"Invalid Document Structure" error during parsing

[Aditya Kulkarni]

Hi all,   I am getting the “Invalid document structure” error during parsing of an XML file. The scenario is as follows –   [1] Platform: Redhat Linux 9.0 and Windows 32-bit   [2] Non multi – threaded   [3] I am passing an instance of  StdInInputSource class as an argument to the XercesDomParser::parse() method.   [4] My test program is being invoked in this way :  cat sim.xml | ./test ( type sim.xml | test on win 32)   [5] When I run my program with the same xml file (invoked as ./test sim.xml ) directly, it gives the desired output. Here I have passed an instance of the LocalFileInputSource class as the argument to XercesDomParser::parse() method.   What can be the possible cause of this message?   Here is the snip of code that I am talking about. <snip> Void XMLParser :: parse( void )     char            whoami[] = "XMLParser::parse";     XMLCh           *x_file_name = NULL;       // [0]     XMLPlatformUtils::Initialize();       // [1]     m_parser = new XercesDOMParser();     NULLCHECK(m_parser, whoami, "Failed to create XercesDOMParser instance", XML_PARSER_NOMEM);       // [2]     m_parser->setDoNamespaces(true);     m_parser->setValidationScheme(XercesDOMParser::Val_Always);     m_parser->setDoSchema(true);     m_parser->setCreateEntityReferenceNodes(false);     m_parser->setCreateCommentNodes(false);     m_parser->setIncludeIgnorableWhitespace(false);       m_ehandler = (ErrorHandler *)new HandlerBase();     if (NULL != m_ehandler) {         m_parser->setErrorHandler(m_ehandler);     }       // create input source.     if (m_readFromStdin == true) {         m_inputSource = new StdInInputSource();         NULLCHECK(m_inputSource, whoami, "StdInInputSource failed", XML_PARSER_NOMEM);     } else {         x_file_name = XMLString::transcode(m_xmlFile.c_str());         NULLCHECK(x_file_name, whoami, "XMLString::transcode failed", XML_PARSER_FAILED);         m_inputSource = new LocalFileInputSource((const XMLCh *)x_file_name);         NULLCHECK(m_inputSource, whoami, "LocalFileInputSource failed", XML_PARSER_NOMEM);     }       // [3]     try {         m_parser->parse((const InputSource &)*m_inputSource);         //        m_parser->parse((const char *)m_xmlFile.c_str());     } catch (const XMLException &x) {         handleXMLException(x);     } catch (const DOMException &d) {         handleDOMException(d);     } catch (const SAXParseException &sp) {         handleSAXParseException(sp);     } catch (const SAXException &s) {         handleSAXException(s);     }       if (m_parser->getErrorCount() != 0) {         printf("Errors encountered during parsing file %s\n", m_xmlFile.c_str());         return XML_PARSER_FAILED;     }  </snip>   I also tried peeping at the contents that come to the test program from the StdInInputSource. The input that I get from StdInInputSource is exactly similar to what is present in the file. Here is the code to see what comes from the StdInInputSource.   <snip>     // check if input stream is correct     if (m_readFromStdin == true) {         bin_in_stream = m_inputSource->makeStream();         if (NULL == bin_in_stream) {             printf("bin_in_stream == NULL\n");             return XML_PARSER_FAILED;         }         memset(inbuf, 0, 5000);         bin_in_stream->readBytes((XMLByte *const)inbuf, 4999);         printf("%s\n", inbuf);     } </snip>   Thanks, Aditya Kulkarni