[xml] XPointer with libxml 2.5.10 on win32

[Jerome Martin <jerome martin alma fr>]

Title: Message

Hi,

 

I have the following simplified XML tree

<document>

    <installation id='121'>

        <customer name='foo'/>

    </installation>

    <installation id='25'>

        <customer name='bar'/>

    </installation>

</document>

 

I have a function which manage an 'installation' node and I'm trying to get customer name with XPointer with the following code:

 

void ManageInstallation (xmlDocPtr doc, xmlNodePtr pnode)
{
 xmlXPathContextPtr context;
 xmlXPathObjectPtr result;

 

 context = xmlXPtrNewContext(doc, pnode, NULL);
 if (!context) return;
 xmlChar *_expression_ = BAD_CAST "customer name";

 

 result = xmlXPtrEval(_expression_, context);
    if (!result) return;
 
 xmlChar * resultString = xmlXPathCastToString(result);
     if (resultString) {
 printf("%s\n", resultString); /* utf8 */
    }
 
    xmlXPathFreeObject(result);
    xmlXPathFreeContext(context);
}

 

the problem is that result is NULL even if I call xmlXPtrNewContext(doc, NULL, NULL)

 

Jérôme