Re: [xml] xmlParseFile return value

[Daniel Veillard <veillard redhat com>]

On Thu, Jan 17, 2002 at 02:57:33PM -0500, Wei Qin wrote:
> I set xmlDoValidityCheckingDefaultValue to 1.
> Some elements in a xml file miss required attributes. The parser prints
> out some error messages, but still return a non-null document ptr.
> How can I tell this ptr from a fully valid document ptr?

   You can either:
     - trap the message and set a flag about the error somewhere.
     - use a lower level parsing API with more access like:
       -----------------
       xmlParserCtxtPtr ctxt;
       int wellformed, valid;
       xmlDocPtr doc;

       xmlDoValidityCheckingDefaultValue = 1
       ctxt = xmlCreateFileParserCtxt(filename);
       xmlParseDocument(ctxt);
       wellformed, = ctxt->wellFormed;
       valid = ctxt->valid;
       doc = ctxt->myDoc;
       xmlFreeParserCtxt(ctxt);
       if (!wellformed,) {
           xmlFreeDoc(doc);
           doc = NULL;
       }
       -----------------
       at that point you have valid, wellformed, and if well-formed
       the resulting document.

Daniel

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