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[gnu-emacs] / lisp / international / iso-ascii.el

diff --git a/lisp/international/iso-ascii.el b/lisp/international/iso-ascii.el
index 07c72e8ffd40d451daf48d8d77ba1327f772e6e0..4e8c76a69908609be61a087b55c4fb9c4d18fc58 100644 (file)
--- a/lisp/international/iso-ascii.el
+++ b/lisp/international/iso-ascii.el
@@ -1,10 +1,10 @@
 ;;; iso-ascii.el --- set up char tables for ISO 8859/1 on ASCII terminals
 
-;; Copyright (C) 1987, 1995, 1998, 2001, 2002, 2003, 2004, 2005, 2006,
-;;   2007, 2008, 2009, 2010, 2011  Free Software Foundation, Inc.
+;; Copyright (C) 1987, 1995, 1998, 2001-2016 Free Software Foundation,
+;; Inc.
 
 ;; Author: Howard Gayle
-;; Maintainer: FSF
+;; Maintainer: emacs-devel@gnu.org
 ;; Keywords: i18n
 
 ;; This file is part of GNU Emacs.
@@ -33,7 +33,6 @@
 ;;; Code:
 
 (require 'disp-table)
-(eval-when-compile (require 'cl))
 
 (defgroup iso-ascii nil
   "Set up char tables for ISO 8859/1 on ASCII terminals."
@@ -164,10 +163,18 @@
 (iso-ascii-display 255 "\"y") ; small y with diaeresis or umlaut mark
 
 (define-minor-mode iso-ascii-mode
-  "Toggle ISO-ASCII mode."
-  :variable (eq standard-display-table iso-ascii-display-table)
-  (unless standard-display-table
-    (setq standard-display-table iso-ascii-standard-display-table)))
+  "Toggle ISO-ASCII mode.
+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."
+  :variable ((eq standard-display-table iso-ascii-display-table)
+             . (lambda (v)
+                 (setq standard-display-table
+                       (cond
+                        (v iso-ascii-display-table)
+                        ((eq standard-display-table iso-ascii-display-table)
+                         iso-ascii-standard-display-table)
+                        (t standard-display-table))))))
 
 (provide 'iso-ascii)