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10. Definition of point location: character-point

This tutorial is obsolete. Please, use the new one.

Description

A location of type point is defined by a node, called the container node, and a non-negative integer, called the index. When the container node of a point is of a node type that cannot have child nodes (such as text nodes, comments, and processing instructions), then the index is an index into the characters of the string-value of the node; such a point is called a character-point.



Character point
XPointer: xpointer(start-point(string-range(//*,'another', 1, 0)))

 <AAA>
   <BBB bbb="111">
     Text in the first element BBB.</BBB>
   <BBB bbb="222"> Text in Xanother element BBB.<DDD ddd="999">
       Text in more nested element.</DDD>
   </BBB>
   <CCC ccc="123" xxx="321">
     Again some text in some element.</CCC>
 </AAA>
  • X marks point (zero width)
  • This style marks the container node.
  • This style marks resulting locations.
  • X marks collapsed range (zero width)


Character-point
XPointer: xpointer(start-point(string-range(//*,'another', 8, 0)))

 <AAA>
   <BBB bbb="111">
     Text in the first element BBB.</BBB>
   <BBB bbb="222"> Text in anotherX element BBB.<DDD ddd="999">
       Text in more nested element.</DDD>
   </BBB>
   <CCC ccc="123" xxx="321">
     Again some text in some element.</CCC>
 </AAA>
  • X marks point (zero width)
  • This style marks the container node.
  • This style marks resulting locations.
  • X marks collapsed range (zero width)


Character point
XPointer: xpointer(start-point(string-range(//*,'another', 2, 0)))

 <AAA>
   <BBB bbb="111">
     Text in the first element BBB.</BBB>
   <BBB bbb="222"> Text in aXnother element BBB.<DDD ddd="999">
       Text in more nested element.</DDD>
   </BBB>
   <CCC ccc="123" xxx="321">
     Again some text in some element.</CCC>
 </AAA>
  • X marks point (zero width)
  • This style marks the container node.
  • This style marks resulting locations.
  • X marks collapsed range (zero width)



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