/*
* call-seq:
* namespaced_key?(attribute, namespace)
*
* Returns true if +attribute+ is set with +namespace+
*/
static VALUE namespaced_key_eh(VALUE self, VALUE attribute, VALUE namespace)
{
xmlNodePtr node;
Data_Get_Struct(self, xmlNode, node);
if(xmlHasNsProp(node, (xmlChar *)StringValuePtr(attribute),
Qnil == namespace ? NULL : (xmlChar *)StringValuePtr(namespace)))
return Qtrue;
return Qfalse;
}