match="vr:Resource/@xsi:type[@xsi:type='q1:ConeSearch']

You mean

match="vr:Resource/@xsi:type[.='q1:ConeSearch']

An xsi:type attribute never has an xsi:type attribute.

Michael Kay
http://www.saxonica.com/
 

> -----Original Message-----
> From: andrew cooke [mailto:acooke@xxxxxxxx] 
> Sent: 28 February 2005 21:23
> To: xsl 
> Subject:  Changing a specific attribute value
> 
> 
> Hi,
> 
> Sorry to bother you.  I'm going round in circles here and would
> appreciate help with the following.
> 
> I would like to transform data like:
> 
> ...
>   <metadata>
>     <vr:Resource xmlns:vr="http://www.ivoa.net/xml/VOResource/v0.10"
> xmlns:oai="http://www.openarchives.org/OAI/2.0/"
> xmlns:oxf="http://www.orbeon.com/oxf/processors"
> xmlns:carn="http://www.cacr.caltech.edu/projects/us-vo/schemas
> /Carnivore"
> xmlns:p="http://www.orbeon.com/oxf/pipeline" xsi:type="q1:ConeSearch"
> updated="2005-02-11">
>       <title xmlns="http://www.ivoa.net/xml/VOResource/v0.10"
> xmlns:q1="http://www.ivoa.net/xml/ConeSearch/v0.3">Sloan Digitized Sky
> Survey(DR3)</title>
>       <shortName xmlns="http://www.ivoa.net/xml/VOResource/v0.10"
> ...
> 
> so that the "xsitype" attribute of vr:Resource has the value
> "cs:ConeSearch" (yes, there's something suspicious in that q1 is
> defined as a namespace abbreviation in the next element - 
> that's not my
> problem, I am treating the attribute value as a simple string)
> 
> I am trying to use the following template:
> 
>   <xsl:stylesheet version="2.0">
>     <xsl:template match="vr:Resource">
>       <vr:Resource>
>         <xsl:apply-templates select="@*"/>
>         <xsl:apply-templates select="*"/>
>       </vr:Resource>
>     </xsl:template>
>     <xsl:template 
> match="vr:Resource/@xsi:type[@xsi:type='q1:ConeSearch']"
>                   priority="2">
>       <xsl:attribute name="xsi:type">cs:ConeSearch</xsl:attribute>
>     </xsl:template>
>     <xsl:template match="vr:Resource/@*">
>       <xsl:copy-of select="."/>
>     </xsl:template>
>     <xsl:template match="*">
>       <xsl:copy>
>         <xsl:apply-templates/>
>       </xsl:copy>
>     </xsl:template>
>   </xsl:stylesheet>
> 
> This is inside a pipeline system, and the namespace 
> defintions are in the
> environment.  However, this is not working (the element and 
> attributes are
> copied - if I supply a different element name it is used - but the
> attribute value for xsi:type is unaltered).  My questions are:
> 
> - Why isn't this changing the attribute value?
> 
> - Why do I need to explicitly apply the templates to each attribute?
>   Shouldn't that be done by the built-in rules? (If I don't, 
> it seems to
> only process attributes "up to" the xsi:type).
> 
> I'm basing my solution on
> http://www.stylusstudio.com/xsllist/200402/post30540.html if that
> helps explain anything.
> 
> Help would be very much appreciated.  There's something I'm 
> missing when
> it comes to attributes, and I don't understand what it is.
> 
> Thanks,
> Andrew
> 
> -- 
> ` __ _ __ ___  ___| |_____   work web site: 
> http://www.ctio.noao.edu/~andrew
>  / _` / _/ _ \/ _ \ / / -_)  personal web site: 
> http://www.acooke.org/andrew
>  \__,_\__\___/\___/_\_\___|  list: 
> http://www.acooke.org/andrew/compute.html