[xsl] Re: xslt 3.0 possible feature - some sort of collection to help when streaming

["Vladimir Nesterovsky" <vladimir@xxxxxxxxxxxxxxxxxxxx>]

> > xsl:iterate works but it's limited to a single level of iteration, as
> > this way one cannot easily collect output from nested transformations.
>
> Yes, that's correct. The use case for a single recursive tree walk of 
> the input that delivers multiple results was one that the WG found 
> particularly taxing; we tried many different design approaches. The 
> solution currently in the spec (but not yet implemented) is xsl:fork, 
> which essentially allows you to do several traversals of the input tree 
> "in parallel", each delivering a separate result.

I don't quite understand how xsl:fork is going to work in this case.
> From the output perspective isn't it opaque whether xsl:fork is used?
Will it be possible to  store multiple intermediate outputs in variables 
for further processing?
--
Vladimir Nesterovsky
http://www.nesterovsky-bros.com/