Subject: Re: [xsl] Re:Re:How to robustly handle mulple conditions in xslt format From: Jeni Tennison <mail@xxxxxxxxxxxxxxxx> Date: Fri, 25 May 2001 13:21:51 +0100 |
Hi Sun-Fu, > Thanks for nice input of building XML structure to handle multiple > conditions. It is certainly a good suggestions I can use. But I > start to worry about the performance problem from using the > complicated predicates. Sure, but that's a price that you have to pay for the flexibility of having dynamically named variables. However, in your example you *know* what variables you have: $month, $dayID etc.. If you always want to test those anyway, why don't you just hard code them into the stylesheet? Why do you need to have dynamically named variables if you're always using the same variables? If you want them defined from two string parameters being passed into the stylesheet, then why not set them up with things like: <xsl:variable name="month" select="$variables[@name = 'month']" /> <xsl:variable name="dayID" select="$variables[@name = 'dayID']" /> ... Better still, pass in the parameters separately, using the Javascript to assign values with .addParameter(). I'd only suggest that you use the kind of $variables XML if you can't predict the names of the variables that you'll need to reference. If that's the case and you're worried about performance, you could always use keys to make it a bit more efficient (though it'll make the XSLT more complicated because you'll need to change context to the $variables node set to find variable elements with that key value within that node set - it's like a separate document). Cheers, Jeni --- Jeni Tennison http://www.jenitennison.com/ XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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