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, 0 insertions, 11 deletions

diff --git a/doc/lispref/commands.texi b/doc/lispref/commands.texi
index 7e24de94fbe..dc0fa4c639d 100644
--- a/doc/lispref/commands.texi
+++ b/doc/lispref/commands.texi
@@ -2738,17 +2738,6 @@ This function converts the string or vector @var{key} to a list of
 individual events, which you can put in @code{unread-command-events}.
 @end defun
 
-@ignore
-@defvar unread-command-char
-This variable holds a character to be read as command input.
-A value of -1 means ``empty''.
-
-This variable is mostly obsolete now that you can use
-@code{unread-command-events} instead; it exists only to support programs
-written for Emacs versions 18 and earlier.
-@end defvar
-@end ignore
-
 @defun input-pending-p
 @cindex waiting for command key input
 This function determines whether any command input is currently