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Re: [xsl] Keys with duplicates should be simple


Subject: Re: [xsl] Keys with duplicates should be simple
From: Ihe Onwuka <ihe.onwuka@xxxxxxxxx>
Date: Fri, 31 Jan 2014 07:22:39 +0000

No [2] means that a 2nd one exists which would be true if a 3rd one existed etc.

The full dataset picks up instances where there is more than one
duplicate so I can verify the above interpretation.

Having said that your offering although more verbose is superior
semantically as really the best way to write this is something like
(and I am pleading the fifth on the syntax here)
exists(key('person',@href)[2]) but then you look at that and you
realise or can argue (I think) that what I wrote is an abbreviated
form of that anyway.

I suppose a guru could tell whether they are semantically identical
and whether the one abbreviates the other.

On Fri, Jan 31, 2014 at 12:45 AM, Graydon <graydon@xxxxxxxxx> wrote:
> On Thu, Jan 30, 2014 at 04:38:49PM -0800, Dimitre Novatchev scripsit:
>> <xsl:key name="person" match="a" use="@href"/>
>>    <xsl:template match="person">
>>      <duplicate>
>>        <xsl:copy-of select="a[key('person',@href)[2]]"/>
>>      </duplicate>
>>    </xsl:template>
>> </xsl:stylesheet>
>
> Can I note that the [2] would appear to suppose that there's only ever
> one duplicate?
>
> not(position() eq 1) is likely safer.
>
> -- Graydon


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