Subject: RE: xslt performance issue position() function used in predicate very slow
From: "Michael Kay" <mike@xxxxxxxxxxxx>
Date: Sat, 26 Aug 2006 21:39:06 +0100
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Yes - MK
> -----Original Message-----
> From: Florent Georges [mailto:darkman_spam@xxxxxxxx]
> Sent: 26 August 2006 21:22
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: Re: xslt performance issue position() function
> used in predicate very slow
>
> Michael Kay wrote:
>
> > So whereas the sequence (a,b) is not necessarily in document order,
> > the sequence ./(a,b) is, by virtue of the "/" operator.
>
> Ok, thanks. If I understood well, in the following
> example:
>
> <xsl:variable name="a" select="elem/a"/>
> <xsl:variable name="b" select="elem/b"/>
>
> <xsl:sequence select="elem/b, elem/a"/>
> <xsl:sequence select="$b, $a"/>
> <xsl:sequence select="elem/(b, a)"/>
>
> when applied in the context of:
>
> <elem>
> <a/>
> <b/>
> </elem>
>
> the sequences will be resp. (with an ad-hoc syntax):
>
> (<b/>, <a/>)
> (<b/>, <a/>)
> (<a/>, <b/>)
>
> In the two first cases, duplicates can also appear, not in
> the last one.
>
> Is it correct?
>
> Thanks,
>
> --drkm
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> p4.vert.ukl.yahoo.com uncompressed/chunked Fri Aug 25
> 12:13:40 GMT 2006
>
>
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