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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:274185 Archived-At: On 05.09.2021 06:44, Richard Stallman wrote: > I think undo/redo instead of undo-only might be an improvement in > Emacs, and might not be hard to get used to as a change -- if only we > can find a key binding for redo. I know we had a discussion of > this before. Let me do a recap. We proposed the keys that a reasonably popular 11 year old package called undo-tree uses: 'C-?' and 'M-_'. You replied that those seem inconvenient because C-? is not available on ttys, and both C-? and M-_ require two shift keys. Others replied later that users generally expect 'redo' to require one more modifier than 'undo'. In graphical Emacs, it can work out to having 'C-/' call 'undo', then one can additionally hold down the Shift key to the right of '/', calling 'redo' with the resulting 'C-?'. Alas, there would be no such easy transition in terminal Emacs, but other than that, requiring an extra modifier key is not inherently a problem. The user should be able to switch between C-- and M-S-- and back without too much trouble. In the same discussion T.V. Raman mentioned that he has bound 'undo-redo' to 'C-x C-u', to stay close to 'C-x u', another default binding for 'undo'. 'C-x C-u' is unfortunately occupied, but it's a disabled command, so maaaybe we could take over the binding? Or use 'C-x U'.