Deal with empty attribute groups.
Deal with empty attribute groups.

Deal with missing ATTLIST decls.

brand/jing-trang,dmj/jing-trang,brand/jing-trang,dmj/jing-trang,hanshuebner/jing-trang,hanshuebner/jing-trang,hanshuebner/jing-trang,brand/jing-trang,dmj/jing-trang