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Re: [xsl] Is a variable referencing a node

2008-09-29 11:49:04
2008/9/29 David Carlisle <davidc(_at_)nag(_dot_)co(_dot_)uk>:

 Basically, I want a template that will output the text of a node for an
 arbitrary XPath if that node exists.  If the node doesn't exist, I want
 it to produce "--".


in xslt 2

<xsl:value-of select="(/path/to/single/node,'--')[1]"/>

in xslt 1

<xsl:variable name="n" select="/path/to/single/node"/>
<xsl:value-of select="$n"/>
<xsl:if test="not($n)">--</xsl:if>

you could do:

<xsl:variable name="dash">--</xsl:variable>
<xsl:value-of select="(/path/to/single/node|$dashes)[1]"/>

...as long as RTFs come after input nodes document order?   (I think they do...)



-- 
Andrew Welch
http://andrewjwelch.com
Kernow: http://kernowforsaxon.sf.net/

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