[xsl] Supressing entity expansion during XSLT transform

Hi all,
   I have the following XML document:

<?xml version="1.0"?>
<!DOCTYPE root [
  <!ENTITY x "hello">
]>
<root>
  <a>&x; world</a>
</root>

(here I am using an internal DTD subset to define custom entities)

[1] I want to write a transform which prevents entity expansion. For
e.g. the output of transform should be (this is an identity
transform):

<?xml version="1.0"?>
<!DOCTYPE root [
  <!ENTITY x "hello">
]>
<root>
  <a>&x; world</a>
</root>

(I think generating the !DOCTYPE declaration (for entity declaration)
in output is necessary to have declaration of the entity 'x').

If I write the identity transform as:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
                        version="2.0">

 <xsl:output method="xml" indent="yes" />

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

</xsl:stylesheet>

I get the output:

<?xml version="1.0" encoding="UTF-8"?>
<root>
  <a>hello world</a>
</root>

But I want the output as specified in [1] above.

What is the solution to this problem? I can use XSLT 2.0.


-- 
Regards,
Mukul Gandhi

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