The main goal of the Evan programming language is to bootstrap a working, functional-style general purpose programming language which nestles comfortably in the JavaScript-world, complete with tools like an evaluator and IDE.
It also ports selected virtues of a number of existing languages (most notably: Lisp) to the context of JavaScript. The IDE should (eventually) be implemented as an Evan program itself, making it meta-circular.
The following technology is used: Node.js, NPM, TypeScript, Browserify, React and MobX.
To get started:
- Clone this repository.
- In the cloned repository, execute:
npm install - To start a Web server with the IDE, execute:
npm start. Then point a browser tohttp://localhost:8031to interact with the IDE. Select an available file/resource to inspect and/or edit and see its evaluation. - To run the tests for the evaluator, execute:
npm test. - To (re-)build the IDE (after having made changes), execute
npm build-weband re-load it in the browser. Hot reloading isn't implemented yet and meta-circularity of the IDE would actually make that circuitous. - To run the standalone evaluator on arbitrary (but valid) JSON, execute:
npm run build,node dist/test/cli.js (<) data/fib.json. You can input JSON either by specifying a path as last argument or by passing it tostdin.
All other documentation you can find under documentation/.
Right now, the menu offers the following selection of dishes:
As you've probably already noticed, the "Evan" acronym is awkward. That's because is retrofitted to the name of my first-born :)