Yet Another Toy Scripting Language
YATSL is a scripting language built with Swift. it's main intended purpose is to be used for builds (akin to just/make/nob.h). But, ideally, it should be useful for other stuff.
It does aim for ergonomics and clarity but not for performance (as of now).
To see a 'real world' example, check the example.yatsl
-
Everything is passed as an array. Calling a function with a value (
someFunc!var) is just syntax sugar for (someFunc![var]) -
The program interacts with the CLI. The entrypoint is the first procedure provided (or
_startin the lack of it). exported constants may also be mutated via cli-args e.g. .yatsl build! --cc clang -
Atoms: atoms are typeless values wich hold an array. Think of an infinite Rust enum which values hold a [any; unknown_size]. they are prepended with a period ((
.) and intended to be used as options for stuff like OS e.g.set supportedOSs [.linux .darwin .windows] -
identifiers are immutable and may only be shadowed.
- keyword:
let/ assigns a value to an identifier<val> - keyword:
set/ ' ' in the global scope. in practice, like mutation. useful for imperative paradigms in loops<val> - keyword:
const/ ' ' pre-runtime, before the entrypoint being executed<val>
- keyword:
-
procedures accept a single array as argument and return one (might be a unit (empty array)
[]for no intended return)- keword:
proc/ assigns a procedure to an identifier!inputArr(?) <body>
- keword:
For now, the interpreter (well, lexer, for now) is intended to be built via swiftc. 1. Install the swift toolchain ((https://www.swift.org/install) if you're on arch: git clone e https://aur.archlinux.org/packages/swift-bin; cd swift-bin makepkg -sii
2. run the build command (manually, if you want, use just)
swiftc src/yatsl.swift src/lexer.swift -o yatslc
3. use the lexer on your YATSL file !
./yatsl example.yatsl
and see the tokens log !
og !
STATIC BUILDS To build using the musl static sdk, firstt
- install the Static Linux SDK via the swift toolchain (you may also download it but uou'll have to edit the build script with the according folders)
- run the command in build-static.sh That's it! It will give you an executable, just as the dynamic one except for it being like 20 times heavier (and static!)c!)
Installing just (https://github.com/casey/just) it most likely is in your repos (apt install just; pacman -S just; ...) or you can just install it through npm 💀 (npm install -g rust-just)t)
