The Nineteenth Byte

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AviFS

00:40

Holy hell, nice Area 51 meta post @lyxal. You really blew the consensus for PLD&I out of thin air with that lawyer-level proposal.

lyxal

heh, I tried my best :p

Sandbox Posts

00:54

A: Sandbox for Proposed Challenges

Guess The Array code-golf interactive You are given a system with a hidden permutation of the numbers 1, 2, 3, ..., n. Your task is to guess this permutation by asking the system a series of questions. Each question consists of providing the system with a permutation of the numbers 1, 2, 3, ..., ...

1 hour later…

lyxal

02:10

@RydwolfPrograms I don't know the rules for meta, but I do know you are allowed to make deadlineless bounties for answering in languages

New Posts

02:27

Q: Guess The Array

You are given a system with a hidden permutation of the numbers 1, 2, 3, ..., n. Your task is to guess this permutation by asking the system a series of questions. Each question consists of providing the system with a permutation of the numbers 1, 2, 3, ..., n. The system will respond with the le...

5 hours later…

Tsumiki Miniwa

07:40

A: Implement Minceraft

Minecraft, 358 293 277 276 bytes Implementing Minceraft in Minecraft Should be run as a set of commands in game. Should be run on a fresh superflat (redstone ready) world. Byte count is the amount of characters you need to type, including newlines. /scoreboard objectives add s dummy /summon bat /...

So I have a suggestion for how to improve this answer... where do I put it?

The standard of answer "in the comments/replies/whatever" doesn't work because you need 50 rep to do that, and I don't.

emanresu A

Yes you do ;)

Tsumiki Miniwa

If you'd like, I can send a picture of me clicking on "Add a comment" and it says "You need 50 reputation to do that".

I think it means 50 CGSE rep, it probably says I have 70 rep here because it's including some rep from the rpg stackexchange

emanresu A

Check again ;)

Tsumiki Miniwa

Ah, it updated. Thanks.

emanresu A

Alternatively, it's generally fine to post it yourself. The user who posted that answer has been inactive for three months.

Tsumiki Miniwa

07:49

Honestly, I didn't even notice the post was from 2021. But in that case, I'll post it myself.

Unrelated String

08:31

how substantial is the improvement

like is it a handful of basic golfs or is it some serious insight that happens to use a shared skeleton

oh i see your comment

yeah wow that's... hard to make a call on lmao

mousetail

Post a new answer, get upvotes on it, use that rep to comment, then delete your answer /s

Unrelated String

true

...i remember when i actively fucked with minecraft commands a couple years back when they were borderline unusable for anything interesting

now that they actually are more powerful i'm just fucking scared

mousetail

09:40

def parse(x):
    bot_name = re.search(
        r'^class +([A-Z]\w*)(\(.*\))?:', x, re.MULTILINE)

    if not bot_name:
        raise ValueError(f"Cannot parse bot {x}")

    bot_class = []
    exec(
        x+"\n\nbot_class[:]=["+bot_name.group(1)+']\n',
        {},
        {"bot_class": bot_class}
    )

    return bot_class[0]

Guess what this does

lyxal

09:53

Get the class object of a bot?

mousetail

Yep, but with regex. The best tool for parsing code

lyxal

A little trolling

mousetail

This fixes it but I'm sure another way can be found

lyxal

doesn't seem to fix it

wrong link?

mousetail

def parse(x):
    bot_name = re.search(
        r'^class +([A-Z]\w*)(\(.*\))?:', x.replace("\\\n",""), re.MULTILINE)

    if not bot_name:
        raise ValueError(f"Cannot parse bot {x}")

    bot_class = []
    exec(
        x+"\n\nbot_class[:]=["+bot_name.group(1)+']\n',
        {},
        {"bot_class": bot_class}
    )

    return bot_class[0]

lyxal

10:03

that still gives the same error

there is a change

but yeah it still errors

mousetail

tio.run/…

lyxal

ValueError: Cannot parse bot class\
Trolling:
  def __init__(self):
    print("a little trolling")

a_little = Trolling()

is that intended?

mousetail

Oh I see

Wait your code isn't actually valid, it's missing any kind of whitespace between the class and it's name

because the way tripple quoted strings are parsed

This works though: tio.run/…

lyxal

tio.run/…

I don't know whether to be troll facing or downright disgusted at that

mousetail

Super easy fix though tio.run/…

lyxal

10:14

:+1:

mousetail

Fan of using a literal tab inside a regex

lyxal

underscore at the start of class names

is that a problem?

mousetail

Oh and lower case letters at the start of class names

I'm just going to enforce proper python class name conventions :)

lyxal

fair call

mousetail

This is what is looks like rn

lyxal

10:17

Looking good

I can't think of anything else that could be a problem with the regex so hopefully that'll be good to go too

oh nevermind I have

unicode normalisation

mousetail

... well that's not going to be able to be fixed easily

lyxal

unicodedata.normalize

docs.python.org/3/library/…

normalise the string before you regex search it

very simple

mousetail

What if the class name contains Unicode symbols? Will it match when I assign it

lyxal

exec would also normalise right?

mousetail

Well if I normalize before exec that would also effect the contents of strings etc. and effect the behavior of the code potentially

lyxal

10:23

no I mean exec itself would normalise, wouldn't it?

mousetail

Hmmm I guess so

lyxal

it do

mousetail

The entire concept is so cursed

lyxal

it sure is

but it makes for good restricted source answers :P

mousetail

Do you happen to know what normalization form should be used?

lyxal

10:28

NFKC

A: Does Python forbid two similarly looking Unicode identifiers?

PEP 3131 -- Supporting Non-ASCII Identifiers says All identifiers are converted into the normal form NFKC while parsing; comparison of identifiers is based on NFKC. You can use unicodedata to test the conversions: import unicodedata unicodedata.normalize('NFKC', '𝑓') # f which would in...

found from

A: Tips for restricted source in Python

Avoid "normal" letters Identifiers are normalized by the Python 3 parser. This implies that cursive (Unicode) letters such as 𝓪𝓫𝓬𝓓𝓔𝓕 are interpreted as their ASCII-compliant equivalents abcDEF. So the following code works (as was exploited here): 𝓝=123 𝓹𝓻𝓲𝓷𝓽(𝓝) Python versions in wh...

mousetail

А = 42
print(A)
# => NameError: name 'A' is not defined

lyxal

thanks python

very cool

mousetail

In my language identifiers are going to be rendered with the system font to determine equality.

Depending on the font installed l and I might or might not be the same variable

lyxal

I'm calling the court.

mousetail

Jokes on you my ban on creating new languages has ended

lyxal

10:41

5 hours later…

Ginger

15:19

@lyxal I do not like this image

caird coinheringaahin g

15:55

@lyxal the court sits in judgment

mousetail

16:24

My ban expired last week due to a bug in the courtrooms data management system (they used a language I designed). So I'm free now.

I rest my case

Bbrk24

17:18

What?

Oh you're kidding me, there's planned maintenance all day today

Tsumiki Miniwa

18:09

@UnrelatedString Honestly, I'm not so sure. I can't find a good way to do string concatenation, or input strings from cin.

Unless you mean in the context of Minecraft itself what can be done (ie make boss fights, dungeons, arenas, etc.) then yeah, it's getting very impressive though there's still some features missing. Typically I say "there's no way to deal a custom amount of damage to players", but with the /damage command (upcoming either 1.19.4 or 1.20) that's changing.

mousetail

18:34

Now it's down entirely :/

Bbrk24

19:25

@TsumikiMiniwa Speaking of Minecraft commands: Why did they remove the testfor family of commands? I'm sure there's some way to reproduce the effect with modern commands but I have no idea how

4 hours later…

Sandbox Posts

23:52

A: Sandbox for Proposed Challenges

Is it traversable? code-golf decision-problem array Imagine that a list of integers describes the heights of some two-dimensional terrain. Stamina: [ 4 4 4 4 4 4 3 3 3 3 2 2 2 - ] O /|\ / \ +---+ +---+ ...