Blank lines introduced before CDATA sections on DOM write

[T MacAdam <ns...@yahoo.com>]

Hi,

I'm a bit of a newbie to Xerces (and XML for that
matter), but I've searched high and low for an answer
to my problem: basically, I've downloaded the latest
(2.5.0) version for Windows and I'm noticing that
Xerces is inserting blank lines into my XML file just
above each CDATA section on output to file (using a
DOMWriter).  For instance (a trivial example), the
following file:

<script>
<![CDATA[Some Text]]>
</script>

becomes:

<?xml version="1.0" encoding="UTF-8" standalone="no"
?>
<script>


  
  <![CDATA[Some Text]]>

</script>

when simply read in using a DOMBuilder and immediately
written out using a DOMWriter (if the above doesn't
show it, I am seeing 3 blank lines above the CDATA
tag).  I do nothing except read the file in and write
it out using "pretty printing".  What's worse, if I
take this new file and again read/write it, then there
are even more blank lines (i.e. they accumulate).

Does anyone know why this is?  Do I have empty text
nodes or something?  The funny thing is, this happens
with version 2.5.0, but NOT with 2.3.0., which I had
been previously using.  

Any help would be greatly appreciated.

P.S. here is the code I'm using to read/write the
file.  I believe it is as simple as it gets ;)

#include <iostream>

#include "xercesc/dom/DOM.hpp"
#include "xercesc/util/PlatformUtils.hpp"
#include "xercesc/parsers/AbstractDOMParser.hpp"
#include "xercesc/framework/LocalFileFormatTarget.hpp"

XERCES_CPP_NAMESPACE_USE

int main(int argc, char* argv[])
{

    if( argc < 3 ) {
        std::cout << "Usage: TextXercesIO infile.xml
outfile.xml\n";
        std::cout.flush();
        return 1;
    }

    DOMDocument *m_pDOMDoc      = NULL;
    DOMWriter   *m_pDOMWriter   = NULL;
    DOMBuilder  *m_pDOMBuilder  = NULL;

    // initialize the environment:

    try {
        XMLPlatformUtils::Initialize();
    } 
    catch( /*const XMLException& toCatch*/ ... ) {
        return 1;
    }

    static const XMLCh gLS[] = { chLatin_L, chLatin_S,
chNull };
    DOMImplementation *impl =
DOMImplementationRegistry::getDOMImplementation(gLS);

    m_pDOMBuilder =
((DOMImplementationLS*)impl)->createDOMBuilder(DOMImplementationLS::MODE_SYNCHRONOUS,
0);
    m_pDOMWriter  =
((DOMImplementationLS*)impl)->createDOMWriter();

    // set the builder so that when queried for the
parsed document, it hands over
    // ownership of the document to this object:
    if(
m_pDOMBuilder->canSetFeature(XMLUni::fgXercesUserAdoptsDOMDocument,
true) )
       
m_pDOMBuilder->setFeature(XMLUni::fgXercesUserAdoptsDOMDocument,
true);
    else {
        return 1;
    }

    // pretty print:
    if(
m_pDOMWriter->canSetFeature(XMLUni::fgDOMWRTFormatPrettyPrint,
true) )
       
m_pDOMWriter->setFeature(XMLUni::fgDOMWRTFormatPrettyPrint,
true);

    // read the file in:

    const char* xmlFileIn = argv[1];
    try
    {
        m_pDOMBuilder->resetDocumentPool();
        m_pDOMDoc =
m_pDOMBuilder->parseURI(xmlFileIn);
    }
    catch(...)
    {
        std::cout << "An error occurred reading.\n";
        std::cout.flush();
        return 1;
    }

    // write the file out:

    const char* xmlFileOut = argv[2];

    XMLFormatTarget *myFormTarget = new
LocalFileFormatTarget(xmlFileOut);

    try
    {
        m_pDOMWriter->writeNode(myFormTarget,
*m_pDOMDoc);
    }
    catch(...)
    {
        std::cout << "An error occurred writing.\n";
        std::cout.flush();
        return 1;
    }

    delete myFormTarget;

    // terminate environment and delete doc if it
still exists:

    if( m_pDOMDoc )
        m_pDOMDoc->release();

    m_pDOMBuilder->release();
    delete m_pDOMWriter;

    XMLPlatformUtils::Terminate();

    m_pDOMBuilder   = NULL;
    m_pDOMWriter    = NULL;
    m_pDOMDoc       = NULL;

	return 0;
}





		
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