Re: help me get rid of some compile errors...

[David J Craigon]

The following code snippet should work:

#include <xercesc/dom/DOM.hpp>

using namespace xercesc;

int foo()
{
    DOMNode *anode;
    if (anode->getNodeType()==DOMNode::ELEMENT_NODE)
    {
     DOMElement *elem= (DOMElement *)anode;
    }
    else
    {
     // Oh dear
    }
}

This tatic has worked for me in the past. It might very well be wrong
though- I'd love to know more.
David



[EMAIL PROTECTED] wrote:

I am wasting way too much time integrating my app with the xerces parser. To add to my woes, I am facing compiler different compiler errors for different projects that use the same xerces code... :-) Can someone help me fix these errors the easy way ?

I am trying..

DOMNode *n // it is a valid domnode.

// the following statement fails. error is "2440: 'static_cast' : cannot convert from 'class xercesc_2_2::DOMNode *' to 'class xercesc_2_2::DOMElement *' Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast"

DOMElement *de = static_cast<DOMElement *>(n);

// this fails too, error is "C2027: use of undefined type 'DOMElement'"
DOMElement *de = reinterpret_cast<DOMElement *>(n);
From the class diagrams, I believe that DOMNode inherits from DOMElement, and others..
So, where am I screwing up and whats the best fix ?

I have the libs and includes and straight...

-Vinayak.

 

-----Original Message-----
From: "Andreï V. FOMITCHEV" [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 25, 2003 11:04 AM
To: [EMAIL PROTECTED]
Subject: Re: Problem with accentuated letters
Neil Graham wrote:

   

Hi Andrei,

     

Curiously, when I use Xerces DOMParser for parse a XML 
       

file, I can save
   

it or print it with DOMWriter, the accentuated characters are quite
present but if I reach the nodes, I don't have any more accents.
  

       

Good; so the parser is evidently doing the right thing.  That is, the
information must be available to the parser if it's capable 
     

of serializing
   

it correctly.  So the question becomes:  how are you 
     

"reaching" the nodes
   

and, as importantly, how are you displaying the result?

     

//parse problem
//it is necessary to add to what follows the management of 
the exceptions
XercesDOMParser * parser = new XercesDOMParser;
parser->parse(xml_file_name);
XMLCh * tempStr [100];
DOMDocument * document = parser->getDocument();
XMLString::transcode("*", (XMLCh *) tempStr, 99);
DOMNodeList * laListe = document->getElementsByTagName((const 
XMLCh*)tempStr);
DOMNode * noeud_courant;
for(XMLSize_t i = 0; i < laListe->getLength(); i++)
{
      noeud_courant = laListe->item(i);
      //on ne peut pas utiliser tempStr car la taille du 
contenu peur 
être superieur à 99
      char * une_fuite_de_memoire_colmate = 
XMLString::transcode(noeud_courant->getNodeName());
      String nom_courant (une_fuite_de_memoire_colmate);
      delete [] une_fuite_de_memoire_colmate;
      String * contenu_courant = XML::getTextContent(noeud_courant);
      //I lost the contents
}
/*!
   return "char*" of the text content of the node node
*/
String * XML::getTextContent(DOMNode * node)
{
 String * res = new String("");

 DOMNodeList * laListe = node->getChildNodes();
 DOMNode * noeud_courant;
 for(XMLSize_t i = 0; i < laListe->getLength(); i++)
    {
      noeud_courant = laListe->item(i);
      // NodeType
      switch(/*(DOMNode::NodeType)*/noeud_courant->getNodeType())
    {
    case DOMNode::ELEMENT_NODE:
      {
        printf("ELEMENT_NODE ");
        String * tampon = getTextContent(noeud_courant);
        *res += *tampon;
        delete tampon;
        break;
      }
    case DOMNode::ATTRIBUTE_NODE:
      //pas de contenu texte ...
      break;
    case DOMNode::TEXT_NODE:
      {
        char * tampon = 
XMLString::transcode(noeud_courant->getNodeValue());
        printf("tampon = '%s'\n", tampon);
        if(tampon != NULL)
          *res += String(tampon);
        delete [] tampon;
        break;
      }
    case DOMNode::CDATA_SECTION_NODE:
    case DOMNode::ENTITY_REFERENCE_NODE:
    case DOMNode::ENTITY_NODE:
    case DOMNode::PROCESSING_INSTRUCTION_NODE:
    case DOMNode::COMMENT_NODE:
    case DOMNode::DOCUMENT_NODE:
    case DOMNode::DOCUMENT_TYPE_NODE:
    case DOMNode::DOCUMENT_FRAGMENT_NODE:
    case DOMNode::NOTATION_NODE:
    default :
      printf("oups. %d node\n", noeud_courant->getNodeType());
      break;
    }
    }
 return res;
}
Do I have errors in the code?

--
Andreï V. FOMITCHEV               [Quand faut-il arrêter 
l'informatique]
Software R&D Engineer    [Lorsque, dans un kilo, on trouve 
1024 grammes]
Odixion, FRANCE



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