Function readSection

test/html5lib.spectest.js:258–266

()

	let i = 0;
	const n = lines.length;
	const readSection = () => {
		i++;
		const out = [];
		while (i < n && !lines[i].startsWith("#")) {
			out.push(lines[i]);
			i++;
		}
		return out;
	};
	while (i < n) {
		if (lines[i] !== "#data") {
			i++;