Does any XSL processor include original process instruction elem. in XSL output?

["Tien Liu" <tienliu at hotmail dot com>]

It seems that some vendor's device needs language DTD (process instruction 
element) in order to process the language.
However, XSL processor like Apache XSL processor strips out
the original process instruction from the XSL output and cause
vendor's device (eg Nokia blueprint wap simulator) failing to parse
the page even the mimetype is set to right type (eg wml).

For example, my beginning part of XSL stylesheet looks like the following:

<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" 
"http://www.wapforum.org/DTD/wml_1.1.xml">

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

<xsl:template match="text()"><xsl:value-of select="."/></xsl:template>
<xsl:template match="/">  <!--root rule-->

<wml>
.....


After XSL processing from Apache XSL processor, the output is
the following:

<?xml version="1.0" encoding="UTF-8"?>
<wml>
.....

The process instruction element <!DOCTYPE wml ...> is lost in the
transformation and cause some vendor like Nokia wap simulator to fail
but not in other vendor's emulator like phone.com's.

Since different vendor's parser might have different requirement,
just wondering if any one knows
(1) any XSL processor that keeps the original process instruction element of 
stylesheet in the output
(2) any workaround to this kind of problem.

Any suggestion or comment would be very appreciated.

-- Tien


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