Function atsupports

packages/core/css/lib/parse/index.ts:325–343

* Parse supports.

()

	 */

	function atsupports() {
		var pos = position();
		var m = match(/^@supports *([^{]+)/);

		if (!m) return;
		var supports = trim(m[1]);

		if (!open()) return error("@supports missing '{'");

		var style = comments().concat(rules());

		if (!close()) return error("@supports missing '}'");

		return pos({
			type: 'supports',
			supports: supports,
			rules: style,
		});
	}

	/**
	 * Parse host.