tree VS tao

Hey! I started on the data modeling language Link, which doesn't do much by itself. I am going to use BaseLink for the compiler, at first just compiling to JavaScript.

I agree that it feels like multiple projects are converging on something that is ripe (or close).

I have done some deep-digging for markup languages and came across more than one project in this space. (I've added Jevko to my list; https://twitter.com/abathur/status/1582492437984837632)

You may have already seen it as well, but you might also find https://github.com/teamtreesurf/link interesting.

You choose all of the terms in the tree, like you would choose XML tags. The linked GitHub repo and corresponding organization page explain more details.

If you want some prior work on this, I've implemented effect-objects-as-return-values in my own language Tao, using uniqueness types. There's still work to be done, but I think it's sufficient as a proof of concept that this approach is viable without type soup.

I've personally found through my experiments working on my language Tao that having effects be a property of the return value and not the function itself is very useful and opens up a lot of doors, like iterators that generate effectful values and more precise control over when side effects occur and in what context.

If you’d like to see some examples of great error messages written by a language with a parser combinator, I recommend you check out tao, which is parsed via chumsky, and provides rust-like error messages with the help of ariadne! I have been fiddling with writing my own language for a while now, and after trying out the alternatives, I found Chumsky to be great to work with, and can not recommend it enough. There are also great examples that you can find in the repo as well!

Tao: A statically-typed functional language\ (0 comments)

I've been developing both throughout the development of Tao, my own hobby language. It's since developed quite an extensive syntax (see here for an example: https://github.com/zesterer/tao/blob/master/examples/99.tao), so you can count it as evidence that chumsky scales to complex grammars: https://github.com/zesterer/tao