Re: buffer-swap-text and multibyteness

[Eli Zaretskii]

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> From: Stefan Monnier <address@hidden>
> Cc: address@hidden
> Date: Sat, 31 Jan 2009 16:28:59 -0500
> 
> >> In tar-mode (and the way I imagine buffer-swap-text to be used),
> >> swapping the buffer is a rare operation that's basically only done
> >> when the the major mode changes.
> 
> > In Rmail, we do it each time a new message is being displayed.
> 
> Why???

Because each message needs to be decoded before it is shown.  The
decoded text goes to the rmail-view-buffer, and we then call
rmail-swap-buffers to show the decoded text in the rmail-buffer.  See
rmail-show-message for the gory details.