;;; tvi970.el --- terminal support for the Televideo 970
-;; Copyright (C) 1992, 2001, 2002, 2003, 2004, 2005,
-;; 2006, 2007, 2008 Free Software Foundation, Inc.
+;; Copyright (C) 1992, 2001-2012 Free Software Foundation, Inc.
-;; Author: Jim Blandy <jimb@occs.cs.oberlin.edu>, January 1992
+;; Author: Jim Blandy <jimb@occs.cs.oberlin.edu>
;; Keywords: terminals
+;; Created: January 1992
;; This file is part of GNU Emacs.
;;; Code:
+(eval-when-compile (require 'cl))
+
(defvar tvi970-terminal-map
(let ((map (make-sparse-keymap)))
\f
;; Should keypad numbers send ordinary digits or distinct escape sequences?
-(defun tvi970-set-keypad-mode (&optional arg)
- "Set the current mode of the TVI 970 numeric keypad.
-In ``numeric keypad mode'', the number keys on the keypad act as
-ordinary digits. In ``alternate keypad mode'', the keys send distinct
-escape sequences, meaning that they can have their own bindings,
+(define-minor-mode tvi970-set-keypad-mode
+ "Toggle alternate keypad mode on TVI 970 keypad.
+With a prefix argument ARG, enable the mode if ARG is positive,
+and disable it otherwise. If called from Lisp, enable the mode
+if ARG is omitted or nil.
+
+In ``alternate keypad mode'', the keys send distinct escape
+sequences, meaning that they can have their own bindings,
independent of the normal number keys.
-With no argument, toggle between the two possible modes.
-With a positive argument, select alternate keypad mode.
-With a negative argument, select numeric keypad mode."
- (interactive "P")
- (let ((newval (if (null arg)
- (not (terminal-parameter nil 'tvi970-keypad-numeric))
- (> (prefix-numeric-value arg) 0))))
- (set-terminal-parameter nil 'tvi970-keypad-numeric newval)
- (send-string-to-terminal (if newval "\e=" "\e>"))))
-
-;; arch-tag: c1334cf0-1462-41c3-a963-c077d175f8f0
+
+When disabled, the terminal enters ``numeric keypad mode'', in
+which the keypad's keys act as ordinary digits."
+ :variable (terminal-parameter nil 'tvi970-keypad-numeric)
+ (send-string-to-terminal
+ (if (terminal-parameter nil 'tvi970-keypad-numeric) "\e=" "\e>")))
+
;;; tvi970.el ends here