RE: Error In Code (Sax Parsing)

You might want to start by trapping all the exceptions that parse() can
generate.  DOMException, OutOfMemoryException, and (I think)
SAXException are all possibilities that you haven't covered.  Using the
getMessage() member to display the exception message may well be
revealing.

Personally, I'd think twice before implementing a constructor that does
so much work.  Handling exceptions properly in constructors is
notoriously difficult, and this one is rife with opportunities for
error.

-----Original Message-----
From: appleGuy [mailto:alx.curtis@xxxxxxxxx] 
Sent: Wednesday, December 20, 2006 12:05 PM
To: c-users@xxxxxxxxxxxxxxxxx
Subject: Error In Code (Sax Parsing)


Hi,

My program generates a runtime error...I went through the debugger & it
seems to break at the parser->parse(XMLfile)

The error is:

Debug Error!....this application has requested the runtime to terminate
in
an unusual way

The code with problems:

#include "prjLoad.h"

//DEBUG
#include <iostream>
using namespace std;

//Default Constructor
prjLoad::prjLoad(prjHandler *ptr_tmp): prjHandle(ptr_tmp){
        loadXML_prj("xml_file.xml");
}

//Destructor
prjLoad::~prjLoad(void){
        //Terminate The Dom Session
        XMLPlatformUtils::Terminate();
}

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(prjHandle);
                parser->setErrorHandler(prjHandle);

                //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(XMLException &e){
                                        cout << "ERROR OCCURED" << endl;
                                }

                        }
                        
                
                }
                //ELSE STATEMENT FOR EOF-> Set Flag to false therefore
exiting while loop
                else
                        flag = false;


        }
                return true;
}

Thanks For looking at this its been bugging me for hours

Cheers
-Alex
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