* wl-vars.el (wl-summary-default-view-alist): Fix docstring
[elisp/wanderlust.git] / wl / wl-summary.el
index 94878cb..ba42408 100644 (file)
     subject-string))
 
 (defun wl-summary-default-from (from)
     subject-string))
 
 (defun wl-summary-default-from (from)
+  "Instance of `wl-summary-from-function'.
+Ordinarily returns the sender name. Returns recipient names if (1)
+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 (retval tos ng)
     (unless
        (and (eq major-mode 'wl-summary-mode)
   (define-key wl-summary-mode-map "g"    'wl-summary-goto-folder)
   (define-key wl-summary-mode-map "G"    'wl-summary-goto-folder-sticky)
   (define-key wl-summary-mode-map "c"    'wl-summary-mark-as-read-all)
   (define-key wl-summary-mode-map "g"    'wl-summary-goto-folder)
   (define-key wl-summary-mode-map "G"    'wl-summary-goto-folder-sticky)
   (define-key wl-summary-mode-map "c"    'wl-summary-mark-as-read-all)
-;  (define-key wl-summary-mode-map "D"    'wl-summary-drop-unsync)
 
   (define-key wl-summary-mode-map "a"    'wl-summary-reply)
   (define-key wl-summary-mode-map "A"    'wl-summary-reply-with-citation)
 
   (define-key wl-summary-mode-map "a"    'wl-summary-reply)
   (define-key wl-summary-mode-map "A"    'wl-summary-reply-with-citation)
   (define-key wl-summary-mode-map "p"    'wl-summary-prev)
   (define-key wl-summary-mode-map "N"    'wl-summary-down)
   (define-key wl-summary-mode-map "P"    'wl-summary-up)
   (define-key wl-summary-mode-map "p"    'wl-summary-prev)
   (define-key wl-summary-mode-map "N"    'wl-summary-down)
   (define-key wl-summary-mode-map "P"    'wl-summary-up)
-;;;(define-key wl-summary-mode-map "w"    'wl-draft)
   (define-key wl-summary-mode-map "w"    'wl-summary-write)
   (define-key wl-summary-mode-map "W"    'wl-summary-write-current-folder)
   (define-key wl-summary-mode-map "w"    'wl-summary-write)
   (define-key wl-summary-mode-map "W"    'wl-summary-write-current-folder)
-;;;(define-key wl-summary-mode-map "e"     'wl-draft-open-file)
   (define-key wl-summary-mode-map "e"     'wl-summary-save)
   (define-key wl-summary-mode-map "\C-c\C-o" 'wl-jump-to-draft-buffer)
   (define-key wl-summary-mode-map "\C-c\C-a" 'wl-addrmgr)
   (define-key wl-summary-mode-map "e"     'wl-summary-save)
   (define-key wl-summary-mode-map "\C-c\C-o" 'wl-jump-to-draft-buffer)
   (define-key wl-summary-mode-map "\C-c\C-a" 'wl-addrmgr)
   (define-key wl-summary-mode-map "d"    'wl-summary-delete)
   (define-key wl-summary-mode-map "u"    'wl-summary-unmark)
   (define-key wl-summary-mode-map "U"    'wl-summary-unmark-all)
   (define-key wl-summary-mode-map "d"    'wl-summary-delete)
   (define-key wl-summary-mode-map "u"    'wl-summary-unmark)
   (define-key wl-summary-mode-map "U"    'wl-summary-unmark-all)
+  (define-key wl-summary-mode-map "D"    'wl-summary-erase)
 
   ;; thread commands
   (define-key wl-summary-mode-map "t"  (make-sparse-keymap))
 
   ;; thread commands
   (define-key wl-summary-mode-map "t"  (make-sparse-keymap))
   (define-key wl-summary-mode-map "m?"   'wl-summary-target-mark-pick)
   (define-key wl-summary-mode-map "m#"   'wl-summary-target-mark-print)
   (define-key wl-summary-mode-map "m|"   'wl-summary-target-mark-pipe)
   (define-key wl-summary-mode-map "m?"   'wl-summary-target-mark-pick)
   (define-key wl-summary-mode-map "m#"   'wl-summary-target-mark-print)
   (define-key wl-summary-mode-map "m|"   'wl-summary-target-mark-pipe)
+  (define-key wl-summary-mode-map "mD"   'wl-summary-target-mark-erase)
 
   ;; region commands
   (define-key wl-summary-mode-map "r"    (make-sparse-keymap))
 
   ;; region commands
   (define-key wl-summary-mode-map "r"    (make-sparse-keymap))
@@ -605,16 +610,15 @@ If optional USE-CACHE is non-nil, use cache if exists."
   "Re-edit current message.
 If ARG is non-nil, Supersedes message"
   (interactive "P")
   "Re-edit current message.
 If ARG is non-nil, Supersedes message"
   (interactive "P")
+  (wl-summary-toggle-disp-msg 'off)
   (if arg
       (wl-summary-supersedes-message)
     (if (string= (wl-summary-buffer-folder-name) wl-draft-folder)
   (if arg
       (wl-summary-supersedes-message)
     (if (string= (wl-summary-buffer-folder-name) wl-draft-folder)
-       (if (wl-summary-message-number)
-           (progn
-             (wl-draft-reedit (wl-summary-message-number))
-             (if (wl-message-news-p)
-                 (mail-position-on-field "Newsgroups")
-               (mail-position-on-field "To"))
-             (delete-other-windows)))
+       (when (wl-summary-message-number)
+         (wl-draft-reedit (wl-summary-message-number))
+         (if (wl-message-news-p)
+             (mail-position-on-field "Newsgroups")
+           (mail-position-on-field "To")))
       (wl-draft-edit-string (wl-summary-message-string)))))
 
 (defun wl-summary-resend-bounced-mail ()
       (wl-draft-edit-string (wl-summary-message-string)))))
 
 (defun wl-summary-resend-bounced-mail ()
@@ -623,6 +627,7 @@ This only makes sense if the current message is a bounce message which
 contains some mail you have written but has been bounced back to
 you."
   (interactive)
 contains some mail you have written but has been bounced back to
 you."
   (interactive)
+  (wl-summary-toggle-disp-msg 'off)
   (save-excursion
     (wl-summary-set-message-buffer-or-redisplay)
     (set-buffer (wl-message-get-original-buffer))
   (save-excursion
     (wl-summary-set-message-buffer-or-redisplay)
     (set-buffer (wl-message-get-original-buffer))
@@ -864,7 +869,7 @@ 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."
 
 (defun wl-summary-get-list-info (entity)
   "Returns (\"ML-name\" . ML-count) of ENTITY."
-  (let (sequence ml-name ml-count subject return-path)
+  (let (sequence ml-name ml-count subject return-path delivered-to mailing-list)
     (setq sequence (elmo-msgdb-overview-entity-get-extra-field
                    entity "x-sequence")
          ml-name (or (elmo-msgdb-overview-entity-get-extra-field
     (setq sequence (elmo-msgdb-overview-entity-get-extra-field
                    entity "x-sequence")
          ml-name (or (elmo-msgdb-overview-entity-get-extra-field
@@ -891,6 +896,16 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
         (progn
           (or ml-name (setq ml-name (match-string 1 return-path)))
           (or ml-count (setq ml-count (match-string 2 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-msgdb-overview-entity-get-extra-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-msgdb-overview-entity-get-extra-field
+               entity "mailing-list"))
+        (string-match "\\(^\\|; \\)contact \\([^@]+\\)-[^-@]+@" mailing-list)  ; *-help@, *-owner@, etc.
+        (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)))))
 
     (cons (and ml-name (car (split-string ml-name " ")))
          (and ml-count (string-to-int ml-count)))))
 
@@ -898,12 +913,13 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
   "Compare entity X and Y by mailing-list info."
   (let* ((list-info-x (wl-summary-get-list-info x))
         (list-info-y (wl-summary-get-list-info y)))
   "Compare entity X and Y by mailing-list info."
   (let* ((list-info-x (wl-summary-get-list-info x))
         (list-info-y (wl-summary-get-list-info y)))
-    (if (equal list-info-x list-info-y)
-       (wl-summary-overview-entity-compare-by-date x y)
-      (if (string= (car list-info-x) (car list-info-y))
+    (if (equal (car list-info-x) (car list-info-y))
+       (if (equal (cdr list-info-x) (cdr list-info-y))
+           (wl-summary-overview-entity-compare-by-date x y)
          (< (or (cdr list-info-x) 0)
          (< (or (cdr list-info-x) 0)
-            (or (cdr list-info-y) 0))
-       (string< (car list-info-x) (car list-info-y))))))
+            (or (cdr list-info-y) 0)))
+      (string< (or (car list-info-x) "")
+              (or (car list-info-y) "")))))
 
 (defun wl-summary-sort-by-date ()
   (interactive)
 
 (defun wl-summary-sort-by-date ()
   (interactive)
@@ -1067,7 +1083,8 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
   (if (or wl-summary-buffer-refile-list
          wl-summary-buffer-copy-list
          wl-summary-buffer-delete-list)
   (if (or wl-summary-buffer-refile-list
          wl-summary-buffer-copy-list
          wl-summary-buffer-delete-list)
-      (if (y-or-n-p "Marks remain to be executed.  Execute them? ")
+      (if (y-or-n-p (format "Execute remaining marks in %s? "
+                           (wl-summary-buffer-folder-name)))
          (progn
            (wl-summary-exec)
            (if (or wl-summary-buffer-refile-list
          (progn
            (wl-summary-exec)
            (if (or wl-summary-buffer-refile-list
@@ -1106,7 +1123,7 @@ Entering Folder mode calls the value of `wl-summary-mode-hook'."
   (elmo-folder-commit wl-summary-buffer-elmo-folder)
   (elmo-folder-check wl-summary-buffer-elmo-folder)
   (if wl-use-scoring (wl-score-save))
   (elmo-folder-commit wl-summary-buffer-elmo-folder)
   (elmo-folder-check wl-summary-buffer-elmo-folder)
   (if wl-use-scoring (wl-score-save))
-  (if (interactive-p) (message "Saving summary status...done.")))
+  (if (interactive-p) (message "Saving summary status...done")))
 
 (defun wl-summary-force-exit ()
   "Exit current summary.  Buffer is deleted even the buffer is sticky."
 
 (defun wl-summary-force-exit ()
   "Exit current summary.  Buffer is deleted even the buffer is sticky."
@@ -2455,7 +2472,11 @@ If ARG, without confirm."
                  (if (file-exists-p view)
                      (setq wl-summary-buffer-view
                            (wl-summary-load-file-object view))
                  (if (file-exists-p view)
                      (setq wl-summary-buffer-view
                            (wl-summary-load-file-object view))
-                   (setq wl-summary-buffer-view wl-summary-default-view))
+                   (setq wl-summary-buffer-view
+                         (or (wl-get-assoc-list-value
+                              wl-summary-default-view-alist
+                              (elmo-folder-name-internal folder))
+                             wl-summary-default-view)))
                  (wl-thread-resume-entity folder)
                  (wl-summary-open-folder folder))
              (setq wl-summary-buffer-view
                  (wl-thread-resume-entity folder)
                  (wl-summary-open-folder folder))
              (setq wl-summary-buffer-view
@@ -2641,7 +2662,6 @@ If ARG, without confirm."
                        wl-summary-alike-hashtb)))
 
 (defun wl-summary-insert-headers (overview func mime-decode)
                        wl-summary-alike-hashtb)))
 
 (defun wl-summary-insert-headers (overview func mime-decode)
-  (message "Creating subject cache...")
   (let (ov this last alike)
     (buffer-disable-undo (current-buffer))
     (make-local-variable 'wl-summary-alike-hashtb)
   (let (ov this last alike)
     (buffer-disable-undo (current-buffer))
     (make-local-variable 'wl-summary-alike-hashtb)
@@ -2652,7 +2672,7 @@ If ARG, without confirm."
       (setq this (funcall func ov))
       (and this (setq this (std11-unfold-string this)))
       (if (equal last this)
       (setq this (funcall func ov))
       (and this (setq this (std11-unfold-string this)))
       (if (equal last this)
-         (wl-append alike (list ov))
+         (setq alike (cons ov alike))
        (when last
          (wl-summary-put-alike alike)
          (insert last ?\n))
        (when last
          (wl-summary-put-alike alike)
          (insert last ?\n))
@@ -2666,54 +2686,59 @@ If ARG, without confirm."
                                  elmo-mime-charset)
       (when (eq mime-decode 'mime)
        (eword-decode-region (point-min) (point-max))))
                                  elmo-mime-charset)
       (when (eq mime-decode 'mime)
        (eword-decode-region (point-min) (point-max))))
-    (message "Creating subject cache...done")
     (run-hooks 'wl-summary-insert-headers-hook)))
 
 (defun wl-summary-search-by-subject (entity overview)
   (let ((summary-buf (current-buffer))
        (buf (get-buffer-create wl-summary-search-buf-name))
        (folder-name (wl-summary-buffer-folder-name))
     (run-hooks 'wl-summary-insert-headers-hook)))
 
 (defun wl-summary-search-by-subject (entity overview)
   (let ((summary-buf (current-buffer))
        (buf (get-buffer-create wl-summary-search-buf-name))
        (folder-name (wl-summary-buffer-folder-name))
-       match founds found-entity)
+       match founds cur result)
     (with-current-buffer buf
       (let ((case-fold-search t))
        (when (or (not (string= wl-summary-search-buf-folder-name folder-name))
                  (zerop (buffer-size)))
          (setq wl-summary-search-buf-folder-name folder-name)
     (with-current-buffer buf
       (let ((case-fold-search t))
        (when (or (not (string= wl-summary-search-buf-folder-name folder-name))
                  (zerop (buffer-size)))
          (setq wl-summary-search-buf-folder-name folder-name)
+         (message "Creating subject cache...")
          (wl-summary-insert-headers
           overview
           (function
            (lambda (x)
              (funcall wl-summary-subject-filter-function
          (wl-summary-insert-headers
           overview
           (function
            (lambda (x)
              (funcall wl-summary-subject-filter-function
-              (elmo-msgdb-overview-entity-get-subject-no-decode x))))
-          t))
+                      (elmo-msgdb-overview-entity-get-subject-no-decode x))))
+          t)
+         (message "Creating subject cache...done"))
        (setq match (funcall wl-summary-subject-filter-function
                             (elmo-msgdb-overview-entity-get-subject entity)))
        (if (string= match "")
            (setq match "\n"))
        (setq match (funcall wl-summary-subject-filter-function
                             (elmo-msgdb-overview-entity-get-subject entity)))
        (if (string= match "")
            (setq match "\n"))
-       (goto-char (point-min))
-       (while (and (not founds)
-                   (not (= (point) (point-max)))
-                   (search-forward match nil t))
+       (goto-char (point-max))
+       (while (and (null result)
+                   (not (= (point) (point-min)))
+                   (search-backward match nil t))
          ;; check exactly match
          ;; check exactly match
-         (when (and (eolp)
-                    (= (point-at-bol)
-                       (match-beginning 0)))
-           (setq found-entity (wl-summary-get-alike))
-           (if (and found-entity
-                    ;; Is founded entity myself or children?
-                    (not (string=
-                          (elmo-msgdb-overview-entity-get-id entity)
-                          (elmo-msgdb-overview-entity-get-id
-                           (car found-entity))))
-                    (with-current-buffer summary-buf
+         (when (and (bolp) (= (point-at-eol)(match-end 0)))
+           (setq founds (wl-summary-get-alike))
+           (with-current-buffer summary-buf
+             (while founds
+               (when (and
+                      ;; the first element of found-entity list exists on
+                      ;; thread tree.
+                      (wl-thread-get-entity
+                       (elmo-msgdb-overview-entity-get-number
+                        (car founds)))
+                      ;; message id is not same as myself.
+                      (not (string=
+                            (elmo-msgdb-overview-entity-get-id entity)
+                            (elmo-msgdb-overview-entity-get-id (car founds))))
+                      ;; not a descendant.
                       (not (wl-thread-descendant-p
                             (elmo-msgdb-overview-entity-get-number entity)
                             (elmo-msgdb-overview-entity-get-number
                       (not (wl-thread-descendant-p
                             (elmo-msgdb-overview-entity-get-number entity)
                             (elmo-msgdb-overview-entity-get-number
-                             (car found-entity))))))
-               ;; return matching entity
-               (setq founds found-entity))))
-       (if founds
-           (car founds))))))
+                             (car founds)))))
+                 (setq result (car founds)
+                       founds nil))
+               (setq founds (cdr founds))))))
+       result))))
 
 (defun wl-summary-insert-thread-entity (entity msgdb update
                                               &optional force-insert)
 
 (defun wl-summary-insert-thread-entity (entity msgdb update
                                               &optional force-insert)
@@ -2722,6 +2747,7 @@ If ARG, without confirm."
         parent-entity
         parent-number
         (case-fold-search t)
         parent-entity
         parent-number
         (case-fold-search t)
+        (depth 0) relatives anumber
         cur number overview2 cur-entity linked retval delayed-entity
         update-list entity-stack)
     (while entity
         cur number overview2 cur-entity linked retval delayed-entity
         update-list entity-stack)
     (while entity
@@ -2731,14 +2757,18 @@ If ARG, without confirm."
            parent-number (elmo-msgdb-overview-entity-get-number
                           parent-entity))
       (setq number (elmo-msgdb-overview-entity-get-number entity))
            parent-number (elmo-msgdb-overview-entity-get-number
                           parent-entity))
       (setq number (elmo-msgdb-overview-entity-get-number entity))
-      ;; If thread loop detected, set parent as nil.
       (setq cur entity)
       (setq cur entity)
+      ;; If thread loop detected, set parent as nil.
       (while cur
       (while cur
-       (if (eq number (elmo-msgdb-overview-entity-get-number
-                       (setq cur
-                             (elmo-msgdb-get-parent-entity cur msgdb))))
+       (setq anumber
+             (elmo-msgdb-overview-entity-get-number
+              (setq cur (elmo-msgdb-get-parent-entity cur msgdb))))
+       (if (memq anumber relatives)
            (setq parent-number nil
            (setq parent-number nil
-                 cur nil)))
+                 cur nil))
+       (setq relatives (cons
+                        (elmo-msgdb-overview-entity-get-number cur)
+                        relatives)))
       (if (and parent-number
               (not (wl-thread-get-entity parent-number))
               (not force-insert))
       (if (and parent-number
               (not (wl-thread-get-entity parent-number))
               (not force-insert))
@@ -2792,26 +2822,29 @@ If ARG, without confirm."
         (overview-entity entity)
         (parent-id (elmo-msgdb-overview-entity-get-id parent-entity))
         (number (elmo-msgdb-overview-entity-get-number entity))
         (overview-entity entity)
         (parent-id (elmo-msgdb-overview-entity-get-id parent-entity))
         (number (elmo-msgdb-overview-entity-get-number entity))
-        (parent-number (elmo-msgdb-overview-entity-get-number parent-entity)))
+        (parent-number (elmo-msgdb-overview-entity-get-number parent-entity))
+        insert-line)
     (cond
      ((or (not parent-id)
          (string= this-id parent-id))
       (goto-char (point-max))
     (cond
      ((or (not parent-id)
          (string= this-id parent-id))
       (goto-char (point-max))
-      (beginning-of-line))
+      (beginning-of-line)
+      (setq insert-line t))
      ;; parent already exists in buffer.
      ((wl-summary-jump-to-msg parent-number)
      ;; parent already exists in buffer.
      ((wl-summary-jump-to-msg parent-number)
-      (wl-thread-goto-bottom-of-sub-thread)))
-    (let ((inhibit-read-only t)
-         (buffer-read-only nil))
-      (wl-summary-insert-line
-       (wl-summary-create-line
-       entity
-       parent-entity
-       nil
-       (elmo-msgdb-get-mark (wl-summary-buffer-msgdb) number)
-       (wl-thread-maybe-get-children-num number)
-       (wl-thread-make-indent-string thr-entity)
-       (wl-thread-entity-get-linked thr-entity))))))
+      (wl-thread-goto-bottom-of-sub-thread)
+      (setq insert-line t)))
+    (when insert-line
+      (let (buffer-read-only)
+       (wl-summary-insert-line
+        (wl-summary-create-line
+         entity
+         parent-entity
+         nil
+         (elmo-msgdb-get-mark (wl-summary-buffer-msgdb) number)
+         (wl-thread-maybe-get-children-num number)
+         (wl-thread-make-indent-string thr-entity)
+         (wl-thread-entity-get-linked thr-entity)))))))
 
 (defun wl-summary-mark-as-unread (&optional number
                                            no-server-update
 
 (defun wl-summary-mark-as-unread (&optional number
                                            no-server-update
@@ -2967,7 +3000,8 @@ If optional argument NUMBER is specified, mark message specified by NUMBER."
          (while (not (eobp))
            (when (string= (wl-summary-temp-mark) mark)
              (setq msglist (cons (wl-summary-message-number) msglist)))
          (while (not (eobp))
            (when (string= (wl-summary-temp-mark) mark)
              (setq msglist (cons (wl-summary-message-number) msglist)))
-           (forward-line 1)))))))
+           (forward-line 1))
+         (nreverse msglist))))))
 
 (defun wl-summary-exec ()
   (interactive)
 
 (defun wl-summary-exec ()
   (interactive)
@@ -2977,7 +3011,7 @@ If optional argument NUMBER is specified, mark message specified by NUMBER."
 
 (defun wl-summary-exec-region (beg end)
   (interactive "r")
 
 (defun wl-summary-exec-region (beg end)
   (interactive "r")
-  (message "Collecting marks ...")
+  (message "Collecting marks...")
   (save-excursion
     (goto-char beg)
     (beginning-of-line)
   (save-excursion
     (goto-char beg)
     (beginning-of-line)
@@ -3006,7 +3040,7 @@ If optional argument NUMBER is specified, mark message specified by NUMBER."
            refile-len
            dst-msgs                    ; loop counter
            result)
            refile-len
            dst-msgs                    ; loop counter
            result)
-       (message "Executing ...")
+       (message "Executing...")
        (while dels
          (when (not (assq (car dels) wl-summary-buffer-refile-list))
            (wl-append wl-summary-buffer-refile-list
        (while dels
          (when (not (assq (car dels) wl-summary-buffer-refile-list))
            (wl-append wl-summary-buffer-refile-list
@@ -3097,7 +3131,7 @@ If optional argument NUMBER is specified, mark message specified by NUMBER."
                           wl-message-buffer-cur-number)))
          (wl-summary-toggle-disp-msg 'off))
        (set-buffer-modified-p nil)
                           wl-message-buffer-cur-number)))
          (wl-summary-toggle-disp-msg 'off))
        (set-buffer-modified-p nil)
-       (message (concat "Executing ... done"
+       (message (concat "Executing...done"
                         (if (> refile-failures 0)
                             (format " (%d refiling failed)" refile-failures)
                           "")
                         (if (> refile-failures 0)
                             (format " (%d refiling failed)" refile-failures)
                           "")
@@ -3106,6 +3140,45 @@ If optional argument NUMBER is specified, mark message specified by NUMBER."
                           "")
                         "."))))))
 
                           "")
                         "."))))))
 
+(defun wl-summary-erase (&optional number)
+  "Erase message actually, without moving it to trash."
+  (interactive)
+  (if (elmo-folder-writable-p wl-summary-buffer-elmo-folder)
+      (let* ((buffer-num (wl-summary-message-number))
+            (msg-num (or number buffer-num)))
+       (if (null msg-num)
+           (message "No message.")
+         (let* ((msgdb (wl-summary-buffer-msgdb))
+                (entity (elmo-msgdb-overview-get-entity msg-num msgdb))
+                (subject (elmo-delete-char
+                          ?\n (or (elmo-msgdb-overview-entity-get-subject
+                                   entity)
+                                  wl-summary-no-subject-message))))
+           (when (yes-or-no-p
+                  (format "Erase \"%s\" without moving it to trash? "
+                          (truncate-string subject 30)))
+             (wl-summary-unmark msg-num)
+             (elmo-folder-delete-messages wl-summary-buffer-elmo-folder
+                                          (list msg-num))
+             (wl-summary-delete-messages-on-buffer (list msg-num))
+             (save-excursion (wl-summary-sync nil "update"))))))
+    (message "Read-only folder.")))
+
+(defun wl-summary-target-mark-erase ()
+  (interactive)
+  (if (elmo-folder-writable-p wl-summary-buffer-elmo-folder)
+      (if (null wl-summary-buffer-target-mark-list)
+         (message "No marked message.")
+       (when (yes-or-no-p
+              "Erase all marked messages without moving them to trash? ")
+         (elmo-folder-delete-messages wl-summary-buffer-elmo-folder
+                                      wl-summary-buffer-target-mark-list)
+         (wl-summary-delete-messages-on-buffer
+          wl-summary-buffer-target-mark-list)
+         (setq wl-summary-buffer-target-mark-list nil)
+         (save-excursion (wl-summary-sync nil "update"))))
+    (message "Read-only folder.")))
+
 (defun wl-summary-read-folder (default &optional purpose ignore-error
                                no-create init)
   (let ((fld (completing-read
 (defun wl-summary-read-folder (default &optional purpose ignore-error
                                no-create init)
   (let ((fld (completing-read
@@ -3114,14 +3187,7 @@ If optional argument NUMBER is specified, mark message specified by NUMBER."
              (or wl-folder-completion-function
                  (if (memq 'read-folder wl-use-folder-petname)
                      (wl-folder-get-entity-with-petname)
              (or wl-folder-completion-function
                  (if (memq 'read-folder wl-use-folder-petname)
                      (wl-folder-get-entity-with-petname)
-                   (let (alist)
-                     (mapatoms 
-                      (lambda (atom)
-                        (setq alist
-                              (cons (list (elmo-string
-                                           (symbol-name atom))) alist)))
-                      wl-folder-entity-hashtb)
-                     alist)))
+                   wl-folder-entity-hashtb))
              nil nil (or init wl-default-spec)
              'wl-read-folder-hist)))
     (if (or (string= fld wl-default-spec)
              nil nil (or init wl-default-spec)
              'wl-read-folder-hist)))
     (if (or (string= fld wl-default-spec)
@@ -3161,7 +3227,8 @@ If optional argument NUMBER is specified, mark message specified by NUMBER."
        (setq c (+ c (char-width (following-char)))))
       (and (> c len) (setq folder (concat " " folder)))
       (setq rs (point))
        (setq c (+ c (char-width (following-char)))))
       (and (> c len) (setq folder (concat " " folder)))
       (setq rs (point))
-      (put-text-property rs re 'invisible t)
+      (when wl-summary-width
+         (put-text-property rs re 'invisible t))
       (put-text-property rs re 'wl-summary-destination t)
       (goto-char re)
       (wl-highlight-refile-destination-string folder)
       (put-text-property rs re 'wl-summary-destination t)
       (goto-char re)
       (wl-highlight-refile-destination-string folder)
@@ -3744,7 +3811,7 @@ If ARG, exit virtual folder."
          (setq skipped (cons (car mlist) skipped)))
        (setq mlist (cdr mlist)))
       (setq wl-summary-buffer-target-mark-list skipped)
          (setq skipped (cons (car mlist) skipped)))
        (setq mlist (cdr mlist)))
       (setq wl-summary-buffer-target-mark-list skipped)
-      (message "Prefetching... %d/%d message(s)." count length)
+      (message "Prefetching... %d/%d message(s)" count length)
       (set-buffer-modified-p nil))))
 
 (defun wl-summary-target-mark-refile-subr (copy-or-refile)
       (set-buffer-modified-p nil))))
 
 (defun wl-summary-target-mark-refile-subr (copy-or-refile)
@@ -4135,7 +4202,6 @@ If ARG, exit virtual folder."
         (t (format "%dB" size)))
       "")))
 
         (t (format "%dB" size)))
       "")))
 
-(defvar wl-summary-line-subject-minimum-length nil)
 (defun wl-summary-line-subject ()
   (let (no-parent subject parent-raw-subject parent-subject)
     (if (string= wl-thr-indent-string "")
 (defun wl-summary-line-subject ()
   (let (no-parent subject parent-raw-subject parent-subject)
     (if (string= wl-thr-indent-string "")
@@ -4150,24 +4216,12 @@ If ARG, exit virtual folder."
     (setq parent-subject
          (if parent-raw-subject
              (elmo-delete-char ?\n parent-raw-subject)))
     (setq parent-subject
          (if parent-raw-subject
              (elmo-delete-char ?\n parent-raw-subject)))
-    (setq subject
-         (if (or no-parent
-                 (null parent-subject)
-                 (not (wl-summary-subject-equal
-                       subject parent-subject)))
-             (funcall wl-summary-subject-function subject)
-           ""))
-    (when (and wl-summary-line-subject-minimum-length
-              (< (string-width subject)
-                 wl-summary-line-subject-minimum-length))
-      (while (< (string-width subject)
-               wl-summary-line-subject-minimum-length)
-       (setq subject (concat subject " "))))
-    (if (and (not wl-summary-width)
-            wl-summary-subject-length-limit)
-       (truncate-string subject
-                        wl-summary-subject-length-limit)
-      subject)))
+    (if (or no-parent
+           (null parent-subject)
+           (not (wl-summary-subject-equal
+                 subject parent-subject)))
+       (funcall wl-summary-subject-function subject)
+      "")))
 
 (defun wl-summary-line-from ()
   (elmo-delete-char ?\n
 
 (defun wl-summary-line-from ()
   (elmo-delete-char ?\n
@@ -4177,8 +4231,9 @@ If ARG, exit virtual folder."
 
 (defun wl-summary-line-list-info ()
   (let ((list-info (wl-summary-get-list-info wl-message-entity)))
 
 (defun wl-summary-line-list-info ()
   (let ((list-info (wl-summary-get-list-info wl-message-entity)))
-    (if (and (car list-info) (cdr list-info))
-       (format "(%s %05d)" (car list-info) (cdr list-info))
+    (if (car list-info)
+       (format (if (cdr list-info) "(%s %05.0f)" "(%s)")
+               (car list-info) (cdr list-info))
       "")))
 
 (defun wl-summary-line-list-count ()
       "")))
 
 (defun wl-summary-line-list-count ()
@@ -4189,7 +4244,8 @@ If ARG, exit virtual folder."
 
 (defun wl-summary-line-attached ()
   (let ((content-type (elmo-msgdb-overview-entity-get-extra-field
 
 (defun wl-summary-line-attached ()
   (let ((content-type (elmo-msgdb-overview-entity-get-extra-field
-                      wl-message-entity "content-type")))
+                      wl-message-entity "content-type"))
+       (case-fold-search t))
     (if (and content-type
             (string-match "multipart/mixed" content-type))
        "@"
     (if (and content-type
             (string-match "multipart/mixed" content-type))
        "@"
@@ -4364,7 +4420,8 @@ If ARG, exit virtual folder."
                (wl-summary-delete-all-temp-marks)
                (encode-coding-region
                 (point-min) (point-max)
                (wl-summary-delete-all-temp-marks)
                (encode-coding-region
                 (point-min) (point-max)
-                (or (mime-charset-to-coding-system charset 'LF)
+                (or (and wl-on-mule ; one in mcs-ltn1(apel<10.4) cannot take 2 arg.
+                         (mime-charset-to-coding-system charset 'LF))
                     ;; Mule 2 doesn't have `*ctext*unix'.
                     (mime-charset-to-coding-system charset)))
                (write-region-as-binary (point-min)(point-max)
                     ;; Mule 2 doesn't have `*ctext*unix'.
                     (mime-charset-to-coding-system charset)))
                (write-region-as-binary (point-min)(point-max)
@@ -4656,6 +4713,7 @@ Return t if message exists."
       (save-excursion
        (set-buffer summary-buf)
        (wl-summary-delete-all-temp-marks)))
       (save-excursion
        (set-buffer summary-buf)
        (wl-summary-delete-all-temp-marks)))
+    (wl-draft-reply-position wl-draft-reply-default-position)
     (run-hooks 'wl-mail-setup-hook)))
 
 (defun wl-summary-reply-with-citation (&optional arg)
     (run-hooks 'wl-mail-setup-hook)))
 
 (defun wl-summary-reply-with-citation (&optional arg)
@@ -4663,6 +4721,7 @@ Return t if message exists."
   (when (wl-summary-reply arg t)
     (goto-char (point-max))
     (wl-draft-yank-original)
   (when (wl-summary-reply arg t)
     (goto-char (point-max))
     (wl-draft-yank-original)
+    (wl-draft-reply-position wl-draft-reply-default-position)
     (run-hooks 'wl-mail-setup-hook)))
 
 (defun wl-summary-jump-to-msg-by-message-id (&optional id)
     (run-hooks 'wl-mail-setup-hook)))
 
 (defun wl-summary-jump-to-msg-by-message-id (&optional id)
@@ -4865,11 +4924,9 @@ Reply to author if invoked with ARG."
       (wl-message-select-buffer wl-message-buffer)
       (set-buffer mes-buf)
       (goto-char (point-min))
       (wl-message-select-buffer wl-message-buffer)
       (set-buffer mes-buf)
       (goto-char (point-min))
-      (unless wl-draft-use-frame
-       (split-window-vertically)
-       (other-window 1))
       (when (setq mes-buf (wl-message-get-original-buffer))
        (wl-draft-reply mes-buf arg summary-buf)
       (when (setq mes-buf (wl-message-get-original-buffer))
        (wl-draft-reply mes-buf arg summary-buf)
+       (wl-draft-reply-position wl-draft-reply-default-position)
        (unless without-setup-hook
          (run-hooks 'wl-mail-setup-hook)))
       t)))
        (unless without-setup-hook
          (run-hooks 'wl-mail-setup-hook)))
       t)))
@@ -4939,9 +4996,6 @@ Use function list is `wl-summary-write-current-folder-functions'."
        (wl-summary-redisplay-internal folder number))
       (setq mes-buf wl-message-buffer)
       (wl-message-select-buffer mes-buf)
        (wl-summary-redisplay-internal folder number))
       (setq mes-buf wl-message-buffer)
       (wl-message-select-buffer mes-buf)
-      (unless wl-draft-use-frame
-       (split-window-vertically)
-       (other-window 1))
       ;; get original subject.
       (if summary-buf
          (save-excursion
       ;; get original subject.
       (if summary-buf
          (save-excursion
@@ -4986,7 +5040,7 @@ Use function list is `wl-summary-write-current-folder-functions'."
       (if downward
          (forward-line 1)
        (forward-line -1))
       (if downward
          (forward-line 1)
        (forward-line -1))
-      (setq skip (or (string-match skip-tmark-regexp 
+      (setq skip (or (string-match skip-tmark-regexp
                                   (save-excursion
                                     (wl-summary-temp-mark)))
                     (and skip-pmark-regexp
                                   (save-excursion
                                     (wl-summary-temp-mark)))
                     (and skip-pmark-regexp
@@ -5005,8 +5059,12 @@ Use function list is `wl-summary-write-current-folder-functions'."
        (if wl-summary-buffer-disp-msg
            (wl-summary-redisplay))
       (if interactive
        (if wl-summary-buffer-disp-msg
            (wl-summary-redisplay))
       (if interactive
-         (if wl-summary-buffer-next-folder-function
-             (funcall wl-summary-buffer-next-folder-function)
+         (cond
+          ((and (not downward) wl-summary-buffer-prev-folder-function)
+           (funcall wl-summary-buffer-prev-folder-function))
+          ((and downward wl-summary-buffer-next-folder-function)
+           (funcall wl-summary-buffer-next-folder-function))
+          (t
            (when wl-auto-select-next
              (setq next-entity
                    (if downward
            (when wl-auto-select-next
              (setq next-entity
                    (if downward
@@ -5018,7 +5076,7 @@ Use function list is `wl-summary-write-current-folder-functions'."
             '(lambda () (wl-summary-next-folder-or-exit next-entity))
             (format
              "No more messages. Type SPC to go to %s."
             '(lambda () (wl-summary-next-folder-or-exit next-entity))
             (format
              "No more messages. Type SPC to go to %s."
-             (wl-summary-entity-info-msg next-entity finfo))))))))
+             (wl-summary-entity-info-msg next-entity finfo)))))))))
 
 (defun wl-summary-prev (&optional interactive)
   (interactive)
 
 (defun wl-summary-prev (&optional interactive)
   (interactive)
@@ -5312,6 +5370,7 @@ If ASK-CODING is non-nil, coding-system for the message is asked."
 (defun wl-summary-supersedes-message ()
   "Supersede current message."
   (interactive)
 (defun wl-summary-supersedes-message ()
   "Supersede current message."
   (interactive)
+  (wl-summary-toggle-disp-msg 'off)
   (let ((summary-buf (current-buffer))
        message-buf from)
     (wl-summary-set-message-buffer-or-redisplay)
   (let ((summary-buf (current-buffer))
        message-buf from)
     (wl-summary-set-message-buffer-or-redisplay)