Select a set of nodes starting from a given node-set.
A step is specified in a location path in order to select a set of nodes relative to a context node. A step can also be specified using an abbreviated syntax.
It corresponds to the expression Step defined in XPath,
Section 2.1, Rule
4.
Select all medication nodes that are children of a
therapy node that are children of a patient node:
/patient/therapy/medication
Using abbreviated syntax, select all diagnosis elements
of the current context node that have a value of
"DCI":
//diagnosis[.='DCI']
Using abbreviated syntax, retrieve all diagnosis elements
whose parent node has the element symptoms containing the value
"headache":
//diagnosis[../symptoms ~= 'headache']
AxisSpecifier |
NodeTest |
Predicate |