On Sun, 13 Feb 2005 10:47:26 +0100, Joris Gillis <roac(_at_)pandora(_dot_)be>
wrote:
Tempore 00:33:56, die 02/13/2005 AD, hinc in
xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com scripsit Dimitre Novatchev
<dnovatchev(_at_)gmail(_dot_)com>:
One of the most valuable advice from even the first edition of "XSLT
Programmer's Reference" is always to try to use "not()" and to use
"!=" only when it is really necessary.
So which would you advise to solve the question?
"@cat and not(@cat='BLUE')"
or
"@cat!='BLUE'"
Here the two comparison operators are applied on a single node, and
evaluating the the above two expressions results in the same boolean
values.
There is no confusion in using the != operator in this case.
In XPath 2.0 one would probably want to use the "ne" value comparison
operator, as it's operands can only be single values.
Cheers,
Dimitre Novatchev.
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