Sync with 1.84.

6 files changed, 463 insertions, 234 deletions

diff --git a/lisp/cus-edit.el b/lisp/cus-edit.el
index 0327c7aa286..aee2ef02679 100644
--- a/lisp/cus-edit.el
+++ b/lisp/cus-edit.el
@@ -4,7 +4,7 @@
 ;;
 ;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
 ;; Keywords: help, faces
-;; Version: 1.71
+;; Version: 1.84
 ;; X-URL: http://www.dina.kvl.dk/~abraham/custom/
 
 ;;; Commentary:
@@ -22,6 +22,10 @@
   :custom-set :custom-save :custom-reset-current :custom-reset-saved 
   :custom-reset-factory)
 
+(put 'custom-define-hook 'custom-type 'hook)
+(put 'custom-define-hook 'factory-value '(nil))
+(custom-add-to-group 'customize 'custom-define-hook 'custom-variable)
+
 ;;; Customization Groups.
 
 (defgroup emacs nil
@@ -202,9 +206,90 @@
   :link '(url-link :tag "Development Page" 
                    "http://www.dina.kvl.dk/~abraham/custom/")
   :prefix "custom-"
-  :group 'help
+  :group 'help)
+
+(defgroup custom-faces nil
+  "Faces used by customize."
+  :group 'customize
   :group 'faces)
 
+(defgroup abbrev-mode nil
+  "Word abbreviations mode."
+  :group 'abbrev)
+
+(defgroup alloc nil
+  "Storage allocation and gc for GNU Emacs Lisp interpreter."
+  :tag "Storage Allocation"
+  :group 'internal)
+
+(defgroup undo nil
+  "Undoing changes in buffers."
+  :group 'editing)
+
+(defgroup modeline nil
+  "Content of the modeline."
+  :group 'environment)
+
+(defgroup fill nil
+  "Indenting and filling text."
+  :group 'editing)
+
+(defgroup editing-basics nil
+  "Most basic editing facilities."
+  :group 'editing)
+
+(defgroup display nil
+  "How characters are displayed in buffers."
+  :group 'environment)
+
+(defgroup execute nil
+  "Executing external commands."
+  :group 'processes)
+
+(defgroup installation nil
+  "The Emacs installation."
+  :group 'environment)
+
+(defgroup dired nil
+  "Directory editing."
+  :group 'environment)
+
+(defgroup limits nil
+  "Internal Emacs limits."
+  :group 'internal)
+
+(defgroup debug nil
+  "Debugging Emacs itself."
+  :group 'development)
+
+(defgroup minibuffer nil
+  "Controling the behaviour of the minibuffer."
+  :group 'environment)
+
+(defgroup keyboard nil
+  "Input from the keyboard."
+  :group 'environment)
+
+(defgroup mouse nil
+  "Input from the mouse."
+  :group 'environment)
+
+(defgroup menu nil
+  "Input from the menus."
+  :group 'environment)
+
+(defgroup auto-save nil
+  "Preventing accidential loss of data."
+  :group 'data)
+
+(defgroup processes-basics nil
+  "Basic stuff dealing with processes."
+  :group 'processes)
+
+(defgroup windows nil
+  "Windows within a frame."
+  :group 'processes)
+
 ;;; Utilities.
 
 (defun custom-quote (sexp)
@@ -236,6 +321,23 @@ IF REGEXP is not a string, return it unchanged."
         (nreverse (cons (substring regexp start) all)))
     regexp))
 
+(defun custom-variable-prompt ()
+  ;; Code stolen from `help.el'.
+  "Prompt for a variable, defaulting to the variable at point.
+Return a list suitable for use in `interactive'."
+   (let ((v (variable-at-point))
+         (enable-recursive-minibuffers t)
+         val)
+     (setq val (completing-read 
+                (if v
+                    (format "Customize variable (default %s): " v)
+                  "Customize variable: ")
+                obarray 'boundp t))
+     (list (if (equal val "")
+               v (intern val)))))
+
+;;; Unlispify.
+
 (defvar custom-prefix-list nil
   "List of prefixes that should be ignored by `custom-unlispify'")
 
@@ -258,6 +360,10 @@ IF REGEXP is not a string, return it unchanged."
            (erase-buffer)
            (princ symbol (current-buffer))
            (goto-char (point-min))
+           (when (and (eq (get symbol 'custom-type) 'boolean)
+                      (re-search-forward "-p\\'" nil t))
+             (replace-match "" t t)
+             (goto-char (point-min)))
            (let ((prefixes custom-prefix-list)
                  prefix)
              (while prefixes
@@ -290,62 +396,73 @@ IF REGEXP is not a string, return it unchanged."
             (concat (symbol-name symbol) "-"))
         prefixes))
 
-;;; The Custom Mode.
-
-(defvar custom-options nil
-  "Customization widgets in the current buffer.")
-
-(defvar custom-mode-map nil
-  "Keymap for `custom-mode'.")
-  
-(unless custom-mode-map
-  (setq custom-mode-map (make-sparse-keymap))
-  (set-keymap-parent custom-mode-map widget-keymap)
-  (define-key custom-mode-map "q" 'bury-buffer))
-
-(easy-menu-define custom-mode-menu 
-    custom-mode-map
-  "Menu used in customization buffers."
-    '("Custom"
-      ["Set" custom-set t]
-      ["Save" custom-save t]
-      ["Reset to Current" custom-reset-current t]
-      ["Reset to Saved" custom-reset-saved t]
-      ["Reset to Factory Settings" custom-reset-factory t]
-      ["Info" (Info-goto-node "(custom)The Customization Buffer") t]))
-
-(defcustom custom-mode-hook nil
-  "Hook called when entering custom-mode."
-  :type 'hook
+;;; Guess.
+
+(defcustom custom-guess-name-alist
+  '(("-p\\'" boolean)
+    ("-hook\\'" hook)
+    ("-face\\'" face)
+    ("-file\\'" file)
+    ("-function\\'" function)
+    ("-functions\\'" (repeat function))
+    ("-list\\'" (repeat sexp))
+    ("-alist\\'" (repeat (cons sexp sexp))))
+  "Alist of (MATCH TYPE).
+
+MATCH should be a regexp matching the name of a symbol, and TYPE should 
+be a widget suitable for editing the value of that symbol.  The TYPE
+of the first entry where MATCH matches the name of the symbol will be
+used. 
+
+This is used for guessing the type of variables not declared with
+customize."
+  :type '(repeat (group (regexp :tag "Match") (sexp :tag "Type")))
   :group 'customize)
 
-(defun custom-mode ()
-  "Major mode for editing customization buffers.
+(defcustom custom-guess-doc-alist
+  '(("\\`\\*?Non-nil " boolean))
+  "Alist of (MATCH TYPE).
 
-The following commands are available:
+MATCH should be a regexp matching a documentation string, and TYPE
+should be a widget suitable for editing the value of a variable with
+that documentation string.  The TYPE of the first entry where MATCH
+matches the name of the symbol will be used.
 
-\\[widget-forward]              Move to next button or editable field.
-\\[widget-backward]             Move to previous button or editable field.
-\\[widget-button-click]         Activate button under the mouse pointer.
-\\[widget-button-press]         Activate button under point.
-\\[custom-set]                  Set all modifications.
-\\[custom-save]         Make all modifications default.
-\\[custom-reset-current]        Reset all modified options. 
-\\[custom-reset-saved]          Reset all modified or set options.
-\\[custom-reset-factory]        Reset all options.
+This is used for guessing the type of variables not declared with
+customize."
+  :type '(repeat (group (regexp :tag "Match") (sexp :tag "Type")))
+  :group 'customize)
 
-Entry to this mode calls the value of `custom-mode-hook'
-if that value is non-nil."
-  (kill-all-local-variables)
-  (setq major-mode 'custom-mode
-        mode-name "Custom")
-  (use-local-map custom-mode-map)
-  (easy-menu-add custom-mode-menu)
-  (make-local-variable 'custom-options)
-  (run-hooks 'custom-mode-hook))
+(defun custom-guess-type (symbol)
+  "Guess a widget suitable for editing the value of SYMBOL.
+This is done by matching SYMBOL with `custom-guess-name-alist' and 
+if that fails, the doc string with `custom-guess-doc-alist'."
+  (let ((name (symbol-name symbol))
+        (names custom-guess-name-alist)
+        current found)
+    (while names
+      (setq current (car names)
+            names (cdr names))
+      (when (string-match (nth 0 current) name)
+        (setq found (nth 1 current)
+              names nil)))
+    (unless found
+      (let ((doc (documentation-property symbol 'variable-documentation))
+            (docs custom-guess-doc-alist))
+        (when doc 
+          (while docs
+            (setq current (car docs)
+                  docs (cdr docs))
+            (when (string-match (nth 0 current) doc)
+              (setq found (nth 1 current)
+                    docs nil))))))
+    found))
 
 ;;; Custom Mode Commands.
 
+(defvar custom-options nil
+  "Customization widgets in the current buffer.")
+
 (defun custom-set ()
   "Set changes in all modified options."
   (interactive)
@@ -430,21 +547,17 @@ when the action is chosen.")
 ;;;###autoload
 (defun customize-variable (symbol)
   "Customize SYMBOL, which must be a variable."
-  (interactive
-   ;; Code stolen from `help.el'.
-   (let ((v (variable-at-point))
-         (enable-recursive-minibuffers t)
-         val)
-     (setq val (completing-read 
-                (if v
-                    (format "Customize variable (default %s): " v)
-                  "Customize variable: ")
-                obarray 'boundp t))
-     (list (if (equal val "")
-               v (intern val)))))
+  (interactive (custom-variable-prompt))
   (custom-buffer-create (list (list symbol 'custom-variable))))
 
 ;;;###autoload
+(defun customize-variable-other-window (symbol)
+  "Customize SYMBOL, which must be a variable.
+Show the buffer in another window, but don't select it."
+  (interactive (custom-variable-prompt))
+  (custom-buffer-create-other-window (list (list symbol 'custom-variable))))
+
+;;;###autoload
 (defun customize-face (&optional symbol)
   "Customize SYMBOL, which should be a face name or nil.
 If SYMBOL is nil, customize all faces."
@@ -455,7 +568,10 @@ If SYMBOL is nil, customize all faces."
         (message "Looking for faces...")
         (mapcar (lambda (symbol)
                   (setq found (cons (list symbol 'custom-face) found)))
-                (face-list))
+                (nreverse (mapcar 'intern 
+                                  (sort (mapcar 'symbol-name (face-list))
+                                        'string<))))
+                        
         (custom-buffer-create found))
     (if (stringp symbol)
         (setq symbol (intern symbol)))
@@ -464,6 +580,19 @@ If SYMBOL is nil, customize all faces."
     (custom-buffer-create (list (list symbol 'custom-face)))))
 
 ;;;###autoload
+(defun customize-face-other-window (&optional symbol)
+  "Show customization buffer for FACE in other window."
+  (interactive (list (completing-read "Customize face: " 
+                                      obarray 'custom-facep)))
+  (if (or (null symbol) (and (stringp symbol) (zerop (length symbol))))
+      ()
+    (if (stringp symbol)
+        (setq symbol (intern symbol)))
+    (unless (symbolp symbol)
+      (error "Should be a symbol %S" symbol))
+    (custom-buffer-create-other-window (list (list symbol 'custom-face)))))
+
+;;;###autoload
 (defun customize-customized ()
   "Customize all already customized user options."
   (interactive)
@@ -511,9 +640,24 @@ user-settable."
 OPTIONS should be an alist of the form ((SYMBOL WIDGET)...), where
 SYMBOL is a customization option, and WIDGET is a widget for editing
 that option."
-  (message "Creating customization buffer...")
   (kill-buffer (get-buffer-create "*Customization*"))
   (switch-to-buffer (get-buffer-create "*Customization*"))
+  (custom-buffer-create-internal options))
+
+(defun custom-buffer-create-other-window (options)
+  "Create a buffer containing OPTIONS.
+OPTIONS should be an alist of the form ((SYMBOL WIDGET)...), where
+SYMBOL is a customization option, and WIDGET is a widget for editing
+that option."
+  (kill-buffer (get-buffer-create "*Customization*"))
+  (let ((window (selected-window)))
+    (switch-to-buffer-other-window (get-buffer-create "*Customization*"))
+    (custom-buffer-create-internal options)
+    (select-window window)))
+  
+
+(defun custom-buffer-create-internal (options)
+  (message "Creating customization buffer...")
   (custom-mode)
   (widget-insert "This is a customization buffer.
 Push RET or click mouse-2 on the word ")
@@ -753,7 +897,8 @@ The list should be sorted most significant first."
                                      (string :tag "Magic")
                                      face
                                      (string :tag "Description"))))
-  :group 'customize)
+  :group 'customize
+  :group 'custom-faces)
 
 (defcustom custom-magic-show 'long
   "Show long description of the state of each customization option."
@@ -956,22 +1101,27 @@ Change the state of this item."
           (t
            (funcall show widget value)))))
 
+(defvar custom-load-recursion nil
+  "Hack to avoid recursive dependencies.")
+
 (defun custom-load-symbol (symbol)
   "Load all dependencies for SYMBOL."
-  (let ((loads (get symbol 'custom-loads))
-        load)
-    (while loads
-      (setq load (car loads)
-            loads (cdr loads))
-      (cond ((symbolp load)
-             (condition-case nil
-                 (require load)
-               (error nil)))
-            ((assoc load load-history))
-            (t
-             (condition-case nil
-                 (load-library load)
-               (error nil)))))))
+  (unless custom-load-recursion
+    (let ((custom-load-recursion t) 
+          (loads (get symbol 'custom-loads))
+          load)
+      (while loads
+        (setq load (car loads)
+              loads (cdr loads))
+        (cond ((symbolp load)
+               (condition-case nil
+                   (require load)
+                 (error nil)))
+              ((assoc load load-history))
+              (t
+               (condition-case nil
+                   (load-library load)
+                 (error nil))))))))
 
 (defun custom-load-widget (widget)
   "Load all dependencies for WIDGET."
@@ -981,11 +1131,11 @@ Change the state of this item."
 
 (defface custom-variable-sample-face '((t (:underline t)))
   "Face used for unpushable variable tags."
-  :group 'customize)
+  :group 'custom-faces)
 
 (defface custom-variable-button-face '((t (:underline t :bold t)))
   "Face used for pushable variable tags."
-  :group 'customize)
+  :group 'custom-faces)
 
 (define-widget 'custom-variable 'custom
   "Customize variable."
@@ -1003,6 +1153,22 @@ Change the state of this item."
   :custom-reset-saved 'custom-variable-reset-saved
   :custom-reset-factory 'custom-variable-reset-factory)
 
+(defun custom-variable-type (symbol)
+  "Return a widget suitable for editing the value of SYMBOL.
+If SYMBOL has a `custom-type' property, use that.  
+Otherwise, look up symbol in `custom-guess-type-alist'."
+  (let* ((type (or (get symbol 'custom-type)
+                   (and (not (get symbol 'factory-value))
+                        (custom-guess-type symbol))
+                   'sexp))
+         (options (get symbol 'custom-options))
+         (tmp (if (listp type)
+                  (copy-list type)
+                (list type))))
+    (when options
+      (widget-put tmp :options options))
+    tmp))
+
 (defun custom-variable-value-create (widget)
   "Here is where you edit the variables value."
   (custom-load-widget widget)
@@ -1011,15 +1177,8 @@ Change the state of this item."
          (form (widget-get widget :custom-form))
          (state (widget-get widget :custom-state))
          (symbol (widget-get widget :value))
-         (options (get symbol 'custom-options))
-         (child-type (or (get symbol 'custom-type) 'sexp))
          (tag (widget-get widget :tag))
-         (type (let ((tmp (if (listp child-type)
-                              (copy-list child-type)
-                            (list child-type))))
-                 (when options
-                   (widget-put tmp :options options))
-                 tmp))
+         (type (custom-variable-type symbol))
          (conv (widget-convert type))
          (value (if (default-boundp symbol)
                     (default-value symbol)
@@ -1162,10 +1321,10 @@ Optional EVENT is the location for the menu."
            (goto-char (widget-get val :from))
            (error "%s" (widget-get val :error)))
           ((eq form 'lisp)
-           (set symbol (eval (setq val (widget-value child))))
+           (set-default symbol (eval (setq val (widget-value child))))
            (put symbol 'customized-value (list val)))
           (t
-           (set symbol (setq val (widget-value child)))
+           (set-default symbol (setq val (widget-value child)))
            (put symbol 'customized-value (list (custom-quote val)))))
     (custom-variable-state-set widget)
     (custom-redraw-magic widget)))
@@ -1184,12 +1343,12 @@ Optional EVENT is the location for the menu."
            (error "%s" (widget-get val :error)))
           ((eq form 'lisp)
            (put symbol 'saved-value (list (widget-value child)))
-           (set symbol (eval (widget-value child))))
+           (set-default symbol (eval (widget-value child))))
           (t
            (put symbol
                 'saved-value (list (custom-quote (widget-value
                                                   child))))
-           (set symbol (widget-value child))))
+           (set-default symbol (widget-value child))))
     (put symbol 'customized-value nil)
     (custom-save-all)
     (custom-variable-state-set widget)
@@ -1200,7 +1359,7 @@ Optional EVENT is the location for the menu."
   (let ((symbol (widget-value widget)))
     (if (get symbol 'saved-value)
         (condition-case nil
-            (set symbol (eval (car (get symbol 'saved-value))))
+            (set-default symbol (eval (car (get symbol 'saved-value))))
           (error nil))
       (error "No saved value for %s" symbol))
     (put symbol 'customized-value nil)
@@ -1211,7 +1370,7 @@ Optional EVENT is the location for the menu."
   "Restore the factory setting for the variable being edited by WIDGET."
   (let ((symbol (widget-value widget)))
     (if (get symbol 'factory-value)
-        (set symbol (eval (car (get symbol 'factory-value))))
+        (set-default symbol (eval (car (get symbol 'factory-value))))
       (error "No factory default for %S" symbol))
     (put symbol 'customized-value nil)
     (when (get symbol 'saved-value)
@@ -1311,7 +1470,7 @@ Match frames with dark backgrounds.")
 
 (defface custom-face-tag-face '((t (:underline t)))
   "Face used for face tags."
-  :group 'customize)
+  :group 'custom-faces)
 
 (define-widget 'custom-face 'custom
   "Customize face."
@@ -1613,7 +1772,7 @@ The first member is used for level 1 groups, the second for level 2,
 and so forth.  The remaining group tags are shown with
 `custom-group-tag-face'."
   :type '(repeat face)
-  :group 'customize)
+  :group 'custom-faces)
 
 (defface custom-group-tag-face-1 '((((class color)
                                      (background dark))
@@ -1632,7 +1791,7 @@ and so forth.  The remaining group tags are shown with
                                   (:foreground "blue" :underline t))
                                  (t (:underline t)))
   "Face used for low level group tags."
-  :group 'customize)
+  :group 'custom-faces)
 
 (define-widget 'custom-group 'custom
   "Customize group."
@@ -1835,9 +1994,21 @@ Leave point at the location of the call, or after the last expression."
       (unless (bolp)
         (princ "\n"))
       (princ "(custom-set-faces")
+      (let ((value (get 'default 'saved-face)))
+        ;; The default face must be first, since it affects the others.
+        (when value
+          (princ "\n '(default ")
+          (prin1 value)
+          (if (or (get 'default 'factory-face)
+                  (and (not (custom-facep 'default))
+                       (not (get 'default 'force-face))))
+              (princ ")")
+            (princ " t)"))))
       (mapatoms (lambda (symbol)
                   (let ((value (get symbol 'saved-face)))
-                    (when value
+                    (when (and (not (eq symbol 'default))
+                               ;; Don't print default face here.
+                               value)
                       (princ "\n '(")
                       (princ symbol)
                       (princ " ")
@@ -1862,10 +2033,43 @@ Leave point at the location of the call, or after the last expression."
 
 ;;; The Customize Menu.
 
-(defcustom custom-menu-nesting 2
-  "Maximum nesting in custom menus."
-  :type 'integer
-  :group 'customize)
+;;; Menu support
+
+(unless (string-match "XEmacs" emacs-version)
+  (defconst custom-help-menu '("Customize"
+                               ["Update menu..." custom-menu-update t]
+                               ["Group..." customize t]
+                               ["Variable..." customize-variable t]
+                               ["Face..." customize-face t]
+                               ["Saved..." customize-customized t]
+                               ["Apropos..." customize-apropos t])
+    ;; This menu should be identical to the one defined in `menu-bar.el'. 
+    "Customize menu")
+
+  (defun custom-menu-reset ()
+    "Reset customize menu."
+    (remove-hook 'custom-define-hook 'custom-menu-reset)
+    (define-key global-map [menu-bar help-menu customize-menu]
+      (cons (car custom-help-menu)
+            (easy-menu-create-keymaps (car custom-help-menu)
+                                      (cdr custom-help-menu)))))
+
+  (defun custom-menu-update (event)
+    "Update customize menu."
+    (interactive "e")
+    (add-hook 'custom-define-hook 'custom-menu-reset)
+    (let* ((emacs (widget-apply '(custom-group) :custom-menu 'emacs))
+           (menu `(,(car custom-help-menu)
+                   ,emacs
+                   ,@(cdr (cdr custom-help-menu)))))
+      (let ((map (easy-menu-create-keymaps (car menu) (cdr menu))))
+        (define-key global-map [menu-bar help-menu customize-menu]
+          (cons (car menu) map)))))
+
+  (defcustom custom-menu-nesting 2
+    "Maximum nesting in custom menus."
+    :type 'integer
+    :group 'customize))
 
 (defun custom-face-menu-create (widget symbol)
   "Ignoring WIDGET, create a menu entry for customization face SYMBOL."
@@ -1884,6 +2088,7 @@ Leave point at the location of the call, or after the last expression."
               `(custom-buffer-create '((,symbol custom-variable)))
               t))))
 
+;; Add checkboxes to boolean variable entries.
 (widget-put (get 'boolean 'widget-type)
             :custom-menu (lambda (widget symbol)
                            (vector (custom-unlispify-menu-entry symbol)
@@ -1906,17 +2111,15 @@ Leave point at the location of the call, or after the last expression."
     (let ((custom-menu-nesting (1- custom-menu-nesting)))
       (custom-menu-create symbol))))
 
-(defun custom-menu-create (symbol &optional name)
+;;;###autoload
+(defun custom-menu-create (symbol)
   "Create menu for customization group SYMBOL.
-If optional NAME is given, use that as the name of the menu. 
-Otherwise make up a name from SYMBOL.
 The menu is in a format applicable to `easy-menu-define'."
-  (unless name
-    (setq name (custom-unlispify-menu-entry symbol)))
-  (let ((item (vector name
-                      `(custom-buffer-create '((,symbol custom-group)))
-                      t)))
-    (if (and (>= custom-menu-nesting 0)
+  (let* ((item (vector (custom-unlispify-menu-entry symbol)
+                       `(custom-buffer-create '((,symbol custom-group)))
+                       t)))
+    (if (and (or (not (boundp 'custom-menu-nesting))
+                 (>= custom-menu-nesting 0))
              (< (length (get symbol 'custom-group)) widget-menu-max-size))
         (let ((custom-prefix-list (custom-prefix-add symbol
                                                      custom-prefix-list)))
@@ -1933,58 +2136,77 @@ The menu is in a format applicable to `easy-menu-define'."
       item)))
 
 ;;;###autoload
-(defun custom-menu-update (event)
-  "Update customize menu."
-  (interactive "e")
-  (add-hook 'custom-define-hook 'custom-menu-reset)
-  (let* ((emacs (widget-apply '(custom-group) :custom-menu 'emacs))
-         (menu `(,(car custom-help-menu)
-                 ,emacs
-                 ,@(cdr (cdr custom-help-menu)))))
-    (let ((map (easy-menu-create-keymaps (car menu) (cdr menu))))
-      (define-key global-map [menu-bar help-menu customize-menu]
-        (cons (car menu) map)))))
-
-;;; Dependencies.
+(defun customize-menu-create (symbol &optional name)
+  "Return a customize menu for customization group SYMBOL.
+If optional NAME is given, use that as the name of the menu. 
+Otherwise the menu will be named `Customize'.
+The format is suitable for use with `easy-menu-define'."
+  (unless name
+    (setq name "Customize"))
+  (if (string-match "XEmacs" emacs-version)
+      ;; We can delay it under XEmacs.
+      `(,name
+        :filter (lambda (&rest junk)
+                  (cdr (custom-menu-create ',symbol))))
+    ;; But we must create it now under Emacs.
+    (cons name (cdr (custom-menu-create symbol)))))
 
-;;;###autoload
-(defun custom-make-dependencies ()
-  "Batch function to extract custom dependencies from .el files.
-Usage: emacs -batch *.el -f custom-make-dependencies > deps.el"
-  (let ((buffers (buffer-list)))
-    (while buffers
-      (set-buffer (car buffers))
-      (setq buffers (cdr buffers))
-      (let ((file (buffer-file-name)))
-        (when (and file (string-match "\\`\\(.*\\)\\.el\\'" file))
-          (goto-char (point-min))
-          (condition-case nil
-              (let ((name (file-name-nondirectory (match-string 1 file))))
-                (while t
-                  (let ((expr (read (current-buffer))))
-                    (when (and (listp expr)
-                               (memq (car expr) '(defcustom defface defgroup)))
-                      (eval expr)
-                      (put (nth 1 expr) 'custom-where name)))))
-            (error nil))))))
-  (mapatoms (lambda (symbol)
-              (let ((members (get symbol 'custom-group))
-                    item where found)
-                (when members
-                  (princ "(put '")
-                  (princ symbol)
-                  (princ " 'custom-loads '(")
-                  (while members
-                    (setq item (car (car members))
-                          members (cdr members)
-                          where (get item 'custom-where))
-                    (unless (or (null where)
-                                (member where found))
-                      (when found
-                        (princ " "))
-                      (prin1 where)
-                      (push where found)))
-                  (princ "))\n"))))))
+;;; The Custom Mode.
+
+(defvar custom-mode-map nil
+  "Keymap for `custom-mode'.")
+  
+(unless custom-mode-map
+  (setq custom-mode-map (make-sparse-keymap))
+  (set-keymap-parent custom-mode-map widget-keymap)
+  (define-key custom-mode-map "q" 'bury-buffer))
+
+(easy-menu-define custom-mode-customize-menu 
+    custom-mode-map
+  "Menu used in customization buffers."
+  (customize-menu-create 'customize))
+
+(easy-menu-define custom-mode-menu 
+    custom-mode-map
+  "Menu used in customization buffers."
+  `("Custom"
+    ["Set" custom-set t]
+    ["Save" custom-save t]
+    ["Reset to Current" custom-reset-current t]
+    ["Reset to Saved" custom-reset-saved t]
+    ["Reset to Factory Settings" custom-reset-factory t]
+    ["Info" (Info-goto-node "(custom)The Customization Buffer") t]))
+
+(defcustom custom-mode-hook nil
+  "Hook called when entering custom-mode."
+  :type 'hook
+  :group 'customize)
+
+(defun custom-mode ()
+  "Major mode for editing customization buffers.
+
+The following commands are available:
+
+Move to next button or editable field.     \\[widget-forward]
+Move to previous button or editable field. \\[widget-backward]
+Activate button under the mouse pointer.   \\[widget-button-click]
+Activate button under point.               \\[widget-button-press]
+Set all modifications.                     \\[custom-set]
+Make all modifications default.            \\[custom-save]
+Reset all modified options.                \\[custom-reset-current]
+Reset all modified or set options.         \\[custom-reset-saved]
+Reset all options.                         \\[custom-reset-factory]
+
+Entry to this mode calls the value of `custom-mode-hook'
+if that value is non-nil."
+  (kill-all-local-variables)
+  (setq major-mode 'custom-mode
+        mode-name "Custom")
+  (use-local-map custom-mode-map)
+  (easy-menu-add custom-mode-customize-menu)
+  (easy-menu-add custom-mode-menu)
+  (make-local-variable 'custom-options)
+  (run-hooks 'custom-mode-hook))
 
 ;;; The End.
 
diff --git a/lisp/cus-face.el b/lisp/cus-face.el
index c0d64a8ecfb..952171ca4d0 100644
--- a/lisp/cus-face.el
+++ b/lisp/cus-face.el
@@ -4,7 +4,7 @@
 ;;
 ;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
 ;; Keywords: help, faces
-;; Version: 1.71
+;; Version: 1.84
 ;; X-URL: http://www.dina.kvl.dk/~abraham/custom/
 
 ;;; Commentary:
@@ -39,7 +39,7 @@
 
 (eval-and-compile
   (unless (fboundp 'frame-property)
-    ;; XEmacs function missing in Emacs 19.34.
+    ;; XEmacs function missing in Emacs.
     (defun frame-property (frame property &optional default)
       "Return FRAME's value for property PROPERTY."
       (or (cdr (assq property (frame-parameters frame)))
@@ -49,44 +49,13 @@
     ;; XEmacs function missing in Emacs.
     (defun face-doc-string (face)
       "Get the documentation string for FACE."
-      (get face 'face-doc-string)))
+      (get face 'face-documentation)))
 
   (unless (fboundp 'set-face-doc-string)
     ;; XEmacs function missing in Emacs.
     (defun set-face-doc-string (face string)
       "Set the documentation string for FACE to STRING."
-      (put face 'face-doc-string string)))
-
-  (when (and (not (fboundp 'set-face-stipple))
-             (fboundp 'set-face-background-pixmap))
-    ;; Emacs function missing in XEmacs 19.15.
-    (defun set-face-stipple (face pixmap &optional frame)
-      ;; Written by Kyle Jones.
-      "Change the stipple pixmap of face FACE to PIXMAP.
-PIXMAP should be a string, the name of a file of pixmap data.
-The directories listed in the `x-bitmap-file-path' variable are searched.
-
-Alternatively, PIXMAP may be a list of the form (WIDTH HEIGHT DATA)
-where WIDTH and HEIGHT are the size in pixels,
-and DATA is a string, containing the raw bits of the bitmap.  
-
-If the optional FRAME argument is provided, change only
-in that frame; otherwise change each frame."
-      (while (not (find-face face))
-        (setq face (signal 'wrong-type-argument (list 'facep face))))
-      (while (cond ((stringp pixmap)
-                    (unless (file-readable-p pixmap)
-                      (setq pixmap (vector 'xbm ':file pixmap)))
-                    nil)
-                   ((and (consp pixmap) (= (length pixmap) 3))
-                    (setq pixmap (vector 'xbm ':data pixmap))
-                    nil)
-                   (t t))
-        (setq pixmap (signal 'wrong-type-argument
-                             (list 'stipple-pixmap-p pixmap))))
-      (while (and frame (not (framep frame)))
-        (setq frame (signal 'wrong-type-argument (list 'framep frame))))
-      (set-face-background-pixmap face pixmap frame))))
+      (put face 'face-documentation string))))
 
 (unless (fboundp 'x-color-values)
   ;; Emacs function missing in XEmacs 19.14.
@@ -410,7 +379,7 @@ If FRAME is nil, use the default face."
     "Return the size of the font of FACE as a string."
     (let* ((font (apply 'custom-face-font-name face args))
            (fontobj (font-create-object font)))
-      (format "%d" (font-size fontobj))))
+      (format "%s" (font-size fontobj))))
 
   (defun custom-set-face-font-family (face family &rest args)
     "Set the font of FACE to FAMILY."
@@ -425,17 +394,23 @@ If FRAME is nil, use the default face."
            (fontobj (font-create-object font)))
       (font-family fontobj)))
 
-  (nconc custom-face-attributes
-         '((:family (editable-field :format "Font Family: %v"
-                                    :help-echo "\
+  (setq custom-face-attributes
+        (append '((:family (editable-field :format "Font Family: %v"
+                                          :help-echo "\
 Name of font family to use (e.g. times).") 
-                    custom-set-face-font-family
-                    custom-face-font-family)
-           (:size (editable-field :format "Size: %v"
-                                  :help-echo "\
+                          custom-set-face-font-family
+                          custom-face-font-family)
+                  (:size (editable-field :format "Size: %v"
+                                         :help-echo "\
 Text size (e.g. 9pt or 2mm).")
-                  custom-set-face-font-size
-                  custom-face-font-size))))
+                         custom-set-face-font-size
+                         custom-face-font-size)
+                  (:strikethru (toggle :format "Strikethru: %[%v%]\n"
+                                      :help-echo "\
+Control whether the text should be strikethru.")
+                               set-face-strikethru-p
+                               face-strikethru-p))
+                custom-face-attributes)))
 
 ;;; Frames.
 
diff --git a/lisp/custom.el b/lisp/custom.el
index 57026fc8f4a..4e4cde95d9e 100644
--- a/lisp/custom.el
+++ b/lisp/custom.el
@@ -4,7 +4,7 @@
 ;;
 ;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
 ;; Keywords: help, faces
-;; Version: 1.71
+;; Version: 1.84
 ;; X-URL: http://www.dina.kvl.dk/~abraham/custom/
 
 ;;; Commentary:
@@ -23,16 +23,26 @@
 
 (define-widget-keywords :prefix :tag :load :link :options :type :group)
 
+(defvar custom-define-hook nil
+  ;; Customize information for this option is in `cus-edit.el'.
+  "Hook called after defining each customize option.")
+
 ;;; The `defcustom' Macro.
 
 (defun custom-declare-variable (symbol value doc &rest args)
   "Like `defcustom', but SYMBOL and VALUE are evaluated as normal arguments."
-  (unless (and (default-boundp symbol)
-               (not (get symbol 'saved-value)))
+  ;; Bind this variable unless it already is bound.
+  (unless (default-boundp symbol)
+    ;; Use the saved value if it exists, otherwise the factory setting.
     (set-default symbol (if (get symbol 'saved-value)
                             (eval (car (get symbol 'saved-value)))
                           (eval value))))
+  ;; Remember the factory setting.
   (put symbol 'factory-value (list value))
+  ;; Maybe this option was rogue in an earlier version.  It no longer is.
+  (when (get symbol 'force-value)
+    ;; It no longer is.    
+    (put symbol 'force-value nil))
   (when doc
     (put symbol 'variable-documentation doc))
   (while args 
@@ -262,23 +272,23 @@ the default value for the SYMBOL."
                 (value (nth 1 entry))
                 (now (nth 2 entry)))
             (put symbol 'saved-value (list value))
-            (when now 
-              (put symbol 'force-value t)
-              (set-default symbol (eval value)))
+            (cond (now 
+                   ;; Rogue variable, set it now.
+                   (put symbol 'force-value t)
+                   (set-default symbol (eval value)))
+                  ((default-boundp symbol)
+                   ;; Something already set this, overwrite it.
+                   (set-default symbol (eval value))))
             (setq args (cdr args)))
         ;; Old format, a plist of SYMBOL VALUE pairs.
+        (message "Warning: old format `custom-set-variables'")
+        (ding)
+        (sit-for 2)
         (let ((symbol (nth 0 args))
               (value (nth 1 args)))
           (put symbol 'saved-value (list value)))
         (setq args (cdr (cdr args)))))))
 
-;;; Meta Customization
-
-(defcustom custom-define-hook nil
-  "Hook called after defining each customize option."
-  :group 'customize
-  :type 'hook)
-
 ;;; The End.
 
 (provide 'custom)
diff --git a/lisp/wid-browse.el b/lisp/wid-browse.el
index d90836c05c4..f656a3b9020 100644
--- a/lisp/wid-browse.el
+++ b/lisp/wid-browse.el
@@ -4,7 +4,7 @@
 ;;
 ;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
 ;; Keywords: extensions
-;; Version: 1.71
+;; Version: 1.84
 ;; X-URL: http://www.dina.kvl.dk/~abraham/custom/
 
 ;;; Commentary:
@@ -29,7 +29,13 @@
   
 (unless widget-browse-mode-map
   (setq widget-browse-mode-map (make-sparse-keymap))
-  (set-keymap-parent widget-browse-mode-map widget-keymap))
+  (set-keymap-parent widget-browse-mode-map widget-keymap)
+  (define-key widget-browse-mode-map "q" 'bury-buffer))
+
+(easy-menu-define widget-browse-mode-customize-menu 
+    widget-browse-mode-map
+  "Menu used in widget browser buffers."
+  (customize-menu-create 'widgets))
 
 (easy-menu-define widget-browse-mode-menu 
     widget-browse-mode-map
@@ -59,6 +65,7 @@ if that value is non-nil."
   (setq major-mode 'widget-browse-mode
         mode-name "Widget")
   (use-local-map widget-browse-mode-map)
+  (easy-menu-add widget-browse-mode-customize-menu)
   (easy-menu-add widget-browse-mode-menu)
   (run-hooks 'widget-browse-mode-hook))
 
@@ -82,6 +89,7 @@ if that value is non-nil."
 
 (defvar widget-browse-history nil)
 
+;;;###autoload
 (defun widget-browse (widget)
   "Create a widget browser for WIDGET."
   (interactive (list (completing-read "Widget: " 
@@ -106,11 +114,11 @@ if that value is non-nil."
   (widget-browse-mode)
   
   ;; Quick way to get out.
-  (widget-create 'push-button
-                 :action (lambda (widget &optional event)
-                           (bury-buffer))
-                 "Quit")
-  (widget-insert "\n")
+;;  (widget-create 'push-button
+;;               :action (lambda (widget &optional event)
+;;                         (bury-buffer))
+;;               "Quit")
+;;  (widget-insert "\n")
 
   ;; Top text indicating whether it is a class or object browser.
   (if (listp widget)
@@ -145,6 +153,18 @@ if that value is non-nil."
   (widget-setup)
   (goto-char (point-min)))
 
+;;;###autoload
+(defun widget-browse-other-window (&optional widget)
+  "Show widget browser for WIDGET in other window."
+  (interactive)
+  (let ((window (selected-window)))
+    (switch-to-buffer-other-window "*Browse Widget*")
+    (if widget
+        (widget-browse widget)
+      (call-interactively 'widget-browse))
+    (select-window window)))
+
+
 ;;; The `widget-browse' Widget.
 
 (define-widget 'widget-browse 'push-button
diff --git a/lisp/wid-edit.el b/lisp/wid-edit.el
index 283981d42f4..e7985c5bc8f 100644
--- a/lisp/wid-edit.el
+++ b/lisp/wid-edit.el
@@ -4,7 +4,7 @@
 ;;
 ;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
 ;; Keywords: extensions
-;; Version: 1.71
+;; Version: 1.84
 ;; X-URL: http://www.dina.kvl.dk/~abraham/custom/
 
 ;;; Commentary:
@@ -1238,13 +1238,14 @@ With optional ARG, move across that many fields."
 (define-widget 'push-button 'item
   "A pushable button."
   :value-create 'widget-push-button-value-create
+  :text-format "[%s]"
   :format "%[%v%]")
 
 (defun widget-push-button-value-create (widget)
   ;; Insert text representing the `on' and `off' states.
   (let* ((tag (or (widget-get widget :tag)
                   (widget-get widget :value)))
-         (text (concat "[" tag "]"))
+         (text (format (widget-get widget :text-format) tag))
          (gui (cdr (assoc tag widget-push-button-cache))))
     (if (and (fboundp 'make-gui-button)
              (fboundp 'make-glyph)
@@ -2374,7 +2375,7 @@ It will read a directory name from the minibuffer when activated."
 (defun widget-vector-match (widget value) 
   (and (vectorp value)
        (widget-group-match widget
-                           (widget-apply :value-to-internal widget value))))
+                           (widget-apply widget :value-to-internal value))))
 
 (define-widget 'cons 'group
   "A cons-cell."
diff --git a/lisp/widget.el b/lisp/widget.el
index 4e1f2ca804c..7acd239578b 100644
--- a/lisp/widget.el
+++ b/lisp/widget.el
@@ -4,7 +4,7 @@
 ;;
 ;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
 ;; Keywords: help, extensions, faces, hypermedia
-;; Version: 1.71
+;; Version: 1.84
 ;; X-URL: http://www.dina.kvl.dk/~abraham/custom/
 
 ;;; Commentary:
@@ -27,8 +27,8 @@
              (set (car keywords) (car keywords)))
          (setq keywords (cdr keywords)))))))
 
-(define-widget-keywords :deactivate :active :inactive :activate
-  :sibling-args :delete-button-args
+(define-widget-keywords :text-format :deactivate :active :inactive 
+  :activate :sibling-args :delete-button-args
   :insert-button-args :append-button-args :button-args 
   :tag-glyph :off-glyph :on-glyph :valid-regexp
   :secret :sample-face :sample-face-get :case-fold :widget-doc 
@@ -50,6 +50,7 @@
   (autoload 'widget-create "wid-edit")
   (autoload 'widget-insert "wid-edit")
   (autoload 'widget-browse "wid-browse" nil t)
+  (autoload 'widget-browse-other-window "wid-browse" nil t)
   (autoload 'widget-browse-at "wid-browse" nil t))
 
 (defun define-widget (name class doc &rest args)