Subject: RE: [xsl] variables/parameters in match of xsl:key, 'ends-with' From: Kay Michael <Michael.Kay@xxxxxxx> Date: Wed, 10 Jan 2001 17:00:27 -0000 |
> Does anyone know if future versions of XSLT will allow variables or > parameters in the "match" attribute of xsl:key? No, I can say confidently that no-one does. > > In particular, I have a parameterized XSLT stylesheet (using > xsl:param), where the param is used to filter what is generated. > Yes, that's a nice use case. The restriction was put it to ensure non-circularity (the value of the variable might depend on the key), but in fact the restrictions on non-circularity that are there in the spec are already broken, e.g. there's nothing in the spec that stops you writing: <xsl:variable name="x"> <xsl:call-template name="y"/> </xsl:variable> <xsl:template name="y"> <xsl:value-of select="$x"/> </xsl:template> so my view would be to get rid of all the "static" restrictions and replace them with a run-time restriction that says you can't refer to a variable while you are evaluating it. It's quite hard, though, to express that in rigorous language. Mike Kay XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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