g-s-k / parsley

a scheme implementation in rust

parsley

what if scheme...but rust. still working on a backronym.

cargo install parsley installs the interpreter - see the docs if you want to use it as a library.

high-level goals

1. a lightweight Scheme implementation...
2. that compiles to WebAssembly...
3. usable inside of a larger application without making too many sacrifices...
4. that is modular and extensible...
5. but includes enough definitions to be useful out of the box.

on the horizon

• improve test coverage
  • More tests from SICP
  • Better coverage of the standard library
  • Example crates
• (eventually) R7RS compliance

Navigating this repo

• The source for the main library is in src.
• The source for the cargo install-able binary is in src/bin/parsley.
• The source for the (gh-pages) homepage is in examples/www.
  • To run (serve) or compile (build) it, cd into that directory and use trunk. Its output will be placed in ./examples/www/dist.
• The source for the npm package is in examples/npm.
  • To compile it, use wasm-pack. Its output will be placed in examples/npm/pkg.

License

Licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.