Remove unread-command-char.

* src/keyboard.c (read_char, requeued_events_pending_p, Finput_pending_p)
(Fdiscard_input, quit_throw_to_read_char, init_keyboard)
(syms_of_keyboard): Remove support for unread-command-char.
* lisp/emacs-lisp/debug.el (debugger-outer-unread-command-char, debug)
(debugger-env-macro): Remove support for unread-command-char.

* lisp/ehelp.el (with-electric-help): Accept functions in
electric-help-form-to-execute.
(electric-help-execute-extended, electric-help-ctrl-x-prefix): Use it.
And replace unread-command-char -> unread-command-events.

* lisp/subr.el (set-temporary-overlay-map): Minimize slightly the impact of
the temporary map re-appearing on emulation-mode-map-alists.

* lisp/emacs-lisp/edebug.el (def-edebug-form-spec): Remove, it's been broken
since 22.1.

1 files changed, 10 insertions, 3 deletions

diff --git a/lisp/ehelp.el b/lisp/ehelp.el
index abb897f73f6..281148d9cf6 100644
--- a/lisp/ehelp.el
+++ b/lisp/ehelp.el
@@ -193,7 +193,9 @@ BUFFER is put back into its original major mode."
         (replace-buffer-in-windows buffer)
         ;; must do this outside of save-window-excursion
         (bury-buffer buffer))
-      (eval electric-help-form-to-execute))))
+      (if (functionp electric-help-form-to-execute)
+          (funcall electric-help-form-to-execute)
+        (eval electric-help-form-to-execute)))))
 
 (defun electric-help-command-loop ()
   (catch 'exit
@@ -349,14 +351,19 @@ will select it.)"
 ;; continues with execute-extended-command.
 (defun electric-help-execute-extended (_prefixarg)
   (interactive "p")
-  (setq electric-help-form-to-execute '(execute-extended-command nil))
+  (setq electric-help-form-to-execute
+        (lambda () (execute-extended-command nil)))
   (electric-help-retain))
 
 ;; This is to be buond to C-x in ehelp mode. Retains ehelp buffer and then
 ;; continues with ctrl-x prefix.
 (defun electric-help-ctrl-x-prefix (_prefixarg)
   (interactive "p")
-  (setq electric-help-form-to-execute '(progn (message nil) (setq unread-command-char ?\C-x)))
+  (setq electric-help-form-to-execute
+        (lambda ()
+          (message nil)
+          (setq unread-command-events
+                (append unread-command-events '(?\C-x)))))
   (electric-help-retain))