https://github.com/abrudz/ngn-apl
An APL interpreter written in JavaScript. Runs in a browser or NodeJS.
https://github.com/abrudz/ngn-apl
apl client-side in-browser interpreter javascript node node-js nodejs
Last synced: 10 months ago
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An APL interpreter written in JavaScript. Runs in a browser or NodeJS.
- Host: GitHub
- URL: https://github.com/abrudz/ngn-apl
- Owner: abrudz
- License: mit
- Created: 2020-12-27T12:02:59.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2024-06-05T15:59:34.000Z (about 2 years ago)
- Last Synced: 2024-09-26T18:01:58.046Z (over 1 year ago)
- Topics: apl, client-side, in-browser, interpreter, javascript, node, node-js, nodejs
- Language: JavaScript
- Homepage: https://abrudz.github.io/ngn-apl/
- Size: 2.67 MB
- Stars: 52
- Watchers: 4
- Forks: 8
- Open Issues: 1
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Metadata Files:
- Readme: readme.md
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README
**This is an archive of ngn/apl but PRs to this repo are still accepted. Feel free to contribute!**
Its author thinks it has served its purpose and has become a distraction. He went on to create a free [implementation](https://codeberg.org/ngn/k) of [K6](https://en.wikipedia.org/wiki/K_(programming_language)) and encouraged people to use that instead, until he stopped supporting that too.
----
[Online Demo](https://abrudz.github.io/ngn-apl) - can also be installed offline as a [PWA (Progressive Web App)](https://developer.mozilla.org/en-US/docs/Web/Progressive_web_apps/Guides/What_is_a_progressive_web_app) on a computer / phone - even without internet!
An [APL](https://aplwiki.com) interpreter written in JavaScript.
Runs in a browser or [NodeJS](https://nodejs.org/).
Supports: most primitives, dfns (`{⍺ ⍵}`), nested arrays, complex numbers (`1j2`), infinities (`¯` or `∞`), forks and
atops, strand assignment (`(a b)←c`), indexed assignment (`a[b]←c`), user-defined operators (`{⍺⍺ ⍵⍵}`).
Doesn't support: tradfns (`∇R←X f Y`), non-zero index origin (`⎕IO`), comparison tolerance (`⎕CT`),
prototypes, modified assignment (`x+←1`), control structures (`:If`), object-oriented features, namespaces.
Used in [Paul L Jackson's web site](https://plj541.github.io/APL.js/), [repl.it](https://repl.it/languages/APL),
and [tio.run](https://tio.run/#apl-ngn).
# Offline usage with NodeJS
Run `apl.js` with [Node](https://nodejs.org/) to start a REPL:
node apl.js
An APL script can be given as argument:
node apl.js filename.apl
`apl.js` can be `require()`d as a CommonJS module from JavaScript:
var apl=require('./apl')
var r=apl('1 2 3+4 5 6')
or used in an HTML page:
var r=apl('1 2 3+4 5 6')
# Editor support
* [Vim keymap and syntax](https://gitlab.com/n9n/vim-apl)
* [baruchel/vim-notebook](https://github.com/baruchel/vim-notebook): evaluate blocks of APL code in a vim buffer