mediaquery_stack.peek().q.add(e); mediaquery_stack.peek().state = MediaQueryState.AND;
if (e != null && e.getFeature() != null) //the expression is valid mq.q.add(e); mq.state = MediaQueryState.AND; } else {
if (e != null && e.getFeature() != null) //the expression is valid mq.q.add(e); mq.state = MediaQueryState.AND; } else {