[RFC] Doubts about digit grouping corner cases

[Paolo Carlini]

Paolo Carlini wrote:

> Not just so, something much stronger: Stage2
> may terminate *only* because in == end, not for different reasons,
> like two consecutive true discard!!!

Of course, Stage2 also terminates if the character is neither discarded
nor accumulated, sorry about that. But, this is my real point, a discarded
char (a thousand separator, that is) cannot terminate Stage2!!!

Paolo.