Re: [xml] Copying node between documents

[Charles Bozeman <cbozeman hiwaay net>]

Pawel,

Try removing the xmlUnlinkNode(node) statement. You are unlinking a
"copy" of the node list not the original. Also do you really need to
unlink the node list in the original document.


On Tue, 2004-11-09 at 18:34, Paweł Pałucha wrote:
> Hi,
> I want to find a node in one document with xpath query and then to add 
> set of nodes from another document as its children. I can't do it 
> without loosing some memory (or generating sigsegv). I tried something 
> like this:
>
> xmlXPathContextPtr dest_ctx, src_ctx;
> xmlXPathObjectPtr insert_point, src_set;
> xmlNodePtr node;
> int i;
>
> dest_ctx = xmlXPathNewContext(dest_doc);
> insert_point = xmlXPathEvalExpression("...", dest_doc);
>
> src_ctx = xmlXPathNewContext(src_doc);
> src_set = xmlXPathEvalExpression("...", src_ctx);
>
> for (i = 0; i < src_set->nodesetval->nodeNr; i++) {
>       xmlNodePtr node = xmlDocCopyNode(
>               xpath_obj->nodesetval->nodeTab[i],
>                  dest_doc, 1 /* with children */ );
>       xmlUnlinkNode(node);
>       xmlAddChild(insert_point->nodesetval->nodeNr[0],
>               node);
> }
>
>
> Valgrind show huge memory leaks, but adding xmlFreeNode(node) makes 
> program crush. Where and how should I free memory? I call xmlFreeDoc() 
> and xmlCleanupParser()...
>
> Thanks
> Pawel Palucha
>
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