optional attributes via function?

[Per Bothner]

http://xquery.com/mailman/listinfo/talk wrote:

>
>   <widgetspecifications>
>   {
>     for $spec in $this//SPEC
>     return
>     <widgetspecification 
>       validFrom="myfn:transformDate($spec/VALIDFROM)" 
>       myfn:outputValidToIfRequired($spec/VALIDTO)>
>        ...
>     </widgetspecification>          
>   }
>   </widgetspecifications>

element widgetspecification {
   attribute validFrom myfn:transformDate($spec/VALIDFROM),
   myfn:outputValidToIfRequired($spec/VALIDTO),
   ...
}

-- 
	--Per Bothner
http://xquery.com/mailman/listinfo/talk   http://per.bothner.com/