XPointer is a language for locating data within an Extensible
Markup Language (XML) document based on properties such as location within
the document, character content, and attribute values. XPointer consists
of a description that comes after the # symbol in a Uniform Resource Locator
(URL). XPointer can be used alone or together with XPath, another language
for locating data within an XML document.
In Hypertext Markup Language (HTML), the # symbol enables linking to a specific
marked point within an HTML page. XPointer allows linking to a point based
on content as well. In this way, a reader can, for example, be enabled to
link to the next instance of a certain word, phrase, or sequence of characters
within an XML document.
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