import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.jdom.*;
import org.jdom.output.XMLOutputter;
import java.io.*;
import java.util.*;



public class XmlChecker {
	//?xml:stylesheet type="text/xsl" href="valformad.xsl">
	public static void main(String[] args){
		if (args.length == 0)
			System.out.println("You must ge en xml fil som argument!");
	try{
		//uppg5a
		SAXBuilder builder = new SAXBuilder();
		String filen = args[0];	
		Document doc = builder.build(new File(filen));	
		XMLOutputter fmt = new XMLOutputter("  ", true);
		fmt.output(doc, System.out);
		System.out.println(filen + " IS VERY WELLFORMED!"+"\n");
		
		//uppg5b
		Element root = doc.getRootElement();
		listNodes(root);
	}
	
	catch (JDOMException e) {
		//hittar fel!!
		System.out.println(args[0] + " NOT WELLFORMED!");
		System.out.println(" kolla " + e.getMessage());
	}
	 catch (Exception e) {
	 e.printStackTrace();
      }
	
}

public static void listNodes(Element elemroot){
	
		//System.out.println("Element: " +elemroot.getName());
		//System.out.println("VALUE:   "+elemroot.getContent());
		//System.out.println("attrib " + elemroot.getAttributes());
		//System.out.println("namn " + elemroot.getNamespace());
		//System.out.println("något " + elemroot.getAdditionalNamespaces()); 	
		
		List children = elemroot.getChildren();
	     
		      for (int i=0;i<children.size();i++){
			 listNodes((Element)children.get(i));
		      }
		
	}

	

}