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00:00 - 02:0002:00 - 03:0003:00 - 05:0005:00 - 08:0008:00 - 10:0010:00 - 16:0016:00 - 19:0019:00 - 20:0020:00 - 21:0021:00 - 22:0022:00 - 23:0023:00 - 00:00

LockOpeners
LockOpeners
3:00 AM
like lookahead syntax is <?before pattern> instead of (?=pattern) (is this one right?)
and character classes are <[...]> instead of [...]
 
El'endia Starman
El'endia Starman
@quartata @Downgoat - I'll write a blog post or two on Pytek's parser sooner or later. I'm hoping to finish the parser very soon. The gist, though, is that the actual AST is unknown at first, so all possible ASTs are explored. Each node has isPossible, which tells the parser when it itself is a possible node, and isComplete tells the parser when it's been, well, completed. At that point, the constructor is called and the node is added to the AST.
When there are multiple possibilities, the AST is duplicated and the parser moves ahead on all copies, independently.
 
LockOpeners
LockOpeners
Abstract Syntax Tree
 
El'endia Starman
El'endia Starman
The shunting yard algorithm (well, a modification) is used for operators to ensure they get the proper children.
lol
 
Chris Jester-Young
Chris Jester-Young
@El'endiaStarman I've used shunting yard in the past, but these days I'm too lazy to use it.
 
El'endia Starman
El'endia Starman
@ChrisJester-Young How else do you parse infix operators? o.O
 
Chris Jester-Young
Chris Jester-Young
3:07 AM
 
El'endia Starman
El'endia Starman
@ChrisJester-Young Oh, you get another language to do the dirty work for you? -_-
 
quartata
quartata
Hey, Bison is great
 
Chris Jester-Young
Chris Jester-Young
@El'endiaStarman Hey, it's an EDSL, so it's all inline in the code. ;-)
 
Helka Homba
Helka Homba
^ Posting that to see if people will be irked or accepting.
 
Chris Jester-Young
Chris Jester-Young
@HelkaHomba What do you mean?
There's nothing unfactual about that paragraph.
(except that Dapper isn't the only thing used for data access; some of the older code use LINQ to SQL.)
 
Helka Homba
Helka Homba
3:09 AM
@ChrisJester-Young Oh, you know - people hate Microsoft or Visual Studio for such and such reason.
 
quartata
quartata
@HelkaHomba ewwww asp.net
 
Chris Jester-Young
Chris Jester-Young
@HelkaHomba I don't hate VS at all. :-)
@quartata It's ASP.NET MVC, not plain-jane ASP.NET.
 
quartata
quartata
That's a little better
 
LockOpeners
LockOpeners
Concatenative++
 
quartata
quartata
I thought you guys used PHP
 
Chris Jester-Young
Chris Jester-Young
3:11 AM
@quartata :trollface:
 
quartata
quartata
No, really.
 
Daniel M.
Daniel M.
The IDE is at least set to use Comic Sans, right?
 
Chris Jester-Young
Chris Jester-Young
@DanielM. No.
 
LockOpeners
LockOpeners
wingdings actually
 
Chris Jester-Young
Chris Jester-Young
I believe the default is Consolas and nobody bothers to change it.
 
Daniel M.
Daniel M.
3:12 AM
@ChrisJester-Young I thought it's courier or courier new
 
Chris Jester-Young
Chris Jester-Young
@DanielM. No way.
 
LockOpeners
LockOpeners
consolas is the go-to windows mono font
 
Daniel M.
Daniel M.
@ChrisJester-Young Or maybe I've been using eclipse too much for my own good.
 
LockOpeners
LockOpeners
if you don't feel like getting something else
 
Helka Homba
Helka Homba
@LockOpeners After getting used to some of the crazy encodings on PPCG, wingdings actually looks pretty sane.
 
LockOpeners
LockOpeners
3:14 AM
lol
 
Helka Homba
Helka Homba
half of them are numbers and arrows - quite useful
 
Eᴀsᴛᴇʀʟʏ Iʀᴋ
Eᴀsᴛᴇʀʟʏ Iʀᴋ
actually true.
 
Doorknob
Doorknob
3:28 AM
@Sp3000 @Dennis @aditsu Congrats on the 100 score on GCJ!
 
Dennis
Dennis
:)
 
LockOpeners
LockOpeners
\o/
 
Daniel M.
Daniel M.
@HelkaHomba Just had a challenge idea about wingdings
 
New Sandboxed Posts
New Sandboxed Posts
0
A: Sandbox for Proposed Challenges

Daniel M.Help! Everything is in Wingdings! code-golfimage-processing Your task is to write a program or function that converts wingdings to a readable font. The input to the program will be the path to a png file with between 1 and 10 wingdings characters. Your output should be the message contained in...

 
Dennis
Dennis
Code Jam has too few test cases, cumbersome I/O and C had a loophole. We should really point them to Meta.
 
Eᴀsᴛᴇʀʟʏ Iʀᴋ
Eᴀsᴛᴇʀʟʏ Iʀᴋ
3:31 AM
What loophole?
 
Kenny Lau
Kenny Lau
@Dennis Do you remember a challenge in which the python solution is to hash the image?
 
Dennis
Dennis
Doesn't ring a bell.
 
Kenny Lau
Kenny Lau
@Dennis any challenge related to images
 
LockOpeners
LockOpeners
Loophole?
 
Downgoat
Downgoat
@Dennis loophole?
 
Sp3000
Sp3000
3:32 AM
@KennyLau Flags
 
Downgoat
Downgoat
how?
 
Kenny Lau
Kenny Lau
@Sp3000 yes
@Sp3000 care to link?
 
Dennis
Dennis
The exact input was known before the timer started, so you didn't have to worry about anything but numbers of 16 or 32 digits. 
#!/usr/bin/env python3

print('Case #1:')
input()
N, J = map(int, input().split())

for i in range(J):
	half = bin(2 ** (N // 2 - 1) + i * 2 + 1)[2:]
	full = half * 2
	print(full, *[int(half, base) for base in range(2, 11)], sep = ' ')
(Now I'm wondering what the sep = ' ' was for. I think that's the default value.)
 
Kenny Lau
Kenny Lau
@Sp3000 found it
16
Q: Fun with flags!

Dr Green Eggs and Ham DJWrite a full program with a source code of 256 bytes or less that looks at an image of a flag and determines what country that flag is from. A zip file containing the 196 different flags in the challenge can be downloaded from here. Source: [Flagpedia]. These 196 flag images are the only inputs y...

code-challenge kolmogorov-complexity image-processing test-battery
 
LockOpeners
LockOpeners
nice
Yeah Codejam has way too few test cases IMO
Not that the pancake one was hard
but
it had 5 very short test cases
 
Dennis
Dennis
3:38 AM
Very annoying, but probably intentional.
 
LockOpeners
LockOpeners
I wish then they have limits from 1 - 100, they'd give test cases involving more than the bottom 3 of those numbers
Looking at you D
 
Jester Tran
Jester Tran
Hi
@QPaysTaxes I'm going to ask something out of topic as always
 
Downgoat
Downgoat
Would anyone here happen to know an answer to this:
0
Q: Grunt + Babel successfully runs but doesn't do anything

DowngoatI'm rather new to grunt/npm but after reading up the docs. I have made myself a package.json and a Gruntfile.js. Here's my folder structure: / |- src |- myfile.es6 |- anotherfile.es6 |- etc. |- Gruntfile.js |- package.json What I have Here's my Gruntfile: module.exports = funct...

node.js npm gruntjs babeljs grunt-babel
 
Sp3000
Sp3000
@KennyLau Yeah that's the one I had in mind, sorry was busy
@LockOpeners Test cases aren't about length, it's about covering all [bc]ases
 
Downgoat
Downgoat
@QPaysTaxes :D
 
Jester Tran
Jester Tran
3:49 AM
@QPaysTaxes I always begin by vanishing my expectations when in inappropriate chat rooms haha. So on debate.org a (forum) website where you do formal debates, I was noticed by some dude because he liked my ideas and how I expressed it. Imo, my performance was horrific.. anyway, he wants me to help with with a start-up blog on topics including business, economics, politics, etc.. seems sketchy
Open to all opinions
Thanks. What do you mean by "wait for the check to clear"?
 
Mama Fun Roll
Mama Fun Roll
10
A: Showcase your language one vote at a time

Mama Fun Roll𝔼𝕊𝕄𝕚𝕟 Length 10 Snippet ɟ⍞#rœэ¡²Ĩċ Here's a really nasty infinite loop. It uses jQuery to press the "Run" button, which will execute the code that presses the "Run" button, which will execute... You get the idea. Even worse, it's impossible to stop without force-quitting Firefox itself, ...

 
Chris Jester-Young
Chris Jester-Young
@JesterTran There is a period of time where a cheque can be dishonoured.
 
Sp3000
Sp3000
@QPaysTaxes ^...t'(?<=(?=[WHACK])[QWERTY]ha..)s\swr..(?<=on)g\?$
 
Chris Jester-Young
Chris Jester-Young
@JesterTran You want to make sure that that time has passed, that the cheque hasn't been dishonoured.
 
Mama Fun Roll
Mama Fun Roll
Just finished updating the ESMin showcase!
Also, the length 10 snippet is pretty cool IMO.
 
Jester Tran
Jester Tran
3:53 AM
@ChrisJester-Young I see, thanks.
Suppose it's going fine and he wants to send money. What's the best medium? PayPal?
 
Downgoat
Downgoat
@MamaFunRoll downgoating because you used jquery
 
Jester Tran
Jester Tran
@QPaysTaxes and.. I contacted him through skype on dummy acc. No harm?
@QPaysTaxes fake
 
Mama Fun Roll
Mama Fun Roll
@Downgoat I cri
 
Jester Tran
Jester Tran
@QPaysTaxes Can you identify some devastating consequences that could occur during this thing I'm doing?
 
Downgoat
Downgoat
@MamaFunRoll -1 for no "evry tiem"
 
Sp3000
Sp3000
3:58 AM
@QPaysTaxes Was lazy :P
 
Helka Homba
Helka Homba
I feel like a phishing scam would come up with a different idea that a "startup blog". Not exactly the common get rich quick scheme.
@QPaysTaxes Most likely case: He's just some teenager who wants to get famous online by writing a blog and having other people help.
 
Jester Tran
Jester Tran
Still suspicious so I'll try to mask my identity fully by changing the way I type
haha
So if he wants to send me money, is PayPal the best?
@QPaysTaxes Nah
 
Helka Homba
Helka Homba
@JesterTran You can't be serious. Figuring out the identity of many people here on PPCG is not at all difficult, but you don't hear about @MartinBüttner getting kidnapped or anything.
 
Downgoat
Downgoat
@Downgoat you are an idiot
2
 
Daniel M.
Daniel M.
@QPaysTaxes If you want it to be as not-suspicious as possible, use Bitcoin.
 
xsot
xsot
4:10 AM
@Dennis I'm pretty sure that 'loophole' was intentional. This isn't the first time a problem could be cheesed with precomputation.
 
El'endia Starman
El'endia Starman
@QPaysTaxes Hah, that's cool.
 
Dennis
Dennis
@xsot All the things I mentioned were intentional. I was just comparing them to PPCG.
 
xsot
xsot
I think the cumbersome I/O can be excused given that it's likely designed for ease of judging.
 
Dennis
Dennis
Oh, all those things are prefectly appropriate for Code Jam.
 
Mars Ultor
Mars Ultor
:D everyone passed the qualifier
 
El'endia Starman
El'endia Starman
4:20 AM
I'd expect nothing less from the PPCG group.
Seriously, we basically do Code Jam all day e'rry day... :P
And invent programming languages to do it more!
 
Mars Ultor
Mars Ultor
@El'endiaStarman I'd imagine Pytek would be a very good Code Jam language when it's finished
 
El'endia Starman
El'endia Starman
Oh yeah, probably.
Good thing I'm probably gonna participate next year. :D
 
Dennis
Dennis
Since speed seems to be quite important, I should probably switch to a language I'm more comfortable with...
 
Downgoat
Downgoat
@Dennis Jelly?
you can have the shortest code in Code Jam
@MarsUltor I don't think I did
I forgot to do enough stuff
 
Mars Ultor
Mars Ultor
@Downgoat Oh
 
Dennis
Dennis
4:23 AM
Writing Jelly isn't exactly easy. CJam would be a better choice, I think.
 
Downgoat
Downgoat
@Dennis still, you would probably have the shortest code
 
Mars Ultor
Mars Ultor
@Downgoat No, he wasn't trying to golf it
 
Dennis
Dennis
True, but that has no impact on the score. Speed does.
 
Mars Ultor
Mars Ultor
Yeah
@Dennis Only if you are confident your answer works
People have gotten an answer in in <3 mins
 
El'endia Starman
El'endia Starman
symbols = {}
tobedef = {}
currChild = [0]
currNodes = [root]
currScope = [0]
currValue = [[]]
I am unreasonably pleased with the variable name lengths. :P
...what? o.O
 
Kenny Lau
Kenny Lau
4:28 AM
I literally just answered A and B
 
El'endia Starman
El'endia Starman
Readable code is an absolute must for the Pytek interpreter. :P
 
Kenny Lau
Kenny Lau
and I got qualified
what?
 
El'endia Starman
El'endia Starman
30 points is enough for qualification.
 
Kenny Lau
Kenny Lau
how many points for each?
 
El'endia Starman
El'endia Starman
They just want to make sure there's a point to letting you compete. :P
 
Downgoat
Downgoat
4:28 AM
def a := 3;
if true {
    a = 2
    print a // what should print here?
}
print a // what should print here?
can someone tell me how blok-scoping should work in theabove exmpale
 
Dennis
Dennis
@MarsUltor True. But I'm very familiar with CJam (~500 PPCG answers), and it's more difficult to mess stuff up when using a built-in. All tasks of the qualification round used either base conversion or run-length encoding, so writing those submissions in CJam would have been a lot easier.
 
El'endia Starman
El'endia Starman
@QPaysTaxes Not yet. Closest thing to docs at the moment is this: syntax spec (draft).
 
Doorknob
Doorknob
@Downgoat 2, 2
 
El'endia Starman
El'endia Starman
@KennyLau It should say it at the top of the question, I think.
 
Doorknob
Doorknob
what else would it print?
 
Mars Ultor
Mars Ultor
4:29 AM
@Dennis 500? Wow.
 
Downgoat
Downgoat
@Doorknob 2, 3
 
El'endia Starman
El'endia Starman
@QPaysTaxes Python.
 
Mars Ultor
Mars Ultor
@QPaysTaxes Python
 
Downgoat
Downgoat
@QPaysTaxes wait really???
 
El'endia Starman
El'endia Starman
@Downgoat If conditionals never create new scopes.
 
Dennis
Dennis
4:30 AM
@MarsUltor 506 to be exact.
 
Downgoat
Downgoat
@El'endiaStarman really?
 
Doorknob
Doorknob
@Downgoat that wouldn't make sense
why would you not be allowed to modify existing variables
 
Mars Ultor
Mars Ultor
@Dennis That's around half your answers
 
Doorknob
Doorknob
is everything constant by default?
 
Downgoat
Downgoat
variables declared within conditionals should be block-scoped
e.g.
 
El'endia Starman
El'endia Starman
4:30 AM
@QPaysTaxes Haha. I'm only allowing quartata to help, and even then, I'm not letting him work on the parser.
 
Downgoat
Downgoat
if true {
    def a := 3
    print a // this will obviously print 3
}
print a // shouldn't this throw a reference error?
I am confused
 
Doorknob
Doorknob
@Downgoat yes
 
Downgoat
Downgoat
nevermind
 
Mars Ultor
Mars Ultor
@Downgoat ?
 
El'endia Starman
El'endia Starman
He'll be helping with everything else though, and @quartata has been invaluable with regards to suggesting, criticizing, and otherwise evaluating ideas.
 
Dennis
Dennis
4:31 AM
@MarsUltor Yup. Since aditsu introduced CJam to PPCG and before I created Jelly, I used it almost exclusively.
 
Downgoat
Downgoat
@El'endiaStarman I'm also good at criticizing ideas
 
Mars Ultor
Mars Ultor
is really bad at criticizing
 
El'endia Starman
El'endia Starman
@QPaysTaxes Haha, I've had basically no formal training either. :P
I'll keep you in mind when it comes time to test the language.
 
Doorknob
Doorknob
@MarsUltor nice, congrats on the 100 score for GCJ as well
 
Mars Ultor
Mars Ultor
@Doorknob Thanks
 
El'endia Starman
El'endia Starman
4:34 AM
Anyway, re: scopes, the rule I'll be using for Pytek is: only functions create new scopes.
 
Downgoat
Downgoat
@El'endiaStarman WHAT
that's what JavaScript does...
 
El'endia Starman
El'endia Starman
@QPaysTaxes How so?
 
Downgoat
Downgoat
and everyone hates JS for doing that...
 
El'endia Starman
El'endia Starman
@Downgoat And, so far as I can tell, same goes for Python.
 
Downgoat
Downgoat
really?
 
Mars Ultor
Mars Ultor
4:36 AM
JS has let, for block scoping
 
El'endia Starman
El'endia Starman
>>> x
Traceback (most recent call last):
  File "<pyshell#14>", line 1, in <module>
    x
NameError: name 'x' is not defined
>>> if True:
	x = 3
elif False:
	x = 5


>>> x
3
@QPaysTaxes Yes.
 
Doorknob
Doorknob
@Sherlock9 congrats to you too for the 100 on GCJ :)
That makes 5 PPCG users so far
 
El'endia Starman
El'endia Starman
No. In fact, Pytek will be even more flexible when it comes to defining variables. It'll be possible to define a variable in terms of other variables that are defined later (though in the same scope) and have it work.
 
Mars Ultor
Mars Ultor
@Doorknob Can you add a Score column?
 
Doorknob
Doorknob
@MarsUltor just add everybody to your friends list :)
 
Mars Ultor
Mars Ultor
4:38 AM
@Doorknob I did
 
Downgoat
Downgoat
I tried GJM but they disqualified me because I wrote all my code upside-down
 
El'endia Starman
El'endia Starman
@QPaysTaxes It'll be on GitHub eventually, don't worry. :P (I'm working on it now, actually.)
 
Mars Ultor
Mars Ultor
@QPaysTaxes Meaning variables are resolved when they are accessed, I think
 
Doorknob
Doorknob
@MarsUltor then there's already a nifty chart you can use
 
El'endia Starman
El'endia Starman
@QPaysTaxes Yes.
I am also planning on making it possible to use mutable types as keys in dictionaries, unlike Python, which only allows hashable immutable objects.
@QPaysTaxes Did I not say that in the spec? I was planning on that too.
 
Sp3000
Sp3000
4:50 AM
@El'endiaStarman How on earth would that work efficiently? o_O
 
El'endia Starman
El'endia Starman
@Sp3000 I'll hash when possible and just do a normal search otherwise.
@QPaysTaxes I'm actually planning on allowing it even when the hash changes.
Computers are constantly getting faster. It'll be more important to have an easy-to-use language than a totally efficient or fast language.
Maybe I'll add a flag you can use so the interpreter tells you when there are possible inefficiencies.
 
Mars Ultor
Mars Ultor
@El'endiaStarman Like Python
 
El'endia Starman
El'endia Starman
Yep.
 
LockOpeners
LockOpeners
gotta have easy to use totally efficient
 
Mars Ultor
Mars Ultor
@El'endiaStarman Maybe you can add more flags to disable certain inefficient features?
 
El'endia Starman
El'endia Starman
4:54 AM
@MarsUltor I could do that, yeah.
 
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