"I forgot to mention that memory requirements are limited.
Even in one GB
system, 300 MB file cannot be processed as the DOM can take
as much as 10
times the file size. It would crash the system."
One thing to remember is that memory is cheap now adays.
Also, most DOM implementations are bloated. The internal tree used by XSLT
processors such as Saxon is often much smaller (it can take advantage of the
fact that it's immutable). It depends on the structure, but a factor of 4 is
often enough.
However, it's often not memory that limits a large transformation, but
non-linear algorithms in the stylesheet logic.
Michael Kay
http://www.saxonica.com/
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