Re: [xsl] Does the count() function require access to the whole subtree?

On 14 Jan 2014, at 10:11, Costello, Roger L. <costello(_at_)mitre(_dot_)org> 
wrote:

> Yesterday Michael Kay wrote:
>
>       //x is a "crawling" expression - one that selects 
>       nodes which may overlap each other.
>
> Michael, I do not understand what you mean by "overlap". It seems like an 
> important concept, since you have used that word repeatedly.
I mean that within the set of nodes selected by //x, there may be two nodes A 
and B such that A is an ancestor of B.

(I'm not using the term overlap in the sense of non-hierarchic markup: perhaps 
that's the cause of any confusion).

Michael Kay
Saxonica


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