Namespace Compensation with VTD-XML

When you extract an element fragment by calling VTDNav’s getElementFragment(), you won’t be able to carry along the name spaces within context. If you want to extract an element fragment along with its name spaces, you need to call getElementFragmentNs(). Below are the examples of calling

The Java Version:

// Insert a ns-compensated fragment into an XML doc

public class FragmentTest {    
    public static void main(String[] s) throws Exception{
        // instantiate VTDGen and XMLModifier
        VTDGen vg = new VTDGen();
        XMLModifier xm = new XMLModifier();
        AutoPilot ap = new AutoPilot();
        AutoPilot ap2 = new AutoPilot();
        ap.selectXPath("(/*/*/*)[position()>1 and position()<4]");
        ap2.selectXPath("/*/*/*");
        if (vg.parseFile("soap2.xml",true)){
            VTDNav vn = vg.getNav();
            xm.bind(vn);
            ap2.bind(vn);
            ap.bind(vn);
            ap2.evalXPath();
            ElementFragmentNs ef = vn.getElementFragmentNs();
            int i = -1;
            while((i=ap.evalXPath())!=-1){
                xm.insertAfterElement(ef);
            }           
            xm.output(new FileOutputStream("new_soap.xml"));
        }        
    }
}

The C# version

using System;
using com.ximpleware;

namespace FragmentTest
{
    public class FragmentTest
    {
        public static void Main(String[] args)
        {
            // instantiate VTDGen and XMLModifier
            VTDGen vg = new VTDGen();
            XMLModifier xm = new XMLModifier();
            AutoPilot ap = new AutoPilot();
            AutoPilot ap2 = new AutoPilot();
            ap.selectXPath("(/*/*/*)[position()>1 and position()<4]");
            ap2.selectXPath("/*/*/*");
            if (vg.parseFile("soap2.xml", true))
            {
                VTDNav vn = vg.getNav();
                xm.bind(vn);
                ap2.bind(vn);
                ap.bind(vn);
                ap2.evalXPath();
                ElementFragmentNs ef = vn.getElementFragmentNs();
                int i = -1;
                while ((i = ap.evalXPath()) != -1)
                {
                    xm.insertAfterElement(ef);
                }
                xm.output("new_soap.xml");
            }
        }
    }
}

The C version

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <io.h>
#include "xpath1.h"
#include "helper.h"
#include "vtdGen.h"
#include "vtdNav.h"
#include "autoPilot.h"
#include "XMLModifier.h"
#include "nodeRecorder.h"
#include "bookMark.h"

struct exception_context the_exception_context[1];

void main(){
	exception e;
	Try{
		VTDGen *vg = NULL; /* This is the VTDGen that parses XML */
		VTDNav *vn = NULL; /* This is the VTDNav that navigates the VTD records */
		AutoPilot *ap = NULL, *ap2=NULL;
		XMLModifier *xm = NULL;
		ElementFragmentNs *ef = NULL;
		int i= -1;
		Long l= -1;

		vg = createVTDGen();
		ap = createAutoPilot2();
		ap2 = createAutoPilot2();
		xm = createXMLModifier();
		selectXPath(ap,L"(/*/*/*)[position()>1 and position()<4]");
		selectXPath(ap2,L"/*/*/*");
		if (parseFile(vg,TRUE,"soap2.xml")){
			//FILE *f1 = fopen("d:/new3.xml","wb");
			vn = getNav(vg);
			bind(ap,vn);
			bind(ap2,vn);
			bind4XMLModifier(xm,vn);
			evalXPath(ap2);
			ef = getElementFragmentNs(vn);
			
			while( (i=evalXPath(ap))!=-1){
				insertAfterElement4(xm,ef);
				printf(" index %d \n",i);
			}
			//fwrite(vn->XMLDoc+vn->docOffset,sizeof(UByte),vn->docLen,f1);
			output2(xm,"new3.xml");
			//fclose(f1);
			free(vn->XMLDoc);
			freeVTDNav(vn);
		}
		freeElementFragmentNs(ef);
		freeXMLModifier(xm);
		freeAutoPilot(ap);
		freeAutoPilot(ap2);
		freeVTDGen(vg);
		
	}Catch(e){
		printf("exception !!!!!!!!!!! \n");
	}
}

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