RE: "Outer join" for XSLT?

cknell@xxxxxxxxxx wrote:

> Given:
> <r>
>  <e>1</e>
>  <e>2</e>
>  <e>3</e>
>  <e>4</e>
>  <e>5</e>
> </r>

  Say $r1.

> and 

> <r>
>  <e>2</e>
>  <e>4</e>
> </r>

  Say $r2.

> What I'd like to produce is:

> <r>
>  <e>1</e>
>  <e>3</e>
>  <e>5</e>
> </r>

    <xsl:sequence
        select="for $e in $r1/e
                  return if (exists($r2/e[.=$e]))
                           then ()
                           else $e"/>

?

  Not tested.

--drkm





















	

	
		
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