Subject: Re: [xsl] sequential navigation problem (long) From: David Carlisle <davidc@xxxxxxxxx> Date: Thu, 5 Dec 2002 12:18:30 GMT |
<xsl:param name="known.gis"> PART | CHAP | SECT | ART | SYMBOLS | APPENDIX | SART </xsl:param> That's made $known.gis into a result tree fragment corresponding to of a root node containing a text node with value teh string " PART | CHAP | SECT | ART | SYMBOLS | APPENDIX | SART " It _is not_ an Xpath expression. <xsl:when test="child::($known.gis)[@ID][1]"> You can't ever have a ( after :: so that's a syntax error, but even if $known.gis was simply PART and you went child::$known.gis then that would be equivalent to using child::'PART' which is also a syntax error: you can't have a string after :: either. You can not, using standard XSLT use fragments of XPath expressions as values. Any more than in C you can use the string "x +1" and somehow use it to increment the variable x. Of course in either language you _can_ use such a string to have the specified effect but you can'tjust use the string where an expression is expected, you have to write a parser for the language contained in the string. In your case, writing a parser in XSLT isn't much fun (although people have done that) but do you really need the element list to be passed in as a parameter. having that as a requirment vastly complicates the problem. 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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