoplax you can keep denying it but that doesn't make it true :P

Rohan Jhunjhunwala

denying what?

Downgoat

12:57 AM

Aug 14 at 18:17, by trichoplax

@Downgoat No problem :) I'm not actually a turtle (and even my avatar isn't a real turtle...).

trichoplax is claiming he is not a turtle

but he is a turtle clearly

Rohan Jhunjhunwala

lol

Downgoat

Rohan Jhunjhunwala

I need a more intersting nickname and avatar

Downgoat

ohhhh he must be a tortoise

Rohan Jhunjhunwala

lol

same difference

Downgoat

12:58 AM

^

Leaky Nun

oops, that's just the odd number sequence

Rohan Jhunjhunwala

really @LeakyNun

Leaky Nun

CMC: positive integer sequence starting from 1 such that sum[k from 1 to n] a(k) is divisible by n, the sequence contains no duplicate, and each term is as small as possible

(this is not the same as what I said 10 minutes ago)

First 21 terms: [1,3,2,6,8,4,11,5,14,16,7,19,21,9,24,10,27,29,12,32,13]

And of course it is in OEIS

oeis.org/A019444

First 100 terms:

[1,3,2,6,8,4,11,5,14,16,7,19,21,9,24,10,27,29,12,32,13,35,37,15,40,42,17,45,18,‌48,50,20,53,55,22,58,23,61,63,25,66,26,69,71,28,74,76,30,79,31,82,84,33,87,34,90,‌92,36,95,97,38,100,39,103,105,41,108,110,43,113,44,116,118,46,121,47,124,126,49,1‌29,131,51,134,52,137,139,54,142,144,56,147,57,150,152,59,155,60,158,160,62]

Dennis

1:16 AM

@RohanJhunjhunwala I seem to be missing something.

Rohan Jhunjhunwala

@Dennis it is likely my fault

Dennis

$ javac Silos.java
$ java Silos
Error: Could not find or load main class Silos

Leaky Nun

@RohanJhunjhunwala I think you meant args[1]

Rohan Jhunjhunwala

Where @LeakyNun?

Leaky Nun

because args[0] is the filename right

Rohan Jhunjhunwala

1:17 AM

@Dennis be sure to put in the right package

@LeakyNun sadly no

Java is not a sane language

Dennis

@RohanJhunjhunwala I don't know what that means.

I don't even know what a package is.

Leaky Nun

@Dennis try java Silos.java?

Rohan Jhunjhunwala

@Dennis so creating a Jar in java is a general nuisance (one I don't really understand as my ide does it for me) I can upload a jar which can be easily invoked as follows
java -jar "Silos.jar"

Bald Bantha

wait i just got that. @ReleasingHeliumNuclei, are you a @βετѧΛєҫαγ sock? Because your name is the definition of alpha decay, and i smell a corelation

Dennis

@RohanJhunjhunwala I seem to need a manifest file for that.

Rohan Jhunjhunwala

1:22 AM

@Dennis Let me provide a stand alone executable jar, is that easier?

New Main Posts

1

Q: Compute the polyomino capacity of a rectangle

Write a program or function that takes as input three positive integers x, y, and a and returns or outputs the maximum number of whole a✕1 polyominos that can be packed into an x✕y rectangle. Although the result will always be an integer, the program need not give the result using an integer typ...

code-golf math number packing

Dennis

@RohanJhunjhunwala It works if I remove the package rohan line.

Rohan Jhunjhunwala

yeah, so thats what I was trying to explain, my IDE depended on it being in that folder, but since the GitHub repo is improperly structured, allow me to remove that line if it makes it work @Dennis

Nathan Merrill

please package your projects

you're going to run into issues if you don't

Dennis

@RohanJhunjhunwala Do I need file.java or AutogenerateQuine.java for something?

Rohan Jhunjhunwala

1:31 AM

@NathanMerrill I will from now on, let me figure out this classpath stuff

@Dennis no Silos.java is standalone

Nathan Merrill

the standard structure is "RootFolder/src/main/java/com/package/name"

Helka Homba

What apples would you rather have? strawpoll.me/11017266

Rohan Jhunjhunwala

@Dennis Silos.java can be compiled into one .class file or compiled into a jar on its own

@NathanMerrill I currently use git only through their website :( I need to learn command line level sharing of a folder

Nathan Merrill

do you use an IDE to develop?

Helka Homba

@AlexA. our sole native mac user ^^^^

New Main Posts

1:34 AM

0

Q: Smallest positive integer not yet appeared so that the sum of the first n elements is divisible by n

Task Given positive integer n, output a(n) where a is the sequence defined below: a(n) is the smallest positive integer not yet appeared so that the sum of the first n elements in the sequence is divisible by n. Example a(1) is 1 because it is the smallest positive integer that has not appea...

code-golf sequence integer

Downgoat

> $1000 uSD worth of free Apple products per year

lol like there's a apple product for only $1000

Which animal would you rather have as a pet

Rohan Jhunjhunwala

@NathanMerrill I exlusively use netbeans

too lazy to understand anything else

Nathan Merrill

I don't know netbeans, but Eclipse and IntelliJ both have Git integrations

so you don't have to use github's website

Dennis

@RohanJhunjhunwala silos.tryitonline.net/…

Rohan Jhunjhunwala

yeah there is a git integration, @Nathan Merril was a little confusing, but I will try to look into it

thanks! @Dennis

El'endia Starman

1:47 AM

3

A: Sandbox for Proposed Challenges

Solve a Solitaire Chess Puzzle code-golf Recently, I was introduced to a puzzle game known as Solitaire Chess. I'll summarize the rules here: The board is a 4x4 checkerboard. All pieces are the same color (no teams) and all pieces can capture any other piece. Every move must be a capture. No ...

^ Any final feedback?

Rohan Jhunjhunwala

Google accuses the sandbox of being infected

Nathan Merrill

@El'endiaStarman I went to play that on my phone, and the app is terrible

El'endia Starman

@NathanMerrill That sucks. I considered trying to make a Stack snippet to put in the post, but I have other things that really should take priority... :P

Nathan Merrill

lol yeah

Rohan Jhunjhunwala

@Dennis input is broken :(

Nathan Merrill

1:56 AM

@El'endiaStarman any progress on Pytek?

Dennis

How?

Rohan Jhunjhunwala

silos.tryitonline.net/…

El'endia Starman

@NathanMerrill Not recently, no. :(

Nathan Merrill

what's keeping you busy?

Leaky Nun

Can anyone explain to me what this is? oeis.org/A034691

Eᴀsᴛᴇʀʟʏ Iʀᴋ

2:00 AM

the number of different hierarchical orderings that can be formed from n unlabeled elements: these are divided into groups and the elements in each group are then arranged in an "unlabeled preferential arrangement" or "composition"

Dennis

@RohanJhunjhunwala You put it in Arguments, not Input.

Leaky Nun

@EᴀsᴛᴇʀʟʏIʀᴋ I can read

but I understand not

Eᴀsᴛᴇʀʟʏ Iʀᴋ

same

Leaky Nun

what is Euler transformation?

Eᴀsᴛᴇʀʟʏ Iʀᴋ

:P

@LeakyNun maybe this?

does that fit the sequence?

Leaky Nun

2:02 AM

@EᴀsᴛᴇʀʟʏIʀᴋ no?

the sequence doesn't even contain negative numbers

Eᴀsᴛᴇʀʟʏ Iʀᴋ

thats only part of the first sequence

Leaky Nun

?

Rohan Jhunjhunwala

2:13 AM

@Dennis whoops my bad :( what is the intended use of the argument spot?

(So I know for the future)

Dennis

Command-line arguments.

Rohan Jhunjhunwala

oh

my bad :(

ΛεγίωνΜάμμαλϠΨΠʹ

@LeakyNun thx

Leaky Nun

@ΛεγίωνΜάμμαλϠΨΠʹ why not?

ΛεγίωνΜάμμαλϠΨΠʹ

(n, x integer)

Leaky Nun

2:15 AM

are a,b integers?

ΛεγίωνΜάμμαλϠΨΠʹ

@LeakyNun yes.

Leaky Nun

a^(1/6)b^(1/3) = (ab^2)^(1/6)

so x=ab^2 and n=6

ΛεγίωνΜάμμαλϠΨΠʹ

@LeakyNun whoops, thx

I broke causality by accident :|

Leaky Nun

lol

Conor O'Brien

λ type test.rb
insert = 5
def test
    puts insert
end

test

λ ruby test.rb
test.rb:3:in `test': undefined local variable or method `insert' for main:Object (NameError)
Did you mean?  inspect
        from test.rb:6:in `<main>'

wtf ruby

Leaky Nun

2:22 AM

@ConorO'Brien scopes

ΛεγίωνΜάμμαλϠΨΠʹ

^

Conor O'Brien

I got that much

but insert is in teh global scope, isn't it

Downgoat

@ConorO'Brien you need $

e.g. $insert = 5

Conor O'Brien

that is weird

Leaky Nun

sitepoint.com/understanding-scope-in-ruby

>
Class variable (@@a_variable): Available from the class definition and any sub-classes. Not available from anywhere outside.
Instance variable (@a_variable): Available only within a specific object, across all methods in a class instance. Not available directly from class definitions.
Global variable ($a_variable): Available everywhere within your Ruby script.
Local variable (a_variable): It depends on the scope. You’ll be working with these most and thus encounter the most problems, because their scope depends on various things.

Conor O'Brien

2:23 AM

thanks a lot :) that's really weird

ΛεγίωνΜάμμαλϠΨΠʹ

^ on "that's really weird"

Conor O'Brien

so, just to clarify, ruby has no concept of scope inheritance ?

Leaky Nun

> What do you think happens when you:

1. Define a class (with class SomeClass)
2. Define a module (with module SomeModule)
3. Define a method (with def some_method)?

Every time you do any of these three things, you enter a new scope. It’s like Ruby opening a gate for you and taking you to an entirely different context with entirely different variables.

Just read the friendly website

Conor O'Brien

I tried opening it but my internet timed out

Leaky Nun

@ConorO'Brien then I shall continue quoting it

Conor O'Brien

2:26 AM

no, I'm good.

I'll take a look at it later

Alex A.

@HelkaHomba Gotta go with apples. Love me some apples.

ΛεγίωνΜάμμαλϠΨΠʹ

@LeakyNun Fun fact: That question was part of me trying to solve the cubic equation 2x³ + 3 = 0

Cubics are strange beasts

Leaky Nun

@ΛεγίωνΜάμμαλϠΨΠʹ uh, the solutions are r*cis(60), r*cis(180), r*cis(300) where r=(1.5)^(1/3)

ΛεγίωνΜάμμαλϠΨΠʹ

@LeakyNun Trying to write it in radicals though is tricky :/

Leaky Nun

@ΛεγίωνΜάμμαλϠΨΠʹ not really

:31759491 cos(60) = 1/2
sin(60) = sqrt(3)/2
cos(180) = -1
sin(180) = 0
cos(300) = 1/2
sin(300) = -sqrt(3)/2

Alex A.

2:30 AM

@Downgoat Homebrew does everything with symlinks anyway, it just doesn't preserve the file structure of the project, so I'll have to get a little crafty.

El'endia Starman

@NathanMerrill All manner of things. A short summer job, coding the TNB data explorer, people, my fiancée getting pretty sick (she's better now), etc... Oh. and I'm now actually being paid to develop a website for a client, so that's theoretically priority #1. In practice, I hardly get anything done. It's kinda frustrating.

Downgoat

Best Fruit?

Leaky Nun

cos(60) = 1/2
sin(60) = sqrt(3)/2
cos(180) = -1
sin(180) = 0
cos(300) = 1/2
sin(300) = -sqrt(3)/2

in other words, r(-1)^(1/3), r(-1)^(3/3), r(-1)^(5/3)

Alex A.

@Downgoat All of them (except for a couple) depending on my mood

ΛεγίωνΜάμμαλϠΨΠʹ

The full solution set for the quintic I was solving:

Leaky Nun

2:33 AM

@ΛεγίωνΜάμμαλϠΨΠʹ what is the quintic?

@ΛεγίωνΜάμμαλϠΨΠʹ full solution for quintic should have 5 solutions?

ΛεγίωνΜάμμαλϠΨΠʹ

@LeakyNun Two are plus/minus

Downgoat

@AlexA. wait wat why

._________.

Helka Homba

I see 5

Unless some are identical

Leaky Nun

I didn't see the second comma

I must be blind

ASCII-only

@Downgoat ?

ΛεγίωνΜάμμαλϠΨΠʹ

2:35 AM

@LeakyNun 4x⁵ + 6x³ + 6x² + 9 = 0

Leaky Nun

@ΛεγίωνΜάμμαλϠΨΠʹ alright

Downgoat

@ASCII-only that was in response to alex's message

ΛεγίωνΜάμμαλϠΨΠʹ

So yeah, just factored it and ended up with that 2x³ + 3 = 0 and another quadratic

ASCII-only

oh how did i not see the reply

Leaky Nun

@ΛεγίωνΜάμμαλϠΨΠʹ I see

ΛεγίωνΜάμμαλϠΨΠʹ

2:37 AM

i gtg to bed now, night

Alex A.

@Downgoat For the majority of projects that compile to a single binary or library or whatever, the rest of the source tree isn't needed after building, so it saves a lot of disk space. But then there are cases like this, which are in the minority, where the source tree is significant.

Downgoat

hm... surely there's a way to bundle into a single file... lemme look into it. IIRC running make && make browser_build will compile into a single file but that doesn't actually include the CLI

Alex A.

In the meantime I should be able to just copy the necessary parts of the source tree to Homebrew's location, I think that's just not their preferred way of doing things.

ASCII-only

@Downgoat webpack with node as target maybe?

Downgoat

@ASCII-only oh my god why

that will be so slow

id try uglify.js into one file but then there's node_modules....

ASCII-only

2:45 AM

@Downgoat how

Downgoat

Poll: Favorite goat breed

@ASCII-only it abstracts every node specific function

say bai to optimizations

.o/ optimizations

ASCII-only

abstracts?

Downgoat

Abstraction (software engineering)

In software engineering and computer science, abstraction is a technique for managing complexity of computer systems. It works by establishing a level of complexity on which a person interacts with the system, suppressing the more complex details below the current level. The programmer works with an idealized interface (usually well defined) and can add additional levels of functionality that would otherwise be too complex to handle. For example, a programmer writing code that involves numerical operations may not be interested in the way numbers are represented in the underlying hardware (e.g...

ASCII-only

@Downgoat but if you explicitly target node it won't

Downgoat

rly?

im using browserify

what's different between that and webpack

(note: i use dynamic requires)

ASCII-only

2:48 AM

webpack has support for bundling to node

@Downgoat dynamic?

jlongster.com/Backend-Apps-with-Webpack--Part-I

Downgoat

@ASCII-only hm ok. ill take a look at it but i dont have time because school

Alex A.

3:01 AM

Btw @Downgoat, the website for Cheddar is seriously legit. Nice work there.

Eᴀsᴛᴇʀʟʏ Iʀᴋ

@ΛεγίωνΜάμμαλϠΨΠʹ night

@Downgoat thinking of making a SHA hash for the cheddar install script, to help make it more secure?

Leaky Nun

@Downgoat github.com/cheddar-lang/Cheddar/blob/release-1.0.0/src/…

What do the single uppercase letters mean?

What are alpha, beta? lambda reduction?

Eᴀsᴛᴇʀʟʏ Iʀᴋ

@quartata if you have time can you read through the tournament post draft? Anything we are missing, other than maps?

Downgoat

3:19 AM

@AlexA. :D thank you

@LeakyNun non terminals

Leaky Nun

@Downgoat what does each letter mean?

Downgoat

@LeakyNun each are forks off the original derivation. E.g. with E and alpha derivations alpha is basically E'

@LeakyNun it should say:

ternary -> α β ? E : E
expr -> α β
start -> ( E )     // parenthesis
     L         // number
     B         // boolean
     P         // identifier
     prefix E  // prefix
end -> infix E   // infix
       postfix   // postfix
       ε

wait no that's not right

E -> α β γ
     ε
α -> ( E )
     L
     B
     P
     O E
β -> O E?
     ε
γ -> γα E γβ E
     ε

letters mean the same

gamma is ternary

wait that's still wrong brb

Helka Homba

@Downgoat γ μ do dis

Downgoat

E -> α β γ
     ε
α -> O E
     P
β -> O E
     ε
γ -> γα E γβ E
     ε

O is operator P is property E is expression

gamma-alpha is the ternary head ? and gamma-beta is ternary tail :

Leaky Nun

@Downgoat How does a function get parsed?

How does an array get parsed?

I still haven't found a square bracket anywhere in your code

ASCII-only

3:29 AM

btw bracket is the same as square bracket

@LeakyNun what code/which file

Leaky Nun

cheddar tokenizer

PhiNotPi

how many of you get an "invalid certificate" warning when you visit this website? 700lincoln[dot]com? I tried to get a free SSL certificate; my PC's web browser accepts it just fine but my phone doesn't.

ASCII-only

btw the grammars are in their own files

Downgoat

@LeakyNun tokenizer/parsers/arrary

@LeakyNun character literals are compiled in tokenizer/consts/chars

Leaky Nun

@Downgoat ok, thanks

Nathan Merrill

3:38 AM

@El'endiaStarman I'm not a fan of working as an independent developer, so I'm tempted to tell you to just drop your client :)

El'endia Starman

@NathanMerrill Probably a bad idea when said client is one's best friend... :P

Nathan Merrill

@PhiNotPi my browser doesn't show any warnings

ew, mixing personal and professional life?

Downgoat

@PhiNotPi certificate is fine by my browser

PhiNotPi

@NathanMerrill cool... but I guess I'll have to figure out some other CA to use because android phones don't accept it

Alex A.

@Downgoat I messed something up making the Cheddar Homebrew formula and deleted by /bin directory entirely. I can no longer ls.

Nathan Merrill

3:41 AM

yeah, just tested it with my android, and got a warning

Downgoat

@Quill is it possible to overload loose equality (==) in JS? Using valueOf hacks?

@AlexA. ohmygodwathowisthatevenpossiblewtfsystemintegretyprotection

i guess you'd have to copy over old /bin dir from recovery partion

Alex A.

> recovery partition

...

Nathan Merrill

@PhiNotPi is it possible to have two certificate issuers?

Downgoat

@AlexA. I thought it has been well established that goat is not good with typing because hooves :|

Alex A.

I just mean I don't think I have one

PhiNotPi

3:45 AM

@NathanMerrill no clue

Downgoat

macs have it installed by default in a super-no-tamper-area. Try booting with cmd+R

Nathan Merrill

andreabaccega.com/blog/2010/09/23/…

@PhiNotPi ^

apparently that's a list of all CAs on android

Downgoat

then it should open something and let you click "Terminal" from there mount your disk and copy the /bin dir

Leaky Nun

@Downgoat my current hypothesis is that ()->1 is treated as two tokens: (), an error, and ->1, a constant function

Downgoat

pacifist

Helka Homba

3:47 AM

What's the most popular sequence with negatives and positives and zero in it? e.g. not prime/fib/squares

Downgoat

@LeakyNun can't. functions are passed first

() is not being passed as arg list is only possibility

@HelkaHomba negative numbers: -1, -2, -3, -4, -5, ... formula: f(n) = -n - 1

Nathan Merrill

@HelkaHomba I might say reverse fib

Alex A.

...it was the godDAMN CHEDDAR CLEANUP THING THAT DID IT (╯°□°）╯︵ ┻━┻

Helka Homba

Spill your fondue?

Alex A.

Deleted /bin!

Leaky Nun

3:52 AM

@Downgoat in the function parser, you imported the array parser

I can't seem to see where you used it

Alex A.

@Downgoat I don't have cp since that lives in /bin. :/

I'm going to back up my files then reinstall the OS...

Downgoat

@AlexA. >_>_>_>_>_>_>_>_>_>_>_>_> i feel very bad for my code f*cking up your computer ;_;_;_;_;

@AlexA. no the recovery partion has its own bin utils IIRC

Alex A.

I'll be doing it through the recovery partition, but I'll boot into it instead of mounting it.

Downgoat

i can zip my /bin and put it online and you can copy that to your root but idk if thatll work

Helka Homba

@AlexA. Lesson learned: Don't trust red goats.

Alex A.

3:56 AM

@Downgoat Haha I appreciate the gesture but don't worry about it. This should be fine.

Downgoat

$ zsh
\[\]\[\033[38;5;9m\]\u\[\]\[\]:\[\033[38;5;208m\]\w\[\] \$

zsh = weirdsh

Alex A.

Looks like it's trying to color the prompt

Quill

@Downgoat no.

Downgoat

@Quill :( @javascript why cant you do anything ;_;

Quill

I've been trying to find a way to do it for a while

If you can find a way please let me know

Downgoat

4:00 AM

brb creating "The Quest For ~~Tetris~~ Overloading Ops in JavaScript" room and blog post series

Quill

The best way I've got is to overload toPrimitive

Downgoat

thought that's ES6

@AlexA. oh... i forgot to mention. pass an argument to cleanup specifying the dir to cleanup in else itll do it in root

>_>_>_>_>_>_>_>_>_>_>_>_>_>_>_>_>

ASCII-only

4:14 AM

@Downgoat Depends on the type

Digital Trauma

@AlexA. Ouch. You might have /usr/bin/scp which could stand in for cp

ASCII-only

4:31 AM

@Downgoat toprimitive uses valueof, so yes, or just create a function making a unique string from the object and check equality

@Downgoat also check constructor name if you need

New Meta Posts

0

Q: Is there a sandbox or "unpublished" option for answers that are being developed?

While working on a code snipped for a recent question, I found that due to the self-referential nature of the answer, it would have been helpful to have a sandbox or test area for answers that aren't quite ready to be published. (The gist of the code golf question was to create an answer that re...

discussion feature-request sandbox

ASCII-only

@NewMetaPosts Wow that was slow

Dennis

5:25 AM

OK, that's weird. My ssh session suddenly refused to accept the letter h. I couldn't type it with the keyboard, nor paste it from the clipboard...

DJMcMayhem

Hahaha

Downgoat

@DJMcMayhem you mean "aaa"

Leaky Nun

@Downgoat debugging by testing is far better than debugging by hand... and you would know best what to test

you already have a hypothesis

Downgoat

@LeakyNun :/ ve always debugged by hand

Leaky Nun

@Downgoat transfer to me your knowledge so that i can test it

Maltysen

5:37 AM

hiya all, back in US, finally have internet fast enough that SE chat loads images >_>

@AlexA. jesus

Anonymous

@HelkaHomba Fibonacci generalized to all integers

Dennis

@Downgoat Maybe Ceddar is the culprit. :P Seriously toug, any idea wat triggered it on Alex's computer?

Leaky Nun

        let grammar = this.grammar(true,
            [[A, CheddarArgumentToken, ""], "->", [CheddarCodeblock, ExpressionToken]]
);

@Downgoat what is this?

what is the grammar of the grammar parser?

Dennis

5:54 AM

Eek, I haven't answered a challenge in 2 days.

Leaky Nun

@Dennis I haven't seen an interesting challenge in 2 days

(that includes my challenges)

44

Q: All in all it's just, uh, another trick in code golf

The purpose of this challenge is to produce an ASCII version of the cover of this great album by the rock band Pink Floyd. The brick junctions are made of characters _ and |. Bricks have width 7 and height 2 characters, excluding junctions. So the basic unit, including the junctions, is: ______...

code-golf string ascii-art

this should be good

Dennis

There are a few ones I wanted to answer, but TIO is keeping me busy.

Leaky Nun

let's compete again

Pyth vs Jelly

I have golfed my Pyth solution from 43 bytes to 27 bytes

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