Re: Different (buffer-file-)coding-systems for different regions of one buffer? (for Rmail MIME)

[Richard Stallman]

    That's assuming that it is text.  This implementation would make
    corruption of attached binaries likely and signed messages somewhat
    likely

I don't think so.  Why would you edit a binary attachment?

    But you don't have the original text any more (except in the disk
    file).

I have the impression we are not talking about the same thing.