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That's all we know. X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.25, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, NICE_REPLY_A=-1.543, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." 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:255453 Archived-At: On 13.09.2020 06:57, Richard Stallman wrote: > [[[ To any NSA and FBI agents reading my email: please consider ]]] > [[[ whether defending the US Constitution against all enemies, ]]] > [[[ foreign or domestic, requires you to follow Snowden's example. ]]] > > There are two problems with C-?: > > * It requires two shift keys, so it is inconvenient. Do you mean two modifier keys? It's just one shift key. C-? is the same as C-S-/, at least in GUI version. > (The bindings for undo ensure it can be typed with just one > shift key on all usual terminals.) C-_, one of the two existing bindings for 'undo', has the exact same problem. Which, for undo, is more significant, I'd say. > * It does not exist at all on ttys. (I don't know whether we can > change that on Linux consoles.) I don't know either. It _is_ a drawback, especially for users who tend to switch between GUI and terminal, but I don't have any better suggestions about that. But as far as new users are concerned, GUI Emacs is a lot more popular. > Whether constitutes a problem for the undo-redo feature depends on the > precise meanings of the two commands. I don't know those details > so I can't judge. I don't think it is. As Juri said, the target audience of this feature expects 'undo' to be on Ctrl-Z and 'redo' on Ctrl-Shift-Z (though many editors bind it to Ctrl-Y as well). > M-_ is likewise inconvenient because of the need for two shift keys. I guess you do mean "two modifier keys". See above.