https://github.com/rhysd/Crisp

Lisp dialect implemented with Crystal
https://github.com/rhysd/Crisp

crystal language lisp

Last synced: about 2 months ago
JSON representation

Lisp dialect implemented with Crystal

• Host: GitHub
• URL: https://github.com/rhysd/Crisp
• Owner: rhysd
• License: mit
• Created: 2015-06-03T16:16:09.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2023-03-15T08:56:07.000Z (over 1 year ago)
• Last Synced: 2024-04-13T16:31:11.458Z (3 months ago)
• Topics: crystal, language, lisp
• Language: Crystal
• Size: 59.6 KB
• Stars: 43
• Watchers: 6
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Lists

• awesome-crystal - crisp - Lisp dialect implemented with Crystal (Implementations/Compilers)
• awesome-crystal - crisp - Lisp dialect implemented with Crystal (Implementations/Compilers)
• awesome-crystal - crisp - Lisp dialect implemented with Crystal (Implementations/Compilers)
• awesome-crystal - crisp - Lisp dialect implemented with Crystal (Implementations/Compilers)

README

        
Crisp

=====

[![CI](https://github.com/rhysd/Crisp/workflows/CI/badge.svg?branch=master)](https://github.com/rhysd/Crisp/actions?query=workflow%3ACI)

Crisp is one of Lisp dialect which is based on [mal](https://github.com/kanaka/mal) and implemented with [Crystal](https://github.com/manastech/crystal).

This project is a toy box for my dynamic language ideas.

![screenshot](https://raw.githubusercontent.com/rhysd/screenshots/master/Crisp/crisp.gif)

## So Many Tasks

- __Refactorings__

  - [ ] Make `is_a?` guards more elegant

  - [ ] Import test cases from Mal

  - [x] Add CI

  - [x] More OOP (`evaluator`, remove global variable, move states into object)

  - [x] Use standard `readline` implementation

  - [ ] Better lexer and parser

  - [ ] Add examples

  - [ ] More convenient REPL (e.g. completion)

- __New language features using Crystal's semantics__

  - [ ] Algebraic data type

  - ...

## Installation

1. [Install `crystal` command](https://crystal-lang.org/install/)

2. Run `shards install` for installing dependencies

3. Run `crystal build /path/to/Crisp/crisp.cr` to build an executable (add `--release` for the release build)

4. Put the built `crisp` executable in a `$PATH` directory

## Examples

Please see [mal test cases](https://github.com/rhysd/Crisp/tree/master/spec/crisp/mal_specs/tests) for now.

## Development Environment

- macOS or Linux

- Crystal 0.33.0 or later

## License

Distributed under [the MIT License](http://opensource.org/licenses/MIT).

```

Copyright (c) 2015 rhysd

```