Re: bug#2553: *vc-diff* buffers are read-only, but M-k works

[Lars Magne Ingebrigtsen]

Stefan Monnier <address@hidden> writes:

>> Perhaps a more general solution would be possible here.  I think there
>> probably are other "mostly-read-only" modes where you have one or two
>> special commands that alter the buffer, anyway.  Like with `M-k'.
>> Perhaps there could be a buffer-local variable like
>> `undo-read-only-buffer' that if set, would allow `undo' to work in these
>> cases.
>
> Or we could record in the buffer-undo-list the fact the the modification
> was done with inhibit-read-only bound to non-nil, and bind it similarly
> during the undo.

That would be even better, and is even more general.

-- 
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