Re: [xsl] Functions Returning Nodes in XSLT 2.0

[Alan <alan-xsl-list@xxxxxxxxx>]

* Dimitre Novatchev <dnovatchev@xxxxxxxxx> [2005-05-19 19:41]:
> On 5/20/05, Alan Gutierrez <alan-xsl-list@xxxxxxxxx> wrote:
> >    In XSLT 2.0 with Saxon 8.4...
> > 
> >    I've written helper methods that look like so.
> > 
> >    <xsl:function name="fn:user" as="element()">
> >      <xsl:param name="login"/>
> >      <xsl:copy-of
> >        select="document('users.xml')/users/user[login = $login]"/>
> >    </xsl:function>
> > 
> >    Making it easier to write select attributes.
> > 
> >    <xsl:value-of select="fn:user()/first-name"/>
> > 
> >    Some of my XPath is getting complicated, so I like to wrap it up
> >    into functions.
> > 
> >    I'm wondering if copy-of is smart enough to forgo copying in
> >    such cases.
> 
> No, xsl:copy-of does what it name says.
> 
> >  If not, I could see how it could get expensive to
> >    call fn:user every time I wanted a property.
> > 
> >    Is there a better practice for this sort of thing?
> 
> Yes. 
> 
> Use:   xsl:sequence

    Thank you, Dimitre. Perfect.

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Alan Gutierrez - alan@xxxxxxxxx
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