[xsl] How to Remove Empty or Unpopulated Attributes When Copying a File

[floatingisland@xxxxxxx]

Hi,

 I'm trying to copy everything in an XML file except unpopulated 
attributes or attributes containing only whitespace. So far, I have not 
been successful. Although I did manage to copy a file and delete all 
the attributes using a modified version the style sheet found here: 
http://www.abbeyworkshop.com/howto/xslt/copy_xml_document/index.html

 I've tried variations of other examples, but so far no success. As a 
side note, does it make a difference in this case if the attributes 
(empty or populated) have namespaces, beyond including the namespaces 
in the XSLT Style Sheet.

If it makes a difference, I'm using the XSLT parser in PHP5, which I 
believe is the libxml parser. Any assistance you could provide would be 
helpful.

Thanks,

 Greg