Xml – Can XPath return only nodes that have a child of X

xmlxpathxslt

Is it possible to use XPath to select only the nodes that have a particular child elements? For example, from this XML I only want the elements in pets that have a child of 'bar'. So the resulting dataset would contain the lizard and pig elements from this example:

<pets>
  <cat>
    <foo>don't care about this</foo>
  </cat>
  <dog>
   <foo>not this one either</foo>
  </dog>
  <lizard>
   <bar>lizard should be returned, because it has a child of bar</bar>
  </lizard>
  <pig>
   <bar>return pig, too</bar>
  </pig>
</pets>

This Xpath gives me all pets: "/pets/*", but I only want the pets that have a child node of name 'bar'.

Best Answer

Here it is, in all its glory

/pets/*[bar]

English: Give me all children of pets that have a child bar

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