The Nineteenth Byte

Destructible Lemon

04:02

;_; parsers are hard

totallyhuman

hey lemon what do i do when life throws crying lemons at me

Destructible Lemon

obviously you have to burn lifes house down to make an example out of him

normally you would do this with the lemons but the lemons are crying too much for that to be effective

brb

ok it turned out I was being stupid again was the reason why it was borked

totallyhuman

yes that's usually the reason for code bork

developers have a higher tendency of being stupid while doing their job

Destructible Lemon

ACTUALLY IT IS STILL BORKED

Wait false alarm

totallyhuman

;-;

Destructible Lemon

04:14

I need to advance the parser some more so that it can recognize when a thing is just negative stuffs and ()

hmm

so far it parses all the ()s in a list into an int to save time when it runs

but I should make it so it recognizes negatives as well

I could also make it so that it recognizes stuff like ()()[()[()()]]

but that seems like the user could optimise that stuff themselves

actually if I do it right that might be a tagalong effect. but anyway I will stop writing about it in here until I either: finish it, or mega bork it so bad I can't help crying in chat

ok it looks as if my parser is done (except for the execution and newline expansion, better do those now)!

Destructible Lemon

04:37

I called the parsing function lispify because it makes it lisp like

my interpreter uses recursion rather than the third stack because recursion is good and yes

ASCII-only

04:58

@ATaco Even though half the letters are gone I can still read it you know

@ATaco 65248 not 975...

@PhiNotPi Can we help :P

PhiNotPi

@ASCII-only I might need some help from a python handler.

(python handler = someone who knows python)

ASCII-only

@PhiNotPi ok i know python

i mean my main language is JS but i wrote a language in python so i suppose that counts as python handling experience? :P

PhiNotPi

> wrote a language in python

TBH that sounds pretty qualified

Destructible Lemon

I need advice

ASCII-only

it's a golflang though so not complex python

Destructible Lemon

05:03

if program_list[0] == self.command_index["<"]:

ASCII-only

@PhiNotPi ok then i might be able to help

Destructible Lemon

I was doing this because it parses it to numbers, but is this a loss if I just use a dictionary anyway?

the answer is probably yes

ASCII-only

@DestructibleLemon what

PhiNotPi

I'll keep people updated if I run into any actual issues. Right now I'm just planning how I'm gonna solve the problem itself.

Destructible Lemon

but unfortunately python does not have #define

@ASCII-only I mean I was trying to make it so it parses all the commands into numbers in lists, but then using those numbers might obfuscate

but then it ends up defeating the purpose if I use a dictionary anyway

I guess comments

ASCII-only

05:05

@DestructibleLemon yes

Destructible Lemon

ok

ASCII-only

it's faster to lookup the command in a dictionary

Destructible Lemon

hmmm, I just realised, how does ≤≥ work when it is inside another pair of parens?

@DJMcMayhem can you help me with this language design question?

ASCII-only

@DestructibleLemon what kind of question is that (also what do they do)

Destructible Lemon

≤≥ is the halt command

initially I thought this would be annoying, but I think I can fix it if I tune up the parser

done!

Leaky Nun

05:17

CMC: given two positive integers a and b, where b>1, find the next integer from a which shares a divisor with b other than 1 and -1.

ATaco

So I realised there was a huge flaw in my session recovery logic, which essentially kept people logged in all devices as long as one device stayed logged in. So I had to re-write basically my entire session handling script.

ASCII-only

@LeakyNun example pls

Leaky Nun

10,6 -> 12; 9;6 -> 10

Destructible Lemon

how do you make a programming language consider flags?

ASCII-only

@DestructibleLemon consider?

Destructible Lemon

05:26

like how brainflak uses -a and -A

ASCII-only

@DestructibleLemon well handle the flags separately?

Destructible Lemon

in fact, is the - needed?

@ASCII-only do I use these as arguments?

so how do I take arguments to my program like that?

ASCII-only

@LeakyNun JavaScript (ES6), 50 bytes: f=(a,b)=>(h=(a,b)=>b?h(b,a%b):a)(++a,b)>1?a:f(a,b)

had to implement euclid hcf <_<

Downgoat

@ASCII-only btw quetion: can we have multiple applied candidates for 1 root?

e.g.: (U extends T) param take T candidates are U & T

i don't think possible

but idk

not sure how to resolve

idk if I should 1D filter or filter the applied plane too

ASCII-only

what

Downgoat

05:38

ono wat confuse. Like function is: func f(a: T)

f(a: myVar) and myVar's candidates for the type it could be are U and T

ATaco

Worse approach, but how I thought of solving it. a=>b=>{for(;;){a++;for(c=2;c<b;c++){if(a%c+b%c==0)return a}}} 61 bytes.

Destructible Lemon

@ASCII-only I don't know how to handle the flags!

Downgoat

@ATaco ಠ_ಠ you use block lambda ;_;

JS golf tip: never use block lambda

reccomend use recurse

ATaco

I use block lambda when it demands I do.

Downgoat

but if100% sure impossible (which is not possible that it could be impossible) you should do:

ATaco

05:40

Well yeah, I'm not very good at JS.

ASCII-only

@DestructibleLemon what. use argparse

Downgoat

a=>b=>eval("for(;;){a++;for(c=2;c<b;c++){if(a%c+b%c==0)break;}a")

@ASCII-only oh btw can i have ur input on VSL app

Destructible Lemon

@ASCII-only how use

ASCII-only

@Downgoat ???

Downgoat

should it have config so you can change between modes (e.g. type check mode, ast printer mode)

ASCII-only

05:41

@DestructibleLemon :| look at bottom of charcoal.py

@Downgoat yes

Downgoat

@ASCII-only this one: staging.vihan.org/VSL/app

Destructible Lemon

@ASCII-only thanx

Downgoat

@ASCII-only where should button be ^^

or should I add button

Destructible Lemon

@Downgoat ninja'd!

Downgoat

wat ;_; how y u do dis, we never post about same thing?

Destructible Lemon

05:42

because your caret now points at my message

muhahahah

Downgoat

idk what you're taling about

Destructible Lemon

vsl>d
TypeResolutionError: Use of undeclared identifier d. If you wanted to reference a function, make sure you specify a function type somewhere.
TypeResolutionError@staging.vihan.org/VSL/app/main.bundle.js:18738:65
emit@staging.vihan.org/VSL/app/main.bundle.js:4812:19
resolve@staging.vihan.org/VSL/app/main.bundle.js:18430:17
resolve@staging.vihan.org/VSL/app/main.bundle.js:18683:13
modify@staging.vihan.org/VSL/app/main.bundle.js:10338:14
transform_once@staging.vihan.org/VSL/app/main.bundle.js:10875:13

ATaco

The following commands are available:
  help - displays this dialog

Destructible Lemon

ok maybe that is too much error message @Downgoat

Downgoat

@DestructibleLemon not sure wat confuse you never declare d

ASCII-only

05:42

@Downgoat :D work very well

Destructible Lemon

no I mean why is there so much error

ASCII-only

@Downgoat except bad tree

Destructible Lemon

like in python:

>>> d
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'd' is not defined

Downgoat

@DestructibleLemon transformation/deduction passes are incredibly complex so don't expect sane stack traces

Destructible Lemon

it is short and sweet in python

Downgoat

05:43

wtf python only displays one line of stack trace O___o

Destructible Lemon

python is sane

Downgoat

no wonder python program look like carpet

Destructible Lemon

what

Downgoat

carpet = carp = crap

Destructible Lemon

it only has a small stack trace for simple things

Downgoat

05:44

@ASCII-only :D made in react so we can also really easy expand and add new thing

Destructible Lemon

if it is a bunch of recursion layers deep it will be longer

ATaco

How do I do anything in VSL?

ASCII-only

@ATaco there is no compiler yet

Downgoat

@ATaco well STL is not included in REPL by default so make sure you run that:

ASCII-only

@Downgoat carpet python?

Downgoat

05:45

2 days ago, by Downgoat

@primitive(Integer) class Int {}
@primitive(FloatingPoint) class Double {}
@primitive(String) class String {}

once you do that you should have those three root classes

you can then declare variable & function and watch magic type deduct to magic

ASCII-only

@Downgoat :( why tree look so bad pls

Downgoat

;_; halp not expert tree maker like u

i try very hard (like 7 minutes tops) :(

Destructible Lemon

@ASCII-only this is monstrous

ASCII-only

@DestructibleLemon what ono what i do wrong

Destructible Lemon

anyway thanx I guess

ASCII-only

05:47

@Downgoat but is in node.js

Destructible Lemon

@ASCII-only it is just very big

and confusing from bigness

Mr. Xcoder

Hey, there

Downgoat

@ASCII-only oh this is scope printer

ASCII-only

@DestructibleLemon just look at the ArgumentParser part

Destructible Lemon

ok

Downgoat

05:47

i am using ATM for debugging type deduct

quetion: should i call type deduct or type infer

ASCII-only

@Downgoat i mean steal from node.js

Downgoat

porblem is i can't do recursive like in node.js

This is what is ATM:

Evil Sheep

github.com/vsl-lang/VSL/blob/develop/src/vsl/scope/…

ASCII-only

@Downgoat but can still do pretty tree

pls

all u have to do is special case last child

Downgoat

wait does node.js AST tree work

there was lot of change

Evil Sheep

05:50

there was lot of change in node spec.

ASCII-only

@Downgoat idk have not check probably not i just port so we have in js

Downgoat

ono

btw we're not rewriting in C++ like crazyguy say right

like C++ is very hard

ASCII-only

@Downgoat no because manual memory manage is vrey ~~hard~~ annoying

Downgoat

oh yea tru

and also very hard to do cross-platform

ASCII-only

like valgrind go ono u have 8 byte leak

and we have to spend a month finding leak

Downgoat

05:52

:O valgrind = sheep confirm???

ASCII-only

yes

Downgoat

CMC: do you have a doggo/puppo

ASCII-only

@Downgoat no

Destructible Lemon

@Downgoat yes

ASCII-only

@Downgoat *pupper

Destructible Lemon

05:53

@ASCII-only you failed the CMC

ASCII-only

ono u can have more than one of same function

Destructible Lemon

k then seeya

\o

ATaco

ASCII-only

@Downgoat pls see my second most recent message

Downgoat

@DestructibleLemon :O pix pls

ATaco

06:00

I have 2x Doggo.

Downgoat

@ASCII-only wat do u mean

ATaco

"Read this message, then do what it says"

ASCII-only

@Downgoat i can have like million function with same signature = ono

Downgoat

@ASCII-only that is becaus repl

repl alow redeclararion

ASCII-only

@ATaco +1 this sounds really accurate

@Downgoat but wouldn't it override

Downgoat

06:02

Yea

ASCII-only

@Downgoat so why are both in scope at same time D:

ATaco

"Read this message. If the result of doing what it says is the same as the result of doing what this message says, finish following this message."

Forkbomb!

Mr. Xcoder

Can a problem with 3 possible outcomes, like X wins, Y wins, tie be considered a decision-problem

?

Also @MartinEnder and @Dennis, do you mind if I create part 2 of this challenge? This time, I will add the note regarding targeted voting from the beginning, and I will sandbox the post if you agree.

ATaco

@Mr.Xcoder No, But iirc there is a tag for that.

Mr. Xcoder

@ATaco what tag?

ATaco

06:12

classification

Mr. Xcoder

@ATaco Oh, I wasn't aware of that tag. Thanks!

ATaco

Let me just double check that, to be sure.

Mr. Xcoder

However, I don't think it's the case here

No, I doesn't really fit the tag description... Anyways, I will sandbox the post.

ATaco

Yep, classification is the go-to tag for "I have a few classes of things, determine which of these classes the input falls under"

Downgoat

@ASCII-only because i basically create new scope ever REPL execution which inheits old one

Mr. Xcoder

06:15

Yeah, doesn't really fit

Lembik

@LeakyNun hi

and hello all

Mr. Xcoder

@Lembik hi

ATaco

Hola.

Lembik

aloha

Mr. Xcoder

Yá'át'ééh!

Leaky Nun

06:25

@Lembik hi

@ATaco como estas?

Lembik

@LeakyNun I can't stop wanting to edit your math.se question... I don't understand " Clearly the answer is also at least $n$, since one can pick a fixed $a$ and $b$, and argue that $\{ab+c \mid c \in C\}$ has exactly $n$ elements."

In fact I feel it is wrong

do you mind if I change it?

Leaky Nun

@Lembik it's thy question; change it howsoever thou willest

Lembik

thanks

Mr. Xcoder

@Lembik You are about to hit 10kin total! Congrats!

Leaky Nun

@Mr.Xcoder too many accents, lol

Lembik

06:28

@LeakyNun so.. why is it at least n?

is that obvious?

otherwise I will just delete that part

Leaky Nun

@Lembik I gave a justification.

Mr. Xcoder

That's Navajo (the language).

Lembik

@LeakyNun it's the line I pasted above?

that doesn't make sense to me

Leaky Nun

yes

why not?

Lembik

why should that have exactly n elements?

Leaky Nun

06:29

why not?

Lembik

oh I see what you meant!

sorry :(

ATaco

@LeakyNun No habla el Español.

Leaky Nun

@ATaco but you just spoke it

@Mr.Xcoder Are you a native speaker thereof?

Lembik

@LeakyNun at least the question is getting a few upvotes now

ATaco

I can say various forms of hello across various languages, I don't speak most of them.

Mr. Xcoder

06:31

@LeakyNun Of course not

That's a Southern Athabaskan Language

I'm from Romania

Leaky Nun

oh

Romania is the only Romance language that has managed to preserve three cases iirc

Mr. Xcoder

In my language: "Salut!" or "Buna ziua!"

@LeakyNun What do you mean by "three cases"?

ATaco

In my language: "G'day!"

Leaky Nun

@Mr.Xcoder /s the lowercase, the uppercase, and ...

no, the nominative, the genitive/dative, and the accusative

Mr. Xcoder

and the vocative

there are 5

Leaky Nun

06:34

are they different?

Mr. Xcoder

YEs

Leaky Nun

For example?

Mr. Xcoder

Genitive and Dativ are related

It's hard for me to give examples in English @LeakyNun

Leaky Nun

no, I mean the word

Mr. Xcoder

What word

??

Leaky Nun

06:35

I thought the genitive and the dative are the same word although they have different functions

like the inflection is the same

like you add the same ending

Mr. Xcoder

@LeakyNun It's not related to the word itself. They both point to structures that express posesion

But in different contexts

Leaky Nun

I'm only referring to the word itself

Mendeleev

Russian has cases

I think there's 6

Mr. Xcoder

The form of "Dative" and "Genitive", the similitude between them is irrelevant @LeakyNun

Leaky Nun

I am only talking about the forms

of course I know that genitive and dative are different functions

Mr. Xcoder

06:38

Ok, let me give you some examples.

Leaky Nun

I mean, other Romance languages have merged the forms of the cases

ATaco

Sadly no-one counts Australian as a Romance language.

Mr. Xcoder

@LeakyNun Genitive: "My grandmother's glasses are old." - Here "glasses" is in Genitive (in Romanian), Dative: "I told him that ... " - Here "him" is in Dative. The common ending of the words "Dativ" and "Genitiv" only denotes that they both express possession.

Leaky Nun

why would it be and why is it sad?

ATaco

What's more romantic than "Oi sheela! Fancy a shag?"

Leaky Nun

06:41

@Mr.Xcoder I said I know they mean different things

I just said the forms in Romanian are the same

Mr. Xcoder

@LeakyNun I know you knew.

True

Leaky Nun

and English actually has two cases, but the second case has been highly regularized

cookies for figuring out what the second case is

Mr. Xcoder

@LeakyNun I think you will end up eating those cookies by yourself :))

Leaky Nun

You just used that case :p

Mr. Xcoder

Oh really?

Where specifically, if you are willing to share with us @LeakyNun

Leaky Nun

06:47

well, "yourself"

Mr. Xcoder

I give up

Leaky Nun

the genitive case...

king -> king's

book -> book's

Mr. Xcoder

Really :\\

highly regularized?

Leaky Nun

regularize to become 's for all nouns

Mr. Xcoder

Oh, ok.

New Sandboxed Posts

06:50

0

A: Sandbox for Proposed Challenges

Bubble the brackets! There are a few questions on this site about balancing brackets, and checking whether brackets are balanced. I propose it's now time to use those balanced brackets for something! In mathematics and programming, brackets are like bubbles, isolating everything inside form eve...

Mr. Xcoder

Then, is "x of the object" still used to express possession?

Leaky Nun

Old English cyning -> English king

Old English cyninges -> English king's

@Mr.Xcoder sure

feersum

Why do you consider that a case and not the difference between subject/object?

I/me, She/her etc.

Leaky Nun

because that distinction is only there for the pronouns

whereas the distinction between nominative and genitive is there in all nouns

feersum

@LeakyNun Precisely the same situation as for the apostrophe-s things.

Leaky Nun

06:55

@feersum no, "king's" itself is the genitive

feersum

OK, but what's wrong with two cases sometimes having the same spelling?

Leaky Nun

well then they have merged

Mr. Xcoder

@feersum Mainly, merging helps avoiding confusion.

Leaky Nun

@feersum you can call it the nominative/accusative/dative case

Destructible Lemon

hi I'm back

Mr. Xcoder

07:02

Why are some users in stack exchange chat greyed out a little?

Destructible Lemon

@Mr.Xcoder they have been inactive, and over time the avatars grey out little by little while inactive

Mr. Xcoder

@DestructibleLemon But are they present in the room?

Destructible Lemon

yes

Mr. Xcoder

@DestructibleLemon Thanks!

@Dennis and @MartinEnder

57 mins ago, by Mr. Xcoder

Also @MartinEnder and @Dennis, do you mind if I create part 2 of this challenge? This time, I will add the note regarding targeted voting from the beginning, and I will sandbox the post if you agree.

^

Destructible Lemon

(they do tend to be sleeping sometimes though)

Mr. Xcoder

07:08

@DestructibleLemon Good point....

Destructible Lemon

they'll get to the ping when they do, still

Mr. Xcoder

My sandbox challenge is ready, and I think I will post it. If you disagree with the idea, I will not upload it on Main

Just let me know.

Newly Featured Questions

16

Q: Generalized Quine Generator

The Challenge In this challenge, you specify a source language S and a target language T. Your task is to write the following program P in the language S. If a valid program Q in the language T is given as input to P, it will output a valid program R in the language T which takes no input and ou...

Mr. Xcoder

+ 600 OMG

Ignore the above comment ^

New Sandboxed Posts

07:23

0

A: Sandbox for Proposed Challenges

Martin vs Dennis - Round 2: Who has more upvotes? stack-exchange-api code-golf This is the sandbox for the second round in this series of Challenges. Here is Round 1, but this one is a completely different challenge. Your task is to write a program or function, that, given the ID of a questi...

Adám

@Mr.Xcoder You can always ping someone who has spoken in the room, even if they are not present.

Mr. Xcoder

@Adám Yes, I know that.

BYE!

Arjun

Hi

@Adám Isn't there some sort of rule that they must have spoken in the room in the past fortnight?

Adám

@Arjun Have not heard of such. We could maybe test that by finding a room one of us have not spoken in for over two weeks?

Arjun

07:43

@Adám Ping me here chat.stackoverflow.com/rooms/29074/html-css-webdesign

Adám

I've pinged @Arjun there.

@Arjun It would seems so, as your id wasn't suggested.

Arjun

@Adám Nothing happened.

Adám

@Arjun Oh no, now I cannot delete my msg. :-(

Jim

Hullo

Leaky Nun

@Adám do you have CMC?

Adám

07:48

@LeakyNun You want a challenge?

Leaky Nun

sure

I find your CMCs to be of much quality

Adám

@LeakyNun Thank you.

Leaky Nun

So do you have one?

Adám

CMC: Given a strictly ascending list and a list of any numbers, return the index of the gap in which each would fit in the ascending list.

E.g. 1 2 3 4 and 7 3 6 2 → 4 3 4 2 (one indexed)

Leaky Nun

You see, my compliment stands

Adám

07:53

@LeakyNun :-)

Kritixi Lithos

I don't get the challenge

Leaky Nun

why is it not 4 3 5 2?

Adám

@LeakyNun Because each one is judged anew.

Leaky Nun

Then it is an unnecessary layer of complication

Adám

@LeakyNun I.e. you're not supposed to actually put them in there, only return which gap they would go in.

Leaky Nun

07:55

It would be something like +/@:<\ in J, but I don't have a computer

Dennis

@Mr.Xcoder Note or not, anything based on votes isn't going to encourage good behavior...

Adám

@LeakyNun No, it is a useful operation, e.g. for labeling observations.

@LeakyNun I can do it in a third that length in J.

Leaky Nun

And I think the ranks in J are messed up

Adám

@LeakyNun Ranks?

Kritixi Lithos

@Adám do you mean something like this: (≢⊣)⌊⍳?

Leaky Nun

07:57

@Adám good for you

Adám

@KritixiLithos No, that gives the right result in this case, but not otherwise.

Kritixi Lithos

could you give another example?

Adám

1 2 3 4 and 7 3 2 1.5 → 4 3 2 1

Kritixi Lithos

ooh

I get it now

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