XPointer

• XPointer defines the fragment identifier syntax for XML resources
• goal is to be able to address parts of an XML document:
  • compatible with HTML fragment ID
  • allows to represent any user selection
  • reuses XPath but extend it to allow finer addressing
  • String searches
  • specific hypertext extensions: here(), origin(), ...

A few examples:

• #Introduction
• #xpointer(id("Introduction"))
• #xpointer(/chapitre[2]/p[3])
• #xpointer(//chapitre[titre="Introduction"]/
  descendant::p[position()=last()])
• #xpointer(id("sec2.1")//p[2]/range-to(id("sec2.2")//p[last()]))
• #xpointer(string-range(//title,"Thomas Pynchon"))