[xsl] Optimization

[Morten <morten at it-c dot dk>]

Once again the structure is

<A>
   <B><C/><C/>...<C/></B>
   <B><C/><C/>...<C/></B>
    .
    .
</A>

Thanks to Joerg Heinicke, I managed to pass the position of
the B element to the C elements. Further, I now need a globally
unique number for C. For that, I've been using (within C):

select="count(../preceding-sibling::B/C)+position()"

But this seems very inefficient, and it looks like performance
degrades over time (may be an implementation issue?). Any hints
on a less costly (constant time perhaps) way of getting
enumerated the C elements?

Thanks,

Morten



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