Subject: RE: [xsl] Non-existing node From: "Michael Kay" <mhkay@xxxxxxxxxxxx> Date: Mon, 17 Sep 2001 09:06:53 +0100 |
> I have a (stupid?) question: > > What is returned when you try to reach a node that doesn't exist ? If you reference a node that doesn't exist, the result is an empty node-set. > Imagine the simplest xml possible: > > <xml></xml> Actually that's far from simple; it's highly debatable whether or not this is well-formed XML, since the XML specification states that names beginning with "xml" are reserved for future standardisation... > > what I would like to know is what value is returned if I try > to reach some > node inside the xml, thus is: > > ... > <xsl:if test="SomeNode=Whatever"> > ... > </xsl:if> > ... > The rules for "=", "!=", etc, mean that if you compare an empty node-set to anything, using any of the six comparison operators, the result is false. In fact, comparing two empty node-sets to each other also gives false. Mike Kay XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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