Use define-minor-mode where applicable.

* mh-show.el (mh-showing-mode): Move function to mh-e.el.
* mh-e.el (mh-showing-mode):
* url-dired.el (url-dired-minor-mode):
* org-table.el (orgtbl-mode):
* view.el (view-mode):
* type-break.el (type-break-query-mode)
(type-break-mode-line-message-mode):
* textmodes/reftex.el (reftex-mode):
* term/vt100.el (vt100-wide-mode):
* tar-mode.el (tar-subfile-mode):
* savehist.el (savehist-mode):
* ibuf-ext.el (ibuffer-auto-mode):
* composite.el (auto-composition-mode):
* progmodes/vhdl-mode.el (vhdl-electric-mode, vhdl-stutter-mode):
Use define-minor-mode.
(vhdl-mode): Use static mode-line format.
(vhdl-mode-line-update): Delete.
(vhdl-create-mode-menu, vhdl-activate-customizations)
(vhdl-hs-minor-mode): Don't bother calling it.

2 files changed, 48 insertions, 53 deletions

diff --git a/lisp/org/ChangeLog b/lisp/org/ChangeLog
index 770fd883e2c..b4675723096 100644
--- a/lisp/org/ChangeLog
+++ b/lisp/org/ChangeLog
@@ -1,8 +1,11 @@
+2010-05-03  Stefan Monnier  <monnier@iro.umontreal.ca>
+
+	* org-table.el (orgtbl-mode): Use define-minor-mode.
+
 2010-04-10  Carsten Dominik  <carsten.dominik@gmail.com>
 
-	* org.el (org-insert-link): Find the link buffer on visible
-	frames.
-	(org-export-latex-default-packages-alist): hyperref must be loaded
+	* org.el (org-insert-link): Find the link buffer on visible frames.
+	(org-export-latex-default-packages-alist): Hyperref must be loaded
 	late.
 	(org-open-file): More care with the new matching for file links.
 
diff --git a/lisp/org/org-table.el b/lisp/org/org-table.el
index 24c02a658ba..98c48baf52c 100644
--- a/lisp/org/org-table.el
+++ b/lisp/org/org-table.el
@@ -3401,11 +3401,6 @@ Use COMMAND to do the motion, repeat if necessary to end up in a data line."
 ;; active, this binding is ignored inside tables and replaced with a
 ;; modified self-insert.
 
-(defvar orgtbl-mode nil
-  "Variable controlling `orgtbl-mode', a minor mode enabling the `org-mode'
-table editor in arbitrary modes.")
-(make-variable-buffer-local 'orgtbl-mode)
-
 (defvar orgtbl-mode-map (make-keymap)
   "Keymap for `orgtbl-mode'.")
 
@@ -3426,49 +3421,51 @@ table editor in arbitrary modes.")
 	      0 (quote 'org-table) 'prepend))
   "Extra font-lock-keywords to be added when orgtbl-mode is active.")
 
+;; Install it as a minor mode.
+(put 'orgtbl-mode :included t)
+(put 'orgtbl-mode :menu-tag "Org Table Mode")
 ;;;###autoload
-(defun orgtbl-mode (&optional arg)
+(define-minor-mode orgtbl-mode
   "The `org-mode' table editor as a minor mode for use in other modes."
-  (interactive)
+  :lighter " OrgTbl" :keymap orgtbl-mode-map
   (org-load-modules-maybe)
-  (if (org-mode-p)
-      ;; Exit without error, in case some hook functions calls this
-      ;; by accident in org-mode.
-      (message "Orgtbl-mode is not useful in org-mode, command ignored")
-    (setq orgtbl-mode
-	  (if arg (> (prefix-numeric-value arg) 0) (not orgtbl-mode)))
-    (if orgtbl-mode
-	(progn
-	  (and (orgtbl-setup) (defun orgtbl-setup () nil))
-	  ;; Make sure we are first in minor-mode-map-alist
-	  (let ((c (assq 'orgtbl-mode minor-mode-map-alist)))
-	    (and c (setq minor-mode-map-alist
-			 (cons c (delq c minor-mode-map-alist)))))
-	  (org-set-local (quote org-table-may-need-update) t)
-	  (org-add-hook 'before-change-functions 'org-before-change-function
-			nil 'local)
-	  (org-set-local 'org-old-auto-fill-inhibit-regexp
-			 auto-fill-inhibit-regexp)
-	  (org-set-local 'auto-fill-inhibit-regexp
-			 (if auto-fill-inhibit-regexp
-			     (concat orgtbl-line-start-regexp "\\|"
-				     auto-fill-inhibit-regexp)
-			   orgtbl-line-start-regexp))
-	  (org-add-to-invisibility-spec '(org-cwidth))
-	  (when (fboundp 'font-lock-add-keywords)
-	    (font-lock-add-keywords nil orgtbl-extra-font-lock-keywords)
-	    (org-restart-font-lock))
-	  (easy-menu-add orgtbl-mode-menu)
-	  (run-hooks 'orgtbl-mode-hook))
-      (setq auto-fill-inhibit-regexp org-old-auto-fill-inhibit-regexp)
-      (org-table-cleanup-narrow-column-properties)
-      (org-remove-from-invisibility-spec '(org-cwidth))
-      (remove-hook 'before-change-functions 'org-before-change-function t)
-      (when (fboundp 'font-lock-remove-keywords)
-	(font-lock-remove-keywords nil orgtbl-extra-font-lock-keywords)
-	(org-restart-font-lock))
-      (easy-menu-remove orgtbl-mode-menu)
-      (force-mode-line-update 'all))))
+  (cond
+   ((org-mode-p)
+    ;; Exit without error, in case some hook functions calls this
+    ;; by accident in org-mode.
+    (message "Orgtbl-mode is not useful in org-mode, command ignored"))
+   (orgtbl-mode
+    (and (orgtbl-setup) (defun orgtbl-setup () nil)) ;; FIXME: Yuck!?!
+    ;; Make sure we are first in minor-mode-map-alist
+    (let ((c (assq 'orgtbl-mode minor-mode-map-alist)))
+      ;; FIXME: maybe it should use emulation-mode-map-alists?
+      (and c (setq minor-mode-map-alist
+                   (cons c (delq c minor-mode-map-alist)))))
+    (org-set-local (quote org-table-may-need-update) t)
+    (org-add-hook 'before-change-functions 'org-before-change-function
+                  nil 'local)
+    (org-set-local 'org-old-auto-fill-inhibit-regexp
+                   auto-fill-inhibit-regexp)
+    (org-set-local 'auto-fill-inhibit-regexp
+                   (if auto-fill-inhibit-regexp
+                       (concat orgtbl-line-start-regexp "\\|"
+                               auto-fill-inhibit-regexp)
+                     orgtbl-line-start-regexp))
+    (org-add-to-invisibility-spec '(org-cwidth))
+    (when (fboundp 'font-lock-add-keywords)
+      (font-lock-add-keywords nil orgtbl-extra-font-lock-keywords)
+      (org-restart-font-lock))
+    (easy-menu-add orgtbl-mode-menu))
+   (t
+    (setq auto-fill-inhibit-regexp org-old-auto-fill-inhibit-regexp)
+    (org-table-cleanup-narrow-column-properties)
+    (org-remove-from-invisibility-spec '(org-cwidth))
+    (remove-hook 'before-change-functions 'org-before-change-function t)
+    (when (fboundp 'font-lock-remove-keywords)
+      (font-lock-remove-keywords nil orgtbl-extra-font-lock-keywords)
+      (org-restart-font-lock))
+    (easy-menu-remove orgtbl-mode-menu)
+    (force-mode-line-update 'all))))
 
 (defun org-table-cleanup-narrow-column-properties ()
   "Remove all properties related to narrow-column invisibility."
@@ -3483,11 +3480,6 @@ table editor in arbitrary modes.")
     (while (setq s (text-property-any s (point-max) 'invisible 'org-cwidth))
       (remove-text-properties s (1+ s) '(invisible t)))))
 
-;; Install it as a minor mode.
-(put 'orgtbl-mode :included t)
-(put 'orgtbl-mode :menu-tag "Org Table Mode")
-(add-minor-mode 'orgtbl-mode " OrgTbl" orgtbl-mode-map)
-
 (defun orgtbl-make-binding (fun n &rest keys)
   "Create a function for binding in the table minor mode.
 FUN is the command to call inside a table.  N is used to create a unique