The Nineteenth Byte

Quill

04:00

I use strictly typed in Adynata

Downgoat

that will be so hard to parse

Cyoce

@Downgoat platypi*

Quill

along with an optional constant modifier

~~nope~~ sorry, thought you were talking about my Ady file

Downgoat

@Cyoce no I'm right, platypuses seem to valid in the dictionary

phase

@Quill Does it compile to JS?

Downgoat

04:00

@Quill yeah it is

the grammar for that will take many more steps to parse

Quill

@phase It doesn't transpile to normal JS, it's written and runs in normal js

Downgoat

@phase should I do it like this?

Cyoce

@Downgoat := should imply a dynamically typed variable.

Downgoat

ok. I'll change equality to == then, is that good?

Cyoce

@Downgoat Yes!

== should always be equality

Downgoat

04:02

ok, brb making variables

phase

@Cyoce Dynamically typed is wrong, the type is just inferred.

Cyoce

Make static typing optional! I want to be able to use Cheddar!

phase

@Quill So it's an interpreter?

Quill

Theoretically it could transpile to JS, but I'm very bad at writing tokenizers

Downgoat

@Cyoce ok, I'll make it optional but I'll reccomend using it in the docs

Quill

04:03

I have not written scopes yet and my existing tokenizer is horrible

Cyoce

@phase No, it's right. You want := to be inferred. I want it to specify a variable that is dynamically typed.

Downgoat

@Quill rty using jison, I've heard it's good

Cyoce

@Downgoat So := is dynamically typed then?

Downgoat

@Cyoce yeah

Cyoce

@Downgoat Nice!

Downgoat

04:04

it is not dynamic, only implicit

phase

@Cyoce oh yeah kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk

Downgoat

so foo := 123 will implicitly specify the typed

Quill

@Downgoat I don't understand the first half of that message

Downgoat

@Quill try using jison, I've heard it's good

you can just enter a BNF and it parses it

and it supports left recursion

Cyoce

@Downgoat so would foo := 123; foo = "bar" be valid? Cuz that's what I'm suggesting. However, foo : Int = 123; foo = "bar" would be the invalid one.

Quill

04:05

I want to write my own Tokenizer

Downgoat

@Quill why?

Quill

because I do

Downgoat

if you really want to I recommend making a simple grammar function which takes a CFG and a string, it'll significantly make your code easier to read and be easier for you to code

Quill

CFG?

Downgoat

@Cyoce do you want foo := 123; foo = "bar" to be valid? I guess I could do it that way but I don't know if it's a good idea

@Quill context free grammar

Cyoce

04:09

@Downgoat That's what "dynamically typed" implies, so yes. If you want it a variable to be restricted by one type, you specify that type with foo : Int = 123

Downgoat

then again CFG parser ≈ Regex

@Cyoce ok, sounds good, I'll do it that way

Cyoce

@Downgoat Excellent!

Downgoat

@QPaysTaxes with fancy regex it can actually be very nice

lemme make an example:

Quill

@QPaysTaxes because it's more likely to get attention, as someone who cannot help you out, starring it helps somebody who can to find your request and thus you are more likely to attain help

that's alright. I doubt anything's gonna get me riled up today... I've already "dealt" with two meta rants

Ã¢â¬ÅIf you can read this, congratulationsÃ¢â¬âthe archive youÃ¢â¬â¢re you're using still knows about the mouseover textÃ¢â¬Â!

Latest XKCD

Doorknob

@Quill hahaha

Ashwin Gupta

04:18

where can I host my images file for my website?

It won't work with github pages.

I tried google drive and dropbox but the images wouldn't show up.

Quill

it should work with github pages

if not you can always use imgur

Ashwin Gupta

oh github pages*

LOL

ill spare you.

ok let me try both

Quill

ty you can have 5 <3 points

Ashwin Gupta

imgur won't work

its blocked.

on my school wifi

Quill

oh

Ashwin Gupta

04:20

its not tho

here u can see for urself

Downgoat

@QPaysTaxes: regex101.com/r/bK2xB1/2

Ashwin Gupta

niwhsa9.github.io/8th-Grade-Exit-Interview

try the page "science"

its the only one thats complete.

y aint it working?

Quill

no idea....

Ashwin Gupta

it only works on my local file system when I leave it on my file system.

=/

Downgoat

@AshwinGupta unmatching protocols

Ashwin Gupta

04:23

no I mean't when I host the images on my file system.

When I use the drive links it doesn't work even on my file system.

Quill

It can't find files at those locations

Ashwin Gupta

y tho, its all there

github.com/niwhsa9/8th-Grade-Exit-Interview

follow the path for urself

mkay here is the thing.

I got it to work. But I don't like it.

I used the "raw" link in the repo.

Quill

I know why it doesnt work

Ashwin Gupta

y?

Quill

see how those files in the picture use .jpg, the actual files use .JPG

Ashwin Gupta

04:27

really?

oh.

Quill

seriously .JPG and .jpg (<-- they're links)

Ashwin Gupta

wait whats the corrct extension?

wow..... =/ sorry about that. Wasted so much of ur time

Quill

they're both correct, it's just that the ones you have in your github pages repo use .JPG

Ashwin Gupta

interesting, the ones on my file system are .jpg

Quill

@AshwinGupta It's okay :)

Ashwin Gupta

04:28

.jpg on my file system.

alright gonna fix it now.

New Main Posts

0

Q: Find words that rhyme with

Challenge Joe the rapper is struggling with rhyming words in his lyrics. He needs your help. When Joe inputs a word, the program will read a list of words from a file and output those that rhyme with Joe's word. To show that the program works, we will only need to use a small list. txt File: ...

code-golf

Maltysen

@Downgoat Php? Ewwww, no, it's Flask.

Ashwin Gupta

good catch quill

working now

Quill

no worries :)

Maltysen

3 hours ago, by Maltysen

@Quill nah I'm gonna allow that, and just let the guys friends deal with him being an asshole. This philosophy and a bot being so easy to code has the additional benefit that I don't have to follow good security in terms of writing things client side.

Downgoat

04:39

@QPaysTaxes I wrote the entire tokenizer for Cheddar in regex: regex101.com/r/bK2xB1/3

Maltysen

Basically, it doesn't matter if there hack it, because writing a bot is so easy.

@CᴏɴᴏʀO'Bʀɪᴇɴ ^

Quill

@Maltysen as long as the game wins don't have repercussions over the entire network it will be fine

Ashwin Gupta

@Downgoat thats pretty neat.

Downgoat

I should make a regex golf for shortest expression matching regex

Quill

I need to find a code layout style that supports a tokenizer that doesn't work off a regex

Downgoat

04:44

@Quill what is wrong with regex

that regex is beautiful

and it is a proper regex

any CFG can be written in regex

Quill

it's just not how I'm doing Adynata, which is why I need to find a code layout

Downgoat

what do you mean by code layout

Quill

patterns, perhaps, more like I have a tokenizer that does everything

here, read over the tokenizer code and weep

Downgoat

@Quill so like a grammar() function like I have for cheddar?

Quill

yeah, perhaps. I still don't know how the concept of scopes is gonna work

Downgoat

04:48

@Quill Scopes don't need to be too complicated, though if you're wondering on how to implement them you can see how cheddar did it

I first thought I'd need to sandbox everything but simply have an internal hashmap along with accessor and setter properties and that's all you really need

Quill

my tokenizer is really naive. it has a stage variable that defines each stage in the tokenizer...

like "Modifier declared, expecting a type after this, expecting a name after that, expecting an assignment character after that, expecting a valid value as to the type after that and then reset the stage

Downgoat

@Quill this mess is exactly what a regular expression does. Regular expressions are essentially a code form of CFGs, you should really use them

Quill

I don't know that I want to write a massive regular expression to parse out the file

surely there's a non-regex way to tokenize languages

Downgoat

@Quill a (properly written) massive regular expression is much nicer and readable than a giant lump of code changing states to tokenize though

Quill

I know... I'm just avoiding doing that ;-;

TIL: Chrome has a dark theme for dev tools :D

Downgoat

04:59

this has given me an inspiration to write a node library to take a regex file and parse it as pcre regex which will be sooooo good for tokenizing things

imagine how neat your code will be

Anonymous

> node ... neat ... code

Anonymous

Does not compute :P

Quill

> node ... library ... regex ... parse

sounds dangerous

Anonymous

Add HTML in there and you're set

Downgoat

but it's not

Quill

05:01

those are four of my least favourite words

Downgoat

regex has just gotten a bad rap for being bad for production-use due noobs using it to parse HTML

Anonymous

I like libraries. They smell like books.

Anonymous

Regex is like most things - great in theory :P

Downgoat

I like barns, they smell of hay

@Mego What's wrong with regex?

Anonymous

In theory, it is great and does all things. In practice, it's usually not the best solution.

Downgoat

05:03

@Mego why not?

In the case when you're writing CFG parsers, it is the perfect solution.

Anonymous

Have you ever heard the phrase "rabbit hunting with an elephant gun"?

Downgoat

@Mego no

github.com/vihanb/pcre-parser

Anonymous

Sure, if you're doing one of those things that regex is particularly well-suited for, like writing CFG parsers, then it's great. But in the real world, 90% of the time regex is used, a much simpler parsing solution would work just as well.

Anonymous

Rabbit hunting with an elephant gun means that you picked a tool that is severely overkill for the goal

Downgoat

05:17

always important to have more makefile than actual code :|

Anonymous

What are you using the Makefile for?

Downgoat

to make tests

Anonymous

Ahh

Anonymous

Yeah having more tests than code is probably a good idea :P

Quill

./node_modules/.bin/mocha --reporter spec

that can go in your package.json file

Downgoat

05:21

@Quill do you think its important to jsdoc your code

Quill

important in some sense

good code documents itself

Downgoat

nah

it makes me sad when people still use var when node supports let and const :(

O_o why does emscripten need openssl

Anonymous

So it can upload your code to a server where people can mock it/you

Anonymous

Obviously

Downgoat

brb compiling pcre to js with emscripten

wat is pcre2

pcre source is more comment that source ._.

@Quill do you know emscripten?

Quill

05:33

nope

Downgoat

D:

halp, how llvm pcre, i emscripten fo thritee minut an no js file

Quill

halp, how get work doen, i tri for entier dae and no werk deon

Downgoat

tri levng teh nientent bite an mayb u git werk dun

$ cmake
Usage

  cmake [options] <path-to-source>
  cmake [options] <path-to-existing-build>

Specify a source directory to (re-)generate a build system for it in the
current working directory.  Specify an existing build directory to
re-generate its build system.

dammit, now how do I know what do to

$ ./install-sh
./install-sh: no input file specified.

wtf

Anonymous

It's cmake .

Downgoat

INFO:root:(Emscripten: Running sanity checks)

Anonymous

05:47

The . is important

Downgoat

huh, me and emscripten are doing the same thing right now

Anonymous

> ERROR 404: Sanity not found.

Downgoat

@Mego yeah, figured that out :P got pcre installed, now to figure out how to compile it

Anonymous

I'd be very surprised if just naively compiling pcre with emscripten will work

Downgoat

regex101 did it and it worked for them

/Users/vihan/Downloads/pcre-8.38/pcregrep.c:161:23: error: use of undeclared identifier 'PCREGREP_BUFSIZE'
static int bufthird = PCREGREP_BUFSIZE;
                      ^
/Users/vihan/Downloads/pcre-8.38/pcregrep.c:162:24: error: use of undeclared identifier 'PCREGREP_BUFSIZE'
static int bufsize = 3*PCREGREP_BUFSIZE;
                       ^
warning: format specifies type 'int' but the argument has type '<dependent type>' [-Wformat]
/Users/vihan/Downloads/pcre-8.38/pcregrep.c:925:56: error: use of undeclared identifier 'PCREGREP_BUFSIZE'

;_;

screw it, asking on the irc channel

Mars Ultor

06:14

Can't you directly emscripten it?

Bálint

Hi

@Downgoat BTW, you can connect and existing domain name to a wordpress.com blog, I did it multiple times. The only thing, that costs $70 is to register it.

Mars Ultor

@Bálint The domain?

Bálint

@MarsUltor Hm?

Mars Ultor

$70 to register what?

Bálint

Oh, yes, if you register it through wordpress.com

Mars Ultor

06:22

@Doorknob Just split the file?

VTCAKAVSMoACE

07:09

Anonymous

Trying to compute all primes < 2**31 is probably a bad idea

Anonymous

Trying to do that and then compute all Fibonacci numbers < 2**31 is probably a worse idea

VTCAKAVSMoACE

What could possibly go wrong?

Anonymous

Well I'm pickling the lists... Good thing I have a 1 TB HDD

flawr

07:33

You know what's a worse idea? Computing all primes >= 2**31.

Anonymous

No worries man, I have a 1 TB HDD and a very tough hamster

Anonymous

He'll find all of them eventually :P

VTCAKAVSMoACE

@flawr ∞?

woah

such gif

much wow

mınxomaτ

stop xkcd spamming pls. thank

VTCAKAVSMoACE

@mınxomaτ many sor

i am doing a large read

mınxomaτ

07:45

zyabin101

Hello

VTCAKAVSMoACE

Helo

mınxomaτ

, it's me

I was wondering if after all these years you'd like to meet...

zyabin101

The Very Done Golfer!

Bálint

08:06

Is it okay, if in a game, I have 1 object with multiple smaller objects with multiple smaller objects in them, and etc?

muddyfish

Depends how big it is

In my game i have loads of those

Bálint

Example: I have a world object, wich contains the player object, wich contains the camera and the model, and the model contains the model information

muddyfish

Yeah

I have it like that

but with a game object and a screen object and a subscriber object...

I don't think the camera should be part of the player though

Bálint

And also, I make everything private, except if it's at least 90% neccesary to be private or protected

muddyfish

I never did get the point of stuff being private but Im a python guy

Bálint

08:10

They can't get changed

muddyfish

I know that but I never saw the point

'We're all consenting adults here' - Python

Bálint

So getting to the vertex count is a pain

Like world.getPlayer().getModel().getVertexArray().getVertexCount()

muddyfish

Im probably not the gut to be talking to about private stuff though...

Oh

I had a object that contained stuff like that

Anonymous

Games are pretty much the only software where it's acceptable to have a god object

Bálint

@Mego Do you mean a factory or a container?

Anonymous

08:12

I mean a single global-scope object that does everything and provides access to everything else

Anonymous

God object

In object-oriented programming, a god object is an object that knows too much or does too much. The god object is an example of an anti-pattern. A common programming technique is to separate a large problem into several smaller problems (a divide and conquer strategy) and create solutions for each of them. Once the smaller problems are solved, the big problem as a whole has been solved. Therefore a given object for a small problem need only know about itself. Likewise, there is only one set of problems an object needs to solve: its own problems. In contrast, a program that employs a god object...

muddyfish

^

5

Q: How Godly does an object need to be before it becomes unholy?

I've been told that using God objects at all is a Bad Thing™ In object oriented languages, God objects know all, they control too much. I'm trying to build a game (or for the scope of this question a generic app with a GUI) and I'm using a Main object that holds all the other objects needed to m...

python oop design-patterns

Bálint

I just don't want to pass 5 things to the renderer's constructor

Mars Ultor

Halp how do I create hover css in pure JS?

muddyfish

-1 not enough JQuery

Bálint

08:15

What do you mean by hover css?

Mars Ultor

Not all websites have/want jQuery

Bálint

I don't like JQuery

Mars Ultor

@Bálint selector:hover {/*css here*/}

muddyfish

I know but thats what stackoverflow would say

Mars Ultor

@muddyfish Definitely

Bálint

08:15

Ohh

Maybe create a class for this, and if you want to enable it, add that class to the element

Mars Ultor

wait

brb, testing something

Bálint

And also, should a 2.5d, top down game with a completely flat terrain have a separate class for it?

muddyfish

I did

Mars Ultor

\o/ just used mouseenter/mouseleave

Bálint

slow clap

muddyfish

08:18

Well done!

Yay

Mars Ultor

Luckily there are hardly any style changes on hover/unhover

muddyfish

Just finished writing a server for

64

A: Sandbox for Proposed Challenges

EDIT: This challenge is looking for someone to either writefinish and run an arena server, or someone that wants to rephrase the challenge so that an arena server is not needed and who is also prepared to run entries manually. Both options turned out to be more complicated for me than I originall...

(The game of life one)

Would anyone be able to test it?

And know how I can go about inheriting it?

Mars Ultor

08:35

Wait

is that 30 cells per turn?

Also, I think Elo rating may be better than KD spread for this

muddyfish

Im changing it up a bit

github.com/muddyfish/PPCG-Life

^My repo

(Adding a readme with challenge spec now)

muddyfish

08:59

Added readme

Anyone want to give feedback?

zyabin101

Firefox becomes dumb forever.

muddyfish

?

zyabin101

My browser has put a "death lock" on all of my Firefox profiles, so I couldn't delete them.

Mars Ultor

@zyabin101 death lock?

zyabin101

Help make StackExchange work on lesser known browsers ;_____;

@MarsUltor I'm unable to fully delete my profiles.

Mars Ultor

09:02

But FF is the second most well known browser

@zyabin101 Force delete?

Or else kill FF and force delete

zyabin101

@MarsUltor The rm -rf tool doesn't work.

Mars Ultor

@zyabin101 You're on windows, right?

zyabin101

@MarsUltor Yes.

I have the git shell.

Mars Ultor

What happens when you try to delete it?

zyabin101

@MarsUltor A few files fail to be deleted, and rm fails with "Directory not empty".

Mars Ultor

09:05

Can't you delete from Windows Explorer?

Also, sudo doesn't work?

zyabin101

Can't.

@MarsUltor The git shell has no sudo.

muddyfish

Delete the stuff in the directory with explorer

Mars Ultor

What happens when you try to delete on Windows Explorer?

muddyfish

and then delete the directory when empty

recurse

Mars Ultor

@muddyfish No

Just delete the directory in Windows Explorer

muddyfish

09:06

That worked for me

zyabin101

@MarsUltor The Explorer says, "No permission to delete directory."

So, no way to delete it.

Mars Ultor

@zyabin101 Right click -> Properties -> Security -> Advanced

New Main Posts

0

Q: Randomly Assign People to Tasks

The challenge is to assign people to tasks randomly~. From stdin you get 2 lines. Line one is a comma-separated list of names. Line 2 is a comma-separated list of jobs. The output required is one line per task person combo. The line should be formatted as Name:task. If there are not enough people...

code-golf array-manipulation

zyabin101

@MarsUltor Trying to set up the file owner fails.

Mars Ultor

@zyabin101 ???

zyabin101

09:07

"Permission denied."

Mars Ultor

Are you an administrator?

zyabin101

Yes.

Mars Ultor

That doesn't work?

zyabin101

I have Vista.

So no.

Mars Ultor

@zyabin101 Pretty sure Vista has it

It's not the permissions screen

mınxomaτ

09:10

Just use the command and takeown + icacls.

Mars Ultor

@zyabin101 If you're here, click Advanced

zyabin101

@MarsUltor I tried to.

mınxomaτ

Just do takeown /F somedir /A /R & icacls somedir /grant:r User:F /T, where somedir is the thing you try to own.

From admin CMD.

muddyfish

could be some hypervisor getting in the way?

zyabin101

@muddyfish I have no hypervisor.

Also, I'm wasting time already because I have to go to school soon.

VTCAKAVSMoACE

09:35

Lol, is it said that I read this like house music? Print, now wait 1. Print, now wait 1. — VTCAKAVSMoACE 15 secs ago

Lembik

09:57

hello all

Quill

hello

Lembik

how are the fiendishly hard puzzles doing today?

I have a fiendish polyglot puzzle in mind.. but I worry it may have been done

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Toggle a string string The challenge involve simply toggling a string within another string. It should take two parameters: the container string and the string to toggle. For example: toggle('this string has 6 words ', 'now') => 'this string has 6 words now' toggle('this string has 5 words ...

flawr

@QPaysTaxes Cool, do you also have some documentation?=)

New Main Posts

10:14

0

Q: RegEx-golf: match all contents in a string

Your task is to write a RegEx that matches everything inside strings. A string is defined as everything surrounded by (but not including) two unescaped ". A " can be escaped by \, which can also be escaped again. Testcases string: abc"defg\\\"hi"jkl"mn\\\\" matches: ^^^^^^^^^^ ^^^^^^...

code-golf regular-expression

Mars Ultor

10:39

what did you do

You can't do it on multiline

Multiline assumes raw text

Martin Büttner

the only thing that works on multiline is having everything as code (using indentation) or as a block quote

Kenny Lau

How would I modify this regex to make it match multiples of 9: (?<!x)(\S)+(?<-1>){9}(?(1)(?!))(?!x)

Martin Büttner

what's wrong with (?<!x)((\S){9})+(?!x)?

Kenny Lau

Well, I would like to use balancing groups

Agawa001

(\s|([x]{9}(?(1))))

Martin Büttner

10:44

I don't think there's an easy way to do that in your case.

Kenny Lau

I tried ((?<-1>){9})+ to no avail. Could you explain why it fails?

Agawa001

i cant do much lookahead/behind

Martin Büttner

@KennyLau yes, because the engine will not attempt more repetitions of an empty match than it has to

(this is a necessary optimisation to avoid infinite repetition)

so (...)+ where ... is an empty match will use the group at most once. there is no way to make it try an arbitrary amount.

Kenny Lau

oh ok, thanks

Martin Büttner

(in fact, this optimisation is also the only thing that prevents .NET regex from being Turing-complete on its own)

Agawa001

10:48

it can be shorter ((\S{9}(?(1))))

Martin Büttner

(?(1)) doesn't do anything.

Kenny Lau

"i cant do much lookahead/behind" it isn't even one

Agawa001

i dont know that depends on multiple of 9 of what ?

Martin Büttner

@Agawa001 sorry, I don't understand the question. could you rephrase it?

@KennyLau Btw, if you know a finite upper limit N of multiples, you can do ((?<-1>){9}|){N} I think.

Kenny Lau

what does the | do?

Martin Büttner

10:58

makes it optional

the same as (((?<-1>){9})?){N}

Kenny Lau

I understand regex, but what is its function?

why is it necessary?

oh, I think I get it

Transcript for