evan-brass

export const peer_id = ""; // identifies this browser in the network

// Try_send and messages is how you would send sdp/ice candidates to signal your RTCPeerConnections.
export function try_send(peer_id, message) {} // Route a message through the network toward the peer.  Unreliable since the peer could be offline or peers could fail in between.
const messages = new EventTarget(); // Receive messages from other peers.

// Would be used to join chatrooms:
export async function subscribe(topic_id) { [/* List of peers that have also subscribed to that topic */] }
export async function unsubscribe(topic) {}

evan-brass

// Parse an open tag
const success = pull(/^<([a-zA-Z][a-zA-Z0-9\-]*)/, tag => {
	const new_tag = { tag, attributes: {}, children: [] };
	cursor.children.push(new_tag);
	parse_attributes(new_tag);
	if (!VOID_TAGS.includes(tag.toLowerCase())) {
		parse_content(new_tag);
	}
})

evan-brass

const VOID_TAGS = [
	// List from: https://riptutorial.com/html/example/4736/void-elements
	'area',
	'base',
	'br',
	'hr',
	'img',
	'input',
	'link',
	'meta',

evan-brass

// Parse a comment node:
|| pull(/^<!--((?:[^-]|-(?!->))*)-->/, comment => {
	cursor.children.push({
		comment
	})
})

evan-brass

function parse_attributes(cursor) {
	while(pull(/^\s+([a-zA-Z][a-zA-Z0-9\-]+)="([^"]*)"/, (
		name,
		value
	) => {
		cursor.attributes[name] = value;
	})) {}
	if (!pull(/^\s*>/)) {
		throw new Error("Malformed open tag");
	}

evan-brass

pull(/^<([a-zA-Z][a-zA-Z0-9\-]*)/, tag => {
	const new_tag = { tag, attributes: {}, children: [] };
	cursor.children.push(new_tag);
	parse_attributes(new_tag);
	parse_content(new_tag);
})

evan-brass

[{ tag: 'p', children: [
	{ text: "\n\t" },
	{ tag: 'b', children: [
		{ text: "bold content" }
	]},
	{ text: "\n" }
]}]

evan-brass

<p>
	<b>bold content</b>
</p>

evan-brass

// Parse an open tag
const success = pull(/^<([a-zA-Z][a-zA-Z0-9\-]*)>/, tag => {
	const new_tag = { tag, attributes: {}, children: [] };
	cursor.children.push(new_tag);
	parse_content(new_tag);
}) ||
// Parse close tag
pull(/^<\/([a-zA-Z][a-zA-Z0-9\-]*)>/, tag => {
	if (cursor.tag.toLowerCase() !== tag.toLowerCase()) {
		throw new Error("Unmatched close tag");

evan-brass

function parse_content(cursor) {
	let run = true;
	while (run && input.length > 0) {
		// Parse an open tag
		const success = pull(/^<([a-zA-Z][a-zA-Z0-9\-]*)>/, tag => {
			const new_tag = { tag, attributes: {}, children: [] };
			cursor.children.push(new_tag);
			parse_content(new_tag);
		}) ||
		// Parse close tag