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Dot Porter wrote:
> Hello List,
>
> Apologies in advance for what is probably a dumb question.
>
> Can <g> ever be empty? 
yes

> That is, can it be used to represent a glyph,
> or must it have  content? 

it can be used to represent a glyph, whether it is empty or not.
> The examples in the Guidelines all have
> content and g.content = text but I thought I'd check.
>
>   
the idea is that what you put inside the <g> might not be portable (it 
might for example be a PUA character) but the @ref of the <g> would 
still point to a glyph or char description to enable me to Do The Right 
Thing when you send me your document



> Thanks,
> Dot
>
>