Synched with custom 1.90.

1 files changed, 312 insertions, 86 deletions

diff --git a/lisp/cus-edit.el b/lisp/cus-edit.el
index 43a8ca53ade..eafbcec48c9 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: 1.84
+;; Version: 1.90
 ;; X-URL: http://www.dina.kvl.dk/~abraham/custom/
 
 ;; This file is part of GNU Emacs.
@@ -26,6 +26,8 @@
 
 ;;; Commentary:
 ;;
+;; This file implements the code to create and edit customize buffers.
+;; 
 ;; See `custom.el'.
 
 ;;; Code:
@@ -33,6 +35,11 @@
 (require 'cus-face)
 (require 'wid-edit)
 (require 'easymenu)
+(eval-when-compile (require 'cl))
+
+(condition-case nil
+    (require 'cus-load)
+  (error nil))
 
 (defun custom-face-display-set (face spec &optional frame)
   (face-spec-set face spec frame))
@@ -355,10 +362,30 @@ Return a list suitable for use in `interactive'."
                 (if v
                     (format "Customize variable (default %s): " v)
                   "Customize variable: ")
-                obarray 'boundp t))
+                obarray (lambda (symbol)
+                          (and (boundp symbol)
+                               (or (get symbol 'custom-type)
+                                   (user-variable-p symbol))))))
      (list (if (equal val "")
                v (intern val)))))
 
+(defun custom-menu-filter (menu widget)
+  "Convert MENU to the form used by `widget-choose'.
+MENU should be in the same format as `custom-variable-menu'.
+WIDGET is the widget to apply the filter entries of MENU on."
+  (let ((result nil)
+        current name action filter)
+    (while menu 
+      (setq current (car menu)
+            name (nth 0 current)
+            action (nth 1 current)
+            filter (nth 2 current)
+            menu (cdr menu))
+      (if (or (null filter) (funcall filter widget))
+          (push (cons name action) result)
+        (push name result)))
+    (nreverse result)))
+
 ;;; Unlispify.
 
 (defvar custom-prefix-list nil
@@ -552,6 +579,74 @@ when the action is chosen.")
 
 ;;; The Customize Commands
 
+(defun custom-prompt-variable (prompt-var prompt-val)
+  "Prompt for a variable and a value and return them as a list.
+PROMPT-VAR is the prompt for the variable, and PROMPT-VAL is the
+prompt for the value.  The %s escape in PROMPT-VAL is replaced with
+the name of the variable.
+
+If the variable has a `variable-interactive' property, that is used as if
+it were the arg to `interactive' (which see) to interactively read the value.
+
+If the variable has a `custom-type' property, it must be a widget and the
+`:prompt-value' property of that widget will be used for reading the value."
+  (let* ((var (read-variable prompt-var))
+         (minibuffer-help-form '(describe-variable var)))
+    (list var
+          (let ((prop (get var 'variable-interactive))
+                (type (get var 'custom-type))
+                (prompt (format prompt-val var)))
+            (unless (listp type)
+              (setq type (list type)))
+            (cond (prop
+                   ;; Use VAR's `variable-interactive' property
+                   ;; as an interactive spec for prompting.
+                   (call-interactively (list 'lambda '(arg)
+                                             (list 'interactive prop)
+                                             'arg)))
+                  (type
+                   (widget-prompt-value type
+                                        prompt
+                                        (if (boundp var)
+                                            (symbol-value var))
+                                        (not (boundp var))))
+                  (t
+                   (eval-minibuffer prompt)))))))
+
+;;;###autoload
+(defun custom-set-value (var val)
+  "Set VARIABLE to VALUE.  VALUE is a Lisp object.
+
+If VARIABLE has a `variable-interactive' property, that is used as if
+it were the arg to `interactive' (which see) to interactively read the value.
+
+If VARIABLE has a `custom-type' property, it must be a widget and the
+`:prompt-value' property of that widget will be used for reading the value." 
+  (interactive (custom-prompt-variable "Set variable: "
+                                       "Set %s to value: "))
+   
+  (set var val))
+
+;;;###autoload
+(defun custom-set-variable (var val)
+  "Set the default for VARIABLE to VALUE.  VALUE is a Lisp object.
+
+If VARIABLE has a `custom-set' property, that is used for setting
+VARIABLE, otherwise `set-default' is used.
+
+The `customized-value' property of the VARIABLE will be set to a list
+with a quoted VALUE as its sole list member.
+
+If VARIABLE has a `variable-interactive' property, that is used as if
+it were the arg to `interactive' (which see) to interactively read the value.
+
+If VARIABLE has a `custom-type' property, it must be a widget and the
+`:prompt-value' property of that widget will be used for reading the value. " 
+  (interactive (custom-prompt-variable "Set variable: "
+                                       "Set customized value for %s to: "))
+  (funcall (or (get var 'custom-set) 'set-default) var val)
+  (put var 'customized-value (list (custom-quote val))))
+
 ;;;###autoload
 (defun customize (symbol)
   "Customize SYMBOL, which must be a customization group."
@@ -568,6 +663,21 @@ when the action is chosen.")
   (custom-buffer-create (list (list symbol 'custom-group))))
 
 ;;;###autoload
+(defun customize-other-window (symbol)
+  "Customize SYMBOL, which must be a customization group."
+  (interactive (list (completing-read "Customize group: (default emacs) "
+                                      obarray 
+                                      (lambda (symbol)
+                                        (get symbol 'custom-group))
+                                      t)))
+
+  (when (stringp symbol)
+    (if (string-equal "" symbol)
+        (setq symbol 'emacs)
+      (setq symbol (intern symbol))))
+  (custom-buffer-create-other-window (list (list symbol 'custom-group))))
+
+;;;###autoload
 (defun customize-variable (symbol)
   "Customize SYMBOL, which must be a variable."
   (interactive (custom-variable-prompt))
@@ -617,7 +727,24 @@ If SYMBOL is nil, customize all faces."
 
 ;;;###autoload
 (defun customize-customized ()
-  "Customize all already customized user options."
+  "Customize all user options set since the last save in this session."
+  (interactive)
+  (let ((found nil))
+    (mapatoms (lambda (symbol)
+                (and (get symbol 'customized-face)
+                     (custom-facep symbol)
+                     (setq found (cons (list symbol 'custom-face) found)))
+                (and (get symbol 'customized-value)
+                     (boundp symbol)
+                     (setq found
+                           (cons (list symbol 'custom-variable) found)))))
+    (if found 
+        (custom-buffer-create found)
+      (error "No customized user options"))))
+
+;;;###autoload
+(defun customize-saved ()
+  "Customize all already saved user options."
   (interactive)
   (let ((found nil))
     (mapatoms (lambda (symbol)
@@ -630,7 +757,7 @@ If SYMBOL is nil, customize all faces."
                            (cons (list symbol 'custom-variable) found)))))
     (if found 
         (custom-buffer-create found)
-      (error "No customized user options"))))
+      (error "No saved user options"))))
 
 ;;;###autoload
 (defun customize-apropos (regexp &optional all)
@@ -657,6 +784,8 @@ user-settable."
         (custom-buffer-create found)
       (error "No matches"))))
 
+;;; Buffer.
+
 ;;;###autoload
 (defun custom-buffer-create (options)
   "Create a buffer containing OPTIONS.
@@ -667,6 +796,7 @@ that option."
   (switch-to-buffer (get-buffer-create "*Customization*"))
   (custom-buffer-create-internal options))
 
+;;;###autoload
 (defun custom-buffer-create-other-window (options)
   "Create a buffer containing OPTIONS.
 OPTIONS should be an alist of the form ((SYMBOL WIDGET)...), where
@@ -758,6 +888,7 @@ Make the modifications default for future sessions."
   (message "Creating customization setup...")
   (widget-setup)
   (goto-char (point-min))
+  (forward-line 3)                      ;Kludge: bob is writable in XEmacs.
   (message "Creating customization buffer...done"))
 
 ;;; Modification of Basic Widgets.
@@ -939,6 +1070,7 @@ The list should be sorted most significant first."
   "Show and manipulate state for a customization option."
   :format "%v"
   :action 'widget-choice-item-action
+  :notify 'ignore
   :value-get 'ignore
   :value-create 'custom-magic-value-create
   :value-delete 'widget-children-value-delete)
@@ -998,15 +1130,7 @@ Change the state of this item."
 
 (defun custom-level-action (widget &optional event)
   "Toggle visibility for parent to WIDGET."
-  (let* ((parent (widget-get widget :parent))
-         (state (widget-get parent :custom-state)))
-    (cond ((memq state '(invalid modified))
-           (error "There are unset changes"))
-          ((eq state 'hidden)
-           (widget-put parent :custom-state 'unknown))
-          (t
-           (widget-put parent :custom-state 'hidden)))
-    (custom-redraw parent)))
+  (custom-toggle-hide (widget-get widget :parent)))
 
 ;;; The `custom' Widget.
 
@@ -1094,14 +1218,20 @@ Change the state of this item."
 
 (defun custom-redraw (widget)
   "Redraw WIDGET with current settings."
-  (let ((pos (point))
+  (let ((line (count-lines (point-min) (point)))
+        (column (current-column))
+        (pos (point))
         (from (marker-position (widget-get widget :from)))
         (to (marker-position (widget-get widget :to))))
     (save-excursion
       (widget-value-set widget (widget-value widget))
       (custom-redraw-magic widget))
     (when (and (>= pos from) (<= pos to))
-      (goto-char pos))))
+      (condition-case nil
+          (progn 
+            (goto-line line)
+            (move-to-column column))
+        (error nil)))))
 
 (defun custom-redraw-magic (widget)
   "Redraw WIDGET state with current settings."
@@ -1150,6 +1280,17 @@ Change the state of this item."
   "Load all dependencies for WIDGET."
   (custom-load-symbol (widget-value widget)))
 
+(defun custom-toggle-hide (widget)
+  "Toggle visibility of WIDGET."
+  (let ((state (widget-get widget :custom-state)))
+    (cond ((memq state '(invalid modified))
+           (error "There are unset changes"))
+          ((eq state 'hidden)
+           (widget-put widget :custom-state 'unknown))
+          (t 
+           (widget-put widget :custom-state 'hidden)))
+    (custom-redraw widget)))
+
 ;;; The `custom-variable' Widget.
 
 (defface custom-variable-sample-face '((t (:underline t)))
@@ -1203,8 +1344,10 @@ Otherwise, look up symbol in `custom-guess-type-alist'."
          (tag (widget-get widget :tag))
          (type (custom-variable-type symbol))
          (conv (widget-convert type))
+         (get (or (get symbol 'custom-get) 'default-value))
+         (set (or (get symbol 'custom-set) 'set-default))
          (value (if (default-boundp symbol)
-                    (default-value symbol)
+                    (funcall get symbol)
                   (widget-get conv :value))))
     ;; If the widget is new, the child determine whether it is hidden.
     (cond (state)
@@ -1234,7 +1377,7 @@ Otherwise, look up symbol in `custom-guess-type-alist'."
                                ((get symbol 'factory-value)
                                 (car (get symbol 'factory-value)))
                                ((default-boundp symbol)
-                                (custom-quote (default-value symbol)))
+                                (custom-quote (funcall get symbol)))
                                (t
                                 (custom-quote (widget-get conv :value))))))
              (push (widget-create-child-and-convert 
@@ -1266,8 +1409,9 @@ Otherwise, look up symbol in `custom-guess-type-alist'."
 (defun custom-variable-state-set (widget)
   "Set the state of WIDGET."
   (let* ((symbol (widget-value widget))
+         (get (or (get symbol 'custom-get) 'default-value))
          (value (if (default-boundp symbol)
-                    (default-value symbol)
+                    (funcall get symbol)
                   (widget-get widget :value)))
          tmp
          (state (cond ((setq tmp (get symbol 'customized-value))
@@ -1292,29 +1436,52 @@ Otherwise, look up symbol in `custom-guess-type-alist'."
     (widget-put widget :custom-state state)))
 
 (defvar custom-variable-menu 
-  '(("Edit" . custom-variable-edit)
-    ("Edit Lisp" . custom-variable-edit-lisp)
-    ("Set" . custom-variable-set)
-    ("Save" . custom-variable-save)
-    ("Reset to Current" . custom-redraw)
-    ("Reset to Saved" . custom-variable-reset-saved)
-    ("Reset to Factory Settings" . custom-variable-reset-factory))
+  '(("Hide" custom-toggle-hide
+     (lambda (widget)
+       (not (memq (widget-get widget :custom-state) '(modified invalid)))))
+     ("Edit" custom-variable-edit 
+     (lambda (widget)
+       (not (eq (widget-get widget :custom-form) 'edit))))
+    ("Edit Lisp" custom-variable-edit-lisp
+     (lambda (widget)
+       (not (eq (widget-get widget :custom-form) 'lisp))))
+    ("Set" custom-variable-set
+     (lambda (widget)
+       (eq (widget-get widget :custom-state) 'modified)))
+    ("Save" custom-variable-save
+     (lambda (widget)
+       (memq (widget-get widget :custom-state) '(modified set changed rogue))))
+    ("Reset to Current" custom-redraw
+     (lambda (widget)
+       (and (default-boundp (widget-value widget))
+            (memq (widget-get widget :custom-state) '(modified)))))
+    ("Reset to Saved" custom-variable-reset-saved
+     (lambda (widget)
+       (and (get (widget-value widget) 'saved-value)
+            (memq (widget-get widget :custom-state)
+                  '(modified set changed rogue)))))
+    ("Reset to Factory Settings" custom-variable-reset-factory
+     (lambda (widget)
+       (and (get (widget-value widget) 'factory-value)
+            (memq (widget-get widget :custom-state)
+                  '(modified set changed saved rogue))))))
   "Alist of actions for the `custom-variable' widget.
-The key is a string containing the name of the action, the value is a
-lisp function taking the widget as an element which will be called
-when the action is chosen.")
+Each entry has the form (NAME ACTION FILTER) where NAME is the name of
+the menu entry, ACTION is the function to call on the widget when the
+menu is selected, and FILTER is a predicate which takes a `custom-variable'
+widget as an argument, and returns non-nil if ACTION is valid on that
+widget. If FILTER is nil, ACTION is always valid.")
 
 (defun custom-variable-action (widget &optional event)
   "Show the menu for `custom-variable' WIDGET.
 Optional EVENT is the location for the menu."
   (if (eq (widget-get widget :custom-state) 'hidden)
-      (progn 
-        (widget-put widget :custom-state 'unknown)
-        (custom-redraw widget))
+      (custom-toggle-hide widget)
     (let* ((completion-ignore-case t)
            (answer (widget-choose (custom-unlispify-tag-name
                                    (widget-get widget :value))
-                                  custom-variable-menu
+                                  (custom-menu-filter custom-variable-menu
+                                                      widget)
                                   event)))
       (if answer
           (funcall answer widget)))))
@@ -1333,32 +1500,34 @@ Optional EVENT is the location for the menu."
 
 (defun custom-variable-set (widget)
   "Set the current value for the variable being edited by WIDGET."
-  (let ((form (widget-get widget :custom-form))
-        (state (widget-get widget :custom-state))
-        (child (car (widget-get widget :children)))
-        (symbol (widget-value widget))
-        val)
+  (let* ((form (widget-get widget :custom-form))
+         (state (widget-get widget :custom-state))
+         (child (car (widget-get widget :children)))
+         (symbol (widget-value widget))
+         (set (or (get symbol 'custom-set) 'set-default))
+          val)
     (cond ((eq state 'hidden)
            (error "Cannot set hidden variable."))
           ((setq val (widget-apply child :validate))
            (goto-char (widget-get val :from))
            (error "%s" (widget-get val :error)))
           ((eq form 'lisp)
-           (set-default symbol (eval (setq val (widget-value child))))
+           (funcall set symbol (eval (setq val (widget-value child))))
            (put symbol 'customized-value (list val)))
           (t
-           (set-default symbol (setq val (widget-value child)))
+           (funcall set symbol (setq val (widget-value child)))
            (put symbol 'customized-value (list (custom-quote val)))))
     (custom-variable-state-set widget)
     (custom-redraw-magic widget)))
 
 (defun custom-variable-save (widget)
   "Set the default value for the variable being edited by WIDGET."
-  (let ((form (widget-get widget :custom-form))
-        (state (widget-get widget :custom-state))
-        (child (car (widget-get widget :children)))
-        (symbol (widget-value widget))
-        val)
+  (let* ((form (widget-get widget :custom-form))
+         (state (widget-get widget :custom-state))
+         (child (car (widget-get widget :children)))
+         (symbol (widget-value widget))
+         (set (or (get symbol 'custom-set) 'set-default))
+         val)
     (cond ((eq state 'hidden)
            (error "Cannot set hidden variable."))
           ((setq val (widget-apply child :validate))
@@ -1366,12 +1535,12 @@ 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-default symbol (eval (widget-value child))))
+           (funcall set symbol (eval (widget-value child))))
           (t
            (put symbol
                 'saved-value (list (custom-quote (widget-value
                                                   child))))
-           (set-default symbol (widget-value child))))
+           (funcall set symbol (widget-value child))))
     (put symbol 'customized-value nil)
     (custom-save-all)
     (custom-variable-state-set widget)
@@ -1379,10 +1548,11 @@ Optional EVENT is the location for the menu."
 
 (defun custom-variable-reset-saved (widget)
   "Restore the saved value for the variable being edited by WIDGET."
-  (let ((symbol (widget-value widget)))
+  (let* ((symbol (widget-value widget))
+         (set (or (get symbol 'custom-set) 'set-default)))
     (if (get symbol 'saved-value)
         (condition-case nil
-            (set-default symbol (eval (car (get symbol 'saved-value))))
+            (funcall set symbol (eval (car (get symbol 'saved-value))))
           (error nil))
       (error "No saved value for %s" symbol))
     (put symbol 'customized-value nil)
@@ -1391,9 +1561,10 @@ Optional EVENT is the location for the menu."
 
 (defun custom-variable-reset-factory (widget)
   "Restore the factory setting for the variable being edited by WIDGET."
-  (let ((symbol (widget-value widget)))
+  (let* ((symbol (widget-value widget))
+         (set (or (get symbol 'custom-set) 'set-default)))
     (if (get symbol 'factory-value)
-        (set-default symbol (eval (car (get symbol 'factory-value))))
+        (funcall set symbol (eval (car (get symbol 'factory-value))))
       (error "No factory default for %S" symbol))
     (put symbol 'customized-value nil)
     (when (get symbol 'saved-value)
@@ -1550,9 +1721,7 @@ Match frames with dark backgrounds.")
 
 (defun custom-display-unselected-match (widget value)
   "Non-nil if VALUE is an unselected display specification."
-  (and (listp value)
-       (eq (length value) 2)
-       (not (custom-display-match-frame value (selected-frame)))))
+  (not (custom-display-match-frame value (selected-frame))))
 
 (define-widget 'custom-face-selected 'group 
   "Edit the attributes of the selected display in a face specification."
@@ -1600,17 +1769,32 @@ Match frames with dark backgrounds.")
     (message "Creating face editor...done")))
 
 (defvar custom-face-menu 
-  '(("Edit Selected" . custom-face-edit-selected)
-    ("Edit All" . custom-face-edit-all)
-    ("Edit Lisp" . custom-face-edit-lisp)
-    ("Set" . custom-face-set)
-    ("Save" . custom-face-save)
-    ("Reset to Saved" . custom-face-reset-saved)
-    ("Reset to Factory Setting" . custom-face-reset-factory))
+  '(("Hide" custom-toggle-hide
+     (lambda (widget)
+       (not (memq (widget-get widget :custom-state) '(modified invalid)))))
+    ("Edit Selected" custom-face-edit-selected
+     (lambda (widget)
+       (not (eq (widget-get widget :custom-form) 'selected))))
+    ("Edit All" custom-face-edit-all
+     (lambda (widget)
+       (not (eq (widget-get widget :custom-form) 'all))))
+    ("Edit Lisp" custom-face-edit-lisp
+     (lambda (widget)
+       (not (eq (widget-get widget :custom-form) 'lisp))))
+    ("Set" custom-face-set)
+    ("Save" custom-face-save)
+    ("Reset to Saved" custom-face-reset-saved
+     (lambda (widget)
+       (get (widget-value widget) 'saved-face)))
+    ("Reset to Factory Setting" custom-face-reset-factory
+     (lambda (widget)
+       (get (widget-value widget) 'factory-face))))
   "Alist of actions for the `custom-face' widget.
-The key is a string containing the name of the action, the value is a
-lisp function taking the widget as an element which will be called
-when the action is chosen.")
+Each entry has the form (NAME ACTION FILTER) where NAME is the name of
+the menu entry, ACTION is the function to call on the widget when the
+menu is selected, and FILTER is a predicate which takes a `custom-face'
+widget as an argument, and returns non-nil if ACTION is valid on that
+widget. If FILTER is nil, ACTION is always valid.")
 
 (defun custom-face-edit-selected (widget)
   "Edit selected attributes of the value of WIDGET."
@@ -1646,13 +1830,13 @@ when the action is chosen.")
   "Show the menu for `custom-face' WIDGET.
 Optional EVENT is the location for the menu."
   (if (eq (widget-get widget :custom-state) 'hidden)
-      (progn 
-        (widget-put widget :custom-state 'unknown)
-        (custom-redraw widget))
+      (custom-toggle-hide widget)
     (let* ((completion-ignore-case t)
            (symbol (widget-get widget :value))
            (answer (widget-choose (custom-unlispify-tag-name symbol)
-                                  custom-face-menu event)))
+                                  (custom-menu-filter custom-face-menu
+                                                      widget)
+                                  event)))
       (if answer
           (funcall answer widget)))))
 
@@ -1865,27 +2049,44 @@ and so forth.  The remaining group tags are shown with
         (message "Creating group... done")))))
 
 (defvar custom-group-menu 
-  '(("Set" . custom-group-set)
-    ("Save" . custom-group-save)
-    ("Reset to Current" . custom-group-reset-current)
-    ("Reset to Saved" . custom-group-reset-saved)
-    ("Reset to Factory" . custom-group-reset-factory))
+  '(("Hide" custom-toggle-hide
+     (lambda (widget)
+       (not (memq (widget-get widget :custom-state) '(modified invalid)))))
+    ("Set" custom-group-set
+     (lambda (widget)
+       (eq (widget-get widget :custom-state) 'modified)))
+    ("Save" custom-group-save
+     (lambda (widget)
+       (memq (widget-get widget :custom-state) '(modified set))))
+    ("Reset to Current" custom-group-reset-current
+     (lambda (widget)
+       (and (default-boundp (widget-value widget))
+            (memq (widget-get widget :custom-state) '(modified)))))
+    ("Reset to Saved" custom-group-reset-saved
+     (lambda (widget)
+       (and (get (widget-value widget) 'saved-value)
+            (memq (widget-get widget :custom-state) '(modified set)))))
+    ("Reset to Factory" custom-group-reset-factory
+     (lambda (widget)
+       (and (get (widget-value widget) 'factory-value)
+            (memq (widget-get widget :custom-state) '(modified set saved))))))
   "Alist of actions for the `custom-group' widget.
-The key is a string containing the name of the action, the value is a
-lisp function taking the widget as an element which will be called
-when the action is chosen.")
+Each entry has the form (NAME ACTION FILTER) where NAME is the name of
+the menu entry, ACTION is the function to call on the widget when the
+menu is selected, and FILTER is a predicate which takes a `custom-group'
+widget as an argument, and returns non-nil if ACTION is valid on that
+widget. If FILTER is nil, ACTION is always valid.")
 
 (defun custom-group-action (widget &optional event)
   "Show the menu for `custom-group' WIDGET.
 Optional EVENT is the location for the menu."
   (if (eq (widget-get widget :custom-state) 'hidden)
-      (progn 
-        (widget-put widget :custom-state 'unknown)
-        (custom-redraw widget))
+      (custom-toggle-hide widget)
     (let* ((completion-ignore-case t)
            (answer (widget-choose (custom-unlispify-tag-name
                                    (widget-get widget :value))
-                                  custom-group-menu
+                                  (custom-menu-filter custom-group-menu
+                                                      widget)
                                   event)))
       (if answer
           (funcall answer widget)))))
@@ -1986,17 +2187,26 @@ Leave point at the location of the call, or after the last expression."
         (princ "\n"))
       (princ "(custom-set-variables")
       (mapatoms (lambda (symbol)
-                  (let ((value (get symbol 'saved-value)))
+                  (let ((value (get symbol 'saved-value))
+                        (requests (get symbol 'custom-requests))
+                        (now (not (or (get symbol 'factory-value)
+                                      (and (not (boundp symbol))
+                                           (not (get symbol 'force-value)))))))
                     (when value
                       (princ "\n '(")
                       (princ symbol)
                       (princ " ")
                       (prin1 (car value))
-                      (if (or (get symbol 'factory-value)
-                              (and (not (boundp symbol))
-                                   (not (get symbol 'force-value))))
-                          (princ ")")
-                        (princ " t)"))))))
+                      (cond (requests
+                             (if now
+                                 (princ " t ")
+                               (princ " nil "))
+                             (prin1 requests)
+                             (princ ")"))
+                            (now
+                             (princ " t)"))
+                            (t
+                             (princ ")")))))))
       (princ ")")
       (unless (looking-at "\n")
         (princ "\n")))))
@@ -2038,6 +2248,22 @@ Leave point at the location of the call, or after the last expression."
         (princ "\n")))))
 
 ;;;###autoload
+(defun custom-save-customized ()
+  "Save all user options which have been set in this session."
+  (interactive)
+  (mapatoms (lambda (symbol)
+              (let ((face (get symbol 'customized-face))
+                    (value (get symbol 'customized-value)))
+                (when face 
+                  (put symbol 'saved-face face)
+                  (put symbol 'customized-face nil))
+                (when value 
+                  (put symbol 'saved-value value)
+                  (put symbol 'customized-value nil)))))
+  ;; We really should update all custom buffers here.
+  (custom-save-all))
+
+;;;###autoload
 (defun custom-save-all ()
   "Save all customizations in `custom-file'."
   (custom-save-variables)
@@ -2178,7 +2404,7 @@ The format is suitable for use with `easy-menu-define'."
 
 (easy-menu-define custom-mode-customize-menu 
     custom-mode-map
-  "Menu used in customization buffers."
+  "Menu used to customize customization buffers."
   (customize-menu-create 'customize))
 
 (easy-menu-define custom-mode-menu