Re: non-ASCII characters in auto-save files

[Xah Lee]

On Jun 27, 9:44 am, Eli Zaretskii <e...@gnu.org> wrote:
> > From: Xah Lee <xah...@gmail.com>
> > Date: Wed, 27 Jun 2012 04:52:41 -0700 (PDT)
>
> > i thought emacs 23/24 uses a superset of utf-8 as internal encoding?
>
> It does.

hi Eli, thanks for confirmation.

> > so that i thought those #autosave# files are encoded in utf-8, and as
> > long as one open them with utf-8 decoding all chars would show. Is
> > this not correct?
>
> Not 100%, because it's a superset.  That is, there could be codes
> there that UTF-8 will fail to decode.

that's interesting. What's some examples? e.g. What chars in emacs's
encoding that's different from utf-8 encoding? I've been wondering why
it needs to be a superset.

 Xah