register-xsh-namespace expression
Registers a new prefix for the XSH2 namespace http://xsh.sourceforge.net/xsh/. The prefix
can later be used in XPath expressions. Note, that XSH2
namespace is by default registered with the prefix
xsh. This command is thus, in
general, useful only when some document uses
xsh prefix for a different namespace
or if you want a shorter prefix.