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Bubbler

03:21

Postfix is a "syntactic" model and stack-based is an "evaluation" or "semantic" model. The two are essentially equivalent (minus syntactic words found in practical stacklangs).

9 hours later…

Adám

12:38

CMQ: I have to demo APL to a bunch of run-of-the-mill devs (think Python, PHP, Java, C,…), and they are probably especially interested in how they can use techniques learned from APL in their daily programming. Any recommendations or ideas?

Secret

12:56

Hey Adam, i saw an old video of you presenting the APLcart.info, so i tried it and there seems to be no example of a post request using the HttpCommand library, is there any online examples?

Adám

@Secret Check out xpqz.github.io/learnapl/http.html

Secret

Yes this is exactly the one i followed, i have no problem using the Get request but when i try a .Do 'post' i get all sorts of errors

Adám

Can you post (no pun intended) your code so we can have a look?

Secret

@Adám Okay so I have a url for a discord webhook and a body which is a message for a webhook , and after the body is created i try to send the post request like so; body ← '{"content": ' , kanye , ', "username": "Kanye West"}' ⋄ send ← hc.Do 'POST' url body

(Send is: [rc: ¯1 | msg: "Params is not a valid URLEncoded string"] after my attempt of postng)

Adám

What is the value of kanye?

Secret

13:05

a string - "We have to evolve"

with " as part of the string

and the whole body is: {"content": "We have to evolve", "username": "Kanye West"}

Adám

Note that it is asking you to URLEndcode the params, so how about trying:

send←hc.Do'POST' 'example.org' (hc.UrlEncode body)

Secret

Ahh thanks, now i just get Bad Request, but might have messed up setting up the webhook

How would one find all functions of httpCommand? i found a pdf which i didnt find a lot of help

Adám

@Secret HttpCommand.⎕NL¯3

Master Quiz

@Secret Usually it may be helpful ']map' command

Adám

That gives an overwhelming result with unimportant details.

@Secret Also, simply edit HttpCommands — it begins with a large comments section.

Secret

13:17

I acutally found the github repo and saw it, but i guess i must have missed the function i needed, thanks

PyGamer0

is the concept of rank in apl is similar to the concept to rank in linear algebra?

Secret

i assume the rank concept for J and Dyalog are the same, then a rank of a noun is the count of its axes. A scalar has rank 0, a list rank 1, a table has rank 2 and so on

Adám

@PyGamer0 No, APL uses the word "rank" for two things: the number of dimensions in an array, and the "scope" of a function or function application. LA uses the word for the maximal number of linearly independent columns of a matrix

(Oh, and of course Rank is an APL operator too.)

Secret

13:33

what is the term for stuff like ⍴ ⌈ ∩ and so on? Verbs? or

Adám

APLers tend to call them functions or primitive functions.

PyGamer0

14:27

@Adám ok

so is the rank operator hard to understand?

Adám

Basic functionality is actually very simple, assuming you understand the array model. Fully taking advantage of it can take some practice.

1 hour later…

Master Quiz

15:40

@Adám I've added what I've understood on the API page

Adám

Great!

Master Quiz

@MasterQuiz @Adám Can you help me with this?

Adám

@MasterQuiz TryAPL doesn't use ]box or ]rows

github.com/Dyalog/TryAPL/blob/master/TAE.apln#L223

Master Quiz

@Adám So I can't be able to have the entire result of, say, ⍳50 1?

Adám

No, not currently. It is intended as a way to try APL, not as a free number crunching service :-)

Master Quiz

16:01

So I have to do something like send a request to save a variable and change state, size and hash of the next requests?
Cause I need the ones in a picture like this https://tio.run/##SyzI0U2pTMzJT/9fkJms8KhtAhBPVFfAD9QV0FRoYapAU6KvEENAiT4Qx1CqRB9MxuBRYgOl7XAqsYGz7HAosYmPjwczgLQd@aYgiWM3BW4Pmk0kmoISGthMsXk0pQEDrUEiUZAdzkh@NKUJjAmkhUdTpoBNmoGu8P@jvqmgJGjzqLcBmMYedS4AJsr//wE, and wanted to let the user put an image to start the animation with

Adám

16:15

@MasterQuiz Either that, or encode the result in a way that makes it take up less space.

I could maybe also add a functionality to override the chopped display.

5 hours later…

Master Quiz

21:22

Why this gives 'DOMAIN ERROR: Invalid input source'?

`⋄ '[*]'⎕R' '⊢ ↑'This is a' 'Matrix '`

TryAPL

@MasterQuiz Did you forget a closing backtick (`⋄code`)? You can edit your message and I will edit my reply.

Master Quiz

@TryAPL I don't think I did

Adám

@MasterQuiz ⎕R can only work on scalars, vectors, and vectors of vectors.

@hyper-neutrino the bot reacts strangely on backticked code blocks. It should either ignore them or suggest removing the backticks:

`⎕←'test'`

TryAPL

@Adám Did you forget a closing backtick (`⎕←code`)? You can edit your message and I will edit my reply.

Master Quiz

⋄2+2

TryAPL

21:29

@MasterQuiz 4

hyper-neutrino

⎕←4

TryAPL

@hyper-neutrino 4

hyper-neutrino

⎕←4
⎕←5

TryAPL

@hyper-neutrino
4
5

hyper-neutrino

`⎕←'test'`

@Adám done

Adám

21:30

Great.

hyper-neutrino

that was quicker than I anticipated it'd be :)

Adám

⎕←'what do you make of this?'

TryAPL

@Adám what do you make of this?

Master Quiz

So also code that doesn't have quotes is executed without backticks?

Adám

@MasterQuiz I don't understand.

Master Quiz

21:40

@Adám The problem before was with the single quotes cause something like ⋄2+2 was executed correctly

TryAPL

@MasterQuiz 4

Adám

@MasterQuiz I don't think so. The only problem was that the bot reacted to code block lines beginning with `⎕← and `⋄ while not ignoring the `s.

TryAPL

@Adám Did you forget a closing backtick (`⎕←code`)? You can edit your message and I will edit my reply.

Adám

@hyper-neutrino ^ wat?

hyper-neutrino

...?

wut

Master Quiz

21:43

Something like backtick diamond 2+2 backtick doesn't give error

Adám

@hyper-neutrino None of my inline code began with ⋄ or ⎕← so what was the bot reacting to?

hyper-neutrino

> if "`⎕&larr" in x["content"]:

Adám

@MasterQuiz Inline? That should work.

hyper-neutrino

that's what it's detecting

i think I can just remove that check

the main issue is people forgetting to put any backticks at all, not forgetting to close them

Adám

Shouldn't it only look at the beginning of each inline code?

Master Quiz

21:45

@Adám Yes, it does. The error is thrown when someone writes backtick diamond 'Hi' backtick

Adám

⋄'hi' ← is backtick diamond 'Hi' backtick

hyper-neutrino

no, if it detects and `⎕← it assumes you forgot to close it

TryAPL

@Adám hi

hyper-neutrino

which I think isn't really all that useful so i've removed it

Adám

Checking that `⋄ (backtick backslash backtick diamond backtick) is ignored.

Master Quiz

21:47

@Adám I'm getting confused... Here it gave error

hyper-neutrino

yeah, I fixed it, lol

Adám

@MasterQuiz That was a code block. They don't need backticks at all.

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