The Nineteenth Byte

Lembik

1:26 PM

hi all

Mayube

The ultimate regex password matcher: [A-Z][a-z]+[0-9]+\W*

New Meta Posts

0

Q: How can we get more feedback on our Sandbox questions?

Often, I have proposed a question to the sandbox and I never got any feedback on it; sometimes, I never got feedback until I had already posted the question. I want a way to fix this. I want Sandbox questions to get more recognition and more feedback so that we can have better end-result question...

Adám

@Mayube Explain.

Bruce Forte

Hey @Lembik, thanks for your tip with f m n a b as (m#n)a b! I always forget about that ^^

TheLethalCoder

@Adám Follow the link

Lembik

1:30 PM

it wasn't my tip @BruceForte !

Bruce Forte

wtf :S

Okx

@Mayube Improved: [A-Z]?[a-z]+[0-9]*\W*

Mayube

@Okx Also the linked answer specifically states exactly 1 uppercase

TheLethalCoder

@Okx I'd go for [A-Z]?[a-z]+[0-9]{0,2}\W*

Mayube

otherwise you might as well do [A-Za-z]+[0-9]*\W*

Bruce Forte

1:33 PM

True though! Seem to have mixed that up..

Mayube

@TheLethalCoder that wouldn't match mine though, which has 4 digits

Adám

.+

TheLethalCoder

@Mayube We want to allow the weaker passwords as well though for maximum safety...

Mayube

@TheLethalCoder [0-9]{0,2} does not allow weaker passwords than [0-9]*

Cows quack

[0-9] can become \d

TheLethalCoder

1:34 PM

@Mayube I thought it'd allow 0, 1 or 2 numbers?

Mayube

right, wheras [0-9]* allows 0 or more, meaning it also allows 0, 1 or 2 numbers, it just also allows more than that

TheLethalCoder

@Mayube So less numbers == weaker, right?

Mayube

in theory

TheLethalCoder

@Cowsquack \d allows numbers other than 0-9 so should be stronger though.

totallyhuman

Gvyf

Cows quack

1:36 PM

what other numbers does it allow?

Mayube

anyway, I'm off to do some work and listen to some Alternative Japanese Metal.

Have fun, fellow golfers

TheLethalCoder

Probably differs between flavours but see: stackoverflow.com/questions/6479423/…

musicman523

The best password regex: .*

TheLethalCoder

Essentially other languages digits as well

Mayube

@musicman523 adam already pitched .+, I don't know of any site that allows blank passwords

musicman523

1:39 PM

@Mayube Websites generally don't but you can have an empty passphrase on an RSA key, for example

TheLethalCoder

I say screw it and go for passphrases: [A-Za-z0-9 ]{8,}

Obligatory xkcd. (Someone had to post it...)

totallyhuman

We have a vote to reopen in the house

musicman523

To reopen what?

totallyhuman

Look at the user list

musicman523

Ah

Poke

1:47 PM

@TheLethalCoder have you read the flavor text

Lembik

how about this challenge? Whatever key I press, output its name

what do people think?

(this is to include prtscn, sysrq, scroll lock, etc.)

TheLethalCoder

@Poke I have...

Adám

@Lembik that'll be hard.

Lembik

@Adám hard is good. Impossible not so good :)

so .. how hard?

Mayube

@Lembik you'd need to explciitly list the "name" of every key, and possibly a keyboard layout, and it'd exclude a lot of languages, but yeah it could work

Poke

1:50 PM

@TheLethalCoder then you realize that the comic makes no sense

Adám

@Lembik Shift? ⊞ ? Pause?

Lembik

what is [tag:⊞] ?

what is ⊞ ?

Adám

@Lembik messed up markdown.

Mayube

windows key

Adám

@Lembik ninja'd

Lembik

1:51 PM

yes that too

TheLethalCoder

@Poke I wasn't saying it did... I was saying it was related to the discussion.

Mayube

Ctrl, Shift, Alt could be difficult

Adám

@Lembik What about combos? Shift+A?

Lembik

I suppose assuming a standard US layout "With the @ over the 2"

@Adám maybe miss out the combinations? What do you think?

Adám

@Lembik How about ⊞ + L ?

Cows quack

1:52 PM

I think Processing can do Ctrl, lemme check

Mayube

would Shift+2 be @ or Shift, 2 though?

I'd say ignore key combos

Lembik

ignoring

Mayube

and just literally output the keys pressed

Adám

Just return scan codes?

Mayube

in "real" languages (APL, C, C#, Java etc) it shouldn't be too difficult, but good luck doing it in Jelly or CJam

TheLethalCoder

1:53 PM

In C# if you subscribe to a key down event you'd get two events for Shift+2 (I think) so ignoring combos sounds good to me

Lembik

I have two windows keys

should they be different?

I mean will they give different scan codes?

Adám

@Lembik They have different scan codes.

Lembik

what are they used for?

I mean who uses the right Windows key?

Erik the Outgolfer

@dzaima where is the palenChars.txt file, you say?

Lembik

also what is the key between the right Windows key and the right Ctrl?

Adám

1:55 PM

@Lembik I've remapped it to AltGr because I keep hitting the wrong key.

Erik the Outgolfer

(sogl)

TheLethalCoder

The context menu one?

Adám

@TheLethalCoder No, I have both a RightWin and a ContextMenu

Cows quack

nvm, Processing gets 65536 for Shift, Ctrl, Alt, ... keys

dzaima

@EriktheOutgolfer here

Adám

1:57 PM

Bottom row: Ctrl Win Alt Space Win Alt Menu Ctrl

Erik the Outgolfer

you should move it to a more prominent place ;)

dzaima

still have to mix the SOGLOnline SOGL and SOGL V0.12 together

Erik the Outgolfer

oh yeah I forgot soglonline is the newest version...

what about the older versions? do you use them at all?

TheLethalCoder

@Adám Lembik said between the right Windows and right Ctrl so I said context menu. Isn't that what you're saying too?

dzaima

they're there for older programs

Lembik

1:59 PM

code-golf?

what do you think is best?

Erik the Outgolfer

@dzaima oh you don't want to search through commits right?

(btw v0.12 still mentions palenchars)

dzaima

@EriktheOutgolfer partly that, partly that nobody else would want to. Versions in SOGL change only when the change breaks some previous solution posted on PPCG.

@EriktheOutgolfer the chardefs is newer in SOGL V0.12 but palenChars.txt is in SOGLOnline, it's really confusing.

Adám

@TheLethalCoder My physical keyboard has the stated order, but my keyboard remapper has RightWin and RightAlt swapped.

TheLethalCoder

@Adám Ahhh okay

dzaima

The main problem with making V0.13 or something that is the SOGLOnline SOGL is that I've made so many changes that I don't even know if the Processing code even still works

Erik the Outgolfer

2:02 PM

well, I can still use web browser downloading it offline I suppose...right?

Lembik

posted

I am intrigued which languages will do well

any guesses?

Erik the Outgolfer

if python3 does it then probably jelly and 05ab1e can do it better

Mayube

I think APL will probably do it well

Erik the Outgolfer

that is they can compress python source code and eval

Lembik

oh can APL do this?

New Main Posts

2:03 PM

0

Q: What key did I press?

The task is to write code to identify which key is pressed on the keyboard. You can assume that only one key is pressed at a time and that there is a standard US keyboard layout. That is the layout with the @ over the 2. Your code should output a unique identifier for any key pressed. This inclu...

code-golf

Erik the Outgolfer

@NewMainPosts THAT'S FAAAST!

Adám

@Lembik We ship with a utility for this; ]KeyPress.

Lembik

@Adám who is we?

Adám

@Lembik Dyalog

Poke

Why is this challenge not closed? codegolf.stackexchange.com/questions/28672/…

Lembik

2:05 PM

interesting

Poke

@Dennis

Adám

@Lembik But it catches combos.

Jim

@NewMainPosts I think that is not specified well enough, it will end up with a lot of questions of the type: "Is this key included?".

It should have been sandboxed

Lembik

@Adám so what does it output if you press the Enter on the number pad?

Adám

@Lembik Input: ER, Char: 13, Key: 13, Shift: 0=[none]

@Lembik I think it just listens for a WinForms KeyPress Event.

New Sandboxed Posts

2:12 PM

0

A: Sandbox for Proposed Challenges

How close am I to a palindrome? code-golf number palindrome For the purpose of this question, a palindrome is a number that, if reversed, is equal to the same number. Your Task: Write a program or function that receives a number, and outputs the number that is closest to zero that must be ad...

Lembik

and what about the main Enter key @Adám ?

Adám

@Lembik Same thing.

Lembik

then that fails :)

Wheat Wizard

I've received some downvotes here but I don't know whats wrong. Whats wrong with the answer?

Lembik

@Adám I don't like to ask questions which are too trivial :)

Cows quack

2:14 PM

@Lembik I'm on a mac keyboard, is it okay if I don't output anything for F1 but output something for Fn+F1?

Erik the Outgolfer

@WheatWizard I think you're supposed to increment if odd, decrement if even

Lembik

@Cowsquack no! Why would you need to do that?

Wheat Wizard

@EriktheOutgolfer Thats what it does.

Cows quack

;_; that's what Processing does

Lembik

unless you tell me that no message is received at all my a mac when you press F1

@Cowsquack sorry no in that case

it's not meant to be trivial :)

Cows quack

2:16 PM

F1 by itself just lowers the brightness

Erik the Outgolfer

@WheatWizard oh you say it flips the last two bits?

Cows quack

but Fn+F1 doesn't, and this is what Processing detects

Erik the Outgolfer

that's not what the question asks for

Lembik

@Cowsquack ok .. but you still have to report that it was pressed :)

Erik the Outgolfer

x+1 isn't always x^3

Wheat Wizard

2:17 PM

@EriktheOutgolfer It is, you can do a few tests if you wish but it is the same.

Erik the Outgolfer

@WheatWizard for example, 00111111 -> 01000000 not 00111100

Lembik

I am surprised it has taken 15 minutes to answer my challenge :)

Wheat Wizard

@EriktheOutgolfer Works for me

Erik the Outgolfer

I don't think it just flips the last two bits

Wheat Wizard

Ok, I guess the explanation is wrong then.

dzaima

2:19 PM

@EriktheOutgolfer in your pull on SOGL the tab seems to be a space?

Erik the Outgolfer

ooh...ignore that pull

Wheat Wizard

@EriktheOutgolfer Thanks!

Adám

@Lembik OK, I asked our Chief Architect. If C# can do it, then Dyalog APL can too. It would seem from this that it is indeed doable.

TheLethalCoder

@Adám In C# subscribing to the KeyDown event like KeyDown += (s, e) => Console.Write(e.KeyData); returns Return for both Enter and num pad Enter for me. I can't see how to distinguish between the two. Though the Keys enum does contain Return and Enter.

Lembik

@Adám great!

I look forward to the answer

Adám

2:25 PM

@Lembik I don't think I can be bothered to write an answer though. It looks like all the special keys will need separate treatment. Ugh.

Lembik

@Adám that's terrible!

Adám

@Lembik Not APL's fault, more like .NET's fault.

Lembik

you really can't just output the scan codes?

msdn.microsoft.com/en-us/library/windows/desktop/…

there must be a language that lets you just read scan codes

surely

bash? :)

Adám

@Lembik C++

totallyhuman

in terms of golf, is there any reason to have both ints and floats and not just floats?

dzaima

2:29 PM

maybe

Adám

@totallyhuman Well, in principle, APL has just numbers.

musicman523

You may want integer division

Lembik

does xev|awk '/yc/{print$7}'|cut -d\) -f1 work for any linux users here?

Adám

@musicman523 But that could be a separate function.

dzaima

then you could repurpose get arrays/strings xth item for a float to something else

that's about all I can think of :p

musicman523

2:30 PM

@Lembik For me it looks like xev pops up an "Event Tester" window that doesn't do anything when keys are typed

Lembik

@musicman523 same with me

musicman523

Oh wait I just saw your comment about the values only appearing on exit

It does seem to work for me

Lembik

right but that's isn't what I wanted

musicman523

Except it duplicates responses

Lembik

I have clarified

New Main Posts

2:32 PM

0

Q: Is the number binary-heavy?

An integer is binary-heavy if it's binary representation contains more 1's than 0's, ignoring leading zeroes. For example 1 is binary-heavy, as it's binary representation is simply 1, however 4 is not binary heavy, as it's binary representation is 100. In the event of a tie (for example 2, with a...

code-golf number decision-problem binary

musicman523

@Lembik Personally I think that's okay, that may be a consideration you allow for

Lembik

I am not allowing it :)

musicman523

That is fine

But the only way to get around it in bash would be to fork processes and make a pipe

Which would be a huge pain

I'm not saying that's a good reason to allow it, though

Lembik

bash may not be the right tool.. shock! :)

dzaima

I just made by keyboard unusable.. lol

Lembik

2:36 PM

oops

I wonder if the JS answer really works

Cows quack

@NewMainPosts I get deja vu

Erik the Outgolfer

me too

Mayube

if it turns out to be a dupe feel free to hammer it

totallyhuman

Somebody please help this guy out

-1

A: Is the number binary-heavy?

Python 2, 77 bytes i=2 b=str(bin(i))[2:] print str(i)+"->"+b+"->"+str(b.count("0")<b.count("1"))

musicman523

Done

totallyhuman

3:06 PM

thanks

quick somebody give me a unicode character that could represent count instances of x in y

Mayube

c?

Erik the Outgolfer

@totallyhuman jelly has ċ@ so ċ is mine

Mayube

ñ

totallyhuman

@Mayube c is already chr(x)

@Mayube wait how does that represent it

Mayube

/shrug

Erik the Outgolfer

3:09 PM

you don't have taco script installed...

totallyhuman

fine i'll go with jelly's version

Erik the Outgolfer

I do ¯\_(ツ)_/¯

totallyhuman

i've sometimes hit enter so fast that tacoscript didn't register it ¯\_(ツ)_/¯

Erik the Outgolfer

wait who starred "me too"?

totallyhuman

shh don't talk about it

Erik the Outgolfer

3:10 PM

/shrug

@totallyhuman I need to otherwise it stays there >.<

and one exception often causes exception flood

Adám

@totallyhuman ⍷ like membership, but with a mark for counting

musicman523

@totallyhuman I think I figured out why he was confused - he read the format for the test cases and thought that's what the output format should be

Erik the Outgolfer

too late I think

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