X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/be520aca79dd429d55012a1916bdc97f06773fc5..a9bc03e28e99ca44a7e009de25fa7084aec4c60c:/lisp/tutorial.el

diff --git a/lisp/tutorial.el b/lisp/tutorial.el
index 77ef50843d..39eb9e8b9a 100644
--- a/lisp/tutorial.el
+++ b/lisp/tutorial.el
@@ -1,6 +1,6 @@
 ;;; tutorial.el --- tutorial for Emacs
 
-;; Copyright (C) 2006-2011 Free Software Foundation, Inc.
+;; Copyright (C) 2006-2013 Free Software Foundation, Inc.
 
 ;; Maintainer: FSF
 ;; Keywords: help, internal
@@ -182,7 +182,7 @@ LEFT and RIGHT are the elements to compare."
                 (equal (car x) (car y)))
       (setq x (cdr x))
       (setq y (cdr y)))
-    ;; Try to make a comparision that is useful for presentation (this
+    ;; Try to make a comparison that is useful for presentation (this
     ;; could be made nicer perhaps):
     (let ((cx (car x))
           (cy (car y)))
@@ -253,7 +253,7 @@ LEFT and RIGHT are the elements to compare."
              ;; * INSERTING AND DELETING
              ;; C-u 8 * to insert ********.
              (delete-backward-char "\d")
-             (delete-forward-char [?\C-d])
+             (delete-char [?\C-d])
              (backward-kill-word [?\M-\d])
              (kill-word [?\M-d])
              (kill-line [?\C-k])
@@ -298,7 +298,7 @@ LEFT and RIGHT are the elements to compare."
              (isearch-backward [?\C-r])
 
              ;; * MULTIPLE WINDOWS
-             (split-window-vertically [?\C-x ?2])
+             (split-window-below [?\C-x ?2])
              (scroll-other-window [?\C-\M-v])
              (other-window [?\C-x ?o])
              (find-file-other-window [?\C-x ?4 ?\C-f])
@@ -585,7 +585,6 @@ with some explanatory links."
 	   (not (get-text-property (match-beginning 1) 'tutorial-remark))
 	   (let* ((desc    (car changed-key))
 		  (ck      (cdr changed-key))
-		  (key     (nth 0 ck))
 		  (def-fun (nth 1 ck))
 		  (where   (nth 3 ck))
 		  s1 s2 help-string)
@@ -724,7 +723,7 @@ See `tutorial--save-tutorial' for more information."
                            saved-file
                            (error-message-string err))))
             ;; An error is raised here?? Is this a bug?
-            (condition-case err
+            (condition-case nil
                 (undo-only)
               (error nil))
             ;; Restore point
@@ -766,14 +765,13 @@ Run the Viper tutorial? "))
 		       (funcall 'viper-tutorial 0))
 	      (message "Tutorial aborted by user"))
 	  (message prompt1)))
-    (let* ((lang (if arg
-                     (let ((minibuffer-setup-hook minibuffer-setup-hook))
-                       (add-hook 'minibuffer-setup-hook
-                                 'minibuffer-completion-help)
-                       (read-language-name 'tutorial "Language: " "English"))
-                   (if (get-language-info current-language-environment 'tutorial)
-                       current-language-environment
-                     "English")))
+    (let* ((lang (cond
+                  (arg
+                   (minibuffer-with-setup-hook #'minibuffer-completion-help
+                     (read-language-name 'tutorial "Language: " "English")))
+                  ((get-language-info current-language-environment 'tutorial)
+                   current-language-environment)
+                  (t "English")))
            (filename (get-language-info lang 'tutorial))
            (tut-buf-name filename)
            (old-tut-buf (get-buffer tut-buf-name))
@@ -830,7 +828,9 @@ Run the Viper tutorial? "))
         (if old-tut-file
             (progn
               (insert-file-contents (tutorial--saved-file))
-	      (let ((enable-local-variables :safe))
+	      (let ((enable-local-variables :safe)
+                    (enable-local-eval nil)
+                    (enable-dir-local-variables nil)) ; bug#11127
 		(hack-local-variables))
               (goto-char (point-min))
               (setq old-tut-point
@@ -847,7 +847,9 @@ Run the Viper tutorial? "))
               (goto-char tutorial--point-before-chkeys)
               (setq tutorial--point-before-chkeys (point-marker)))
           (insert-file-contents (expand-file-name filename tutorial-directory))
-	  (let ((enable-local-variables :safe))
+	  (let ((enable-local-variables :safe)
+                (enable-local-eval nil)
+                (enable-dir-local-variables nil)) ; bug#11127
 	    (hack-local-variables))
           (forward-line)
           (setq tutorial--point-before-chkeys (point-marker)))
@@ -889,6 +891,11 @@ Run the Viper tutorial? "))
                  (search-forward ">>")
                  (replace-match "]")))
           (beginning-of-line)
+          ;; FIXME: if the window is not tall, and especially if the
+          ;; big red "NOTICE: The main purpose..." text has been
+          ;; inserted at the start of the buffer, the "type C-v to
+          ;; move to the next screen" might not be visible on the
+          ;; first screen (n < 0).  How will the novice know what to do?
           (let ((n (- (window-height (selected-window))
                       (count-lines (point-min) (point))
                       6)))
@@ -897,7 +904,7 @@ Run the Viper tutorial? "))
                   ;; For a short gap, we don't need the [...] line,
                   ;; so delete it.
                   (delete-region (point) (progn (end-of-line) (point)))
-                  (newline n))
+                  (if (> n 0) (newline n)))
               ;; Some people get confused by the large gap.
               (newline (/ n 2))