Re: [xsl] Need an XPath expression for: $B is not contained in $A


"empty($A intersect $B//*)"

XPath 1.0:

"count($B/**) = count($B//* | $A)"

Cheers, Wendell


Getting all the ancestors of $A is likely to be a lot faster than getting all 
the descendants of $B, simply because a node typically has many descendants but 
few ancestors.

Michael Kay
Saxonica
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