RE: "sorted" axis (was: Remove duplicates from a node-set accordi ng to content)

> You could do
> 
>(selectively quoted:) 
>
> <xsl:apply-templates mode="sec" 
> select="following-sibling::*[not(@name=$n)][1]"/>
> </xsl:template>
> 
> 
> <xsl:apply-templates 
>    mode="elem"
>   select="following-sibling::*[position()=1 and (@name=$n)]">
>   <xsl:with-param name="t" select="$t+@value"/>
> </xsl:apply-templates>
> <xsl:if test="not(following-sibling::*[position()=1 and (@name=$n)])">
> <total>
> <xsl:value-of select="$t+@value"/>
> </total>

You could indeed. Only two problems: it's murder to write, and it's hard to
optimise the implementation to run in linear time.

The second is perhaps a bad reason for changing the language (SQL users just
had to wait ten years while researchers came up with the optimisation
techniques), but the first is a rather good one.

Mike K


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