Re: [xml] Interating over all children of a given node?

[carl douglas convergys com]

Gabriel Ambuehl <gabriel_ambuehl buz ch>@gnome.org on 06/12/2001 09:10:50
AM

Sent by:  xml-admin gnome org


To:   xml xmlsoft org
cc:
Subject:  [xml] Interating over all children of a given node?


> -----BEGIN PGP SIGNED MESSAGE-----
>
> Hello,
> I wonder what the easiest way to iterate over all direct children of
> a
> node is. Is there any possibility to obtain a NodeSet of the children
> to allow easy iteration?


I'd suggest using XPath to solve this problem, especially if you're looking
for a particular element, content or attribute.
e.g.

        ctxt = xmlXPathNewContext(doc);
        ctxt->node = xmlDocGetRootElement(doc);

        /* context is set to root element but if set to another node the path would start at that node, e.g. 
"node/descendant::*"  */
        result = xmlXPathEval( BAD_CAST "//*", ctxt);
        nset = result->nodesetval;

        for(n=0;n < nset->nodeNr; n++) {
     /* sanity test */
                if(!nset->nodeNr) continue;

     /* access the nodes with this pointer:   nset->nodeTab[n]  */
     propValue = xmlGetProp(nset->nodeTab[n], BAD_CAST"type");
        }


You can find some tutorials about XML and XPath at http://www.zvon.org



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