Re: [xsl] Grouping by key

[Jeni Tennison <jeni@xxxxxxxxxxxxxxxx>]

Hi Geert,

>>       <xsl:apply-templates select="account[generate-id() = generate-id(
>> key( 'categorise', town ) )]" mode="catcols" />
>
> I think this must be:
> <xsl:apply-templates select="account[generate-id() = generate-id( key('categorise', town)[1] )]"
> mode="catcols" />
>
> (Note the [1] behind the key function)

Actually, that doesn't matter in XSLT 1.0, since if you supply a
node-set to the generate-id() function it gives you the generated ID
for the first node in that node-set automatically. But I usually put
in the [1] anyway (a) because it makes it clearer what's going on and
(b) because in XSLT 2.0, it's an error to supply more than one node as
the argument to generate-id().

Cheers,

Jeni

---
Jeni Tennison
http://www.jenitennison.com/