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[xsl] Filtering nodes by using XSL

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Hi all,

I have a situation where I need to filter the results of one XML doc
into an Atom feed; I'm of course using xslt. The underlying XML represents
entries and/or comments in a blog for example, and they want to be able to
request the feed and filter using criteria like "show only the last 10
entries". The problem is that last ten is ambiguous. There may be only 7
entries for example. Using dates won't work because I can't know apriori what
date would qualify the last n entries.

I've got to think some of you have
done this kind of filtering before and probably even more robustly. Any
suggestions? I'm thinking maybe sorting by date and then using some node
operator to pick off the N I need, I'm sort of new to XSLT so I'm not sure of
the idioms for this kind of operation.

Thanks in advance.

-Gregory
 
--
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"Suppose you were an idiot, and suppose you were                        a
member of congress; but I repeat myself."
                    - Mark Twain
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