Question

XSLT 2.0 allows one to force an empty parameter to be of a certain datatype. XSLT 1.0 doesn’t. (Right?) But I need to force an empty parameter to be a nodeset, so that I can later add nodes to it.

Passing the 0th node of a nodeset appears to work:

<xsl:with-param name="topofstack" select="$nodesetB[0]" />

But is it legal? guaranteed to work? Is there a “correct” way to force an empty parameter to be a nodeset in XSLT 1.0?

Answer 1

I need to force an empty parameter to be a nodeset, so that I can
later add nodes to it.

Passing the 0th node of a nodeset appears to work:

<xsl:with-param name="topofstack" select="$nodesetB[0]" />

I use the much shorter:

/..