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RE: [xsl] generic sort based on attribute names


Subject: RE: [xsl] generic sort based on attribute names
From: "Michael Kay" <mike@xxxxxxxxxxxx>
Date: Sun, 23 Jan 2005 23:28:47 -0000

> > Here's a solution using the latter approach:
> > 
> > <xsl:for-each select="e">
> >  <xsl:sort>
> >    <xsl:for-each select="@*">
> >      <xsl:sort select="name()"/>
> >      <xsl:value-of select='name(), "=""", ., """ "' separator=""/>
> >    </xsl:for-each>
> >  </xsl:sort>
> >  <xsl:copy-of select="."/>
> > </xsl:for-each>
> > 
> Saxon 8.2 produces an error message that:
> 
> "A sequence of more than one item is not allowed as the @sort-key
> attribute of xsl:sort".

OK: you need to wrap it like this:

> > <xsl:for-each select="e">
> >  <xsl:sort>
      <xsl:value-of>
> >    <xsl:for-each select="@*">
> >      <xsl:sort select="name()"/>
> >      <xsl:value-of select='name(), "=""", ., """ "' separator=""/>
> >    </xsl:for-each>
      </xsl:value-of>
> >  </xsl:sort>
> >  <xsl:copy-of select="."/>
> > </xsl:for-each>
> 
> Besides this problem, does xsl:sort have a "sort-key" attribute? I
> don't see it specified either in the latest WG draft or in the book.
> 
Looks like the error message needs improving... 

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


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