Pl. try the link

http://lists.fourthought.com/pipermail/4suite/2001-April/001766.html

to see te bug

Regards,
Raj


--- David Carlisle <davidc@xxxxxxxxx> wrote:
> > Beleive it or not there is a strong need of one
> IMHO.
> > there was no need of deprecating xsl:assign or
> fixing
> > a bug
> >  where <xsl:variable name="a" select="$a+1" />
> > worked some time ago.
> 
> ??? No version of XSL has ever allowed such a
> construct.
> I haven't even heard of any processor that had a bug
> that would allow
> such a thing. Why do you think this was allowed
> previously?
> 
> Saxon has a saxon:assign extension that implements a
> assignment system
> but it is much easier to do this in a processor
> specific extension. the
> problem with assignment is that it forces a
> particular evaluation order
> on the code, otherwise the assignments appen in a
> different order and
> the processing order becomes visible. It would be
> virtually impossible
> to specify in general the result  of assignment in
> XSLT as 
> evaluation order is not specified. It is much easier
> to specify the
> result of saxon:assign as it explictly is tied to
> saxon's evaluation
> strategy. I've seen Mike recomend saxon:assign for
> exactly this use: by
> putting such variables in your templates you can get
> informaation on
> what saxon did, how often a template was evaluated
> etc. This can be
> useful debugging information, but isn't expected to
> get the same result
> on different processors.
> 
> David
> 
>
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