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[elisp/wanderlust.git] / wl / wl-summary.el
index 0d481ef..72811d5 100644 (file)
@@ -37,6 +37,7 @@
 
 (require 'elmo)
 (require 'elmo-multi)
+(eval-when-compile (require 'elmo-filter))
 (require 'wl-message)
 (require 'wl-vars)
 (require 'wl-highlight)
 
 (defvar wl-summary-buffer-elmo-folder nil)
 
-(defmacro wl-summary-buffer-folder-name ()
-  (` (and wl-summary-buffer-elmo-folder
-         (elmo-folder-name-internal wl-summary-buffer-elmo-folder))))
+(defun wl-summary-buffer-folder-name ()
+  (and wl-summary-buffer-elmo-folder
+       (elmo-folder-name-internal wl-summary-buffer-elmo-folder)))
 
 (defvar wl-summary-buffer-disp-msg    nil)
 (defvar wl-summary-buffer-disp-folder nil)
 (defvar wl-summary-buffer-temp-mark-list nil)
-(defvar wl-summary-buffer-last-displayed-msg nil)
+(defvar wl-summary-buffer-message-ring nil)
 (defvar wl-summary-buffer-current-msg nil)
 (defvar wl-summary-buffer-unread-count 0)
 (defvar wl-summary-buffer-new-count    0)
 (make-variable-buffer-local 'wl-summary-buffer-disp-folder)
 (make-variable-buffer-local 'wl-summary-buffer-target-mark-list)
 (make-variable-buffer-local 'wl-summary-buffer-temp-mark-list)
-(make-variable-buffer-local 'wl-summary-buffer-last-displayed-msg)
+(make-variable-buffer-local 'wl-summary-buffer-message-ring)
 (make-variable-buffer-local 'wl-summary-buffer-unread-count)
 (make-variable-buffer-local 'wl-summary-buffer-new-count)
 (make-variable-buffer-local 'wl-summary-buffer-answered-count)
 (defvar wl-temp-mark)
 (defvar wl-persistent-mark)
 
-(defmacro wl-summary-sticky-buffer-name (name)
-  (` (concat wl-summary-buffer-name ":" (, name))))
+(defun wl-summary-sticky-buffer-name (name)
+  (concat wl-summary-buffer-name ":" name))
 
 (defun wl-summary-default-subject (subject-string)
   (if (string-match "^[ \t]*\\[[^:]+[,: ][0-9]+\\][ \t]*" subject-string)
@@ -211,42 +212,25 @@ summary's folder name matches with `wl-summary-showto-folder-regexp'
 and (2) sender address is yours.
 
 See also variable `wl-use-petname'."
-  (let (retval tos ng)
-    (unless
-       (and (eq major-mode 'wl-summary-mode)
+  (let ((translator (if wl-use-petname
+                       (lambda (string)
+                         (or (funcall wl-summary-get-petname-function string)
+                             (car (std11-extract-address-components string))
+                             string))
+                     #'identity))
+       to ng)
+    (or (and (eq major-mode 'wl-summary-mode)
             (stringp wl-summary-showto-folder-regexp)
             (string-match wl-summary-showto-folder-regexp
                           (wl-summary-buffer-folder-name))
             (wl-address-user-mail-address-p from)
             (cond
-             ((and (setq tos (elmo-message-entity-field
-                              wl-message-entity 'to t))
-                   (not (string= "" tos)))
-              (setq retval
-                    (concat "To:"
-                            (mapconcat
-                             (function
-                              (lambda (to)
-                                (eword-decode-string
-                                 (if wl-use-petname
-                                     (or
-                                      (funcall
-                                       wl-summary-get-petname-function to)
-                                      (car
-                                       (std11-extract-address-components to))
-                                      to)
-                                   to))))
-                             (wl-parse-addresses tos)
-                             ","))))
-             ((setq ng (elmo-message-entity-field
-                        wl-message-entity 'newsgroups))
-              (setq retval (concat "Ng:" ng)))))
-      (if wl-use-petname
-         (setq retval (or (funcall wl-summary-get-petname-function from)
-                          (car (std11-extract-address-components from))
-                          from))
-       (setq retval from)))
-    retval))
+             ((setq to (elmo-message-entity-field wl-message-entity 'to))
+              (concat "To:" (mapconcat translator to ",")))
+             ((setq ng (elmo-message-entity-field wl-message-entity
+                                                  'newsgroups))
+              (concat "Ng:" ng))))
+       (funcall translator from))))
 
 (defun wl-summary-simple-from (string)
   (if wl-use-petname
@@ -307,7 +291,8 @@ See also variable `wl-use-petname'."
      ["Resend bounced mail" wl-summary-resend-bounced-mail t]
      ["Enter the message" wl-summary-jump-to-current-message t]
      ["Pipe message" wl-summary-pipe-message t]
-     ["Print message" wl-summary-print-message t])
+     ["Print message" wl-summary-print-message t]
+     ["View raw message" wl-summary-display-raw t])
     ("Thread Operation"
      ["Open or Close" wl-thread-open-close (eq wl-summary-buffer-view 'thread)]
      ["Open all"     wl-thread-open-all (eq wl-summary-buffer-view 'thread)]
@@ -403,6 +388,7 @@ See also variable `wl-use-petname'."
   ;; basic commands
   (define-key wl-summary-mode-map " "    'wl-summary-read)
   (define-key wl-summary-mode-map "."    'wl-summary-redisplay)
+  (define-key wl-summary-mode-map ","    'wl-summary-display-raw)
   (define-key wl-summary-mode-map "<"    'wl-summary-display-top)
   (define-key wl-summary-mode-map ">"    'wl-summary-display-bottom)
   (define-key wl-summary-mode-map "\177" 'wl-summary-prev-page)
@@ -444,6 +430,7 @@ See also variable `wl-use-petname'."
   (define-key wl-summary-mode-map "\C-c\C-n" 'wl-summary-next-buffer)
   (define-key wl-summary-mode-map "H"    'wl-summary-toggle-all-header)
   (define-key wl-summary-mode-map "M"    'wl-summary-toggle-mime)
+  (define-key wl-summary-mode-map "\C-cm" 'wl-summary-toggle-mime-buttons)
   (define-key wl-summary-mode-map "B"    'wl-summary-burst)
   (define-key wl-summary-mode-map "Z"    'wl-status-update)
   (define-key wl-summary-mode-map "#"    'wl-summary-print-message)
@@ -598,6 +585,31 @@ See also variable `wl-use-petname'."
       (not (wl-thread-entity-parent-invisible-p
            (wl-thread-get-entity number)))))
 
+(defun wl-summary-push-message (number)
+  (when (and number
+            (not (equal number (car wl-summary-buffer-message-ring))))
+    (setq wl-summary-buffer-message-ring
+         (cons number wl-summary-buffer-message-ring))
+    (when (> (length wl-summary-buffer-message-ring)
+            wl-summary-message-ring-max)
+      (setcdr (nthcdr (1- wl-summary-message-ring-max)
+                     wl-summary-buffer-message-ring)
+             nil))))
+
+(defun wl-summary-pop-message (&optional current-number)
+  (when wl-summary-buffer-message-ring
+    (when current-number
+      (setq wl-summary-buffer-message-ring
+           (nconc wl-summary-buffer-message-ring (list current-number))))
+    (prog1
+       (car wl-summary-buffer-message-ring)
+      (setq wl-summary-buffer-message-ring
+           (cdr wl-summary-buffer-message-ring)))))
+
+(defsubst wl-summary-message-status (&optional number)
+  (elmo-message-status wl-summary-buffer-elmo-folder
+                      (or number (wl-summary-message-number))))
+
 (defun wl-summary-update-mark-and-highlight-window (&optional win beg)
   "A function to be called as window-scroll-functions."
   (with-current-buffer (window-buffer win)
@@ -605,20 +617,13 @@ See also variable `wl-use-petname'."
       (let ((beg (or beg (window-start win)))
            (end (condition-case nil
                     (window-end win t) ; old emacsen doesn't support 2nd arg.
-                  (error (window-end win))))
-           number flags)
+                  (error (window-end win)))))
        (save-excursion
          (goto-char beg)
          (while (and (< (point) end) (not (eobp)))
            (when (or (null (get-text-property (point) 'face))
                      (wl-summary-persistent-mark-invalid-p))
-             (setq number (wl-summary-message-number))
-             (when number
-               (setq flags (elmo-message-flags wl-summary-buffer-elmo-folder
-                                               number)))
-             (let (wl-summary-highlight)
-               (wl-summary-update-persistent-mark number flags))
-             (wl-highlight-summary-current-line number flags))
+             (wl-summary-update-persistent-mark (wl-summary-message-number)))
            (forward-line 1)))))
     (set-buffer-modified-p nil)))
 
@@ -648,34 +653,34 @@ See also variable `wl-use-petname'."
 
 ;; Handler of event from elmo-folder
 (defun wl-summary-update-persistent-mark-on-event (buffer numbers)
-  (save-excursion
-    (set-buffer buffer)
-    (if wl-summary-lazy-update-mark
-       (let ((window-list (get-buffer-window-list (current-buffer) 'nomini t))
-             invalidate)
-         (dolist (number numbers)
-           (when (wl-summary-message-visible-p number)
-             (if (catch 'visible
-                   (let ((window-list window-list)
-                         win)
-                     (while (setq win (car window-list))
-                       (when (wl-summary-jump-to-msg number
-                                                     (window-start win)
-                                                     (window-end win))
-                         (throw 'visible t))
-                       (setq window-list (cdr window-list)))))
-                 (wl-summary-update-persistent-mark number)
-               (setq invalidate t))))
-         (when invalidate
-           (wl-summary-invalidate-persistent-mark)
-           (dolist (win window-list)
-             (wl-summary-validate-persistent-mark
-              (window-start win)
-              (window-end win)))))
-      (dolist (number numbers)
-       (when (and (wl-summary-message-visible-p number)
-                  (wl-summary-jump-to-msg number))
-         (wl-summary-update-persistent-mark number))))))
+  (with-current-buffer buffer
+    (save-excursion
+      (if wl-summary-lazy-update-mark
+         (let ((window-list (get-buffer-window-list (current-buffer) 'nomini t))
+               invalidate)
+           (dolist (number numbers)
+             (when (wl-summary-message-visible-p number)
+               (if (catch 'visible
+                     (let ((window-list window-list)
+                           win)
+                       (while (setq win (car window-list))
+                         (when (wl-summary-jump-to-msg number
+                                                       (window-start win)
+                                                       (window-end win))
+                           (throw 'visible t))
+                         (setq window-list (cdr window-list)))))
+                   (wl-summary-update-persistent-mark number)
+                 (setq invalidate t))))
+           (when invalidate
+             (wl-summary-invalidate-persistent-mark)
+             (dolist (win window-list)
+               (wl-summary-validate-persistent-mark
+                (window-start win)
+                (window-end win)))))
+       (dolist (number numbers)
+         (when (and (wl-summary-message-visible-p number)
+                    (wl-summary-jump-to-msg number))
+           (wl-summary-update-persistent-mark number)))))))
 
 (defun wl-summary-buffer-attach ()
   (when wl-summary-buffer-elmo-folder
@@ -687,10 +692,10 @@ See also variable `wl-use-petname'."
        (wl-summary-update-persistent-mark-on-event buffer numbers)))
     (elmo-connect-signal
      wl-summary-buffer-elmo-folder
-     'cache-changed
+     'status-changed
      (current-buffer)
-     (elmo-define-signal-handler (buffer folder number)
-       (wl-summary-update-persistent-mark-on-event buffer (list number))))
+     (elmo-define-signal-handler (buffer folder numbers)
+       (wl-summary-update-persistent-mark-on-event buffer numbers)))
     (elmo-connect-signal
      wl-summary-buffer-elmo-folder
      'update-overview
@@ -703,7 +708,7 @@ See also variable `wl-use-petname'."
   (when (and (eq major-mode 'wl-summary-mode)
             wl-summary-buffer-elmo-folder)
     (elmo-disconnect-signal 'flag-changed (current-buffer))
-    (elmo-disconnect-signal 'cache-changed (current-buffer))
+    (elmo-disconnect-signal 'status-changed (current-buffer))
     (elmo-disconnect-signal 'update-overview (current-buffer))))
 
 (defun wl-status-update ()
@@ -815,14 +820,16 @@ you."
 (defun wl-summary-detect-mark-position ()
   (let ((column wl-summary-buffer-number-column)
        (formatter wl-summary-buffer-line-formatter)
+       (lang wl-summary-buffer-weekday-name-lang)
+       (dummy-number 10000)
        (dummy-temp (char-to-string 200))
        ;; bind only for the check.
        (wl-summary-new-uncached-mark (char-to-string 201))
        (wl-summary-persistent-mark-priority-list '(new))     ; ditto.
-       (lang wl-summary-buffer-weekday-name-lang)
        wl-summary-highlight
        temp persistent)
     (with-temp-buffer
+      (set-buffer-multibyte t)
       (setq wl-summary-buffer-number-column column
            wl-summary-buffer-line-formatter formatter
            wl-summary-buffer-weekday-name-lang lang)
@@ -830,14 +837,16 @@ you."
        (wl-summary-create-line
        (elmo-msgdb-make-message-entity
         (luna-make-entity 'modb-entity-handler)
-        :number 10000
+        :number dummy-number
         :from "foo"
         :subject "bar"
         :size 100)
        nil
        dummy-temp
-       '(new)
-       nil))
+       (let ((status (elmo-message-status nil dummy-number)))
+         (elmo-message-status-set-flags status '(new))
+         (elmo-message-status-set-killed status nil)
+         status)))
       (goto-char (point-min))
       (setq temp (save-excursion
                   (when (search-forward dummy-temp nil t)
@@ -855,10 +864,8 @@ you."
       (setq folder (wl-folder-get-elmo-folder folder)))
   (setq wl-summary-buffer-elmo-folder folder)
   (make-local-variable 'wl-message-buffer)
-  (setq wl-summary-buffer-mime-charset (or (wl-get-assoc-list-value
-                                           wl-folder-mime-charset-alist
-                                           (elmo-folder-name-internal folder))
-                                          wl-mime-charset))
+  (setq wl-summary-buffer-mime-charset (wl-folder-mime-charset
+                                       (elmo-folder-name-internal folder)))
   (setq wl-summary-buffer-weekday-name-lang
        (or (wl-get-assoc-list-value
             wl-folder-weekday-name-lang-alist
@@ -927,13 +934,13 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
   (setq major-mode 'wl-summary-mode)
   (setq mode-name "Summary")
   (use-local-map wl-summary-mode-map)
-;;;(setq default-directory (or wl-tmp-dir (expand-file-name "~/")))
+;;;  (setq default-directory (or wl-tmp-dir (expand-file-name "~/")))
   (setq buffer-read-only t)
   (setq truncate-lines t)
   (when (boundp 'show-trailing-whitespace)
     (setq show-trailing-whitespace nil))
-;;;(make-local-variable 'tab-width)
-;;;(setq tab-width 1)
+;;;  (make-local-variable 'tab-width)
+;;;  (setq tab-width 1)
   (buffer-disable-undo (current-buffer))
   (setq selective-display t
        selective-display-ellipses nil)
@@ -965,11 +972,9 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
 (defun wl-summary-overview-entity-compare-by-date (x y)
   "Compare entity X and Y by date."
   (condition-case nil
-      (string<
-       (timezone-make-date-sortable
-       (elmo-message-entity-field x 'date))
-       (timezone-make-date-sortable
-       (elmo-message-entity-field y 'date)))
+      (elmo-time<
+       (elmo-message-entity-field x 'date)
+       (elmo-message-entity-field y 'date))
     (error))) ;; ignore error.
 
 (defun wl-summary-overview-entity-compare-by-number (x y)
@@ -981,9 +986,9 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
 (defun wl-summary-overview-entity-compare-by-from (x y)
   "Compare entity X and Y by from."
   (string<
-   (or (elmo-message-entity-field x 'from t)
+   (or (elmo-message-entity-field x 'from)
        wl-summary-no-from-message)
-   (or (elmo-message-entity-field y 'from t)
+   (or (elmo-message-entity-field y 'from)
        wl-summary-no-from-message)))
 
 (defun wl-summary-overview-entity-compare-by-subject (x y)
@@ -993,38 +998,17 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
 
 (defun wl-summary-get-list-info (entity)
   "Returns (\"ML-name\" . ML-count) of ENTITY."
-  (let (sequence ml-name ml-count subject return-path delivered-to mailing-list)
-    (setq sequence (elmo-message-entity-field entity 'x-sequence)
-         ml-name (or (elmo-message-entity-field entity 'x-ml-name)
-                     (and sequence
-                          (car (split-string sequence " "))))
-         ml-count (or (elmo-message-entity-field entity 'x-mail-count)
-                      (elmo-message-entity-field entity 'x-ml-count)
-                      (and sequence
-                           (cadr (split-string sequence " ")))))
-    (and (setq subject (elmo-message-entity-field entity 'subject t))
-        (setq subject (elmo-delete-char ?\n subject))
-        (string-match "^\\s(\\(\\S)+\\)[ :]\\([0-9]+\\)\\s)[ \t]*" subject)
-        (progn
-          (or ml-name (setq ml-name (match-string 1 subject)))
-          (or ml-count (setq ml-count (match-string 2 subject)))))
-    (and (setq return-path
-              (elmo-message-entity-field entity 'return-path))
-        (string-match "^<\\([^@>]+\\)-return-\\([0-9]+\\)-" return-path)
-        (progn
-          (or ml-name (setq ml-name (match-string 1 return-path)))
-          (or ml-count (setq ml-count (match-string 2 return-path)))))
-    (and (setq delivered-to
-              (elmo-message-entity-field entity 'delivered-to))
-        (string-match "^mailing list \\([^@]+\\)@" delivered-to)
-        (or ml-name (setq ml-name (match-string 1 delivered-to))))
-    (and (setq mailing-list
-              (elmo-message-entity-field entity 'mailing-list))
-        ;; *-help@, *-owner@, etc.
-        (string-match "\\(^\\|; \\)contact \\([^@]+\\)-[^-@]+@" mailing-list)
-        (or ml-name (setq ml-name (match-string 2 mailing-list))))
-    (cons (and ml-name (car (split-string ml-name " ")))
-         (and ml-count (string-to-int ml-count)))))
+  (or (elmo-message-entity-field entity 'ml-info)
+      (lexical-let ((entity entity))
+       (let* ((getter (lambda (field)
+                        (elmo-message-entity-field entity field)))
+              (name (elmo-find-list-match-value
+                     elmo-mailing-list-name-spec-list
+                     getter))
+              (count (elmo-find-list-match-value
+                      elmo-mailing-list-count-spec-list
+                      getter)))
+         (cons name (and count (string-to-number count)))))))
 
 (defun wl-summary-overview-entity-compare-by-list-info (x y)
   "Compare entity X and Y by mailing-list info."
@@ -1038,30 +1022,53 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
       (string< (or (car list-info-x) "")
               (or (car list-info-y) "")))))
 
-(defun wl-summary-sort-by-date (reverse)
-  "Sort summary lines into the order by message date; argument means descending order."
-  (interactive "P")
-  (wl-summary-rescan "date" reverse))
-(defun wl-summary-sort-by-number (reverse)
-  "Sort summary lines into the order by message number; argument means descending order."
-  (interactive "P")
-  (wl-summary-rescan "number" reverse))
-(defun wl-summary-sort-by-subject (reverse)
-  "Sort summary lines into the order by subject; argument means descending order."
-  (interactive "P")
-  (wl-summary-rescan "subject" reverse))
-(defun wl-summary-sort-by-from (reverse)
-  "Sort summary lines into the order by from; argument means descending order."
-  (interactive "P")
-  (wl-summary-rescan "from" reverse))
-(defun wl-summary-sort-by-list-info (reverse)
-  "Sort summary lines into the order by mailing list info; argument means descending order."
-  (interactive "P")
-  (wl-summary-rescan "list-info" reverse))
-(defun wl-summary-sort-by-size (reverse)
-  "Sort summary lines into the order by message size; argument means descending order."
-  (interactive "P")
-  (wl-summary-rescan "size" reverse))
+(defun wl-summary-define-sort-command ()
+  "Define functions to sort summary lines by `wl-summary-sort-specs'."
+  (interactive)
+  (dolist (sort-by wl-summary-sort-specs)
+    (fset (intern (format "wl-summary-sort-by-%s" sort-by))
+         `(lambda (&optional reverse)
+            ,(format "\
+Sort summary lines into the order by %s.
+If optional argument REVERSE is non-nil, sort into descending order.
+
+This function is defined by `wl-summary-define-sort-command'." sort-by)
+            (interactive "P")
+            (wl-summary-rescan ,(symbol-name sort-by) reverse)))))
+
+(defun wl-summary-sort-function-from-spec (spec reverse)
+  (let (function)
+    (when (string-match "^!\\(.+\\)$" spec)
+      (setq spec (match-string 1 spec)
+           reverse (not reverse)))
+    (setq function
+         (intern (format "wl-summary-overview-entity-compare-by-%s" spec)))
+    (if reverse
+       `(lambda (x y) (not (,function x y)))
+      function)))
+
+(defun wl-summary-sort-messages (numbers sort-by reverse)
+  (let* ((functions (mapcar
+                    (lambda (spec)
+                      (wl-summary-sort-function-from-spec spec reverse))
+                    (if (listp sort-by) sort-by (list sort-by))))
+        (predicate (if (= (length functions) 1)
+                       (car functions)
+                     (lambda (x y)
+                       (let ((functions functions))
+                         (catch 'done
+                           (dolist (function functions)
+                             (when (funcall function x y)
+                               (throw 'done t))
+                             (when (funcall function y x)
+                               (throw 'done nil)))))))))
+    (mapcar #'elmo-message-entity-number
+           (sort (mapcar (lambda (number)
+                           (elmo-message-entity
+                            wl-summary-buffer-elmo-folder
+                            number))
+                         numbers)
+                 predicate))))
 
 (defun wl-summary-rescan (&optional sort-by reverse disable-killed disable-thread)
   "Rescan current folder without updating."
@@ -1078,26 +1085,15 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
         (and disable-thread wl-summary-search-parent-by-subject-regexp))
        (wl-summary-divide-thread-when-subject-changed
         (and disable-thread wl-summary-divide-thread-when-subject-changed))
-       (predicate (and sort-by
-                       (intern (format "wl-summary-overview-entity-compare-by-%s"
-                                       sort-by))))
-       (sort-label (if reverse "Reverse sorting" "Sorting"))
-       (i 0)
        num
        expunged)
     (erase-buffer)
     (message "Re-scanning...")
-    (when sort-by
-      (message "%s by %s..." sort-label sort-by)
-      (setq numbers
-           (sort numbers
-                 (lambda (x y)
-                   (funcall
-                    predicate
-                    (elmo-message-entity wl-summary-buffer-elmo-folder x)
-                    (elmo-message-entity wl-summary-buffer-elmo-folder y)))))
-      (if reverse (setq numbers (nreverse numbers)))
-      (message "%s by %s...done" sort-label sort-by))
+    (when (and sort-by numbers)
+      (let ((action  (if reverse "Reverse sorting" "Sorting")))
+       (message "%s by %s..." action sort-by)
+       (setq numbers (wl-summary-sort-messages numbers sort-by reverse))
+       (message "%s by %s...done" action sort-by)))
     (setq num (length numbers))
     (setq wl-thread-entity-hashtb (elmo-make-hash (* num 2))
          wl-thread-entity-list nil
@@ -1109,20 +1105,14 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
          wl-summary-buffer-temp-mark-list nil
          wl-summary-delayed-update nil)
     (elmo-kill-buffer wl-summary-search-buf-name)
-    (while numbers
-      (wl-summary-insert-message (elmo-message-entity
-                                 wl-summary-buffer-elmo-folder
-                                 (car numbers))
-                                wl-summary-buffer-elmo-folder
-                                nil)
-      (setq numbers (cdr numbers))
-      (when (> num elmo-display-progress-threshold)
-       (setq i (+ i 1))
-       (if (or (zerop (% i 5)) (= i num))
-           (elmo-display-progress
-            'wl-summary-rescan "Constructing summary structure..."
-            (/ (* i 100) num)))))
-    (when wl-summary-delayed-update
+    (elmo-with-progress-display (wl-summary-insert-line num)
+       "Constructing summary structure"
+      (dolist (number numbers)
+       (wl-summary-insert-message (elmo-message-entity
+                                   wl-summary-buffer-elmo-folder
+                                   number)
+                                  wl-summary-buffer-elmo-folder
+                                  nil))
       (while wl-summary-delayed-update
        (message "Parent (%d) of message %d is no entity"
                 (caar wl-summary-delayed-update)
@@ -1132,12 +1122,8 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
         (cdar wl-summary-delayed-update)
         wl-summary-buffer-elmo-folder nil t)
        (setq wl-summary-delayed-update (cdr wl-summary-delayed-update))))
-    (message "Constructing summary structure...done")
-    (if (eq wl-summary-buffer-view 'thread)
-       (progn
-         (message "Inserting thread...")
-         (wl-thread-insert-top)
-         (message "Inserting thread...done")))
+    (when (eq wl-summary-buffer-view 'thread)
+      (wl-thread-insert-top))
     (when wl-use-scoring
       (wl-summary-score-headers (wl-summary-rescore-msgs
                                 wl-summary-buffer-number-list)
@@ -1154,7 +1140,7 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
 
 (defun wl-summary-rescan-message (number &optional reparent)
   "Rescan current message without updating."
-  (interactive (list (wl-summary-message-number)))
+  (interactive (list (wl-summary-message-number) current-prefix-arg))
   (let ((start-number (wl-summary-message-number))
        (start-column (current-column)))
     (when (wl-summary-jump-to-msg number)
@@ -1163,7 +1149,6 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
             (inhibit-read-only t))
        (if (eq wl-summary-buffer-view 'thread)
            (let* ((thread-entity (wl-thread-get-entity number))
-                  (descendant (wl-thread-entity-get-descendant thread-entity))
                   (thread-parent (wl-thread-entity-get-parent thread-entity))
                   (entity-parent (elmo-message-entity-number
                                   (elmo-message-entity-parent folder entity)))
@@ -1173,24 +1158,27 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
                  (progn
                    (wl-thread-entity-set-linked thread-entity nil)
                    (wl-thread-update-line-on-buffer-sub nil number))
-               (wl-thread-delete-message number 'deep 'update)
-               (dolist (number (cons number descendant))
-                 (setq update-top-list
-                       (nconc
-                        update-top-list
-                        (wl-summary-insert-thread
-                         (elmo-message-entity folder number)
-                         folder
-                         'update))))
-               (when update-top-list
-                 (wl-thread-update-indent-string-thread
-                  (elmo-uniq-list update-top-list)))))
+               (let ((replacements
+                      (cons number
+                            (wl-thread-entity-get-descendant thread-entity))))
+                 (wl-thread-delete-message number 'deep 'update)
+                 (wl-thread-cleanup-symbols replacements)
+                 (dolist (number replacements)
+                   (setq update-top-list
+                         (nconc
+                          update-top-list
+                          (wl-summary-insert-thread
+                           (elmo-message-entity folder number)
+                           folder
+                           'update))))
+                 (when update-top-list
+                   (wl-thread-update-indent-string-thread
+                    (elmo-uniq-list update-top-list))))))
            (delete-region (point-at-bol) (1+ (point-at-eol)))
            (wl-summary-insert-line
             (wl-summary-create-line entity nil
                                     (wl-summary-temp-mark number)
-                                    (elmo-message-flags folder number)
-                                    (elmo-message-cached-p folder number)))))
+                                    (elmo-message-status folder number)))))
       (when (and wl-summary-buffer-disp-msg
                 wl-summary-buffer-current-msg)
        (save-excursion
@@ -1266,9 +1254,9 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
   (when wl-summary-buffer-temp-mark-list
     (wl-summary-exec-with-confirmation
      (format "Execute marks in %s? (answer \"n\" to discard them) "
-            (wl-summary-buffer-folder-name)))
-    (wl-summary-delete-all-temp-marks 'no-msg)
-    (setq wl-summary-scored nil)))
+            (wl-summary-buffer-folder-name))))
+  (wl-summary-delete-all-temp-marks 'no-msg)
+  (setq wl-summary-scored nil))
 
 ;; a subroutine for wl-summary-exit/wl-save-status
 ;; Note that folder is not commited here.
@@ -1396,6 +1384,8 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
         (msgdb-dir (elmo-folder-msgdb-path folder))
         (range (or force-range (wl-summary-input-range
                                 (elmo-folder-name-internal folder)))))
+    (when (symbolp range)
+      (setq range (symbol-name range)))
     (cond ((string-match "rescan" range)
           (let ((msg (wl-summary-message-number))
                 (wl-use-scoring (if (string-match "noscore" range)
@@ -1442,16 +1432,16 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
       (setq fields (cdr fields)))
     (setq candidates (elmo-uniq-list candidates))
     (elmo-with-enable-multibyte
-      (mapcar (function
-              (lambda (x)
-                (setq components (std11-extract-address-components x))
-                (cons (nth 1 components)
-                      (and (car components)
-                           (eword-decode-string
-                            (decode-mime-charset-string
-                             (car components)
-                             mime-charset))))))
-             candidates))))
+      (mapcar
+       (lambda (x)
+        (setq components (std11-extract-address-components x))
+        (cons (nth 1 components)
+              (and (car components)
+                   (eword-decode-string
+                    (decode-mime-charset-string
+                     (car components)
+                     mime-charset)))))
+       candidates))))
 
 (defun wl-summary-edit-addresses-subr (the-email name-in-addr)
   ;; returns nil if there's no change.
@@ -1461,7 +1451,7 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
                 the-email)
        (while (not (or (eq (setq char (read-char)) ?\r)
                        (eq char ?\n)
-                       (eq char ? )
+                       (eq char (string-to-char " "))
                        (eq char ?e)
                        (eq char ?c)
                        (eq char ?d)))
@@ -1471,7 +1461,7 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
         ((or (eq char ?e)
              (eq char ?\n)
              (eq char ?\r)
-             (eq char ? ))
+             (eq char (string-to-char " ")))
          ;; Change Addresses
          (wl-address-add-or-change
           the-email
@@ -1520,7 +1510,7 @@ Optional argument ADDR-STR is used as a target address if specified."
                  (completing-read
                   (format "Target address (%s): " address)
                   (mapcar
-                   (function (lambda (x) (cons (car x) (car x))))
+                   (lambda (x) (cons (car x) (car x)))
                    candidates)
                   nil nil nil nil address))))
        (when address
@@ -1538,7 +1528,7 @@ Optional argument ADDR-STR is used as a target address if specified."
                         (nth 0 address)
                         result)))
 ;;; i'd like to update summary-buffer, but...
-;;;    (wl-summary-rescan)
+;;;      (wl-summary-rescan)
          (run-hooks 'wl-summary-edit-addresses-hook))))))
 
 (defun wl-summary-incorporate (&optional arg)
@@ -1555,25 +1545,27 @@ If ARG is non-nil, checking is omitted."
   "All uncached messages are cached."
   (interactive)
   (unless (elmo-folder-local-p wl-summary-buffer-elmo-folder)
-    (let ((targets (elmo-folder-list-flagged wl-summary-buffer-elmo-folder
-                                            'uncached 'in-msgdb))
-         (count 0)
-         wl-prefetch-confirm
-         wl-prefetch-threshold
-         (elmo-inhibit-display-retrieval-progress t)
-         length msg)
+    (let* ((targets (elmo-folder-list-flagged wl-summary-buffer-elmo-folder
+                                             'uncached 'in-msgdb))
+          (count 0)
+          wl-prefetch-confirm
+          wl-prefetch-threshold
+          (length (length targets))
+          msg)
       (save-excursion
-       (goto-char (point-min))
-       (setq length (length targets))
-       (dolist (target targets)
-         (when (if (not (wl-thread-entity-parent-invisible-p
-                         (wl-thread-get-entity target)))
-                   (progn
-                     (wl-summary-jump-to-msg target)
-                     (wl-summary-prefetch-msg
-                      (wl-summary-message-number)))
-                 (wl-summary-prefetch-msg target))
-           (message "Retrieving... %d/%d" (incf count) length)))
+       (elmo-with-progress-display (wl-summary-prefetch-message length)
+           "Retrieving"
+         (goto-char (point-min))
+         (dolist (target targets)
+           (when (if (not (wl-thread-entity-parent-invisible-p
+                           (wl-thread-get-entity target)))
+                     (progn
+                       (wl-summary-jump-to-msg target)
+                       (wl-summary-prefetch-msg
+                        (wl-summary-message-number)))
+                   (wl-summary-prefetch-msg target))
+             (incf count))
+           (elmo-progress-notify 'wl-summary-prefetch-message)))
        (message "Retrieved %d/%d message(s)" count length)))))
 
 (defun wl-summary-prefetch-msg (number &optional arg)
@@ -1615,7 +1607,7 @@ If ARG is non-nil, checking is omitted."
                            (or
                             (elmo-message-entity-field
                              wl-message-entity
-                             'from t)
+                             'from)
                             "??")))))
                       " ]")
                      size))))
@@ -1636,12 +1628,12 @@ If ARG is non-nil, checking is omitted."
   (narrow-to-region
    (save-excursion
      (goto-char beg)
-     (beginning-of-line)
-     (point))
+     (point-at-bol))
    (save-excursion
      (goto-char end)
-     (if (eq (current-column) 0) (beginning-of-line) (end-of-line))
-     (point))))
+     (if (= (current-column) 0)
+        (point-at-bol)
+       (point-at-eol)))))
 
 (defun wl-summary-prefetch-region-no-mark (beg end &optional prefetch-marks)
   (interactive "r")
@@ -1658,8 +1650,8 @@ If ARG is non-nil, checking is omitted."
        (message "Collecting marks...")
        (goto-char (point-min))
        (while (not (eobp))
-         (setq mark (wl-summary-persistent-mark)
-               msg (wl-summary-message-number))
+         (setq msg (wl-summary-message-number))
+         (setq mark (wl-summary-persistent-mark msg))
          (if (or (and (null prefetch-marks)
                       msg
                       (null (elmo-file-cache-exists-p
@@ -1783,6 +1775,15 @@ If ARG is non-nil, checking is omitted."
       (wl-summary-count-unread)
       (wl-summary-update-modeline))))
 
+(defun wl-summary-recover-messages-region (beg end)
+  "Recover killed messages in region."
+  (interactive "r")
+  (let ((number-list (wl-summary-number-list-from-region beg end)))
+    (if (null number-list)
+       (message "No message.")
+      (elmo-folder-recover-messages wl-summary-buffer-elmo-folder
+                                   number-list))))
+
 (defun wl-summary-mark-as-read-all ()
   (interactive)
   (if (or (not (interactive-p))
@@ -1833,7 +1834,7 @@ If ARG is non-nil, checking is omitted."
       (wl-summary-update-modeline)
       (message "Resuming cache status...done"))))
 
-(defun wl-summary-delete-messages-on-buffer (msgs &optional deleting-info)
+(defun wl-summary-delete-messages-on-buffer (msgs)
   (interactive)
   (save-excursion
     (let ((inhibit-read-only t)
@@ -1841,7 +1842,6 @@ If ARG is non-nil, checking is omitted."
          (msgs2 msgs)
          (len (length msgs))
          (i 0)
-         ;(deleting-info (or deleting-info "Deleting..."))
          update-list)
       (elmo-kill-buffer wl-summary-search-buf-name)
       (while msgs
@@ -1859,17 +1859,13 @@ If ARG is non-nil, checking is omitted."
                (delete-char 1) ; delete '\n'
                (setq wl-summary-buffer-number-list
                      (delq (car msgs) wl-summary-buffer-number-list)))))
-;      (when (> len elmo-display-progress-threshold)
-;        (setq i (1+ i))
-;        (if (or (zerop (% i 5)) (= i len))
-;            (elmo-display-progress
-;             'wl-summary-delete-messages-on-buffer deleting-info
-;             (/ (* i 100) len))))
        (setq msgs (cdr msgs)))
       (when (eq wl-summary-buffer-view 'thread)
-       (wl-thread-update-line-msgs (elmo-uniq-list update-list))
-       (wl-thread-cleanup-symbols msgs2))
-      ;;(message (concat deleting-info "done"))
+       (let ((updates (elmo-uniq-list update-list)))
+         (elmo-with-progress-display (wl-thread-update-line (length updates))
+             "Updating deleted thread"
+           (wl-thread-update-line-msgs updates)
+           (wl-thread-cleanup-symbols msgs2))))
       (wl-summary-count-unread)
       (wl-summary-update-modeline)
       (wl-summary-folder-info-update))))
@@ -1904,16 +1900,18 @@ This function is defined for `window-scroll-functions'"
 (defun wl-summary-sort (reverse)
   "Sort summary lines into the selected order; argument means descending order."
   (interactive "P")
-  (wl-summary-rescan
-   (completing-read
-    (format "%s by (%s): "
-           (if reverse "Reverse sort" "Sort")
-           (symbol-name wl-summary-default-sort-spec))
-    (mapcar (lambda (spec)
-             (list (symbol-name spec)))
-           wl-summary-sort-specs)
-    nil t nil nil (symbol-name wl-summary-default-sort-spec))
-   reverse))
+  (let ((default-value (symbol-name wl-summary-default-sort-spec)))
+    (wl-summary-rescan
+     (wl-completing-read-multiple
+      (format "%s by (%s): " (if reverse "Reverse sort" "Sort") default-value)
+      (nconc
+       (mapcar (lambda (spec) (list (symbol-name spec)))
+              wl-summary-sort-specs)
+       (mapcar (lambda (spec) (list (concat "!" (symbol-name spec))))
+              wl-summary-sort-specs))
+      nil t nil nil
+      default-value)
+     reverse)))
 
 (defun wl-summary-get-available-flags (&optional include-specials)
   (let ((flags (elmo-uniq-list
@@ -1965,8 +1963,8 @@ This function is defined for `window-scroll-functions'"
            (error "(Internal error) Folder is not set:%s" (buffer-name
                                                            (current-buffer))))
          ;; Flush pending append operations (disconnected operation).
-         ;;(setq seen-list
-         ;;(wl-summary-flush-pending-append-operations seen-list))
+;;;      (setq seen-list
+;;;            (wl-summary-flush-pending-append-operations seen-list))
          (goto-char (point-max))
          (wl-folder-confirm-existence folder (elmo-folder-plugged-p folder))
          (setq crossed (elmo-folder-synchronize folder
@@ -1979,8 +1977,7 @@ This function is defined for `window-scroll-functions'"
                          (not wl-summary-lazy-highlight)))
                    append-list delete-list
                    update-thread update-top-list
-                   num diff entity
-                   (i 0))
+                   num diff entity)
                ;; Setup sync-all
                (if sync-all (wl-summary-sync-all-init))
                (setq diff (elmo-list-diff (elmo-folder-list-messages
@@ -2002,28 +1999,22 @@ This function is defined for `window-scroll-functions'"
                (setq num (length append-list))
                (setq wl-summary-delayed-update nil)
                (elmo-kill-buffer wl-summary-search-buf-name)
-               (dolist (number append-list)
-                 (setq entity (elmo-message-entity folder number))
-                 (when (setq update-thread
-                             (wl-summary-insert-message
-                              entity folder
-                              (not sync-all)))
-                   (wl-append update-top-list update-thread))
-                 (if elmo-use-database
-                     (elmo-database-msgid-put
-                      (elmo-message-entity-field entity 'message-id)
-                      (elmo-folder-name-internal folder)
-                      (elmo-message-entity-number entity)))
-                 (when (> num elmo-display-progress-threshold)
-                   (setq i (+ i 1))
-                   (if (or (zerop (% i 5)) (= i num))
-                       (elmo-display-progress
-                        'wl-summary-sync-update
-                        (if (eq wl-summary-buffer-view 'thread)
-                            "Making thread..."
-                          "Inserting message...")
-                        (/ (* i 100) num)))))
-               (when wl-summary-delayed-update
+               (elmo-with-progress-display (wl-summary-insert-line num)
+                   (if (eq wl-summary-buffer-view 'thread)
+                       "Making thread"
+                     "Inserting message")
+                 (dolist (number append-list)
+                   (setq entity (elmo-message-entity folder number))
+                   (when (setq update-thread
+                               (wl-summary-insert-message
+                                entity folder
+                                (not sync-all)))
+                     (wl-append update-top-list update-thread))
+                   (if elmo-use-database
+                       (elmo-database-msgid-put
+                        (elmo-message-entity-field entity 'message-id)
+                        (elmo-folder-name-internal folder)
+                        (elmo-message-entity-number entity))))
                  (while wl-summary-delayed-update
                    (message "Parent (%d) of message %d is no entity"
                             (caar wl-summary-delayed-update)
@@ -2041,16 +2032,11 @@ This function is defined for `window-scroll-functions'"
                           update-top-list)
                  (wl-thread-update-indent-string-thread
                   (elmo-uniq-list update-top-list)))
-               (message (if (eq wl-summary-buffer-view 'thread)
-                            "Making thread...done"
-                          "Inserting message...done"))
                (when (or delete-list append-list)
                  (wl-summary-set-message-modified))
                (when (and sync-all (eq wl-summary-buffer-view 'thread))
                  (elmo-kill-buffer wl-summary-search-buf-name)
-                 (message "Inserting message...")
-                 (wl-thread-insert-top)
-                 (message "Inserting message...done"))
+                 (wl-thread-insert-top))
                (if elmo-use-database
                    (elmo-database-close))
                (run-hooks 'wl-summary-sync-updated-hook)
@@ -2138,51 +2124,41 @@ This function is defined for `window-scroll-functions'"
        (funcall wl-summary-buffer-mode-line-formatter)))
 
 (defun wl-summary-jump-to-msg (&optional number beg end)
-  (interactive "NJump to Number:")
-  (let ((num (or number
-                (string-to-int
-                 (read-from-minibuffer "Jump to Message(No.): "))))
-       (pos (point))
-       regexp)
-    (setq regexp (concat "\r" (int-to-string num) "[^0-9]"))
-    (if (and beg end (or (< pos beg) (< end pos)))
-       (progn
-         (goto-char beg)
-         (if (re-search-forward regexp end t)
-             (progn (backward-char 1) (beginning-of-line) t)
-           (goto-char pos)
-           nil))
-      (beginning-of-line)
-      (if (or (and (re-search-forward regexp end t)
-                  (progn (backward-char 1) t))
-             (re-search-backward regexp beg t))
-         (progn (beginning-of-line) t)
-       nil))))
+  (interactive "NJump to Message (No.): ")
+  (when number
+    (let ((pos (point))
+         regexp)
+      (setq regexp (concat "\r" (number-to-string number) "[^0-9]"))
+      (if (and beg end (or (< pos beg) (< end pos)))
+         (progn
+           (goto-char beg)
+           (if (re-search-forward regexp end t)
+               (progn (backward-char 1) (beginning-of-line) t)
+             (goto-char pos)
+             nil))
+       (beginning-of-line)
+       (if (or (and (re-search-forward regexp end t)
+                    (progn (backward-char 1) t))
+               (re-search-backward regexp beg t))
+           (progn (beginning-of-line) t)
+         nil)))))
 
 (defun wl-summary-highlight-msgs (msgs)
   (save-excursion
-    (let ((len (length msgs))
-         i)
-      (message "Hilighting...")
-      (setq i 0)
+    (elmo-with-progress-display (wl-summary-highlight-line (length msgs))
+       "Hilighting"
       (while msgs
        (if (wl-summary-jump-to-msg (car msgs))
            (wl-highlight-summary-current-line))
        (setq msgs (cdr msgs))
-       (when (> len elmo-display-progress-threshold)
-         (setq i (+ i 1))
-         (if (or (zerop (% i 5)) (= i len))
-             (elmo-display-progress
-              'wl-summary-highlight-msgs "Highlighting..."
-              (/ (* i 100) len)))))
-      (message "Highlighting...done"))))
+       (elmo-progress-notify 'wl-summary-highlight-line)))))
 
 (defun wl-summary-message-number ()
   (save-excursion
     (beginning-of-line)
     (if (or (re-search-forward "\r\\(-?[0-9]+\\)" (point-at-eol) t)
            (re-search-forward "^ *\\(-?[0-9]+\\)" (point-at-eol) t))
-       (string-to-int (wl-match-buffer 1))
+       (string-to-number (wl-match-buffer 1))
       nil)))
 
 (defun wl-summary-delete-all-msgs ()
@@ -2285,7 +2261,7 @@ If ARG, without confirm."
        (wl-summary-sticky-buffer-name
        (wl-summary-buffer-folder-name)))
 ;;; ???hang up
-;;;   (rename-buffer (wl-summary-sticky-buffer-name
+;;;      (rename-buffer (wl-summary-sticky-buffer-name
 ;;;                  (wl-summary-buffer-folder-name))))
       (message "Folder `%s' is now sticky." (wl-summary-buffer-folder-name)))))
 
@@ -2326,12 +2302,11 @@ If ARG, without confirm."
     (wl-summary-mode)
     (wl-summary-buffer-set-folder folder)
     (let ((buffer-read-only nil))
-      (insert-buffer cur-buf))
+      (insert-buffer-substring cur-buf))
     (set-buffer-modified-p nil)
     (while copy-variables
       (set (car copy-variables)
-          (save-excursion
-            (set-buffer cur-buf)
+          (with-current-buffer cur-buf
             (symbol-value (car copy-variables))))
       (setq copy-variables (cdr copy-variables)))
     (switch-to-buffer buf)
@@ -2346,9 +2321,13 @@ If ARG, without confirm."
       (beginning-of-line))))
 
 (defun wl-summary-get-buffer (folder)
-  (or (and folder
-          (get-buffer (wl-summary-sticky-buffer-name folder)))
-      (get-buffer wl-summary-buffer-name)))
+  (and folder
+       (or (get-buffer (wl-summary-sticky-buffer-name folder))
+          (let ((buffer (get-buffer wl-summary-buffer-name)))
+            (and buffer
+                 (with-current-buffer buffer
+                   (string= (wl-summary-buffer-folder-name) folder))
+                 buffer)))))
 
 (defun wl-summary-get-buffer-create (name &optional force-sticky)
   (if force-sticky
@@ -2403,17 +2382,19 @@ If ARG, without confirm."
               (eq major-mode 'wl-summary-mode)) ; called in summary.
       (setq wl-summary-last-visited-folder (wl-summary-buffer-folder-name))
       (run-hooks 'wl-summary-exit-pre-hook)
-      (if (or force-exit (not (wl-summary-sticky-p)))
+      (let ((discard-contents (or force-exit (not (wl-summary-sticky-p)))))
+       (when discard-contents
          (wl-summary-cleanup-temp-marks))
-      (wl-summary-save-view)
-      (elmo-folder-commit wl-summary-buffer-elmo-folder)
+       (wl-summary-save-view)
+       (if discard-contents
+           (elmo-folder-close wl-summary-buffer-elmo-folder)
+         (elmo-folder-commit wl-summary-buffer-elmo-folder)))
       (if (and (wl-summary-sticky-p) force-exit)
          (kill-buffer (current-buffer))))
     (setq buf (wl-summary-get-buffer-create (elmo-folder-name-internal folder)
                                            sticky))
     (setq reuse-buf
-         (save-excursion
-           (set-buffer buf)
+         (with-current-buffer buf
            (string= (elmo-folder-name-internal folder)
                     (wl-summary-buffer-folder-name))))
     (unwind-protect
@@ -2432,7 +2413,7 @@ If ARG, without confirm."
                    'as-is
                  'mime))
          (setq wl-summary-buffer-disp-msg nil)
-         (setq wl-summary-buffer-last-displayed-msg nil)
+         (setq wl-summary-buffer-message-ring nil)
          (setq wl-summary-buffer-current-msg nil)
          (setq wl-summary-buffer-persistent-mark-version 0)
          (let ((inhibit-read-only t)
@@ -2606,16 +2587,21 @@ If ARG, without confirm."
   (if wl-use-highlight-mouse-line
       ;; remove 'mouse-face of current line.
       (put-text-property
-       (save-excursion (beginning-of-line)(point))
-       (save-excursion (end-of-line)(point))
+       (point-at-bol) (point-at-eol)
        'mouse-face nil))
   (insert line "\n")
+  (save-excursion
+    (forward-line -1)
+    (let* ((number (wl-summary-message-number))
+          (mark-info (wl-summary-registered-temp-mark number)))
+      (when (and mark-info (nth 2 mark-info))
+       (wl-summary-print-argument number (nth 2 mark-info)))))
   (if wl-use-highlight-mouse-line
       ;; remove 'mouse-face of current line.
       (put-text-property
-       (save-excursion (beginning-of-line)(point))
-       (save-excursion (end-of-line)(point))
+       (point-at-bol) (point-at-eol)
        'mouse-face nil))
+  (elmo-progress-notify 'wl-summary-insert-line)
   (ignore-errors
     (run-hooks 'wl-summary-line-inserted-hook)))
 
@@ -2627,12 +2613,7 @@ If ARG, without confirm."
       (goto-char (point-max))
       (wl-summary-insert-line
        (wl-summary-create-line entity nil nil
-                              (elmo-message-flags
-                               wl-summary-buffer-elmo-folder
-                               number)
-                              (elmo-message-cached-p
-                               wl-summary-buffer-elmo-folder
-                               number)))
+                              (elmo-message-status folder number)))
       (setq wl-summary-buffer-number-list
            (wl-append wl-summary-buffer-number-list
                       (list (elmo-message-entity-number entity))))
@@ -2648,15 +2629,15 @@ If ARG, without confirm."
           (funcall wl-summary-subject-filter-function subject2)))
 
 (defmacro wl-summary-put-alike (alike)
-  (` (elmo-set-hash-val (format "#%d" (wl-count-lines))
-                       (, alike)
-                       wl-summary-alike-hashtb)))
+  `(elmo-set-hash-val (format "#%d" (wl-count-lines))
+                     ,alike
+                     wl-summary-alike-hashtb))
 
-(defmacro wl-summary-get-alike ()
-  (` (elmo-get-hash-val (format "#%d" (wl-count-lines))
-                       wl-summary-alike-hashtb)))
+(defsubst wl-summary-get-alike ()
+  (elmo-get-hash-val (format "#%d" (wl-count-lines))
+                    wl-summary-alike-hashtb))
 
-(defun wl-summary-insert-headers (folder func mime-decode)
+(defun wl-summary-insert-headers (folder func &optional mime-decode)
   (let ((numbers (elmo-folder-list-messages folder 'visible t))
        ov this last alike)
     (buffer-disable-undo (current-buffer))
@@ -2697,15 +2678,12 @@ If ARG, without confirm."
          (message "Creating subject cache...")
          (wl-summary-insert-headers
           folder
-          (function
-           (lambda (x)
-             (funcall wl-summary-subject-filter-function
-                      (elmo-message-entity-field x 'subject))))
-          t)
+          (lambda (x)
+            (funcall wl-summary-subject-filter-function
+                     (elmo-message-entity-field x 'subject))))
          (message "Creating subject cache...done"))
        (setq match (funcall wl-summary-subject-filter-function
-                            (elmo-message-entity-field entity 'subject
-                                                       'decode)))
+                            (elmo-message-entity-field entity 'subject)))
        (if (string= match "")
            (setq match "\n"))
        (goto-char (point-max))
@@ -2795,10 +2773,9 @@ If ARG, without confirm."
        (if (and parent-number
                 wl-summary-divide-thread-when-subject-changed
                 (not (wl-summary-subject-equal
-                      (or (elmo-message-entity-field entity
-                                                     'subject t) "")
+                      (or (elmo-message-entity-field entity 'subject) "")
                       (or (elmo-message-entity-field parent-entity
-                                                     'subject t) ""))))
+                                                     'subject) ""))))
            (setq parent-number nil))
        (setq retval
              (wl-thread-insert-message entity
@@ -2842,8 +2819,7 @@ If ARG, without confirm."
          entity
          parent-entity
          nil
-         (elmo-message-flags wl-summary-buffer-elmo-folder number)
-         (elmo-message-cached-p wl-summary-buffer-elmo-folder number)
+         (wl-summary-message-status number)
          (wl-thread-maybe-get-children-num number)
          (wl-thread-make-indent-string thr-entity)
          (wl-thread-entity-get-linked thr-entity)))))))
@@ -2968,60 +2944,60 @@ If ARG, exit virtual folder."
   (setq wl-summary-buffer-persistent-mark-version
        (1+ wl-summary-buffer-persistent-mark-version)))
 
-(defsubst wl-summary-persistent-mark-string (folder flags cached)
+(defsubst wl-summary-persistent-mark-string (folder status)
   "Return the persistent mark string.
-The mark is decided according to the FOLDER, FLAGS and CACHED."
+The mark is decided according to the FOLDER and STATUS."
   (let ((priorities wl-summary-persistent-mark-priority-list)
+       (flags (elmo-message-status-flags status))
+       (cached (elmo-message-status-cached-p status))
        mark)
     (while (and (null mark) priorities)
-      (if (and (eq (car priorities) 'flag)
-              (elmo-get-global-flags flags 'ignore-preserved))
-         (let ((specs wl-summary-flag-alist)
+      (let ((flag (car priorities)))
+       (cond
+        ((eq flag 'flag)
+         (let ((flags (elmo-get-global-flags flags 'ignore-preserved))
+               (specs wl-summary-flag-alist)
                spec)
-           (while (setq spec (car specs))
-             (if (memq (car spec) flags)
-                 (setq mark (or (nth 2 spec) wl-summary-flag-mark)
-                       specs nil)
-               (setq specs (cdr specs))))
-           (unless mark
-             (setq mark wl-summary-flag-mark)))
-       (when (memq (car priorities) flags)
+           (when flags
+             (while (setq spec (car specs))
+               (if (memq (car spec) flags)
+                   (setq mark (or (nth 2 spec) wl-summary-flag-mark)
+                         specs nil)
+                 (setq specs (cdr specs))))
+             (unless mark
+               (setq mark wl-summary-flag-mark)))))
+        ((eq flag 'killed)
+         (when (elmo-message-status-killed-p status)
+           (setq mark wl-summary-killed-mark)))
+        ((memq flag flags)
          (setq mark
-               (let ((var
-                      (intern
-                       (if cached
+               (let ((var (intern-soft
                            (format
-                            "wl-summary-%s-cached-mark" (car priorities))
-                         (format
-                          "wl-summary-%s-uncached-mark" (car priorities))))))
-                 (if (and (boundp var)
-                          (symbol-value var))
-                     (symbol-value var)
-                   (if cached
-                       (downcase (substring (symbol-name (car priorities))
-                                            0 1))
-                     (upcase (substring (symbol-name (car priorities))
-                                        0 1))))))))
-      (setq priorities (cdr priorities)))
+                            (if cached
+                                "wl-summary-%s-cached-mark"
+                              "wl-summary-%s-uncached-mark")
+                            flag))))
+                 (or (and var (boundp var) (symbol-value var))
+                     (funcall (if cached #'downcase #'upcase)
+                              (substring (symbol-name flag) 0 1)))))))
+       (setq priorities (cdr priorities))))
     (or mark
        (if (or cached (elmo-folder-local-p folder))
            nil
          wl-summary-uncached-mark))))
 
-(defsubst wl-summary-message-mark (folder number &optional flags)
+(defsubst wl-summary-message-mark (folder number &optional status)
   "Return mark of the message."
   (ignore-errors
     (wl-summary-persistent-mark-string
      folder
-     (or flags (setq flags (elmo-message-flags folder number)))
-     (memq 'cached flags) ; XXX for speed-up.
-     )))
+     (or status (elmo-message-status folder number)))))
 
-(defsubst wl-summary-persistent-mark (&optional number flags)
+(defsubst wl-summary-persistent-mark (&optional number status)
   "Return persistent-mark string of current line."
   (or (wl-summary-message-mark wl-summary-buffer-elmo-folder
                               (or number (wl-summary-message-number))
-                              flags)
+                              status)
       " "))
 
 (defun wl-summary-put-temp-mark (mark)
@@ -3118,6 +3094,19 @@ The mark is decided according to the FOLDER, FLAGS and CACHED."
       (wl-summary-count-unread)
       (wl-summary-update-modeline))))
 
+(defun wl-summary-target-mark-recover ()
+  "Recover killed messages which have target mark."
+  (interactive)
+  (wl-summary-check-target-mark)
+  (save-excursion
+    (let ((inhibit-read-only t)
+         (buffer-read-only nil)
+         wl-summary-buffer-disp-msg)
+      (elmo-folder-recover-messages wl-summary-buffer-elmo-folder
+                                   wl-summary-buffer-target-mark-list)
+      (dolist (number wl-summary-buffer-target-mark-list)
+       (wl-summary-unset-mark number)))))
+
 (defun wl-summary-target-mark-save ()
   (interactive)
   (wl-summary-check-target-mark)
@@ -3137,29 +3126,30 @@ The mark is decided according to the FOLDER, FLAGS and CACHED."
   (wl-summary-check-target-mark)
   (wl-summary-pick wl-summary-buffer-target-mark-list 'delete))
 
-(defun wl-summary-update-persistent-mark (&optional number flags)
+(defun wl-summary-update-persistent-mark (&optional number)
   "Synch up persistent mark of current line with msgdb's.
 Return non-nil if the mark is updated"
   (interactive)
-  (prog1
-      (when wl-summary-buffer-persistent-mark-column
-       (save-excursion
-         (move-to-column wl-summary-buffer-persistent-mark-column)
-         (let ((inhibit-read-only t)
-               (buffer-read-only nil)
-               (mark (buffer-substring (- (point) 1) (point)))
-               (new-mark (wl-summary-persistent-mark number flags)))
-           (prog1
-               (unless (string= new-mark mark)
-                 (delete-backward-char 1)
-                 (insert new-mark)
-                 (wl-summary-set-message-modified)
-                 t)
-             (wl-summary-validate-persistent-mark (point-at-bol)
-                                                  (point-at-eol))))))
-    (when wl-summary-highlight
-      (wl-highlight-summary-current-line))
-    (set-buffer-modified-p nil)))
+  (let ((status (wl-summary-message-status number)))
+    (prog1
+       (when wl-summary-buffer-persistent-mark-column
+         (save-excursion
+           (move-to-column wl-summary-buffer-persistent-mark-column)
+           (let ((inhibit-read-only t)
+                 (buffer-read-only nil)
+                 (mark (buffer-substring (- (point) 1) (point)))
+                 (new-mark (wl-summary-persistent-mark number status)))
+             (prog1
+                 (unless (string= new-mark mark)
+                   (delete-backward-char 1)
+                   (insert new-mark)
+                   (wl-summary-set-message-modified)
+                   t)
+               (wl-summary-validate-persistent-mark (point-at-bol)
+                                                    (point-at-eol))))))
+      (when wl-summary-highlight
+       (wl-highlight-summary-current-line number status))
+      (set-buffer-modified-p nil))))
 
 (defsubst wl-summary-mark-as-read-internal (inverse
                                            number-or-numbers
@@ -3424,6 +3414,14 @@ Return non-nil if the mark is updated"
      'important
      nil nil nil (interactive-p))))
 
+(defun wl-summary-recover-message (number)
+  "Recover current message if it is killed."
+  (interactive (list (wl-summary-message-number)))
+  (if (null number)
+      (message "No message.")
+    (elmo-folder-recover-messages wl-summary-buffer-elmo-folder
+                                 (list number))))
+
 ;;; Summary line.
 (defvar wl-summary-line-formatter nil)
 
@@ -3496,18 +3494,16 @@ Return non-nil if the mark is updated"
          (elmo-delete-char ?\n
                            (or (elmo-message-entity-field
                                 wl-message-entity
-                                'subject t)
+                                'subject)
                                wl-summary-no-subject-message)))
     (setq parent-raw-subject
-         (elmo-message-entity-field wl-parent-message-entity
-                                    'subject t))
+         (elmo-message-entity-field wl-parent-message-entity 'subject))
     (setq parent-subject
          (if parent-raw-subject
              (elmo-delete-char ?\n parent-raw-subject)))
     (if (or no-parent
            (null parent-subject)
-           (not (wl-summary-subject-equal
-                 subject parent-subject)))
+           (not (wl-summary-subject-equal subject parent-subject)))
        (funcall wl-summary-subject-function subject)
       "")))
 
@@ -3516,7 +3512,7 @@ Return non-nil if the mark is updated"
                    (funcall wl-summary-from-function
                             (elmo-message-entity-field
                              wl-message-entity
-                             'from t))))
+                             'from))))
 
 (defun wl-summary-line-list-info ()
   (let ((list-info (wl-summary-get-list-info wl-message-entity)))
@@ -3541,17 +3537,16 @@ Return non-nil if the mark is updated"
       "")))
 
 ;;; For future use.
-;;(defun wl-summary-line-cached ()
-;;  (if (elmo-message-cached-p wl-summary-buffer-elmo-folder
-;;                          (elmo-message-entity-number wl-message-entity))
-;;      " "
-;;    "u"))
+;;;(defun wl-summary-line-cached ()
+;;;  (if (elmo-message-cached-p wl-summary-buffer-elmo-folder
+;;;                         (elmo-message-entity-number wl-message-entity))
+;;;      " "
+;;;    "u"))
 
 (defun wl-summary-create-line (wl-message-entity
                               wl-parent-message-entity
                               wl-temp-mark
-                              wl-flags
-                              wl-cached
+                              wl-status
                               &optional
                               wl-thr-children-number
                               wl-thr-indent-string
@@ -3560,17 +3555,13 @@ Return non-nil if the mark is updated"
   (let ((wl-mime-charset wl-summary-buffer-mime-charset)
        (wl-persistent-mark (wl-summary-persistent-mark-string
                             wl-summary-buffer-elmo-folder
-                            wl-flags
-                            wl-cached))
+                            wl-status))
        (elmo-mime-charset wl-summary-buffer-mime-charset)
        (elmo-lang wl-summary-buffer-weekday-name-lang)
-       (wl-datevec (or (ignore-errors (timezone-fix-time
-                                       (elmo-message-entity-field
-                                        wl-message-entity
-                                        'date)
-                                       nil
-                                       wl-summary-fix-timezone))
-                       (make-vector 5 0)))
+       (wl-datevec (or (elmo-time-to-datevec
+                        (elmo-message-entity-field wl-message-entity 'date)
+                        wl-summary-fix-timezone)
+                       (make-vector 7 0)))
        (entity wl-message-entity) ; backward compatibility.
        line mark)
     (if (and wl-thr-indent-string
@@ -3595,7 +3586,7 @@ Return non-nil if the mark is updated"
        (wl-highlight-summary-line-string
         (elmo-message-entity-number wl-message-entity)
         line
-        wl-flags
+        wl-status
         wl-temp-mark
         wl-thr-indent-string))
     line))
@@ -3758,7 +3749,7 @@ Return non-nil if the mark is updated"
     (setq range
          (completing-read (format "Range (%s): " default)
                           (mapcar
-                           (function (lambda (x) (cons x x)))
+                           (lambda (x) (cons x x))
                            input-range-list)))
     (if (string= range "")
        default
@@ -3998,8 +3989,7 @@ Return t if message exists."
        (wl-draft-body-goto-top)
        (wl-draft-enclose-digest-region (point) (point-max)))
       (goto-char start-point)
-      (save-excursion
-       (set-buffer summary-buf)
+      (with-current-buffer summary-buf
        (wl-summary-delete-all-target-marks)))
     (run-hooks 'wl-mail-setup-hook)))
 
@@ -4027,8 +4017,7 @@ Return t if message exists."
          (wl-draft-yank-original)
          (setq mlist (cdr mlist)))
        (goto-char start-point)
-       (save-excursion
-         (set-buffer summary-buf)
+       (with-current-buffer summary-buf
          (wl-summary-delete-all-target-marks)))
       (wl-draft-reply-position wl-draft-reply-default-position)
       (run-hooks 'wl-mail-setup-hook))))
@@ -4229,8 +4218,7 @@ Return t if message exists."
             nil)))))
 
 (defun wl-summary-reply (&optional arg without-setup-hook)
-  "Reply to current message. Default is \"wide\" reply.
-Reply to author if invoked with ARG."
+  "Reply to current message. See also `wl-draft-reply'."
   (interactive "P")
   (let ((folder wl-summary-buffer-elmo-folder)
        (number (wl-summary-message-number))
@@ -4252,11 +4240,10 @@ Reply to author if invoked with ARG."
       (with-current-buffer summary-buf (run-hooks 'wl-summary-reply-hook))
       t)))
 
-(defun wl-summary-write ()
+(defun wl-summary-write (folder)
   "Write a new draft from Summary."
-  (interactive)
-  (wl-draft (list (cons 'To ""))
-           nil nil nil nil (wl-summary-buffer-folder-name))
+  (interactive (list (wl-summary-buffer-folder-name)))
+  (wl-draft (list (cons 'To "")) nil nil nil nil folder)
   (run-hooks 'wl-mail-setup-hook)
   (mail-position-on-field "To"))
 
@@ -4268,12 +4255,10 @@ Reply to author if invoked with ARG."
 Call from `wl-summary-write-current-folder'.
 When guess function return nil, challenge next guess-function.")
 
-(defun wl-summary-write-current-folder (&optional folder)
+(defun wl-summary-write-current-folder (folder)
   "Write message to current FOLDER's newsgroup or mailing-list.
 Use function list is `wl-summary-write-current-folder-functions'."
-  (interactive)
-  ;; default FOLDER is current buffer folder
-  (setq folder (or folder (wl-summary-buffer-folder-name)))
+  (interactive (list (wl-summary-buffer-folder-name)))
   (let ((func-list wl-summary-write-current-folder-functions)
        guess-list guess-func)
     (while func-list
@@ -4283,7 +4268,7 @@ Use function list is `wl-summary-write-current-folder-functions'."
        (setq guess-func (car func-list))
        (setq func-list nil)))
     (if (null guess-func)
-       (wl-summary-write)
+       (wl-summary-write folder)
       (unless (or (stringp (nth 0 guess-list))
                  (stringp (nth 1 guess-list))
                  (stringp (nth 2 guess-list)))
@@ -4422,36 +4407,34 @@ Use function list is `wl-summary-write-current-folder-functions'."
                (wl-summary-entity-info-msg next-entity finfo)))))))))
 
 (defun wl-summary-get-prev-folder ()
-  (let ((folder-buf (get-buffer wl-folder-buffer-name))
-       last-entity cur-id)
+  (let ((folder-buf (get-buffer wl-folder-buffer-name)))
     (when folder-buf
-      (setq cur-id (save-excursion (set-buffer folder-buf)
-                                  wl-folder-buffer-cur-entity-id))
-      (wl-folder-get-prev-folder cur-id))))
+      (wl-folder-get-prev-folder
+       (with-current-buffer folder-buf
+        wl-folder-buffer-cur-entity-id)))))
 
 (defun wl-summary-get-next-folder ()
-  (let ((folder-buf (get-buffer wl-folder-buffer-name))
-       cur-id)
+  (let ((folder-buf (get-buffer wl-folder-buffer-name)))
     (when folder-buf
-      (setq cur-id (save-excursion (set-buffer folder-buf)
-                                  wl-folder-buffer-cur-entity-id))
-      (wl-folder-get-next-folder cur-id))))
+      (wl-folder-get-next-folder
+       (with-current-buffer folder-buf
+        wl-folder-buffer-cur-entity-id)))))
 
 (defun wl-summary-get-next-unread-folder ()
-  (let ((folder-buf (get-buffer wl-folder-buffer-name))
-       cur-id)
+  (let ((folder-buf (get-buffer wl-folder-buffer-name)))
     (when folder-buf
-      (setq cur-id (save-excursion (set-buffer folder-buf)
-                                  wl-folder-buffer-cur-entity-id))
-      (wl-folder-get-next-folder cur-id 'unread))))
+      (wl-folder-get-next-folder
+       (with-current-buffer folder-buf
+        wl-folder-buffer-cur-entity-id)
+       'unread))))
 
 (defun wl-summary-get-prev-unread-folder ()
-  (let ((folder-buf (get-buffer wl-folder-buffer-name))
-       cur-id)
+  (let ((folder-buf (get-buffer wl-folder-buffer-name)))
     (when folder-buf
-      (setq cur-id (save-excursion (set-buffer folder-buf)
-                                  wl-folder-buffer-cur-entity-id))
-      (wl-folder-get-prev-folder cur-id 'unread))))
+      (wl-folder-get-prev-folder
+       (with-current-buffer folder-buf
+        wl-folder-buffer-cur-entity-id)
+       'unread))))
 
 (defun wl-summary-down (&optional interactive skip-no-unread)
   (interactive)
@@ -4478,17 +4461,37 @@ Use function list is `wl-summary-write-current-folder-functions'."
                "No more unread messages. Type SPC to go to %s."
                (wl-summary-entity-info-msg next-entity finfo)))))))))
 
-(defun wl-summary-goto-last-displayed-msg ()
+(defun wl-summary-pop-to-last-message ()
+  "Jump to last displayed message, and pop a new massage off the ring."
   (interactive)
-  (unless wl-summary-buffer-last-displayed-msg
-    (setq wl-summary-buffer-last-displayed-msg
-         wl-summary-buffer-current-msg))
-  (if wl-summary-buffer-last-displayed-msg
-      (progn
-       (wl-summary-jump-to-msg wl-summary-buffer-last-displayed-msg)
-       (if wl-summary-buffer-disp-msg
-           (wl-summary-redisplay)))
-    (message "No last message.")))
+  (let ((number (wl-summary-pop-message (wl-summary-message-number))))
+    (unless number
+      (error "Empty message ring"))
+    (wl-summary-jump-to-msg number)
+    (when wl-summary-buffer-disp-msg
+      (let (wl-summary-buffer-message-ring)
+       (wl-summary-redisplay)))))
+
+(defun wl-summary-goto-last-displayed-msg (&optional arg)
+  "Jump to last displayed message."
+  (interactive "P")
+  (cond
+   ((eq last-command 'wl-summary-pop-to-last-message)
+    (setq this-command 'wl-summary-pop-to-last-message)
+    (wl-summary-pop-to-last-message))
+   (arg
+    (setq this-command 'wl-summary-pop-to-last-message)
+    (wl-summary-pop-to-last-message))
+   (t
+    (let ((current (wl-summary-message-number))
+         (number (wl-summary-pop-message)))
+      (if number
+         (progn
+           (wl-summary-jump-to-msg number)
+           (if wl-summary-buffer-disp-msg
+               (wl-summary-redisplay)
+             (wl-summary-push-message current)))
+       (message "No last message."))))))
 
 (defun wl-summary-message-display-type ()
   (when (and wl-summary-buffer-disp-msg
@@ -4596,8 +4599,7 @@ If ARG is numeric number, decode message as following:
     (if num
        (progn
          (setq wl-summary-buffer-disp-msg t)
-         (setq wl-summary-buffer-last-displayed-msg
-               wl-summary-buffer-current-msg)
+         (wl-summary-push-message wl-summary-buffer-current-msg)
          ;; hide folder window
          (if (and (not wl-stay-folder-window)
                   (setq fld-buf (get-buffer wl-folder-buffer-name)))
@@ -4736,6 +4738,31 @@ If ARG is numeric number, decode message as following:
        (if message-buf (set-buffer message-buf))
        (wl-draft-edit-string (buffer-substring (point-min) (point-max)))))))
 
+(defun wl-summary-display-raw (&optional arg)
+  "Display current message in raw format."
+  (interactive)
+  (let ((number (wl-summary-message-number))
+       (folder wl-summary-buffer-elmo-folder))
+    (if number
+       (let ((raw (elmo-message-fetch-string 
+                   folder number
+                   (elmo-find-fetch-strategy folder number)))
+             (raw-buffer (get-buffer-create "*wl:raw message*"))
+             (raw-mode-map (make-sparse-keymap)))
+         (with-current-buffer raw-buffer
+           (toggle-read-only -1)
+           (erase-buffer)
+           (princ raw raw-buffer)
+           (toggle-read-only t)
+           (goto-char (point-min))
+           (switch-to-buffer-other-window raw-buffer)
+           (define-key raw-mode-map "l" 'toggle-truncate-lines)
+           (define-key raw-mode-map "q" 'kill-buffer-and-window)
+           (define-key raw-mode-map "," 'kill-buffer-and-window)
+           (use-local-map raw-mode-map)))
+      (message "No message to display."))
+    number))
+
 (defun wl-summary-save (&optional arg wl-save-dir)
   "Save current message to disk."
   (interactive)
@@ -4746,7 +4773,7 @@ If ARG is numeric number, decode message as following:
     (if num
        (save-excursion
          (setq filename (expand-file-name
-                         (concat (int-to-string num)
+                         (concat (number-to-string num)
                                  wl-summary-save-file-suffix)
                          wl-save-dir))
          (when (or (null arg)
@@ -4792,8 +4819,8 @@ If ARG is numeric number, decode message as following:
   (interactive (list current-prefix-arg nil))
   (if (null (wl-summary-message-number))
       (message "No message.")
-    (setq command (read-string "Shell command on message: "
-                              wl-summary-shell-command-last))
+    (setq command (wl-read-shell-command "Shell command on message: "
+                                        wl-summary-shell-command-last))
     (if (y-or-n-p "Send this message to pipe? ")
        (wl-summary-pipe-message-subr prefix command))))
 
@@ -4802,8 +4829,9 @@ If ARG is numeric number, decode message as following:
   (interactive (list current-prefix-arg nil))
   (if (null wl-summary-buffer-target-mark-list)
       (message "No marked message.")
-    (setq command (read-string "Shell command on each marked message: "
-                              wl-summary-shell-command-last))
+    (setq command (wl-read-shell-command
+                  "Shell command on each marked message: "
+                  wl-summary-shell-command-last))
     (when (y-or-n-p "Send each marked message to pipe? ")
       (while (car wl-summary-buffer-target-mark-list)
        (let ((num (car wl-summary-buffer-target-mark-list)))
@@ -4858,15 +4886,14 @@ If ARG is numeric number, decode message as following:
                              wl-summary-buffer-elmo-folder
                              (wl-summary-message-number))))
                   (wl-ps-subject
-                   (and entity
-                        (or (elmo-message-entity-field entity 'subject t)
-                            "")))
+                   (or (elmo-message-entity-field entity 'subject 'string)
+                       ""))
                   (wl-ps-from
-                   (and entity
-                        (or (elmo-message-entity-field entity 'from t) "")))
+                   (or (elmo-message-entity-field entity 'from 'string)
+                       ""))
                   (wl-ps-date
-                   (and entity
-                        (or (elmo-message-entity-field entity 'date) ""))))
+                   (or (elmo-message-entity-field entity 'date 'string)
+                       "")))
              (run-hooks 'wl-ps-preprint-hook)
              (set-buffer wl-message-buffer)
              (copy-to-buffer buffer (point-min) (point-max))
@@ -4978,57 +5005,69 @@ If ARG is numeric number, decode message as following:
                  (as-binary-output-file
                   (write-region (point-min) (point-max)
                                 filename nil 'no-msg))))
-           (save-excursion
-             (set-buffer summary-buf)
+           (with-current-buffer summary-buf
              (wl-summary-delete-all-target-marks))
            (if (file-exists-p filename)
                (message "Saved as %s" filename)))
        (kill-buffer tmp-buf)))))
 
-;; Someday
-;; (defun wl-summary-drop-unsync ()
-;;   "Drop all unsync messages."
-;;   (interactive)
-;;   (if (elmo-folder-pipe-p (wl-summary-buffer-folder-name))
-;;       (error "You cannot drop unsync messages in this folder"))
-;;   (if (or (not (interactive-p))
-;;       (y-or-n-p "Drop all unsync messages? "))
-;;       (let* ((folder-list (elmo-folder-get-primitive-folder-list
-;;                        (wl-summary-buffer-folder-name)))
-;;          (is-multi (elmo-multi-p (wl-summary-buffer-folder-name)))
-;;          (sum 0)
-;;          (multi-num 0)
-;;          pair)
-;;     (message "Dropping...")
-;;     (while folder-list
-;;       (setq pair (elmo-folder-message-numbers (car folder-list)))
-;;       (when is-multi ;; dirty hack...
-;;         (incf multi-num)
-;;         (setcar pair (+ (* multi-num elmo-multi-divide-number)
-;;                         (car pair))))
-;;       (elmo-msgdb-set-number-alist
-;;        (wl-summary-buffer-msgdb)
-;;        (nconc
-;;         (elmo-msgdb-get-number-alist (wl-summary-buffer-msgdb))
-;;         (list (cons (car pair) nil))))
-;;       (setq sum (+ sum (cdr pair)))
-;;       (setq folder-list (cdr folder-list)))
-;;     (wl-summary-set-message-modified)
-;;     (wl-folder-set-folder-updated (wl-summary-buffer-folder-name)
-;;                                   (list 0
-;;                                         (+ wl-summary-buffer-unread-count
-;;                                            wl-summary-buffer-new-count)
-;;                                         sum))
-;;     (message "Dropping...done"))))
+;;; Someday
+;;;(defun wl-summary-drop-unsync ()
+;;;  "Drop all unsync messages."
+;;;  (interactive)
+;;;  (if (elmo-folder-pipe-p (wl-summary-buffer-folder-name))
+;;;      (error "You cannot drop unsync messages in this folder"))
+;;;  (if (or (not (interactive-p))
+;;;      (y-or-n-p "Drop all unsync messages? "))
+;;;      (let* ((folder-list (elmo-folder-get-primitive-folder-list
+;;;                       (wl-summary-buffer-folder-name)))
+;;;         (is-multi (elmo-multi-p (wl-summary-buffer-folder-name)))
+;;;         (sum 0)
+;;;         (multi-num 0)
+;;;         pair)
+;;;    (message "Dropping...")
+;;;    (while folder-list
+;;;      (setq pair (elmo-folder-message-numbers (car folder-list)))
+;;;      (when is-multi ;; dirty hack...
+;;;        (incf multi-num)
+;;;        (setcar pair (+ (* multi-num elmo-multi-divide-number)
+;;;                        (car pair))))
+;;;      (elmo-msgdb-set-number-alist
+;;;       (wl-summary-buffer-msgdb)
+;;;       (nconc
+;;;        (elmo-msgdb-get-number-alist (wl-summary-buffer-msgdb))
+;;;        (list (cons (car pair) nil))))
+;;;      (setq sum (+ sum (cdr pair)))
+;;;      (setq folder-list (cdr folder-list)))
+;;;    (wl-summary-set-message-modified)
+;;;    (wl-folder-set-folder-updated (wl-summary-buffer-folder-name)
+;;;                                  (list 0
+;;;                                        (+ wl-summary-buffer-unread-count
+;;;                                           wl-summary-buffer-new-count)
+;;;                                        sum))
+;;;    (message "Dropping...done"))))
+
+(defun wl-summary-previous-message-number (msg)
+  "Return a message number previous to the message specified by MSG."
+  (let ((list wl-summary-buffer-number-list)
+       previous)
+    (while (and list (not (eq msg (car list))))
+      (setq previous (car list))
+      (setq list (cdr list)))
+    previous))
+
+(defun wl-summary-next-message-number (msg)
+  "Return a message number next to the message specified by MSG."
+  (cadr (memq msg wl-summary-buffer-number-list)))
 
 (defun wl-summary-default-get-next-msg (msg)
   (or (wl-summary-next-message msg
                               (if wl-summary-move-direction-downward 'down
                                 'up)
                               nil)
-      (cadr (memq msg (if wl-summary-move-direction-downward
-                         wl-summary-buffer-number-list
-                       (reverse wl-summary-buffer-number-list))))))
+      (if wl-summary-move-direction-downward
+         (wl-summary-next-message-number msg)
+       (wl-summary-previous-message-number msg))))
 
 (defun wl-summary-save-current-message ()
   "Save current message for `wl-summary-yank-saved-message'."
@@ -5064,6 +5103,13 @@ If ARG is numeric number, decode message as following:
          (wl-message-header-narrowing-toggle)
          (and wpos (set-window-start mwin wpos)))))))
 
+(defun wl-summary-toggle-mime-buttons ()
+  "Toggle visibility of mime buttons."
+  (interactive)
+  (customize-set-value 'mime-view-buttons-visible (not mime-view-buttons-visible))
+  (wl-message-buffer-cache-clean-up)
+  (wl-summary-redisplay))
+
 (require 'product)
 (product-provide (provide 'wl-summary) (require 'wl-version))