Re: [xsl] Tricky inclusion match

Subject: Re: [xsl] Tricky inclusion match
From: Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>
Date: Thu, 31 Mar 2005 12:31:54 -0500

I can butt in because this bears on your question of what the XPath expression does ... Dimitre's solution is essentially an improvement over mine.

At 09:40 AM 3/31/2005, you wrote:
1)  if a picture contains the following colors: red, red, maroon where
red is the only color which qualifies as a match, will your test catch
this?  In otherwords, this picture does not qualify.

Yes it will. Try it!

The reason it does is that if you have two sets

set 1

set 2

The count of elements in set 1 with values that appear in set 2 is one, whereas the count of elements in set 2 with values that appear in set 1 is two (unless you deduplicate, as I did).

By changing context nodes to set 1 when he does the test, Dimitre is able to take advantage of the fact that you won't have repeating colors in the list of colors you are interested in.


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