[xsl] identity transform - include CDATA's, etc

["Abie Hamaoui" <ahama5@xxxxxxxxxxx>]

I saw an identity transform on msdn online that goes like this:

<?xml version="1.0"?>
<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; >

 <xsl:template match="/ | @* | node()">
   <xsl:copy>
     <xsl:apply-templates select="@* | node()"/>
   </xsl:copy>
 </xsl:template>

</xsl:stylesheet>

however this is not a true identity transform since CDATA sections enclosed 
in the original xml document in <![CDATA[ ]]> is output as regular 
characters.  I don't know if there are other elements besides CDATA elements 
that also don't get translated truthfully.
can someone suggest a new identity template that will render the output 
based on the input exactly as if one were to issue a 'copy' command at a dos 
prompt, or at least get closer to it than the template above?
eg:
<?xml version="1.0"?>
<docroot>
  <element id="a"/>
  <![CDATA[ this is cdata ]]>
  <element id="b"/>
</docroot>

should become:
<?xml version="1.0"?>
<docroot>
  <element id="a"/>
  <![CDATA[ this is cdata ]]>
  <element id="b"/>
</docroot>

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