XPath : select all following siblings until another sibling

Question

Here is an excerpt of my xml :

content





        

Answer 1

Simpler than the accepted answer:

//node[@id='1']/following-sibling::node[following::node[@id='2']]

• Find a node anywhere whose id is '1'
• Now find all the following sibling node elements
• ...but only if those elements also have a node with id="2" somewhere after them.

Shown in action with a more clear test document (and legal id values):

xml = '

content

content

'

# A Ruby library that uses libxml2; http://nokogiri.org
require 'nokogiri'; doc = Nokogiri::XML(xml)

expression = "//node[@id='c']/following-sibling::node[following::node[@id='g']]"
puts doc.xpath(expression)
#=> 
#=> 
#=>