Re: [xsl] Should "//ename[n]" mean "/descendant::ename"?

[Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>]

Jonathan,

Under what you are proposing,

> >//ename[n]
> >=> /descendant::ename[n]
> >
> >//@aname[n]
> >=> /descendant::*/attribute::aname[n]

e//@aname would not return an 'aname' attribute associated with the 'e' 
element, only those associated with descendants.

I think there are other similar concerns, with such XPaths as 
e//following-sibling::e2 and the like.

I think when Clark and DeRose proposed '//' for 
'/descendant-or-self::node()/' they did an excellent job thinking through 
the implications: in practice, it works. What you have noted about the 
behavior of the implicit position() function in the predicate is, it is 
true, non-intuitive behavior if you take shortcuts to learning XPath (and 
who doesn't?) -- but I'd be wary of changing something this basic to fix 
something without carefully looking to see what I might be breaking with my 
fix.

Cheers,
Wendell



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Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
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