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master 8343c2d5f6 2/3: Merge from origin/emacs-28
From: |
Stefan Kangas |
Subject: |
master 8343c2d5f6 2/3: Merge from origin/emacs-28 |
Date: |
Mon, 9 May 2022 00:54:20 -0400 (EDT) |
branch: master
commit 8343c2d5f6f470458bdedc3283d0e9beecb07620
Merge: 1a21535725 1d012e0a62
Author: Stefan Kangas <stefan@marxist.se>
Commit: Stefan Kangas <stefan@marxist.se>
Merge from origin/emacs-28
1d012e0a62 Linux console: don't translate ESC TAB to `backtab' in inp...
---
etc/PROBLEMS | 27 +++++++++++++++++++++++++++
lisp/term/linux.el | 4 ++++
2 files changed, 31 insertions(+)
diff --git a/etc/PROBLEMS b/etc/PROBLEMS
index 270de600d6..3e0b73a4d5 100644
--- a/etc/PROBLEMS
+++ b/etc/PROBLEMS
@@ -1874,6 +1874,33 @@ this, you can remove the X resource or put this in your
init file:
(xterm-remove-modify-other-keys)
+** The shift TAB key combination works as meta TAB on a Linux console.
+
+This happens because on your keyboard layout, S-TAB produces the same
+keycodes as typing ESC TAB individually. The best way to solve this
+is to modify your keyboard layout to produce different codes, and tell
+Emacs what these new codes mean.
+
+The current keyboard layout will probably be a .map.gz file somewhere
+under /usr/share/keymaps. Identify this file, possibly from a system
+initialization file such as /etc/conf.d/keymaps. Run gunzip on it to
+decompress it, and amend the entries for keycode 15 to look something
+like this:
+
+keycode 15 = Tab
+ alt keycode 15 = Meta_Tab
+ shift keycode 15 = F219
+string F219 = "\033[4}\011" # Shift+<tab>
+
+After possibly saving this file under a different name, compress it
+again using gzip. Amend /etc/conf.d/keyamps, etc., if needed.
+Further details can be found in the man page for loadkeys.
+
+Then add the following line near the start of your site-start.el or
+.emacs or init.el file:
+
+(define-key input-decode-map "\e[4}\t" 'backtab)
+
** Emacs spontaneously displays "I-search: " at the bottom of the screen.
This means that Control-S/Control-Q (XON/XOFF) "flow control" is being
diff --git a/lisp/term/linux.el b/lisp/term/linux.el
index 6d43e477ac..ab5a6d8698 100644
--- a/lisp/term/linux.el
+++ b/lisp/term/linux.el
@@ -17,6 +17,10 @@
(ignore-errors (when gpm-mouse-mode (require 't-mouse) (gpm-mouse-enable)))
+ ;; Don't translate ESC TAB to backtab as directed
+ ;; by ncurses-6.3.
+ (define-key input-decode-map "\e\t" nil)
+
;; Make Latin-1 input characters work, too.
;; Meta will continue to work, because the kernel
;; turns that into Escape.