learnhaskell VS mal

learnhaskell

https://github.com/bitemyapp/learnhaskell/blob/master/dialog...

> a transducer is recognizing that the signature of foldl splits

> type Transducer a b = forall r. (r -> b -> r) -> (r -> a -> r)

> they compose like lenses

The author maintains an opinionated path to learning Haskell[0], albeit lacking the criticism of resources that ultimately do not make it into his final recommendation.

[0] https://github.com/bitemyapp/learnhaskell

I find the following type signature captures the essence:

type Transducer x y = forall b. (b -> y -> b) -> (b -> x -> b)

https://github.com/bitemyapp/learnhaskell/blob/master/dialog...

There's some resources here: https://github.com/bitemyapp/learnhaskell

Other than that, I'm afraid your issues are too broad to help much. If you're having trouble getting anywhere, I would recommend starting with some basic tutorial. Here are some decent ones. Haskell is not a language you can just pick up unless you have prior functional programming experience.

This is the best meta-guide I know of to learning Haskell: https://github.com/bitemyapp/learnhaskell

>Would be interesting to see how the interpreter works actually...

It's quite easy to see, there are interpeters for Lisp in like 20 lines or so.

Here's a good one:

https://norvig.com/lispy.html

(It has the full code in a link towards the bottom)

There's also this:

https://github.com/kanaka/mal

Here is one implementation of a lisp (mal specifically) in matlab: https://github.com/kanaka/mal/blob/dcf8f4d7b9cf7b858850a04a0...

Only 260 lines of code, pretty concise :)

have a look at the crafting interpreters book, plus make a lisp (lisp is a great first language to make a compiler/interpreter for, just google "lisp compiler/interpreter" and you'll find lots of resources)

If you're really okay with the limitations of a tree-walk interpreter, you might want to check out MAL, which will teach you how to write a tree-walk interpreter for a LISP. The code for MAL has been translated to most popular languages, so you can work through the creation of an interpreter in the language of your choice. JLox would give you a bit more detail and a more complex language, but I'm not convinced that it's all that important.

Write a small programming language (lisp (https://github.com/kanaka/mal) or brainfuck) in C++ to learn the syntax more. This will teach you a lot about programming languages in general.

So I started some hobbyist game dev using Unity and realised that the full process of making a game has dependencies on a mass of lower-level skills including lighting virtual environments. As a hobbyist photographer I could see some useful analogies from lighting studios and other scenes

So I pivoted, and eventually made money, not from selling a game, but from developing tutorials about digital lighting. I was also able to contribute to a project at work that was making a product based on commercial games engine, not by actually coding it, but by helping to better estimate the costs of the asset generation required.

Coding Unity object scripts in C# also got me back into programming, and I went on to successfully build a self-hosting lisp interpreter following the Make a Lisp guidelines [0].

[0] https://github.com/kanaka/mal/blob/master/process/guide.md

Hijacking the top comment to add https://buildyourownlisp.com and https://github.com/kanaka/mal