jprez VS data_jd

I don't know if this counts as major, but I work on a presentation tool written with J and Godot. It's a "time travelling" REPL recorder built atop a console widget library. The Godot integration is written in rust (so also a start on rust integration). Godot provides the ability to sync audio and arbitrary animations/graphics with the console animations.

https://github.com/tangentstorm/jprez

I'm working on an outliner/repl presentation tool (for programming videos) in J, and I started livestreaming the process for an hour each morning.

If you've ever been interested in learning J (and you're up at this hour), come by and say hello. :)

The code I'm working on is here:

https://github.com/tangentstorm/jprez

And if you can't make it but are interested in the stream, past episodes are on youtube:

https://www.youtube.com/playlist?list=PLMVwLeG3bKmmctpRZt7u7...

But to answer your question: I have only the barest sketch of documentation so far: https://github.com/tangentstorm/jprez/blob/main/README.md

I suspect the J package Jd is probably the most non-trivial public codebase. I don’t love the coding style (functions are long and scripted) and it doesn’t make use of newer lambda functions (“direct definitions”) which are easier to read. https://github.com/jsoftware/data_jd

I found this license for jd itself. It is free only for non-commercial use:

https://github.com/jsoftware/data_jd/blob/master/doc/License...

The link you mentioned only applies to the jsource folder: the jengine code.

A longer piece from GitHub: csvreportsummary=: 3 : 0 t=. <;.2 fread PATHLOGLOGFILE b=. (<,LF)=t b=. b+.(<'!')={.each t b=. b+.(<'src: ')=5{.each t b=. b+.(<'snk: ')=5{.each t b=. b+.(<'elapsed: ')=9{.each t b=. b+.(<'rows: ')=6{.each t b=. b+.(<'error: ')=7{.each t ;b#t )