Function marked

packages/utils/renderer/marked.js:1284–1362

* Marked

(src, opt, callback)

	 */

	function marked(src, opt, callback) {
		if (callback || typeof opt === 'function') {
			if (!callback) {
				callback = opt;
				opt = null;
			}

			opt = merge({}, marked.defaults, opt || {});

			var highlight = opt.highlight,
				tokens,
				pending,
				i = 0;

			try {
				tokens = Lexer.lex(src, opt);
			} catch (e) {
				return callback(e);
			}

			pending = tokens.length;

			var done = function (err) {
				if (err) {
					opt.highlight = highlight;
					return callback(err);
				}

				var out;

				try {
					out = Parser.parse(tokens, opt);
				} catch (e) {
					err = e;
				}

				opt.highlight = highlight;

				return err ? callback(err) : callback(null, out);
			};

			if (!highlight || highlight.length < 3) {
				return done();
			}

			delete opt.highlight;

			if (!pending) return done();

			for (; i < tokens.length; i++) {
				(function (token) {
					if (token.type !== 'code') {
						return --pending || done();
					}
					return highlight(token.text, token.lang, function (err, code) {
						if (err) return done(err);
						if (code == null || code === token.text) {
							return --pending || done();