From: Farrel Lifson <farrel.lifson@...>
Date: 2006-03-08T20:44:00+09:00
Subject: Re: [newbie] REXML, each_element and XPath

I've done some experimentation and I think the problem is as follows.
/doc/element/@attribute is a search for the attribute node, not the
element, so using it with doc.each_element isn't strictly
'semantically' correct. If you want to find an element with an
attribute you should use the /doc/element[@attribute] xpath string.

irb(main):002:0> doc = REXML::Document.new(<<EOF
irb(main):003:1" <doc><element attribute="value"/></doc>"
irb(main):004:1" EOF
irb(main):005:1> )
irb(main):006:0> doc.each_element("/doc/element[@attribute]"){|n| puts
["attribute"]}
value
=> [<element attribute='value'/>]