Re: Rmail changes for Emacs 22

[Richard Stallman]

    (1) A simple way:

    Decode only when we need the contents of a message (e.g. for
    displaying or searching).

    This may be slow on searching all messages repeatedly.

This could be a good point about searching.  But maybe computers
now are so fast that it is ok.

We should try to avoid all methods that use more than one buffer.

Another idea is to decode all the messages when the contents are
wanted the first time, and leave the decoded message in the buffer in
place of the original.  The original could be found in the file if
needed (if the user gives a command to "please decode again with a
different coding system").