[S Woodside]

I can see how you do multi-input with document(), but how do you do multi-output?

Some processors - like Saxon - have an extension to provide multiple
output.  I have used the Saxon version myself and it works well.  Of
course your code is not portable to any processor, but otherwise it can
be useful.

XSLT 1.1 (won't become a rec)
http://www.w3.org/TR/xslt11/#multiple-output
http://saxon.sourceforge.net/saxon6.5.2/xsl-elements.html#xsl:document

XSLT 2.0 (hopefully will become a rec)
http://www.w3.org/TR/xslt20/#element-result-document
http://saxon.sourceforge.net/saxon7.3.1/xsl-elements.html#xsl:result-document

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