Re: Disambiguate modeline character for UTF-8?

[Stefan Monnier]

> Presumably UTF-8 is the most popular coding system today. Nevertheless,
> it shares its mnemonic character displayed in the modeline with several
> others (while legacy codings like ISO-8859-1 have their unique char):
>
>    U -- utf-8*  (all variants)
>    U -- utf-16* (all variants)
>    U -- utf-7
>    u -- utf-7-imap
>    U -- koi8-u

Agreed.

> I wonder if this could be disambiguated, such that "U" would be used
> exclusively for UTF-8 and its variants. For example, as follows:
>
>    U -- utf-8*  (all variants)
>    u -- utf-16* (all variants)
>    m -- utf-7*  (Mnemonic: "m" for mail-safe or MIME)
>    Y -- koi8-u  (Mnemonic: "Y" looks similar to 1st letter in "Українська")
>
> WDYT?

Yay, bikeshedding ;-)

I don't see a strong reason to limit ourselves to a single char, FWIW,
so I think `u7` is fine for utf-7* (it should be very rare anyway).


        Stefan