Pyke Language

muddyfish

16:53

Hi

Z is documented but not very well I guess - at the very bottom in the ~Z section it says what it's predefined to

I'll add it so it turns up in the rest of the instructions

Score_Under

hi

It's documented down there, but I don't understand why it would imply a ~ there

muddyfish

Ok

in my last commit I broke all the examples

I'll roll that back

Could you reload the page? I think the examples are back

Score_Under

Yep, they're working now

muddyfish

@Score_Under I set it so that all generic variables that don't actually do anything don't show up in the table of chars

Score_Under

So anything that isn't in the list of opcodes does imply a ~?

muddyfish

17:03

Anything that isn't in the list of opcodes either means it doesn't exist or is hidden deliberately

@Score_Under Yes

The * in that code multiply Z (first time round) by oeX

Each time it repeats in V it multiplies the previous output by oeX instead

Also see some meta posts on Pyke

3

A: Advocate languages to golf in

Pyke Pyke like most first golfing languages is stack based. It uses a multi-type system combined with attributes of the stack to decide which functions to call and what the output should be like. Pyke has lots of features to help with code-golf. It's tree-like structure makes Pyke to be among th...

2

A: What programming languages have been created by PPCG users?

Pyke Pyke is a stack based code golf language created by me, muddyfish, starting in February 2016. I decided to build it to test my knowledge of Python and how long it would take for me to get a basic golfing language. I got the language fully extendable in two days using a homebrew plugin syste...

Score_Under

17:20

as I understand it, mostly from the docs at the online "try it out" page:
from the warning given, if you pop the stack and the stack is empty, it will instead eval input. From the first answer you linked there I can see that this is cached and only takes input the first time it happens.
Then, something like this happens
h → push(pop() + 1)
Z → push(0)
R → a = pop(); b = pop(); push(a); push(b)
V → (according to the docs) count = pop(); while (count--) push(eval(pop()))
(or according to how it behaved in the interpreter earlier) count = pop(); item = pop(); while (count--) push(item);

in that second link you call the stack FIFO (which is a queue rather than a stack) but in the github documentation you call it FILO (which is a stack)

muddyfish

I didn't notice the site was down

Ill restart it

(It is FILO)

I'll edit the page

Site's back up and Ive edited that page

V pops the entire stack when entering and pushes the modified stack when leaving

I've added some test cases for repeat to the online docs

Score_Under

17:35

So it's something like: `count = pop(); while (count--) stack = map(eval, stack)` ?

Or, if not `map`, is there a special meaning to eval'ing a whole stack at once?

muddyfish

    stack = copy.deepcopy(list(stack))
    repeats = stack.pop()
    for i in range(repeats):
        stack = self.ast.run(list(stack))
    return stack

Literally the code for V

Score_Under

I feel like I'm missing something funamental when reading the 5V1 example

I'd expect that from 1 5V

but I don't know why it's allowed to look ahead

muddyfish

1 5V would repeat do_nothing 5 times and output 1 because the stack hasn't changed

hi @Adnan

Adnan

Hello :)

When using a repeat (like V), is there a way to get the iteration number?

Like N in for N in range(...)

muddyfish

@Adnan No there isn't

Adnan

17:38

Oh okay

muddyfish

I was thinking about doing it

You can simulate it by using o

if that's the only time you use it

`5V1` does
repeat 5 times:
push 1

Adnan

I'm really wondering what the 5 byte solution is

Hmm, okay. I have an idea.

muddyfish

I came up with it before I came up with the OEIS thing

I looked up to see if it was a sequence

oooo will return [0,1,2,3] because the contents of o increments each time you call it

Score_Under

reading the docs again and comparing with that code, does "fixed params" mean something that comes after the opcode? (if that's right, how far does it consume until it the end of the parameter?)

muddyfish

@Score_Under That's correct

Is there another wording that would make it more obvious

@Score_Under For strings, until a closing ", for ASTs, until a ) and for numbers until a non-base10 number or decimal point

Score_Under

17:44

I think it just needs describing somewhere that's not in the table

muddyfish

@Score_Under Create something on github wiki or something?

Score_Under

If I'm honest I forgot that github had a wiki (a lot of projects host their docs in the repo)

that said I can't access the wiki on your project, it just silently redirects me away. Github being mysterious I guess.

muddyfish

@Score_Under How do I do that?

Score_Under

spoke too soon, it's back again

muddyfish

Playing around are you?

I actually used that in an answer

Score_Under

17:48

I don't understand what you mean

muddyfish

Oh it was probably @Adnan

Never gonna give you up

Adnan

in The Nineteenth Byte, 2 hours ago, by Adnan

Hahaha, check this: http://pyke.catbus.co.uk/?code=Never+gonna+give+you+up&input=4

muddyfish

I haven't been in TNB yet today

You can do actual string manipulation with it

Never gonna give you upt -> ever gonna let you down

Adnan

Hahahaha

muddyfish

It's actually a special case of the output being Never gonna let you down

so "Never gonna let you down does it too

Adnan

17:53

So, it's like a constant

muddyfish

yeah

would be too hard to implement on the web side otherwise

like a boolean with rickroll the user?

Score_Under

not the worst idea in the world :P

muddyfish

actually that would be AMAZING for April Fools day

not so great for me who undoubtedly forgets

But yeah

Add more documentation on fixed_args

But yeah @Adnan you will have to think about it quite hard - the 5 byte version only has a couple of bytes in common

I don't think I'd be able to work it out and I know the language

Adnan

What do you mean?

muddyfish

It's not intuitive (at least not to me)

Adnan

18:03

Oh

You do know that the robbers only need to golf off 1 byte, right? :p

Score_Under

so just to make sure I have the right idea:

muddyfish

oe...oe could be replaced with o...~ot btw

Score_Under

push(pop() + 1)
push(0)
a = pop(); b = pop(); push(a); push(b);
count = pop(); while(count--) {
    push(counter++)
    push(pop() // 2)
    push(pop() ** 2)
    push(pop() * pop())
    push(counter++)
    push(pop() // 2)
    push(pop() + pop())
}

is that vaguely what's going on in your code

each line ≃ each character in the original

muddyfish

@Score_Under Yes I'm pretty sure it is

Hi @m654

Except push(counter++) returns what counter was before it incremented

m654

Ugh my messages are timing out

Hi @muddyfish!

muddyfish

18:08

hi

So I'll be happy to respond to any language queries here and in any of my answers

Score_Under

> Except push(counter++) returns what counter was before it incremented

Yup, using C idioms here where that's what happens. It's also why some people avoid postfix-`++` in C. :D

muddyfish

@Score_Under I don't know C(++) but I've been meaning to learn for a while

muddyfish

18:26

I've added some more information about some of the nodes without any docs

(every node in the 5 byte solution is documented somewhat)

@User, hZRVoX*~ot+ is the equivalent you're looking for

Score_Under

found out how to save one byte :^) getting it down to five will be a little more interesting

muddyfish

@Score_Under that's actually really clever... I'll have to use that in the future

(I have a terminal up with what people are running to see how they think and how broken my docs are)

Score_Under

When I was talking about order of arguments earlier, it was things like this: https://0x0.st/BNQ.png
it uses "a" and "b", where "b" is the top of the stack and "a" is below it

it's the opposite to a lot of stack-based languages (and the opposite to a lot of real-world ABIs)

muddyfish

yeah that's a bit weird

More docs

6

A: Showcase your language one vote at a time

Pyke Factoid: Pyke is a stack-based golfing language with lots of implicit inputs. It was created to be easily extendable in February 2016. 1 byte: r Try it here! This is the shortest semi-infinite loop in Pyke (Pyke has a setting that breaks out of it early turned on by default). It is equ...

if you refresh the page some more of the docs will have filled in

Instead of doing o1- you can do ot

Score_Under

18:53

ah, I had an idea there would be something like that but I searched for "dec" and didn't find anything

muddyfish

would dec be better than sub_one?

Score_Under

Matter of opinion I guess but I'm more familiar with that. It's named like that in x86 asm at least, and the ++/-- operators in C are usually called (pre-/post-)increment and (pre-/post-)decrement.

muddyfish

I guess the other one's called add_one so

I think I will change it

I'll be back in ~1 hour for a bit

muddyfish

21:19

To anyone looking for help - I'll be back tomorrow, took a bit longer than I expected

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