The APL Orchard

Which OS is this? Linux?

its wsl

so yes

ooboonut

@nathanrogers Does ⎕SH'set' contain the variable?

ok no, this appears to be returning windows stuff

PATH contains the PATH contents of my windows PATH variable

12:42 AM

Well, if your environment variable isn't visible to the APL process, then there's not much I can do.

but ⎕SH 'printenv' gives me what I want

OK.

thanks

Maybe ⎕SE.Dyalog.Utils.Config should use printenv instead of env

for linux sure

12:48 AM

Funny, on my WSL their outputs are identical. I'd appreciate a short description of when they differ.

Q: What is the difference between 'env' and 'printenv'?

What is the difference between the two commands env and printenv? They both show the environment variables, and the output is exactly the same aside from _. Are there any historical reasons for there being two commands instead of one?

environment-variables

@Bubbler I just read through all of the answers there, and I still don't see how they would give significantly different results.

Also found this (no answers, but comments seem to explain the phenomenon)

@Bubbler That seems to be due to Eclipse being a child of a different process than the shell. However, here, we're talking env and printenv giving different results from identical shells that are both children of the same process.

@Adám how to print newline?

⎕←'aaaaaaaaa\n'

TryAPL

12:58 AM

@nathanrogers Did you forget to add backticks around your code (`⎕←code`)? You can edit your message and I will edit my reply.

⎕UCS 13 or something?

@nathanrogers Yes. Depending on which newline character you are looking for (there are quite a few in Unicode).

i want \n specifically

That's ⎕UCS 10

This one is fun.

OH NO

dyalog's output is going to stderr......

1:05 AM

@nathanrogers Is your server=whatever preceded by export or not?

but I found it in printenv

oh this is not good at all

why is the output going to stderr

Are you using ⍞ to print something?

this is the giant header that dyalog prints out on startup

it gets dumped to stderr

so I'm trying to catch stderr and handle it, and this breaks my whole program. I can add a special exception for dyalog, but that's just silly

I could also just dump stderr for this command

but still annoying

Oh, that part

-b: suppress banner in the session

might help

oh nice

can i do -sb or -s -b

1:17 AM

I'd guess you should -s -b because +s is also a thing

Andrew Sengul: April, an APL compiler for Common Lisp

1:31 AM

►

in case anyone hasn't seen or heard of april, or who wants to watch a talk on APL stuff

2:15 AM

april was quite a hot topic earlier

i think wezl posted this video earlier

when earlier?

we got an april bot in the discord to test out april stuff

oh but you're in the discord...

I get confused with the name :/

5 hours later…

7:24 AM

Google search is so annoying

when i ask for .NET dyalog it gives me a pdf from 14.0

rak1507

7:52 AM

@Adám which links to help.dyalog.com/15.0/Content/DotNet/Overview/Introduction.htm which is 15.0?

@rak1507 Oh right. Grrrr. Well, at least we have a plan for fixing that.

rak1507

ah that's good, I've basically stopped using google for APL stuff, ]help is generally more useful it seems (for getting the current version)

Yup, that's what I use too (and why I made it).

Q: How can I mask the scan operator in APL?

8:14 AM

@Adám thanks this is much better

Stack Exchange Feeds

8:49 AM

Assuming I have an array N ← 0 0 0 1 1 1 0 0 1, how can I apply the scan \ to achieve the array 0 0 0 1 2 3 0 0 1? +\N gives me 0 0 0 1 2 3 3 3 4 which is not what I want. +\¨⊆⍨N gives me | 1 2 3 | 1 | which is closer, but then I lose the positions. Is there a way to carry the original values in ...

apl dyalog

4 hours later…

1:16 PM

Session file C:\Users\raghu\Documents\Dyalog APL-64 18.0 Unicode Files\def_us.dse saved Fri Sep 17 18:46:20 2021
Can't save - file could not be created.

why am i getting this on the windows ide?

@Razetime What is your current directory? ]cd

C:\Windows\system32

You need to run in admin mode to write there, but you probably don't want to write there.

ah i see

where do i set start directory

do I just ]cd to there and save on exit