Re: [xsl] exists function in xslt

Subject: Re: [xsl] exists function in xslt
From: David Carlisle <davidc@xxxxxxxxx>
Date: Fri, 30 Sep 2005 13:53:36 +0100
> why cant i use:

exists() is an XPath 2 function, and xalan implements Xpath 1.

You don't need it though.

> <xsl:if test="exists(/XPATH-QUERY)) = true">

That tests if the string value of the element <true/> is equal to "true"
which you probably don't want. The XPSLT test would be

 <xsl:if test="exists(/XPATH-QUERY)">

which you can equivalently write as

 <xsl:if test="/XPATH-QUERY">

Which would work also in an XSLT1 processor such as xalan.


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