Re: [xsl] finding elements lowest in hierarchy?

[Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>]

At 10:38 AM 1/27/2004, Ken wrote:
> Just skip the predicate that qualifies the node as being at the bottom, 
> and you end up with:
>
>   test=".//*[@minimum]"
>
> as the boolean test of any elements with the attribute.  Alternatively 
> since all you are doing is testing you could just have:
>
>   test=".//*/@minimum"
>
> to address the attributes, but the way you worded it you wanted to address 
> the elements that have the attribute.

Also, the latter amounts to .//@minimum, if you also want it to test true 
if a node itself has an attribute called "minimum".

Remember (as was recently noticed) // is short for 
/descendant-or-self::node()/, so .//@minimum expands to

self::node()/descendant-or-self::node()/attribute::minimum

which tests true if the context node or any of its descendants has a 
"minimum" attribute.

To restrict it to leaf nodes (defined as elements with no element 
children), insert the same predicate to filter for that

./descendant-or-self::*[not(*)]/@minumum

You'll learn all this and more if you take Ken's XSLT/XPath course or 
Mulberry's. :->

Cheers,
Wendell


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