Re: how do indirection in value-of or select?

[Michael Koehrsen <koehrsen@xxxxxxxxx>]

> 
> I would like to be able to say:
> 
>     <xsl:template match="/a/blist/b">
>         <xsl:apply-templates select="name"/>
>         <xsl:apply-templates select='/a/clist/c[d=@n]'/>
>     </xsl:template>
> 

You're implicitly assuming that the @n is going to be resolved against
the node matched by the containing template, rather than the node being
tested by the select pattern.  This strikes me as kind of an ad-hoc
extension to existing pattern semantics.  I think this example leads
back to the general problem of needing to be able to store some local
state in templates.  If we had local constants, for example, you could
do:

    <xsl:template match="/a/blist/b">
      <xsl:apply-templates select="name"/>
      <xsl:constant name="n" value="{@n}"/>
      <xsl:apply-templates select='/a/clist/c/[d=constant(n)]'/>
    </xsl:template>

This requires a change to pattern syntax, but the semantics are
straightforward and consistent.

MJK


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