Subject: RE: [xsl] Question on preceding Text()|
From: "Besi Fube" <pearle20@xxxxxxxxxxx>
Date: Tue, 12 Apr 2005 14:01:18 -0400
Thanks for your feedback it was very helpful. On the xslt, the statment: string-length(parent::*/preceding-sibling::text())>0 was valid only when test="../parent::Center" . I was not accounting for a case where test="parent::Center" in which case I also needed to check for string-length(preceding-sibling::text())>0 based on my tree structure.
Thanks again, Besi
----Original Message Follows---- From: "Michael Kay" <mike@xxxxxxxxxxxx> Reply-To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx> Subject: RE: [xsl] Question on preceding Text() Date: Tue, 12 Apr 2005 16:48:15 +0100
> The problem I seem to be having with this is that text() for > instance the > text "Chapter on Testing:" can not be considered a > preceding-sibling of > <AddText>Testing FAQ</AddText> even though they have the same > <Center> > parent tag since preceding-sibling does not grab the text node.
In your example the text node "Chapter on Testing:" is indeed a preceding-sibling of the element node <AddText>Testing FAQ</AddText>, so the problem must be somewhere else.
Note that preceding-sibling::* only selects elements, to select text nodes use preceding-sibling::text(), and to select both using preceding-sibling::node(). You probably only want the immediately preceding sibling, which is preceding-sibling::node().
However, if you select a text node then its string-length will always be >0. Zero-length text nodes do not exist. Perhaps you really want to test for the existence of the text node rather than its length? Fortunately, though, string-length() applied to an empty node-set returns 0.
> <xsl:template match="text()"> > <xsl:if test="ancestor::Center">
> <xsl:choose> > <xsl:when test ="name(../..)='Center'
and > string-length(parent::*/preceding-sibling::*)>0"> > <xsl:text> </xsl:text> > </xsl:when> > <xsl:otherwise> > <xsl:text > disable-output-escaping='yes'><center></xsl:text>
Michael Kay http://www.saxonica.com/