& XSLT A. Pagaltzis wrote:

> * Petr Cimprich <petr@[...].cz> [2005-10-17 10:35]:
>   
> 
> >I agree. There should be a way to express that you have no
> >preferences about a prefix. In this event, you could be able
> >set both Prefix and Name to undef. Would this work for most of
> >you?
> >    
> >
> 
> That would work for me, although I donâ??t see why omitting them
> altogether should be a problem. (Heck, if they keys are not set
> and you try to read them, youâ??ll get undef.)
>   
> 

It may be harder for a serializer to understand your intention. While 
setting values to undef explicitly could mean the caller does not want 
any particular prefix for a namespace and passes the task to assign a 
prefix to the next layer, the omission of keys only means the stream is 
incomplete.

Anyway, as we would also need a corresponding rule for *_prefix_mapping 
methods, I would not introduce new rules unless there is a strong demand 
and a wide consensus. Completing fragmentary streams with a filter 
should work well for now.

Petr

-- 
Petr Cimprich
Ginger Alliance
www.gingerall.com

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