Re: expression must evaluate to a nodeset / shortcuts
> Is there a workaround for this? not really. Some systems have an evaluate fextension function to evaluate a string as an Xpath. But you ask > Why i can use but the question is "why would you expect that" (and others too, you are not teh first to ask, this is a FAQ) Most languages have the same restriction. after <xsl:variable name="path" select=" '/root/body/filter/df/@name' "/> $path is a _string_ containing a bit of XPath syntax. so <xsl:value-of select="$path='gspkennung'/@title"/> is legal but means the same as <xsl:value-of select="'/root/body/filter/df/@name'='gspkennung'/@title"/> and tests those two strings. this is just the same as C or most otehr languages, in C if you have the string "x + y" you can't easily get from there to the sum of teh variables x and y unless you write a parser for teh string that maps that string syntax to the expression language. That's what the xx:evaluate() function does for you if your system has that extension (saxon and xalan at least have such an extension) David _____________________________________________________________________ This message has been checked for all known viruses by Star Internet delivered through the MessageLabs Virus Scanning Service. For further information visit http://www.star.net.uk/stats.asp or alternatively call Star Internet for details on the Virus Scanning Service. XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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