Re: recursive addition

> One question -- what does the attribute @files mean on
> the folder element whose @id="dir1"? It has @files="4",
> but that doesn't seem to enter into the calculation you're
> doing. So the semantics of the XML are a little unclear to me.

Sorry, I guess the example was a little unclear.  I want to sum the files attribute for *all* folders under the initial parent.  So the result I'd want from dir0 would be 25.  The sum of the file attributes of all the folder elements is 27. 

Is that a little clearer?

> To rephrase the above question, are you just summing the attributes
> of leaf folders (as you appear to be in your example where you
> expect the answer to be 9)?

All branches and leaves, but not the trunk. (where an arbitrary starting point is the trunk)

> > Here's an example:
> > <root>
> >    <folder files="2" id="dir0">
> >       <file id="dir1" />
> > 
> >       <file id="dir4" />
> >    </folder>
> > 
> >    <folder files="4" id="dir1">
> >       <file id="dir2" />
> > 
> >       <file id="dir3" />
> >    </folder>
> > 
> >    <folder files="3" id="dir2" />
> > 
> >    <folder files="6" id="dir3" />
> > 
> >    <folder files="7" id="dir4" />
> > 
> >    <folder files="5" id="dir5" />
> > </root>
> > 


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