[Issue 6925] Thousands grouping syntax in writef?

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=6925

--- Comment #4 from Berni44 <bugzilla at bernis-buecher.de> ---
(In reply to Andrei Alexandrescu from comment #3)
> A way to keep purity with locales would be to pass the locale into the
> functions, e.g.
> 
> writef(mylocale, "%.2,f", 1234567.89);

Sure, but it would make the functions much more complicated - for example think
of different digit shapes used in some areas of the world or even printing from
right to left (what's the minus-flag supposed to do in that case?)... I'd
prefer to have localization in a wrapper in a different module.

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