From 0434c1a9a66a3521348cbca9c1f3bba7765df2d6 Mon Sep 17 00:00:00 2001 From: Richard M Stallman Date: Wed, 30 Sep 2020 18:15:43 -0400 Subject: [PATCH] Clarify previous undo keys change Clarify which terminals allow C-/ and which make C-_ easy to type. --- doc/emacs/basic.texi | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/doc/emacs/basic.texi b/doc/emacs/basic.texi index cde7b475d95..fc856a3acb7 100644 --- a/doc/emacs/basic.texi +++ b/doc/emacs/basic.texi @@ -464,13 +464,13 @@ Normally, this command undoes the last change, moving point back to where it was before the change. The undo command applies only to changes in the buffer; you can't use it to undo cursor motion. - On a graphics terminal (including text-mode frames displayed by a -terminal emulator, such as @command{xterm}), the easiest way to invoke -@code{undo} is with @kbd{C-/}; that doesn't need the Shift key. On a -text terminal, @kbd{C-/} does not exist, but in many cases you can type -@kbd{C-_} without the Shift key (in effect pressing @kbd{C--}) and it -will work anyway, at least with keyboards that produce the US ASCII -character set. + On a terminal that supports the @key{Control} modifier on all other +keys, the easiest way to invoke @code{undo} is with @kbd{C-/}, since +that doesn't need the @key{Shift} modifier. On terminals which allow +only the ASCII control characters, @kbd{C-/} does not exist, but many +of them allow you to omit the @key{Shift} modifier when you type +@kbd{C-_} (in effect pressing @kbd{C--}), making that the most +convenient way to invoke @code{undo}. Although each editing command usually makes a separate entry in the undo records, very simple commands may be grouped together. -- 2.39.2