Martin Holmes wrote:
> Thanks to both of you for this. I'm inclined to go with the RelaxNG 
> implementation for simplicity's sake when editing, because presumably 
> oXygen can then help with auto-completion and so on. That means the 
> customization can't be documented through ODD, though. This must 
> surely be a fairly common type of customization, though. Is there any 
> chance Roma and ODD might support it? I appreciate how hard it would 
> likely be to do this for Roma, but it would be nice if ODD could 
> handle it, for the sake of documentation, even if Roma can't then 
> generate a schema from it.
the correct way to handle this would be if you or someone else proposed 
a syntax
in ODD, and I could then implement a trial version of it in a non-TEI 
namespace.

I confess, I don't off-hand see how to do it.

-- 
Sebastian Rahtz      
Information Manager, Oxford University Computing Services
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