Ok, cool
Couldnt I use an STL Map to map the strings to Enums?
Also currently my code compiles fine but i get a runtime error when
executed. Its having problems with the parser->parse(XMLfile) bit. Is it
because my handler class isnt completed or is there other problems.
Thanks
Alex
Alberto Massari wrote:
>
> At 06.11 18/12/2006 -0800, appleGuy wrote:
>
>>Ok, ive found it in my library.
>>
>>Could you please do me a massive favour & show a step by step of your
>>process. To be honest im not totally understanding your logic to achieve
my
>>goal. Also because its not documented its harder to impliment.
>
> Disclaimer: it's a totally untested code...
>
> #include <xercesc/util/StringPool.hpp>
>
> class myHandler : public DocumentHandler
> {
> [...]
> virtual void startDocument();
> virtual void startElement
> (
> const XMLCh* const name
> , AttributeList& attrs
> );
>
> protected:
> XMLStringPool _map;
> };
>
> void myHandler::startDocument()
> {
> _map.flushAll();
> _map.addOrFind(L"loopcardprj"); // id = 1
> _map.addOrFind(L"_prjsetup"); // id = 2
> _map.addOrFind(L"title"); // id = 3
> _map.addOrFind(L"author"); // id = 4
> _map.addOrFind(L"subject"); // id = 5
> _map.addOrFind(L"card"); // id = 6
> _map.addOrFind(L"_questions"); // id = 7
> _map.addOrFind(L"question"); // id = 8
> _map.addOrFind(L"q"); // id = 9
> _map.addOrFind(L"a"); // id = 10
> _map.addOrFind(L"comment"); // id = 11
> }
>
> void myHandler::startElement(const XMLCh* const name, AttributeList&
> attrs)
> {
> switch(_map.getId(name))
> {
> // place the code in the corresponding 'case' branch...
> case 1:
> case 2:
> case 3:
> case 4:
> case 5:
> case 6:
> case 7:
> case 8:
> case 9:
> case 10:
> case 11:
> }
> }
>
> Alberto
>
>
>>Many Thanks Alberto
>>
>>-Alex
>>
>>
>>Alberto Massari wrote:
>> >
>> > At 04.41 18/12/2006 -0800, appleGuy wrote:
>> >
>> >>Ok,
>> >>
>> >>I cant seem to see XMLStringPool in the docs, there is a
>> >>XMLSyncronisedStringPool...
>> >
>> > I guess it was treated as an internal helper class, as it is
>> > explicitly removed from the doc generation step (while
>> > XMLSyncronisedStringPool is a more recent class that escaped the
>> > check...). You can use XMLSyncronisedStringPool (that derives from
>> > XMLStringPool), or just include xercesc/util/StringPool.hpp and use
>> > XMLStringPool...
>> >
>> > Alberto
>> >
>> >>???
>> >>
>> >>-Alex
>> >>
>> >>
>> >>Alberto Massari wrote:
>> >> >
>> >> > At 15.05 17/12/2006 -0800, appleGuy wrote:
>> >> >
>> >> >>Hi,
>> >> >>
>> >> >>Ive been getting there with this Sax buisness...
>> >> >>
>> >> >>Now my handler class is on the way (the problem I had earlier is
>> >> sorted)
>> >> >>
>> >> >>However How do I make comparisons efficently using SAX...I mean when
>> it
>> >>get
>> >> >>the tag, i need to compare it & find the right variable to assign
>> the
>> >> >>character data too (the data between the tags)
>> >> >
>> >> > I would add to my handler class an instance of type XMLStringPool,
>> >> > initialize it by adding to it the names I am interested in (using
>> >> > addOrFind), then use getId to convert the node name into one of
>> these
>> >> > known ids.
>> >> >
>> >> > Alberto
>> >> >
>> >> >
>> >> >>Cheers
>> >> >>Alex
>> >> >>
>> >> >>
>> >> >>appleGuy wrote:
>> >> >> >
>> >> >> > Ok,
>> >> >> >
>> >> >> > Im going to include my code for this problem.
>> >> >> > I get an error when the parse function is called:
>> >> >> > parser->parse(XMLfile)....Ive got no idea why
>> >> >> >
>> >> >> > Also this was formed from the SaxCount Code included with the
>> Xerces
>> >> >> > distro.
>> >> >> >
>> >> >> > Currently I dont see it doing anything. I need to be able to
>> change
>> >> >> > variable & containers in the DocumentHandler Class
>> >> >> >
>> >> >> > Cheers
>> >> >> > Alex
>> >> >> >
>> >> >> >
>> >> >> > bool prjLoad::loadXML_prj(char *prj_filename){
>> >> >> > //Start XML Xerces Framework
>> >> >> > try {
>> >> >> > XMLPlatformUtils::Initialize();
>> >> >> > }
>> >> >> > catch (const XMLException& toCatch) {
>> >> >> > char* message =
>> >> XMLString::transcode(toCatch.getMessage());
>> >> >> > cout << "Error during initialization! :\n"
>> >> >> > << message << "\n";
>> >> >> > XMLString::release(&message);
>> >> >> > return false;
>> >> >> > }
>> >> >> >
>> >> >> > //Create New Parser (SAX)
>> >> >> > SAXParser* parser = new SAXParser();
>> >> >> >
>> >> >> > //File Input Validation
>> >> >> > parser->setDoValidation(true);
>> >> >> > parser->setDoNamespaces(true);
>> >> >> >
>> >> >> > //Create our SAX handler object and install it on
>> >> >> the parser (Doc &
>> >> >> > Error Handler)
>> >> >> > //Using Project as Handler
>> >> >> > parser->setDocumentHandler(prj);
>> >> >> > parser->setErrorHandler(prj);
>> >> >> >
>> >> >> > //Load File through Xerces
>> >> >> > XERCES_STD_QUALIFIER ifstream xmlFileHandle;
>> >> >> > xmlFileHandle.open(prj_filename);
>> >> >> >
>> >> >> > //Load Each Line From File To Array xmlFile
>> >> >> > bool flag = true;
>> >> >> > while (flag == true)
>> >> >> > {
>> >> >> > char token[1000];
>> >> >> > //Set array to zeros
>> >> >> > memset(token,0,sizeof(token));
>> >> >> >
>> >> >> > //Sequential Search
>> >> >> > if(!(xmlFileHandle.eof())){
>> >> >> > xmlFileHandle.getline(token,
>> sizeof(token));
>> >> >> >
>> >> >> > //Check If Line Contains Anything
>> >> >> > if(!(token))
>> >> >> > continue;
>> >> >> > else {
>> >> >> > //Load into New Derived Variable
>> >> >> for overloading & Safety
>> >> >> > const char *XMLfile = token;
>> >> >> >
>> >> >> > //Debug
>> >> >> > cout << "Parsing: " << XMLfile <<
>> >> endl;
>> >> >> >
>> >> >> > //ERROR WIPE -> NEEDS IMPLIMENTING
>> >> >> >
>> >> >> > try {
>> >> >> > parser->parse(XMLfile);
>> >> >> > }
>> >> >> > catch(int debug /*Use Exception in
>> >> >> class*/){
>> >> >> > cout << "ERROR OCCURED" <<
>> >> endl;
>> >> >> > }
>> >> >> >
>> >> >> > }
>> >> >> >
>> >> >> >
>> >> >> > }
>> >> >> > //ELSE STATEMENT FOR EOF-> Set Flag to false
>> >> >> therefore exiting while
>> >> >> > loop
>> >> >> > else
>> >> >> > flag = false;
>> >> >> >
>> >> >> >
>> >> >> > }
>> >> >> >
>> >> >> > return true;
>> >> >> > }
>> >> >> >
>> >> >> >
>> >> >> > appleGuy wrote:
>> >> >> >>
>> >> >> >> Its Ok,
>> >> >> >>
>> >> >> >> I needed to inheirt from the handlerbase class
>> >> >> >>
>> >> >> >>
>> >> >> >> Cheers
>> >> >> >> ALEX
>> >> >> >>
>> >> >> >>
>> >> >> >>
>> >> >> >> appleGuy wrote:
>> >> >> >>>
>> >> >> >>> Hi,
>> >> >> >>>
>> >> >> >>> Ive finally started to get going using Sax. Now im using the
>> >> Samples
>> >> >> to
>> >> >> >>> help coding my own project.
>> >> >> >>>
>> >> >> >>> Looking at Sax Count, they seem to have created their own
>> handler
>> >> >> class
>> >> >> >>> (saxcounthandler):
>> >> >> >>>
>> >> >> >>> SAXCountHandlers handler;
>> >> >> >>> parser->setDocumentHandler(&handler);
>> >> >> >>> parser->setErrorHandler(&handler);
>> >> >> >>>
>> >> >> >>> How can they do this as The type needed in setDocumentHandler
>> >> needs
>> >> >> to
>> >> >> >>> be type DocumentHandler.
>> >> >> >>>
>> >> >> >>> When I try to use my custom class as a handler, it gives an
>> >> >> error...what
>> >> >> >>> is special about the SaxCountHandlers..?
>> >> >> >>>
>> >> >> >>> Ive used pointers,. they have dereferenced an object, surely im
>> >> doing
>> >> >> >>> the same thing?
>> >> >> >>>
>> >> >> >>> Many Thanks
>> >> >> >>> Alex
>> >> >> >>>
>> >> >> >>> p.s: Also by DocumentHandler, what does this do exactly. Im
>> >> thinking
>> >> >> its
>> >> >> >>> the controller for the parsing. I.e you can use the parsed data
>> to
>> >> >> >>> modify the handler and visa-versa
>> >> >> >>>
>> >> >> >>>
>> >> >> >>>
>> >> >> >>>
>> >> >> >>>
>> >> >> >>
>> >> >> >>
>> >> >> >
>> >> >> >
>> >> >>
>> >> >>--
>> >> >>View this message in context:
>> >> >>http://www.nabble.com/Parsing-Using-SAX-tf2835675.html#a7921219
>> >> >>Sent from the Xerces - C - Users mailing list archive at Nabble.com.
>> >> >
>> >> >
>> >> >
>> >>
>> >>--
>> >>View this message in context:
>> >>http://www.nabble.com/Parsing-Using-SAX-tf2835675.html#a7928122
>> >>Sent from the Xerces - C - Users mailing list archive at Nabble.com.
>> >
>> >
>> >
>>
>>--
>>View this message in context:
>>http://www.nabble.com/Parsing-Using-SAX-tf2835675.html#a7929328
>>Sent from the Xerces - C - Users mailing list archive at Nabble.com.
>
>
>
--
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