* wl-vars.el (wl-summary-default-view-alist): Fix docstring
[elisp/wanderlust.git] / wl / wl-draft.el
index e71640a..56955a9 100644 (file)
 (defvar wl-draft-reedit nil)
 (defvar wl-draft-reply-buffer nil)
 (defvar wl-draft-forward nil)
-(defvar wl-draft-parent-folder nil)
+(defvar wl-draft-doing-mime-bcc nil)
+
+(defvar wl-draft-parent-folder nil
+  "Folder name of the summary in which current draft is invoked.
+This variable is local in each draft buffer.
+You can refer its value in `wl-draft-config-alist'.
+
+e.g.
+\(setq wl-draft-config-alist
+      '(((string-match \".*@domain1$\" wl-draft-parent-folder)
+         (\"From\" . \"user@domain1\"))
+        ((string-match \".*@domain2$\" wl-draft-parent-folder)
+         (\"From\" . \"user@domain2\"))))")
 
 (defvar wl-draft-config-sub-func-alist
   '((body              . wl-draft-config-sub-body)
   (interactive)
   (if (not (file-exists-p wl-x-face-file))
       (error "File %s does not exist" wl-x-face-file)
-    (beginning-of-buffer)
+    (goto-char (point-min))
     (search-forward mail-header-separator nil t)
     (beginning-of-line)
     (wl-draft-insert-x-face-field-here)
 
 (defun wl-draft-setup ()
   (let ((field wl-draft-fields)
-       ret-val)
+       cl)
     (while field
-      (setq ret-val (append ret-val
-                           (list (cons (concat (car field) " ")
-                                       (concat (car field) " ")))))
+      (setq cl (append cl
+                      (list (cons (concat (car field) " ")
+                                  (concat (car field) " ")))))
       (setq field (cdr field)))
-    (setq wl-draft-field-completion-list ret-val)))
+    (setq cl
+         (cons (cons (concat wl-draft-mime-bcc-field-name  ": ")
+                     (concat wl-draft-mime-bcc-field-name  ": "))
+               cl))
+    (setq wl-draft-field-completion-list cl)
+    (setq wl-address-complete-header-regexp
+         (wl-regexp-opt
+          (append wl-address-complete-header-list
+                  (list (concat wl-draft-mime-bcc-field-name  ":")))))))
 
 (defun wl-draft-make-mail-followup-to (recipients)
   (if (elmo-list-member
       (let ((rlist (elmo-list-delete
                    (or wl-user-mail-address-list
                        (list (wl-address-header-extract-address wl-from)))
-                   (copy-sequence recipients))))
+                   recipients
+                   (lambda (elem list)
+                     (elmo-delete-if
+                      (lambda (item) (string= (downcase elem)
+                                              (downcase item)))
+                      list)))))
        (if (elmo-list-member rlist (mapcar 'downcase
                                            wl-subscribed-mailing-list))
            rlist
   (let ((myself (or wl-user-mail-address-list
                    (list (wl-address-header-extract-address wl-from)))))
     (cond (wl-draft-always-delete-myself ; always-delete option
-          (elmo-list-delete myself cc))
+          (elmo-list-delete myself cc
+                            (lambda (elem list)
+                              (elmo-delete-if
+                               (lambda (item) (string= (downcase elem)
+                                                       (downcase item)))
+                               list))))
          ((elmo-list-member (append to cc) ; subscribed mailing-list
                             (mapcar 'downcase wl-subscribed-mailing-list))
-          (elmo-list-delete myself cc))
+          (elmo-list-delete myself cc
+                            (lambda (elem list)
+                              (elmo-delete-if
+                               (lambda (item) (string= (downcase elem)
+                                                       (downcase item)))
+                               list))))
          (t cc))))
 
 (defun wl-draft-forward (original-subject summary-buf)
            references (wl-delete-duplicates references)
            references (when references
                         (mapconcat 'identity references "\n\t"))))
+    (and wl-draft-use-frame
+        (get-buffer-window summary-buf)
+        (select-window (get-buffer-window summary-buf)))
     (wl-draft (list (cons 'To "")
                    (cons 'Subject
-                         (concat "Forward: " original-subject))
+                         (concat wl-forward-subject-prefix original-subject))
                    (cons 'References references))
              nil nil nil nil parent-folder))
   (goto-char (point-max))
       (substring subject (match-end 0))
     subject))
 
-(defun wl-draft-reply-list-symbol (with-arg)
-  "Return symbol `wl-draft-reply-*-argument-list' match condition.
-Check WITH-ARG and From: field."
-  (if (wl-address-user-mail-address-p (or (elmo-field-body "From") ""))
-      (if with-arg
-         'wl-draft-reply-myself-with-argument-list
-       'wl-draft-reply-myself-without-argument-list)
-    (if with-arg
-       'wl-draft-reply-with-argument-list
-      'wl-draft-reply-without-argument-list)))
+(defun wl-draft-self-reply-p ()
+  "Return t when From address in the current message is user's self one or not."
+  (wl-address-user-mail-address-p (or (elmo-field-body "From") "")))
 
 (defun wl-draft-reply (buf with-arg summary-buf)
   "Reply to BUF buffer message.
@@ -293,10 +324,12 @@ Reply to author if WITH-ARG is non-nil."
   (let (r-list
        to mail-followup-to cc subject in-reply-to references newsgroups
        to-alist cc-alist decoder parent-folder)
-    (set-buffer summary-buf)
-    (setq parent-folder (wl-summary-buffer-folder-name))
-    (set-buffer buf)
-    (setq r-list (symbol-value (wl-draft-reply-list-symbol with-arg)))
+    (when (buffer-live-p summary-buf)
+      (with-current-buffer summary-buf
+       (setq parent-folder (wl-summary-buffer-folder-name))))
+    (set-buffer (or buf mime-mother-buffer))
+    (setq r-list (if with-arg wl-draft-reply-with-argument-list
+                  wl-draft-reply-without-argument-list))
     (catch 'done
       (while r-list
        (when (let ((condition (car (car r-list))))
@@ -305,8 +338,15 @@ Reply to author if WITH-ARG is non-nil."
                      ((listp condition)
                       (catch 'done
                         (while condition
-                          (if (not (std11-field-body (car condition)))
-                              (throw 'done nil))
+                          (cond
+                           ((stringp (car condition))
+                            (or (std11-field-body (car condition))
+                                (throw 'done nil)))
+                           ((symbolp (car condition))
+                            (or (funcall (car condition))
+                                (throw 'done nil)))
+                           (t
+                            (debug)))
                           (setq condition (cdr condition)))
                         t))
                      ((symbolp condition)
@@ -339,8 +379,8 @@ Reply to author if WITH-ARG is non-nil."
                                               ","))))
          (throw 'done nil))
        (setq r-list (cdr r-list)))
-      (error "No match field: check your `%s'"
-            (symbol-name (wl-draft-reply-list-symbol with-arg))))
+      (error "No match field: check your `wl-draft-reply-%s-argument-list'"
+            (if with-arg "with" "without")))
     (setq subject (std11-field-body "Subject"))
     (setq to (wl-parse-addresses to)
          cc (wl-parse-addresses cc))
@@ -425,6 +465,9 @@ Reply to author if WITH-ARG is non-nil."
          references (wl-delete-duplicates references)
          references (if references
                         (mapconcat 'identity references "\n\t")))
+    (and wl-draft-use-frame
+        (get-buffer-window summary-buf)
+        (select-window (get-buffer-window summary-buf)))
     (wl-draft (list (cons 'To to)
                    (cons 'Cc cc)
                    (cons 'Newsgroups newsgroups)
@@ -433,8 +476,24 @@ Reply to author if WITH-ARG is non-nil."
                    (cons 'References references)
                    (cons 'Mail-Followup-To mail-followup-to))
              nil nil nil nil parent-folder)
-    (setq wl-draft-reply-buffer buf))
-  (run-hooks 'wl-reply-hook))
+    (setq wl-draft-reply-buffer buf)
+    (run-hooks 'wl-reply-hook)))
+
+(defun wl-draft-reply-position (position)
+  (cond ((eq position 'body)
+        (wl-draft-body-goto-top))
+       ((eq position 'bottom)
+        (wl-draft-body-goto-bottom))
+       ((eq position 'top)
+        (goto-char (point-min)))
+       ((and (stringp position)
+             (std11-field-body position))
+        (progn (mail-position-on-field position)
+               (wl-draft-beginning-of-line)))
+       ((listp position)
+        (while (car position)
+          (wl-draft-reply-position (car position))
+          (setq position (cdr position))))))
 
 (defun wl-draft-add-references ()
   (wl-draft-add-in-reply-to "References"))
@@ -495,15 +554,6 @@ Reply to author if WITH-ARG is non-nil."
     (when wl-highlight-body-too
       (wl-highlight-body-region beg (point-max)))))
 
-(defun wl-draft-confirm ()
-  "Confirm send message."
-  (interactive)
-  (y-or-n-p (format "Send current draft as %s? "
-                   (cond ((and (wl-message-mail-p) (wl-message-news-p))
-                          "Mail and News")
-                         ((wl-message-mail-p) "Mail")
-                         ((wl-message-news-p) "News")))))
-
 (defun wl-message-news-p ()
   "If exist valid Newsgroups field, return non-nil."
   (std11-field-body "Newsgroups"))
@@ -520,26 +570,17 @@ Reply to author if WITH-ARG is non-nil."
       (wl-message-field-exists-p "Resent-to")
       (wl-message-field-exists-p "Cc")
       (wl-message-field-exists-p "Bcc")
+      (wl-message-field-exists-p wl-draft-mime-bcc-field-name)
 ;;; This may be needed..
 ;;;   (wl-message-field-exists-p "Fcc")
       ))
 
-(defun wl-draft-open-file (&optional file)
-  "Open FILE for edit."
-  (interactive)
-;;;(interactive "*fFile to edit: ")
-  (wl-draft-edit-string (elmo-get-file-string
-                        (or file
-                            (read-file-name "File to edit: "
-                                            (or wl-temporary-file-directory
-                                                "~/"))))))
-
 (defun wl-draft-edit-string (string)
   (let ((cur-buf (current-buffer))
        (tmp-buf (get-buffer-create " *wl-draft-edit-string*"))
        to subject in-reply-to cc references newsgroups mail-followup-to
        content-type content-transfer-encoding from
-       body-beg buffer-read-only)
+       body-beg)
     (set-buffer tmp-buf)
     (erase-buffer)
     (insert string)
@@ -594,11 +635,12 @@ Reply to author if WITH-ARG is non-nil."
                   content-type content-transfer-encoding
                   (buffer-substring (point) (point-max))
                   'edit-again))
-      (and to (mail-position-on-field "To"))
-      (delete-other-windows)
-      (kill-buffer tmp-buf)))
-  (setq buffer-read-only nil) ;;??
-  (run-hooks 'wl-draft-reedit-hook))
+      (kill-buffer tmp-buf))
+    ;; Set cursor point to the top.
+    (goto-char (point-min))
+    (search-forward (concat mail-header-separator "\n") nil t)
+    (run-hooks 'wl-draft-reedit-hook)
+    (and to (mail-position-on-field "To"))))
 
 (defun wl-draft-insert-current-message (dummy)
   (interactive)
@@ -710,23 +752,23 @@ Reply to author if WITH-ARG is non-nil."
          (delete-frame)
        ;; hide draft window
        (or (one-window-p)
-           (delete-window)))
-      ;; stay folder window if required
-      (when wl-stay-folder-window
-       (if (setq fld-buf (get-buffer wl-folder-buffer-name))
-           (if (setq fld-win (get-buffer-window fld-buf))
-               (select-window fld-win)
-             (if wl-draft-resume-folder-window ;; resume folder window
-                 (switch-to-buffer fld-buf)))))
-      (if (buffer-live-p sum-buf)
-         (if (setq sum-win (get-buffer-window sum-buf t))
-             ;; if Summary is on the frame, select it.
-             (select-window sum-win)
-           ;; if summary is not on the frame, switch to it.
-           (if (and wl-stay-folder-window
-                    (or wl-draft-resume-folder-window fld-win))
-               (wl-folder-select-buffer sum-buf)
-             (switch-to-buffer sum-buf)))))))
+           (delete-window))
+       ;; stay folder window if required
+       (when wl-stay-folder-window
+         (if (setq fld-buf (get-buffer wl-folder-buffer-name))
+             (if (setq fld-win (get-buffer-window fld-buf))
+                 (select-window fld-win)
+               (if wl-draft-resume-folder-window ;; resume folder window
+                   (switch-to-buffer fld-buf)))))
+       (if (buffer-live-p sum-buf)
+           (if (setq sum-win (get-buffer-window sum-buf t))
+               ;; if Summary is on the frame, select it.
+               (select-window sum-win)
+             ;; if summary is not on the frame, switch to it.
+             (if (and wl-stay-folder-window
+                      (or wl-draft-resume-folder-window fld-win))
+                 (wl-folder-select-buffer sum-buf)
+               (switch-to-buffer sum-buf))))))))
 
 (defun wl-draft-delete (editing-buffer)
   "kill the editing draft buffer and delete the file corresponds to it."
@@ -774,6 +816,33 @@ text was killed."
   (kill-region b e)
   (insert wl-draft-elide-ellipsis))
 
+;; Imported from message.el.
+(defun wl-draft-beginning-of-line (&optional n)
+  "Move point to beginning of header value or to beginning of line."
+  (interactive "p")
+  (let ((zrs 'zmacs-region-stays))
+    (when (and (interactive-p) (boundp zrs))
+      (set zrs t)))
+  (if (wl-draft-point-in-header-p)
+      (let* ((here (point))
+            (bol (progn (beginning-of-line n) (point)))
+            (eol (line-end-position))
+            (eoh (and (looking-at "[^ \t]")
+                      (re-search-forward ": *" eol t))))
+       (if (and eoh (or (> here eoh) (= here bol)))
+           (goto-char eoh)
+         (goto-char bol)))
+    (beginning-of-line n)))
+
+(defun wl-draft-point-in-header-p ()
+  "Return t if point is in the header."
+  (save-excursion
+    (let ((p (point)))
+      (goto-char (point-min))
+      (not (re-search-forward
+           (concat "^" (regexp-quote mail-header-separator) "\n")
+           p t)))))
+
 ;; function for wl-sent-message-via
 
 (defmacro wl-draft-sent-message-p (type)
@@ -955,7 +1024,10 @@ from current buffer."
   "Get address list suitable for smtp RCPT TO:<address>.
 Group list content is removed if `wl-draft-remove-group-list-contents' is
 non-nil."
-  (let ((fields '("to" "cc" "bcc"))
+  (let ((fields (if (and wl-draft-doing-mime-bcc
+                        wl-draft-disable-bcc-for-mime-bcc)
+                   '("to" "cc")
+                 '("to" "cc" "bcc")))
        (resent-fields '("resent-to" "resent-cc" "resent-bcc"))
        (case-fold-search t)
        addrs recipients)
@@ -995,18 +1067,7 @@ non-nil."
                               "$\\|^$") nil t)
                      (point-marker)))
         (smtp-server
-         (or wl-smtp-posting-server
-             ;; Compatibility stuff for FLIM 1.12.5 or earlier.
-             ;; They don't accept a function as the value of `smtp-server'.
-             (if (functionp smtp-server)
-                 (funcall
-                  smtp-server
-                  sender
-                  ;; no harm..
-                  (let (wl-draft-remove-group-list-contents)
-                    (wl-draft-deduce-address-list
-                     (current-buffer) (point-min) delimline)))
-               (or smtp-server "localhost"))))
+         (or wl-smtp-posting-server smtp-server "localhost"))
         (smtp-service (or wl-smtp-posting-port smtp-service))
         (smtp-local-domain (or smtp-local-domain wl-local-domain))
         (id (std11-field-body "message-id"))
@@ -1042,7 +1103,7 @@ non-nil."
                     (wl-draft-write-sendlog 'failed 'smtp smtp-server
                                             recipients id)
                     (if (and (eq (car err) 'smtp-response-error)
-                             (/= (nth 1 err) 334))
+                             (= (nth 1 err) 535))
                         (elmo-remove-passwd
                          (wl-smtp-password-key
                           smtp-sasl-user-name
@@ -1083,7 +1144,7 @@ non-nil."
 
 (defun wl-draft-insert-required-fields (&optional force-msgid)
   "Insert Message-ID, Date, and From field.
-If FORCE-MSGID, ignore 'wl-insert-message-id'."
+If FORCE-MSGID, insert message-id regardless of `wl-insert-message-id'."
   ;; Insert Message-Id field...
   (goto-char (point-min))
   (when (and (or force-msgid
@@ -1123,7 +1184,7 @@ If FORCE-MSGID, ignore 'wl-insert-message-id'."
 
 (defun wl-draft-dispatch-message (&optional mes-string)
   "Send the message in the current buffer.  Not modified the header fields."
-  (let (delimline)
+  (let (delimline mime-bcc)
     (if (and wl-draft-verbose-send mes-string)
        (message mes-string))
     ;; get fcc folders.
@@ -1139,7 +1200,11 @@ If FORCE-MSGID, ignore 'wl-insert-message-id'."
              (if (or (not (or wl-draft-force-queuing
                               wl-draft-force-queuing-mail))
                      (memq 'mail wl-sent-message-queued))
-                 (funcall wl-draft-send-mail-function)
+                 (progn
+                   (setq mime-bcc (wl-draft-mime-bcc-field))
+                   (funcall wl-draft-send-mail-function)
+                   (when (not (zerop (length mime-bcc)))
+                     (wl-draft-do-mime-bcc mime-bcc)))
                (push 'mail wl-sent-message-queued)
                (wl-draft-set-sent-message 'mail 'unplugged)))
          (if (and (wl-message-news-p)
@@ -1151,14 +1216,14 @@ If FORCE-MSGID, ignore 'wl-insert-message-id'."
                  (funcall wl-draft-send-news-function)
                (push 'news wl-sent-message-queued)
                (wl-draft-set-sent-message 'news 'unplugged))))
-      ;;
       (let* ((status (wl-draft-sent-message-results))
             (unplugged-via (car status))
             (sent-via (nth 1 status)))
        ;; If one sent, process fcc folder.
        (if (and sent-via wl-draft-fcc-list)
            (progn
-             (wl-draft-do-fcc (wl-draft-get-header-delimiter) wl-draft-fcc-list)
+             (wl-draft-do-fcc (wl-draft-get-header-delimiter)
+                              wl-draft-fcc-list)
              (setq wl-draft-fcc-list nil)))
        (if wl-draft-use-cache
            (let ((id (std11-field-body "Message-ID"))
@@ -1218,7 +1283,17 @@ If KILL-WHEN-DONE is non-nil, current draft buffer is killed"
   ;; (wl-draft-config-exec)
   (run-hooks 'wl-draft-send-hook)
   (when (or (not wl-interactive-send)
-           (y-or-n-p "Do you really want to send current draft? "))
+           (let (result)
+             (wl-draft-preview-message)
+             (goto-char (point-min))
+             (condition-case nil
+                 (setq result
+                       (y-or-n-p "Do you really want to send current draft? "))
+               (quit
+                (mime-preview-quit)
+                (signal 'quit nil)))
+             (mime-preview-quit)
+             result))
     (let ((send-mail-function 'wl-draft-raw-send)
          (editing-buffer (current-buffer))
          (sending-buffer (wl-draft-generate-clone-buffer
@@ -1235,12 +1310,13 @@ If KILL-WHEN-DONE is non-nil, current draft buffer is killed"
            (expand-abbrev) ; for mail-abbrevs
            (let ((mime-header-encode-method-alist
                   (append
-                   '((wl-draft-eword-encode-address-list 
+                   '((wl-draft-eword-encode-address-list
                       .  (To Cc Bcc Resent-To Resent-Cc Bcc Resent-Bcc)))
                    (if (boundp 'mime-header-encode-method-alist)
                        (symbol-value 'mime-header-encode-method-alist)))))
              (run-hooks 'mail-send-hook) ; translate buffer
              )
+           ;;
            (if wl-draft-verbose-send
                (message (or mes-string "Sending...")))
            (funcall wl-draft-send-function editing-buffer kill-when-done)
@@ -1251,9 +1327,6 @@ If KILL-WHEN-DONE is non-nil, current draft buffer is killed"
                         (cdr (car mail-send-actions)))
                (error))
              (setq mail-send-actions (cdr mail-send-actions)))
-;;         (if (or (eq major-mode 'wl-draft-mode)
-;;                 (eq major-mode 'mail-mode))
-;;             (local-set-key "\C-c\C-s" 'wl-draft-send)) ; override
            (if wl-draft-verbose-send
                (message (concat (or wl-draft-verbose-msg
                                     mes-string "Sending...")
@@ -1262,9 +1335,48 @@ If KILL-WHEN-DONE is non-nil, current draft buffer is killed"
        (and (buffer-live-p sending-buffer)
             (kill-buffer sending-buffer))))))
 
+(defun wl-draft-mime-bcc-field ()
+  "Return the MIME-Bcc field body. The field is deleted."
+  (prog1 (std11-field-body wl-draft-mime-bcc-field-name)
+    (wl-draft-delete-field wl-draft-mime-bcc-field-name)))
+
+(defun wl-draft-do-mime-bcc (field-body)
+  "Send MIME-Bcc (Encapsulated blind carbon copy)."
+  (let ((orig-from (mime-decode-field-body (std11-field-body "from")
+                                          'From))
+       (orig-subj (mime-decode-field-body (or (std11-field-body "subject")
+                                              "")
+                                          'Subject))
+       (recipients (wl-parse-addresses field-body))
+       (draft-buffer (current-buffer))
+       wl-draft-use-frame)
+    (save-window-excursion
+      (when (and (not wl-draft-doing-mime-bcc) ; To avoid infinite loop.
+                (not (zerop (length field-body))))
+       (let ((wl-draft-doing-mime-bcc t))
+         (dolist (recipient recipients)
+           (wl-draft-create-buffer)
+           (wl-draft-create-contents
+            (append `((From . ,orig-from)
+                      (To . ,recipient)
+                      (Subject . ,(concat "A blind carbon copy ("
+                                          orig-subj
+                                          ")")))
+                    (wl-draft-default-headers)))
+           (wl-draft-insert-mail-header-separator)
+           (wl-draft-prepare-edit)
+           (goto-char (point-max))
+           (insert (or wl-draft-mime-bcc-body
+                       "This is a blind carbon copy.")
+                   "\n")
+           (mime-edit-insert-tag "message" "rfc822")
+           (insert-buffer draft-buffer)
+           (let (wl-interactive-send)
+             (wl-draft-send 'kill-when-done))))))))
+
+;; Derived from `message-save-drafts' in T-gnus.
 (defun wl-draft-save ()
-  "Save current draft.
-Derived from `message-save-drafts' in T-gnus."
+  "Save current draft."
   (interactive)
   (if (buffer-modified-p)
       (progn
@@ -1365,26 +1477,34 @@ Derived from `message-save-drafts' in T-gnus."
            (point-max)))))))
 
 (defun wl-draft-get-fcc-list (header-end)
-  (let (fcc-list
-       (case-fold-search t))
-    (or (markerp header-end) (error "HEADER-END must be a marker"))
-    (save-excursion
-      (goto-char (point-min))
-      (while (re-search-forward "^Fcc:[ \t]*" header-end t)
-       (setq fcc-list
-             (cons (buffer-substring-no-properties
-                    (point)
-                    (progn
-                      (end-of-line)
-                      (skip-chars-backward " \t")
-                      (point)))
-                   fcc-list))
-       (save-match-data
-         (wl-folder-confirm-existence
-          (wl-folder-get-elmo-folder (eword-decode-string (car fcc-list)))))
-       (delete-region (match-beginning 0)
-                      (progn (forward-line 1) (point)))))
-    fcc-list))
+  (if (and wl-draft-doing-mime-bcc
+          wl-draft-disable-fcc-for-mime-bcc)
+      (progn
+       (wl-draft-delete-field "fcc")
+       nil)
+    (let (fcc-list
+         (case-fold-search t))
+      (or (markerp header-end) (error "HEADER-END must be a marker"))
+      (save-excursion
+       (goto-char (point-min))
+       (while (re-search-forward "^Fcc:[ \t]*" header-end t)
+         (save-match-data
+           (setq fcc-list
+                 (append fcc-list
+                         (split-string
+                          (buffer-substring-no-properties
+                           (point)
+                           (progn
+                             (end-of-line)
+                             (skip-chars-backward " \t")
+                             (point)))
+                          ",[ \t]*")))
+           (dolist (folder fcc-list)
+             (wl-folder-confirm-existence
+              (wl-folder-get-elmo-folder (eword-decode-string folder)))))
+         (delete-region (match-beginning 0)
+                        (progn (forward-line 1) (point)))))
+      fcc-list)))
 
 (defun wl-draft-do-fcc (header-end &optional fcc-list)
   (let ((send-mail-buffer (current-buffer))
@@ -1442,10 +1562,6 @@ Derived from `message-save-drafts' in T-gnus."
                nil
              (if (re-search-forward ":" pos t) nil t)))))))
 
-(defun wl-draft-random-alphabet ()
-  (let ((alphabet '(?A ?B ?C ?D ?E ?F ?G ?H ?I ?J ?K ?L ?M ?N ?O ?P ?Q ?R ?S ?T ?U ?V ?W ?X ?Y ?Z)))
-    (nth (abs (% (random) 26)) alphabet)))
-
 ;;;;;;;;;;;;;;;;
 ;;;###autoload
 (defun wl-draft (&optional header-alist
@@ -1466,13 +1582,7 @@ Derived from `message-save-drafts' in T-gnus."
 
   (let (buf-name header-alist-internal)
     (setq buf-name
-         (wl-draft-create-buffer
-          (or
-           (eq this-command 'wl-draft)
-           (eq this-command 'wl-summary-write)
-           (eq this-command 'wl-summary-write-current-folder)
-           (eq this-command 'wl-folder-write-current-folder))
-          parent-folder))
+         (wl-draft-create-buffer parent-folder))
 
     (unless (cdr (assq 'From header-alist))
       (setq header-alist
@@ -1495,7 +1605,7 @@ Derived from `message-save-drafts' in T-gnus."
     (setq header-alist (append header-alist
                               (wl-draft-default-headers)
                               wl-draft-additional-header-alist
-                              (if body (list "" body))))
+                              (if body (list "" (cons 'Body body)))))
     (wl-draft-create-contents header-alist)
     (if edit-again
        (wl-draft-decode-body
@@ -1514,11 +1624,16 @@ Derived from `message-save-drafts' in T-gnus."
           (goto-char (point-max))))
     buf-name))
 
-(defun wl-draft-create-buffer (&optional full parent-folder)
+(defun wl-draft-create-buffer (&optional parent-folder)
   (let* ((draft-folder (wl-folder-get-elmo-folder wl-draft-folder))
         (parent-folder (or parent-folder (wl-summary-buffer-folder-name)))
         (summary-buf (wl-summary-get-buffer parent-folder))
-       buf-name file-name num change-major-mode-hook)
+        (reply-or-forward
+         (or (eq this-command 'wl-summary-reply)
+             (eq this-command 'wl-summary-forward)
+             (eq this-command 'wl-summary-target-mark-forward)
+             (eq this-command 'wl-summary-target-mark-reply-with-citation)))
+        buf-name file-name num change-major-mode-hook)
     (if (not (elmo-folder-message-file-p draft-folder))
        (error "%s folder cannot be used for draft folder" wl-draft-folder))
     (setq num (elmo-max-of-list
@@ -1532,16 +1647,43 @@ Derived from `message-save-drafts' in T-gnus."
                          (elmo-message-file-name
                           (wl-folder-get-elmo-folder wl-draft-folder)
                           num))))
+    ;; switch-buffer according to draft buffer style.
     (if wl-draft-use-frame
        (switch-to-buffer-other-frame buf-name)
-      (switch-to-buffer buf-name))
+      (if reply-or-forward
+         (case wl-draft-reply-buffer-style
+           (split
+            (split-window-vertically)
+            (other-window 1)
+            (switch-to-buffer buf-name))
+           (keep
+            (switch-to-buffer buf-name))
+           (full
+            (delete-other-windows)
+            (switch-to-buffer buf-name))
+           (t
+            (if (functionp wl-draft-reply-buffer-style)
+                (funcall wl-draft-reply-buffer-style buf-name)
+              (error "Invalid value for wl-draft-reply-buffer-style"))))
+       (case wl-draft-buffer-style
+         (split
+          (when (eq major-mode 'wl-summary-mode)
+            (wl-summary-toggle-disp-msg 'off))
+          (split-window-vertically)
+          (other-window 1)
+          (switch-to-buffer buf-name))
+         (keep
+          (switch-to-buffer buf-name))
+         (full
+          (delete-other-windows)
+          (switch-to-buffer buf-name))
+         (t (if (functionp wl-draft-buffer-style)
+                (funcall wl-draft-buffer-style buf-name)
+              (error "Invalid value for wl-draft-buffer-style"))))))
     (set-buffer buf-name)
     (if (not (string-match (regexp-quote wl-draft-folder)
                           (buffer-name)))
        (rename-buffer (concat wl-draft-folder "/" (int-to-string num))))
-    (if (or (eq wl-draft-reply-buffer-style 'full)
-           full)
-       (delete-other-windows))
     (auto-save-mode -1)
     (wl-draft-mode)
     (make-local-variable 'truncate-partial-width-windows)
@@ -1551,7 +1693,7 @@ Derived from `message-save-drafts' in T-gnus."
     (setq wl-sent-message-queued nil)
     (setq wl-draft-buffer-file-name file-name)
     (setq wl-draft-config-exec-flag t)
-    (setq wl-draft-parent-folder parent-folder)
+    (setq wl-draft-parent-folder (or parent-folder ""))
     (or (eq this-command 'wl-folder-write-current-folder)
        (setq wl-draft-buffer-cur-summary-buffer summary-buf))
     buf-name))
@@ -1584,6 +1726,8 @@ Derived from `message-save-drafts' in T-gnus."
        (cond
         ((symbolp field)
          (cond
+          ((eq field 'Body) ; body
+           (insert value))
           ((stringp value) (insert (symbol-name field) ": " value "\n"))
           ((functionp value)
            (let ((value-return (funcall value)))
@@ -1604,7 +1748,8 @@ Derived from `message-save-drafts' in T-gnus."
     (error "wl-draft-create-header must be use in wl-draft-mode."))
   (let (change-major-mode-hook)
     (wl-draft-editor-mode)
-    (add-hook 'local-write-file-hooks 'wl-draft-save)
+    (when wl-draft-write-file-function
+      (add-hook 'local-write-file-hooks wl-draft-write-file-function))
     (wl-draft-overload-functions)
     (wl-highlight-headers 'for-draft)
     (wl-draft-save)
@@ -1702,7 +1847,8 @@ Derived from `message-save-drafts' in T-gnus."
                       (progn
                         (insert mail-header-separator "\n")
                         (1- (point)))
-                      'category 'mail-header-separator)))
+                      'category 'mail-header-separator)
+    (point)))
 
 ;;;;;;;;;;;;;;;;
 
@@ -1715,12 +1861,27 @@ Derived from `message-save-drafts' in T-gnus."
        (elmo-nntp-default-port
         (or wl-nntp-posting-port elmo-nntp-default-port))
        (elmo-nntp-default-stream-type
-        (or wl-nntp-posting-stream-type elmo-nntp-default-stream-type)))
+        (or wl-nntp-posting-stream-type elmo-nntp-default-stream-type))
+       (elmo-nntp-default-function wl-nntp-posting-function)
+       condition)
+    (if (setq condition (cdr (elmo-string-matched-assoc
+                             (std11-field-body "Newsgroups")
+                             wl-nntp-posting-config-alist)))
+       (if (stringp condition)
+           (setq elmo-nntp-default-server condition)
+         (while (car condition)
+           (set (intern (format "elmo-nntp-default-%s"
+                                (symbol-name (caar condition))))
+                (cdar condition))
+           (setq condition (cdr condition)))))
+    (unless elmo-nntp-default-function
+      (error "wl-draft-nntp-send: posting-function is nil."))
     (if (not (elmo-plugged-p elmo-nntp-default-server elmo-nntp-default-port))
        (wl-draft-set-sent-message 'news 'unplugged
                                   (cons elmo-nntp-default-server
                                         elmo-nntp-default-port))
-      (elmo-nntp-post elmo-nntp-default-server (current-buffer))
+      (funcall elmo-nntp-default-function
+              elmo-nntp-default-server (current-buffer))
       (wl-draft-set-sent-message 'news 'sent)
       (wl-draft-write-sendlog 'ok 'nntp elmo-nntp-default-server
                              (std11-field-body "Newsgroups")
@@ -1745,10 +1906,15 @@ Derived from `message-save-drafts' in T-gnus."
        (setq local-variables (cdr local-variables)))
       (current-buffer))))
 
+(defun wl-draft-remove-text-plain-tag ()
+  "Remove text/plain tag of mime-edit."
+  (if (looking-at "^--\\[\\[text/plain\\]\\]$")
+      (delete-region (point-at-bol)(1+ (point-at-eol)))))
+
 (defun wl-draft-reedit (number)
   (let ((draft-folder (wl-folder-get-elmo-folder wl-draft-folder))
        (wl-draft-reedit t)
-       buffer file-name change-major-mode-hook)
+       buffer file-name change-major-mode-hook body-top)
     (setq file-name (elmo-message-file-name draft-folder number))
     (unless (file-exists-p file-name)
       (error "File %s does not exist" file-name))
@@ -1761,15 +1927,28 @@ Derived from `message-save-drafts' in T-gnus."
            (switch-to-buffer buffer))
          (set-buffer buffer))
       (setq buffer (get-buffer-create (number-to-string number)))
+      ;; switch-buffer according to draft buffer style.
       (if wl-draft-use-frame
          (switch-to-buffer-other-frame buffer)
-       (switch-to-buffer buffer))
+       (case wl-draft-buffer-style
+         (split
+          (split-window-vertically)
+          (other-window 1)
+          (switch-to-buffer buffer))
+         (keep
+          (switch-to-buffer buffer))
+         (full
+          (delete-other-windows)
+          (switch-to-buffer buffer))
+         (t (if (functionp wl-draft-buffer-style)
+                (funcall wl-draft-buffer-style buffer)
+              (error "Invalid value for wl-draft-buffer-style")))))
       (set-buffer buffer)
       (insert-file-contents-as-binary file-name)
       (let((mime-edit-again-ignored-field-regexp
            "^\\(Content-.*\\|Mime-Version\\):"))
        (wl-draft-decode-message-in-buffer))
-      (wl-draft-insert-mail-header-separator)
+      (setq body-top (wl-draft-insert-mail-header-separator))
       (if (not (string-match (regexp-quote wl-draft-folder)
                             (buffer-name)))
          (rename-buffer (concat wl-draft-folder "/" (buffer-name))))
@@ -1786,8 +1965,10 @@ Derived from `message-save-drafts' in T-gnus."
       (goto-char (point-min))
       (wl-draft-overload-functions)
       (wl-draft-editor-mode)
-      (add-hook 'local-write-file-hooks 'wl-draft-save)
+      (when wl-draft-write-file-function
+       (add-hook 'local-write-file-hooks wl-draft-write-file-function))
       (wl-highlight-headers 'for-draft)
+      (goto-char body-top)
       (run-hooks 'wl-draft-reedit-hook)
       (goto-char (point-max))
       buffer)))
@@ -1809,34 +1990,41 @@ Derived from `message-save-drafts' in T-gnus."
           (beginning-of-line)
         (goto-char (point-max))))))
 
+(defsubst wl-draft-config-sub-eval-insert (content &optional newline)
+  (let (content-value)
+    (when (and content
+              (stringp (setq content-value (eval content))))
+      (insert content-value)
+      (if newline (insert "\n")))))
+
 (defun wl-draft-config-sub-body (content)
   (wl-draft-body-goto-top)
   (delete-region (point) (point-max))
-  (if content (insert (eval content))))
+  (wl-draft-config-sub-eval-insert content))
 
 (defun wl-draft-config-sub-top (content)
   (wl-draft-body-goto-top)
-  (if content (insert (eval content))))
+  (wl-draft-config-sub-eval-insert content))
 
 (defun wl-draft-config-sub-bottom (content)
   (wl-draft-body-goto-bottom)
-  (if content (insert (eval content))))
+  (wl-draft-config-sub-eval-insert content))
 
 (defun wl-draft-config-sub-header (content)
   (wl-draft-config-body-goto-header)
-  (if content (insert (concat (eval content) "\n"))))
+  (wl-draft-config-sub-eval-insert content 'newline))
 
 (defun wl-draft-config-sub-header-top (content)
   (goto-char (point-min))
-  (if content (insert (concat (eval content) "\n"))))
+  (wl-draft-config-sub-eval-insert content 'newline))
 
 (defun wl-draft-config-sub-part-top (content)
   (goto-char (mime-edit-content-beginning))
-  (if content (insert (concat (eval content) "\n"))))
+  (wl-draft-config-sub-eval-insert content 'newline))
 
 (defun wl-draft-config-sub-part-bottom (content)
   (goto-char (mime-edit-content-end))
-  (if content (insert (concat (eval content) "\n"))))
+  (wl-draft-config-sub-eval-insert content 'newline))
 
 (defsubst wl-draft-config-sub-file (content)
   (let ((coding-system-for-read wl-cs-autoconv)
@@ -1921,7 +2109,8 @@ Derived from `message-save-drafts' in T-gnus."
          (wl-draft-config-exec config-alist reply-buf)))))
 
 (defun wl-draft-config-exec (&optional config-alist reply-buf)
-  "Change headers in draft sending time."
+  "Change headers according to the value of `wl-draft-config-alist'.
+Automatically applied in draft sending time."
   (interactive)
   (let ((case-fold-search t)
        (alist (or config-alist wl-draft-config-alist))
@@ -2193,11 +2382,13 @@ Derived from `message-save-drafts' in T-gnus."
 
 (defun wl-draft-highlight-and-recenter (&optional n)
   (interactive "P")
-  (if wl-highlight-body-too
-      (let ((beg (point-min))
-           (end (point-max)))
-       (put-text-property beg end 'face nil)
-       (wl-highlight-message beg end t)))
+  (when wl-highlight-body-too
+    (let ((modified (buffer-modified-p)))
+      (unwind-protect
+         (progn
+           (put-text-property (point-min) (point-max) 'face nil)
+           (wl-highlight-message (point-min) (point-max) t))
+       (set-buffer-modified-p modified))))
   (recenter n))
 
 ;;;; user-agent support by Sen Nagata
@@ -2249,16 +2440,13 @@ been implemented yet.  Partial support for SWITCH-FUNCTION now supported."
 
   (unless (featurep 'wl)
     (require 'wl))
+  (or switch-function
+      (setq switch-function 'keep))
   ;; protect these -- to and subject get bound at some point, so it looks
   ;; to be necessary to protect the values used w/in
   (let ((wl-user-agent-headers-and-body-alist other-headers)
        (wl-draft-use-frame (eq switch-function 'switch-to-buffer-other-frame))
-       (wl-draft-reply-buffer-style 'split))
-    (when (eq switch-function 'switch-to-buffer-other-window)
-      (when (one-window-p t)
-       (if (window-minibuffer-p) (other-window 1))
-       (split-window))
-      (other-window 1))
+       (wl-draft-buffer-style switch-function))
     (if to
        (if (wl-string-match-assoc "to" wl-user-agent-headers-and-body-alist
                                   'ignore-case)