More Complex Patterns

section/*/note
Matches <note> elements that have <section> grandparents.
stockquote[@symbol]
Matches <stockquote> elements that have a “symbol” attribute
stockquote[@symbol=”XXXX”]
Matches <stockquote> elements that have a “symbol” attribute with the value “XXXX
emphasis|strong
Matches <emphasis> or <strong> elements
Pattern Syntax
The XPath pattern syntax is described formally in the XPath specification. Here we’re going to look at the syntax in abstract, but less formal terms:
• An XPath pattern is a ‘location path’, a location path is absolute if it begins with a slash (“/”) and relative otherwise
• A relative location path consists of a series of steps, separated by slashes
• A step is an axis specifier, a node test, and a predicate
The formal syntax is made more complicated by the fact that it must describe both the abbreviated and unabbreviated syntaxes
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