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RE: Adding PI in XML Document

• To: 'Peter Murphy' <peterm@f...>, "Deshpande, Gururaj" <gururaj.deshpande@f...>, xml-dev@l...
• Subject: RE: Adding PI in XML Document
• From: Sambasivarao_Potla <Sambasivarao_Potla@s...>
• Date: Fri, 26 Apr 2002 10:30:32 +0530

Hi Peter,

 Thanks!
	 I tried with   doc.insertBefore((Node)pi,doc.getFirstChild());  ..
then also  when I write to a file after finishing, no pi appeares in xml
      document.  I tried with putting this line of code before appending
root element and also after, but no result.
      I am using apache's DOM parser. 


Cheers,
Samba

> -----Original Message-----
> From:	Peter Murphy [SMTP:peterm@f...]
> Sent:	Friday, April 26, 2002 9:39 AM
> To:	Deshpande, Gururaj; 'Sambasivarao_Potla'; xml-dev@l...
> Subject:	RE:  Adding PI in XML Document
> 
> > -----Original Message-----
> > From: Deshpande, Gururaj [mailto:gururaj.deshpande@f...]
> > Sent: Thursday, April 25, 2002 10:14 PM
> > To: 'Sambasivarao_Potla'; 'xml-dev@l...'
> > Subject: RE:  Adding PI in XML Document
> >
> >
> > Instead of ProcessingInstruction, create a Node and append to document.
> >
> > Do this
> >
> >    // xsl Processing instruction
> >     Node pi = document.createProcessingInstruction("xml-stylesheet",
> > "type=\"text/xsl\" href=\"cdcatalog.xsl\"");
> >     document.appendChild(pi);
> >
> > - Gururaj
> >
> 
> Sorry, Gururaj, but that answer seems wrong to me for two reasons.
> 
> 1. Firstly, ProcessingInstructions are inherited from Nodes, so your
> answer
> appears like a recasting of this:
> 
> > >
> > >  Here is the code am trying
> > >
> > >              String data = "type=\"text/xsl\" href=\"cdcatalog.xsl\"";
> > > 	 ProcessingInstruction pi =
> > > doc.createProcessingInstruction("xml-stylesheet",data);
> > >   	doc.appendChild( pi );
> > >
> > >  But when I write to a file after finishing no pi appeares in xml
> > > document.
> > >
> 
> And probably would have the same result.
> 
> Secondly, appending a child adds the PI at the end of the document, which
> is
> not what Sambasivarao wants. Instead,
> you do something like this:
> 
> String data = "type=\"text/xsl\" href=\"cdcatalog.xsl\"";
> ProcessingInstruction pi =
> doc.createProcessingInstruction("xml-stylesheet",data);
> doc.insertBefore((Node)pi,doc.getFirstChild());
> 
> That's my guess, based on testing something similar with Xerces C++ as the
> base. The result: the PI was inserted before the element. I can't really
> see
> any difference with a Java implementation.
> 
> Regards,
> Peter.
> 
> 
> 
> 
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