"" (literal)

'' (literal)

() (grouping)

* (all nodes)

* (multiplication)

- (unary minus)

. (self axis short form)

.. (parent axis short form)

/ (step separator)

// (descendant-or-self axis short form)

:: (axis specifier)

@ (attribute axis short form)

@* (all attributes)

[] (predicate)

axis nodetest predicate (step)

func() (function call)

name (node test)

| (union)