[RFC] Doubts about digit grouping corner cases

[Martin Sebor]

Nathan Myers wrote:

...
> It's unfortunate that DR358 (thanks Martin) didn't address the whole 
> issue, and that I wasn't equipped to participate at the time.  The 
> correct fix would have been to reference the BNF, and terminate 
> extraction as soon as the BNF was violated.  Sigh.

We can still do that in the course of addressing the related 'e'/'E'
problem. Unless you already plan on doing it, let me take a stab at
incorporating the grammar into the proposed resolution. It would be
helpful if you could look it over before I send it to Matt :)

Martin