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RE: sorting question

Subject: RE: sorting question
From: "Lars Huttar" <lars_huttar@xxxxxxx>
Date: Tue, 27 May 2003 15:17:13 -0500
RE:  sorting question
>   I want to process all 'sd:Service' nodes that have 
> sd:ServiceDescription/@ServiceName='Y', 
> except the one with min 'sd:ServiceID'.
> 
>   What is the condition returning the node-set I want ?
> (I have done it by " xsl:sort + xsl:if test='position() > 1'>  ",
> but I would like more elegant solution -> only one xsl:for-each)

I don't know of any way more elegant.

Maybe you're thinking of something that uses simply a select
expression without any xsl:sort or xsl:if, e.g.

  select="/*/sd:Service[sd:ServiceDescription/@ServiceName='Y'
	and ../sd:Service[sd:ServiceID &lt; current()/sd:ServiceID]]"

except that current() isn't correct for giving the context
node of the outer predicate (I don't know how to do that...
can anyone say if it's possible?).

Also you may need to repeat
   and sd:ServiceDescription/@ServiceName='Y'
in the inner predicate if that's what you want.

But even if this worked, I don't think this would really be a win
because it could be much less efficient (order N*N) than your
original approach (order N * log N for sorting).

Don't think I helped much but nobody else had replied.

Lars


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