if(isWhitespaceOnly && context.stripWhitespace()) return Sequence.EMPTY_SEQUENCE;
	public Sequence eval(		Sequence contextSequence,		Item contextItem)		throws XPathException {		MemTreeBuilder builder = context.getDocumentBuilder();		int nodeNr = builder.characters(text);		NodeImpl node = ((DocumentImpl)builder.getDocument()).getNode(nodeNr);		return node;	}