Re: [xml] Using Xpath with default namespace and null prefix

[Daniel Veillard <veillard redhat com>]

On Tue, Feb 09, 2010 at 04:07:06PM +0100, François Delyon wrote:
>   /* valid example */
>   exsltStrXpathCtxtRegister(ctxt, NULL);
>       ...
>       
> xmlXPathRegisterNs(ctxt, "str", "http://exslt.org/strings";);
> xmlXPathEval((const xmlChar *)"str:concat(n)", ctxt);
>
> Now calls <http://www.exslt.org/str/functions/concat/index.html>.
>
> exsltStrXpathCtxtRegister(ctxt, NULL) must occur once when I create
> the context.
> But the NSregistrations and the Xpath evaluations are up to the
> users of my application.
>
> I am not a user of xmlint, but I suppose that the same problem occurs.

  Well xmllint uses only libxml2 and not any of libxslt nor libexslt
xmlXPathRegisterNs is only used if you use the --shell option and use
setns command to registed a namespace for XPath evaluation.

Daniel

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