* Version number is increased to 2.15.4.
[elisp/wanderlust.git] / wl / wl-folder.el
index 20a1898..1385b0c 100644 (file)
 
 (defvar wl-folder-buffer-disp-summary nil)
 (defvar wl-folder-buffer-cur-entity-id nil)
+(defvar wl-folder-buffer-last-visited-entity-id nil)
 (defvar wl-folder-buffer-cur-path nil)
 (defvar wl-folder-buffer-cur-point nil)
 
 (make-variable-buffer-local 'wl-folder-buffer-disp-summary)
 (make-variable-buffer-local 'wl-folder-buffer-cur-entity-id)
+(make-variable-buffer-local 'wl-folder-buffer-last-visited-entity-id)
 (make-variable-buffer-local 'wl-folder-buffer-cur-path)
 (make-variable-buffer-local 'wl-folder-buffer-cur-point)
 
   (define-key wl-folder-mode-map "g"    'wl-folder-goto-folder)
   (define-key wl-folder-mode-map "G"    'wl-folder-goto-folder-sticky)
   (define-key wl-folder-mode-map "j"    'wl-folder-jump-to-current-entity)
+  (define-key wl-folder-mode-map "\C-i" 'wl-folder-revisit-last-visited-folder)
   (define-key wl-folder-mode-map "w"    'wl-draft)
   (define-key wl-folder-mode-map "W"    'wl-folder-write-current-folder)
   (define-key wl-folder-mode-map "\C-c\C-o" 'wl-jump-to-draft-buffer)
   (define-key wl-folder-mode-map "?"    'wl-folder-pick)
   (define-key wl-folder-mode-map "q"    'wl-exit)
   (define-key wl-folder-mode-map "z"    'wl-folder-suspend)
+  (define-key wl-folder-mode-map "x"    'wl-execute-temp-marks)
   (define-key wl-folder-mode-map "\M-t" 'wl-toggle-plugged)
   (define-key wl-folder-mode-map "\C-t" 'wl-plugged-change)
   (define-key wl-folder-mode-map "<"    'beginning-of-buffer)
 (defmacro wl-folder-buffer-group-p ()
   (` (get-text-property (point) 'wl-folder-is-group)))
 
-(defmacro wl-folder-folder-name ()
-  (` (save-excursion
-       (beginning-of-line)
-       (if (or (looking-at "^[ ]*\\[[\\+-]\\]\\(.+\\):[-0-9\\*-]+/[0-9\\*-]+/[0-9\\*-]+\n")
-              (looking-at "^[ ]*\\([^\\[].+\\):.*\n"))
-          (wl-match-buffer 1)))))
-
-(defmacro wl-folder-entity-name ()
-  (` (save-excursion
-       (beginning-of-line)
-       (if (looking-at "^[ ]*\\([^\\[].+\\):.*\n")
-          (wl-match-buffer 1)))))
-
 (defun wl-folder-buffer-search-group (group)
   (let ((prev-point (point))
        (group-regexp (concat
 
 (defun wl-folder-buffer-search-entity (folder &optional searchname)
   (let ((search (or searchname (wl-folder-get-petname folder)))
-       case-fold-search)
-    (re-search-forward
-     (concat
-      "^[ \t]*"
-      (regexp-quote search) ":[-0-9\\*-]+/[0-9\\*-]+/[0-9\\*-]+") nil t)))
+       case-fold-search
+       result)
+    (catch 'found
+      (while (setq result
+                  (re-search-forward
+                   (concat
+                    "^[ \t]*"
+                    (regexp-quote search) ":[-0-9\\*-]+/[0-9\\*-]+/[0-9\\*-]+")
+                   nil t))
+       (when (string= (wl-folder-get-entity-from-buffer) folder)
+         (throw 'found result))))))
 
 (defsubst wl-folder-get-folder-name-by-id (entity-id &optional hashtb)
   (and (numberp entity-id)
        (and sym (boundp sym)))))
 
 (defmacro wl-folder-clear-entity-info (entity &optional hashtb)
-  (` (let ((sym (intern-soft (, entity)
-                            (or (, hashtb) wl-folder-entity-hashtb))))
-       (if (boundp sym)
-          (makunbound sym)))))
+  (` (elmo-clear-hash-val (, entity) (or (, hashtb) wl-folder-entity-hashtb))))
 
 (defmacro wl-folder-get-entity-info (entity &optional hashtb)
   (` (elmo-get-hash-val (, entity) (or (, hashtb) wl-folder-entity-hashtb))))
@@ -336,15 +330,36 @@ Default HASHTB is `wl-folder-elmo-folder-hashtb'."
   (` (elmo-set-hash-val (, name) (, folder)
                        (or (, hashtb) wl-folder-elmo-folder-hashtb))))
 
-(defmacro wl-folder-get-elmo-folder (entity &optional no-cache)
+(defun wl-draft-get-folder ()
+  "A function to obtain `opened' draft elmo folder structure."
+  (if (and wl-draft-folder-internal
+          (string= (elmo-folder-name-internal wl-draft-folder-internal)
+                   wl-draft-folder))
+      wl-draft-folder-internal
+    (setq wl-draft-folder-internal (wl-folder-make-elmo-folder
+                                   wl-draft-folder))
+    (wl-folder-confirm-existence wl-draft-folder-internal)
+    (elmo-folder-open wl-draft-folder-internal 'load-msgdb)
+    wl-draft-folder-internal))
+
+(defun wl-folder-mime-charset (folder-name)
+  (or (wl-get-assoc-list-value wl-folder-mime-charset-alist folder-name)
+      wl-mime-charset))
+
+(defun wl-folder-make-elmo-folder (folder-name)
+  (elmo-make-folder folder-name nil (wl-folder-mime-charset folder-name)))
+
+(defsubst wl-folder-get-elmo-folder (entity &optional no-cache)
   "Get elmo folder structure from ENTITY."
-  (` (if (, no-cache)
-        (elmo-make-folder (elmo-string (, entity)))
-       (or (wl-folder-elmo-folder-cache-get (, entity))
-          (let* ((name (elmo-string (, entity)))
-                 (folder (elmo-make-folder name)))
-            (wl-folder-elmo-folder-cache-put name folder)
-            folder)))))
+  (let ((name (elmo-string entity)))
+    (if no-cache
+       (wl-folder-make-elmo-folder name)
+      (if (string= name wl-draft-folder)
+         (wl-draft-get-folder)
+       (or (wl-folder-elmo-folder-cache-get name)
+           (let ((folder (wl-folder-make-elmo-folder name)))
+             (wl-folder-elmo-folder-cache-put name folder)
+             folder))))))
 
 (defsubst wl-folder-put-folder-property (beg end id is-group &optional object)
   (put-text-property beg end 'wl-folder-entity-id id object)
@@ -504,6 +519,18 @@ Default HASHTB is `wl-folder-elmo-folder-hashtb'."
            (wl-folder-toggle-disp-summary 'off wl-queue-folder)
          (switch-to-buffer cur-buf))))))
 
+(defun wl-folder-set-persistent-mark (folder number flag)
+  "Set a persistent mark which corresponds to the specified flag on message."
+  (let ((buffer (wl-summary-get-buffer folder)))
+    (if buffer
+       (with-current-buffer buffer
+         (wl-summary-set-persistent-mark flag number))
+      ;; Parent buffer does not exist.
+      (let ((elmo-folder (wl-folder-get-elmo-folder folder)))
+       (elmo-folder-open elmo-folder 'load-msgdb)
+       (elmo-folder-set-flag elmo-folder (list wl-draft-parent-number) flag)
+       (elmo-folder-close elmo-folder)))))
+
 (defun wl-folder-empty-trash ()
   "Empty trash."
   (interactive)
@@ -560,7 +587,7 @@ Optional argument ARG is repeart count."
        (throw 'done t))
       (goto-char (point-max))))
 
-(defsubst wl-folder-update-group (entity diffs &optional is-group)
+(defun wl-folder-update-group (entity diffs &optional is-group)
   (save-excursion
     (let ((path (wl-folder-get-path
                 wl-folder-entity
@@ -613,70 +640,72 @@ Optional argument ARG is repeart count."
 (defun wl-folder-jump-to-current-entity (&optional arg)
   "Enter the current folder.  If optional ARG exists, update folder list."
   (interactive "P")
-  (beginning-of-line)
-  (let (entity beg end indent opened fname err fld-name)
-    (cond
-     ((and (wl-folder-buffer-group-p)
-          (looking-at wl-folder-group-regexp))
-      (save-excursion
-       (setq fname (wl-folder-get-realname (wl-match-buffer 3)))
-       (setq indent (wl-match-buffer 1))
-       (setq opened (wl-match-buffer 2))
-       (if (string= opened "+")
-           (progn
-             (setq entity (wl-folder-search-group-entity-by-name
-                           fname
-                           wl-folder-entity))
-             (setq beg (point))
-             (if arg
-                 (wl-folder-update-recursive-current-entity entity)
-               ;; insert as opened
-               (setcdr (assoc (car entity) wl-folder-group-alist) t)
-               (if (eq 'access (cadr entity))
-                   (wl-folder-maybe-load-folder-list entity))
-               ;(condition-case errobj
-                   (progn
-                     (if (or (wl-folder-force-fetch-p (car entity))
-                             (and
-                              (eq 'access (cadr entity))
-                              (null (caddr entity))))
-                         (wl-folder-update-newest indent entity)
-                       (wl-folder-insert-entity indent entity))
-                     (wl-highlight-folder-path wl-folder-buffer-cur-path))
-                ; (quit
-                ;  (setq err t)
-                ;  (setcdr (assoc fname wl-folder-group-alist) nil))
-                ; (error
-                ;  (elmo-display-error errobj t)
-                ;  (ding)
-                ;  (setq err t)
-                ;  (setcdr (assoc fname wl-folder-group-alist) nil)))
-               (if (not err)
-                   (let ((buffer-read-only nil))
-                     (delete-region (save-excursion (beginning-of-line)
-                                                    (point))
-                                    (save-excursion (end-of-line)
-                                                    (+ 1 (point))))))))
-         (setq beg (point))
-         (end-of-line)
-         (save-match-data
-           (setq end
-                 (progn (wl-folder-goto-bottom-of-current-folder indent)
-                        (beginning-of-line)
-                        (point))))
-         (setq entity (wl-folder-search-group-entity-by-name
-                       fname
-                       wl-folder-entity))
-         (let ((buffer-read-only nil))
-           (delete-region beg end))
-         (setcdr (assoc (car entity) wl-folder-group-alist) nil)
-         (wl-folder-insert-entity indent entity) ; insert entity
-         (forward-line -1)
-         (wl-highlight-folder-path wl-folder-buffer-cur-path)
-;        (wl-delete-all-overlays)
-;        (wl-highlight-folder-current-line)
-         )))
-     ((setq fld-name (wl-folder-entity-name))
+  (let ((fld-name (wl-folder-get-entity-from-buffer))
+       entity beg end indent opened err)
+    (unless fld-name
+      (error "No folder"))
+    (beginning-of-line)
+    (if (and (wl-folder-buffer-group-p)
+            (looking-at wl-folder-group-regexp))
+       ;; folder group
+       (save-excursion
+         (setq indent (wl-match-buffer 1))
+         (setq opened (wl-match-buffer 2))
+         (if (string= opened "+")
+             (progn
+               (setq entity (wl-folder-search-group-entity-by-name
+                             fld-name
+                             wl-folder-entity))
+               (setq beg (point))
+               (if arg
+                   (wl-folder-update-recursive-current-entity entity)
+                 ;; insert as opened
+                 (setcdr (assoc (car entity) wl-folder-group-alist) t)
+                 (if (eq 'access (cadr entity))
+                     (wl-folder-maybe-load-folder-list entity))
+                 ;(condition-case errobj
+                 (progn
+                   (if (or (wl-folder-force-fetch-p (car entity))
+                           (and
+                            (eq 'access (cadr entity))
+                            (null (caddr entity))))
+                       (wl-folder-update-newest indent entity)
+                     (wl-folder-insert-entity indent entity))
+                   (wl-highlight-folder-path wl-folder-buffer-cur-path))
+                 ; (quit
+                 ;  (setq err t)
+                 ;  (setcdr (assoc fld-name wl-folder-group-alist) nil))
+                 ; (error
+                 ;  (elmo-display-error errobj t)
+                 ;  (ding)
+                 ;  (setq err t)
+                 ;  (setcdr (assoc fld-name wl-folder-group-alist) nil)))
+                 (if (not err)
+                     (let ((buffer-read-only nil))
+                       (delete-region (save-excursion (beginning-of-line)
+                                                      (point))
+                                      (save-excursion (end-of-line)
+                                                      (+ 1 (point))))))))
+           (setq beg (point))
+           (end-of-line)
+           (save-match-data
+             (setq end
+                   (progn (wl-folder-goto-bottom-of-current-folder indent)
+                          (beginning-of-line)
+                          (point))))
+           (setq entity (wl-folder-search-group-entity-by-name
+                         fld-name
+                         wl-folder-entity))
+           (let ((buffer-read-only nil))
+             (delete-region beg end))
+           (setcdr (assoc (car entity) wl-folder-group-alist) nil)
+           (wl-folder-insert-entity indent entity) ; insert entity
+           (forward-line -1)
+           (wl-highlight-folder-path wl-folder-buffer-cur-path)
+           ; (wl-delete-all-overlays)
+           ; (wl-highlight-folder-current-line)
+           ))
+      ;; ordinal folder
       (wl-folder-set-current-entity-id
        (get-text-property (point) 'wl-folder-entity-id))
       (setq fld-name (wl-folder-get-folder-name-by-id
@@ -691,7 +720,7 @@ Optional argument ARG is repeart count."
        (wl-summary-goto-folder-subr fld-name
                                     (wl-summary-get-sync-range
                                      (wl-folder-get-elmo-folder fld-name))
-                                    nil arg t)))))
+                                    nil arg t))))
   (set-buffer-modified-p nil))
 
 (defun wl-folder-close-entity (entity)
@@ -719,7 +748,7 @@ Optional argument ARG is repeart count."
        (if entity ()
          (setq entity
                (wl-folder-search-group-entity-by-name
-                (wl-folder-get-realname (wl-match-buffer 3))
+                (wl-folder-get-entity-from-buffer)
                 wl-folder-entity)))
        (let ((inhibit-read-only t)
              (entities (list entity))
@@ -823,7 +852,7 @@ Optional argument ARG is repeart count."
         (t
          (message "Uncheck(unplugged) \"%s\"" entity)))))
     (if ret-val
-       (message "Checking \"%s\" is done."
+       (message "Checking \"%s\" is done"
                 (if (consp entity) (car entity) entity)))
     (run-hooks 'wl-folder-check-entity-hook)
     ret-val))
@@ -836,17 +865,16 @@ Optional argument ARG is repeart count."
                     (if (wl-string-match-member entity wl-strict-diff-folders)
                         (elmo-strict-folder-diff folder)
                       (elmo-folder-diff folder)))
+                (elmo-open-error
+                 (signal (car err) (cdr err)))
                 (error
                  ;; maybe not exist folder.
-                 (if (and (not (memq 'elmo-open-error
-                                     (get (car err) 'error-conditions)))
-                          (not (elmo-folder-exists-p folder)))
+                 (if (not (elmo-folder-exists-p folder))
                      (wl-folder-create-subr folder)
                    (signal (car err) (cdr err))))))
         (new    (elmo-diff-new nums))
         (unread (elmo-diff-unread nums))
-        (all    (elmo-diff-all nums))
-        unsync nomif)
+        (all    (elmo-diff-all nums)))
     (if (and (eq wl-folder-notify-deleted 'sync)
             (or (and new    (> 0 new))
                 (and unread (> 0 unread))
@@ -861,9 +889,11 @@ Optional argument ARG is repeart count."
        (setq new    (and new    (max 0 new))
              unread (and unread (max 0 unread))
              all    (and all    (max 0 all))))
-      (setq unread (or (and unread (- unread (or new 0)))
-                      (elmo-folder-get-info-unread folder)
-                      (cdr (wl-summary-count-unread))))
+      (setq unread (if unread
+                      (- unread (or new 0))
+                    (or (elmo-folder-get-info-unread folder)
+                        (cdr (assq 'unread (elmo-folder-count-flags folder)))
+                        0)))
       (wl-folder-entity-hashtb-set wl-folder-entity-hashtb entity
                                   (list new unread all)
                                   (get-buffer wl-folder-buffer-name)))
@@ -974,6 +1004,9 @@ Optional argument ARG is repeart count."
            (if buf-win
                (select-window buf-win)
              (set-buffer buf))
+           (when (and wl-folder-buffer-cur-entity-id
+                      (not (eq wl-folder-buffer-cur-entity-id entity-id)))
+             (setq wl-folder-buffer-last-visited-entity-id wl-folder-buffer-cur-entity-id))
            (setq wl-folder-buffer-cur-entity-id entity-id)
            (setq wl-folder-buffer-cur-path
                  (wl-folder-get-path wl-folder-entity entity-id))
@@ -1008,36 +1041,32 @@ If current line is group folder, check all sub entries."
    ((stringp entity)
     (let* ((folder (wl-folder-get-elmo-folder entity))
           (nums (wl-folder-get-entity-info entity))
-          (wl-summary-highlight (if (or (wl-summary-sticky-p folder)
-                                        (wl-summary-always-sticky-folder-p
-                                         folder))
-                                    wl-summary-highlight))
-          wl-auto-select-first new unread sticky)
-      (setq new (or (car nums) 0))
-      (setq unread (or (cadr nums) 0))
-      (if (or (not unread-only)
-             (or (< 0 new) (< 0 unread)))
-         (let ((wl-summary-buffer-name
-                (if (setq sticky (get-buffer (wl-summary-sticky-buffer-name
-                                              (elmo-folder-name-internal
-                                               folder))))
-                    ;; Sticky folder exists.
-                    (wl-summary-sticky-buffer-name
-                     (elmo-folder-name-internal folder))
-                  (concat
-                   wl-summary-buffer-name
-                   (symbol-name this-command))))
-               (wl-summary-use-frame nil)
-               (wl-summary-always-sticky-folder-list nil))
-           (save-window-excursion
-             (save-excursion
-               (wl-summary-goto-folder-subr entity
-                                            (wl-summary-get-sync-range
-                                             folder)
-                                            nil nil nil t)
-               (if sticky
-                   (wl-summary-save-status)
-                 (wl-summary-exit))))))))))
+          (new (or (car nums) 0))
+          (unread (or (cadr nums) 0)))
+      (when (or (not unread-only)
+               (or (> new 0) (> unread 0)))
+       (let ((summary (wl-summary-get-buffer entity))
+             (range (wl-summary-get-sync-range folder)))
+         (if summary
+             (save-selected-window
+               (with-current-buffer summary
+                 (let ((win (get-buffer-window summary t)))
+                   (when win
+                     (select-window win)))
+                 (wl-summary-sync 'unset-cursor range)
+                 (wl-summary-save-status)))
+           (elmo-folder-open folder 'load-msgdb)
+           (unwind-protect
+               (progn
+                 (elmo-folder-synchronize folder nil (eq range 'all))
+                 (wl-folder-set-folder-updated
+                  entity
+                  (list
+                   0
+                   (or (cdr (assq 'unread (elmo-folder-count-flags folder)))
+                       0)
+                   (elmo-folder-length folder))))
+             (elmo-folder-close folder)))))))))
 
 (defun wl-folder-sync-current-entity (&optional unread-only)
   "Synchronize the folder at position.
@@ -1065,39 +1094,34 @@ If current line is group folder, check all subfolders."
        (wl-folder-mark-as-read-all-entity (car flist))
        (setq flist (cdr flist)))))
    ((stringp entity)
-    (let* ((nums (wl-folder-get-entity-info entity))
-          (folder (wl-folder-get-elmo-folder entity))
-          (wl-summary-highlight (if (or (wl-summary-sticky-p folder)
-                                        (wl-summary-always-sticky-folder-p
-                                         folder))
-                                    wl-summary-highlight))
-          wl-auto-select-first new unread sticky)
-      (setq new (or (car nums) 0))
-      (setq unread (or (cadr nums) 0))
-      (if (or (< 0 new) (< 0 unread))
-         (save-window-excursion
-           (save-excursion
-             (let ((wl-summary-buffer-name
-                    (if (setq sticky (get-buffer
-                                      (wl-summary-sticky-buffer-name
-                                       (elmo-folder-name-internal
-                                        folder))))
-                        ;; Sticky folder exists.
-                        (wl-summary-sticky-buffer-name
-                         (elmo-folder-name-internal folder))
-                      (concat
-                       wl-summary-buffer-name
-                       (symbol-name this-command))))
-                   (wl-summary-use-frame nil)
-                   (wl-summary-always-sticky-folder-list nil))
-               (wl-summary-goto-folder-subr entity
-                                            (wl-summary-get-sync-range folder)
-                                            nil)
-               (wl-summary-mark-as-read-all)
-               (if sticky
-                   (wl-summary-save-status)
-                 (wl-summary-exit)))))
-       (sit-for 0))))))
+    (let* ((folder (wl-folder-get-elmo-folder entity))
+          (nums (wl-folder-get-entity-info entity))
+          (new (or (car nums) 0))
+          (unread (or (cadr nums) 0)))
+      (when (or (> new 0) (> unread 0))
+       (let ((summary (wl-summary-get-buffer entity))
+             (range (wl-summary-get-sync-range folder)))
+         (if summary
+             (save-selected-window
+               (with-current-buffer summary
+                 (let ((win (get-buffer-window summary t)))
+                   (when win
+                     (select-window win)))
+                 (wl-summary-sync 'unset-cursor range)
+                 (wl-summary-mark-as-read-all)
+                 (wl-summary-save-status)))
+           (elmo-folder-open folder 'load-msgdb)
+           (unwind-protect
+               (progn
+                 (elmo-folder-synchronize folder nil (eq range 'all))
+                 (elmo-folder-unset-flag
+                  folder
+                  (elmo-folder-list-flagged folder 'unread 'in-msgdb)
+                  'unread)
+                 (wl-folder-set-folder-updated
+                  entity
+                  (list 0 0 (elmo-folder-length folder))))
+             (elmo-folder-close folder)))))))))
 
 (defun wl-folder-mark-as-read-all-current-entity ()
   "Mark as read all messages in the folder at position.
@@ -1108,7 +1132,8 @@ If current line is group folder, all subfolders are marked."
          (group (wl-folder-buffer-group-p))
          summary-buf)
       (when (and entity-name
-                (y-or-n-p (format "Mark all messages in %s as read? " entity-name)))
+                (y-or-n-p (format "Mark all messages in %s as read? "
+                                  entity-name)))
        (wl-folder-mark-as-read-all-entity
         (if group
             (wl-folder-search-group-entity-by-name entity-name
@@ -1317,7 +1342,8 @@ If current line is group folder, all subfolders are marked."
           'is-group
           (car entity))
          (wl-folder-set-id-name wl-folder-entity-id
-                                (car entity) hashtb))
+                                (car entity) hashtb)
+         (setq wl-folder-entity-id (+ 1 wl-folder-entity-id)))
        (and entities
             (wl-push entities entity-stack))
        (setq entities (nth 2 entity)))
@@ -1332,8 +1358,8 @@ If current line is group folder, all subfolders are marked."
           nil
           entity)
          (wl-folder-set-id-name wl-folder-entity-id
-                                entity hashtb))))
-      (setq wl-folder-entity-id (+ 1 wl-folder-entity-id))
+                                entity hashtb)
+         (setq wl-folder-entity-id (+ 1 wl-folder-entity-id)))))
       (unless entities
        (setq entities (wl-pop entity-stack))))))
 
@@ -1378,8 +1404,9 @@ If current line is group folder, all subfolders are marked."
       ;; hide wl-summary window.
       (let ((cur-buf (current-buffer))
            (summary-buffer (wl-summary-get-buffer folder)))
-       (wl-folder-select-buffer summary-buffer)
-       (delete-window)
+       (when summary-buffer
+         (wl-folder-select-buffer summary-buffer)
+         (delete-window))
        (select-window (get-buffer-window cur-buf))))
      (t
       (setq wl-folder-buffer-disp-summary
@@ -1395,9 +1422,11 @@ If current line is group folder, all subfolders are marked."
                (unwind-protect
                    (wl-summary-goto-folder-subr folder-name 'no-sync nil)
                  (select-window (get-buffer-window cur-buf))))
-           (wl-folder-select-buffer (wl-summary-get-buffer folder-name))
-           (delete-window)
-           (select-window (get-buffer-window cur-buf)))))))))
+           (let ((summary-buffer (wl-summary-get-buffer folder-name)))
+             (when summary-buffer
+               (wl-folder-select-buffer summary-buffer)
+               (delete-window))
+             (select-window (get-buffer-window cur-buf))))))))))
 
 (defun wl-folder-prev-unsync ()
   "Move cursor to the previous unsync folder."
@@ -1421,8 +1450,7 @@ If current line is group folder, all subfolders are marked."
            (if (or (wl-folder-buffer-group-p)
                    (not plugged)
                    (setq entity
-                         (wl-folder-get-realname
-                          (wl-folder-folder-name)))
+                         (wl-folder-get-entity-from-buffer))
                    (elmo-folder-plugged-p entity))
                (throw 'found t))))
        (beginning-of-line)
@@ -1438,7 +1466,7 @@ If current line is group folder, all subfolders are marked."
     (if (re-search-backward (wl-folder-unread-regex group) nil t)
        (progn
          (beginning-of-line)
-         (wl-folder-folder-name))
+         (wl-folder-get-entity-from-buffer))
       (goto-char start-point)
       (message "No more unread folder")
       nil)))
@@ -1452,7 +1480,7 @@ If current line is group folder, all subfolders are marked."
     (if (re-search-forward (wl-folder-unread-regex group) nil t)
        (progn
          (beginning-of-line)
-         (wl-folder-folder-name))
+         (wl-folder-get-entity-from-buffer))
       (goto-char start-point)
       (message "No more unread folder")
       nil)))
@@ -1483,18 +1511,14 @@ Entering Folder mode calls the value of `wl-folder-mode-hook'."
   (run-hooks 'wl-folder-mode-hook))
 
 (defun wl-folder-append-petname (realname petname)
-  (let (pentry)
-    ;; check group name.
-    (if (wl-folder-search-group-entity-by-name petname wl-folder-entity)
-       (error "%s already defined as group name" petname))
-    (when (setq pentry (wl-string-assoc realname wl-folder-petname-alist))
+  (let ((pentry (wl-string-assoc realname wl-folder-petname-alist)))
+    (when pentry
       (setq wl-folder-petname-alist
-           (delete pentry wl-folder-petname-alist)))
-    (wl-append wl-folder-petname-alist
-              (list (cons realname petname)))))
+           (delete pentry wl-folder-petname-alist))))
+  (wl-append wl-folder-petname-alist
+            (list (cons realname petname))))
 
-(defun wl-folder (&optional arg)
-  (interactive "P")
+(defun wl-folder ()
   (let (initialize folder-buf)
     (if (setq folder-buf (get-buffer wl-folder-buffer-name))
        (if wl-folder-use-frame
@@ -1523,6 +1547,8 @@ Entering Folder mode calls the value of `wl-folder-mode-hook'."
       (set-buffer wl-folder-buffer-name)
       (wl-folder-mode)
       ;; Initialization.
+      (unless wl-folder-entity
+       (wl-folder-init))
       (setq wl-folder-entity-id 0)
       (wl-folder-entity-assign-id wl-folder-entity)
       (setq wl-folder-entity-hashtb
@@ -1568,8 +1594,8 @@ Entering Folder mode calls the value of `wl-folder-mode-hook'."
 
 (defun wl-folder-set-folder-updated (name value)
   (save-excursion
-    (let (buf)
-      (if (setq buf (get-buffer wl-folder-buffer-name))
+    (let ((buf (get-buffer wl-folder-buffer-name)))
+      (if buf
          (wl-folder-entity-hashtb-set
           wl-folder-entity-hashtb name value buf))
       (setq wl-folder-info-alist-modified t))))
@@ -1715,7 +1741,9 @@ Entering Folder mode calls the value of `wl-folder-mode-hook'."
 ;;;                       wl-folder-newsgroups-hashtb))))
 ;;;            (message "fetching folder entries...done"))
              (insert indent "[" (if as-opened "-" "+") "]"
-                     (wl-folder-get-petname (car entity)))
+                     (if (eq (cadr entity) 'access)
+                         (wl-folder-get-petname (car entity))
+                       (car entity)))
              (setq group-name-end (point))
              (insert ":0/0/0\n")
              (wl-folder-put-folder-property
@@ -1751,7 +1779,9 @@ Entering Folder mode calls the value of `wl-folder-mode-hook'."
                    (elmo-display-progress
                     'wl-folder-insert-entity "Inserting group %s..."
                     (/ (* i 100) len) (car entity)))
-                 (setq flist (cdr flist))))
+                 (setq flist (cdr flist)))
+               (if (> len 0)
+                   (message "Inserting group %s...done" (car entity))))
              (save-excursion
                (goto-char group-name-end)
                (delete-region (point) (save-excursion (end-of-line)
@@ -1762,7 +1792,9 @@ Entering Folder mode calls the value of `wl-folder-mode-hook'."
                (wl-highlight-folder-current-line ret-val)))
          (setq ret-val (wl-folder-calc-finfo entity))
          (insert indent "[" (if as-opened "-" "+") "]"
-                 (wl-folder-get-petname (car entity))
+                 (if (eq (cadr entity) 'access)
+                     (wl-folder-get-petname (car entity))
+                   (car entity))
                  (format ":%d/%d/%d"
                          (or (nth 0 ret-val) 0)
                          (or (nth 1 ret-val) 0)
@@ -1802,13 +1834,11 @@ Entering Folder mode calls the value of `wl-folder-mode-hook'."
   (wl-folder-check-entity wl-folder-entity))
 
 (defun wl-folder-entity-hashtb-set (entity-hashtb name value buffer)
-  (let (cur-val
+  (let ((cur-val (wl-folder-get-entity-info name entity-hashtb))
        (new-diff 0)
        (unread-diff 0)
        (all-diff 0)
-       diffs
-       entity-list)
-    (setq cur-val (wl-folder-get-entity-info name entity-hashtb))
+       diffs)
     (setq new-diff    (- (or (nth 0 value) 0) (or (nth 0 cur-val) 0)))
     (setq unread-diff
          (+ new-diff
@@ -1821,47 +1851,45 @@ Entering Folder mode calls the value of `wl-folder-mode-hook'."
       (save-match-data
        (with-current-buffer buffer
          (save-excursion
-           (setq entity-list (wl-folder-search-entity-list-by-name
-                              name wl-folder-entity))
-           (while entity-list
-             (wl-folder-update-group (car entity-list) diffs)
-             (setq entity-list (cdr entity-list)))
+           (let ((entity-list (wl-folder-search-entity-list-by-name
+                               name wl-folder-entity)))
+             (while entity-list
+               (wl-folder-update-group (car entity-list) diffs)
+               (setq entity-list (cdr entity-list))))
            (goto-char (point-min))
            (while (wl-folder-buffer-search-entity name)
              (wl-folder-update-line value))))))))
 
 (defun wl-folder-update-unread (folder unread)
-;  (save-window-excursion
-    (let ((buf (get-buffer wl-folder-buffer-name))
-         cur-unread
-         (unread-diff 0)
-         ;;(fld (elmo-string folder))
-         value newvalue entity-list)
+  (let ((buf (get-buffer wl-folder-buffer-name))
+       (value (wl-folder-get-entity-info folder))
+       cur-unread
+       (unread-diff 0)
+       newvalue)
 ;;; Update folder-info
 ;;;    (elmo-folder-set-info-hashtb fld nil nil nil unread)
-      (setq cur-unread (or (nth 1 (wl-folder-get-entity-info folder)) 0))
-      (setq unread-diff (- (or unread 0) cur-unread))
-      (setq value (wl-folder-get-entity-info folder))
-      (setq newvalue (list (nth 0 value)
-                          unread
-                          (nth 2 value)))
-      (wl-folder-set-entity-info folder newvalue)
-      (setq wl-folder-info-alist-modified t)
-      (when (and buf
-                (not (eq unread-diff 0)))
-       (save-match-data
-         (with-current-buffer buf
-           (save-excursion
-             (setq entity-list (wl-folder-search-entity-list-by-name
-                                folder wl-folder-entity))
+    (setq cur-unread (or (nth 1 value) 0))
+    (setq unread-diff (- (or unread 0) cur-unread))
+    (setq newvalue (list (nth 0 value)
+                        unread
+                        (nth 2 value)))
+    (wl-folder-set-entity-info folder newvalue)
+    (setq wl-folder-info-alist-modified t)
+    (when (and buf
+              (not (eq unread-diff 0)))
+      (save-match-data
+       (with-current-buffer buf
+         (save-excursion
+           (let ((entity-list (wl-folder-search-entity-list-by-name
+                               folder wl-folder-entity)))
              (while entity-list
                (wl-folder-update-group (car entity-list) (list 0
                                                                unread-diff
                                                                0))
-               (setq entity-list (cdr entity-list)))
-             (goto-char (point-min))
-             (while (wl-folder-buffer-search-entity folder)
-               (wl-folder-update-line newvalue))))))));)
+               (setq entity-list (cdr entity-list))))
+           (goto-char (point-min))
+           (while (wl-folder-buffer-search-entity folder)
+             (wl-folder-update-line newvalue))))))))
 
 (defun wl-folder-create-entity-hashtb (entity &optional hashtb reconst)
   (let ((hashtb (or hashtb (elmo-make-hash wl-folder-entity-id)))
@@ -2033,7 +2061,8 @@ Entering Folder mode calls the value of `wl-folder-mode-hook'."
     (when wl-smtp-posting-server
       (elmo-set-plugged wl-plugged
                        wl-smtp-posting-server  ; server
-                       (or (and (boundp 'smtp-service) smtp-service)
+                       (or wl-smtp-posting-port
+                           (and (boundp 'smtp-service) smtp-service)
                            "smtp")     ; port
                        wl-smtp-connection-type
                        nil nil "smtp" add))
@@ -2041,8 +2070,8 @@ Entering Folder mode calls the value of `wl-folder-mode-hook'."
     (when wl-nntp-posting-server
       (elmo-set-plugged wl-plugged
                        wl-nntp-posting-server
-                       wl-nntp-posting-stream-type
                        wl-nntp-posting-port
+                       wl-nntp-posting-stream-type
                        nil nil "nntp" add))
     (run-hooks 'wl-make-plugged-hook)))
 
@@ -2218,7 +2247,7 @@ Use `wl-subscribed-mailing-list'."
                                     (+ (nth 0 nums)(nth 1 nums)))
                                "*")
                            (or (nth 2 nums) "*")))
-           (put-text-property (match-beginning 2) (point) id is-group)
+           (wl-folder-put-folder-property (match-beginning 2) (point) id is-group)
            (if is-group
                ;; update only colors
                (wl-highlight-folder-group-line nums)
@@ -2227,17 +2256,29 @@ Use `wl-subscribed-mailing-list'."
            (set-buffer-modified-p nil))))))
 
 (defun wl-folder-goto-folder (&optional arg)
+  "Visit some folder."
   (interactive "P")
   (wl-folder-goto-folder-subr nil arg))
 
 (defun wl-folder-goto-folder-sticky ()
+  "Visit some folder and make it sticky."
   (interactive)
   (wl-folder-goto-folder-subr nil t))
 
 (defun wl-folder-goto-draft-folder (&optional arg)
+  "Visit draft folder."
   (interactive "P")
   (wl-folder-goto-folder-subr wl-draft-folder arg))
 
+(defun wl-folder-revisit-last-visited-folder (&optional arg)
+  "Revisit last visited folder."
+  (interactive "P")
+  (let ((folder
+        (wl-folder-get-folder-name-by-id wl-folder-buffer-last-visited-entity-id)))
+    (if (and folder
+            (y-or-n-p (format "Revisit %s? " folder)))
+       (wl-folder-goto-folder-subr folder arg))))
+
 (defun wl-folder-goto-folder-subr (&optional folder sticky)
   (beginning-of-line)
   (let (summary-buf fld-name entity id error-selecting)
@@ -2430,12 +2471,13 @@ Use `wl-subscribed-mailing-list'."
   (interactive)
   (if (not fld-name)
       (setq fld-name (wl-summary-read-folder wl-default-folder)))
-  (let* ((id (wl-folder-get-entity-id
-             (wl-folder-search-entity-by-name fld-name wl-folder-entity
-                                              'folder)))
-        (path (and id (wl-folder-get-path wl-folder-entity id))))
-      (if path
-         (wl-folder-open-folder-sub path))))
+  (let ((entity (wl-folder-search-entity-by-name
+                fld-name wl-folder-entity 'folder)))
+    (if entity
+       (let* ((id (wl-folder-get-entity-id entity))
+              (path (and id (wl-folder-get-path wl-folder-entity id))))
+         (if path (wl-folder-open-folder-sub path)))
+      (message "%s: not found" fld-name))))
 
 (defun wl-folder-open-folder-sub (path)
   (let ((inhibit-read-only t)
@@ -2458,7 +2500,7 @@ Use `wl-subscribed-mailing-list'."
                 (string= "+" (wl-match-buffer 2)));; closed group
            (save-excursion
              (setq indent (wl-match-buffer 1))
-             (setq name (wl-folder-get-realname (wl-match-buffer 3)))
+             (setq name (wl-folder-get-entity-from-buffer))
              (setq entity (wl-folder-search-group-entity-by-name
                            name
                            wl-folder-entity))
@@ -2514,16 +2556,16 @@ Use `wl-subscribed-mailing-list'."
       (save-excursion
        (goto-char (point-min))
        (while (re-search-forward
-               "^\\([ ]*\\)\\[\\([+]\\)\\]\\(.+\\):[-0-9-]+/[0-9-]+/[0-9-]+\n"
+               "^\\([ ]*\\)\\[\\([+]\\)\\]\\(.+\\):[-0-9-]+/[0-9-]+/[0-9-]+$"
                nil t)
          (setq indent (wl-match-buffer 1))
-         (setq name (wl-folder-get-realname (wl-match-buffer 3)))
+         (setq name (wl-folder-get-entity-from-buffer))
          (setq entity (wl-folder-search-group-entity-by-name
                        name
                        wl-folder-entity))
          ;; insert as opened
          (setcdr (assoc (car entity) wl-folder-group-alist) t)
-         (forward-line -1)
+         (beginning-of-line)
          (wl-folder-insert-entity indent entity)
          (delete-region (save-excursion (beginning-of-line)
                                         (point))
@@ -2564,19 +2606,20 @@ Use `wl-subscribed-mailing-list'."
 (defun wl-folder-open-close ()
   "Open or close parent entity."
   (interactive)
-  (save-excursion
-    (beginning-of-line)
-    (if (wl-folder-buffer-group-p)
-       ;; if group (whether opend or closed.)
-       (wl-folder-jump-to-current-entity)
-      ;; if folder
-      (let (indent)
-       (setq indent (save-excursion
-                      (re-search-forward "\\([ ]*\\)." nil t)
-                      (wl-match-buffer 1)))
-       (while (looking-at indent)
-         (forward-line -1)))
-      (wl-folder-jump-to-current-entity))))
+  (unless (wl-folder-get-entity-from-buffer)
+    (error "No folder"))
+  (beginning-of-line)
+  (if (wl-folder-buffer-group-p)
+      ;; if group (whether opend or closed.)
+      (wl-folder-jump-to-current-entity)
+    ;; if folder
+    (let (indent)
+      (setq indent (save-excursion
+                    (re-search-forward "\\([ ]*\\)." nil t)
+                    (wl-match-buffer 1)))
+      (while (looking-at indent)
+       (forward-line -1)))
+    (wl-folder-jump-to-current-entity)))
 
 (defsubst wl-folder-access-subscribe-p (group folder)
   (let (subscr regexp match)
@@ -2750,14 +2793,11 @@ Use `wl-subscribed-mailing-list'."
        (cons 0 0))))))
 
 (defun wl-folder-count-incorporates (folder)
-  (let ((marks (elmo-msgdb-mark-load
-               (elmo-folder-msgdb-path folder)))
-       (sum 0))
-    (while marks
-      (if (member (cadr (car marks))
-                 wl-summary-incorporate-marks)
-         (incf sum))
-      (setq marks (cdr marks)))
+  (let ((sum 0))
+    (dolist (number (elmo-folder-list-flagged folder 'any))
+      (when (member (wl-summary-message-mark folder number)
+                   wl-summary-incorporate-marks)
+       (incf sum)))
     sum))
 
 (defun wl-folder-prefetch-current-entity (&optional no-check)
@@ -2830,7 +2870,7 @@ Call `wl-summary-write-current-folder' with current folder name."
   (interactive)
   (unless (wl-folder-buffer-group-p)
     (wl-summary-write-current-folder
-     (wl-folder-get-realname (wl-folder-entity-name)))))
+     (wl-folder-get-entity-from-buffer))))
 
 (defun wl-folder-mimic-kill-buffer ()
   "Kill the current (Folder) buffer with query."
@@ -2845,26 +2885,24 @@ Call `wl-summary-write-current-folder' with current folder name."
       (kill-buffer bufname))))
 
 (defun wl-folder-create-subr (folder)
-  (if (elmo-folder-creatable-p folder)
-  (if (y-or-n-p (format "Folder %s does not exist, create it? "
-                       (elmo-folder-name-internal folder)))
-      (progn
-       (message "")
-       (setq wl-folder-entity-hashtb
-             (wl-folder-create-entity-hashtb
-              (elmo-folder-name-internal folder)
-              wl-folder-entity-hashtb))
-       (unless (elmo-folder-create folder)
-         (error "Create folder failed")))
-       (error "Folder %s is not created" (elmo-folder-name-internal folder)))
-    (error "Folder %s does not exist" (elmo-folder-name-internal folder))))
+  (let ((name (elmo-folder-name-internal folder)))
+    (unless (elmo-folder-creatable-p folder)
+      (error "Folder %s does not exist" name))
+    (unless (y-or-n-p (format "Folder %s does not exist, create it? " name))
+      (error "Folder %s is not created" name))
+    (message "")
+    (setq wl-folder-entity-hashtb
+         (wl-folder-create-entity-hashtb name wl-folder-entity-hashtb))
+    (unless (elmo-folder-create folder)
+      (error "Create folder failed"))))
 
 (defun wl-folder-confirm-existence (folder &optional force)
   (if force
       (unless (elmo-folder-exists-p folder)
        (wl-folder-create-subr folder))
     (unless (or (wl-folder-entity-exists-p (elmo-folder-name-internal folder))
-               (file-exists-p (elmo-folder-msgdb-path folder))
+               (and (elmo-folder-msgdb-path folder)
+                    (file-exists-p (elmo-folder-msgdb-path folder)))
                (elmo-folder-exists-p folder))
       (wl-folder-create-subr folder))))
 
@@ -2884,7 +2922,7 @@ Call `wl-summary-write-current-folder' with current folder name."
     (unless entity (error "No folder"))
     (wl-folder-goto-folder-subr
      (concat "/"
-            (elmo-read-search-condition
+            (wl-read-search-condition
              wl-fldmgr-make-filter-default)
             "/" entity))))
 
@@ -2892,7 +2930,7 @@ Call `wl-summary-write-current-folder' with current folder name."
   (interactive)
   (save-excursion
     (let* ((condition (car (elmo-parse-search-condition
-                           (elmo-read-search-condition
+                           (wl-read-search-condition
                             wl-summary-pick-field-default))))
           (entity (wl-folder-get-entity-from-buffer))
           (folder-list
@@ -2979,7 +3017,7 @@ Call `wl-summary-write-current-folder' with current folder name."
 
 (defun wl-folder-complete-filter-condition (string predicate flag)
   (cond
-   ((string-match "^\\(.*|\\|.*&\\|.*!\\|.*(\\)\\([^:]*\\)$" string)
+   ((string-match "^\\(.*|\\|.*&\\|.*(\\)\\([^:]*\\)$" string)
     (let* ((str1 (match-string 1 string))
           (str2 (match-string 2 string))
           (str2-comp
@@ -2994,10 +3032,7 @@ Call `wl-summary-write-current-folder' with current folder name."
    (t
     (let ((candidate
           (mapcar (lambda (x) (list (concat (downcase x) ":")))
-                  (append '("last" "first"
-                            "from" "subject" "to" "cc" "body"
-                            "since" "before" "tocc")
-                          elmo-msgdb-extra-fields))))
+                  (wl-search-condition-fields))))
       (if (not flag)
          (try-completion string candidate)
        (all-completions string candidate))))))