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RE: [xsl] xsl:sequence

2006-08-07 09:43:39

on the other hand $a is a document structurally identical to 
the current document but it is a copy, so it takes time and 
memory proportional to the size of the document to build, 

That would be true in a naive implementation...

Saxon builds a virtual copy in cases where a copy of a document or element
node is not immediately attached to a new parent or written to a final
result tree. The virtual copy is initially cheap to build in time and
memory, but takes a little longer than the original to navigate.

Michael Kay
http://www.saxonica.com/


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