The Nineteenth Byte

1:26 PM

@BetaDecay Inkscape messes up the fonts, not WINE?

Anyway, WINE provides a Windows environment on Linux, so, you can run the format's creator's own program

WINE is not an emulator, though, as the backronym explains, instead the project's contributors just re-write the code that makes Windows from scratch

metagolf to the rescue!

3

A: "Hello, World!"

Pada, 83 68 bytes ~.O~Ow~q~Owo~O~Oww~Q~qwo~q~O~wQ~q~w~q~q~Q~Ow~Q~Q~wo~q~w.~q~w.~.wO~qw I believe this is optimal. There might be a shorter version using * and ?, but I don't see how it would work or how one would go about finding it. The language has recently undergone some changes after I st...

Doorknob

Hey, and welcome to PPCG. Unfortunately this question belongs on the site Android Enthusiasts, and is off topic here. — Beta Decay 2 hours ago

@BetaDecay Actually it doesn't, because it's spam

@Doorknob Oh well, it's deleted now

Doorknob

@georgeunix yes, because I deleted it :P

haha

1:39 PM

@MartinBüttner Perfect timing: I can't seem to catch up with Sp3000 and my 21-byte submission just got cracked. :/ Seriously though, I could use the extra time.

@Doorknob damn, I didn't even notice the link

@aditsu Link?

Oh.

dw

in that deleted question

@aditsu How far are you with your PDF stamping?

I just asked somebody else to do it :D

1:42 PM

Oh haha

I might write a tool at some point..

NinjaBearMonkey

@MartinBüttner @Doorknob The sandbox has been un-featured again.

or has it?

Doorknob

@NinjaBearMonkey No it hasn't. :P

NinjaBearMonkey

@MartinBüttner That was fast. Were you already on it before I asked?

1:47 PM

I had meta open in another tab

2:04 PM

@Dennis The extra time I'll have once the challenge gets closed, I mean.

@Dennis Talking about extra time: You should probably add an explanation for your solution in Alex' prime challenge. At least that's the only logical reason why my longer solution may be getting as many upvotes. I expected mine to be safely at the bottom with hopefully 1 or 2 votes, and certainly not get in the way of better solutions.

randomra

@Dennis which is the 21-byte submission? you have quite a few answers there

A: The Programming Language Quiz

@RetoKoradi Thanks for reminding me.

@randomra This one:

6

Finite Groups, 21 bytes, cracked by nimi "Hello,"" World!"|p"? Now 100% O-proof.

New Main Posts

1

Q: Interpreted Interpreter

Programming a programming language in itself is something that has interested me since I knew what a programming language was. So I thought I'd create a Code Golf challenge for you. Challenge Create an interpreter for a given programming language, programmed entirely in itself. The interpreter ...

well it took long enough for HW to get a downvote :D

2:19 PM

Some people. My latest challenge has a down- and a too broad vote.

I can understand why somebody would downvote it. I don't get the close vote.

@MartinBüttner Btw, 3.3 answers per vote has to be some kind of record.

(not counting questions with 0 votes)

@TheNumberOne I'm not exactly sure what you mean by "let the code intersect with itself"?

ETHproductions

@RetoKoradi Ah, I see. I didn't realize Javascript could be used to communicate with the interpreters written in other languages.

2:36 PM

@RetoKoradi umm, the "online" CJam interpreter is in javascript (translated from java), and works offline

2:50 PM

@aditsu Ah, that would probably explain why it's slower. So that's a different implementation. It's not possible to somehow invoke an interpreter written in Java from a web page? I really don't know this web programming stuff. Haven't really written web pages since they were written in... HTML.

@RetoKoradi Sure it is. But you'd have to run the scripts on the server.

you mean slower than the java interpreter? yes

and yeah, I could run the java interpreter on the server, but I don't want to do that - there are problems with resource usage, security, etc

Running them client-side has a number of advantages: 1. No lag. In fact, once the page loaded, you don't even need an internet connection. 2. No security issues. 3. No CPU/RAM usage on the server.

exactly

@Dennis Right, that makes sense. I guess that would be bad if I produce endless loops in my CJam code, which happens surprisingly often.

2:53 PM

and 4. Extremely simple site on the server side

just a few static files

I wonder how fast the JS interpreter would be with Node.

I thought you could run Java code in a browser? Or did people start disabling that because of security issues?

oh, applets? yeah.. they're kinda deprecated

You'd need the Java plugin. I don't know if that even exists for my browser.

I could provide an interpreter applet, but I don't know if it's worth the effort

2:58 PM

Yes, I remember popups saying that you needed a Java plugin for certain sites. But I haven't seen that in some time. So JavaScript is the only real option if you want something that can run on the users machine without any optional plugins?

pretty much, yeah, if you want wide support

they're working on other things too (e.g. WebAssembly), but it will take time

there's a javascript subset (asm.js) that runs faster in some browsers, but gwt doesn't support it, and I understand it's for languages with manual memory management

Dart is going to be the next JS.

@aditsu Yes. C/C++ can be compiled to asm.js using Emscripten

@aditsu IMHO the interpreters are fine as they are. There's always the Java interpreter if you feel the need for speed.

If you get bored, there are always tickets. :P

@aditsu WebStarts are still common

@georgeunix techcrunch.com/2015/03/25/…

3:05 PM

@aditsu “In order to do what’s best for our users and the web, and not just Google Chrome, we will focus our web efforts on compiling Dart to JavaScript,”

@georgeunix but then you might as well use the java interpreter

Scripting languages compiling to JS can be sometimes faster

@georgeunix yes, so it's not replacing javascript

@aditsu I suppose not.

I actually hadn't seen that article

@Dennis Yes, it certainly works fine. It just sounds kind of painful to write and maintain two versions. The only real limitations I had with the online CJam is for things that use a lot of memory. Or if I want to redirect the output to a file, like for the challenges that produce PPM images.

3:13 PM

Download output as a file would be a neat feature.

both interpreters are written in java, one is automatically transpiled to javascript :p

they share most of the code

@aditsu GWT doesn't uglify the output Javascript automatically?!

This ticket has been opened before and already has an answer. If those answers do not fully address your question, please open a new ticket.

it does

Well it hasn't this time – unless you've explicitly told it not to

Well, it has, sort of.

It hasn't put the code all on one line.

3:20 PM

isn't it ugly? cjam.aditsu.net/CJam/16B04846BE36B2751D84137290400A96.cache.js

Oh, OK.

Turns out Safari prettifies it again.

Sorry :/

don't you claim my code is pretty!

4

@Dennis hmm?

Well, it might be before it goes through Closure

@aditsu Don't feel bad, it looks plenty ugly to me! ;)

^_^

3:28 PM

@aditsu It's the PPCG text for dupes with some minor modifications. Not sure how I missed Martin's ticket.

That asm.js stuff looks kind of interesting. So you could write in C++, and let it generate something that runs in a web page.

using emscripten

Hence Qt4 is now available in Javascript online

@georgeunix link?

^ Safari made this up from your CJam JS

@aditsu news.ycombinator.com/item?id=5230534

@aditsu phoronix.com/scan.php?page=news_item&px=MTI3NDc

damn, that's pretty cool

3:33 PM

Yeah, the demos though: vps2.etotheipiplusone.com:30176/redmine/projects/emscripten-qt/…

KDE programs in JS!!!

yeah, that's what I'm talking about

@georgeunix So you use some option in clang (e.g. on a Mac) to produce IR instead of machine code? And then run that through emscriptem to produce JS?

Presumably.

IR > asm.js > JS

@georgeunix pretty heavy stuff though

Yeah.

On Safari it doesn't seem very heavy.

I haven't got a beefy computer

And it works OK

but takes a bit to download

3:39 PM

the kate demo is not working yet..

ah, it mentions a no-icon version and a bug report

that one works :)

@MartinBüttner Do you think a primality testing catalog would be a good idea? There seems to be no challenge that asks just for that and it would be useful to check if something counts as a programming language.