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xpath expression with fallback if no match is found

  • From: Sebastian Prehn <sebastian.prehn@p...>
  • To: xml-dev@l...
  • Date: Fri, 8 May 2009 8:43:25 +0200

xpath expression with fallback if no match is found

I have this statement which selects a element in the input xml.
<xsl:value-of select="abc:def/optionalelement"/>

The element is optional. So I am looking for a conditional statement which selects the element if it exists and returns the a default string otherwise.

This snippet should work, but abc:def/optionalelement must be evaluated twice. :-( 
(the actual xpath expression is more complicated)

	<xsl:when test="abc:def/date">
		<xsl:value-of select="abc:def/date"/>

Any ideas?


PLANETS-Webdesign - Web Applications
Sebastian Prehn
Adlerstr. 56, 70199 Stuttgart
PGP keyID: 0x3507AF63

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