From: anne001 <anne@...>
Date: 2008-08-11T04:39:01+09:00
Subject: Using XPath to retrieve an XML element which contains a given text

This code returns the first dataformat element.
And yet the second dataformat is the one containing SPPT.
What am I doing wrong?

require "rexml/document"

include REXML

string = <<EOF
  <dataformats>
      <dataformat>
    		<fileidentifiers>
    			<fileidentifier>CFMT</fileidentifier>
    		</fileidentifiers>
    	</dataformat>
      <dataformat>
      		<fileidentifiers>
      			<fileidentifier>SPPT</fileidentifier>
      		</fileidentifiers>
      </dataformat>
  </dataformats>
EOF

doc = Document.new string
xpathquery="//dataformat[contains(fileidentifier, SPPT)]"
p XPath.first(doc,xpathquery).to_s