Iterator-based code

gistfile1.js

function parseTable(title, lines) {
	let options = new TableOptions(lines.next());
	...
	
	yield '<table>';
	
	for (let line of lines) {
		if (line.startsWith(macros.tableEnd))
			break;
		...
		
		let buffer = line;
		while(true) {
			let open  = buffer.match(openRE).length;
			let close = buffer.match(closeRE).length;
			if (close >= open) break;
			buffer += lines.next();
		}
		...
	}
	...
	yield '</table>';
}

function parse(lines) {
	...
	for (let line of lines) {
		...
		if (macro === macros.tableStart)
			for (let l of parseTable(line, lines))
				yield l;
		...
	}
	...
}