A near-feature-complete Sass compiler written purely in Rust
This crate aims to provide a high level interface for compiling Sass into plain CSS. It offers a very limited API, currently exposing only 2 functions.
In addition to a library, also included is a binary that is intended to act as an invisible replacement to the Sass commandline executable.
This crate aims to achieve complete feature parity with the
dart-sassreference implementation. A deviation from the
dart-sassimplementation can be considered a bug except for in the following situations:
The large features remaining are
indented syntax css imports @forward compressed output
This is in addition to dozens of smaller features, edge cases, and miscompilations.
grass v0.9.4, it is possible to compile Twitter Bootstrap 4 as well as bulma-scss.
The output is not exact byte-for-byte, and the remaining differences in output are tracked here.
grassexperimentally releases a WASM version of the library to npm, compiled using wasm-bindgen. To use
npm install @connorskees/grassto your package.json. Better documentation for this version will be provided when the library becomes more stable.
(enabled by default): build a binary using clap
(enabled by default): enable the builtin functions
In the future this feature will be removed when it is no longer necessary to rely on
randfor random numbers.
As much as possible this library attempts to follow the same philosophy for testing as
cargo testto run all its tests. This library maintains a test suite distinct from the
sass-spec, though it does include some spec tests verbatim. This has the benefit of allowing tests to be run without ruby as well as allowing the tests more granular than they are in the official spec.
Having said that, to run the official test suite,
git clone https://github.com/connorskees/grass --recursive cd grass cargo b --release ./sass-spec/sass-spec.rb -c './target/release/grass'
./sass-spec/. This might also require you to install the requirements separately for curses.
These numbers come from a default run of the Sass specification as shown above.
2020-11-16 PASSING: 3415 FAILING: 1678 TOTAL: 5093
2020-08-15 PASSING: 3384 FAILING: 1703 TOTAL: 5093
2020-07-24 PASSING: 2935 FAILING: 2158 TOTAL: 5093
2020-06-07 PASSING: 2442 FAILING: 2651 TOTAL: 5093
2020-05-01 PASSING: 2193 FAILING: 2900 TOTAL: 5093
2020-04-01 PASSING: 1711 FAILING: 3382 TOTAL: 5093
2020-03-22 PASSING: 1442 FAILING: 3651 TOTAL: 5093
2020-02-03 PASSING: 242 FAILING: 4851 TOTAL: 5093
2020-01-20 PASSING: 143 FAILING: 4950 TOTAL: 5093