Re: Measuring the complexity of XSLT stylesheets

Lars Marius Garshol wrote:

> I'm interested in the complexity of the stylesheet as perceived by a
> human being. So a better measure for my purposes would be something
I think that many people think about XML as about hierarchical way of 
describing/storing data. XSLT by default traverses XML data from the 
root to the leaves using templates. If you need to access other axes 
than child and descendant in your stylesheet, then there is usualy some 
complexity behind your data from human perspecitive of view. So counting 
number of XPath expressions that use different axes than child and 
descendant might give you some metric not completely unrelated to 
complexity of input data and their processing. Or you can assign 
different weight to differents axes to make it more "scientific".
Each expression measured should be weighted by number of times it was 
really evaluated what is really hard to do in a general way but you can 
measure it quite easily using some XSLT profiler on real data.
                                Jirka

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  Jirka Kosek     e-mail: jirka(_at_)kosek(_dot_)cz     http://www.kosek.cz
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