RE: Parametrized xsl:sort

Hi Neale.

you could try:
	<xsl:call-template name="petTable">
		<xsl:with-param name="selection"
select="pet[@species='dog']"/>
		<xsl:with-param name="sortkey" select="'name'"/> <!--
select a string name instead of attribute -->
		<xsl:with-param name="sortorder" select="'descending'"/>
	</xsl:call-template>

	<xsl:template name="petTable">
		<xsl:param name="selection" select="*"/>
		<xsl:param name="sortkey" select="''"/>
		<xsl:param name="sortorder" select="''"/>
		...
		<xsl:apply-templates select="$selection">
			<xsl:sort select="@*[name()=$sortkey]"
order="descending"/>
		</xsl:apply-templates>
	..>
	</xsl:template>

this is untested but it might work. the select will look for the
attribute named $sortkey and use that in the sort.


-----Original Message-----
From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx
[mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of Neale
Morison
Sent: Friday, August 30, 2002 5:04 AM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: RE:  Parametrized xsl:sort




> -----Original Message-----
> From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx]On Behalf Of Peter Davis
> Sent: Friday, 30 August 2002 12:57 PM
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: Re:  Parametrized xsl:sort
>
>
> On Thursday 29 August 2002 19:15, Neale Morison wrote:
> > To be specific, I want the result of:
> >         <xsl:sort select="$sortkey" order="descending"/>
>
> Since a normal variable doesn't change, the sort will have no effect
> (but I'm sure you already figured this out).
>
> > with parameter sortkey:
> >         <xsl:with-param name="sortkey" select="@name"/>
>
> If you pass select="@name", it will evaluate "@name" in the context of

> the with-param, not in the sort.  So you probably want to change this
> to:
>
> <xsl:with-param name="sortkey" select="'@name'"/>
>
> which will pass the string '@name' to be evaluated later.
>
> > to be equivalent to:
> >         <xsl:sort select="@name" order="descending"/>
>
> To evaluate the string, you need to use some kind of extension
> function.  Look in the documentation of whatever processor you use; it

> will probably look
> like:
>
> <xsl:sort order="descending" select="xxx:evaluate($sortkey)"/>
>
> The 'xxx' will be associated with an extension namespace specific to
> your processor.  The evaluate() function will take the string $sortkey

> and evaluate it as an XPath expression.
>
> --
> Peter Davis
>
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list

Thanks. I thought I might be able to do it without an eval, but the eval
method does work. Regards, Neale

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



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