Select nodes on a relative location path starting at the context node.
A RelativeLocationPath consists of a sequence of one or
more location steps (Step) separated by one of the path operators
/ or //. The operator / selects the
child nodes of the context node, while // selects all descendant
nodes of the context node, since it is an abbreviation for the full XPath
expression descendant-or-self::node().
It corresponds to the expression RelativeLocationPath
defined in XPath,
Section
2.4, Rule 3.
Select all patients (a RelativeLocationPath consisting of
a single AbbreviatedStep: it selects the child nodes of the
context node, which are the patient element nodes)
patient
Select all doctors who discharged a patient (a
RelativeLocationPath that selects every doctor
element node which is a child of a discharged element node which
is a child of a result element node which is a child of a
patient element node which is a child of the context node):
patient/result/discharged/doctor
Select all therapies (an abbreviated RelativeLocationPath
that selects every medication element node which is a child of a
therapy element node which is a descendant of the context
node):
.//therapy/medication
Step |