Re: Loading an external file of index

[Pierre Attar <patt@xxxxxxxxx>]

Jeni,

Thanks a lot, it works. Also, sorry for all of this because you are right, 
it was in the XSLT spec.

So now, I'm happy because I have what I want ... but I have a little regret 
because I dont't understand why it works.

What does means this "for-each" as soon as I use it only to load a document 
? Why not only ask to load the document using an "apply-template" for 
loading ? Does this "for-each" means that a processor needs to load and 
reparse all keys declarations each time ?

Also, I'm a little bit curious on performances : for now the document 
database is not so heavy. But let suppose, later having a 10 000 document 
database with something like 100 keyref in each document.
Would an XSL transformer need to load the shared file 100 times per 
document ? Even, looking at the syntax, would it need to load it, for each 
keyref element, as many times as needed before finding the right key in the 
shared document ?

I know this is a question of implementation but the syntax is hard to 
understand if someont wants to know what it really means.

Regards,

Pierre

At 12:29 22/06/2000 +0100, you wrote:
> At 12:42 PM 6/22/00 +0200, Eric van der Vlist wrote:
> >I haven't tested it since my favorite XSLT processors is lacking key
> >support, but something like :
> >
> ><xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
> >version="1.0">
> >
> >        <xsl:output method="html" indent="no"/>
> >
> >       <xsl:key name="mysetofkeys"
> >             match="document('../shared/shared.xml')/keybase/key"
> >            use="@name"/>
> >
> >          ....
> >
> ></xsl:stylesheet >
> >
> >should work from my understanding of the rec.
>
> Unfortunately, I know from struggling with some fairly recent questions
> that this doesn't work.  You can't use the document() function within the
> 'match' attribute of xsl:key.  Instead, define the key as if the input
> document was the one with the keys in, at the top level of the stylesheet:
>
>   <xsl:key name="mysetofkeys" match="/keybase/key" use="@name" />
>
> Then, when you want to use it, put the key() function within an
> xsl:for-each that has the document that holds the keys as its 'select'
> attribute:
>
>   <xsl:template match="keyref">
>     <xsl:variable name="keyrefname" select="@name" />
>     <xsl:for-each select="document('../shared/shared.xml')">
>       <b><xsl:value-of select="key('mysetofkeys', $keyrefname)/ACRONYM" 
> /></b>
>     </xsl:for-each>
>   </xsl:template>
>
> This is kind of explained in the XSLT Recommendation at
> http://www.w3.org/TR/xslt#function-key, right at the end of that section.
>
> I hope that helps,
>
> Jeni
>
> Dr Jeni Tennison
> Epistemics Ltd, Strelley Hall, Nottingham, NG8 6PE
> Telephone 0115 9061301 ? Fax 0115 9061304 ? Email
> jeni.tennison@xxxxxxxxxxxxxxxx
>
>
>
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list


XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list