Thanks everyone for the info!

I already had something with keys, but it was much less elegant since
the test was not node in the match part but via an xsl:if the template.

I this particular case the trimming is done on a variable (via
exsl:node-set()) so keys do not work (the keyed tree must exist at the
start of the processing, right ?).

I ended up doing :

<xsl:for-each select="exsl:node-set($expanded)/*">
<xsl:variable name="name" select="@name"/>
<xsl:variable name="version" select="@version"/>
<xsl:if test="not(preceding-sibling::*[@name = $name and @version =
$version])">
...

Which is much less elegant (and I suspect more processing-intensive) but
sort-of works here.

Regards,

--
Nicolas Mailhot

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