Re: Extracting the grouping from a flat structure

On Wednesday 08 December 2004 00:52, Peter Wyngaard wrote:
> Kev --
>
> Wow.  That's quite a solution.  I did not know about the
> node-set function, which is available in xalan as
> 'xalan:nodeset'.  When you had described the two-pass
> solution, I was thinking about piping two XSL transforms
> together (i.e., two separate stylesheets processed one
> after the other).  I did not know that you could put
> trees into a variable and process them with node-set. 
> That's very cool.

It is rather handy, saves a lot of messing around with 
multiple transforms. As well as its use for indexing you 
can use the same technique to split transforms into 
independent phases which you can combine in different 
orders as needed.

>
> I implemented your solution, and it is a little bit
> faster.  But only about 7% faster, unfortunately.  On a
> sample XML file, it takes around 3000ms on average using
> my old method, and about 2800ms on average using your
> solution.
>

That is a bit poor. I was expecting more but this stuff is 
always processor specific. If you let me know what 
processor and version you are on I will take another go at 
it. I am sure there must be a quicker solution than this.

Kev.