rsass

Sass reimplemented in rust with nom. The "r" in the name might stand for the Rust programming language, for "re-implemented", or possibly for my name Rasmus.

Commandline

To make compiling faster when rsass is used as a library crate (which is probably the dominant use-case), I have made building the command-line utility optional. To build the commandline, define the commandline feature when building.

cargo build --release --features=commandline

Sass language and implementation status

The sass language is defined in its reference doc. This implementation is incomplete but getting there, if slowly.

Progress: 3456 of 5962 tests passed in dart-sass compatibility mode.

If you want a working rust library for sass right now, you may be better of with sass-rs or sass-alt, which are rust wrappers around libsass. Another alternative is grass which is another early stage pure rust implementation. That said, this implementation has reached a version where I find it usable for my personal projects, and the number of working tests are improving.

Contributing

Welcome! When you are reading this, chances are, you are wondering about contributing. The joyful news is that this is easy, and simple. You need not even have written any line of code.

I, the rsass maintainer, will do my best to follow both the Sass Community Guidelines and the Rust Code of Conduct, and I ask you to do the same.

The first step in any contribution is probably to either try to use the crate or to read some of the documentation. When you do, you might find something broken, not yet implemented, or just plain incomprehensible. If so, please see if there is an issue matching the problem or file a new one.

If you contribute code through a pull request, github will automatically check that the code compiles and passes its tests with all required versions of rust, and that the code is properly formatted according to rustfmt. Hopefully, I will then review the code, and either ask you for changes or merge it. This is a hobby project, so please excuse if the review is delayed.