From: Glenn Morris <rgm@gnu.org>
Date: Mon, 29 Jul 2002 12:57:31 +0000 (+0000)
Subject: (scroll-all-mode): Handle numeric arg.  Use `if' instead of `cond'.
X-Git-Tag: emacs-pretest-21.2.91~141
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=eaa354753581ac39a5aaaf03d4878c5f75ff5111;p=emacs.git

(scroll-all-mode): Handle numeric arg.  Use `if' instead of `cond'.
---

diff --git a/lisp/scroll-all.el b/lisp/scroll-all.el
index b5ab1316b4c..21f6e6b9c39 100644
--- a/lisp/scroll-all.el
+++ b/lisp/scroll-all.el
@@ -127,12 +127,12 @@ use either M-x customize or the function `scroll-all-mode'."
 (defun scroll-all-mode (arg)
   "Toggle Scroll-All minor mode."
   (interactive "P")
-  (setq scroll-all-mode (not scroll-all-mode))
-  (cond
-   ((eq scroll-all-mode 't)
-    (add-hook 'post-command-hook 'scroll-all-check-to-scroll))
-   ((eq scroll-all-mode 'nil)
-    (remove-hook 'post-command-hook 'scroll-all-check-to-scroll))))
+  (setq scroll-all-mode
+ 	(if (null arg) (not scroll-all-mode)
+ 	  (> (prefix-numeric-value arg) 0)))
+  (if scroll-all-mode
+      (add-hook 'post-command-hook 'scroll-all-check-to-scroll)
+    (remove-hook 'post-command-hook 'scroll-all-check-to-scroll)))
 
 (provide 'scroll-all)