Subject: Re: [xsl] not()'ing a false variable, xalan 2.4.D1 From: David N Bertoni/Cambridge/IBM <david_n_bertoni@xxxxxxxxxx> Date: Thu, 7 Nov 2002 16:47:05 -0800 |
Hi Elizabeth, Elizabeth Barham <lizzy@xxxxxxxxxxxxxxxxx> wrote: > Hi, > > I am trying to make a variable that is either true or false, and > later doing an <xsl:if> operation with the condition being not'd, but > for some reason xalan 2.4.D1 is saying that a not("variable assigned > as false") is not true. > > Is this a bug or am I doing something wrong? You're doing something wrong. > <!-- make a false variable entitled 'false-variable' --> > <xsl:variable name="false-variable"> > <xsl:value-of select="false()"/> > </xsl:variable> This is not a "false" variable. It's a result tree fragment with a text node whose content is the string "false". This is a "false" variable, if I understand what you are trying to do: <xsl:variable name="false-variable" select="false()"/> A result tree fragment variable _always_ evalutes to boolean true(), because it is considered to be a node-set with one node in it: the root of the tree. Thus, the XPath expression "boolean($rtf)" is always true and "not($rtf)" is always false. For more information, see: http://www.w3.org/TR/xslt#section-Result-Tree-Fragments Hope that helps! Dave XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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