Function parseDat

test/html5lib.spectest.js:253–314

(text)

 * @returns {{ data: string, document: string | null, fragment: string | null, scriptMode: string | null }[]} cases
 */
const parseDat = (text) => {
	const cases = [];
	const lines = text.split("\n");
	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++;
			continue;
		}
		const test = {
			data: "",
			document: null,
			fragment: null,
			scriptMode: null
		};

		test.data = readSection().join("\n");

		while (i < n && lines[i].startsWith("#") && lines[i] !== "#data") {
			const tag = lines[i];
			if (tag === "#document-fragment") {
				test.fragment = readSection().join("\n").trim();
			} else if (tag === "#script-on") {
				test.scriptMode = "on";

				i++;
			} else if (tag === "#script-off") {
				test.scriptMode = "off";

				i++;
			} else if (tag === "#document") {
				i++;
				const doc = [];
				while (i < n) {
					if (lines[i] === "" && (i + 1 >= n || lines[i + 1] === "#data")) {
						i++;
						break;
					}
					doc.push(lines[i]);
					i++;
				}
				while (doc.length && doc[doc.length - 1] === "") doc.pop();

				test.document = doc.join("\n");
			} else {
				readSection();
			}
		}