nxml-ns-state

nxml-ns-state is a variable defined in `nxml-ns.el'.
Its value is

nil

Documentation:
Contains the state of namespace processing.
The state is never modified destructively and so can be saved and
restored without copying.

The value is a stack represented by a list. The list has length
N + 1 where N is the number of open elements. Each member of the
list represents the bindings in effect for a particular element.
Each member is itself a list whose car is the default namespace
(a symbol or nil) and whose cdr is an alist of (PREFIX . NS) pairs
where PREFIX is a string (never nil) and NS is the namespace URI
symbol.