Rudolf P. Weinmann wrote,
> I have three xml files. Their elements have relationships 
> with each other. For example: element <c id="L1"/> of 
> three.xml belongs to the elements with the ids M1,M2,M3 of 
> two.xml and so on. In terms of a DTD the attribute LinkedTo 
> is of type IDREFS. I have written a stylesheet to produce the 
> file output.xml (see below). Are there more efficient 
> solutions than mine (not using extensions).

I think a lot turns on what you mean by 'efficient'.

Unless I'm missing something, given input docs with number of
significant elements n1, n2, n3, the size of the output doc
will be of size roughly proportional to n1*n2*n3. So it looks 
as though if the total size of the input is O(n), the total 
size of the output will be O(n^3), and hence the time to 
construct the output will be O(n^3) no matter how clever you 
get with the stylesheet, and no matter how good your XSLT 
processor is.

In other words you shouldn't expect this transform to scale up 
particularly nicely.

Cheers,


Miles

-- 
Miles Sabin                       Cromwell Media
Internet Systems Architect        5/6 Glenthorne Mews
+44 (0)20 8817 4030               London, W6 0LJ, England
msabin@xxxxxxxxxxxxxxxxx          http://www.cromwellmedia.com/


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