Simplify by using `define-derived-mode'.

[gnu-emacs] / lisp / play / mpuz.el

diff --git a/lisp/play/mpuz.el b/lisp/play/mpuz.el
index 5725bc1d82579343ea074e11fcaab9d4b7c86eed..954730c94911a9f0806ffd02ecb378a7c284477c 100644 (file)
--- a/lisp/play/mpuz.el
+++ b/lisp/play/mpuz.el
@@ -1,7 +1,7 @@
 ;;; mpuz.el --- multiplication puzzle for GNU Emacs
 
 ;; Copyright (C) 1990, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
-;;   2009  Free Software Foundation, Inc.
+;;   2009, 2010  Free Software Foundation, Inc.
 
 ;; Author: Philippe Schnoebelen <phs@lsv.ens-cachan.fr>
 ;; Overhauled: Daniel Pfeiffer <occitan@esperanto.org>
@@ -39,7 +39,7 @@
 (random t)                             ; randomize
 
 (defcustom mpuz-silent 'error
-  "*Set this to nil if you want dings on inputs.
+  "Set this to nil if you want dings on inputs.
 t means never ding, and `error' means only ding on wrong input."
   :type '(choice (const :tag "No" nil)
                 (const :tag "Yes" t)
@@ -47,36 +47,36 @@ t means never ding, and `error' means only ding on wrong input."
   :group 'mpuz)
 
 (defcustom mpuz-solve-when-trivial t
-  "*Solve any row that can be trivially calculated from what you've found."
+  "Solve any row that can be trivially calculated from what you've found."
   :type 'boolean
   :group 'mpuz)
 
 (defcustom mpuz-allow-double-multiplicator nil
-  "*Allow 2nd factors like 33 or 77."
+  "Allow 2nd factors like 33 or 77."
   :type 'boolean
   :group 'mpuz)
 
 (defface mpuz-unsolved
   '((((class color)) (:foreground "red1" :bold t))
     (t (:bold t)))
-  "*Face to use for letters to be solved."
+  "Face to use for letters to be solved."
   :group 'mpuz)
 
 (defface mpuz-solved
   '((((class color)) (:foreground "green1" :bold t))
     (t (:bold t)))
-  "*Face to use for solved digits."
+  "Face to use for solved digits."
   :group 'mpuz)
 
 (defface mpuz-trivial
   '((((class color)) (:foreground "blue" :bold t))
     (t (:bold t)))
-  "*Face to use for trivial digits solved for you."
+  "Face to use for trivial digits solved for you."
   :group 'mpuz)
 
 (defface mpuz-text
   '((t (:inherit variable-pitch)))
-  "*Face to use for text on right."
+  "Face to use for text on right."
   :group 'mpuz)
 
 \f
@@ -298,8 +298,7 @@ You may abort a game by typing \\<mpuz-mode-map>\\[mpuz-offer-abort]."
   (let ((buf (get-buffer-create "*Mult Puzzle*"))
        (face '(face mpuz-text))
        buffer-read-only)
-    (save-excursion
-      (set-buffer buf)
+    (with-current-buffer buf
       (erase-buffer)
       (insert mpuz-framework)
       (set-text-properties 13 42 face)
@@ -320,12 +319,14 @@ You may abort a game by typing \\<mpuz-mode-map>\\[mpuz-offer-abort]."
 (defun mpuz-paint-errors ()
   "Paint error count on the puzzle screen."
   (mpuz-switch-to-window)
-  (goto-line 3)
+  (goto-char (point-min))
+  (forward-line 2)
   (mpuz-paint-number (prin1-to-string mpuz-nb-errors)))
 
 (defun mpuz-paint-statistics ()
   "Paint statistics about previous games on the puzzle screen."
-  (goto-line 7)
+  (goto-char (point-min))
+  (forward-line 6)
   (mpuz-paint-number (prin1-to-string mpuz-nb-completed-games))
   (mpuz-paint-number
    (format "%.2f"
@@ -352,7 +353,8 @@ You may abort a game by typing \\<mpuz-mode-map>\\[mpuz-offer-abort]."
                       ('mpuz-unsolved))))
        buffer-read-only)
     (mapc (lambda (square)
-           (goto-line (car square))    ; line before column!
+           (goto-char (point-min))
+           (forward-line (1- (car square)))    ; line before column!
            (move-to-column (cdr square))
            (insert char)
            (set-text-properties (1- (point)) (point) face)