steps.add(i.next());
Expression next = (Expression) i.next(); if(!Type.subTypeOf(next.returnsType(), Type.ATOMIC)) next = new Atomize(context, next); steps.add(next);
	public void setArguments(List arguments) throws XPathException {		for(Iterator i = arguments.iterator(); i.hasNext(); ) {			steps.add(i.next());		}	}