Parsing in a No-File condition generates a Fatal Error, Line: 0, Column: 0

["Elvin, Joe" <el...@cytometrics.com>]

Basically I am trying to load an xml document into memory.  However, the
file does not always exist.  Therefore in some cases the code snippets below
are executed in a no-file condition.  When run in a no-file condition I get
the fatal error listed in the e-mail subject line and memory appears to
become corrupted.  Does the parser require that the file exist prior to
parsing it ?  I have included some code below and listed it in the order
that it is executed for a given xml file.

*	Execute XMLPlatformUtils::Initialize if the private static object
member m_platformInit is false.
*	Validate the xml model
*	Create the path for the xml file if necessary.
*	Create a DOM document in memory

		    // If in BADMODEL state, bail out
		    if (m_error != XMLERR_BADMODEL)
		    {
		        // Create new document
		        m_doc = DOM_Document::createDocument();
		        // Create new root element
		        m_cur = m_doc.createElement(m_model[0].name);
		        // Set its type to 0
		        m_cur.setUserData(0);
		        // Put root element into document
		        m_doc.appendChild(m_cur);
		        // And that's it
		        m_error = XMLERR_NONE;
		    }
		    return m_error;

*	Parse the xml file.

		     DTDValidator* pValidator = new DTDValidator;
		     XMLFileParser parser(pValidator);

		     // Set my document handler on the parser
		     XMLFileHandler handler(*this);

		     parser.setDocumentHandler(&handler);

		     // This is dummy, XMLFileHandler doesn't implement
error-handling logic.
		     // But this forces the parser to register itself as an
error-handler with
		     // XMLScanner, and my derivation of SAXParser does
handle errors

		     parser.setErrorHandler(&handler);

		     // Set doctype handler. The only purpose is to see if
the document has any
		     // doctype declaration at all. We start as
non-validating parser, and switch
		     // to validating when doctype declaration is
encountered

		     XMLFileDocTypeHandler docTypeHandler(parser);

		     pValidator->setDocTypeHandler(&docTypeHandler);

		     try
		     {
		         //initiates the parser; reads the file, converts
from UTF8
		         //(or whatever format the file has) into UTF16,
		         //and creates the tree in RAM.

		         parser.parse(fileName.Text());	// the param is a
const char*
		     }

Thanks, Joe.

Richard H. Elvin (Joe)	       Cytometrics, Inc.
Sr. Software Engineer	       One Independence Mall
E-Mail:    elvin@cytometrics.com   615 Chestnut Street
Phone:   (215) 574-7341	       Seventeenth Floor
Fax:       (215) 574-7099	       Philadelphia, Pa. 19106