Bug report: Key bindings in .emacs don't work as expected when using the emacs daemon

Bug report: Key bindings in .emacs don't work as expected when using the emacs daemon

[Johannes Rauh]

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Good day,

I have the following problem, which I have already posted under http://bugs.gentoo.org/show_bug.cgi?id=289709.

I use my .emacs file to set some key bindings:

(global-set-key [M-delete] 'kill-word)
(global-set-key [M-backspace] 'backward-kill-word)

This works as expected if I start emacs from the command line.  However,
if I use the emacs-daemon, then these keys are not set correctly: In fact, they are switched (which seems to be the standard behaviour if I put nothing into .emacs at all).

A workaround is: Start emacs after the daemon has loaded, open .emacs and execute these two lines by hand.

This also happens if I start the emacs daemon after initializing X (so in particular it should have nothing to do with xmodmap).

I used to have this problem before with different keys, namely the buttons XF86Back and XF86Forward on my ThinkPad laptop, which used to be mapped to F19 and F20 some xorg-server-versions before.

Regards,

Johannes 		 	   		  
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Re: Bug report: Key bindings in .emacs don't work as expected when using the emacs daemon

[Stefan Monnier]

> I have the following problem, which I have already posted under http://bugs.gentoo.org/show_bug.cgi?id=289709.

Thanks, I've installed the patch below which should fix your problem.
In the future, please use M-x report-emacs-bug so your bug gets assigned
a number in our tracker.


        Stefan


Index: lisp/ChangeLog
===================================================================
RCS file: /sources/emacs/emacs/lisp/ChangeLog,v
retrieving revision 1.16479
diff -u -r1.16479 ChangeLog
--- lisp/ChangeLog	22 Oct 2009 16:14:49 -0000	1.16479
+++ lisp/ChangeLog	22 Oct 2009 19:31:30 -0000
@@ -1,5 +1,10 @@
 2009-10-22  Stefan Monnier  <monnier@iro.umontreal.ca>
 
+	* simple.el (normal-erase-is-backspace-mode): Use input-decode-map
+	rather than fiddling with global-map bindings, since it should only
+	affect per-terminal settings.
+	See http://bugs.gentoo.org/show_bug.cgi?id=289709.
+
 	* minibuffer.el (completion-table-with-terminator): Allow to specify
 	the terminator-regexp.
 
Index: lisp/simple.el
===================================================================
RCS file: /sources/emacs/emacs/lisp/simple.el,v
retrieving revision 1.1018
diff -u -r1.1018 simple.el
--- lisp/simple.el	22 Oct 2009 15:27:20 -0000	1.1018
+++ lisp/simple.el	22 Oct 2009 19:31:30 -0000
@@ -6415,31 +6415,27 @@
 	   (let* ((bindings
 		   `(([M-delete] [M-backspace])
 		     ([C-M-delete] [C-M-backspace])
-		     (,esc-map
-		      [C-delete] [C-backspace])))
+		     ([?\e C-delete] [?\e C-backspace])))
 		  (old-state (lookup-key local-function-key-map [delete])))
 
 	     (if enabled
 		 (progn
 		   (define-key local-function-key-map [delete] [?\C-d])
 		   (define-key local-function-key-map [kp-delete] [?\C-d])
-		   (define-key local-function-key-map [backspace] [?\C-?]))
+		   (define-key local-function-key-map [backspace] [?\C-?])
+                   (dolist (b bindings)
+                     ;; Not sure if input-decode-map is really right, but
+                     ;; keyboard-translate-table (used below) only works
+                     ;; for integer events, and key-translation-table is
+                     ;; global (like the global-map, used earlier).
+                     (define-key input-decode-map (car b) nil)
+                     (define-key input-decode-map (cadr b) nil)))
 	       (define-key local-function-key-map [delete] [?\C-?])
 	       (define-key local-function-key-map [kp-delete] [?\C-?])
-	       (define-key local-function-key-map [backspace] [?\C-?]))
-
-	     ;; Maybe swap bindings of C-delete and C-backspace, etc.
-	     (unless (equal old-state (lookup-key local-function-key-map [delete]))
-	       (dolist (binding bindings)
-		 (let ((map global-map))
-		   (when (keymapp (car binding))
-		     (setq map (car binding) binding (cdr binding)))
-		   (let* ((key1 (nth 0 binding))
-			  (key2 (nth 1 binding))
-			  (binding1 (lookup-key map key1))
-			  (binding2 (lookup-key map key2)))
-		     (define-key map key1 binding2)
-		     (define-key map key2 binding1)))))))
+	       (define-key local-function-key-map [backspace] [?\C-?])
+               (dolist (b bindings)
+                 (define-key input-decode-map (car b) (cadr b))
+                 (define-key input-decode-map (cadr b) (car b))))))
 	  (t
 	   (if enabled
 	       (progn