lumen VS CPython

I agree! That’s actually not a jeer, it’s one of my main criticisms of lisp. You don’t need lists to have lisp. In many respects it works better without them; https://github.com/sctb/lumen proves it, since hash tables and arrays are the fundamental data structure. They have to be, because that’s the only way lumen can run in JS or Lua.

Every time I can’t delete the first element of a list in lisp (I.e. del x[0] in the python sense) I get annoyed with racket.

The reason I look past it is because the benefits are so good that they outweigh the annoyances. I wouldn’t trade it away.

Where h is the raw function for hyperapp, not a macro.

I'd intended to develop my own mini-lisp with the same syntax, but got sidetracked by other projects. Maybe someday I'll get back to it. (Currently, I'm deep in the weeds trying to learn how to write a dependent typed language that compiles to javascript.)

[0]: https://github.com/sctb/lumen

It wasn’t my idea, too. It was Scott Bell’s. I’m not sure if he thought of it or got it from somewhere else, but it’s shockingly effective.

If you want to try it out for yourself, give Lumen a spin: https://github.com/sctb/lumen

> What do you develop with Arc usually?

I try to use Arc for as much as possible. We wrote our TPU monitoring software in it: http://tensorfork.com/tpus

Eventually I became frustrated with Racket's FFI. So I eventually made my own arclike language called elflang: https://github.com/elflang/elf

... which itself is a fork of Lumen (https://github.com/sctb/lumen) by Scott Bell.

The performance is good enough to run a minecraft-style game engine: https://i.imgur.com/iyr0YrB.png which was satisfying.

Nowadays I've been trying to implement Bel, mostly for the challenge of it than for any practical reason.

> I like how the "html" and "css" part was embedded in that "news.arc" file. Do you think that VIM script will highlight and lint the "css" part of an "arc" file?

Nope. https://i.imgur.com/o9aUG6j.png

But it has one very important feature: it can properly highlight atstrings: https://i.imgur.com/wO4f742.png

It's probably hard to tell, but the "@(hexrep border-color*)" would normally be highlighted as if it were a string. Arc has a feature called atstrings, where you can use @foo to reference the enclosing variable "foo". It can also call functions, e.g. "The value of 1 plus 2 is @(+ 1 2)" will become "The value of 1 plus 2 is 3".

Not mine! That was all Scott Bell. It's forked from Lumen: https://github.com/sctb/lumen

But, I did make an interactive tutorial here: https://docs.ycombinator.lol/

If you have any questions about it, I'd be happy to answer. This stuff is pure fun mixed with a shot of professionalism.

For what it's worth, as someone with narcolepsy, I relate quite a lot to your chronic pain. (https://twitter.com/theshawwn/status/1392213804684038150) For me, it mostly translated into wandering aimlessly from job to job, since I thought no one would have me. I hope that you find your way -- there's nothing wrong at all with taking it slow and spending years on something that takes others a few months. Everyone is different, and it's all about the fun.

You could go the opposite route, and run Lisp in your favorite language. Here's a Lisp in JavaScript and Lua: https://github.com/sctb/lumen

Integration is easy because there's no integration. You can just call whatever functions you'd normally call.

Not at all. I've been thanking Scott for making lumen every thanksgiving for several years now. https://github.com/sctb/lumen

I just close the issue immediately after opening it. :)

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> It provides a meaningful performance improvement for at least one popular platform (realistically, on the order of 5%).

At first it will not provide a large boost, but it will set the foundations for larger gains in subsequent releases. They link a list of some proposed improvements already underway, with improvement estimates, at https://github.com/python/cpython/issues/115802

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