RE: Hierarchy problem

Thanks Jeni. 
David M suggested starting from the child and looking at the parent,
I'll spend some time on that.




> On the set logic stuff. The general pattern is:
> 
>   count($node-set | $node) = count($node-set)
> 
> is true only if $node is in the node set $node-set.

<shhh, don't let DC read this> 'is in the nodeset' I interpreted
as '$node is a member of $node-set' </sssh>

I guess this works even if $node is *anywhere* in the document tree.
Just so long as its been collected into $node-set by some means.

> 
> You can make the $node-set be the children of $x:
> 
>   count($x/* | $node) = count($x/*)
> 
> in which case you're testing whether $node is a child of $x, or you
> can make the $node-set be the descendants of $x:
> 
>   count($x//* | $node) = count($x//*)
> 
> in which case you're testing whether $node is one of the descendants
> of $x.

I think that's sunk in now Jeni, I'll find out next time I come to use it!

THanks again peoples.
regards DaveP




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