Hi Alberto,
thanks a lot, now it works.
But I have an another point. When I compile my wrong code as release build,
but with optimation deactivated (compiler option /Od), the program don't
crashes. But the pointers in the "XMLResourceIdentifier
*resourceIdentifier"-parameter of my MyEntityResolver are also invalid.
I don't know how important this information is for you.
Greetings
Robert
2011/4/15 Alberto Massari <alberto.mass...@progress.com>
> Hi Robert,
> you are creating an XMLEntityResolver, but using the setEntityResolver API
> that expects an EntityResolver interface; infact, you had to add a cast to
> force the compiler in doing this illegal thing.
> You should instead use the setXMLEntityResolver API, that accepts the
> correct base interface. However, it's not available in the SAX2XMLReader
> interface, and you will have to cast it down to the implementation class
>
> ((SAX2XMLReaderImpl*)pParser)->setXMLEntityResolver(&XmlEntityResolver);
>
> Alberto
>
> Il 15/04/2011 10:33, Robert Wermuth ha scritto:
>
>> Hi Alberto,
>> at first thanks for your fast answer. I am using stack objects, but I
>> starts
>> the parsing in an child stackframe, so that the stackobjects should be
>> valid
>> at parse-time. The program runs in debug build well, but in the release
>> build it crashes. I found out that it crashes at XMLString::replicate()
>> (called by RegxParser::parse()) at the memcpy()-function. The program
>> don't
>> crashes if I remove my own entity resolver.
>>
>> Here is some code of my program for you:
>>
>> Here is my entity resolver:
>>
>> class MyEntityResolver : public XMLEntityResolver
>> {
>> public:
>> virtual ~MyEntityResolver()
>> {
>>
>> }
>>
>>
>> MyEntityResolver()
>> {
>>
>> }
>>
>> virtual InputSource *resolveEntity(XMLResourceIdentifier
>> *resourceIdentifier)
>> {
>> //this prozedure get fired one time, but all the pointers are invalid (I
>> made them public for reading them)
>> printf("BaseURI: 0x%08X\nLocator: 0x%08X\nNameSpace: 0x%08X\nPublicId:
>> 0x%08X\nResourceIdentifierType: 0x%08X\n"
>> "SystemId: 0x%08X"
>> , (UINT) resourceIdentifier->fBaseURI, (UINT)
>> resourceIdentifier->fLocator,
>> (UINT) resourceIdentifier->fNameSpace, (UINT)
>> resourceIdentifier->fPublicId,
>> (UINT) resourceIdentifier->fResourceIdentifierType, (UINT)
>> resourceIdentifier->fSystemId);
>>
>> return g_pMemBufSourceForDTD;
>> }
>> };
>>
>>
>> And here is the code for parsing the XML-file:
>>
>> SAX2XMLReader* pParser = XMLReaderFactory::createXMLReader();
>>
>> XMLPScanToken Token;
>> MyDocumentHandler XmlHandler;
>>
>> MemoryManagerImpl MemManager;
>> void * pDestXMLData;
>> Grammar * pGrammar;
>>
>> pDestXMLData = MemManager.allocate(p_nSize);
>> memcpy(pDestXMLData, p_pXMLData, p_nSize);
>>
>> MemBufInputSource MemBufSource(
>> (const XMLByte *) pDestXMLData,
>> p_nSize,
>> "Fake sytem ID",
>> FALSE,
>> &MemManager);
>>
>> pParser->setContentHandler(&XmlHandler);
>>
>> MyErrorHandler XmlErrorHandler;
>> pParser->setErrorHandler(&XmlErrorHandler);
>>
>>
>> MyEntityResolver XmlEntityResolver;
>> pParser->setEntityResolver((EntityResolver *const)&XmlEntityResolver);
>>
>> pGrammar = pParser->loadGrammar(
>> *g_pMemBufSourceForDTD,
>> Grammar::DTDGrammarType,
>> TRUE);
>>
>> pParser->setFeature(XMLUni::fgXercesUseCachedGrammarInParse, TRUE);
>> pParser->setFeature(XMLUni::fgXercesSchemaFullChecking, TRUE);
>> pParser->setFeature(XMLUni::fgSAX2CoreValidation, TRUE);
>> pParser->setFeature(XMLUni::fgXercesSkipDTDValidation, FALSE);
>> pParser->setFeature(XMLUni::fgXercesLoadExternalDTD, TRUE);
>> pParser->setFeature(XMLUni::fgXercesDynamic, TRUE);
>>
>> try
>> {
>> if(!pParser->parseFirst(MemBufSource, Token)) //Here is the crash!
>> {
>> goto ParseError;
>> }
>>
>> while(pParser->parseNext(Token))
>> {
>> if(g_bParseError == TRUE)
>> {
>> MemManager.deallocate(pDestXMLData);
>> delete pParser;
>> return FALSE;
>> }
>> }
>> }
>>
>> Is that all you need?
>>
>> Greetings
>> Robert
>>
>> 2011/4/14 Alberto Massari<alberto.mass...@progress.com>
>>
>> Hi Robert,
>> it's hard to tell what's wrong without seeing your code. I would guess you
>> are allocating an object on the stack that is destroyed before the parsing
>> take place...
>> Could you share the code you are using?
>>
>> Alberto
>>
>> Il 14/04/2011 17:56, Robert Wermuth ha scritto:
>>
>> Hello,
>> I am using xerces 3.1.1 with the SAX2XMLReader. I use
>> pParser->setEntityResolver() to install my own entity resolver. I compile
>> my
>> project with Visual Studio c++ 9.1 (using the static xerces libs). But in
>> the Release build my program crashes on pParser->parseFirst() when I set
>> my
>> entity resolver.I tried to compile the example code shown there:
>> http://xerces.apache.org/xerces-c/apiDocs-3/classXMLEntityResolver.html.
>> But
>> I get a compiler error (XMLResourceIdentifier::SystemId is not defined.).
>> Is
>> there an error in the lib?
>>
>> Greetings
>> Robert
>>
>>
>>>
>>>> .
>>
>>
>
