RE(2): Sorting by one of many

Hi

Simple enough, assuming they arn't always ordered and can be empty.

Matts


> Hi,
>
> > Challenging sort problem for me. The rows can hold one to
> > four dates and output should be sorted by only one. date1
> > being primary and if that is missing date2 and so on. How can
> > this be efficiently done?
> Assuming the date elements are ordered,
>
>  <xsl:sort select="(date1|date2|date3|date4)[1]"/>
>
> Cheers,
>
> Jarno