basedpl

This package runs BasedPL (BPL) in a web page. BPL is an array language derived from APL, with ideas from J and BQN. The package holds the BPL interpreter compiled to WebAssembly, a language bar for typing BPL's glyphs, and a TextMate grammar for highlighting BPL code.

import init, { Session, configure } from 'https://cdn.jsdelivr.net/npm/basedpl/basedpl_wasm.js';

await init();
configure(location.href, message => console.error(message));
new Session().run('avg←+/÷≢ ⋄ avg 2 4 9', output => console.log(output.data['text/plain']));   // logs 5

BPL on the web documents this package: loading it, its outputs, values and JavaScript functions, drawing, the language bar, and how the gallery is built. The playground and gallery run BPL in your browser. The BPL documentation covers the language.

The symbol bar and font need no interpreter or WebAssembly:

<script type="module">
import {install} from 'https://cdn.jsdelivr.net/npm/basedpl/browser/bpl-editor.js';
install();
</script>

install() mounts in #bpl-toolbar when the host supplies that slot. Otherwise the same component overlays the top of the page without moving its content. The arrow button remembers collapse state without disabling keyboard entry. Repeated calls reuse the connected controller; call its dispose() when the host page closes. Importing the module alone does not mount a bar; it also exports grammar, configuration, editorOptions and installFont() for editor/highlighter integrations.