Re: [xsl] Using variables in template match patterns?

[Geert Josten <Geert.Josten@xxxxxxxxxxx>]

Thnx Wendell, exactly what I was looking for..

Cheers,
Geert

Wendell Piez wrote:
> Geert,
>
> It is not conformant -- no variable references are allowed in XSLT 1.0 
> match patterns.
>
> (XSLT 1.0 section 5.3: "It is an error for the value of the match 
> attribute to contain a VariableReference". Other restrictions are 
> enumerated in section 5.2. But I wonder whether the rule isn't unclear 
> as it applies to a match pattern in a key declaration, since section 5.3 
> describes template rules.)
>
> Xalan is (probably) being too permissive here -- you shouldn't expect 
> portability of code that uses this "feature".
>
> Because such a thing is so useful, this restriction has been loosened 
> for XSLT 2.0, where any XPath predicate, including one with variable 
> references, may appear in a pattern.
>
> Cheers,
> Wendell
>
> At 09:06 AM 7/11/2005, you wrote:
>
> > Hi all,
> >
> > Can anyone tell me whether it is or isn't conform XSLT (1.0) to use 
> > variable references in template match patterns? I have something like 
> > the following, that is accepted by Xalan, but not by some other parsers:
> >
> >         <!-- top level -->
> >         <xsl:param name="selected" />
> >
> >         <xsl:template match="entry[@id = $selected]">
> >           ...
> >         </xsl:template>
> >
> > I also use variables to add a filter on a key pattern, something like 
> > this:
> >
> >         <xsl:key name="selected-entries" match="entry[@parent-id = 
> > $selected]" use="@id" />
> >
> > Again, Xalan is happy, but some other parsers aren't..
> >
> > Who is right?
>
>
>
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