& XSLT On Sep 22, 2005, at 3:24 PM, Michael Nachbaur wrote:

>  my $parser = new XML::LibXML();
>  my $doc = $parser->parse_string($xmp);
>  # or:
>  # my $doc = $parser->parse_file($xmp_filename);
>  my $rootNode = $doc->documentElement();
>  my $image = $rootNode->findvalue('//xapgimg:image');
> 
>  Or if you want to be more specific, you can use the following for the  
>  last line:
>  my $image =  
>  $rootNode->findvalue('/x:xmpmeta/rdf:rdf//xap:thumbnails//xapgimg: 
>  image');
> 
>  This code assumes that only one thumbnail exists.  However, it should  
>  suffice.
> 
>  The above code illustrates using XPath to query the contents of the  
>  XML file.  You may want to look into XPath more, because it is a very  
>  powerful way of interacting with XML documents, and would let you get  
>  more out of this document easily if you need to.

Mmmm.. yes thanks for the posting. I am sorry that I hadn't posted  
everything that I tried first. The code I came with, was similar to  
yours, and it produces an error :

XPath error Undefined namespace prefix in  
/x:xmpmeta/rdf:rdf//xap:thumbnails//xapgimg:image
xmlXPathCompiledEval: evaluation failed

I'm sorry I wasn't clear.

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