July 2002
Intermediate to advanced
560 pages
11h 10m
English
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6.3. Location Paths
Location paths are a particular kind of expression that yields a node-set. Because they are so important, we will discuss them first, before general XPath expressions. Two kinds of location paths exist: relative and absolute.
Relative Location Paths
The evaluation of a relative location path occurs relative to some current context node. It consists of one or more location steps. If multiple steps are present, they are separated by slashes (“/”).
The evaluation of these location steps goes from left to right, with the information being passed along consisting of a selected node-set. The node-set fed into the first or leftmost (and possibly only) location step consists of just the context node. The evaluation of a particular ...
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