Forscape VS sligh

And if you like mathematical languages, you should check out Forscape :)

You can use the free GitHub runners to execute regression tests on Linux, Windows, and Mac. I recommend testing with 32bit compilation as well as 64bit- it has a way of smoking out bugs. You could take a look at the GitHub actions on my Forscape repo in the .github folder, although it's probably not the most idiomatic runner scripting, but it is a C++ project like yours.

When I was developing a typesetting text editor for Forscape, I struggled to get traction until stumbling on the following plan: 1) Implement the document data structure and get it rendering to the screen 2) Support non-mutating interactions, such as clicking to move the text cursor, selecting, copying, etcetera 3) Support mutating interactions, such as keyboard input, deleting, and pasting. You'll probably use the Command pattern to support undo/redo of mutations

The project is Forscape, although the language part is made a bit complicated because a goal of the project is creating an editor that supports typeset code with IDE interaction

Finally adding multi-file support to Forscape. The frontend UI aspects are completed and I'm quite happy with the result. The app is Unicode heavy and QString's UTF-16 encoding is an annoyance; I would much prefer if Qt relied on std::string even. But the signal/slot mechanism lets you achieve some complicated behaviour with minimal complexity, and Qt looks great.

Here's an example from a project. The first step installs Qt, the second step clones my repo on the runner, then a bit more setup with Conan, then building and running.

I've been working on the Key CAS project (Imgur Screenshot), CAS being an acronym for Computer Algebra System, and "Key" a judiciously chosen title. This was my third time attempting CAS- this iteration was a huge improvement, but I still find it to be a damn hard problem. The GUI comes from the open source project Forscape, a scientific computing environment written in C++.

It gets fun when you go beyond flat symbols and start supporting 2D notation, like fractions and matrices. Probably not worth the hassle for most things, but I think it makes matrix expressions more compact with better readability.

I've been working on a mathematical programming language, Forscape. Currently it's entirely numerical, but I'm building a CAS separately which I hope to use in the language.

But, you still seem hung up on this, so here’s actual code: https://github.com/amw-zero/sligh/blob/main/lib/codegen.ml.

Of course. Here was the first incarnation: https://github.com/amw-zero/sligh. It has a decent overview of the idea in the readme. To sum it up here, the idea is: have a language built around model-driven development and model-based testing, where you write a simple model of an application, and the implementation and model-based tests are compiled for you. I wrote about the overall model-based testing strategy here. This idea comes from self-certifying compilers that produce proofs of their correctness such as Cogent, but we drop the formality requirement and use property-based testing to compare the implementation and model.

Honorable mention - I’m working on a language with similar goals: Sligh, and I’ve written about why I think it’s such a compelling idea before as well too.

In Sligh, I spent most of the last month introducing a new intermediate representation to make tier splitting (choosing if code should live on the client or server) easier. My goal was to enable derived data, as in a model that queries other models for its data and combines them by processing them in memory. I've been using the example of a personal finance application, so imagine:

The language that I work on is Sligh, and it's out of the bulleted list because it's nowhere near as mature as any of those that I listed, and I'm more of a verification enthusiast vs. expert. Almost all of the ideas in it are borrowed from somewhere else, but I think the one quasi-unique idea is it allows you to write a pure logical description / specification of an application, and it generates full-stack web application code from that.

I’m currently using Pest, though I wouldn’t exactly recommend my compiler as a ‘good example’ just yet because I’m prototyping and just churning code out.

Sligh

So tactically it’s currently a source-to-source compiler, where in the source language (my language) you denote the system state transitions, i.e. by writing create!, update!, etc, and those get compiled to corresponding client and server code in the target language (JS for now, but hoping to support WebAssembly in the future). Heres an example program. The compiler source is there too. I’m hacking it together right now, so it’s not my finest work :D