Tags / fennel

part one: persistent data structures part two: immutable.fnl optimizations part three: parsing part four: parsing (again) Other than that, the parsing is complete, and we can look at the compiler part of the ClojureFnl project. But that’s gonna be in the next post.

Earlier this year I published a guide on how to implement slopes in AABB collision resolution using bump.lua. The resulting system worked, but was a bit hard to use in-game and had a few issues, so I wouldn’t consider it a viable solution.

This year I decided to participate in the Spring Lisp Game Jam. It’s an annual event, where you have to make a game in any kind of lisp in a limited time, usually a week. I’ve been putting this away for several years, because every time the jam started I wasn’t ready to spend time on it, because of work or other duties I had at the time.

part one: persistent data structures part two: immutable.fnl optimizations part three: parsing part four: parsing (again) The two previous posts were not related to the compiler itself, but were kicked off by the start of the compiler development. I’d say this project was the reason that I made proper immutable data structures for Fennel and Lua.

part one: persistent data structures part two: immutable.fnl optimizations part three: parsing part four: parsing (again) So the next post will hopefully be about the compiler itself. Unless I get distracted again. Sike! While I did some work on the compiler, I’m not feeling ready to talk about it yet.

part one: persistent data structures part two: immutable.fnl optimizations part three: parsing part four: parsing (again) Somewhere in 2019 I started a project that aimed to bring some of Clojure features to Lua runtime - fennel-cljlib. It was a library for Fennel that implemented a basic subset of clojure.

Some time ago, I was working on an HTTP library for Fennel. As a proof of concept, I added a module that implements a simple web server and wanted to experiment with it. The server can serve files from a directory using this simple handler:

I’m continuing my work on fennel-cljlib, my port of clojure.core and some other core libraries, focusing on porting missing functions and features to it. One such feature, which I sometimes miss in Lua and Fennel, is dynamic binding. The Lua VM doesn’t provide dynamic scoping as a language feature, and Fennel itself doesn’t introduce any concepts like Clojure’s Var.

I’ve been working on adding a dynamic font-locking for fennel-mode for a while now. The first attempt started years ago, in July 2022, and were quite crude. It consisted of sending a special code to the REPL that would return me a list of macro names, and then I created a regular expression that matched all these names for syntax highlighting.

I just released a new version of the deps.fnl project! After getting some feedback on the 0.1.0 version and addressing most of it, I’m ready to present a new version with improved dependency and conflict handling. Major changes The deps.fnl file format The :deps field was changed back to use maps, as it was during the prototyping stage: