RE: Default attribute value templates

> I have a template which matches a specific element, then does an
> apply-templates with a sort.  The application is supposed to be fairly
> generic, so it seems a nice idea to allow those attributes of sort
> which are attribute value templates to be parameterized thus:
> 
> <xsl:template match="x">
>      <xsl:apply-templates>
>            <xsl:sort order="{@order}" ... />
>      </xsl:apply-templates>
> </xsl:template>
> 
> The problem is, given <x>...</x> the transformation fails "order must
> be ascending or descending".
> 
You can write
order="{concat(substring('ascending', 1, 9*not(@order)), @order)}"

Mike Kay
Software AG

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