wl/wl-summary.el

   1 ;;; wl-summary.el --- Summary mode for Wanderlust.
   2
   3 ;; Copyright (C) 1998,1999,2000 Yuuichi Teranishi <teranisi@gohome.org>
   4 ;; Copyright (C) 1998,1999,2000 Masahiro MURATA <muse@ba2.so-net.ne.jp>
   5 ;; Copyright (C) 1999,2000      TSUMURA Tomoaki <tsumura@kuis.kyoto-u.ac.jp>
   6 ;; Copyright (C) 1999,2000      Kenichi OKADA <okada@opaopa.org>
   7
   8 ;; Author: Yuuichi Teranishi <teranisi@gohome.org>
   9 ;;      Masahiro MURATA <muse@ba2.so-net.ne.jp>
  10 ;;      TSUMURA Tomoaki <tsumura@kuis.kyoto-u.ac.jp>
  11 ;;      Kenichi OKADA <okada@opaopa.org>
  12 ;; Keywords: mail, net news
  13
  14 ;; This file is part of Wanderlust (Yet Another Message Interface on Emacsen).
  15
  16 ;; This program is free software; you can redistribute it and/or modify
  17 ;; it under the terms of the GNU General Public License as published by
  18 ;; the Free Software Foundation; either version 2, or (at your option)
  19 ;; any later version.
  20 ;;
  21 ;; This program is distributed in the hope that it will be useful,
  22 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  23 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24 ;; GNU General Public License for more details.
  25 ;;
  26 ;; You should have received a copy of the GNU General Public License
  27 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  28 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  29 ;; Boston, MA 02111-1307, USA.
  30 ;;
  31
  32 ;;; Commentary:
  33 ;;
  34
  35 ;;; Code:
  36 ;;
  37
  38 (require 'elmo)
  39 (require 'elmo-multi)
  40 (require 'wl-message)
  41 (require 'wl-vars)
  42 (require 'wl-highlight)
  43 (require 'wl-refile)
  44 (require 'wl-util)
  45 (condition-case nil (require 'timezone) (error nil))
  46 (condition-case nil (require 'easymenu) (error nil))
  47 (require 'elmo-date)
  48 (condition-case nil (require 'ps-print) (error nil))
  49
  50 (eval-when-compile
  51   (require 'cl)
  52   (condition-case () (require 'timer) (error nil))
  53   (defalias-maybe 'ps-print-buffer-with-faces 'ignore)
  54   (defalias-maybe 'elmo-database-msgid-put 'ignore)
  55   (defalias-maybe 'elmo-database-close 'ignore)
  56   (defalias-maybe 'elmo-database-msgid-get 'ignore)
  57   (defalias-maybe 'run-with-idle-timer 'ignore)
  58   (defalias-maybe 'ps-print-preprint 'ignore))
  59
  60 (defvar dragdrop-drop-functions)
  61 (defvar scrollbar-height)
  62 (defvar mail-reply-buffer)
  63
  64 (defvar wl-summary-buffer-name "Summary")
  65 (defvar wl-summary-mode-map nil)
  66 (defvar wl-current-summary-buffer nil)
  67
  68 (defvar wl-summary-buffer-elmo-folder nil)
  69
  70 (defmacro wl-summary-buffer-folder-name ()
  71   (` (and wl-summary-buffer-elmo-folder
  72           (elmo-folder-name-internal wl-summary-buffer-elmo-folder))))
  73
  74 (defvar wl-summary-buffer-disp-msg    nil)
  75 (defvar wl-summary-buffer-disp-folder nil)
  76 (defvar wl-summary-buffer-temp-mark-list nil)
  77 (defvar wl-summary-buffer-last-displayed-msg nil)
  78 (defvar wl-summary-buffer-current-msg nil)
  79 (defvar wl-summary-buffer-unread-count 0)
  80 (defvar wl-summary-buffer-new-count    0)
  81 (defvar wl-summary-buffer-answered-count 0)
  82 (defvar wl-summary-buffer-mime-charset  nil)
  83 (defvar wl-summary-buffer-weekday-name-lang  nil)
  84 (defvar wl-summary-buffer-thread-indent-set-alist  nil)
  85 (defvar wl-summary-buffer-view nil)
  86 (defvar wl-summary-buffer-message-modified nil)
  87 (defvar wl-summary-buffer-thread-modified nil)
  88
  89 (defvar wl-summary-buffer-number-column nil)
  90 (defvar wl-summary-buffer-temp-mark-column nil)
  91 (defvar wl-summary-buffer-persistent-mark-column nil)
  92
  93 (defvar wl-summary-buffer-unsync-mark-number-list nil)
  94
  95 (defvar wl-summary-buffer-persistent nil)
  96 (defvar wl-summary-buffer-thread-nodes nil)
  97 (defvar wl-summary-buffer-target-mark-list nil)
  98 (defvar wl-summary-buffer-prev-refile-destination nil)
  99 (defvar wl-summary-buffer-saved-message nil)
 100 (defvar wl-summary-buffer-prev-folder-function nil)
 101 (defvar wl-summary-buffer-next-folder-function nil)
 102 (defvar wl-summary-buffer-exit-function nil)
 103 (defvar wl-summary-buffer-next-message-function nil)
 104 (defvar wl-summary-buffer-window-scroll-functions nil)
 105 (defvar wl-summary-buffer-number-list nil)
 106 (defvar wl-summary-buffer-folder-name nil)
 107 (defvar wl-summary-buffer-line-formatter nil)
 108 (defvar wl-summary-buffer-line-format nil)
 109 (defvar wl-summary-buffer-mode-line-formatter nil)
 110 (defvar wl-summary-buffer-mode-line nil)
 111
 112 (defvar wl-thread-indent-level-internal nil)
 113 (defvar wl-thread-have-younger-brother-str-internal nil)
 114 (defvar wl-thread-youngest-child-str-internal nil)
 115 (defvar wl-thread-vertical-str-internal nil)
 116 (defvar wl-thread-horizontal-str-internal nil)
 117 (defvar wl-thread-space-str-internal nil)
 118 (defvar wl-summary-last-visited-folder nil)
 119 (defvar wl-read-folder-history nil)
 120 (defvar wl-summary-scored nil)
 121 (defvar wl-crosspost-alist-modified nil)
 122 (defvar wl-summary-alike-hashtb nil)
 123 (defvar wl-summary-search-buf-name " *wl-search-subject*")
 124 (defvar wl-summary-delayed-update nil)
 125 (defvar wl-summary-search-buf-folder-name nil)
 126
 127 (defvar wl-summary-get-petname-function 'wl-address-get-petname-1)
 128
 129 (defvar wl-summary-shell-command-last "")
 130
 131 (defvar wl-ps-preprint-hook nil)
 132 (defvar wl-ps-print-hook nil)
 133
 134 (defvar wl-thread-saved-entity-hashtb-internal nil)
 135
 136 (make-variable-buffer-local 'wl-summary-buffer-elmo-folder)
 137 (make-variable-buffer-local 'wl-summary-search-buf-folder-name)
 138 (make-variable-buffer-local 'wl-summary-buffer-disp-msg)
 139 (make-variable-buffer-local 'wl-summary-buffer-disp-folder)
 140 (make-variable-buffer-local 'wl-summary-buffer-target-mark-list)
 141 (make-variable-buffer-local 'wl-summary-buffer-temp-mark-list)
 142 (make-variable-buffer-local 'wl-summary-buffer-last-displayed-msg)
 143 (make-variable-buffer-local 'wl-summary-buffer-unread-count)
 144 (make-variable-buffer-local 'wl-summary-buffer-new-count)
 145 (make-variable-buffer-local 'wl-summary-buffer-answered-count)
 146 (make-variable-buffer-local 'wl-summary-buffer-mime-charset)
 147 (make-variable-buffer-local 'wl-summary-buffer-weekday-name-lang)
 148 (make-variable-buffer-local 'wl-summary-buffer-thread-indent-set)
 149 (make-variable-buffer-local 'wl-summary-buffer-view)
 150 (make-variable-buffer-local 'wl-summary-buffer-message-modified)
 151 (make-variable-buffer-local 'wl-summary-buffer-thread-modified)
 152 (make-variable-buffer-local 'wl-summary-buffer-number-column)
 153 (make-variable-buffer-local 'wl-summary-buffer-temp-mark-column)
 154 (make-variable-buffer-local 'wl-summary-buffer-persistent-mark-column)
 155 (make-variable-buffer-local 'wl-summary-buffer-unsync-mark-number-list)
 156 (make-variable-buffer-local 'wl-summary-buffer-persistent)
 157 (make-variable-buffer-local 'wl-summary-buffer-thread-nodes)
 158 (make-variable-buffer-local 'wl-summary-buffer-prev-refile-destination)
 159 (make-variable-buffer-local 'wl-summary-buffer-saved-message)
 160 (make-variable-buffer-local 'wl-summary-scored)
 161 (make-variable-buffer-local 'wl-summary-default-score)
 162 (make-variable-buffer-local 'wl-summary-move-direction-downward)
 163 (make-variable-buffer-local 'wl-summary-important-above)
 164 (make-variable-buffer-local 'wl-summary-target-above)
 165 (make-variable-buffer-local 'wl-summary-mark-below)
 166 (make-variable-buffer-local 'wl-summary-expunge-below)
 167 (make-variable-buffer-local 'wl-thread-indent-level-internal)
 168 (make-variable-buffer-local 'wl-thread-have-younger-brother-str-internal)
 169 (make-variable-buffer-local 'wl-thread-youngest-child-str-internal)
 170 (make-variable-buffer-local 'wl-thread-vertical-str-internal)
 171 (make-variable-buffer-local 'wl-thread-horizontal-str-internal)
 172 (make-variable-buffer-local 'wl-thread-space-str-internal)
 173 (make-variable-buffer-local 'wl-summary-buffer-prev-folder-function)
 174 (make-variable-buffer-local 'wl-summary-buffer-next-folder-function)
 175 (make-variable-buffer-local 'wl-summary-buffer-exit-function)
 176 (make-variable-buffer-local 'wl-summary-buffer-next-message-function)
 177 (make-variable-buffer-local 'wl-summary-buffer-window-scroll-functions)
 178 (make-variable-buffer-local 'wl-summary-buffer-number-list)
 179 (make-variable-buffer-local 'wl-summary-buffer-folder-name)
 180 (make-variable-buffer-local 'wl-summary-buffer-line-formatter)
 181 (make-variable-buffer-local 'wl-summary-buffer-line-format)
 182 (make-variable-buffer-local 'wl-summary-buffer-mode-line-formatter)
 183 (make-variable-buffer-local 'wl-summary-buffer-mode-line)
 184
 185 (defvar wl-datevec)
 186 (defvar wl-thr-indent-string)
 187 (defvar wl-thr-children-number)
 188 (defvar wl-thr-linked)
 189 (defvar wl-message-entity)
 190 (defvar wl-parent-message-entity)
 191 (defvar wl-temp-mark)
 192 (defvar wl-persistent-mark)
 193
 194 (defmacro wl-summary-sticky-buffer-name (name)
 195   (` (concat wl-summary-buffer-name ":" (, name))))
 196
 197 (defun wl-summary-default-subject (subject-string)
 198   (if (string-match "^[ \t]*\\[[^:]+[,: ][0-9]+\\][ \t]*" subject-string)
 199       (substring subject-string (match-end 0))
 200     subject-string))
 201
 202 (defun wl-summary-default-from (from)
 203   "Instance of `wl-summary-from-function'.
 204 Ordinarily returns the sender name. Returns recipient names if (1)
 205 summary's folder name matches with `wl-summary-showto-folder-regexp'
 206 and (2) sender address is yours.
 207
 208 See also variable `wl-use-petname'."
 209   (let (retval tos ng)
 210     (unless
 211         (and (eq major-mode 'wl-summary-mode)
 212              (stringp wl-summary-showto-folder-regexp)
 213              (string-match wl-summary-showto-folder-regexp
 214                            (wl-summary-buffer-folder-name))
 215              (wl-address-user-mail-address-p from)
 216              (cond
 217               ((and (setq tos (elmo-message-entity-field
 218                                wl-message-entity 'to t))
 219                     (not (string= "" tos)))
 220                (setq retval
 221                      (concat "To:"
 222                              (mapconcat
 223                               (function
 224                                (lambda (to)
 225                                  (eword-decode-string
 226                                   (if wl-use-petname
 227                                       (or
 228                                        (funcall
 229                                         wl-summary-get-petname-function to)
 230                                        (car
 231                                         (std11-extract-address-components to))
 232                                        to)
 233                                     to))))
 234                               (wl-parse-addresses tos)
 235                               ","))))
 236               ((setq ng (elmo-message-entity-field
 237                          wl-message-entity 'newsgroups))
 238                (setq retval (concat "Ng:" ng)))))
 239       (if wl-use-petname
 240           (setq retval (or (funcall wl-summary-get-petname-function from)
 241                            (car (std11-extract-address-components from))
 242                            from))
 243         (setq retval from)))
 244     retval))
 245
 246 (defun wl-summary-simple-from (string)
 247   (if wl-use-petname
 248       (or (funcall wl-summary-get-petname-function string)
 249           (car (std11-extract-address-components string))
 250           string)
 251     string))
 252
 253 (defvar wl-summary-sort-specs '(number date subject from list-info))
 254 (defvar wl-summary-default-sort-spec 'date)
 255
 256 (defvar wl-summary-mode-menu-spec
 257   '("Summary"
 258     ["Read" wl-summary-read t]
 259     ["Prev page" wl-summary-prev-page t]
 260     ["Next page" wl-summary-next-page t]
 261     ["Top"       wl-summary-display-top t]
 262     ["Bottom"    wl-summary-display-bottom t]
 263     ["Prev"      wl-summary-prev t]
 264     ["Next"      wl-summary-next t]
 265     ["Up"        wl-summary-up t]
 266     ["Down"      wl-summary-down t]
 267     ["Parent message" wl-summary-jump-to-parent-message t]
 268     "----"
 269     ["Sync"            wl-summary-sync t]
 270     ["Execute"         wl-summary-exec t]
 271     ["Go to other folder" wl-summary-goto-folder t]
 272     ["Pick" wl-summary-pick t]
 273     ["Mark as read all" wl-summary-mark-as-read-all t]
 274     ["Unmark all"      wl-summary-unmark-all t]
 275     ["Toggle display message" wl-summary-toggle-disp-msg t]
 276     ["Display folder" wl-summary-toggle-disp-folder t]
 277     ["Toggle threading" wl-summary-toggle-thread t]
 278     ["Stick" wl-summary-stick t]
 279     ("Sort"
 280      ["By Number" wl-summary-sort-by-number t]
 281      ["By Date" wl-summary-sort-by-date t]
 282      ["By From" wl-summary-sort-by-from t]
 283      ["By Subject" wl-summary-sort-by-subject t]
 284      ["By List Info" wl-summary-sort-by-list-info t])
 285     "----"
 286     ("Message Operation"
 287      ["Mark as read"    wl-summary-mark-as-read t]
 288      ["Mark as important" wl-summary-mark-as-important t]
 289      ["Mark as unread"   wl-summary-mark-as-unread t]
 290      ["Mark as answered" wl-summary-mark-as-answered t]
 291      ["Set dispose mark" wl-summary-dispose t]
 292      ["Set refile mark" wl-summary-refile t]
 293      ["Set copy mark"   wl-summary-copy t]
 294      ["Set resend mark" wl-summary-resend t]
 295      ["Prefetch"        wl-summary-prefetch t]
 296      ["Set target mark" wl-summary-target-mark t]
 297      ["Unmark"          wl-summary-unmark t]
 298      ["Save"            wl-summary-save t]
 299      ["Cancel posted news" wl-summary-cancel-message t]
 300      ["Supersedes message" wl-summary-supersedes-message t]
 301      ["Resend bounced mail" wl-summary-resend-bounced-mail t]
 302      ["Enter the message" wl-summary-jump-to-current-message t]
 303      ["Pipe message" wl-summary-pipe-message t]
 304      ["Print message" wl-summary-print-message t])
 305     ("Thread Operation"
 306      ["Open or Close" wl-thread-open-close (eq wl-summary-buffer-view 'thread)]
 307      ["Open all"     wl-thread-open-all (eq wl-summary-buffer-view 'thread)]
 308      ["Close all"    wl-thread-close-all (eq wl-summary-buffer-view 'thread)]
 309      ["Mark as read" wl-thread-mark-as-read (eq wl-summary-buffer-view 'thread)]
 310      ["Mark as important"       wl-thread-mark-as-important (eq wl-summary-buffer-view 'thread)]
 311      ["Mark as unread"          wl-thread-mark-as-unread (eq wl-summary-buffer-view 'thread)]
 312      ["Mark as answered"        wl-thread-mark-as-answered (eq wl-summary-buffer-view 'thread)]
 313      ["Set delete mark"  wl-thread-delete (eq wl-summary-buffer-view 'thread)]
 314      ["Set refile mark"  wl-thread-refile (eq wl-summary-buffer-view 'thread)]
 315      ["Set copy mark"    wl-thread-copy (eq wl-summary-buffer-view 'thread)]
 316      ["Prefetch"     wl-thread-prefetch (eq wl-summary-buffer-view 'thread)]
 317      ["Set target mark"        wl-thread-target-mark (eq wl-summary-buffer-view 'thread)]
 318      ["Unmark"      wl-thread-unmark (eq wl-summary-buffer-view 'thread)]
 319      ["Save"            wl-thread-save (eq wl-summary-buffer-view 'thread)]
 320      ["Execute"      wl-thread-exec (eq wl-summary-buffer-view 'thread)])
 321     ("Region Operation"
 322      ["Mark as read" wl-summary-mark-as-read-region t]
 323      ["Mark as important" wl-summary-mark-as-important-region t]
 324      ["Mark as unread" wl-summary-mark-as-unread-region t]
 325      ["Mark as answered" wl-summary-mark-as-answered-region t]
 326      ["Set dispose mark" wl-summary-dispose-region t]
 327      ["Set refile mark" wl-summary-refile-region t]
 328      ["Set copy mark" wl-summary-copy-region t]
 329      ["Prefetch" wl-summary-prefetch-region t]
 330      ["Set target mark" wl-summary-target-mark-region t]
 331      ["Unmark" wl-summary-unmark-region t]
 332      ["Save" wl-summary-save-region t]
 333      ["Execute" wl-summary-exec-region t])
 334     ("Mark Operation"
 335      ["Mark as read" wl-summary-target-mark-mark-as-read t]
 336      ["Mark as important" wl-summary-target-mark-mark-as-important t]
 337      ["Mark as unread" wl-summary-target-mark-mark-as-unread t]
 338      ["Set delete mark" wl-summary-target-mark-delete t]
 339      ["Set refile mark" wl-summary-target-mark-refile t]
 340      ["Set copy mark" wl-summary-target-mark-copy t]
 341      ["Prefetch" wl-summary-target-mark-prefetch t]
 342      ["Save" wl-summary-target-mark-save t]
 343      ["Reply with citation" wl-summary-target-mark-reply-with-citation t]
 344      ["Forward" wl-summary-target-mark-forward t]
 345      ["uudecode" wl-summary-target-mark-uudecode t])
 346     ("Score Operation"
 347      ["Switch current score file" wl-score-change-score-file t]
 348      ["Edit current score file" wl-score-edit-current-scores t]
 349      ["Edit score file" wl-score-edit-file t]
 350      ["Set mark below" wl-score-set-mark-below t]
 351      ["Set expunge below" wl-score-set-expunge-below t]
 352      ["Rescore buffer" wl-summary-rescore t]
 353      ["Increase score" wl-summary-increase-score t]
 354      ["Lower score" wl-summary-lower-score t])
 355     "----"
 356     ("Writing Messages"
 357      ["Write a message" wl-summary-write t]
 358      ["Write for current folder" wl-summary-write-current-folder t]
 359      ["Reply" wl-summary-reply t]
 360      ["Reply with citation" wl-summary-reply-with-citation t]
 361      ["Forward" wl-summary-forward t])
 362     "----"
 363     ["Toggle Plug Status" wl-toggle-plugged t]
 364     ["Change Plug Status" wl-plugged-change t]
 365     "----"
 366     ["Exit Current Folder" wl-summary-exit t]))
 367
 368 (if wl-on-xemacs
 369     (defun wl-summary-setup-mouse ()
 370       (define-key wl-summary-mode-map 'button4 'wl-summary-prev)
 371       (define-key wl-summary-mode-map 'button5 'wl-summary-next)
 372       (define-key wl-summary-mode-map [(shift button4)]
 373         'wl-summary-up)
 374       (define-key wl-summary-mode-map [(shift button5)]
 375         'wl-summary-down)
 376       (define-key wl-summary-mode-map 'button2 'wl-summary-click))
 377   (defun wl-summary-setup-mouse ()
 378     (define-key wl-summary-mode-map [mouse-4] 'wl-summary-prev)
 379     (define-key wl-summary-mode-map [mouse-5] 'wl-summary-next)
 380     (define-key wl-summary-mode-map [S-mouse-4] 'wl-summary-up)
 381     (define-key wl-summary-mode-map [S-mouse-5] 'wl-summary-down)
 382     (define-key wl-summary-mode-map [mouse-2] 'wl-summary-click)))
 383
 384 (if wl-summary-mode-map
 385     ()
 386   (setq wl-summary-mode-map (make-sparse-keymap))
 387   (define-key wl-summary-mode-map " "    'wl-summary-read)
 388   (define-key wl-summary-mode-map "."    'wl-summary-redisplay)
 389   (define-key wl-summary-mode-map "<"    'wl-summary-display-top)
 390   (define-key wl-summary-mode-map ">"    'wl-summary-display-bottom)
 391   (define-key wl-summary-mode-map "\177" 'wl-summary-prev-page)
 392   (define-key wl-summary-mode-map [backspace] 'wl-summary-prev-page)
 393   (define-key wl-summary-mode-map "\r"   'wl-summary-next-line-content)
 394   (define-key wl-summary-mode-map "\C-m" 'wl-summary-next-line-content)
 395   (define-key wl-summary-mode-map "/"    'wl-thread-open-close)
 396   (define-key wl-summary-mode-map "["    'wl-thread-open-all)
 397   (define-key wl-summary-mode-map "]"    'wl-thread-close-all)
 398   (define-key wl-summary-mode-map "-"    'wl-summary-prev-line-content)
 399   (define-key wl-summary-mode-map "\e\r" 'wl-summary-prev-line-content)
 400   (define-key wl-summary-mode-map "g"    'wl-summary-goto-folder)
 401   (define-key wl-summary-mode-map "G"    'wl-summary-goto-folder-sticky)
 402   (define-key wl-summary-mode-map "c"    'wl-summary-mark-as-read-all)
 403
 404   (define-key wl-summary-mode-map "a"    'wl-summary-reply)
 405   (define-key wl-summary-mode-map "A"    'wl-summary-reply-with-citation)
 406   (define-key wl-summary-mode-map "C"    'wl-summary-cancel-message)
 407   (define-key wl-summary-mode-map "E"    'wl-summary-reedit)
 408   (define-key wl-summary-mode-map "\eE"  'wl-summary-resend-bounced-mail)
 409   (define-key wl-summary-mode-map "f"    'wl-summary-forward)
 410   (define-key wl-summary-mode-map "$"    'wl-summary-mark-as-important)
 411   (define-key wl-summary-mode-map "&"    'wl-summary-mark-as-answered)
 412   (define-key wl-summary-mode-map "@"    'wl-summary-edit-addresses)
 413
 414   (define-key wl-summary-mode-map "y"    'wl-summary-save)
 415   (define-key wl-summary-mode-map "n"    'wl-summary-next)
 416   (define-key wl-summary-mode-map "p"    'wl-summary-prev)
 417   (define-key wl-summary-mode-map "N"    'wl-summary-down)
 418   (define-key wl-summary-mode-map "P"    'wl-summary-up)
 419   (define-key wl-summary-mode-map "w"    'wl-summary-write)
 420   (define-key wl-summary-mode-map "W"    'wl-summary-write-current-folder)
 421   (define-key wl-summary-mode-map "e"     'wl-summary-save)
 422   (define-key wl-summary-mode-map "\C-c\C-o" 'wl-jump-to-draft-buffer)
 423   (define-key wl-summary-mode-map "\C-c\C-a" 'wl-addrmgr)
 424   (define-key wl-summary-mode-map "\C-c\C-p" 'wl-summary-previous-buffer)
 425   (define-key wl-summary-mode-map "\C-c\C-n" 'wl-summary-next-buffer)
 426   (define-key wl-summary-mode-map "H"    'wl-summary-redisplay-all-header)
 427   (define-key wl-summary-mode-map "M"    'wl-summary-redisplay-no-mime)
 428   (define-key wl-summary-mode-map "B"    'wl-summary-burst)
 429   (define-key wl-summary-mode-map "Z"    'wl-status-update)
 430   (define-key wl-summary-mode-map "#"    'wl-summary-print-message)
 431   (define-key wl-summary-mode-map "|"    'wl-summary-pipe-message)
 432   (define-key wl-summary-mode-map "z"    'wl-summary-suspend)
 433   (define-key wl-summary-mode-map "q"    'wl-summary-exit)
 434   (define-key wl-summary-mode-map "Q"    'wl-summary-force-exit)
 435
 436   (define-key wl-summary-mode-map "j"    'wl-summary-jump-to-current-message)
 437   (define-key wl-summary-mode-map "J"    'wl-thread-jump-to-msg)
 438   (define-key wl-summary-mode-map "I"    'wl-summary-incorporate)
 439   (define-key wl-summary-mode-map "\M-j" 'wl-summary-jump-to-msg-by-message-id)
 440   (define-key wl-summary-mode-map "^"    'wl-summary-jump-to-parent-message)
 441   (define-key wl-summary-mode-map "!"    'wl-summary-mark-as-unread)
 442
 443   (define-key wl-summary-mode-map "s"    'wl-summary-sync)
 444   (define-key wl-summary-mode-map "S"    'wl-summary-sort)
 445   (define-key wl-summary-mode-map "\M-s"    'wl-summary-stick)
 446   (define-key wl-summary-mode-map "T"    'wl-summary-toggle-thread)
 447
 448   (define-key wl-summary-mode-map "l"    'wl-summary-toggle-disp-folder)
 449   (define-key wl-summary-mode-map "v"    'wl-summary-toggle-disp-msg)
 450   (define-key wl-summary-mode-map "V"    'wl-summary-virtual)
 451
 452   (define-key wl-summary-mode-map "\C-i"  'wl-summary-goto-last-displayed-msg)
 453   (define-key wl-summary-mode-map "?"    'wl-summary-pick)
 454   (define-key wl-summary-mode-map "\ee"  'wl-summary-expire)
 455
 456   ;; copy & paste.
 457   (define-key wl-summary-mode-map "\ew"  'wl-summary-save-current-message)
 458   (define-key wl-summary-mode-map "\C-y"  'wl-summary-yank-saved-message)
 459
 460   ;; line commands
 461   (define-key wl-summary-mode-map "R"    'wl-summary-mark-as-read)
 462   (define-key wl-summary-mode-map "i"    'wl-summary-prefetch)
 463   (define-key wl-summary-mode-map "x"    'wl-summary-exec)
 464   (define-key wl-summary-mode-map "*"    'wl-summary-target-mark)
 465   (define-key wl-summary-mode-map "o"    'wl-summary-refile)
 466   (define-key wl-summary-mode-map "O"    'wl-summary-copy)
 467   (define-key wl-summary-mode-map "\M-o" 'wl-summary-refile-prev-destination)
 468   (define-key wl-summary-mode-map "\C-o" 'wl-summary-auto-refile)
 469   (define-key wl-summary-mode-map "d"    'wl-summary-dispose)
 470   (define-key wl-summary-mode-map "u"    'wl-summary-unmark)
 471   (define-key wl-summary-mode-map "U"    'wl-summary-unmark-all)
 472   (define-key wl-summary-mode-map "D"    'wl-summary-delete)
 473   (define-key wl-summary-mode-map "~"    'wl-summary-resend)
 474
 475   ;; thread commands
 476   (define-key wl-summary-mode-map "t"   (make-sparse-keymap))
 477   (define-key wl-summary-mode-map "tR" 'wl-thread-mark-as-read)
 478   (define-key wl-summary-mode-map "ti" 'wl-thread-prefetch)
 479   (define-key wl-summary-mode-map "tx" 'wl-thread-exec)
 480   (define-key wl-summary-mode-map "t*" 'wl-thread-target-mark)
 481   (define-key wl-summary-mode-map "to" 'wl-thread-refile)
 482   (define-key wl-summary-mode-map "tO" 'wl-thread-copy)
 483   (define-key wl-summary-mode-map "t\M-o" 'wl-thread-refile-prev-destination)
 484   (define-key wl-summary-mode-map "td" 'wl-thread-dispose)
 485   (define-key wl-summary-mode-map "tD" 'wl-thread-delete)
 486   (define-key wl-summary-mode-map "t~" 'wl-thread-resend)
 487   (define-key wl-summary-mode-map "tu" 'wl-thread-unmark)
 488   (define-key wl-summary-mode-map "t!" 'wl-thread-mark-as-unread)
 489   (define-key wl-summary-mode-map "t$" 'wl-thread-mark-as-important)
 490   (define-key wl-summary-mode-map "t&" 'wl-thread-mark-as-answered)
 491   (define-key wl-summary-mode-map "ty" 'wl-thread-save)
 492   (define-key wl-summary-mode-map "ts" 'wl-thread-set-parent)
 493
 494   ;; target-mark commands
 495   (define-key wl-summary-mode-map "m"     (make-sparse-keymap))
 496   (define-key wl-summary-mode-map "mi"   'wl-summary-target-mark-prefetch)
 497   (define-key wl-summary-mode-map "mo"   'wl-summary-target-mark-refile)
 498   (define-key wl-summary-mode-map "mO"   'wl-summary-target-mark-copy)
 499   (define-key wl-summary-mode-map "m\M-o" 'wl-summary-target-mark-refile-prev-destination)
 500   (define-key wl-summary-mode-map "md"   'wl-summary-target-mark-dispose)
 501   (define-key wl-summary-mode-map "mD"   'wl-summary-target-mark-delete)
 502   (define-key wl-summary-mode-map "m~"   'wl-summary-target-mark-resend)
 503
 504   (define-key wl-summary-mode-map "mu"   'wl-summary-delete-all-temp-marks)
 505
 506   (define-key wl-summary-mode-map "my"   'wl-summary-target-mark-save)
 507   (define-key wl-summary-mode-map "mR"   'wl-summary-target-mark-mark-as-read)
 508   (define-key wl-summary-mode-map "m!"   'wl-summary-target-mark-mark-as-unread)
 509   (define-key wl-summary-mode-map "m$"   'wl-summary-target-mark-mark-as-important)
 510   (define-key wl-summary-mode-map "mU"   'wl-summary-target-mark-uudecode)
 511   (define-key wl-summary-mode-map "ma"   'wl-summary-target-mark-all)
 512   (define-key wl-summary-mode-map "mt"   'wl-summary-target-mark-thread)
 513   (define-key wl-summary-mode-map "mA"   'wl-summary-target-mark-reply-with-citation)
 514   (define-key wl-summary-mode-map "mf"   'wl-summary-target-mark-forward)
 515   (define-key wl-summary-mode-map "m?"   'wl-summary-target-mark-pick)
 516   (define-key wl-summary-mode-map "m#"   'wl-summary-target-mark-print)
 517   (define-key wl-summary-mode-map "m|"   'wl-summary-target-mark-pipe)
 518
 519   ;; region commands
 520   (define-key wl-summary-mode-map "r"    (make-sparse-keymap))
 521   (define-key wl-summary-mode-map "rR"   'wl-summary-mark-as-read-region)
 522   (define-key wl-summary-mode-map "ri"   'wl-summary-prefetch-region)
 523   (define-key wl-summary-mode-map "rx"   'wl-summary-exec-region)
 524   (define-key wl-summary-mode-map "mr"   'wl-summary-target-mark-region)
 525   (define-key wl-summary-mode-map "r*"   'wl-summary-target-mark-region)
 526   (define-key wl-summary-mode-map "ro"   'wl-summary-refile-region)
 527   (define-key wl-summary-mode-map "rO"   'wl-summary-copy-region)
 528   (define-key wl-summary-mode-map "r\M-o" 'wl-summary-refile-prev-destination-region)
 529   (define-key wl-summary-mode-map "rd"   'wl-summary-dispose-region)
 530   (define-key wl-summary-mode-map "rD"   'wl-summary-delete-region)
 531   (define-key wl-summary-mode-map "r~"   'wl-summary-resend-region)
 532   (define-key wl-summary-mode-map "ru"   'wl-summary-unmark-region)
 533   (define-key wl-summary-mode-map "r!"   'wl-summary-mark-as-unread-region)
 534   (define-key wl-summary-mode-map "r$"   'wl-summary-mark-as-important-region)
 535   (define-key wl-summary-mode-map "r&"   'wl-summary-mark-as-answered-region)
 536   (define-key wl-summary-mode-map "ry"   'wl-summary-save-region)
 537
 538   ;; score commands
 539   (define-key wl-summary-mode-map "K"    'wl-summary-increase-score)
 540   (define-key wl-summary-mode-map "L"    'wl-summary-lower-score)
 541   (define-key wl-summary-mode-map "h"    (make-sparse-keymap))
 542   (define-key wl-summary-mode-map "hR"   'wl-summary-rescore)
 543   (define-key wl-summary-mode-map "hc"   'wl-score-change-score-file)
 544   (define-key wl-summary-mode-map "he"   'wl-score-edit-current-scores)
 545   (define-key wl-summary-mode-map "hf"   'wl-score-edit-file)
 546   (define-key wl-summary-mode-map "hF"   'wl-score-flush-cache)
 547   (define-key wl-summary-mode-map "hm"   'wl-score-set-mark-below)
 548   (define-key wl-summary-mode-map "hx"   'wl-score-set-expunge-below)
 549
 550   ;; misc
 551   (define-key wl-summary-mode-map "\C-c\C-f" 'wl-summary-toggle-header-narrowing)
 552   (define-key wl-summary-mode-map "\M-t" 'wl-toggle-plugged)
 553   (define-key wl-summary-mode-map "\C-t" 'wl-plugged-change)
 554   ;;
 555   (define-key wl-summary-mode-map "\C-x\C-s" 'wl-summary-save-status)
 556   (wl-summary-setup-mouse)
 557   (easy-menu-define
 558    wl-summary-mode-menu
 559    wl-summary-mode-map
 560    "Menu used in Summary mode."
 561    wl-summary-mode-menu-spec))
 562
 563 (defsubst wl-summary-message-visible-p (number)
 564   "Return non-nil if the message with NUMBER is visible."
 565   (or (eq wl-summary-buffer-view 'sequence)
 566       (not (wl-thread-entity-parent-invisible-p
 567             (wl-thread-get-entity number)))))
 568
 569 (defun wl-summary-update-mark-and-highlight-window (&optional win beg)
 570   "A function to be called as window-scroll-functions."
 571   (with-current-buffer (window-buffer win)
 572     (when (eq major-mode 'wl-summary-mode)
 573       (let ((beg (or beg (window-start win)))
 574             (end (condition-case nil
 575                      (window-end win t) ; old emacsen doesn't support 2nd arg.
 576                    (error (window-end win))))
 577             number flags
 578             wl-summary-highlight)
 579         (save-excursion
 580           (goto-char beg)
 581           (while (and (< (point) end) (not (eobp)))
 582             (when (null (get-text-property (point) 'face))
 583               (setq number (wl-summary-message-number)
 584                     flags (elmo-message-flags wl-summary-buffer-elmo-folder
 585                                               number))
 586               (setq wl-summary-highlight nil)
 587               (wl-summary-update-persistent-mark number flags)
 588               (setq wl-summary-highlight t)
 589               (wl-highlight-summary-current-line number flags))
 590             (forward-line 1)))))
 591     (set-buffer-modified-p nil)))
 592
 593 (defun wl-summary-window-scroll-functions ()
 594   (cond ((and wl-summary-lazy-highlight
 595               wl-summary-lazy-update-mark)
 596          (list 'wl-summary-update-mark-and-highlight-window))
 597         (wl-summary-lazy-highlight
 598          (list 'wl-highlight-summary-window))
 599         (wl-summary-lazy-update-mark
 600          (list 'wl-summary-update-mark-window))))
 601
 602 (defun wl-status-update ()
 603   (interactive)
 604   (wl-address-init))
 605
 606 (defun wl-summary-display-top ()
 607   (interactive)
 608   (goto-char (point-min))
 609   (run-hooks 'wl-summary-buffer-window-scroll-functions)
 610   (if wl-summary-buffer-disp-msg
 611       (wl-summary-redisplay)))
 612
 613 (defun wl-summary-display-bottom ()
 614   (interactive)
 615   (goto-char (point-max))
 616   (forward-line -1)
 617   (run-hooks 'wl-summary-buffer-window-scroll-functions)
 618   (if wl-summary-buffer-disp-msg
 619       (wl-summary-redisplay)))
 620
 621 (defun wl-summary-count-unread ()
 622   (let ((lst (elmo-folder-count-flags wl-summary-buffer-elmo-folder)))
 623     (if (eq major-mode 'wl-summary-mode)
 624         (setq wl-summary-buffer-new-count (car lst)
 625               wl-summary-buffer-unread-count (nth 1 lst)
 626               wl-summary-buffer-answered-count (nth 2 lst)))
 627     lst))
 628
 629 (defun wl-summary-message-string (&optional use-cache)
 630   "Return full body string of current message.
 631 If optional USE-CACHE is non-nil, use cache if exists."
 632   (let ((number (wl-summary-message-number))
 633         (folder wl-summary-buffer-elmo-folder))
 634     (if (null number)
 635         (message "No message.")
 636       (elmo-set-work-buf
 637        (elmo-message-fetch folder
 638                            number
 639                            (elmo-make-fetch-strategy
 640                             'entire
 641                             use-cache ; use cache
 642                             nil ; save cache (should `t'?)
 643                             (and
 644                              use-cache
 645                              (elmo-file-cache-get-path
 646                               (elmo-message-field folder number 'message-id))))
 647                            nil
 648                            (current-buffer)
 649                            'unread)
 650        (buffer-string)))))
 651
 652 (defun wl-summary-reedit (&optional arg)
 653   "Re-edit current message.
 654 If ARG is non-nil, Supersedes message"
 655   (interactive "P")
 656   (wl-summary-toggle-disp-msg 'off)
 657   (cond
 658    ((not (wl-summary-message-number))
 659     (message "No message."))
 660    (arg
 661     (wl-summary-supersedes-message))
 662    ((string= (wl-summary-buffer-folder-name) wl-draft-folder)
 663     (wl-draft-reedit (wl-summary-message-number))
 664     (if (wl-message-news-p)
 665         (mail-position-on-field "Newsgroups")
 666       (mail-position-on-field "To")))
 667    (t
 668     (wl-draft-edit-string (wl-summary-message-string)))))
 669
 670 (defun wl-summary-resend-bounced-mail ()
 671   "Re-mail the current message.
 672 This only makes sense if the current message is a bounce message which
 673 contains some mail you have written but has been bounced back to
 674 you."
 675   (interactive)
 676   (wl-summary-toggle-disp-msg 'off)
 677   (save-excursion
 678     (wl-summary-set-message-buffer-or-redisplay)
 679     (set-buffer (wl-message-get-original-buffer))
 680     (goto-char (point-min))
 681     (let ((case-fold-search nil))
 682       (cond
 683        ((and
 684          (re-search-forward
 685           (concat "^\\($\\|[Cc]ontent-[Tt]ype:[ \t]+multipart/\\(report\\|mixed\\)\\)") nil t)
 686          (not (bolp))
 687          (re-search-forward "boundary=\"\\([^\"]+\\)\"" nil t))
 688         (let ((boundary (buffer-substring (match-beginning 1) (match-end 1)))
 689               start)
 690           (cond
 691            ((and (setq start (re-search-forward
 692                               (concat "^--" boundary "\n"
 693                                       "\\([Cc]ontent-[Dd]escription:.*\n\\)?"
 694                                       "[Cc]ontent-[Tt]ype:[ \t]+"
 695                                       "\\(message/rfc822\\|text/rfc822-headers\\).*\n"
 696                                       "\\(.+\n\\)*\n") nil t))
 697                  (re-search-forward
 698                   (concat "\n\\(--" boundary "\\)--\n") nil t))
 699             (wl-draft-edit-string (buffer-substring start (match-beginning 1))))
 700            (t
 701             (message "Seems no message/rfc822 part.")))))
 702        ((let ((case-fold-search t))
 703           (re-search-forward wl-rejected-letter-start nil t))
 704         (skip-chars-forward " \t\n")
 705         (wl-draft-edit-string (buffer-substring (point) (point-max))))
 706        (t
 707         (message "Does not appear to be a rejected letter."))))))
 708
 709 (defun wl-summary-detect-mark-position ()
 710   (let ((column wl-summary-buffer-number-column)
 711         (formatter wl-summary-buffer-line-formatter)
 712         (dummy-temp (char-to-string 200))
 713         ;; bind only for the check.
 714         (wl-summary-new-uncached-mark (char-to-string 201))
 715         (wl-summary-flag-priority-list '(new))     ; ditto.
 716         (lang wl-summary-buffer-weekday-name-lang)
 717         wl-summary-highlight
 718         temp persistent)
 719     (with-temp-buffer
 720       (setq wl-summary-buffer-number-column column
 721             wl-summary-buffer-line-formatter formatter
 722             wl-summary-buffer-weekday-name-lang lang)
 723       (insert
 724        (wl-summary-create-line
 725         (elmo-msgdb-make-message-entity
 726          (luna-make-entity 'modb-entity-handler)
 727          :number 10000
 728          :from "foo"
 729          :subject "bar"
 730          :size 100)
 731         nil
 732         dummy-temp
 733         '(new)
 734         nil))
 735       (goto-char (point-min))
 736       (setq temp (save-excursion
 737                    (when (search-forward dummy-temp nil t)
 738                      (current-column)))
 739             persistent
 740             (save-excursion
 741               (when (search-forward wl-summary-new-uncached-mark nil t)
 742                 (current-column)))))
 743     (setq wl-summary-buffer-temp-mark-column temp
 744           wl-summary-buffer-persistent-mark-column persistent)))
 745
 746 (defun wl-summary-buffer-set-folder (folder)
 747   (if (stringp folder)
 748       (setq folder (wl-folder-get-elmo-folder folder)))
 749   (setq wl-summary-buffer-elmo-folder folder)
 750   (make-local-variable 'wl-message-buffer)
 751   (setq wl-summary-buffer-mime-charset (or (wl-get-assoc-list-value
 752                                             wl-folder-mime-charset-alist
 753                                             (elmo-folder-name-internal folder))
 754                                            wl-mime-charset))
 755   (setq wl-summary-buffer-weekday-name-lang
 756         (or (wl-get-assoc-list-value
 757              wl-folder-weekday-name-lang-alist
 758              (elmo-folder-name-internal folder))
 759             wl-summary-weekday-name-lang))
 760   (setq wl-summary-buffer-thread-indent-set
 761         (wl-get-assoc-list-value
 762          wl-folder-thread-indent-set-alist
 763          (elmo-folder-name-internal folder)))
 764   (setq wl-summary-buffer-number-column
 765         (or (wl-get-assoc-list-value wl-summary-number-column-alist
 766                                      (wl-summary-buffer-folder-name))
 767             wl-summary-default-number-column))
 768   (wl-line-formatter-setup
 769    wl-summary-buffer-line-formatter
 770    (setq wl-summary-buffer-line-format
 771          (or (wl-get-assoc-list-value
 772               wl-folder-summary-line-format-alist
 773               (elmo-folder-name-internal folder))
 774              wl-summary-line-format))
 775    wl-summary-line-format-spec-alist)
 776   (wl-line-formatter-setup
 777    wl-summary-buffer-mode-line-formatter
 778    wl-summary-mode-line-format
 779    wl-summary-mode-line-format-spec-alist)
 780   (setq wl-summary-buffer-persistent
 781         (wl-folder-persistent-p (elmo-folder-name-internal folder)))
 782   (elmo-folder-set-persistent-internal folder wl-summary-buffer-persistent)
 783   ;; process duplicates.
 784   (elmo-folder-set-process-duplicates-internal
 785    folder (cdr (elmo-string-matched-assoc
 786                 (elmo-folder-name-internal folder)
 787                 wl-folder-process-duplicates-alist)))
 788   (setq
 789    wl-thread-indent-level-internal
 790    (or (nth 0 wl-summary-buffer-thread-indent-set)
 791        wl-thread-indent-level)
 792    wl-thread-have-younger-brother-str-internal
 793    (or (nth 1 wl-summary-buffer-thread-indent-set)
 794        wl-thread-have-younger-brother-str)
 795    wl-thread-youngest-child-str-internal
 796    (or (nth 2 wl-summary-buffer-thread-indent-set)
 797        wl-thread-youngest-child-str)
 798    wl-thread-vertical-str-internal
 799    (or (nth 3 wl-summary-buffer-thread-indent-set)
 800        wl-thread-vertical-str)
 801    wl-thread-horizontal-str-internal
 802    (or (nth 4 wl-summary-buffer-thread-indent-set)
 803        wl-thread-horizontal-str)
 804    wl-thread-space-str-internal
 805    (or (nth 5 wl-summary-buffer-thread-indent-set)
 806        wl-thread-space-str))
 807   (run-hooks 'wl-summary-buffer-set-folder-hook))
 808
 809 (defun wl-summary-mode ()
 810   "Major mode for reading threaded messages.
 811 See Info under Wanderlust for full documentation.
 812
 813 Special commands:
 814 \\{wl-summary-mode-map}
 815
 816 Entering Folder mode calls the value of `wl-summary-mode-hook'."
 817   (interactive)
 818   (unless (interactive-p) (kill-all-local-variables))
 819   (setq major-mode 'wl-summary-mode)
 820   (setq mode-name "Summary")
 821   (use-local-map wl-summary-mode-map)
 822 ;;;(setq default-directory (or wl-tmp-dir (expand-file-name "~/")))
 823   (setq buffer-read-only t)
 824   (setq truncate-lines t)
 825 ;;;(make-local-variable 'tab-width)
 826 ;;;(setq tab-width 1)
 827   (buffer-disable-undo (current-buffer))
 828   (setq selective-display t
 829         selective-display-ellipses nil)
 830   (wl-mode-line-buffer-identification '(wl-summary-buffer-mode-line))
 831   (easy-menu-add wl-summary-mode-menu)
 832   (setq wl-summary-buffer-window-scroll-functions
 833         (wl-summary-window-scroll-functions))
 834   (when wl-summary-buffer-window-scroll-functions
 835     (let ((hook (if wl-on-xemacs 'pre-idle-hook 'window-scroll-functions)))
 836       (make-local-hook hook)
 837       (dolist (function wl-summary-buffer-window-scroll-functions)
 838         (add-hook hook function nil t))))
 839   ;; This hook may contain the function `wl-setup-summary' for reasons
 840   ;; of system internal to accord facilities for the Emacs variants.
 841   (run-hooks 'wl-summary-mode-hook))
 842
 843 ;;;
 844 (defun wl-summary-overview-entity-compare-by-date (x y)
 845   "Compare entity X and Y by date."
 846   (condition-case nil
 847       (string<
 848        (timezone-make-date-sortable
 849         (elmo-message-entity-field x 'date))
 850        (timezone-make-date-sortable
 851         (elmo-message-entity-field y 'date)))
 852     (error))) ;; ignore error.
 853
 854 (defun wl-summary-overview-entity-compare-by-number (x y)
 855    "Compare entity X and Y by number."
 856   (<
 857    (elmo-message-entity-number x)
 858    (elmo-message-entity-number y)))
 859
 860 (defun wl-summary-overview-entity-compare-by-from (x y)
 861   "Compare entity X and Y by from."
 862   (string<
 863    (wl-address-header-extract-address
 864     (or (elmo-message-entity-field x 'from t)
 865         wl-summary-no-from-message))
 866    (wl-address-header-extract-address
 867     (or (elmo-message-entity-field y 'from t)
 868         wl-summary-no-from-message))))
 869
 870 (defun wl-summary-overview-entity-compare-by-subject (x y)
 871   "Compare entity X and Y by subject."
 872   (string< (elmo-message-entity-field x 'subject)
 873            (elmo-message-entity-field y 'subject)))
 874
 875 (defun wl-summary-get-list-info (entity)
 876   "Returns (\"ML-name\" . ML-count) of ENTITY."
 877   (let (sequence ml-name ml-count subject return-path delivered-to mailing-list)
 878     (setq sequence (elmo-message-entity-field entity 'x-sequence)
 879           ml-name (or (elmo-message-entity-field entity 'x-ml-name)
 880                       (and sequence
 881                            (car (split-string sequence " "))))
 882           ml-count (or (elmo-message-entity-field entity 'x-mail-count)
 883                        (elmo-message-entity-field entity 'x-ml-count)
 884                        (and sequence
 885                             (cadr (split-string sequence " ")))))
 886     (and (setq subject (elmo-message-entity-field entity 'subject t))
 887          (setq subject (elmo-delete-char ?\n subject))
 888          (string-match "^\\s(\\(\\S)+\\)[ :]\\([0-9]+\\)\\s)[ \t]*" subject)
 889          (progn
 890            (or ml-name (setq ml-name (match-string 1 subject)))
 891            (or ml-count (setq ml-count (match-string 2 subject)))))
 892     (and (setq return-path
 893                (elmo-message-entity-field entity 'return-path))
 894          (string-match "^<\\([^@>]+\\)-return-\\([0-9]+\\)-" return-path)
 895          (progn
 896            (or ml-name (setq ml-name (match-string 1 return-path)))
 897            (or ml-count (setq ml-count (match-string 2 return-path)))))
 898     (and (setq delivered-to
 899                (elmo-message-entity-field entity 'delivered-to))
 900          (string-match "^mailing list \\([^@]+\\)@" delivered-to)
 901          (or ml-name (setq ml-name (match-string 1 delivered-to))))
 902     (and (setq mailing-list
 903                (elmo-message-entity-field entity 'mailing-list))
 904          ;; *-help@, *-owner@, etc.
 905          (string-match "\\(^\\|; \\)contact \\([^@]+\\)-[^-@]+@" mailing-list)
 906          (or ml-name (setq ml-name (match-string 2 mailing-list))))
 907     (cons (and ml-name (car (split-string ml-name " ")))
 908           (and ml-count (string-to-int ml-count)))))
 909
 910 (defun wl-summary-overview-entity-compare-by-list-info (x y)
 911   "Compare entity X and Y by mailing-list info."
 912   (let* ((list-info-x (wl-summary-get-list-info x))
 913          (list-info-y (wl-summary-get-list-info y)))
 914     (if (equal (car list-info-x) (car list-info-y))
 915         (if (equal (cdr list-info-x) (cdr list-info-y))
 916             (wl-summary-overview-entity-compare-by-date x y)
 917           (< (or (cdr list-info-x) 0)
 918              (or (cdr list-info-y) 0)))
 919       (string< (or (car list-info-x) "")
 920                (or (car list-info-y) "")))))
 921
 922 (defun wl-summary-sort-by-date ()
 923   (interactive)
 924   (wl-summary-rescan "date"))
 925 (defun wl-summary-sort-by-number ()
 926   (interactive)
 927   (wl-summary-rescan "number"))
 928 (defun wl-summary-sort-by-subject ()
 929   (interactive)
 930   (wl-summary-rescan "subject"))
 931 (defun wl-summary-sort-by-from ()
 932   (interactive)
 933   (wl-summary-rescan "from"))
 934 (defun wl-summary-sort-by-list-info ()
 935   (interactive)
 936   (wl-summary-rescan "list-info"))
 937
 938 (defun wl-summary-rescan (&optional sort-by disable-killed disable-thread)
 939   "Rescan current folder without updating."
 940   (interactive)
 941   (let ((elmo-mime-charset wl-summary-buffer-mime-charset)
 942         i percent num
 943         gc-message entity
 944         curp
 945         (inhibit-read-only t)
 946         (buffer-read-only nil)
 947         (numbers (elmo-folder-list-messages wl-summary-buffer-elmo-folder
 948                                             (not disable-killed) t)) ; in-msgdb
 949         (wl-thread-saved-entity-hashtb-internal (and (not disable-thread)
 950                                                      wl-thread-entity-hashtb))
 951         (wl-summary-search-parent-by-subject-regexp
 952          (and disable-thread wl-summary-search-parent-by-subject-regexp))
 953         (wl-summary-divide-thread-when-subject-changed
 954          (and disable-thread wl-summary-divide-thread-when-subject-changed))
 955         expunged)
 956     (erase-buffer)
 957     (message "Re-scanning...")
 958     (setq i 0)
 959     (when sort-by
 960       (message "Sorting by %s..." sort-by)
 961       (setq numbers
 962             (sort numbers
 963                   (lambda (x y)
 964                     (funcall
 965                      (intern (format "wl-summary-overview-entity-compare-by-%s"
 966                                      sort-by))
 967                      (elmo-message-entity wl-summary-buffer-elmo-folder x)
 968                      (elmo-message-entity wl-summary-buffer-elmo-folder y)))))
 969       (message "Sorting by %s...done" sort-by))
 970     (setq num (length numbers))
 971     (setq wl-thread-entity-hashtb (elmo-make-hash (* num 2))
 972           wl-thread-entity-list nil
 973           wl-thread-entities nil
 974           wl-summary-scored nil
 975           wl-summary-buffer-number-list nil
 976           wl-summary-buffer-unsync-mark-number-list nil
 977           wl-summary-buffer-target-mark-list nil
 978           wl-summary-buffer-temp-mark-list nil
 979           wl-summary-delayed-update nil)
 980     (elmo-kill-buffer wl-summary-search-buf-name)
 981     (while numbers
 982       (setq entity (elmo-message-entity wl-summary-buffer-elmo-folder
 983                                         (car numbers)))
 984       (wl-summary-insert-message entity
 985                                  wl-summary-buffer-elmo-folder
 986                                  nil)
 987       (setq numbers (cdr numbers))
 988       (when (> num elmo-display-progress-threshold)
 989         (setq i (+ i 1))
 990         (if (or (zerop (% i 5)) (= i num))
 991             (elmo-display-progress
 992              'wl-summary-rescan "Constructing summary structure..."
 993              (/ (* i 100) num)))))
 994     (when wl-summary-delayed-update
 995       (while wl-summary-delayed-update
 996         (message "Parent (%d) of message %d is no entity"
 997                  (caar wl-summary-delayed-update)
 998                  (elmo-message-entity-number
 999                   (cdar wl-summary-delayed-update)))
1000         (wl-summary-insert-message
1001          (cdar wl-summary-delayed-update)
1002          wl-summary-buffer-elmo-folder nil t)
1003         (setq wl-summary-delayed-update (cdr wl-summary-delayed-update))))
1004     (message "Constructing summary structure...done")
1005     (if (eq wl-summary-buffer-view 'thread)
1006         (progn
1007           (message "Inserting thread...")
1008           (wl-thread-insert-top)
1009           (message "Inserting thread...done")))
1010     (when wl-use-scoring
1011       (wl-summary-score-headers (wl-summary-rescore-msgs
1012                                  wl-summary-buffer-number-list)
1013                                 t)
1014       (when (and wl-summary-scored
1015                  (setq expunged (wl-summary-score-update-all-lines)))
1016         (message "%d message(s) are expunged by scoring." (length expunged))))
1017     (wl-summary-set-message-modified)
1018     (wl-summary-count-unread)
1019     (wl-summary-update-modeline)
1020     (goto-char (point-max))
1021     (forward-line -1)
1022     (set-buffer-modified-p nil)))
1023
1024 (defun wl-summary-next-folder-or-exit (&optional next-entity upward)
1025   (if (and next-entity
1026            wl-auto-select-next)
1027       (let (retval)
1028         (wl-summary-toggle-disp-msg 'off)
1029         (unwind-protect
1030             (setq retval
1031                   (wl-summary-goto-folder-subr next-entity
1032                                                'force-update
1033                                                nil
1034                                                nil ; not sticky
1035                                                t   ; interactive!
1036                                                ))
1037           (wl-folder-set-current-entity-id (wl-folder-get-entity-id next-entity))
1038           (if (and (eq retval 'more-next)
1039                    (memq wl-auto-select-next '(unread skip-no-unread))
1040                    (memq this-command wl-summary-next-no-unread-command))
1041               (if upward
1042                   (wl-summary-up
1043                    t (eq wl-auto-select-next 'skip-no-unread))
1044                 (goto-char (point-max))
1045                 (forward-line -1)
1046                 (wl-summary-down
1047                  t (eq wl-auto-select-next 'skip-no-unread))))))
1048     (wl-summary-exit)))
1049
1050 (defun wl-summary-entity-info-msg (entity finfo)
1051   (or (and entity
1052            (concat
1053             (if (memq 'ask-folder wl-use-folder-petname)
1054                 (wl-folder-get-petname entity)
1055               entity)
1056             (if (null (car finfo))
1057                 " (? new/? unread)"
1058               (format
1059                " (%d new/%d unread)"
1060                (nth 0 finfo)
1061                (+ (nth 0 finfo)
1062                   (nth 1 finfo))))))
1063       "folder mode"))
1064
1065 (defun wl-summary-set-message-modified ()
1066   (setq wl-summary-buffer-message-modified t))
1067 (defun wl-summary-message-modified-p ()
1068   wl-summary-buffer-message-modified)
1069 (defun wl-summary-set-thread-modified ()
1070   (setq wl-summary-buffer-thread-modified t))
1071 (defun wl-summary-thread-modified-p ()
1072   wl-summary-buffer-thread-modified)
1073
1074 (defsubst wl-summary-cleanup-temp-marks (&optional sticky)
1075   (when wl-summary-buffer-temp-mark-list
1076     (if (y-or-n-p (format "Execute remaining marks in %s? "
1077                           (wl-summary-buffer-folder-name)))
1078         (progn
1079           (wl-summary-exec)
1080           (if wl-summary-buffer-temp-mark-list
1081               (error "Some execution was failed")))
1082       ;; temp-mark-list is remained.
1083       (message "")))
1084   (wl-summary-delete-all-temp-marks 'no-msg)
1085   (setq wl-summary-scored nil))
1086
1087 ;; a subroutine for wl-summary-exit/wl-save-status
1088 ;; Note that folder is not commited here.
1089 (defun wl-summary-save-view ()
1090   ;; already in summary buffer.
1091   (when wl-summary-buffer-persistent
1092     ;; save the current summary buffer view.
1093     (if (and wl-summary-cache-use
1094              (or (wl-summary-message-modified-p)
1095                  (wl-summary-thread-modified-p)))
1096         (wl-summary-save-view-cache))))
1097
1098 (defun wl-summary-save-status ()
1099   "Save summary view and msgdb."
1100   (interactive)
1101   (if (interactive-p) (message "Saving summary status..."))
1102   (wl-summary-save-view)
1103   (elmo-folder-commit wl-summary-buffer-elmo-folder)
1104   (elmo-folder-check wl-summary-buffer-elmo-folder)
1105   (if wl-use-scoring (wl-score-save))
1106   (if (interactive-p) (message "Saving summary status...done")))
1107
1108 (defun wl-summary-force-exit ()
1109   "Exit current summary.  Buffer is deleted even the buffer is sticky."
1110   (interactive)
1111   (wl-summary-exit 'force-exit))
1112
1113 (defun wl-summary-exit (&optional force-exit)
1114   "Exit current summary.  if FORCE-EXIT, exits even the summary is sticky."
1115   (interactive "P")
1116   (let ((summary-buf (current-buffer))
1117         (sticky (wl-summary-sticky-p))
1118         summary-win
1119         message-buf message-win
1120         folder-buf folder-win)
1121     (run-hooks 'wl-summary-exit-pre-hook)
1122     (if wl-summary-buffer-exit-function
1123         (funcall wl-summary-buffer-exit-function)
1124       (if (or force-exit (not sticky))
1125           (wl-summary-cleanup-temp-marks sticky))
1126       (unwind-protect
1127           ;; save summary status
1128           (progn
1129             (wl-summary-save-view)
1130             (if (or force-exit (not sticky))
1131                 (elmo-folder-close wl-summary-buffer-elmo-folder)
1132               (elmo-folder-commit wl-summary-buffer-elmo-folder)
1133               (elmo-folder-check wl-summary-buffer-elmo-folder))
1134             (if wl-use-scoring (wl-score-save)))
1135         ;; for sticky summary
1136         (wl-delete-all-overlays)
1137         (setq wl-summary-buffer-disp-msg nil)
1138         (elmo-kill-buffer wl-summary-search-buf-name)
1139         ;; delete message window if displayed.
1140         (if (and wl-message-buffer (get-buffer-window wl-message-buffer))
1141             (delete-window (get-buffer-window wl-message-buffer)))
1142         (if (and wl-summary-use-frame
1143                  (> (length (visible-frame-list)) 1))
1144             (delete-frame))
1145         (if (setq folder-buf (get-buffer wl-folder-buffer-name))
1146             (if wl-summary-use-frame
1147                 (let (select-frame)
1148                   (save-selected-window
1149                     (dolist (frame (visible-frame-list))
1150                       (select-frame frame)
1151                       (if (get-buffer-window folder-buf)
1152                           (setq select-frame frame))))
1153                   (if select-frame
1154                       (select-frame select-frame)
1155                     (switch-to-buffer folder-buf)))
1156               (if (setq folder-win (get-buffer-window folder-buf))
1157                   ;; folder win is already displayed.
1158                   (select-window folder-win)
1159                 ;; folder win is not displayed.
1160                 (switch-to-buffer folder-buf)))
1161           ;; currently no folder buffer
1162           (wl-folder))
1163         (and wl-folder-move-cur-folder
1164              wl-folder-buffer-cur-point
1165              (goto-char wl-folder-buffer-cur-point))
1166         (setq wl-folder-buffer-cur-path nil)
1167         (setq wl-folder-buffer-cur-entity-id nil)
1168         (wl-delete-all-overlays)
1169         (if wl-summary-exit-next-move
1170             (wl-folder-next-unsync t)
1171           (beginning-of-line))
1172         (if (setq summary-win (get-buffer-window summary-buf))
1173             (delete-window summary-win))
1174         (if (or force-exit
1175                 (not sticky))
1176             (progn
1177               (set-buffer summary-buf)
1178               (kill-buffer summary-buf)))
1179         (run-hooks 'wl-summary-exit-hook)))))
1180
1181 (defun wl-summary-suspend ()
1182   (interactive)
1183   (wl-summary-exit)
1184   (wl-folder-suspend))
1185
1186 (defun wl-summary-sync-force-update (&optional unset-cursor no-check)
1187   (interactive)
1188   (wl-summary-sync-update unset-cursor nil nil no-check))
1189
1190 (defsubst wl-summary-sync-all-init ()
1191   (wl-summary-cleanup-temp-marks)
1192   (erase-buffer)
1193   (wl-summary-set-message-modified)
1194   (setq wl-thread-entity-hashtb (elmo-make-hash
1195                                  (* (elmo-folder-length
1196                                      wl-summary-buffer-elmo-folder)
1197                                     2)))
1198   (setq wl-thread-entity-list nil)
1199   (setq wl-thread-entities nil)
1200   (setq wl-summary-buffer-number-list nil)
1201   (setq wl-summary-buffer-target-mark-list nil)
1202   (setq wl-summary-buffer-temp-mark-list nil))
1203
1204 (defun wl-summary-sync (&optional unset-cursor force-range)
1205   (interactive)
1206   (let* ((folder wl-summary-buffer-elmo-folder)
1207          (inhibit-read-only t)
1208          (buffer-read-only nil)
1209          (msgdb-dir (elmo-folder-msgdb-path folder))
1210          (range (or force-range (wl-summary-input-range
1211                                  (elmo-folder-name-internal folder)))))
1212     (cond ((string-match "rescan" range)
1213            (let ((msg (wl-summary-message-number))
1214                  (wl-use-scoring (if (string-match "noscore" range)
1215                                      nil
1216                                    wl-use-scoring)))
1217              (wl-summary-rescan nil
1218                                 (string-match "noscore" range)
1219                                 (string-match "thread" range))
1220              (and msg (wl-summary-jump-to-msg msg))))
1221           ((string= range "mark")
1222            (let ((msg (wl-summary-message-number)))
1223              (call-interactively 'wl-summary-sync-marks)
1224              (and msg (wl-summary-jump-to-msg msg))))
1225           ((string= range "cache-status")
1226            (let ((msg (wl-summary-message-number)))
1227              (wl-summary-resume-cache-status)
1228              (and msg (wl-summary-jump-to-msg msg))))
1229           ((string= range "no-sync"))
1230           ((or (string-match "^last:" range)
1231                (string-match "^first:" range))
1232            (wl-summary-goto-folder-subr (concat "/" range "/"
1233                                                 (elmo-folder-name-internal
1234                                                  folder))
1235                                         'force-update nil nil t))
1236           (t
1237            (wl-summary-sync-update unset-cursor
1238                                    (string-match "entirely" range)
1239                                    (string-match "all" range))))))
1240
1241 (defvar wl-summary-edit-addresses-candidate-fields
1242   ;; First element becomes default.
1243   '("from" "to" "cc"))
1244
1245 (defun wl-summary-edit-addresses-collect-candidate-fields (mime-charset)
1246   (let ((fields wl-summary-edit-addresses-candidate-fields)
1247         body candidates components)
1248     (while fields
1249       (setq body
1250             (mapconcat 'identity (elmo-multiple-field-body (car fields))
1251                        ","))
1252       (setq body (wl-parse-addresses body))
1253       (if body (setq candidates (append candidates body)))
1254       (setq fields (cdr fields)))
1255     (setq candidates (elmo-uniq-list candidates))
1256     (elmo-set-work-buf
1257      (elmo-set-buffer-multibyte default-enable-multibyte-characters)
1258      (mapcar (function
1259               (lambda (x)
1260                 (setq components (std11-extract-address-components x))
1261                 (cons (nth 1 components)
1262                       (and (car components)
1263                            (eword-decode-string
1264                             (decode-mime-charset-string
1265                              (car components)
1266                              mime-charset))))))
1267              candidates))))
1268
1269 (defun wl-summary-edit-addresses-subr (the-email name-in-addr)
1270   ;; returns nil if there's no change.
1271   (if (elmo-get-hash-val (downcase the-email) wl-address-petname-hash)
1272       (let (char)
1273         (message "'%s' already exists. (e)dit/(d)elete/(c)ancel?"
1274                  the-email)
1275         (while (not (or (eq (setq char (read-char)) ?\r)
1276                         (eq char ?\n)
1277                         (eq char ? )
1278                         (eq char ?e)
1279                         (eq char ?c)
1280                         (eq char ?d)))
1281           (message
1282            "Please answer `e' or `d' or `c'. (e)dit/(d)elete/(c)ancel?"))
1283         (cond
1284          ((or (eq char ?e)
1285               (eq char ?\n)
1286               (eq char ?\r)
1287               (eq char ? ))
1288           ;; Change Addresses
1289           (wl-address-add-or-change
1290            the-email
1291            (wl-address-header-extract-realname
1292             (cdr (assoc
1293                   (let ((completion-ignore-case t) comp)
1294                     (setq comp
1295                           (try-completion the-email wl-address-completion-list))
1296                     (if (equal comp t) the-email comp))
1297                   wl-address-completion-list))))
1298           "edited")
1299          ((eq char ?d)
1300           ;; Delete Addresses
1301           (if (y-or-n-p (format "Delete '%s'? "
1302                                 the-email))
1303               (progn
1304                 (wl-address-delete the-email)
1305                 "deleted")
1306             (message "")
1307             nil))
1308          (t (message "")
1309             nil)))
1310     ;; Add Petname
1311     (wl-address-add-or-change the-email name-in-addr)
1312     "added"))
1313
1314 (defun wl-summary-edit-addresses (&optional addr-str)
1315   "Edit address book interactively.
1316 Optional argument ADDR-STR is used as a target address if specified."
1317   (interactive (if current-prefix-arg
1318                    (list (read-from-minibuffer "Target address: "))))
1319   (if (null (wl-summary-message-number))
1320       (message "No message.")
1321     (save-excursion
1322       (let* ((charset wl-summary-buffer-mime-charset)
1323              (candidates
1324               (with-current-buffer (wl-summary-get-original-buffer)
1325                 (wl-summary-edit-addresses-collect-candidate-fields
1326                  charset)))
1327              address pair result)
1328         (if addr-str
1329             (setq address addr-str)
1330           (when candidates
1331             (setq address (car (car candidates)))
1332             (setq address
1333                   (completing-read
1334                    (format "Target address (%s): " address)
1335                    (mapcar
1336                     (function (lambda (x) (cons (car x) (car x))))
1337                     candidates)
1338                    nil nil nil nil address))))
1339         (when address
1340           (setq pair (assoc address candidates))
1341           (unless pair
1342             (setq pair (cons address nil)))
1343           (when (setq result (wl-summary-edit-addresses-subr (car pair) (cdr pair)))
1344             ;; update alias
1345             (wl-status-update)
1346             (setq address (assoc (car pair) wl-address-list))
1347             (if address
1348                 (message "%s, %s, <%s> is %s."
1349                          (nth 2 address)
1350                          (nth 1 address)
1351                          (nth 0 address)
1352                          result)))
1353 ;;; i'd like to update summary-buffer, but...
1354 ;;;     (wl-summary-rescan)
1355           (run-hooks 'wl-summary-edit-addresses-hook))))))
1356
1357 (defun wl-summary-incorporate (&optional arg)
1358   "Check and prefetch all uncached messages.
1359 If ARG is non-nil, checking is omitted."
1360   (interactive "P")
1361   (unless arg
1362     (save-excursion
1363       (wl-summary-sync-force-update)))
1364   (wl-summary-prefetch-region-no-mark (point-min) (point-max)
1365                                       wl-summary-incorporate-marks))
1366
1367 (defun wl-summary-prefetch-msg (number &optional arg)
1368   "Prefetch message and return non-nil value. If skipped, return nil."
1369   ;; prefetching procedure.
1370   (save-excursion
1371     (let* ((size (elmo-message-field wl-summary-buffer-elmo-folder
1372                                      number 'size))
1373            (file-cached (elmo-file-cache-exists-p
1374                          (elmo-message-field wl-summary-buffer-elmo-folder
1375                                              number 'message-id)))
1376            (force-read (and size
1377                             (or file-cached
1378                                 (and (null wl-prefetch-confirm) arg)
1379                                 (null wl-prefetch-threshold)
1380                                 (< size wl-prefetch-threshold))))
1381            mark new-mark)
1382       (ignore-errors
1383         (when (and (or arg (not file-cached))
1384                    size (not force-read) wl-prefetch-confirm)
1385           (let ((wl-message-entity (elmo-message-entity
1386                                     wl-summary-buffer-elmo-folder
1387                                     number)))
1388             (setq force-read
1389                   (save-restriction
1390                     (widen)
1391                     (y-or-n-p
1392                      (format
1393                       "Message from %s has %d bytes.  Prefetch it? "
1394                       (concat
1395                        "[ "
1396                        (save-match-data
1397                          (wl-set-string-width
1398                           17
1399                           (funcall
1400                            wl-summary-from-function
1401                            (elmo-delete-char
1402                             ?\"
1403                             (or
1404                              (elmo-message-entity-field
1405                               wl-message-entity
1406                               'from t)
1407                              "??")))))
1408                        " ]")
1409                       size))))
1410             (message "")))              ; flush.
1411         (if force-read
1412             (save-excursion
1413               (save-match-data
1414                 ;; online
1415                 (if (or arg (not file-cached))
1416                     (elmo-message-encache
1417                      wl-summary-buffer-elmo-folder
1418                      number))
1419                 (elmo-message-set-cached wl-summary-buffer-elmo-folder
1420                                          number t)
1421                 (when (and (wl-summary-jump-to-msg number)
1422                            (wl-summary-update-persistent-mark))
1423                   (sit-for 0)
1424                   (wl-summary-count-unread)
1425                   (wl-summary-update-modeline)
1426                   (wl-folder-update-unread
1427                    (wl-summary-buffer-folder-name)
1428                    (+ wl-summary-buffer-unread-count
1429                       wl-summary-buffer-new-count))))
1430               t)
1431           nil)))))
1432
1433 (defsubst wl-summary-narrow-to-region (beg end)
1434   (narrow-to-region
1435    (save-excursion
1436      (goto-char beg)
1437      (beginning-of-line)
1438      (point))
1439    (save-excursion
1440      (goto-char end)
1441      (if (eq (current-column) 0) (beginning-of-line) (end-of-line))
1442      (point))))
1443
1444 (defun wl-summary-prefetch-region-no-mark (beg end &optional prefetch-marks)
1445   (interactive "r")
1446   (let ((count 0)
1447         targets
1448         mark length
1449         entity msg
1450         start-pos pos)
1451     (save-excursion
1452       (setq start-pos (point))
1453       (save-restriction
1454         (wl-summary-narrow-to-region beg end)
1455         ;; collect prefetch targets.
1456         (message "Collecting marks...")
1457         (goto-char (point-min))
1458         (while (not (eobp))
1459           (setq mark (wl-summary-persistent-mark)
1460                 msg (wl-summary-message-number))
1461           (if (or (and (null prefetch-marks)
1462                        msg
1463                        (null (elmo-file-cache-exists-p
1464                               (elmo-message-field
1465                                wl-summary-buffer-elmo-folder
1466                                msg
1467                                'message-id))))
1468                   (member mark prefetch-marks))
1469               (setq targets (nconc targets (list msg))))
1470           (setq entity (wl-thread-get-entity msg))
1471           (if (or (not (eq wl-summary-buffer-view 'thread))
1472                   (wl-thread-entity-get-opened entity))
1473               (); opened. no hidden children.
1474             (setq targets (nconc
1475                            targets
1476                            (wl-thread-get-children-msgs-uncached
1477                             msg prefetch-marks))))
1478           (forward-line 1))
1479         (setq length (length targets))
1480         (message "Prefetching...")
1481         (while targets
1482           (when (if (not (wl-thread-entity-parent-invisible-p
1483                           (wl-thread-get-entity (car targets))))
1484                     (progn
1485                       (wl-summary-jump-to-msg (car targets))
1486                       (wl-summary-prefetch-msg
1487                        (wl-summary-message-number)))
1488                   (wl-summary-prefetch-msg (car targets)))
1489             (message "Prefetching... %d/%d message(s)"
1490                      (setq count (+ 1 count)) length))
1491           (setq targets (cdr targets)))
1492         (message "Prefetched %d/%d message(s)" count length)
1493         (cons count length)))))
1494
1495 (defun wl-summary-delete-marks-on-buffer (marks)
1496   (while marks
1497     (wl-summary-unmark (pop marks))))
1498
1499 (defun wl-summary-delete-copy-marks-on-buffer (copies)
1500   (wl-summary-delete-marks-on-buffer copies))
1501
1502 ;;;
1503 (defun wl-summary-delete-all-target-marks ()
1504   (wl-summary-delete-marks-on-buffer wl-summary-buffer-target-mark-list))
1505
1506 (defun wl-summary-mark-as-read-region (beg end)
1507   (interactive "r")
1508   (save-excursion
1509     (save-restriction
1510       (wl-summary-narrow-to-region beg end)
1511       (goto-char (point-min))
1512       (if (eq wl-summary-buffer-view 'thread)
1513           (let (number-list)
1514             (while (not (eobp))
1515               (let* ((number (wl-summary-message-number))
1516                      (entity (wl-thread-get-entity number)))
1517                 (if (wl-thread-entity-get-opened entity)
1518                     (setq number-list (append number-list (list number)))
1519                   (setq number-list
1520                         (append number-list
1521                                 (wl-thread-get-children-msgs number))))
1522                 (forward-line 1)))
1523             (wl-summary-mark-as-read number-list))
1524         (let (number-list)
1525           (while (not (eobp))
1526             (setq number-list
1527                   (append number-list (list (wl-summary-message-number))))
1528             (forward-line 1))
1529           (wl-summary-mark-as-read number-list))))))
1530
1531 (defun wl-summary-mark-as-unread-region (beg end)
1532   (interactive "r")
1533   (save-excursion
1534     (save-restriction
1535       (wl-summary-narrow-to-region beg end)
1536       (goto-char (point-min))
1537       (if (eq wl-summary-buffer-view 'thread)
1538           (let (number-list)
1539             (while (not (eobp))
1540               (let* ((number (wl-summary-message-number))
1541                      (entity (wl-thread-get-entity number)))
1542                 (if (wl-thread-entity-get-opened entity)
1543                     (setq number-list (append number-list (list number)))
1544                   (setq number-list
1545                         (append number-list
1546                                 (wl-thread-get-children-msgs number))))
1547                 (forward-line 1)))
1548             (wl-summary-mark-as-unread number-list))
1549         (let (number-list)
1550           (while (not (eobp))
1551             (setq number-list
1552                   (append number-list (list (wl-summary-message-number))))
1553             (forward-line 1))
1554           (wl-summary-mark-as-unread number-list))))))
1555
1556 (defun wl-summary-mark-as-important-region (beg end)
1557   (interactive "r")
1558   (save-excursion
1559     (save-restriction
1560       (wl-summary-narrow-to-region beg end)
1561       (goto-char (point-min))
1562       (let ((inverse (elmo-message-flagged-p wl-summary-buffer-elmo-folder
1563                                              (wl-summary-message-number)
1564                                              'important)))
1565         (if (eq wl-summary-buffer-view 'thread)
1566             (while (not (eobp))
1567               (let* ((number (wl-summary-message-number))
1568                      (entity (wl-thread-get-entity number))
1569                      children)
1570                 (if (wl-thread-entity-get-opened entity)
1571                     ;; opened...mark line.
1572                     ;; Crossposts are not processed
1573                     (wl-summary-mark-as-important-internal inverse)
1574                   ;; closed
1575                   (wl-summary-mark-as-important-internal
1576                    inverse
1577                    (wl-thread-get-children-msgs number)))
1578                 (forward-line 1)))
1579           (while (not (eobp))
1580             (wl-summary-mark-as-important-internal inverse)
1581             (forward-line 1))))))
1582   (wl-summary-count-unread)
1583   (wl-summary-update-modeline))
1584
1585 (defun wl-summary-mark-as-answered-region (beg end)
1586   (interactive "r")
1587   (save-excursion
1588     (save-restriction
1589       (wl-summary-narrow-to-region beg end)
1590       (goto-char (point-min))
1591       (let ((inverse (elmo-message-flagged-p wl-summary-buffer-elmo-folder
1592                                              (wl-summary-message-number)
1593                                              'answered)))
1594         (if (eq wl-summary-buffer-view 'thread)
1595             (while (not (eobp))
1596               (let* ((number (wl-summary-message-number))
1597                      (entity (wl-thread-get-entity number))
1598                      children)
1599                 (if (wl-thread-entity-get-opened entity)
1600                     ;; opened...mark line.
1601                     ;; Crossposts are not processed
1602                     (wl-summary-mark-as-answered-internal inverse)
1603                   ;; closed
1604                   (wl-summary-mark-as-answered-internal
1605                    inverse
1606                    (wl-thread-get-children-msgs number)))
1607                 (forward-line 1)))
1608           (while (not (eobp))
1609             (wl-summary-mark-as-answered-internal inverse)
1610             (forward-line 1))))))
1611   (wl-summary-count-unread)
1612   (wl-summary-update-modeline))
1613
1614 (defun wl-summary-mark-as-read-all ()
1615   (interactive)
1616   (if (or (not (interactive-p))
1617           (y-or-n-p "Mark all messages as read? "))
1618       (let ((folder wl-summary-buffer-elmo-folder)
1619             (cur-buf (current-buffer)))
1620         (message "Setting all msgs as read...")
1621         (elmo-folder-set-flag
1622          folder
1623          (elmo-folder-list-flagged folder 'unread 'in-msgdb)
1624          'read)
1625         (save-excursion
1626           (goto-char (point-min))
1627           (while (not (eobp))
1628             (wl-summary-update-persistent-mark)
1629             (forward-line 1)))
1630         (wl-folder-update-unread (wl-summary-buffer-folder-name) 0)
1631         (setq wl-summary-buffer-unread-count 0)
1632         (setq wl-summary-buffer-new-count    0)
1633         (wl-summary-update-modeline)
1634         (message "Setting all msgs as read...done"))))
1635
1636 (defun wl-summary-delete-cache ()
1637   "Delete cache of current message."
1638   (interactive)
1639   (save-excursion
1640     (let* ((folder wl-summary-buffer-elmo-folder)
1641            number)
1642       (setq number (wl-summary-message-number))
1643       (elmo-message-set-cached folder number nil)
1644       (when (wl-summary-update-persistent-mark)
1645         (elmo-file-cache-delete
1646          (elmo-file-cache-get-path
1647           (elmo-message-field wl-summary-buffer-elmo-folder
1648                               number
1649                               'message-id)))))))
1650
1651 (defun wl-summary-resume-cache-status ()
1652   "Resume the cache status of all messages in the current folder."
1653   (interactive)
1654   (let ((folder wl-summary-buffer-elmo-folder)
1655         number msgid)
1656     (message "Resuming cache status...")
1657     (save-excursion
1658       (goto-char (point-min))
1659       (while (not (eobp))
1660         (setq number (wl-summary-message-number))
1661         (setq msgid (elmo-message-field folder number 'message-id))
1662         (elmo-message-set-cached folder number
1663                                  (elmo-file-cache-exists-p msgid))
1664         (wl-summary-update-persistent-mark)
1665         (forward-line 1))
1666       (wl-summary-count-unread)
1667       (wl-summary-update-modeline)
1668       (message "Resuming cache status...done"))))
1669
1670 (defun wl-summary-delete-messages-on-buffer (msgs &optional deleting-info)
1671   (interactive)
1672   (save-excursion
1673     (let ((inhibit-read-only t)
1674           (buffer-read-only nil)
1675           (msgs2 msgs)
1676           (len (length msgs))
1677           (i 0)
1678           ;(deleting-info (or deleting-info "Deleting..."))
1679           update-list)
1680       (elmo-kill-buffer wl-summary-search-buf-name)
1681       (while msgs
1682         (if (eq wl-summary-buffer-view 'thread)
1683             (progn
1684               ;; don't use wl-append(nconc), because list is broken. ...why?
1685               (setq update-list
1686                     (append update-list
1687                             (wl-thread-delete-message (car msgs))))
1688               (setq update-list (delq (car msgs) update-list)))
1689           (goto-char (point-min))
1690           (if (wl-summary-jump-to-msg (car msgs))
1691               (progn
1692                 (delete-region (point-at-bol) (point-at-eol))
1693                 (delete-char 1) ; delete '\n'
1694                 (setq wl-summary-buffer-number-list
1695                       (delq (car msgs) wl-summary-buffer-number-list)))))
1696 ;       (when (> len elmo-display-progress-threshold)
1697 ;         (setq i (1+ i))
1698 ;         (if (or (zerop (% i 5)) (= i len))
1699 ;             (elmo-display-progress
1700 ;              'wl-summary-delete-messages-on-buffer deleting-info
1701 ;              (/ (* i 100) len))))
1702         (setq msgs (cdr msgs)))
1703       (when (eq wl-summary-buffer-view 'thread)
1704         (wl-thread-update-line-msgs (elmo-uniq-list update-list))
1705         (wl-thread-cleanup-symbols msgs2))
1706       ;;(message (concat deleting-info "done"))
1707       (wl-summary-count-unread)
1708       (wl-summary-update-modeline)
1709       (wl-summary-folder-info-update))))
1710
1711 (defun wl-summary-update-status-marks (beg end &optional check)
1712   "Synchronize status marks on current buffer to the msgdb."
1713   (interactive "r")
1714   (save-excursion
1715     (goto-char beg)
1716     (while (and (< (point) end) (not (eobp)))
1717       (when (or (not check)
1718                 (let ((number (wl-summary-message-number)))
1719                   (when (memq number wl-summary-buffer-unsync-mark-number-list)
1720                     (setq wl-summary-buffer-unsync-mark-number-list
1721                           (delq number
1722                                 wl-summary-buffer-unsync-mark-number-list))
1723                     t)))
1724         (wl-summary-update-persistent-mark))
1725       (forward-line 1))))
1726
1727 (defun wl-summary-update-mark-window (&optional win beg)
1728   "Update persistent mark in visible summary window.
1729 This function is defined for `window-scroll-functions'"
1730   (with-current-buffer (window-buffer win)
1731     (when (eq major-mode 'wl-summary-mode)
1732       (let ((start (window-start win))
1733             (end (condition-case nil
1734                      (window-end win t) ; old emacsen doesn't support 2nd arg.
1735                    (error (window-end win)))))
1736         (wl-summary-update-status-marks start end 'check)))))
1737
1738 (defun wl-summary-insert-message (&rest args)
1739   (if (eq wl-summary-buffer-view 'thread)
1740       (apply 'wl-summary-insert-thread args)
1741     (apply 'wl-summary-insert-sequential args)))
1742
1743 (defun wl-summary-sort ()
1744   (interactive)
1745   (wl-summary-rescan
1746    (completing-read
1747     (format "Sort by (%s): " (symbol-name wl-summary-default-sort-spec))
1748     (mapcar (lambda (spec)
1749               (list (symbol-name spec)))
1750             wl-summary-sort-specs)
1751     nil t nil nil (symbol-name wl-summary-default-sort-spec))))
1752
1753 (defun wl-summary-sync-marks ()
1754   "Update persistent marks in summary."
1755   (interactive)
1756   (let (diff diffs mes)
1757     ;; synchronize marks.
1758     (when (not (eq (elmo-folder-type-internal
1759                     wl-summary-buffer-elmo-folder)
1760                    'internal))
1761       (message "Updating marks...")
1762       (setq diff (elmo-list-diff (elmo-folder-list-flagged
1763                                   wl-summary-buffer-elmo-folder
1764                                   'important)
1765                                  (elmo-folder-list-flagged
1766                                   wl-summary-buffer-elmo-folder
1767                                   'important 'in-msgdb)))
1768       (setq diffs (cadr diff)) ; important-deletes
1769       (setq mes (format "Updated (-%d" (length diffs)))
1770       (while diffs
1771         (wl-summary-mark-as-unimportant (car diffs) 'no-server)
1772         (setq diffs (cdr diffs)))
1773       (setq diffs (car diff)) ; important-appends
1774       (setq mes (concat mes (format "/+%d) important," (length diffs))))
1775       (while diffs
1776         (wl-summary-mark-as-important (car diffs) 'no-server)
1777         (setq diffs (cdr diffs)))
1778
1779       (setq diff (elmo-list-diff (elmo-folder-list-flagged
1780                                   wl-summary-buffer-elmo-folder
1781                                   'answered)
1782                                  (elmo-folder-list-flagged
1783                                   wl-summary-buffer-elmo-folder
1784                                   'answered 'in-msgdb)))
1785       (setq diffs (cadr diff))
1786       (setq mes (concat mes (format "(-%d" (length diffs))))
1787       (while diffs
1788         (wl-summary-mark-as-unanswered (car diffs) 'no-modeline)
1789         (setq diffs (cdr diffs)))
1790       (setq diffs (car diff)) ; unread-appends
1791       (setq mes (concat mes (format "/+%d) answered mark(s)," (length diffs))))
1792       (while diffs
1793         (wl-summary-mark-as-answered (car diffs) 'no-modeline)
1794         (setq diffs (cdr diffs)))
1795
1796       (setq diff (elmo-list-diff (elmo-folder-list-flagged
1797                                   wl-summary-buffer-elmo-folder
1798                                   'unread)
1799                                  (elmo-folder-list-flagged
1800                                   wl-summary-buffer-elmo-folder
1801                                   'unread 'in-msgdb)))
1802       (setq diffs (cadr diff))
1803       (setq mes (concat mes (format "(-%d" (length diffs))))
1804       (while diffs
1805         (wl-summary-mark-as-read (car diffs) 'no-folder 'no-modeline)
1806         (setq diffs (cdr diffs)))
1807       (setq diffs (car diff)) ; unread-appends
1808       (setq mes (concat mes (format "/+%d) unread mark(s)." (length diffs))))
1809       (while diffs
1810         (wl-summary-mark-as-unread (car diffs) 'no-folder 'no-modeline)
1811         (setq diffs (cdr diffs)))
1812       (if (interactive-p) (message "%s" mes)))))
1813
1814 (defun wl-summary-sync-update (&optional unset-cursor
1815                                          disable-killed
1816                                          sync-all
1817                                          no-check)
1818   "Update the summary view to the newest folder status."
1819   (interactive)
1820   (let* ((folder wl-summary-buffer-elmo-folder)
1821          (elmo-mime-charset wl-summary-buffer-mime-charset)
1822          (inhibit-read-only t)
1823          (buffer-read-only nil)
1824          gc-message
1825          overview
1826          curp num i diff
1827          append-list delete-list crossed
1828          update-thread update-top-list
1829          expunged mes entity)
1830     (unwind-protect
1831         (progn
1832           (unless wl-summary-buffer-elmo-folder
1833             (error "(Internal error) Folder is not set:%s" (buffer-name
1834                                                             (current-buffer))))
1835           ;; Flush pending append operations (disconnected operation).
1836           ;;(setq seen-list
1837           ;;(wl-summary-flush-pending-append-operations seen-list))
1838           (goto-char (point-max))
1839           (wl-folder-confirm-existence folder (elmo-folder-plugged-p folder))
1840           (setq crossed (elmo-folder-synchronize folder
1841                                                  disable-killed
1842                                                  sync-all
1843                                                  no-check))
1844           (if crossed
1845               (progn
1846                 ;; Setup sync-all
1847                 (if sync-all (wl-summary-sync-all-init))
1848                 (setq diff (elmo-list-diff (elmo-folder-list-messages
1849                                             folder
1850                                             (not disable-killed)
1851                                             'in-msgdb)
1852                                            wl-summary-buffer-number-list))
1853                 (setq append-list (car diff))
1854                 (setq delete-list (cadr diff))
1855
1856                 (when delete-list
1857                   (wl-summary-delete-messages-on-buffer delete-list))
1858                 (unless wl-summary-lazy-update-mark
1859                   (wl-summary-update-status-marks (point-min) (point-max)))
1860                 (when (and wl-summary-lazy-highlight
1861                            wl-summary-lazy-update-mark)
1862                   (let (buffer-read-only)
1863                     (put-text-property (point-min) (point-max) 'face nil))
1864                   (run-hooks 'wl-summary-buffer-window-scroll-functions))
1865                 (setq num (length append-list))
1866                 (setq i 0)
1867                 (setq wl-summary-delayed-update nil)
1868                 (elmo-kill-buffer wl-summary-search-buf-name)
1869                 (dolist (number append-list)
1870                   (setq entity (elmo-message-entity folder number))
1871                   (when (setq update-thread
1872                               (wl-summary-insert-message
1873                                entity folder
1874                                (not sync-all)))
1875                     (wl-append update-top-list update-thread))
1876                   (if elmo-use-database
1877                       (elmo-database-msgid-put
1878                        (car entity) (elmo-folder-name-internal folder)
1879                        (elmo-message-entity-number entity)))
1880                   (when (> num elmo-display-progress-threshold)
1881                     (setq i (+ i 1))
1882                     (if (or (zerop (% i 5)) (= i num))
1883                         (elmo-display-progress
1884                          'wl-summary-sync-update
1885                          (if (eq wl-summary-buffer-view 'thread)
1886                              "Making thread..."
1887                            "Inserting message...")
1888                          (/ (* i 100) num)))))
1889                 (when wl-summary-delayed-update
1890                   (while wl-summary-delayed-update
1891                     (message "Parent (%d) of message %d is no entity"
1892                              (caar wl-summary-delayed-update)
1893                              (elmo-message-entity-number
1894                               (cdar wl-summary-delayed-update)))
1895                     (when (setq update-thread
1896                                 (wl-summary-insert-message
1897                                  (cdar wl-summary-delayed-update)
1898                                  wl-summary-buffer-elmo-folder
1899                                  (not sync-all) t))
1900                       (wl-append update-top-list update-thread))
1901                     (setq wl-summary-delayed-update
1902                           (cdr wl-summary-delayed-update))))
1903                 (when (and (eq wl-summary-buffer-view 'thread)
1904                            update-top-list)
1905                   (wl-thread-update-indent-string-thread
1906                    (elmo-uniq-list update-top-list)))
1907                 (message (if (eq wl-summary-buffer-view 'thread)
1908                              "Making thread...done"
1909                            "Inserting message...done"))
1910                 (when (or delete-list append-list)
1911                   (wl-summary-set-message-modified))
1912                 (when (and sync-all (eq wl-summary-buffer-view 'thread))
1913                   (elmo-kill-buffer wl-summary-search-buf-name)
1914                   (message "Inserting message...")
1915                   (wl-thread-insert-top)
1916                   (message "Inserting message...done"))
1917                 (if elmo-use-database
1918                     (elmo-database-close))
1919                 (run-hooks 'wl-summary-sync-updated-hook)
1920                 (setq mes
1921                       (if (and (eq (length delete-list) 0)
1922                                (eq num 0))
1923                           (format
1924                            "No updates for \"%s\"" (elmo-folder-name-internal
1925                                                     folder))
1926                         (format "Updated (-%d/+%d) message(s)"
1927                                 (length delete-list) num))))
1928             (setq mes "Quit updating.")))
1929       ;; synchronize marks.
1930       (if (and crossed wl-summary-auto-sync-marks)
1931           (wl-summary-sync-marks))
1932       ;; scoring
1933       (when wl-use-scoring
1934         (setq wl-summary-scored nil)
1935         (wl-summary-score-headers (and sync-all
1936                                        (wl-summary-rescore-msgs
1937                                         wl-summary-buffer-number-list))
1938                                   sync-all)
1939         (when (and wl-summary-scored
1940                    (setq expunged (wl-summary-score-update-all-lines)))
1941           (setq mes (concat mes
1942                             (format " (%d expunged)"
1943                                     (length expunged))))))
1944       (if (and crossed (> crossed 0))
1945           (setq mes
1946                 (if mes
1947                     (concat mes
1948                             (format " (%d crosspost)" crossed))
1949                   (format "%d crosspost message(s)" crossed)))
1950         (and mes (setq mes (concat mes "."))))
1951       ;; Update Folder mode
1952       (wl-folder-set-folder-updated
1953        (elmo-folder-name-internal folder)
1954        (list 0
1955              (let ((lst (wl-summary-count-unread)))
1956                (+ (car lst) (nth 1 lst)))
1957              (elmo-folder-length folder)))
1958       (wl-summary-update-modeline)
1959       ;;
1960       (unless unset-cursor
1961         (goto-char (point-min))
1962         (if (not (wl-summary-cursor-down t))
1963             (progn
1964               (goto-char (point-max))
1965               (forward-line -1))
1966           (if (and wl-summary-highlight
1967                    (not wl-summary-lazy-highlight)
1968                    (not (get-text-property (point) 'face)))
1969               (save-excursion
1970                 (forward-line (- 0
1971                                  (or
1972                                   wl-summary-partial-highlight-above-lines
1973                                   wl-summary-highlight-partial-threshold)))
1974                 (wl-highlight-summary (point) (point-max))))))
1975       (wl-delete-all-overlays)
1976       (set-buffer-modified-p nil)
1977       (if mes (message "%s" mes)))))
1978
1979 (defun wl-summary-set-score-mark (mark)
1980   (save-excursion
1981     (beginning-of-line)
1982     (let ((cur-mark (wl-summary-temp-mark)))
1983       (when (member cur-mark (list " "
1984                                    wl-summary-score-below-mark
1985                                    wl-summary-score-over-mark))
1986         (wl-summary-put-temp-mark mark)
1987         (if wl-summary-highlight
1988             (wl-highlight-summary-current-line))
1989         (set-buffer-modified-p nil)))))
1990
1991 (defun wl-summary-get-score-mark (msg-num)
1992   (let ((score (cdr (assq msg-num wl-summary-scored))))
1993     (if score
1994         (cond ((< score wl-summary-default-score)
1995                "-")
1996               ((> score wl-summary-default-score)
1997                "+")))))
1998
1999 (defun wl-summary-update-modeline ()
2000   (setq wl-summary-buffer-mode-line
2001         (funcall wl-summary-buffer-mode-line-formatter)))
2002
2003 (defun wl-summary-jump-to-msg (&optional number)
2004   (interactive)
2005   (let ((num (or number
2006                  (string-to-int
2007                   (read-from-minibuffer "Jump to Message(No.): ")))))
2008     (setq num (int-to-string num))
2009     (beginning-of-line)
2010     (if (or (and (re-search-forward (concat "\r" num "[^0-9]") nil t)
2011                  (progn (backward-char 1) t))
2012             (re-search-backward (concat "\r" num "[^0-9]") nil t))
2013         (progn (beginning-of-line) t)
2014       nil)))
2015
2016 (defun wl-summary-highlight-msgs (msgs)
2017   (save-excursion
2018     (let ((len (length msgs))
2019           i)
2020       (message "Hilighting...")
2021       (setq i 0)
2022       (while msgs
2023         (if (wl-summary-jump-to-msg (car msgs))
2024             (wl-highlight-summary-current-line))
2025         (setq msgs (cdr msgs))
2026         (when (> len elmo-display-progress-threshold)
2027           (setq i (+ i 1))
2028           (if (or (zerop (% i 5)) (= i len))
2029               (elmo-display-progress
2030                'wl-summary-highlight-msgs "Highlighting..."
2031                (/ (* i 100) len)))))
2032       (message "Highlighting...done"))))
2033
2034 (defun wl-summary-message-number ()
2035   (save-excursion
2036     (beginning-of-line)
2037     (if (or (re-search-forward "\r\\(-?[0-9]+\\)" (point-at-eol) t)
2038             (re-search-forward "^ *\\(-?[0-9]+\\)" (point-at-eol) t))
2039         (string-to-int (wl-match-buffer 1))
2040       nil)))
2041
2042 (defun wl-summary-delete-all-msgs ()
2043   (interactive)
2044   (let ((cur-buf (current-buffer))
2045         (dels (elmo-folder-list-messages wl-summary-buffer-elmo-folder)))
2046     (set-buffer cur-buf)
2047     (if (null dels)
2048         (message "No message to delete.")
2049       (if (y-or-n-p (format "%s has %d message(s).  Delete all? "
2050                             (wl-summary-buffer-folder-name)
2051                             (length dels)))
2052           (progn
2053             (message "Deleting...")
2054             (elmo-folder-move-messages wl-summary-buffer-elmo-folder dels
2055                                        'null)
2056             (wl-summary-set-message-modified)
2057             (wl-folder-set-folder-updated (wl-summary-buffer-folder-name)
2058                                           (list 0 0 0))
2059 ;;; for thread.
2060 ;;;         (setq wl-thread-top-entity '(nil t nil nil))
2061             (setq wl-summary-buffer-unread-count 0)
2062             (setq wl-summary-buffer-new-count    0)
2063             (wl-summary-update-modeline)
2064             (set-buffer cur-buf)
2065             (let ((inhibit-read-only t)
2066                   (buffer-read-only nil))
2067               (erase-buffer))
2068 ;;;         (if wl-summary-cache-use (wl-summary-save-view-cache))
2069             (message "Deleting...done")
2070             t)
2071         nil))))
2072
2073 (defun wl-summary-toggle-thread (&optional arg)
2074   "Toggle thread status (T)hread and (S)equential.
2075 If ARG, without confirm."
2076   (interactive "P")
2077   (when (or arg
2078             (y-or-n-p (format "Toggle threading? (y=%s): "
2079                               (if (eq wl-summary-buffer-view 'thread)
2080                                   "\"off\"" "\"on\""))))
2081     (if (eq wl-summary-buffer-view 'thread)
2082         (setq wl-summary-buffer-view 'sequence)
2083       (setq wl-summary-buffer-view 'thread))
2084     (wl-summary-update-modeline)
2085     (force-mode-line-update)
2086     (wl-summary-rescan)))
2087
2088 (defun wl-summary-load-file-object (filename)
2089   "Load lisp object from dir."
2090   (save-excursion
2091     (let ((tmp-buffer (get-buffer-create " *wl-summary-load-file-object*"))
2092           insert-file-contents-pre-hook   ; To avoid autoconv-xmas...
2093           insert-file-contents-post-hook
2094           ret-val)
2095       (if (not (file-readable-p filename))
2096           ()
2097         (set-buffer tmp-buffer)
2098         (as-binary-input-file (insert-file-contents filename))
2099         (setq ret-val
2100               (condition-case nil
2101                   (read (current-buffer))
2102                 (error (error "Reading failed")))))
2103       (kill-buffer tmp-buffer)
2104       ret-val)))
2105
2106 (defun wl-summary-goto-folder (&optional arg)
2107   (interactive "P")
2108   (wl-summary-goto-folder-subr nil nil nil nil t nil arg))
2109
2110 (defun wl-summary-goto-folder-sticky ()
2111   (interactive)
2112   (wl-summary-goto-folder-subr nil nil nil t t))
2113
2114 (defun wl-summary-goto-last-visited-folder ()
2115   (interactive)
2116   (let ((entity
2117          (wl-folder-search-entity-by-name wl-summary-last-visited-folder
2118                                           wl-folder-entity
2119                                           'folder)))
2120     (if entity (wl-folder-set-current-entity-id
2121                 (wl-folder-get-entity-id entity))))
2122   (wl-summary-goto-folder-subr wl-summary-last-visited-folder nil nil nil t))
2123
2124 (defun wl-summary-sticky-p (&optional folder)
2125   (if folder
2126       (get-buffer (wl-summary-sticky-buffer-name
2127                    (elmo-folder-name-internal folder)))
2128     (not (string= wl-summary-buffer-name (buffer-name)))))
2129
2130 (defun wl-summary-always-sticky-folder-p (folder)
2131   (or (eq t wl-summary-always-sticky-folder-list)
2132       (wl-string-match-member
2133        (elmo-folder-name-internal folder)
2134        wl-summary-always-sticky-folder-list)))
2135
2136 (defun wl-summary-stick (&optional force)
2137   "Make current summary buffer sticky."
2138   (interactive "P")
2139   (if (wl-summary-sticky-p)
2140       (message "Current summary buffer is already sticky.")
2141     (when (or force (y-or-n-p "Stick current summary buffer? "))
2142       (wl-summary-toggle-disp-msg 'off)
2143       (wl-summary-switch-to-clone-buffer
2144        (wl-summary-sticky-buffer-name
2145         (wl-summary-buffer-folder-name)))
2146 ;;; ???hang up
2147 ;;;   (rename-buffer (wl-summary-sticky-buffer-name
2148 ;;;                   (wl-summary-buffer-folder-name))))
2149       (message "Folder `%s' is now sticky." (wl-summary-buffer-folder-name)))))
2150
2151 (defun wl-summary-switch-to-clone-buffer (buffer-name)
2152   (let ((cur-buf (current-buffer))
2153         (msg (wl-summary-message-number))
2154         (buf (get-buffer-create buffer-name))
2155         (folder wl-summary-buffer-elmo-folder)
2156         (copy-variables
2157          (append '(wl-summary-buffer-view
2158                    wl-summary-buffer-temp-mark-list
2159                    wl-summary-buffer-target-mark-list
2160                    wl-summary-buffer-elmo-folder
2161                    wl-summary-buffer-number-column
2162                    wl-summary-buffer-temp-mark-column
2163                    wl-summary-buffer-persistent-mark-column
2164                    wl-summary-buffer-message-modified
2165                    wl-summary-buffer-thread-modified
2166                    wl-summary-buffer-number-list
2167                    wl-summary-buffer-unsync-mark-number-list
2168                    wl-summary-buffer-folder-name
2169                    wl-summary-buffer-line-formatter)
2170                  (and (eq wl-summary-buffer-view 'thread)
2171                       '(wl-thread-entity-hashtb
2172                         wl-thread-entities
2173                         wl-thread-entity-list))
2174                  (and wl-use-scoring
2175                       '(wl-summary-scored
2176                         wl-summary-default-score
2177                         wl-summary-important-above
2178                         wl-summary-target-above
2179                         wl-summary-mark-below
2180                         wl-summary-expunge-below))
2181                  (and (featurep 'wl-score)
2182                       '(wl-current-score-file
2183                         wl-score-alist)))))
2184     (set-buffer buf)
2185     (wl-summary-mode)
2186     (wl-summary-buffer-set-folder folder)
2187     (let ((buffer-read-only nil))
2188       (insert-buffer cur-buf))
2189     (set-buffer-modified-p nil)
2190     (while copy-variables
2191       (set (car copy-variables)
2192            (save-excursion
2193              (set-buffer cur-buf)
2194              (symbol-value (car copy-variables))))
2195       (setq copy-variables (cdr copy-variables)))
2196     (switch-to-buffer buf)
2197     (kill-buffer cur-buf)
2198     (wl-summary-count-unread)
2199     (wl-summary-update-modeline)
2200     (if msg
2201         (if (eq wl-summary-buffer-view 'thread)
2202             (wl-thread-jump-to-msg msg)
2203           (wl-summary-jump-to-msg msg))
2204       (goto-char (point-max))
2205       (beginning-of-line))))
2206
2207 (defun wl-summary-get-buffer (folder)
2208   (or (and folder
2209            (get-buffer (wl-summary-sticky-buffer-name folder)))
2210       (get-buffer wl-summary-buffer-name)))
2211
2212 (defun wl-summary-get-buffer-create (name &optional force-sticky)
2213   (if force-sticky
2214       (get-buffer-create
2215        (wl-summary-sticky-buffer-name name))
2216     (or (get-buffer (wl-summary-sticky-buffer-name name))
2217         (get-buffer-create wl-summary-buffer-name))))
2218
2219 (defun wl-summary-make-number-list ()
2220   (save-excursion
2221     (goto-char (point-min))
2222     (setq wl-summary-buffer-number-list nil)
2223     (while (not (eobp))
2224       (setq wl-summary-buffer-number-list
2225             (cons (wl-summary-message-number)
2226                   wl-summary-buffer-number-list))
2227       (forward-line 1))
2228     (setq wl-summary-buffer-number-list
2229           (nreverse wl-summary-buffer-number-list))))
2230
2231 (defun wl-summary-auto-select-msg-p (unread-msg)
2232   (and unread-msg
2233        (not (elmo-message-flagged-p wl-summary-buffer-elmo-folder
2234                                     unread-msg
2235                                     'important))))
2236
2237 (defsubst wl-summary-open-folder (folder)
2238   ;; Select folder
2239   (let ((elmo-mime-charset wl-summary-buffer-mime-charset))
2240     (unwind-protect
2241         (elmo-folder-open folder 'load-msgdb)
2242       ;; For compatibility
2243       (setq wl-summary-buffer-folder-name (elmo-folder-name-internal
2244                                            folder)))))
2245
2246 (defun wl-summary-goto-folder-subr (&optional name scan-type other-window
2247                                               sticky interactive scoring
2248                                               force-exit)
2249   "Display target folder on summary."
2250   (interactive)
2251   (let* ((keep-cursor (memq this-command
2252                             wl-summary-keep-cursor-command))
2253          (name (or name (wl-summary-read-folder wl-default-folder)))
2254          (cur-fld wl-summary-buffer-elmo-folder)
2255          folder buf mes hilit reuse-buf
2256          retval entity)
2257     (if (string= name "")
2258         (setq name wl-default-folder))
2259     (setq folder (wl-folder-get-elmo-folder name))
2260     (when (and (not (string=
2261                      (and cur-fld (elmo-folder-name-internal cur-fld))
2262                      (elmo-folder-name-internal folder))) ; folder is moved.
2263                (eq major-mode 'wl-summary-mode)) ; called in summary.
2264       (setq wl-summary-last-visited-folder (wl-summary-buffer-folder-name))
2265       (run-hooks 'wl-summary-exit-pre-hook)
2266       (if (or force-exit (not (wl-summary-sticky-p)))
2267           (wl-summary-cleanup-temp-marks (wl-summary-sticky-p)))
2268       (wl-summary-save-view)
2269       (elmo-folder-commit wl-summary-buffer-elmo-folder)
2270       (if (and (wl-summary-sticky-p) force-exit)
2271           (kill-buffer (current-buffer))))
2272     (setq buf (wl-summary-get-buffer-create (elmo-folder-name-internal folder)
2273                                             sticky))
2274     (setq reuse-buf
2275           (save-excursion
2276             (set-buffer buf)
2277             (string= (elmo-folder-name-internal folder)
2278                      (wl-summary-buffer-folder-name))))
2279     (unwind-protect
2280         (if reuse-buf
2281             (if interactive
2282                 (switch-to-buffer buf)
2283               (set-buffer buf))
2284           (if other-window
2285               (delete-other-windows))
2286           (set-buffer buf)
2287           (unless (eq major-mode 'wl-summary-mode)
2288             (wl-summary-mode))
2289           (wl-summary-buffer-set-folder folder)
2290           (setq wl-summary-buffer-disp-msg nil)
2291           (setq wl-summary-buffer-last-displayed-msg nil)
2292           (setq wl-summary-buffer-current-msg nil)
2293           (let ((inhibit-read-only t)
2294                 (buffer-read-only nil))
2295             (erase-buffer)
2296             ;; Resume summary view
2297             (if wl-summary-cache-use
2298                 (let* ((dir (elmo-folder-msgdb-path folder))
2299                        (cache (expand-file-name wl-summary-cache-file dir))
2300                        (view (expand-file-name wl-summary-view-file dir)))
2301                   (when (file-exists-p cache)
2302                     (insert-file-contents-as-binary cache)
2303                     (elmo-set-buffer-multibyte
2304                      default-enable-multibyte-characters)
2305                     (decode-mime-charset-region
2306                      (point-min)(point-max)
2307                      wl-summary-buffer-mime-charset 'LF))
2308                   (if (file-exists-p view)
2309                       (setq wl-summary-buffer-view
2310                             (wl-summary-load-file-object view))
2311                     (setq wl-summary-buffer-view
2312                           (or (wl-get-assoc-list-value
2313                                wl-summary-default-view-alist
2314                                (elmo-folder-name-internal folder))
2315                               wl-summary-default-view)))
2316                   (wl-thread-resume-entity folder)
2317                   (wl-summary-open-folder folder)
2318                   (wl-summary-detect-mark-position))
2319               (setq wl-summary-buffer-view
2320                     (wl-summary-load-file-object
2321                      (expand-file-name wl-summary-view-file
2322                                        (elmo-folder-msgdb-path folder))))
2323               (wl-summary-open-folder folder)
2324               (wl-summary-detect-mark-position)
2325               (wl-summary-rescan))
2326             (wl-summary-count-unread)
2327             (wl-summary-update-modeline)))
2328       (unless (eq wl-summary-buffer-view 'thread)
2329         (wl-summary-make-number-list))
2330       (setq wl-summary-buffer-unsync-mark-number-list
2331             (copy-sequence wl-summary-buffer-number-list))
2332       (when (and wl-summary-cache-use
2333                  (or (and wl-summary-check-line-format
2334                           (wl-summary-line-format-changed-p))
2335                      (wl-summary-view-old-p)))
2336         (wl-summary-rescan))
2337       (wl-summary-toggle-disp-msg (if wl-summary-buffer-disp-msg 'on 'off))
2338       (unless (and reuse-buf keep-cursor)
2339         (unwind-protect
2340             (let ((wl-use-scoring
2341                    (if (or scoring interactive) wl-use-scoring)))
2342               (if (and (not scan-type)
2343                        interactive
2344                        (not wl-ask-range))
2345                   (setq scan-type (wl-summary-get-sync-range folder)))
2346               (cond
2347                ((eq scan-type nil)
2348                 (wl-summary-sync 'unset-cursor))
2349                ((eq scan-type 'all)
2350                 (wl-summary-sync 'unset-cursor "all"))
2351                ((eq scan-type 'no-sync))
2352                ((eq scan-type 'rescan)
2353                 (wl-summary-rescan))
2354                ((or (eq scan-type 'force-update)
2355                     (eq scan-type 'update))
2356                 (setq mes (wl-summary-sync-force-update
2357                            'unset-cursor 'no-check)))))
2358           (if interactive
2359               (switch-to-buffer buf)
2360             (set-buffer buf))
2361           ;; stick always-sticky-folder
2362           (when (wl-summary-always-sticky-folder-p folder)
2363             (or (wl-summary-sticky-p) (wl-summary-stick t)))
2364           (run-hooks 'wl-summary-prepared-pre-hook)
2365           (set-buffer-modified-p nil)
2366           (goto-char (point-min))
2367           (if (wl-summary-cursor-down t)
2368               (let ((unreadp (wl-summary-next-message
2369                               (wl-summary-message-number)
2370                               'down t)))
2371                 (cond ((and wl-auto-select-first
2372                             (wl-summary-auto-select-msg-p unreadp))
2373                        ;; wl-auto-select-first is non-nil and
2374                        ;; unreadp is non-nil but not important
2375                        (setq retval 'disp-msg))
2376                       ((and wl-auto-prefetch-first
2377                             (wl-summary-auto-select-msg-p unreadp))
2378                        ;; wl-auto-select-first is non-nil and
2379                        ;; unreadp is non-nil but not important
2380                        (setq retval 'prefetch-msg))
2381                       ((not (wl-summary-auto-select-msg-p unreadp))
2382                        ;; unreadp is nil or important
2383                        (setq retval 'more-next))))
2384             (goto-char (point-max))
2385             (if (elmo-folder-plugged-p folder)
2386                 (forward-line -1)
2387               (wl-summary-prev))
2388             (setq retval 'more-next))
2389           (if (and wl-summary-highlight
2390                    (not wl-summary-lazy-highlight)
2391                    (not reuse-buf))
2392               (if (and wl-summary-highlight-partial-threshold
2393                        (> (count-lines (point-min) (point-max))
2394                           wl-summary-highlight-partial-threshold))
2395                   (save-excursion
2396                     (forward-line (-
2397                                    0
2398                                    (or
2399                                     wl-summary-partial-highlight-above-lines
2400                                     wl-summary-highlight-partial-threshold)))
2401                     (wl-highlight-summary (point) (point-max)))
2402                 (wl-highlight-summary (point-min) (point-max))))
2403           (if (eq retval 'disp-msg)
2404               (wl-summary-redisplay))
2405           (if (eq retval 'prefetch-msg)
2406               (wl-message-buffer-prefetch
2407                folder
2408                (wl-summary-message-number)
2409                wl-message-buffer-prefetch-depth
2410                (current-buffer)
2411                wl-summary-buffer-mime-charset))
2412           (if mes (message "%s" mes))
2413           (if (and interactive wl-summary-recenter)
2414               (recenter (/ (- (window-height) 2) 2))))))
2415     ;; set current entity-id
2416     (when (and folder
2417                (setq entity
2418                      (wl-folder-search-entity-by-name
2419                       (elmo-folder-name-internal folder)
2420                       wl-folder-entity
2421                       'folder)))
2422       ;; entity-id is unknown.
2423       (wl-folder-set-current-entity-id
2424        (wl-folder-get-entity-id entity)))
2425     (when (and wl-summary-buffer-window-scroll-functions
2426                wl-on-xemacs)
2427       (sit-for 0))
2428     (unwind-protect
2429         (run-hooks 'wl-summary-prepared-hook)
2430       (set-buffer-modified-p nil))
2431     retval))
2432
2433 (defun wl-summary-goto-previous-message-beginning ()
2434   (end-of-line)
2435   (re-search-backward "\r\\(-?[0-9]+\\)" nil t)
2436   (beginning-of-line))
2437
2438 (defun wl-summary-goto-top-of-current-thread ()
2439   (wl-summary-jump-to-msg
2440    (wl-thread-entity-get-number
2441     (wl-thread-entity-get-top-entity (wl-thread-get-entity
2442                                       (wl-summary-message-number))))))
2443
2444 (defun wl-summary-goto-bottom-of-sub-thread (&optional depth)
2445   (interactive)
2446   (let ((depth (or depth
2447                    (wl-thread-get-depth-of-current-line))))
2448     (forward-line 1)
2449     (while (and (not (eobp))
2450                 (>= (wl-thread-get-depth-of-current-line)
2451                     depth))
2452       (forward-line 1))
2453     (beginning-of-line)))
2454
2455 (defun wl-summary-insert-line (line)
2456   "Insert LINE in the Summary."
2457   (if wl-use-highlight-mouse-line
2458       ;; remove 'mouse-face of current line.
2459       (put-text-property
2460        (save-excursion (beginning-of-line)(point))
2461        (save-excursion (end-of-line)(point))
2462        'mouse-face nil))
2463   (insert line "\n")
2464   (if wl-use-highlight-mouse-line
2465       ;; remove 'mouse-face of current line.
2466       (put-text-property
2467        (save-excursion (beginning-of-line)(point))
2468        (save-excursion (end-of-line)(point))
2469        'mouse-face nil))
2470   (ignore-errors
2471     (run-hooks 'wl-summary-line-inserted-hook)))
2472
2473 (defun wl-summary-insert-sequential (entity folder &rest args)
2474   (when entity
2475     (let ((inhibit-read-only t)
2476           (number (elmo-message-entity-number entity))
2477           buffer-read-only)
2478       (goto-char (point-max))
2479       (wl-summary-insert-line
2480        (wl-summary-create-line entity nil nil
2481                                (elmo-message-flags
2482                                 wl-summary-buffer-elmo-folder
2483                                 number)
2484                                (elmo-message-cached-p
2485                                 wl-summary-buffer-elmo-folder
2486                                 number)))
2487       (setq wl-summary-buffer-number-list
2488             (wl-append wl-summary-buffer-number-list
2489                        (list (elmo-message-entity-number entity))))
2490       nil)))
2491
2492 (defun wl-summary-default-subject-filter (subject)
2493   (setq subject (elmo-replace-in-string subject "[ \t]*\\(re\\|was\\)[:>]" ""))
2494   (setq subject (elmo-replace-in-string subject "[ \t]" ""))
2495   (elmo-replace-in-string subject "^\\[.*\\]" ""))
2496
2497 (defun wl-summary-subject-equal (subject1 subject2)
2498   (string= (funcall wl-summary-subject-filter-function subject1)
2499            (funcall wl-summary-subject-filter-function subject2)))
2500
2501 (defmacro wl-summary-put-alike (alike)
2502   (` (elmo-set-hash-val (format "#%d" (wl-count-lines))
2503                         (, alike)
2504                         wl-summary-alike-hashtb)))
2505
2506 (defmacro wl-summary-get-alike ()
2507   (` (elmo-get-hash-val (format "#%d" (wl-count-lines))
2508                         wl-summary-alike-hashtb)))
2509
2510 (defun wl-summary-insert-headers (folder func mime-decode)
2511   (let ((numbers (elmo-folder-list-messages folder 'visible t))
2512         ov this last alike)
2513     (buffer-disable-undo (current-buffer))
2514     (make-local-variable 'wl-summary-alike-hashtb)
2515     (setq wl-summary-alike-hashtb (elmo-make-hash (* (length numbers) 2)))
2516     (when mime-decode
2517       (elmo-set-buffer-multibyte default-enable-multibyte-characters))
2518     (while (setq ov (elmo-message-entity folder (pop numbers)))
2519       (setq this (funcall func ov))
2520       (and this (setq this (std11-unfold-string this)))
2521       (if (equal last this)
2522           (setq alike (cons ov alike))
2523         (when last
2524           (wl-summary-put-alike alike)
2525           (insert last ?\n))
2526         (setq alike (list ov)
2527               last this)))
2528     (when last
2529       (wl-summary-put-alike alike)
2530       (insert last ?\n))
2531     (when mime-decode
2532       (decode-mime-charset-region (point-min) (point-max)
2533                                   elmo-mime-charset)
2534       (when (eq mime-decode 'mime)
2535         (eword-decode-region (point-min) (point-max))))
2536     (run-hooks 'wl-summary-insert-headers-hook)))
2537
2538 (defun wl-summary-search-by-subject (entity folder)
2539   (let ((summary-buf (current-buffer))
2540         (buf (get-buffer-create wl-summary-search-buf-name))
2541         (folder-name (wl-summary-buffer-folder-name))
2542         match founds result)
2543     (with-current-buffer buf
2544       (let ((case-fold-search t))
2545         (when (or (not (string= wl-summary-search-buf-folder-name folder-name))
2546                   (zerop (buffer-size)))
2547           (setq wl-summary-search-buf-folder-name folder-name)
2548           (message "Creating subject cache...")
2549           (wl-summary-insert-headers
2550            folder
2551            (function
2552             (lambda (x)
2553               (funcall wl-summary-subject-filter-function
2554                        (elmo-message-entity-field x 'subject))))
2555            t)
2556           (message "Creating subject cache...done"))
2557         (setq match (funcall wl-summary-subject-filter-function
2558                              (elmo-message-entity-field entity 'subject
2559                                                         'decode)))
2560         (if (string= match "")
2561             (setq match "\n"))
2562         (goto-char (point-max))
2563         (while (and (null result)
2564                     (not (= (point) (point-min)))
2565                     (search-backward match nil t))
2566           ;; check exactly match
2567           (when (and (bolp) (= (point-at-eol)(match-end 0)))
2568             (setq founds (wl-summary-get-alike))
2569             (with-current-buffer summary-buf
2570               (while founds
2571                 (when (and
2572                        ;; the first element of found-entity list exists on
2573                        ;; thread tree.
2574                        (wl-thread-get-entity
2575                         (elmo-message-entity-number (car founds)))
2576                        ;; message id is not same as myself.
2577                        (not (string=
2578                              (elmo-message-entity-field entity 'message-id)
2579                              (elmo-message-entity-field (car founds)
2580                                                         'message-id)))
2581                        ;; not a descendant.
2582                        (not (wl-thread-descendant-p
2583                              (elmo-message-entity-number entity)
2584                              (elmo-message-entity-number (car founds)))))
2585                   (setq result (car founds)
2586                         founds nil))
2587                 (setq founds (cdr founds))))))
2588         result))))
2589
2590 (defun wl-summary-insert-thread (entity folder update
2591                                         &optional force-insert)
2592   (let ((depth 0)
2593         this-id parent-entity parent-number
2594         number cur-entity linked retval delayed-entity
2595         update-list entity-stack thread-entity)
2596     (while entity
2597       (setq this-id (elmo-message-entity-field entity 'message-id)
2598             number (elmo-message-entity-number entity))
2599       (if (and wl-thread-saved-entity-hashtb-internal
2600                (setq thread-entity
2601                      (elmo-get-hash-val
2602                       (format "#%d" (elmo-message-entity-number entity))
2603                       wl-thread-saved-entity-hashtb-internal)))
2604           (setq parent-entity
2605                 (elmo-message-entity
2606                  folder
2607                  (wl-thread-entity-get-parent thread-entity))
2608                 linked (wl-thread-entity-get-linked thread-entity))
2609         (setq parent-entity (elmo-message-entity-parent folder entity)
2610               linked nil))
2611       (setq parent-number (and parent-entity
2612                                (elmo-message-entity-number parent-entity)))
2613       ;; If thread loop detected, set parent as nil.
2614       (let ((cur entity)
2615             anumber relatives)
2616         (while cur
2617           (when (setq anumber
2618                       (elmo-message-entity-number
2619                        (setq cur (elmo-message-entity-parent folder cur))))
2620             (if (memq anumber relatives)
2621                 (setq parent-number nil
2622                       cur nil))
2623             (setq relatives (cons anumber relatives)))))
2624       (if (and parent-number
2625                (not (wl-thread-get-entity parent-number))
2626                (not force-insert))
2627           ;; parent exists in overview, but not in wl-thread-entities
2628           (progn
2629             (wl-append wl-summary-delayed-update
2630                        (list (cons parent-number entity)))
2631             (setq entity nil)) ;; exit loop
2632         ;; Search parent by subject.
2633         (when (and (null parent-number)
2634                    wl-summary-search-parent-by-subject-regexp
2635                    (string-match
2636                     wl-summary-search-parent-by-subject-regexp
2637                     (elmo-message-entity-field entity 'subject)))
2638           (let ((found (wl-summary-search-by-subject entity folder)))
2639             (when (and found
2640                        (not (member found wl-summary-delayed-update)))
2641               (setq parent-entity found)
2642               (setq parent-number
2643                     (elmo-message-entity-number parent-entity))
2644               (setq linked t))))
2645         ;; If subject is change, divide thread.
2646         (if (and parent-number
2647                  wl-summary-divide-thread-when-subject-changed
2648                  (not (wl-summary-subject-equal
2649                        (or (elmo-message-entity-field entity
2650                                                       'subject t) "")
2651                        (or (elmo-message-entity-field parent-entity
2652                                                       'subject t) ""))))
2653             (setq parent-number nil))
2654         (setq retval
2655               (wl-thread-insert-message entity
2656                                         number parent-number update linked))
2657         (and retval
2658              (wl-append update-list (list retval)))
2659         (setq entity nil) ; exit loop
2660         (while (setq delayed-entity (assq number wl-summary-delayed-update))
2661           (setq wl-summary-delayed-update
2662                 (delq delayed-entity wl-summary-delayed-update))
2663           ;; update delayed message
2664           (wl-append entity-stack (list (cdr delayed-entity)))))
2665       (if (and (not entity)
2666                entity-stack)
2667           (setq entity (pop entity-stack))))
2668     update-list))
2669
2670 (defun wl-summary-update-thread (entity
2671                                  thr-entity
2672                                  parent-entity)
2673   (let* ((this-id (elmo-message-entity-field entity 'message-id))
2674          (overview-entity entity)
2675          (parent-id (elmo-message-entity-field parent-entity 'message-id))
2676          (number (elmo-message-entity-number entity))
2677          (parent-number (elmo-message-entity-number parent-entity))
2678          insert-line)
2679     (cond
2680      ((or (not parent-id)
2681           (string= this-id parent-id))
2682       (goto-char (point-max))
2683       (beginning-of-line)
2684       (setq insert-line t))
2685      ;; parent already exists in buffer.
2686      ((wl-summary-jump-to-msg parent-number)
2687       (wl-thread-goto-bottom-of-sub-thread)
2688       (setq insert-line t)))
2689     (when insert-line
2690       (let (buffer-read-only)
2691         (wl-summary-insert-line
2692          (wl-summary-create-line
2693           entity
2694           parent-entity
2695           nil
2696           (elmo-message-flags wl-summary-buffer-elmo-folder number)
2697           (elmo-message-cached-p wl-summary-buffer-elmo-folder number)
2698           (wl-thread-maybe-get-children-num number)
2699           (wl-thread-make-indent-string thr-entity)
2700           (wl-thread-entity-get-linked thr-entity)))))))
2701
2702 (defun wl-summary-target-mark-msgs (msgs)
2703   "Return the number of marked messages."
2704   (let ((i 0))
2705     (dolist (number msgs)
2706       (when (wl-summary-target-mark number)
2707         (setq i (1+ i))))
2708     i))
2709
2710 (defun wl-summary-pick (&optional from-list delete-marks)
2711   (interactive)
2712   (save-excursion
2713     (let* ((condition (car (elmo-parse-search-condition
2714                             (elmo-read-search-condition
2715                              wl-summary-pick-field-default))))
2716            (result (elmo-folder-search wl-summary-buffer-elmo-folder
2717                                        condition
2718                                        from-list))
2719            num)
2720       (if delete-marks
2721           (let ((mlist wl-summary-buffer-target-mark-list))
2722             (while mlist
2723               (when (wl-summary-jump-to-msg (car mlist))
2724                 (wl-summary-unmark))
2725               (setq mlist (cdr mlist)))
2726             (setq wl-summary-buffer-target-mark-list nil)))
2727       (if (and result
2728                (setq num (wl-summary-target-mark-msgs result))
2729                (> num 0))
2730           (if (= num (length result))
2731               (message "%d message(s) are picked." num)
2732             (message "%d(%d) message(s) are picked." num
2733                      (- (length result) num)))
2734         (message "No message was picked.")))))
2735
2736 (defun wl-summary-unvirtual ()
2737   "Exit from current virtual folder."
2738   (interactive)
2739   (if (eq 'filter
2740           (elmo-folder-type-internal wl-summary-buffer-elmo-folder))
2741       (wl-summary-goto-folder-subr
2742        (elmo-folder-name-internal
2743         (elmo-filter-folder-target-internal
2744          wl-summary-buffer-elmo-folder))
2745        'update nil nil t)
2746     (error "This folder is not filtered")))
2747
2748 (defun wl-summary-virtual (&optional arg)
2749   "Goto virtual folder.
2750 If ARG, exit virtual folder."
2751   (interactive "P")
2752   (if arg
2753       (wl-summary-unvirtual)
2754     (wl-summary-goto-folder-subr (concat "/"
2755                                          (elmo-read-search-condition
2756                                           wl-summary-pick-field-default)
2757                                          "/"
2758                                          (wl-summary-buffer-folder-name))
2759                                  'update nil nil t)
2760     (run-hooks 'wl-summary-virtual-hook)))
2761
2762 (defun wl-summary-delete-all-temp-marks (&optional no-msg force)
2763   "Erase all temp marks from buffer."
2764   (interactive)
2765   (when (or wl-summary-buffer-target-mark-list
2766             wl-summary-buffer-temp-mark-list
2767             wl-summary-scored)
2768     (save-excursion
2769       (goto-char (point-min))
2770       (unless no-msg
2771         (message "Unmarking..."))
2772       (while (not (eobp))
2773         (wl-summary-unset-mark nil nil force)
2774         (forward-line 1))
2775       (unless no-msg
2776         (message "Unmarking...done"))
2777       (setq wl-summary-buffer-target-mark-list nil)
2778       (setq wl-summary-buffer-temp-mark-list nil))))
2779
2780 (defsubst wl-summary-temp-mark (&optional number)
2781   "Return temp-mark string of current line."
2782   (let ((number (or number (wl-summary-message-number)))
2783         info)
2784     (or (and (wl-summary-have-target-mark-p number)
2785              "*")
2786         (and (setq info (wl-summary-registered-temp-mark number))
2787              (nth 1 info))
2788         (wl-summary-get-score-mark number)
2789         " ")))
2790
2791 (defsubst wl-summary-persistent-mark-string (folder flags cached)
2792   "Return the persistent mark string.
2793 The mark is decided according to the FOLDER, FLAGS and CACHED."
2794   (let ((priorities wl-summary-flag-priority-list)
2795         mark)
2796     (while (and (null mark) priorities)
2797       (when (memq (car priorities) flags)
2798         (setq mark
2799               (case (car priorities)
2800                 (new
2801                  (if cached
2802                      wl-summary-new-cached-mark
2803                    wl-summary-new-uncached-mark))
2804                 (important
2805                  wl-summary-important-mark)
2806                 (answered
2807                  (if cached
2808                      wl-summary-answered-cached-mark
2809                    wl-summary-answered-uncached-mark))
2810                 (unread
2811                  (if cached
2812                      wl-summary-unread-cached-mark
2813                    wl-summary-unread-uncached-mark)))))
2814       (setq priorities (cdr priorities)))
2815     (or mark
2816         (if (or cached (elmo-folder-local-p folder))
2817             nil
2818           wl-summary-read-uncached-mark))))
2819
2820 (defsubst wl-summary-message-mark (folder number &optional flags)
2821   "Return mark of the message."
2822   (ignore-errors
2823     (wl-summary-persistent-mark-string
2824      folder
2825      (or flags (setq flags (elmo-message-flags folder number)))
2826      (memq 'cached flags) ; XXX for speed-up.
2827      )))
2828
2829 (defsubst wl-summary-persistent-mark (&optional number flags)
2830   "Return persistent-mark string of current line."
2831   (or (wl-summary-message-mark wl-summary-buffer-elmo-folder
2832                                (or number (wl-summary-message-number))
2833                                flags)
2834       " "))
2835
2836 (defun wl-summary-put-temp-mark (mark)
2837   "Put temp MARK on current line."
2838   (when wl-summary-buffer-temp-mark-column
2839     (save-excursion
2840       (beginning-of-line)
2841       (let ((inhibit-read-only t)
2842             (buffer-read-only nil))
2843         (move-to-column wl-summary-buffer-temp-mark-column)
2844         (delete-backward-char 1)
2845         (insert mark)))))
2846
2847 (defun wl-summary-next-buffer ()
2848   "Switch to next summary buffer."
2849   (interactive)
2850   (let ((buffers (sort (wl-collect-summary)
2851                        (lambda (buffer1 buffer2)
2852                          (string-lessp (buffer-name buffer1)
2853                                        (buffer-name buffer2))))))
2854     (switch-to-buffer
2855      (or (cadr (memq (current-buffer) buffers))
2856          (car buffers)))))
2857
2858 (defun wl-summary-previous-buffer ()
2859   "Switch to previous summary buffer."
2860   (interactive)
2861   (let ((buffers (sort (wl-collect-summary)
2862                        (lambda (buffer1 buffer2)
2863                          (not (string-lessp (buffer-name buffer1)
2864                                             (buffer-name buffer2)))))))
2865     (switch-to-buffer
2866      (or (cadr (memq (current-buffer) buffers))
2867          (car buffers)))))
2868
2869 (defun wl-summary-target-mark-mark-as-read ()
2870   (interactive)
2871   (save-excursion
2872     (goto-char (point-min))
2873     (let ((inhibit-read-only t)
2874           (buffer-read-only nil)
2875           wl-summary-buffer-disp-msg)
2876       (wl-summary-mark-as-read wl-summary-buffer-target-mark-list)
2877       (dolist (number wl-summary-buffer-target-mark-list)
2878         (wl-summary-unset-mark number)))))
2879
2880 (defun wl-summary-target-mark-mark-as-unread ()
2881   (interactive)
2882   (save-excursion
2883     (goto-char (point-min))
2884     (let ((inhibit-read-only t)
2885           (buffer-read-only nil)
2886           wl-summary-buffer-disp-msg)
2887       (wl-summary-mark-as-unread wl-summary-buffer-target-mark-list)
2888       (dolist (number wl-summary-buffer-target-mark-list)
2889         (wl-summary-unset-mark number)))))
2890
2891 (defun wl-summary-target-mark-mark-as-important ()
2892   (interactive)
2893   (save-excursion
2894     (goto-char (point-min))
2895     (let ((inhibit-read-only t)
2896           (buffer-read-only nil)
2897           wl-summary-buffer-disp-msg)
2898       (dolist (number wl-summary-buffer-target-mark-list)
2899         (wl-summary-unset-mark number)
2900         (wl-summary-mark-as-important number))
2901       (wl-summary-count-unread)
2902       (wl-summary-update-modeline))))
2903
2904 (defun wl-summary-target-mark-save ()
2905   (interactive)
2906   (let ((wl-save-dir
2907          (wl-read-directory-name "Save to directory: "
2908                                  wl-temporary-file-directory))
2909         number)
2910     (if (null (file-exists-p wl-save-dir))
2911         (make-directory wl-save-dir))
2912     (while (setq number (car wl-summary-buffer-target-mark-list))
2913       (wl-thread-jump-to-msg number)
2914       (wl-summary-save t wl-save-dir)
2915       (wl-summary-unmark))))
2916
2917 (defun wl-summary-target-mark-pick ()
2918   (interactive)
2919   (wl-summary-pick wl-summary-buffer-target-mark-list 'delete))
2920
2921 (defun wl-summary-update-persistent-mark (&optional number flags)
2922   "Synch up persistent mark of current line with msgdb's.
2923 Return non-nil if the mark is updated"
2924   (prog1
2925       (when wl-summary-buffer-persistent-mark-column
2926         (save-excursion
2927           (move-to-column wl-summary-buffer-persistent-mark-column)
2928           (let ((inhibit-read-only t)
2929                 (buffer-read-only nil)
2930                 (mark (buffer-substring (- (point) 1) (point)))
2931                 (new-mark (wl-summary-persistent-mark number flags)))
2932             (unless (string= new-mark mark)
2933               (delete-backward-char 1)
2934               (insert new-mark)
2935               (wl-summary-set-message-modified)
2936               t))))
2937     (when wl-summary-highlight
2938       (wl-highlight-summary-current-line))
2939     (set-buffer-modified-p nil)))
2940
2941 (defsubst wl-summary-mark-as-read-internal (inverse
2942                                             number-or-numbers
2943                                             no-folder-mark
2944                                             no-modeline-update)
2945   (save-excursion
2946     (let ((folder wl-summary-buffer-elmo-folder)
2947           unread-message number
2948           number-list visible)
2949       (setq number-list (cond ((numberp number-or-numbers)
2950                                (setq unread-message
2951                                      (elmo-message-flagged-p
2952                                       folder
2953                                       number-or-numbers
2954                                       'unread))
2955                                (list number-or-numbers))
2956                               ((and (not (null number-or-numbers))
2957                                     (listp number-or-numbers))
2958                                number-or-numbers)
2959                               ((setq number (wl-summary-message-number))
2960                                ;; interactive
2961                                (setq unread-message
2962                                      (elmo-message-flagged-p
2963                                       folder
2964                                       number
2965                                       'unread))
2966                                (list number))))
2967       (if (null number-list)
2968           (message "No message.")
2969         (if inverse
2970             (elmo-folder-unset-flag folder number-list 'read no-folder-mark)
2971           (elmo-folder-set-flag folder number-list 'read no-folder-mark))
2972         (dolist (number number-list)
2973           (setq visible (wl-summary-jump-to-msg number))
2974           (unless inverse
2975             (when unread-message
2976               (run-hooks 'wl-summary-unread-message-hook)))
2977           ;; set mark on buffer
2978           (when visible
2979             (wl-summary-update-persistent-mark)))
2980         (unless no-modeline-update
2981           ;; Update unread numbers.
2982           (wl-summary-count-unread)
2983           (wl-summary-update-modeline)
2984           (wl-folder-update-unread
2985            (wl-summary-buffer-folder-name)
2986            (+ wl-summary-buffer-unread-count
2987               wl-summary-buffer-new-count)))))))
2988
2989 (defun wl-summary-mark-as-read (&optional number-or-numbers
2990                                           no-folder-mark
2991                                           no-modeline-update)
2992   (interactive)
2993   (wl-summary-mark-as-read-internal nil
2994                                     number-or-numbers
2995                                     no-folder-mark
2996                                     no-modeline-update))
2997
2998 (defun wl-summary-mark-as-unread (&optional number-or-numbers
2999                                             no-folder-mark
3000                                             no-modeline-update)
3001   (interactive)
3002   (wl-summary-mark-as-read-internal 'inverse
3003                                     number-or-numbers
3004                                     no-folder-mark
3005                                     no-modeline-update))
3006
3007 (defsubst wl-summary-mark-as-answered-internal (inverse
3008                                                 &optional
3009                                                 number-or-numbers
3010                                                 no-modeline-update)
3011   (save-excursion
3012     (let ((folder wl-summary-buffer-elmo-folder)
3013           number number-list visible)
3014       (setq number-list (cond ((numberp number-or-numbers)
3015                                (list number-or-numbers))
3016                               ((and (not (null number-or-numbers))
3017                                     (listp number-or-numbers))
3018                                number-or-numbers)
3019                               ((setq number (wl-summary-message-number))
3020                                ;; interactive
3021                                (list number))))
3022       (if (null number-list)
3023           (message "No message.")
3024         (if inverse
3025             (elmo-folder-unset-flag folder number-list 'answered)
3026           (elmo-folder-set-flag folder number-list 'answered))
3027         (dolist (number number-list)
3028           (setq visible (wl-summary-jump-to-msg number))
3029           ;; set mark on buffer
3030           (when visible
3031             (wl-summary-update-persistent-mark)))
3032         (unless no-modeline-update
3033           ;; Update unread numbers.
3034           ;; should elmo-flag-mark-as-read return unread numbers?
3035           (wl-summary-count-unread)
3036           (wl-summary-update-modeline)
3037           (wl-folder-update-unread
3038            (wl-summary-buffer-folder-name)
3039            (+ wl-summary-buffer-unread-count
3040               wl-summary-buffer-new-count)))))))
3041
3042 (defun wl-summary-mark-as-answered (&optional number-or-numbers
3043                                               no-modeline-update)
3044   (interactive)
3045   (wl-summary-mark-as-answered-internal
3046    (and (interactive-p)
3047         (elmo-message-flagged-p wl-summary-buffer-elmo-folder
3048                                 (wl-summary-message-number)
3049                                 'answered))
3050    number-or-numbers
3051    no-modeline-update))
3052
3053 (defun wl-summary-mark-as-unanswered (&optional number-or-numbers
3054                                                 no-modeline-update)
3055   (wl-summary-mark-as-answered-internal 'inverse
3056                                         number-or-numbers
3057                                         no-modeline-update))
3058
3059 (defsubst wl-summary-mark-as-important-internal (inverse
3060                                                  &optional
3061                                                  number-or-numbers
3062                                                  no-server-update)
3063   (if (eq (elmo-folder-type-internal wl-summary-buffer-elmo-folder)
3064           'flag)
3065       (error "Cannot process mark in this folder"))
3066   (save-excursion
3067     (let ((folder wl-summary-buffer-elmo-folder)
3068           number number-list visible)
3069       (setq number-list (cond ((numberp number-or-numbers)
3070                                (list number-or-numbers))
3071                               ((and (not (null number-or-numbers))
3072                                     (listp number-or-numbers))
3073                                number-or-numbers)
3074                               ((setq number (wl-summary-message-number))
3075                                ;; interactive
3076                                (list number))))
3077       (if (null number-list)
3078           (message "No message.")
3079         (if inverse
3080             (elmo-folder-unset-flag folder number-list
3081                                     'important no-server-update)
3082           (elmo-folder-set-flag folder number-list
3083                                 'important no-server-update))
3084         (dolist (number number-list)
3085           (setq visible (wl-summary-jump-to-msg number))
3086           ;; set mark on buffer
3087           (when visible
3088             (wl-summary-update-persistent-mark)))))))
3089
3090 (defun wl-summary-mark-as-important (&optional number-or-numbers
3091                                                no-server-update)
3092   (interactive)
3093   (wl-summary-mark-as-important-internal
3094    (and (interactive-p)
3095         (elmo-message-flagged-p wl-summary-buffer-elmo-folder
3096                                 (wl-summary-message-number)
3097                                 'important))
3098    number-or-numbers
3099    no-server-update))
3100
3101 (defun wl-summary-mark-as-unimportant (&optional number-or-numbers
3102                                                  no-server-update)
3103   (interactive)
3104   (wl-summary-mark-as-important-internal 'inverse
3105                                          number-or-numbers
3106                                          no-server-update))
3107
3108 ;;; Summary line.
3109 (defvar wl-summary-line-formatter nil)
3110
3111 (defun wl-summary-view-old-p ()
3112   "Return non-nil when summary view cache has old format."
3113   (save-excursion
3114     (goto-char (point-min))
3115     (and wl-summary-buffer-number-list
3116          (not (re-search-forward "\r-?[0-9]+" (point-at-eol) t)))))
3117
3118 (defun wl-summary-line-format-changed-p ()
3119   "Return non-nil when summary line format is changed."
3120   (not (string=
3121         wl-summary-buffer-line-format
3122         (or (elmo-object-load (expand-file-name
3123                                wl-summary-line-format-file
3124                                (elmo-folder-msgdb-path
3125                                 wl-summary-buffer-elmo-folder))
3126                               wl-summary-buffer-mime-charset)
3127             wl-summary-buffer-line-format))))
3128
3129 (defun wl-summary-line-format-save ()
3130   "Save current summary line format."
3131   (elmo-object-save
3132    (expand-file-name wl-summary-line-format-file
3133                      (elmo-folder-msgdb-path
3134                       wl-summary-buffer-elmo-folder))
3135    wl-summary-buffer-line-format
3136    wl-summary-buffer-mime-charset))
3137
3138 (defun wl-summary-line-number ()
3139   (wl-set-string-width
3140    (- wl-summary-buffer-number-column)
3141    (number-to-string
3142     (elmo-message-entity-number wl-message-entity))))
3143
3144 (defun wl-summary-line-year ()
3145   (aref wl-datevec 0))
3146 (defun wl-summary-line-month ()
3147   (format "%02d" (aref wl-datevec 1)))
3148 (defun wl-summary-line-day ()
3149   (format "%02d" (aref wl-datevec 2)))
3150 (defun wl-summary-line-day-of-week ()
3151   (condition-case nil
3152       (elmo-date-get-week (aref wl-datevec 0)
3153                           (aref wl-datevec 1)
3154                           (aref wl-datevec 2))
3155     (error "??")))
3156 (defun wl-summary-line-hour ()
3157   (format "%02d" (aref wl-datevec 3)))
3158 (defun wl-summary-line-minute ()
3159   (format "%02d" (aref wl-datevec 4)))
3160
3161 (defun wl-summary-line-size ()
3162   (let ((size (elmo-message-entity-field wl-message-entity 'size)))
3163     (if size
3164         (cond
3165          ((<= 1 (/ size 1048576))
3166           (format "%.0fM" (/ size 1048576.0)))
3167          ((<= 1 (/ size 1024))
3168           (format "%.0fK" (/ size 1024.0)))
3169          (t (format "%dB" size)))
3170       "")))
3171
3172 (defun wl-summary-line-subject ()
3173   (let (no-parent subject parent-raw-subject parent-subject)
3174     (if (string= wl-thr-indent-string "")
3175         (setq no-parent t)) ; no parent
3176     (setq subject
3177           (elmo-delete-char ?\n
3178                             (or (elmo-message-entity-field
3179                                  wl-message-entity
3180                                  'subject t)
3181                                 wl-summary-no-subject-message)))
3182     (setq parent-raw-subject
3183           (elmo-message-entity-field wl-parent-message-entity
3184                                      'subject t))
3185     (setq parent-subject
3186           (if parent-raw-subject
3187               (elmo-delete-char ?\n parent-raw-subject)))
3188     (if (or no-parent
3189             (null parent-subject)
3190             (not (wl-summary-subject-equal
3191                   subject parent-subject)))
3192         (funcall wl-summary-subject-function subject)
3193       "")))
3194
3195 (defun wl-summary-line-from ()
3196   (elmo-delete-char ?\n
3197                     (funcall wl-summary-from-function
3198                              (elmo-message-entity-field
3199                               wl-message-entity
3200                               'from t))))
3201
3202 (defun wl-summary-line-list-info ()
3203   (let ((list-info (wl-summary-get-list-info wl-message-entity)))
3204     (if (car list-info)
3205         (format (if (cdr list-info) "(%s %05.0f)" "(%s)")
3206                 (car list-info) (cdr list-info))
3207       "")))
3208
3209 (defun wl-summary-line-list-count ()
3210   (let ((ml-count (cdr (wl-summary-get-list-info wl-message-entity))))
3211     (if ml-count
3212         (format "%.0f" ml-count)
3213       "")))
3214
3215 (defun wl-summary-line-attached ()
3216   (let ((content-type (elmo-message-entity-field
3217                        wl-message-entity 'content-type))
3218         (case-fold-search t))
3219     (if (and content-type
3220              (string-match "multipart/mixed" content-type))
3221         "@"
3222       "")))
3223
3224 ;;; For future use.
3225 ;;(defun wl-summary-line-cached ()
3226 ;;  (if (elmo-message-cached-p wl-summary-buffer-elmo-folder
3227 ;;                           (elmo-message-entity-number wl-message-entity))
3228 ;;      " "
3229 ;;    "u"))
3230
3231 (defun wl-summary-create-line (wl-message-entity
3232                                wl-parent-message-entity
3233                                wl-temp-mark
3234                                wl-flags
3235                                wl-cached
3236                                &optional
3237                                wl-thr-children-number
3238                                wl-thr-indent-string
3239                                wl-thr-linked)
3240   "Create a summary line."
3241   (let ((wl-mime-charset wl-summary-buffer-mime-charset)
3242         (wl-persistent-mark (wl-summary-persistent-mark-string
3243                              wl-summary-buffer-elmo-folder
3244                              wl-flags
3245                              wl-cached))
3246         (elmo-mime-charset wl-summary-buffer-mime-charset)
3247         (elmo-lang wl-summary-buffer-weekday-name-lang)
3248         (wl-datevec (or (ignore-errors (timezone-fix-time
3249                                         (elmo-message-entity-field
3250                                          wl-message-entity
3251                                          'date)
3252                                         nil
3253                                         wl-summary-fix-timezone))
3254                         (make-vector 5 0)))
3255         (entity wl-message-entity) ; backward compatibility.
3256         line mark)
3257     (if (and wl-thr-indent-string
3258              wl-summary-indent-length-limit
3259              (< wl-summary-indent-length-limit
3260                 (string-width wl-thr-indent-string)))
3261         (setq wl-thr-indent-string (wl-set-string-width
3262                                     wl-summary-indent-length-limit
3263                                     wl-thr-indent-string)))
3264     (setq line (funcall wl-summary-buffer-line-formatter))
3265     (if wl-summary-width (setq line
3266                                (wl-set-string-width
3267                                 (- wl-summary-width 1) line nil
3268                                 'ignore-invalid)))
3269     (setq line (concat line
3270                        "\r"
3271                        (number-to-string
3272                         (elmo-message-entity-number
3273                          wl-message-entity))))
3274     (if wl-summary-highlight
3275         (wl-highlight-summary-line-string
3276          (elmo-message-entity-number wl-message-entity)
3277          line
3278          wl-flags
3279          wl-temp-mark
3280          wl-thr-indent-string))
3281     line))
3282
3283 (defsubst wl-summary-proc-wday (wday-str year month mday)
3284   (save-match-data
3285     (if (string-match "\\([A-Z][a-z][a-z]\\).*" wday-str)
3286         (wl-match-string 1 wday-str)
3287       (elmo-date-get-week year month mday))))
3288
3289 (defvar wl-summary-move-spec-alist
3290   '((new . ((t . nil)
3291             (p . new)
3292             (p . unread)
3293             (p . important)))
3294     (unread . ((t . nil)
3295                (p . unread)
3296                (p . important)))))
3297
3298 (defsubst wl-summary-next-message (num direction hereto)
3299   (if wl-summary-buffer-next-message-function
3300       (funcall wl-summary-buffer-next-message-function num direction hereto)
3301     (let ((cur-spec (cdr (assq wl-summary-move-order
3302                                wl-summary-move-spec-alist)))
3303           (nums (memq num (if (eq direction 'up)
3304                               (reverse wl-summary-buffer-number-list)
3305                             wl-summary-buffer-number-list)))
3306           flagged-list nums2)
3307       (unless hereto (setq nums (cdr nums)))
3308       (setq nums2 nums)
3309       (if cur-spec
3310           (catch 'done
3311             (while cur-spec
3312               (setq nums nums2)
3313               (cond ((eq (car (car cur-spec)) 'p)
3314                      (if (setq flagged-list
3315                                (elmo-folder-list-flagged
3316                                 wl-summary-buffer-elmo-folder
3317                                 (cdr (car cur-spec))))
3318                          (while nums
3319                            (if (and (memq (car nums) flagged-list)
3320                                     (elmo-message-accessible-p
3321                                      wl-summary-buffer-elmo-folder
3322                                      (car nums)))
3323                                (throw 'done (car nums)))
3324                            (setq nums (cdr nums)))))
3325                     ((eq (car (car cur-spec)) 't)
3326                      (if wl-summary-buffer-target-mark-list
3327                          (while nums
3328                            (if (memq (car nums)
3329                                      wl-summary-buffer-target-mark-list)
3330                                (throw 'done (car nums)))
3331                            (setq nums (cdr nums))))))
3332               (setq cur-spec (cdr cur-spec))))
3333         (car nums)))))
3334
3335 (defsubst wl-summary-cursor-move (direction hereto)
3336   (when (and (eq direction 'up)
3337              (eobp))
3338     (forward-line -1)
3339     (setq hereto t))
3340   (let (num)
3341     (when (setq num (wl-summary-next-message (wl-summary-message-number)
3342                                              direction hereto))
3343       (if (numberp num)
3344           (wl-thread-jump-to-msg num))
3345       t)))
3346 ;;
3347 ;; Goto unread or important
3348 ;; returns t if next message exists in this folder.
3349 (defun wl-summary-cursor-down (&optional hereto)
3350   (interactive "P")
3351   (wl-summary-cursor-move 'down hereto))
3352
3353 (defun wl-summary-cursor-up (&optional hereto)
3354   (interactive "P")
3355   (wl-summary-cursor-move 'up hereto))
3356
3357 (defun wl-summary-save-view-cache ()
3358   (save-excursion
3359     (let* ((dir (elmo-folder-msgdb-path wl-summary-buffer-elmo-folder))
3360            (cache (expand-file-name wl-summary-cache-file dir))
3361            (view (expand-file-name wl-summary-view-file dir))
3362            (save-view wl-summary-buffer-view)
3363            (mark-list (copy-sequence wl-summary-buffer-target-mark-list))
3364            (temp-list (copy-sequence wl-summary-buffer-temp-mark-list))
3365            (tmp-buffer (get-buffer-create " *wl-summary-save-view-cache*"))
3366            (temp-column wl-summary-buffer-temp-mark-column)
3367            (charset wl-summary-buffer-mime-charset))
3368       (when dir
3369         (if (file-directory-p dir)
3370             (); ok.
3371           (if (file-exists-p dir)
3372               (error "File %s already exists" dir)
3373             (elmo-make-directory dir)))
3374         (if (eq save-view 'thread)
3375             (wl-thread-save-entity dir))
3376         (when wl-summary-check-line-format
3377           (wl-summary-line-format-save))
3378         (unwind-protect
3379             (progn
3380               (when (file-writable-p cache)
3381                 (copy-to-buffer tmp-buffer (point-min) (point-max))
3382                 (with-current-buffer tmp-buffer
3383                   (widen)
3384                   (make-local-variable 'wl-summary-highlight)
3385                   (setq wl-summary-highlight nil
3386                         wl-summary-buffer-target-mark-list mark-list
3387                         wl-summary-buffer-temp-mark-list temp-list
3388                         wl-summary-buffer-temp-mark-column temp-column)
3389                   (wl-summary-delete-all-temp-marks 'no-msg 'force)
3390                   (encode-coding-region
3391                    (point-min) (point-max)
3392                    (or (and wl-on-mule
3393                             ;; one in mcs-ltn1(apel<10.4) cannot take 2 arg.
3394                             (mime-charset-to-coding-system charset 'LF))
3395                        ;; Mule 2 doesn't have `*ctext*unix'.
3396                        (mime-charset-to-coding-system charset)))
3397                   (write-region-as-binary (point-min)(point-max)
3398                                           cache nil 'no-msg)))
3399               (when (file-writable-p view) ; 'thread or 'sequence
3400                 (save-excursion
3401                   (set-buffer tmp-buffer)
3402                   (erase-buffer)
3403                   (prin1 save-view tmp-buffer)
3404                   (princ "\n" tmp-buffer)
3405                   (write-region (point-min) (point-max) view nil 'no-msg))))
3406           ;; kill tmp buffer.
3407           (kill-buffer tmp-buffer))))))
3408
3409 (defsubst wl-summary-get-sync-range (folder)
3410   (intern (or (and
3411                (elmo-folder-plugged-p folder)
3412                (wl-get-assoc-list-value
3413                 wl-folder-sync-range-alist
3414                 (elmo-folder-name-internal folder)
3415                 'function))
3416               wl-default-sync-range)))
3417
3418 ;; redefined for wl-summary-sync-update
3419 (defun wl-summary-input-range (folder)
3420   "returns update or all or rescan."
3421   ;; for the case when parts are expanded in the bottom of the folder
3422   (let ((input-range-list '("no-sync"
3423                             "first:"
3424                             "last:"
3425                             "cache-status"
3426                             "mark"
3427                             "rescan"
3428                             "rescan-noscore"
3429                             "rescan-thread"
3430                             "update"
3431                             "update-entirely"
3432                             "all"
3433                             "all-entirely"))
3434         (default (or (wl-get-assoc-list-value
3435                       wl-folder-sync-range-alist
3436                       folder
3437                       'function)
3438                      wl-default-sync-range))
3439         range)
3440     (setq range
3441           (completing-read (format "Range (%s): " default)
3442                            (mapcar
3443                             (function (lambda (x) (cons x x)))
3444                             input-range-list)))
3445     (if (string= range "")
3446         default
3447       range)))
3448
3449 (defun wl-summary-toggle-disp-folder (&optional arg)
3450   (interactive)
3451   (let ((cur-buf (current-buffer))
3452         (summary-win (get-buffer-window (current-buffer)))
3453         fld-buf fld-win)
3454     (cond
3455      ((eq arg 'on)
3456       (setq wl-summary-buffer-disp-folder t)
3457       ;; hide your folder window
3458       (if (setq fld-buf (get-buffer wl-folder-buffer-name))
3459           (if (setq fld-win (get-buffer-window fld-buf))
3460               (delete-window fld-win))))
3461      ((eq arg 'off)
3462       (setq wl-summary-buffer-disp-folder nil)
3463       ;; hide your wl-message window!
3464       (when (buffer-live-p wl-message-buffer)
3465         (wl-message-select-buffer wl-message-buffer)
3466         (delete-window))
3467       (select-window (get-buffer-window cur-buf))
3468       ;; display wl-folder window!!
3469       (if (setq fld-buf (get-buffer wl-folder-buffer-name))
3470           (if (setq fld-win (get-buffer-window fld-buf))
3471               ;; folder win is already displayed.
3472               (select-window fld-win)
3473             ;; folder win is not displayed.
3474             (switch-to-buffer fld-buf))
3475         ;; no folder buf
3476         (wl-folder))
3477       ;; temporarily delete summary-win.
3478       (if summary-win
3479           (delete-window summary-win))
3480       (split-window-horizontally wl-folder-window-width)
3481       (other-window 1)
3482       (switch-to-buffer cur-buf))
3483      (t
3484       (if (setq fld-buf (get-buffer wl-folder-buffer-name))
3485           (if (setq fld-win (get-buffer-window fld-buf))
3486               (setq wl-summary-buffer-disp-folder nil)
3487             (setq wl-summary-buffer-disp-folder t)))
3488       (if (not wl-summary-buffer-disp-folder)
3489           ;; hide message window
3490           (let ((mes-win (and wl-message-buffer
3491                               (get-buffer-window wl-message-buffer)))
3492                 (wl-stay-folder-window t))
3493             (if mes-win (delete-window mes-win))
3494             ;; hide your folder window
3495             (if (setq fld-buf (get-buffer wl-folder-buffer-name))
3496                 (if (setq fld-win (get-buffer-window fld-buf))
3497                     (progn
3498                       (delete-window (get-buffer-window cur-buf))
3499                       (select-window fld-win)
3500                       (switch-to-buffer cur-buf))))
3501             (run-hooks 'wl-summary-toggle-disp-folder-off-hook)
3502             ;; resume message window.
3503             (when mes-win
3504               (wl-message-select-buffer wl-message-buffer)
3505               (run-hooks 'wl-summary-toggle-disp-folder-message-resumed-hook)
3506               (select-window (get-buffer-window cur-buf))))
3507         ;; hide message window
3508         (let ((wl-stay-folder-window t)
3509               (mes-win (and wl-message-buffer
3510                             (get-buffer-window wl-message-buffer))))
3511           (if mes-win (delete-window mes-win))
3512           (select-window (get-buffer-window cur-buf))
3513           ;; display wl-folder window!!
3514           (if (setq fld-buf (get-buffer wl-folder-buffer-name))
3515               (if (setq fld-win (get-buffer-window fld-buf))
3516                   ;; folder win is already displayed.
3517                   (select-window fld-win)
3518                 ;; folder win is not displayed...occupy all.
3519                 (switch-to-buffer fld-buf))
3520             ;; no folder buf
3521             (wl-folder))
3522           (split-window-horizontally wl-folder-window-width)
3523           (other-window 1)
3524           (switch-to-buffer cur-buf)
3525           ;; resume message window.
3526           (run-hooks 'wl-summary-toggle-disp-folder-on-hook)
3527           (when mes-win
3528             (wl-message-select-buffer wl-message-buffer)
3529             (run-hooks 'wl-summary-toggle-disp-folder-message-resumed-hook)
3530             (select-window (get-buffer-window cur-buf))))))))
3531   (run-hooks 'wl-summary-toggle-disp-folder-hook))
3532
3533 (defun wl-summary-toggle-disp-msg (&optional arg)
3534   (interactive)
3535   (let ((cur-buf (current-buffer))
3536         fld-buf fld-win
3537         summary-win)
3538     (cond
3539      ((eq arg 'on)
3540       (setq wl-summary-buffer-disp-msg t)
3541       (save-excursion
3542         ;; hide your folder window
3543         (if (and (not wl-stay-folder-window)
3544                  (setq fld-buf (get-buffer wl-folder-buffer-name)))
3545             (if (setq fld-win (get-buffer-window fld-buf))
3546                 (unless (one-window-p fld-win)
3547                   (delete-window fld-win))))))
3548      ((eq arg 'off)
3549       (wl-delete-all-overlays)
3550       (setq wl-summary-buffer-disp-msg nil)
3551       (save-excursion
3552         (when (buffer-live-p wl-message-buffer)
3553           (wl-message-select-buffer wl-message-buffer)
3554           (delete-window)
3555           (and (get-buffer-window cur-buf)
3556                (select-window (get-buffer-window cur-buf))))
3557         (run-hooks 'wl-summary-toggle-disp-off-hook)))
3558      (t
3559       (if (and wl-message-buffer
3560                (get-buffer-window wl-message-buffer)) ; already displayed
3561           (setq wl-summary-buffer-disp-msg nil)
3562         (setq wl-summary-buffer-disp-msg t))
3563       (if wl-summary-buffer-disp-msg
3564           (progn
3565             (wl-summary-redisplay)
3566 ;;; hide your folder window
3567 ;;;         (setq fld-buf (get-buffer wl-folder-buffer-name))
3568 ;;;         (if (setq fld-win (get-buffer-window fld-buf))
3569 ;;;             (delete-window fld-win)))
3570             (run-hooks 'wl-summary-toggle-disp-on-hook))
3571         (wl-delete-all-overlays)
3572         (save-excursion
3573           (wl-message-select-buffer wl-message-buffer)
3574           (delete-window)
3575           (select-window (get-buffer-window cur-buf))
3576           (setq wl-message-buffer nil)
3577           (run-hooks 'wl-summary-toggle-disp-off-hook))
3578 ;;;     (switch-to-buffer cur-buf)
3579         )))
3580     (run-hooks 'wl-summary-buffer-window-scroll-functions)))
3581
3582 (defun wl-summary-next-line-content ()
3583   "Show next line of the message."
3584   (interactive)
3585   (let ((cur-buf (current-buffer)))
3586     (wl-summary-toggle-disp-msg 'on)
3587     (when (wl-summary-set-message-buffer-or-redisplay 'ignore-original)
3588       (set-buffer cur-buf)
3589       (wl-message-next-page 1))))
3590
3591 (defun wl-summary-prev-line-content ()
3592   (interactive)
3593   (let ((cur-buf (current-buffer)))
3594     (wl-summary-toggle-disp-msg 'on)
3595     (when (wl-summary-set-message-buffer-or-redisplay 'ignore-original)
3596       (set-buffer cur-buf)
3597       (wl-message-prev-page 1))))
3598
3599 (defun wl-summary-next-page ()
3600   (interactive)
3601   (let ((cur-buf (current-buffer)))
3602     (wl-summary-toggle-disp-msg 'on)
3603     (when (wl-summary-set-message-buffer-or-redisplay 'ignore-original)
3604       (set-buffer cur-buf)
3605       (wl-message-next-page))))
3606
3607 (defun wl-summary-prev-page ()
3608   (interactive)
3609   (let ((cur-buf (current-buffer)))
3610     (wl-summary-toggle-disp-msg 'on)
3611     (when (wl-summary-set-message-buffer-or-redisplay 'ignore-original)
3612       (set-buffer cur-buf)
3613       (wl-message-prev-page))))
3614
3615 (defsubst wl-summary-no-mime-p (folder)
3616   (wl-string-match-member (elmo-folder-name-internal folder)
3617                           wl-summary-no-mime-folder-list))
3618
3619 (defun wl-summary-set-message-buffer-or-redisplay (&rest args)
3620   "Set message buffer.
3621 If message is not displayed yet, display it.
3622 Return t if message exists."
3623   (let ((folder wl-summary-buffer-elmo-folder)
3624         (number (wl-summary-message-number))
3625         cur-folder cur-number message-last-pos)
3626     (when (buffer-live-p wl-message-buffer)
3627       (save-window-excursion
3628         (wl-message-select-buffer wl-message-buffer)
3629         (setq cur-folder wl-message-buffer-cur-folder)
3630         (setq cur-number wl-message-buffer-cur-number)))
3631     (if (and (string= (elmo-folder-name-internal folder) (or cur-folder ""))
3632              (eq number (or cur-number 0)))
3633         (progn
3634           (set-buffer wl-message-buffer)
3635           t)
3636       (if (wl-summary-no-mime-p folder)
3637           (wl-summary-redisplay-no-mime-internal folder number)
3638         (wl-summary-redisplay-internal folder number))
3639       (when (buffer-live-p wl-message-buffer)
3640         (set-buffer wl-message-buffer))
3641       nil)))
3642
3643 (defun wl-summary-target-mark-forward (&optional arg)
3644   (interactive "P")
3645   (let ((mlist (nreverse wl-summary-buffer-target-mark-list))
3646         (summary-buf (current-buffer))
3647         (wl-draft-forward t)
3648         start-point
3649         draft-buf)
3650     (wl-summary-jump-to-msg (car mlist))
3651     (wl-summary-forward t)
3652     (setq start-point (point))
3653     (setq draft-buf (current-buffer))
3654     (setq mlist (cdr mlist))
3655     (save-window-excursion
3656       (when mlist
3657         (while mlist
3658           (set-buffer summary-buf)
3659           (wl-summary-jump-to-msg (car mlist))
3660           (wl-summary-redisplay)
3661           (set-buffer draft-buf)
3662           (goto-char (point-max))
3663           (wl-draft-insert-message)
3664           (setq mlist (cdr mlist)))
3665         (wl-draft-body-goto-top)
3666         (wl-draft-enclose-digest-region (point) (point-max)))
3667       (goto-char start-point)
3668       (save-excursion
3669         (set-buffer summary-buf)
3670         (wl-summary-delete-all-temp-marks)))
3671     (run-hooks 'wl-mail-setup-hook)))
3672
3673 (defun wl-summary-target-mark-reply-with-citation (&optional arg)
3674   (interactive "P")
3675   (let ((mlist (nreverse wl-summary-buffer-target-mark-list))
3676         (summary-buf (current-buffer))
3677         change-major-mode-hook
3678         start-point
3679         draft-buf)
3680     (wl-summary-jump-to-msg (car mlist))
3681     (when (wl-summary-reply arg t)
3682       (goto-char (point-max))
3683       (setq start-point (point-marker))
3684       (setq draft-buf (current-buffer))
3685       (save-window-excursion
3686         (while mlist
3687           (set-buffer summary-buf)
3688           (delete-other-windows)
3689           (wl-summary-jump-to-msg (car mlist))
3690           (wl-summary-redisplay)
3691           (set-buffer draft-buf)
3692           (goto-char (point-max))
3693           (wl-draft-yank-original)
3694           (setq mlist (cdr mlist)))
3695         (goto-char start-point)
3696         (save-excursion
3697           (set-buffer summary-buf)
3698           (wl-summary-delete-all-temp-marks)))
3699       (wl-draft-reply-position wl-draft-reply-default-position)
3700       (run-hooks 'wl-mail-setup-hook))))
3701
3702 (defun wl-summary-reply-with-citation (&optional arg)
3703   (interactive "P")
3704   (when (wl-summary-reply arg t)
3705     (goto-char (point-max))
3706     (wl-draft-yank-original)
3707     (wl-draft-reply-position wl-draft-reply-default-position)
3708     (run-hooks 'wl-mail-setup-hook)))
3709
3710 (defun wl-summary-jump-to-msg-by-message-id (&optional id)
3711   (interactive)
3712   (let* ((original (wl-summary-message-number))
3713          (msgid (elmo-string (or id (read-from-minibuffer "Message-ID: "))))
3714          (entity (elmo-message-entity wl-summary-buffer-elmo-folder msgid))
3715          msg otherfld schar
3716          (errmsg (format "No message with id \"%s\" in the folder." msgid)))
3717     (if (setq msg (elmo-message-entity-number entity))
3718         (progn
3719           (wl-thread-jump-to-msg msg)
3720           t)
3721       ;; for XEmacs!
3722       (if (and elmo-use-database
3723                (setq errmsg
3724                      (format
3725                       "No message with id \"%s\" in the database." msgid))
3726                (setq otherfld (elmo-database-msgid-get msgid)))
3727           (if (cdr (wl-summary-jump-to-msg-internal
3728                     (car otherfld) (nth 1 otherfld) 'no-sync))
3729               t ; succeed.
3730             ;; Back to original.
3731             (wl-summary-jump-to-msg-internal
3732              (wl-summary-buffer-folder-name) original 'no-sync))
3733         (cond ((eq wl-summary-search-via-nntp 'confirm)
3734                (require 'elmo-nntp)
3735                (message "Search message in nntp server \"%s\" <y/n/s(elect)>? "
3736                         elmo-nntp-default-server)
3737                (setq schar (let ((cursor-in-echo-area t)) (read-char)))
3738                (cond ((eq schar ?y)
3739                       (wl-summary-jump-to-msg-by-message-id-via-nntp msgid))
3740                      ((eq schar ?s)
3741                       (wl-summary-jump-to-msg-by-message-id-via-nntp
3742                        msgid
3743                        (read-from-minibuffer "NNTP Server: ")))
3744                      (t
3745                       (message "%s" errmsg)
3746                       nil)))
3747               ((or (eq wl-summary-search-via-nntp 'force)
3748                    (and
3749                     (eq (elmo-folder-type-internal wl-summary-buffer-elmo-folder)
3750                         'nntp)
3751                     wl-summary-search-via-nntp))
3752                (wl-summary-jump-to-msg-by-message-id-via-nntp msgid))
3753               (t
3754                (message "%s" errmsg)
3755                nil))))))
3756
3757 (defun wl-summary-jump-to-msg-by-message-id-via-nntp (&optional id server-spec)
3758   (interactive)
3759   (let* ((msgid (elmo-string (or id (read-from-minibuffer "Message-ID: "))))
3760          newsgroups folder ret
3761          user server port type spec)
3762     (if server-spec
3763         (if (string-match "^-" server-spec)
3764             (setq spec (wl-folder-get-elmo-folder server-spec)
3765                   user (elmo-net-folder-user-internal spec)
3766                   server (elmo-net-folder-server-internal spec)
3767                   port (elmo-net-folder-port-internal spec)
3768                   type (elmo-net-folder-stream-type-internal spec))
3769           (setq server server-spec)))
3770     (when (setq ret (elmo-nntp-get-newsgroup-by-msgid
3771                      msgid
3772                      (or server elmo-nntp-default-server)
3773                      (or user elmo-nntp-default-user)
3774                      (or port elmo-nntp-default-port)
3775                      (or type elmo-nntp-default-stream-type)))
3776       (setq newsgroups (elmo-nntp-parse-newsgroups ret))
3777       (setq folder (concat "-" (car newsgroups)
3778                            (elmo-nntp-folder-postfix user server port type)))
3779       (catch 'found
3780         (while newsgroups
3781           (if (wl-folder-entity-exists-p (car newsgroups)
3782                                          wl-folder-newsgroups-hashtb)
3783               (throw 'found
3784                      (setq folder (concat "-" (car newsgroups)
3785                                           (elmo-nntp-folder-postfix
3786                                            user server port type)))))
3787           (setq newsgroups (cdr newsgroups)))))
3788     (if ret
3789         (wl-summary-jump-to-msg-internal folder nil 'update msgid)
3790       (message "No message id \"%s\" in nntp server \"%s\"."
3791                msgid (or server elmo-nntp-default-server))
3792       nil)))
3793
3794 (defun wl-summary-jump-to-msg-internal (folder msg scan-type &optional msgid)
3795   (let (wl-auto-select-first entity)
3796     (if (or (string= folder (wl-summary-buffer-folder-name))
3797             (y-or-n-p
3798              (format
3799               "Message was found in the folder \"%s\". Jump to it? "
3800               folder)))
3801         (progn
3802           (unwind-protect
3803               (wl-summary-goto-folder-subr
3804                folder scan-type nil nil t)
3805             (if msgid
3806                 (setq msg
3807                       (elmo-message-entity-number
3808                        (elmo-message-entity
3809                         wl-summary-buffer-elmo-folder
3810                         msgid))))
3811             (setq entity (wl-folder-search-entity-by-name folder
3812                                                           wl-folder-entity
3813                                                           'folder))
3814             (if entity
3815                 (wl-folder-set-current-entity-id
3816                  (wl-folder-get-entity-id entity))))
3817           (if (null msg)
3818               (message "Message was not found currently in this folder.")
3819             (setq msg (and (wl-thread-jump-to-msg msg) msg)))
3820           (cons folder msg)))))
3821
3822 (defun wl-summary-jump-to-parent-message (arg)
3823   (interactive "P")
3824   (let ((cur-buf (current-buffer))
3825         (disp-msg wl-summary-buffer-disp-msg)
3826         (number (wl-summary-message-number))
3827         (regexp "\\(<[^<>]*>\\)[ \t]*$")
3828         (i -1) ;; xxx
3829         msg-id msg-num ref-list ref irt)
3830     (if (null number)
3831         (message "No message.")
3832       (when (eq wl-summary-buffer-view 'thread)
3833         (cond ((and arg (not (numberp arg)))
3834                (setq msg-num
3835                      (wl-thread-entity-get-number
3836                       (wl-thread-entity-get-top-entity
3837                        (wl-thread-get-entity number)))))
3838               ((and arg (numberp arg))
3839                (setq i 0)
3840                (setq msg-num number)
3841                (while (< i arg)
3842                  (setq msg-num
3843                        (wl-thread-entity-get-number
3844                         (wl-thread-entity-get-parent-entity
3845                          (wl-thread-get-entity msg-num))))
3846                  (setq i (1+ i))))
3847               (t (setq msg-num
3848                        (wl-thread-entity-get-number
3849                         (wl-thread-entity-get-parent-entity
3850                          (wl-thread-get-entity number)))))))
3851       (when (null msg-num)
3852         (wl-summary-set-message-buffer-or-redisplay)
3853         (set-buffer (wl-message-get-original-buffer))
3854         (message "Searching parent message...")
3855         (setq ref (std11-field-body "References")
3856               irt (std11-field-body "In-Reply-To"))
3857         (cond
3858          ((and arg (not (numberp arg)) ref (not (string= ref ""))
3859                (string-match regexp ref))
3860           ;; The first message of the thread.
3861           (setq msg-id (wl-match-string 1 ref)))
3862          ;; "In-Reply-To:" has only one msg-id.
3863          ((and (null arg) irt (not (string= irt ""))
3864                (string-match regexp irt))
3865           (setq msg-id (wl-match-string 1 irt)))
3866          ((and (or (null arg) (numberp arg)) ref (not (string= ref ""))
3867                (string-match regexp ref))
3868           ;; "^" searching parent, "C-u 2 ^" looking for grandparent.
3869           (while (string-match regexp ref)
3870             (setq ref-list
3871                   (append (list
3872                            (wl-match-string 1 ref))
3873                           ref-list))
3874             (setq ref (substring ref (match-end 0)))
3875             (setq i (1+ i)))
3876           (setq msg-id
3877                 (if (null arg) (nth 0 ref-list) ;; previous
3878                   (if (<= arg i) (nth (1- arg) ref-list)
3879                     (nth i ref-list))))))
3880         (set-buffer cur-buf)
3881         (or disp-msg (wl-summary-toggle-disp-msg 'off)))
3882       (cond ((and (null msg-id) (null msg-num))
3883              (message "No parent message!")
3884              nil)
3885             ((and msg-id (wl-summary-jump-to-msg-by-message-id msg-id))
3886              (if wl-summary-buffer-disp-msg (wl-summary-redisplay))
3887              (message "Searching parent message...done")
3888              t)
3889             ((and msg-num (wl-summary-jump-to-msg msg-num))
3890              (if wl-summary-buffer-disp-msg (wl-summary-redisplay))
3891              (message "Searching parent message...done")
3892              t)
3893             (t ; failed.
3894              (message "Parent message was not found.")
3895              nil)))))
3896
3897 (defun wl-summary-reply (&optional arg without-setup-hook)
3898   "Reply to current message. Default is \"wide\" reply.
3899 Reply to author if invoked with ARG."
3900   (interactive "P")
3901   (let ((folder wl-summary-buffer-elmo-folder)
3902         (number (wl-summary-message-number))
3903         (summary-buf (current-buffer))
3904         (winconf (current-window-configuration))
3905         mes-buf)
3906     (when number
3907       (save-excursion
3908         (wl-summary-set-message-buffer-or-redisplay))
3909       (setq mes-buf wl-message-buffer)
3910       (wl-message-select-buffer wl-message-buffer)
3911       (set-buffer mes-buf)
3912       (condition-case err
3913           (when (setq mes-buf (wl-message-get-original-buffer))
3914             (wl-draft-reply mes-buf arg summary-buf number)
3915             (wl-draft-reply-position wl-draft-reply-default-position)
3916             (unless without-setup-hook
3917               (run-hooks 'wl-mail-setup-hook)))
3918         (error (set-window-configuration winconf)
3919                (signal (car err)(cdr err))))
3920       (with-current-buffer summary-buf
3921         (elmo-folder-set-flag folder (list number) 'answered)
3922         (wl-summary-update-persistent-mark))
3923       t)))
3924
3925 (defun wl-summary-write ()
3926   "Write a new draft from Summary."
3927   (interactive)
3928   (wl-draft (list (cons 'To ""))
3929             nil nil nil nil (wl-summary-buffer-folder-name))
3930   (run-hooks 'wl-mail-setup-hook)
3931   (mail-position-on-field "To"))
3932
3933 (defvar wl-summary-write-current-folder-functions
3934   '(wl-folder-get-newsgroups
3935     wl-folder-guess-mailing-list-by-refile-rule
3936     wl-folder-guess-mailing-list-by-folder-name)
3937   "Newsgroups or Mailing List address guess functions list.
3938 Call from `wl-summary-write-current-folder'.
3939 When guess function return nil, challenge next guess-function.")
3940
3941 (defun wl-summary-write-current-folder (&optional folder)
3942   "Write message to current FOLDER's newsgroup or mailing-list.
3943 Use function list is `wl-summary-write-current-folder-functions'."
3944   (interactive)
3945   ;; default FOLDER is current buffer folder
3946   (setq folder (or folder (wl-summary-buffer-folder-name)))
3947   (let ((func-list wl-summary-write-current-folder-functions)
3948         guess-list guess-func)
3949     (while func-list
3950       (setq guess-list (funcall (car func-list) folder))
3951       (if (null guess-list)
3952           (setq func-list (cdr func-list))
3953         (setq guess-func (car func-list))
3954         (setq func-list nil)))
3955     (if (null guess-func)
3956         (wl-summary-write)
3957       (unless (or (stringp (nth 0 guess-list))
3958                   (stringp (nth 1 guess-list))
3959                   (stringp (nth 2 guess-list)))
3960         (error "Invalid value return guess function `%s'"
3961                (symbol-name guess-func)))
3962       (wl-draft (list (cons 'To (nth 0 guess-list))
3963                       (cons 'Cc (nth 1 guess-list))
3964                       (cons 'Newsgroups (nth 2 guess-list)))
3965                 nil nil nil nil folder)
3966       (run-hooks 'wl-mail-setup-hook)
3967       (mail-position-on-field "Subject"))))
3968
3969 (defun wl-summary-forward (&optional without-setup-hook)
3970   ""
3971   (interactive)
3972   (let ((folder wl-summary-buffer-elmo-folder)
3973         (number (wl-summary-message-number))
3974         (summary-buf (current-buffer))
3975         (wl-draft-forward t)
3976         mes-buf
3977         entity subject num)
3978     (if (null number)
3979         (message "No message.")
3980       (if (and (elmo-message-use-cache-p folder number)
3981                (eq (elmo-file-cache-status
3982                     (elmo-file-cache-get
3983                      (elmo-message-field folder number 'message-id)))
3984                    'section))
3985           ;; Reload.
3986           (wl-summary-redisplay-internal nil nil 'force-reload)
3987         (wl-summary-redisplay-internal folder number))
3988       (setq mes-buf wl-message-buffer)
3989       (wl-message-select-buffer mes-buf)
3990       ;; get original subject.
3991       (if summary-buf
3992           (save-excursion
3993             (set-buffer summary-buf)
3994             (setq subject
3995                   (or (elmo-message-entity-field
3996                        (elmo-message-entity folder number) 'subject 'decode)
3997                       ""))))
3998       (set-buffer mes-buf)
3999       (wl-draft-forward subject summary-buf)
4000       (unless without-setup-hook
4001         (run-hooks 'wl-mail-setup-hook)))))
4002
4003 (defun wl-summary-click (e)
4004   (interactive "e")
4005   (mouse-set-point e)
4006   (wl-summary-read))
4007
4008 (defun wl-summary-read ()
4009   "Proceed reading message in the summary buffer."
4010   (interactive)
4011   (let ((cur-buf (current-buffer)))
4012     (wl-summary-toggle-disp-msg 'on)
4013     (when (wl-summary-set-message-buffer-or-redisplay 'ignore-original)
4014       (set-buffer cur-buf)
4015       (if (wl-message-next-page)
4016           (wl-summary-down t)))))
4017
4018 (defsubst wl-summary-cursor-move-surface (downward interactive)
4019   (if wl-summary-move-direction-toggle
4020       (setq wl-summary-move-direction-downward downward))
4021   (let ((start (point))
4022         (skip-tmark-regexp (wl-regexp-opt wl-summary-skip-mark-list))
4023         (skip t)
4024         (column (current-column))
4025         goto-next next-entity finfo)
4026     (beginning-of-line)
4027     (while (and skip
4028                 (not (if downward (eobp) (bobp))))
4029       (if downward
4030           (forward-line 1)
4031         (forward-line -1))
4032       (setq skip (or (string-match skip-tmark-regexp
4033                                    (wl-summary-temp-mark))
4034                      (not (elmo-message-accessible-p
4035                            wl-summary-buffer-elmo-folder
4036                            (wl-summary-message-number))))))
4037     (if (if downward (eobp) (and (bobp) skip)) (setq goto-next t))
4038     (if (or (eobp) (and (bobp) skip))
4039         (goto-char start))
4040     (move-to-column column)
4041
4042     (if (not goto-next)
4043         (if wl-summary-buffer-disp-msg
4044             (wl-summary-redisplay))
4045       (if interactive
4046           (cond
4047            ((and (not downward) wl-summary-buffer-prev-folder-function)
4048             (funcall wl-summary-buffer-prev-folder-function))
4049            ((and downward wl-summary-buffer-next-folder-function)
4050             (funcall wl-summary-buffer-next-folder-function))
4051            (t
4052             (when wl-auto-select-next
4053               (setq next-entity
4054                     (if downward
4055                         (wl-summary-get-next-folder)
4056                       (wl-summary-get-prev-folder)))
4057               (if next-entity
4058                   (setq finfo (wl-folder-get-entity-info next-entity))))
4059             (wl-ask-folder
4060              '(lambda () (wl-summary-next-folder-or-exit next-entity))
4061              (format
4062               "No more messages. Type SPC to go to %s."
4063               (wl-summary-entity-info-msg next-entity finfo)))))))))
4064
4065 (defun wl-summary-prev (&optional interactive)
4066   (interactive)
4067   (wl-summary-cursor-move-surface nil (or interactive (interactive-p))))
4068
4069 (defun wl-summary-next (&optional interactive)
4070   (interactive)
4071   (wl-summary-cursor-move-surface t (or interactive (interactive-p))))
4072
4073 (defun wl-summary-up (&optional interactive skip-no-unread)
4074   ""
4075   (interactive)
4076   (if wl-summary-move-direction-toggle
4077       (setq wl-summary-move-direction-downward nil))
4078   (if (wl-summary-cursor-up)
4079       (if wl-summary-buffer-disp-msg
4080           (wl-summary-redisplay))
4081     (if (or interactive
4082             (interactive-p))
4083         (if wl-summary-buffer-prev-folder-function
4084             (funcall wl-summary-buffer-prev-folder-function)
4085           (let (next-entity finfo)
4086             (when wl-auto-select-next
4087               (progn
4088                 (setq next-entity (wl-summary-get-prev-unread-folder))
4089                 (if next-entity
4090                     (setq finfo (wl-folder-get-entity-info next-entity)))))
4091             (if (and skip-no-unread
4092                      (eq wl-auto-select-next 'skip-no-unread))
4093                 (wl-summary-next-folder-or-exit next-entity t)
4094               (wl-ask-folder
4095                '(lambda () (wl-summary-next-folder-or-exit next-entity t))
4096                (format
4097                 "No more unread messages. Type SPC to go to %s."
4098                 (wl-summary-entity-info-msg next-entity finfo)))))))))
4099
4100 (defun wl-summary-get-prev-folder ()
4101   (let ((folder-buf (get-buffer wl-folder-buffer-name))
4102         last-entity cur-id)
4103     (when folder-buf
4104       (setq cur-id (save-excursion (set-buffer folder-buf)
4105                                    wl-folder-buffer-cur-entity-id))
4106       (wl-folder-get-prev-folder cur-id))))
4107
4108 (defun wl-summary-get-next-folder ()
4109   (let ((folder-buf (get-buffer wl-folder-buffer-name))
4110         cur-id)
4111     (when folder-buf
4112       (setq cur-id (save-excursion (set-buffer folder-buf)
4113                                    wl-folder-buffer-cur-entity-id))
4114       (wl-folder-get-next-folder cur-id))))
4115
4116 (defun wl-summary-get-next-unread-folder ()
4117   (let ((folder-buf (get-buffer wl-folder-buffer-name))
4118         cur-id)
4119     (when folder-buf
4120       (setq cur-id (save-excursion (set-buffer folder-buf)
4121                                    wl-folder-buffer-cur-entity-id))
4122       (wl-folder-get-next-folder cur-id 'unread))))
4123
4124 (defun wl-summary-get-prev-unread-folder ()
4125   (let ((folder-buf (get-buffer wl-folder-buffer-name))
4126         cur-id)
4127     (when folder-buf
4128       (setq cur-id (save-excursion (set-buffer folder-buf)
4129                                    wl-folder-buffer-cur-entity-id))
4130       (wl-folder-get-prev-folder cur-id 'unread))))
4131
4132 (defun wl-summary-down (&optional interactive skip-no-unread)
4133   (interactive)
4134   (if wl-summary-move-direction-toggle
4135       (setq wl-summary-move-direction-downward t))
4136   (if (wl-summary-cursor-down)
4137       (if wl-summary-buffer-disp-msg
4138           (wl-summary-redisplay))
4139     (if (or interactive
4140             (interactive-p))
4141         (if wl-summary-buffer-next-folder-function
4142             (funcall wl-summary-buffer-next-folder-function)
4143           (let (next-entity finfo)
4144             (when wl-auto-select-next
4145               (setq next-entity (wl-summary-get-next-unread-folder)))
4146             (if next-entity
4147                 (setq finfo (wl-folder-get-entity-info next-entity)))
4148             (if (and skip-no-unread
4149                      (eq wl-auto-select-next 'skip-no-unread))
4150                 (wl-summary-next-folder-or-exit next-entity)
4151               (wl-ask-folder
4152                '(lambda () (wl-summary-next-folder-or-exit next-entity))
4153                (format
4154                 "No more unread messages. Type SPC to go to %s."
4155                 (wl-summary-entity-info-msg next-entity finfo)))))))))
4156
4157 (defun wl-summary-goto-last-displayed-msg ()
4158   (interactive)
4159   (unless wl-summary-buffer-last-displayed-msg
4160     (setq wl-summary-buffer-last-displayed-msg
4161           wl-summary-buffer-current-msg))
4162   (if wl-summary-buffer-last-displayed-msg
4163       (progn
4164         (wl-summary-jump-to-msg wl-summary-buffer-last-displayed-msg)
4165         (if wl-summary-buffer-disp-msg
4166             (wl-summary-redisplay)))
4167     (message "No last message.")))
4168
4169 (defun wl-summary-redisplay (&optional arg)
4170   (interactive "P")
4171   (if (and (not arg)
4172            (wl-summary-no-mime-p wl-summary-buffer-elmo-folder))
4173       (wl-summary-redisplay-no-mime)
4174     (wl-summary-redisplay-internal nil nil arg)))
4175
4176 (defsubst wl-summary-redisplay-internal (&optional folder number force-reload)
4177   (interactive)
4178   (let* ((folder (or folder wl-summary-buffer-elmo-folder))
4179          (num (or number (wl-summary-message-number)))
4180          (wl-mime-charset      wl-summary-buffer-mime-charset)
4181          (default-mime-charset wl-summary-buffer-mime-charset)
4182          no-folder-mark fld-buf fld-win thr-entity)
4183     (if (and wl-thread-open-reading-thread
4184              (eq wl-summary-buffer-view 'thread)
4185              (not (wl-thread-entity-get-opened
4186                    (setq thr-entity (wl-thread-get-entity
4187                                      num))))
4188              (wl-thread-entity-get-children thr-entity))
4189         (wl-thread-force-open))
4190     (if num
4191         (progn
4192           (setq wl-summary-buffer-disp-msg t)
4193           (setq wl-summary-buffer-last-displayed-msg
4194                 wl-summary-buffer-current-msg)
4195           ;; hide folder window
4196           (if (and (not wl-stay-folder-window)
4197                    (setq fld-buf (get-buffer wl-folder-buffer-name)))
4198               (if (setq fld-win (get-buffer-window fld-buf))
4199                   (delete-window fld-win)))
4200           (setq wl-current-summary-buffer (current-buffer))
4201           (setq no-folder-mark
4202                 ;; If cache is used, change folder-mark.
4203                 (if (wl-message-redisplay folder num
4204                                           'mime
4205                                           (or
4206                                            force-reload
4207                                            (string= (elmo-folder-name-internal
4208                                                      folder)
4209                                                     wl-draft-folder)))
4210                     nil
4211                   ;; plugged, then leave folder-mark.
4212                   (if (and (not (elmo-folder-local-p
4213                                  wl-summary-buffer-elmo-folder))
4214                            (elmo-folder-plugged-p
4215                             wl-summary-buffer-elmo-folder))
4216                       'leave)))
4217           (when (elmo-message-use-cache-p folder num)
4218             (elmo-message-set-cached folder num t))
4219           (ignore-errors
4220             (if (elmo-message-flagged-p wl-summary-buffer-elmo-folder
4221                                         num
4222                                         'unread)
4223                 (wl-summary-mark-as-read num no-folder-mark)
4224               (wl-summary-update-persistent-mark)))
4225           (setq wl-summary-buffer-current-msg num)
4226           (when wl-summary-recenter
4227             (recenter (/ (- (window-height) 2) 2))
4228             (if (not wl-summary-indent-length-limit)
4229                 (wl-horizontal-recenter)))
4230           (wl-highlight-summary-displaying)
4231           (wl-message-buffer-prefetch-next folder num
4232                                            wl-message-buffer-prefetch-depth
4233                                            (current-buffer)
4234                                            wl-summary-buffer-mime-charset)
4235           (run-hooks 'wl-summary-redisplay-hook))
4236       (message "No message to display."))))
4237
4238 (defun wl-summary-redisplay-no-mime (&optional ask-coding)
4239   "Display message without MIME decoding.
4240 If ASK-CODING is non-nil, coding-system for the message is asked."
4241   (interactive "P")
4242   (let ((elmo-mime-display-as-is-coding-system
4243          (if ask-coding
4244              (or (read-coding-system "Coding system: ")
4245                  elmo-mime-display-as-is-coding-system)
4246            elmo-mime-display-as-is-coding-system)))
4247     (wl-summary-redisplay-no-mime-internal)))
4248
4249 (defun wl-summary-redisplay-no-mime-internal (&optional folder number)
4250   (let* ((fld (or folder wl-summary-buffer-elmo-folder))
4251          (num (or number (wl-summary-message-number)))
4252          wl-break-pages)
4253     (if num
4254         (progn
4255           (setq wl-summary-buffer-disp-msg t)
4256           (setq wl-summary-buffer-last-displayed-msg
4257                 wl-summary-buffer-current-msg)
4258           (setq wl-current-summary-buffer (current-buffer))
4259           (wl-message-redisplay fld num 'as-is
4260                                 (string= (elmo-folder-name-internal fld)
4261                                          wl-draft-folder))
4262           (ignore-errors
4263             (if (elmo-message-flagged-p fld num 'unread)
4264                 (wl-summary-mark-as-read num); no-folder-mark)
4265               (wl-summary-update-persistent-mark)))
4266           (setq wl-summary-buffer-current-msg num)
4267           (when wl-summary-recenter
4268             (recenter (/ (- (window-height) 2) 2))
4269             (if (not wl-summary-indent-length-limit)
4270                 (wl-horizontal-recenter)))
4271           (wl-highlight-summary-displaying)
4272           (run-hooks 'wl-summary-redisplay-hook))
4273       (message "No message to display.")
4274       (wl-ask-folder 'wl-summary-exit
4275                      "No more messages. Type SPC to go to folder mode."))))
4276
4277 (defun wl-summary-redisplay-all-header (&optional folder number)
4278   (interactive)
4279   (let* ((fld (or folder wl-summary-buffer-elmo-folder))
4280          (num (or number (wl-summary-message-number)))
4281          (wl-mime-charset      wl-summary-buffer-mime-charset)
4282          (default-mime-charset wl-summary-buffer-mime-charset))
4283     (if num
4284         (progn
4285           (setq wl-summary-buffer-disp-msg t)
4286           (setq wl-summary-buffer-last-displayed-msg
4287                 wl-summary-buffer-current-msg)
4288           (setq wl-current-summary-buffer (current-buffer))
4289           (if (wl-message-redisplay fld num 'all-header
4290                                     (string= (elmo-folder-name-internal fld)
4291                                              wl-draft-folder))
4292               (wl-summary-mark-as-read num))
4293           (setq wl-summary-buffer-current-msg num)
4294           (when wl-summary-recenter
4295             (recenter (/ (- (window-height) 2) 2))
4296             (if (not wl-summary-indent-length-limit)
4297                 (wl-horizontal-recenter)))
4298           (wl-highlight-summary-displaying)
4299           (run-hooks 'wl-summary-redisplay-hook))
4300       (message "No message to display."))))
4301
4302 (defun wl-summary-jump-to-current-message ()
4303   "Jump into Message buffer."
4304   (interactive)
4305   (let (message-buf message-win)
4306     (if (setq message-buf wl-message-buffer)
4307         (if (setq message-win (get-buffer-window message-buf))
4308             (select-window message-win)
4309           (wl-message-select-buffer wl-message-buffer))
4310       (wl-summary-redisplay)
4311       (wl-message-select-buffer wl-message-buffer))))
4312
4313 (defun wl-summary-cancel-message ()
4314   "Cancel an article on news."
4315   (interactive)
4316   (if (null (wl-summary-message-number))
4317       (message "No message.")
4318     (let ((summary-buf (current-buffer))
4319           message-buf)
4320       (wl-summary-set-message-buffer-or-redisplay)
4321       (if (setq message-buf (wl-message-get-original-buffer))
4322           (set-buffer message-buf))
4323       (unless (wl-message-news-p)
4324         (set-buffer summary-buf)
4325         (if (and (eq (elmo-folder-type-internal wl-summary-buffer-elmo-folder)
4326                      'nntp)
4327                  (y-or-n-p "Cannot get Newsgroups. Fetch again? "))
4328             (progn
4329               (wl-summary-redisplay t)
4330               (wl-summary-supersedes-message))
4331           (error "This is not a news article; supersedes is impossible")))
4332       (when (yes-or-no-p "Do you really want to cancel this article? ")
4333         (let (from newsgroups message-id distribution buf)
4334           (save-excursion
4335             (setq from (std11-field-body "from")
4336                   newsgroups (std11-field-body "newsgroups")
4337                   message-id (std11-field-body "message-id")
4338                   distribution (std11-field-body "distribution"))
4339             ;; Make sure that this article was written by the user.
4340             (unless (wl-address-user-mail-address-p
4341                      (wl-address-header-extract-address
4342                       (car (wl-parse-addresses from))))
4343               (error "This article is not yours"))
4344             ;; Make control message.
4345             (setq buf (set-buffer (get-buffer-create " *message cancel*")))
4346             (setq wl-draft-buffer-cur-summary-buffer summary-buf)
4347             (buffer-disable-undo (current-buffer))
4348             (erase-buffer)
4349             (insert "Newsgroups: " newsgroups "\n"
4350                     "From: " (wl-address-header-extract-address
4351                               wl-from) "\n"
4352                               "Subject: cmsg cancel " message-id "\n"
4353                               "Control: cancel " message-id "\n"
4354                               (if distribution
4355                                   (concat "Distribution: " distribution "\n")
4356                                 "")
4357                               mail-header-separator "\n"
4358                               wl-summary-cancel-message)
4359             (message "Canceling your message...")
4360             (wl-draft-raw-send t t) ; kill when done, force-pre-hooks.
4361             (message "Canceling your message...done")))))))
4362
4363 (defun wl-summary-supersedes-message ()
4364   "Supersede current message."
4365   (interactive)
4366   (wl-summary-toggle-disp-msg 'off)
4367   (let ((summary-buf (current-buffer))
4368         message-buf from)
4369     (wl-summary-set-message-buffer-or-redisplay)
4370     (if (setq message-buf (wl-message-get-original-buffer))
4371         (set-buffer message-buf))
4372     (unless (wl-message-news-p)
4373       (set-buffer summary-buf)
4374       (if (and (eq (elmo-folder-type-internal wl-summary-buffer-elmo-folder)
4375                    'nntp)
4376                (y-or-n-p "Cannot get Newsgroups. Fetch again? "))
4377           (progn
4378             (wl-summary-redisplay t)
4379             (wl-summary-supersedes-message))
4380         (error "This is not a news article; supersedes is impossible")))
4381     (save-excursion
4382       (setq from (std11-field-body "from"))
4383       ;; Make sure that this article was written by the user.
4384       (unless (wl-address-user-mail-address-p
4385                (wl-address-header-extract-address
4386                 (car (wl-parse-addresses from))))
4387         (error "This article is not yours"))
4388       (let* ((message-id (std11-field-body "message-id"))
4389              (followup-to (std11-field-body "followup-to"))
4390              (mail-default-headers
4391               (concat mail-default-headers
4392                       "Supersedes: " message-id "\n"
4393                       (and followup-to
4394                            (concat "Followup-To: " followup-to "\n")))))
4395         (if message-buf (set-buffer message-buf))
4396         (wl-draft-edit-string (buffer-substring (point-min) (point-max)))))))
4397
4398 (defun wl-summary-save (&optional arg wl-save-dir)
4399   "Save current message to disk."
4400   (interactive)
4401   (let ((filename)
4402         (num (wl-summary-message-number)))
4403     (if (null wl-save-dir)
4404         (setq wl-save-dir wl-temporary-file-directory))
4405     (if num
4406         (save-excursion
4407           (setq filename (expand-file-name
4408                           (int-to-string num)
4409                           wl-save-dir))
4410           (if (null (and arg
4411                          (null (file-exists-p filename))))
4412               (setq filename
4413                     (read-file-name "Save to file: " filename)))
4414
4415           (wl-summary-set-message-buffer-or-redisplay)
4416           (set-buffer (wl-message-get-original-buffer))
4417           (if (and (null arg) (file-exists-p filename))
4418               (if (y-or-n-p "File already exists.  override it? ")
4419                   (write-region (point-min) (point-max) filename))
4420             (write-region (point-min) (point-max) filename)))
4421       (message "No message to save."))
4422     num))
4423
4424 (defun wl-summary-save-region (beg end)
4425   (interactive "r")
4426   (save-excursion
4427     (save-restriction
4428       (wl-summary-narrow-to-region beg end)
4429       (goto-char (point-min))
4430       (let ((wl-save-dir
4431              (wl-read-directory-name "Save to directory: "
4432                                      wl-temporary-file-directory)))
4433         (if (null (file-exists-p wl-save-dir))
4434             (make-directory wl-save-dir))
4435         (if (eq wl-summary-buffer-view 'thread)
4436             (progn
4437               (while (not (eobp))
4438                 (let* ((number (wl-summary-message-number))
4439                        (entity (wl-thread-get-entity number)))
4440                   (if (wl-thread-entity-get-opened entity)
4441                       (wl-summary-save t wl-save-dir)
4442                     ;; closed
4443                     (wl-summary-save t wl-save-dir))
4444                   (forward-line 1))))
4445           (while (not (eobp))
4446             (wl-summary-save t wl-save-dir)
4447             (forward-line 1)))))))
4448
4449 ;; mew-summary-pipe-message()
4450 (defun wl-summary-pipe-message (prefix command)
4451   "Send this message via pipe."
4452   (interactive (list current-prefix-arg nil))
4453   (if (null (wl-summary-message-number))
4454       (message "No message.")
4455     (setq command (read-string "Shell command on message: "
4456                                wl-summary-shell-command-last))
4457     (if (y-or-n-p "Send this message to pipe? ")
4458         (wl-summary-pipe-message-subr prefix command))))
4459
4460 (defun wl-summary-target-mark-pipe (prefix command)
4461   "Send each marked messages via pipe."
4462   (interactive (list current-prefix-arg nil))
4463   (if (null wl-summary-buffer-target-mark-list)
4464       (message "No marked message.")
4465     (setq command (read-string "Shell command on each marked message: "
4466                                wl-summary-shell-command-last))
4467     (when (y-or-n-p "Send each marked message to pipe? ")
4468       (while (car wl-summary-buffer-target-mark-list)
4469         (let ((num (car wl-summary-buffer-target-mark-list)))
4470           (wl-thread-jump-to-msg num)
4471           (wl-summary-pipe-message-subr prefix command)
4472           (wl-summary-unmark))))))
4473
4474 (defun wl-summary-pipe-message-subr (prefix command)
4475   (save-excursion
4476     (wl-summary-set-message-buffer-or-redisplay)
4477     (set-buffer (wl-message-get-original-buffer))
4478     (if (string= command "")
4479         (setq command wl-summary-shell-command-last))
4480     (goto-char (point-min)) ; perhaps this line won't be necessary
4481     (if prefix
4482         (search-forward "\n\n"))
4483     (shell-command-on-region (point) (point-max) command nil)
4484     (setq wl-summary-shell-command-last command)))
4485
4486 (defun wl-summary-print-message (&optional arg)
4487   (interactive "P")
4488   (if (null (wl-summary-message-number))
4489       (message "No message.")
4490     (save-excursion
4491       (wl-summary-set-message-buffer-or-redisplay)
4492       (if (or (not (interactive-p))
4493               (y-or-n-p "Print ok? "))
4494           (progn
4495             (let ((buffer (generate-new-buffer " *print*")))
4496               (copy-to-buffer buffer (point-min) (point-max))
4497               (set-buffer buffer)
4498               (funcall wl-print-buffer-function)
4499               (kill-buffer buffer)))
4500         (message "")))))
4501
4502 (defun wl-summary-print-message-with-ps-print (&optional filename)
4503   "Print message via ps-print."
4504   (interactive)
4505   (if (null (wl-summary-message-number))
4506       (message "No message.")
4507     (setq filename (ps-print-preprint current-prefix-arg))
4508     (if (or (not (interactive-p))
4509             (y-or-n-p "Print ok? "))
4510         (let ((summary-buffer (current-buffer))
4511               wl-break-pages)
4512           (save-excursion
4513             (wl-summary-set-message-buffer-or-redisplay)
4514             ;; (wl-summary-redisplay-internal)
4515             (let* ((buffer (generate-new-buffer " *print*"))
4516                    (entity (progn
4517                              (set-buffer summary-buffer)
4518                              (elmo-message-entity
4519                               wl-summary-buffer-elmo-folder
4520                               (wl-summary-message-number))))
4521                    (wl-ps-subject
4522                     (and entity
4523                          (or (elmo-message-entity-field entity 'subject t)
4524                              "")))
4525                    (wl-ps-from
4526                     (and entity
4527                          (or (elmo-message-entity-field entity 'from t) "")))
4528                    (wl-ps-date
4529                     (and entity
4530                          (or (elmo-message-entity-field entity 'date) ""))))
4531               (run-hooks 'wl-ps-preprint-hook)
4532               (set-buffer wl-message-buffer)
4533               (copy-to-buffer buffer (point-min) (point-max))
4534               (set-buffer buffer)
4535               (unwind-protect
4536                   (let ((ps-left-header
4537                          (list (concat "(" wl-ps-subject ")")
4538                                (concat "(" wl-ps-from ")")))
4539                         (ps-right-header
4540                          (list "/pagenumberstring load"
4541                                (concat "(" wl-ps-date ")"))))
4542                     (run-hooks 'wl-ps-print-hook)
4543                     (funcall wl-ps-print-buffer-function filename))
4544                 (kill-buffer buffer)))))
4545       (message ""))))
4546
4547 (if (featurep 'ps-print) ; ps-print is available.
4548     (fset 'wl-summary-print-message 'wl-summary-print-message-with-ps-print))
4549
4550 (defun wl-summary-target-mark-print ()
4551   (interactive)
4552   (if (null wl-summary-buffer-target-mark-list)
4553       (message "No marked message.")
4554     (when (y-or-n-p "Print all marked messages. OK? ")
4555       (while (car wl-summary-buffer-target-mark-list)
4556         (let ((num (car wl-summary-buffer-target-mark-list)))
4557           (wl-thread-jump-to-msg num)
4558           (wl-summary-print-message)
4559           (wl-summary-unmark))))))
4560
4561 (defun wl-summary-folder-info-update ()
4562   (wl-folder-set-folder-updated
4563    (elmo-string (wl-summary-buffer-folder-name))
4564    (list 0
4565          (+ wl-summary-buffer-unread-count
4566             wl-summary-buffer-new-count)
4567          (elmo-folder-length
4568           wl-summary-buffer-elmo-folder))))
4569
4570 (defun wl-summary-get-original-buffer ()
4571   "Get original buffer for the current summary."
4572   (save-excursion
4573     (wl-summary-set-message-buffer-or-redisplay)
4574     (wl-message-get-original-buffer)))
4575
4576 (defun wl-summary-pack-number (&optional arg)
4577   (interactive "P")
4578   (elmo-folder-pack-numbers wl-summary-buffer-elmo-folder)
4579   (let (wl-use-scoring)
4580     (wl-summary-rescan nil nil t)))
4581
4582 (defun wl-summary-target-mark-uudecode ()
4583   (interactive)
4584   (let ((mlist (reverse wl-summary-buffer-target-mark-list))
4585         (summary-buf (current-buffer))
4586         (tmp-buf (get-buffer-create "*WL UUENCODE*"))
4587         orig-buf i k filename rc errmsg)
4588     (setq i 1)
4589     (setq k (length mlist))
4590     (set-buffer tmp-buf)
4591     (erase-buffer)
4592     (save-window-excursion
4593       (while mlist
4594         (set-buffer summary-buf)
4595         (wl-summary-jump-to-msg (car mlist))
4596         (wl-summary-redisplay)
4597         (set-buffer (setq orig-buf (wl-summary-get-original-buffer)))
4598         (goto-char (point-min))
4599         (cond ((= i 1) ; first
4600                (if (setq filename (wl-message-uu-substring
4601                                    orig-buf tmp-buf t
4602                                    (= i k)))
4603                    nil
4604                  (error "Can't find begin line")))
4605               ((< i k)
4606                (wl-message-uu-substring orig-buf tmp-buf))
4607               (t ; last
4608                (wl-message-uu-substring orig-buf tmp-buf nil t)))
4609         (setq i (1+ i))
4610         (setq mlist (cdr mlist)))
4611       (set-buffer tmp-buf)
4612       (message "Exec %s..." wl-prog-uudecode)
4613       (unwind-protect
4614           (let ((decode-dir wl-temporary-file-directory))
4615             (if (not wl-prog-uudecode-no-stdout-option)
4616                 (setq filename (read-file-name "Save to file: "
4617                                                (expand-file-name
4618                                                 (elmo-safe-filename filename)
4619                                                 wl-temporary-file-directory)))
4620               (setq decode-dir
4621                     (wl-read-directory-name "Save to directory: "
4622                                             wl-temporary-file-directory))
4623               (setq filename (expand-file-name filename decode-dir)))
4624             (if (file-exists-p filename)
4625                 (or (yes-or-no-p (format "File %s exists. Save anyway? "
4626                                          filename))
4627                     (error "")))
4628             (elmo-bind-directory
4629              decode-dir
4630              (setq rc
4631                    (as-binary-process
4632                     (apply 'call-process-region (point-min) (point-max)
4633                            wl-prog-uudecode t (current-buffer) nil
4634                            wl-prog-uudecode-arg))))
4635             (when (not (= 0 rc))
4636               (setq errmsg (buffer-substring (point-min)(point-max)))
4637               (error "Uudecode error: %s" errmsg))
4638             (if (not wl-prog-uudecode-no-stdout-option)
4639                 (let (file-name-handler-alist) ;; void jka-compr
4640                   (as-binary-output-file
4641                    (write-region (point-min) (point-max)
4642                                  filename nil 'no-msg))))
4643             (save-excursion
4644               (set-buffer summary-buf)
4645               (wl-summary-delete-all-temp-marks))
4646             (if (file-exists-p filename)
4647                 (message "Saved as %s" filename)))
4648         (kill-buffer tmp-buf)))))
4649
4650 ;; Someday
4651 ;; (defun wl-summary-drop-unsync ()
4652 ;;   "Drop all unsync messages."
4653 ;;   (interactive)
4654 ;;   (if (elmo-folder-pipe-p (wl-summary-buffer-folder-name))
4655 ;;       (error "You cannot drop unsync messages in this folder"))
4656 ;;   (if (or (not (interactive-p))
4657 ;;        (y-or-n-p "Drop all unsync messages? "))
4658 ;;       (let* ((folder-list (elmo-folder-get-primitive-folder-list
4659 ;;                         (wl-summary-buffer-folder-name)))
4660 ;;           (is-multi (elmo-multi-p (wl-summary-buffer-folder-name)))
4661 ;;           (sum 0)
4662 ;;           (multi-num 0)
4663 ;;           pair)
4664 ;;      (message "Dropping...")
4665 ;;      (while folder-list
4666 ;;        (setq pair (elmo-folder-message-numbers (car folder-list)))
4667 ;;        (when is-multi ;; dirty hack...
4668 ;;          (incf multi-num)
4669 ;;          (setcar pair (+ (* multi-num elmo-multi-divide-number)
4670 ;;                          (car pair))))
4671 ;;        (elmo-msgdb-set-number-alist
4672 ;;         (wl-summary-buffer-msgdb)
4673 ;;         (nconc
4674 ;;          (elmo-msgdb-get-number-alist (wl-summary-buffer-msgdb))
4675 ;;          (list (cons (car pair) nil))))
4676 ;;        (setq sum (+ sum (cdr pair)))
4677 ;;        (setq folder-list (cdr folder-list)))
4678 ;;      (wl-summary-set-message-modified)
4679 ;;      (wl-folder-set-folder-updated (wl-summary-buffer-folder-name)
4680 ;;                                    (list 0
4681 ;;                                          (+ wl-summary-buffer-unread-count
4682 ;;                                             wl-summary-buffer-new-count)
4683 ;;                                          sum))
4684 ;;      (message "Dropping...done"))))
4685
4686 (defun wl-summary-default-get-next-msg (msg)
4687   (or (wl-summary-next-message msg
4688                                (if wl-summary-move-direction-downward 'down
4689                                  'up)
4690                                nil)
4691       (cadr (memq msg (if wl-summary-move-direction-downward
4692                           wl-summary-buffer-number-list
4693                         (reverse wl-summary-buffer-number-list))))))
4694
4695 (defun wl-summary-save-current-message ()
4696   "Save current message for `wl-summary-yank-saved-message'."
4697   (interactive)
4698   (let ((number (wl-summary-message-number)))
4699     (setq wl-summary-buffer-saved-message number)
4700     (and number (message "No: %s is saved." number))))
4701
4702 (defun wl-summary-yank-saved-message ()
4703   "Set current message as a parent of the saved message."
4704   (interactive)
4705   (if wl-summary-buffer-saved-message
4706       (let ((number (wl-summary-message-number)))
4707         (if (eq wl-summary-buffer-saved-message number)
4708             (message "Cannot set itself as a parent.")
4709           (save-excursion
4710             (wl-thread-jump-to-msg wl-summary-buffer-saved-message)
4711             (wl-thread-set-parent number)
4712             (wl-summary-set-thread-modified))
4713           (setq  wl-summary-buffer-saved-message nil)))
4714     (message "There's no saved message.")))
4715
4716 (defun wl-summary-toggle-header-narrowing ()
4717   "Toggle message header narrowing."
4718   (interactive)
4719   (when wl-message-use-header-narrowing
4720     (save-selected-window
4721       (let* ((mbuf wl-message-buffer)
4722              (mwin (when mbuf (get-buffer-window mbuf)))
4723              (wpos (when mwin (window-start mwin))))
4724         (when mbuf
4725           (set-buffer mbuf)
4726           (wl-message-header-narrowing-toggle)
4727           (and wpos (set-window-start mwin wpos)))))))
4728
4729 (autoload 'elmo-folder-list-global-flag-messages "elmo-flag")
4730
4731 (require 'product)
4732 (product-provide (provide 'wl-summary) (require 'wl-version))
4733
4734 ;;; wl-summary.el ends here