RE: Re: Identity transformation for XSLT 2.0
> I recently needed to do set difference operation in a 2.0 > stylesheet, using Saxon 9 (basic version). I was a bit > surprised to find that Saxon reported, "Unknown system > function except()". > > The F&O spec defines this function > (http://www.w3.org/TR/xquery-operators/#func-except). Could > you please tell, why this built in function not implemented > in Saxon 9. It's not a function, it's an operator. (Note the op: prefix). You can write "A except B". > > As a workaround, I had to resort to $seq1[not(. = $seq2)] ... > That doesn't do the same thing, it compares by value, not by node identity. Michael Kay http://www.saxonica.com/
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