https://github.com/lexi-lambda/racket-r7rs

An implementation of R7RS in Racket
https://github.com/lexi-lambda/racket-r7rs

racket scheme

Last synced: 27 days ago
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An implementation of R7RS in Racket

• Host: GitHub
• URL: https://github.com/lexi-lambda/racket-r7rs
• Owner: lexi-lambda
• Created: 2015-10-25T08:13:35.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2024-10-13T21:35:40.000Z (6 months ago)
• Last Synced: 2025-01-30T02:09:57.097Z (3 months ago)
• Topics: racket, scheme
• Language: Racket
• Homepage:
• Size: 118 KB
• Stars: 100
• Watchers: 9
• Forks: 14
• Open Issues: 4
• Metadata Files:
  • Readme: README.md

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README

        
# r7rs [![build](https://github.com/lexi-lambda/racket-r7rs/actions/workflows/build.yml/badge.svg)](https://github.com/lexi-lambda/racket-r7rs/actions/workflows/build.yml)

This is an implementation of [R7RS "small"][r7rs] in [Racket][racket]. To use it, install the package and use `#lang r7rs` in your programs.

```sh

$ raco pkg install r7rs

```

```scheme

#lang r7rs

(import (scheme base)

        (scheme write))

(display (string-append "Hello, " "world!"))

```

## Current Support

All of the libraries defined in R7RS are available. However, there are a few minor missing features or inconsistencies:

  - `(scheme base)` — Implemented except for `include-ci`. Furthermore, the `define-library` form is restricted to be more compatible with the Racket module system.

  - `(scheme process-context)` — All bindings are available, but `exit` and `emergency-exit` are the same, and `exit` does not properly call outgoing `dynamic-wind` thunks.

All other libraries are fully supported.

[racket]: http://racket-lang.org

[r7rs]: https://small.r7rs.org/