[xsl] can a function return an element of a nodeset

[Matthieu Ricaud-Dussarget <matthieu.ricaud@xxxxxxxxx>]

Hi all,

I'm wondering if there is a way to make a function returning an element 
(or a kind of "pointer" to an element) of a another document.
Something like :

<xsl:function name="my:get-node" as="item()*">
<xsl:param name="id"/>
<xsl:copy-of select="document('foo.xml')/bar[@id='$id']"/>
</xsl:function>

The xsl:copy instruction will here copy the node wilthout his contexte, 
but I would like to be able to perform xpath test which need the context 
of this node within foo.xml, such as :

<xsl:value-of select="count(my:get-node('123')/preceding-sibling::*)"/>

I guess this is not possible, can someone confirm this ?

Thanks,

Matthieu

--
Matthieu Ricaud
IGS-CP
Service Livre numirique