Re: ucs-normalize and diacritics

[Eli Zaretskii]

> From: Robert Pluim <address@hidden>
> Date: Wed, 25 Jul 2018 16:45:03 +0200
> 
>        As a special case, if the character lies in the range 128 (0200
>     octal) through 159 (0237 octal), it stands for a raw byte that does not
>     correspond to any specific displayable character.  Such a character lies
>     within the eight-bit-control character set, and is displayed as an
>     escaped octal character code.  In this case, C-x = shows part of
>     display ... instead of file.

This text is obsolete and inaccurate, it should be replaced/rewritten.

> emacs -Q
> C-x C-f /tmp/bin.txt
> C-x 8 RET 80
> C-b
> C-x =
> 
> which gives
> 
> Char: \200 (128, #o200, #x80, file ...) point=1 of 1 (0%) column=0

Try

  C-x 8 RET 3fff80 RET

> I wonder if the manual is out of date?

Yes.  This text is incorrect since Emacs 23.