test/XPath/xptr/chaptersrange

   1 xpointer(//chapter[position() = 2]/range-to(following::chapter[1]))
   2 xpointer(//chapter[position() <= 2]/range-to(following::chapter[1]))
   3 xpointer(//chapter[position() = last()]/range-to(following::chapter[1]))
   4 xpointer(//chapter[position() = 3]/range-to(/.//chapter[position() = 1]))