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Re: RE: Postional predicates de-mystified

Subject: Re: RE: Postional predicates de-mystified
From: Dimitre Novatchev <dnovatchev@xxxxxxxxx>
Date: Fri, 4 Jan 2002 05:29:10 -0800 (PST)
 Re: RE: Postional predicates de-mystified
> > <xsl:value-of select=" for $i in 1 to count(ancestor::*)
> >    return name((ancestor::*)[$i])" separator = "/"/> 
> >
> > Provides the 'path' to the current node! Pretty neat.
> > (or should I be saying a document order sequence?)
> I think Dave was trying out the numeric predicates, but more neatly,
> you could just use:
>   <xsl:value-of select="for $e in ancestor::* return name($e)"
>                 separator="/" />

This is indeed quite powerful, however in order to obtain the "path" to the current
node there still must be:

 1. The starting "/" for the root node. This could be obtained by changing the
expression to:

   <xsl:value-of select="for $e in ancestor::node() return name($e)"
                 separator="/" />

 2. The path has to include the current node. Therefore something like this will be

   <xsl:value-of select="for $e in ancestor-or-self::node() return name($e)"
                 separator="/" />

  but this will not work for non-element nodes...

 3. Most important, positional information will not be included, so for example:


will produce:


 4. Maybe I'm wrong, but shouldn't this be: separator="'/'" ?

Dimitre Novatchev.

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