package org.kxml.kdom;import java.util.*;import org.kxml.*;import org.kxml.parser.*;/** a pull parser that re-parses a kdom tree. */public class TreeParser extends AbstractXmlParser {    class Position {	Node node;	StartTag start;	int index = -1;	Position previous;	Position (Node node) {	    this.node = node;	    index = 0;	}	Position (Element element, Position prev) {	    this.node = element;	    	    	    previous = prev;	    start = new StartTag (prev == null ? null : prev.start, 				  element.getNamespace (), 				  element.getName (),				  element.getAttributes (),				  element.getChildCount () == 0,				  false);	    start.setPrefixMap (element.getPrefixMap ());	}    }    Position current;    ParseEvent next;    public TreeParser (Node node) {	current = new Position (node);    }        public TreeParser (Element element, boolean skipRoot) {	current = new Position (element, null);	if (skipRoot) {	    current.index = 0;	    current.start = null;	}    }    public ParseEvent read () {	if (next == null) peek ();	ParseEvent result = next;	next = null;	return result;    }	            public ParseEvent peek () {	if (next == null) {	    int i = current.index++;	    Node node = current.node;		    if (i < 0) 		next = current.start;	    else if (i >= node.getChildCount ()) {				if (current.start == null || i > node.getChildCount ()) 		    next = new ParseEvent (Xml.END_DOCUMENT, null);		else {		    next = new Tag (Xml.END_TAG, current.start, 				   current.start.getNamespace (), 				   current.start.getName ());		    if (current.previous != null)			current = current.previous;		} 	    }	    else {		int type = node.getType (i);				if (type == Xml.ELEMENT) {		    current = new Position (node.getElement (i), current);		    next = peek (); // sets next....		}		else 		    next = new ParseEvent (type, (String) node.getChild (i));	    }	}	return next;    }}