Add defgroups, and use defcustom.

[gnu-emacs] / lisp / auto-show.el

diff --git a/lisp/auto-show.el b/lisp/auto-show.el
index ce36b2e73d29b82715e3250e30a6e80a1815096a..65e2962aa7ae3aac752d30b509f8349bca64b65b 100644 (file)
--- a/lisp/auto-show.el
+++ b/lisp/auto-show.el
@@ -1,3 +1,4 @@
+;;; auto-show.el --- perform automatic horizontal scrolling as point moves
 ;;; This file is in the public domain.
 
 ;;; Keywords: scroll display minor-mode
@@ -41,7 +42,8 @@
 The default value is t.  To change the default, do this:
        (set-default 'auto-show-mode nil)
 See also command `auto-show-mode'.
-This variable has no effect when lines are not being truncated.")
+This variable has no effect when lines are not being truncated.
+This variable is automatically local in each buffer where it is set.")
 
 (make-variable-buffer-local 'auto-show-mode)
 
@@ -62,7 +64,9 @@ visible.  Setting this to 0 disables this feature.")
 ;;;###autoload
 (defun auto-show-mode (arg)
   "Turn automatic horizontal scroll mode on or off.
-With arg, turn auto scrolling on if arg is positive, off otherwise."
+With arg, turn auto scrolling on if arg is positive, off otherwise.
+This mode is enabled or disabled for each buffer individually.
+It takes effect only when `truncate-lines' is non-nil."
   (interactive "P")
   (setq auto-show-mode
        (if (null arg)
@@ -73,7 +77,7 @@ With arg, turn auto scrolling on if arg is positive, off otherwise."
   "Scroll horizontally to make point visible, if that is enabled.
 This function only does something if `auto-show-mode' is non-nil
 and longlines are being truncated in the selected window.
-See also the command `auto-show-toggle'."
+See also the command `auto-show-mode'."
   (interactive)
   (if (and auto-show-mode (auto-show-truncationp)
           (equal (window-buffer) (current-buffer)))