Re: [xsl] generating a repeatable unique id

[Colin Muller <colin at durbanet dot co dot za>]

On Mon, Jul 30, 2001 at 11:25:14AM +0100, Sebastian Rahtz wrote:
> Colin Muller writes:
> 
>  > If the doc hasn't changed, you could arrive at the same count during
>  > your XSLT processing when the later request comes in
> 
> OK, so I know I want "div-645" when I enter the document, so I do
> 
> <xsl:apply-templates select="descendant::div[645]"/>
> 
> but that sounds a bit expensive? I suppose I should trust the
> processor. can the select attribute be constructed with xsl:attribute?

I was thinking more along the lines of (please excuse any bum syntax
below - written in haste by a non-guru; the principle should be clear):

<xsl:template match="//div">
<xsl:variable name="seq"><xsl:number level="any" count="*"/></xsl:variable>
    <xsl:if test="$seq=$param_passed_in">
	<xsl:apply-templates select ="."/>
    </xsl:if>
</xsl:template>

where param_passed_in was generated by:
<xsl:number level="any" count="*"/>
in the original document

I'm entirely unsure whether this would stress the processor - it's an
idea I haven't yet tried out.

Colin


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