Karl,
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
<colors>
<color>red</color>
<color>green</color>
<color>lapislazuli</color>
</colors>
set 2
<picture>
<color>red</color>
<color>maroon</color>
<color>red</color>
</picture>
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.
Cheers,
Wendell
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Wendell Piez
mailto:wapiez(_at_)mulberrytech(_dot_)com
Mulberry Technologies, Inc. http://www.mulberrytech.com
17 West Jefferson Street Direct Phone: 301/315-9635
Suite 207 Phone: 301/315-9631
Rockville, MD 20850 Fax: 301/315-8285
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