Subject: Re: XPath 1.0 Question: Can two sibling nodes each select their parent node to yield two nodes?
From: David Carlisle <davidc@xxxxxxxxx>
Date: Wed, 22 Sep 2010 23:32:51 +0100
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On 22/09/2010 22:08, Costello, Roger L. wrote:
Hi Folks,
This is an XPath 1.0 question.
Consider this document:
<?xml version="1.0" encoding="UTF-8"?>
<books>
<category>
<genre>Autobiography</genre>
<book>
<name>My Life and Times</name>
<author>Paul McCartney</author>
</book>
<book>
<name>The Beatles</name>
<author>Paul McCartney</author>
</book>
</category>
<category>
<genre>Music</genre>
<book>
<name>Eight Days a Week</name>
<author>Paul McCartney</author>
</book>
</category>
</books>
I would like to select the value of<genre> of each<book> with<author> equal to 'Paul McCartney'. Thus, I want the XPath to yield:
Autobiography
Autobiography
Music
xpath1 either returns a single value (a string, boolean or number) or a
node set.
There is only one genre node with value Autobiography, so any xpath
returning a set of nodes selected from the document can only return at
most one node with value Autobiography.
Now Xpath2 is a different beast...
David
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