Re: Creating a coding system

[Eli Zaretskii]

> From: David Kastrup <address@hidden>
> Date: Sat, 20 Dec 2014 15:19:18 +0100
> Cc: address@hidden
> 
> Does decoding not start from a byte stream but rather from an
> emacs-utf-8 encoded version of a byte stream?

If you decode a unibyte string or buffer, then the former; otherwise
the latter.  IOW, you can decode either version, and both should work.

(Caveat: I don't really understand what you are trying to do -- my
fault, not yours -- so I hope I understood this question correctly.)