Mikhail Teterin wrote:
> But the namespaces are defined in the document itself
> -- for example:
>    <xc:XmlCache xmlns:xc="XmlCache" xc:action="Update">
> why do I still need to specify them? It certainly works with xml_grep... Is
> there a bug in the package (tDOM), or is the above element not sufficient
> to define a namespace?

Basically, namespaces and XPath don't sit too well together (when the
XPath expression is located in an XML document) because the document
namespace context at the point in the document where the XPath is
located is shrouded from the expression (because it is formally an
xsd:string, which is not namespace-aware according to the namespaces
spec). This means that if you're embedding an XPath expression in an
XML document, you also need to embed a way to tell it what the
namespace context to evaluate in is. (This is stupid, but the way it
is and isn't a Tcl problem at all.)

If the XPath expression is not contained in some XML context, then it
is even more obvious that the namespace context needs to be given.

Donal.