xsl xlink implementation / Sablotron evaluate() functi

Hello,

I have a XML Document that has xlinks which refer to a node in the same
document. Now I am trying to find a way to follow those xlinks in the XSL
stylesheet.

I've tried <xsl:apply-templates select="@xlink:href" /> but this is
obviously not recognized as nodeset.

I found that saxon provides a method evaluate, but I am bound to use
sablotron.

Is there a way to make sablotron accept the value of the href attribute for
the apply-templates element?

Any tips appreciated
Martin