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 (defvar elmo-global-flag-list)
  64
  65 (defvar wl-summary-buffer-name "Summary")
  66 (defvar wl-summary-mode-map nil)
  67 (defvar wl-current-summary-buffer nil)
  68
  69 (defvar wl-summary-buffer-elmo-folder nil)
  70
  71 (defmacro wl-summary-buffer-folder-name ()
  72   (` (and wl-summary-buffer-elmo-folder
  73           (elmo-folder-name-internal wl-summary-buffer-elmo-folder))))
  74
  75 (defvar wl-summary-buffer-disp-msg    nil)
  76 (defvar wl-summary-buffer-disp-folder nil)
  77 (defvar wl-summary-buffer-temp-mark-list nil)
  78 (defvar wl-summary-buffer-last-displayed-msg nil)
  79 (defvar wl-summary-buffer-current-msg nil)
  80 (defvar wl-summary-buffer-unread-count 0)
  81 (defvar wl-summary-buffer-new-count    0)
  82 (defvar wl-summary-buffer-answered-count 0)
  83 (defvar wl-summary-buffer-mime-charset  nil)
  84 (defvar wl-summary-buffer-weekday-name-lang  nil)
  85 (defvar wl-summary-buffer-thread-indent-set-alist  nil)
  86 (defvar wl-summary-buffer-view nil)
  87 (defvar wl-summary-buffer-message-modified nil)
  88 (defvar wl-summary-buffer-thread-modified nil)
  89
  90 (defvar wl-summary-buffer-number-column nil)
  91 (defvar wl-summary-buffer-temp-mark-column nil)
  92 (defvar wl-summary-buffer-persistent-mark-column nil)
  93
  94 (defvar wl-summary-buffer-unsync-mark-number-list nil)
  95
  96 (defvar wl-summary-buffer-persistent nil)
  97 (defvar wl-summary-buffer-thread-nodes nil)
  98 (defvar wl-summary-buffer-target-mark-list nil)
  99 (defvar wl-summary-buffer-prev-refile-destination nil)
 100 (defvar wl-summary-buffer-saved-message nil)
 101 (defvar wl-summary-buffer-prev-folder-function nil)
 102 (defvar wl-summary-buffer-next-folder-function nil)
 103 (defvar wl-summary-buffer-exit-function nil)
 104 (defvar wl-summary-buffer-next-message-function nil)
 105 (defvar wl-summary-buffer-window-scroll-functions nil)
 106 (defvar wl-summary-buffer-number-list nil)
 107 (defvar wl-summary-buffer-folder-name nil)
 108 (defvar wl-summary-buffer-line-formatter nil)
 109 (defvar wl-summary-buffer-line-format nil)
 110 (defvar wl-summary-buffer-mode-line-formatter nil)
 111 (defvar wl-summary-buffer-mode-line nil)
 112
 113 (defvar wl-thread-indent-level-internal nil)
 114 (defvar wl-thread-have-younger-brother-str-internal nil)
 115 (defvar wl-thread-youngest-child-str-internal nil)
 116 (defvar wl-thread-vertical-str-internal nil)
 117 (defvar wl-thread-horizontal-str-internal nil)
 118 (defvar wl-thread-space-str-internal nil)
 119 (defvar wl-summary-last-visited-folder nil)
 120 (defvar wl-read-folder-history nil)
 121 (defvar wl-summary-scored nil)
 122 (defvar wl-crosspost-alist-modified nil)
 123 (defvar wl-summary-alike-hashtb nil)
 124 (defvar wl-summary-search-buf-name " *wl-search-subject*")
 125 (defvar wl-summary-delayed-update nil)
 126 (defvar wl-summary-search-buf-folder-name nil)
 127
 128 (defvar wl-summary-get-petname-function 'wl-address-get-petname-1)
 129
 130 (defvar wl-summary-shell-command-last "")
 131
 132 (defvar wl-ps-preprint-hook nil)
 133 (defvar wl-ps-print-hook nil)
 134
 135 (defvar wl-thread-saved-entity-hashtb-internal nil)
 136
 137 (make-variable-buffer-local 'wl-summary-buffer-elmo-folder)
 138 (make-variable-buffer-local 'wl-summary-search-buf-folder-name)
 139 (make-variable-buffer-local 'wl-summary-buffer-disp-msg)
 140 (make-variable-buffer-local 'wl-summary-buffer-disp-folder)
 141 (make-variable-buffer-local 'wl-summary-buffer-target-mark-list)
 142 (make-variable-buffer-local 'wl-summary-buffer-temp-mark-list)
 143 (make-variable-buffer-local 'wl-summary-buffer-last-displayed-msg)
 144 (make-variable-buffer-local 'wl-summary-buffer-unread-count)
 145 (make-variable-buffer-local 'wl-summary-buffer-new-count)
 146 (make-variable-buffer-local 'wl-summary-buffer-answered-count)
 147 (make-variable-buffer-local 'wl-summary-buffer-mime-charset)
 148 (make-variable-buffer-local 'wl-summary-buffer-weekday-name-lang)
 149 (make-variable-buffer-local 'wl-summary-buffer-thread-indent-set)
 150 (make-variable-buffer-local 'wl-summary-buffer-view)
 151 (make-variable-buffer-local 'wl-summary-buffer-message-modified)
 152 (make-variable-buffer-local 'wl-summary-buffer-thread-modified)
 153 (make-variable-buffer-local 'wl-summary-buffer-number-column)
 154 (make-variable-buffer-local 'wl-summary-buffer-temp-mark-column)
 155 (make-variable-buffer-local 'wl-summary-buffer-persistent-mark-column)
 156 (make-variable-buffer-local 'wl-summary-buffer-unsync-mark-number-list)
 157 (make-variable-buffer-local 'wl-summary-buffer-persistent)
 158 (make-variable-buffer-local 'wl-summary-buffer-thread-nodes)
 159 (make-variable-buffer-local 'wl-summary-buffer-prev-refile-destination)
 160 (make-variable-buffer-local 'wl-summary-buffer-saved-message)
 161 (make-variable-buffer-local 'wl-summary-scored)
 162 (make-variable-buffer-local 'wl-summary-default-score)
 163 (make-variable-buffer-local 'wl-summary-move-direction-downward)
 164 (make-variable-buffer-local 'wl-summary-important-above)
 165 (make-variable-buffer-local 'wl-summary-target-above)
 166 (make-variable-buffer-local 'wl-summary-mark-below)
 167 (make-variable-buffer-local 'wl-summary-expunge-below)
 168 (make-variable-buffer-local 'wl-thread-indent-level-internal)
 169 (make-variable-buffer-local 'wl-thread-have-younger-brother-str-internal)
 170 (make-variable-buffer-local 'wl-thread-youngest-child-str-internal)
 171 (make-variable-buffer-local 'wl-thread-vertical-str-internal)
 172 (make-variable-buffer-local 'wl-thread-horizontal-str-internal)
 173 (make-variable-buffer-local 'wl-thread-space-str-internal)
 174 (make-variable-buffer-local 'wl-summary-buffer-prev-folder-function)
 175 (make-variable-buffer-local 'wl-summary-buffer-next-folder-function)
 176 (make-variable-buffer-local 'wl-summary-buffer-exit-function)
 177 (make-variable-buffer-local 'wl-summary-buffer-next-message-function)
 178 (make-variable-buffer-local 'wl-summary-buffer-window-scroll-functions)
 179 (make-variable-buffer-local 'wl-summary-buffer-number-list)
 180 (make-variable-buffer-local 'wl-summary-buffer-folder-name)
 181 (make-variable-buffer-local 'wl-summary-buffer-line-formatter)
 182 (make-variable-buffer-local 'wl-summary-buffer-line-format)
 183 (make-variable-buffer-local 'wl-summary-buffer-mode-line-formatter)
 184 (make-variable-buffer-local 'wl-summary-buffer-mode-line)
 185
 186 (defvar wl-datevec)
 187 (defvar wl-thr-indent-string)
 188 (defvar wl-thr-children-number)
 189 (defvar wl-thr-linked)
 190 (defvar wl-message-entity)
 191 (defvar wl-parent-message-entity)
 192 (defvar wl-temp-mark)
 193 (defvar wl-persistent-mark)
 194
 195 (defmacro wl-summary-sticky-buffer-name (name)
 196   (` (concat wl-summary-buffer-name ":" (, name))))
 197
 198 (defun wl-summary-default-subject (subject-string)
 199   (if (string-match "^[ \t]*\\[[^:]+[,: ][0-9]+\\][ \t]*" subject-string)
 200       (substring subject-string (match-end 0))
 201     subject-string))
 202
 203 (defun wl-summary-default-from (from)
 204   "Instance of `wl-summary-from-function'.
 205 Ordinarily returns the sender name. Returns recipient names if (1)
 206 summary's folder name matches with `wl-summary-showto-folder-regexp'
 207 and (2) sender address is yours.
 208
 209 See also variable `wl-use-petname'."
 210   (let (retval tos ng)
 211     (unless
 212         (and (eq major-mode 'wl-summary-mode)
 213              (stringp wl-summary-showto-folder-regexp)
 214              (string-match wl-summary-showto-folder-regexp
 215                            (wl-summary-buffer-folder-name))
 216              (wl-address-user-mail-address-p from)
 217              (cond
 218               ((and (setq tos (elmo-message-entity-field
 219                                wl-message-entity 'to t))
 220                     (not (string= "" tos)))
 221                (setq retval
 222                      (concat "To:"
 223                              (mapconcat
 224                               (function
 225                                (lambda (to)
 226                                  (eword-decode-string
 227                                   (if wl-use-petname
 228                                       (or
 229                                        (funcall
 230                                         wl-summary-get-petname-function to)
 231                                        (car
 232                                         (std11-extract-address-components to))
 233                                        to)
 234                                     to))))
 235                               (wl-parse-addresses tos)
 236                               ","))))
 237               ((setq ng (elmo-message-entity-field
 238                          wl-message-entity 'newsgroups))
 239                (setq retval (concat "Ng:" ng)))))
 240       (if wl-use-petname
 241           (setq retval (or (funcall wl-summary-get-petname-function from)
 242                            (car (std11-extract-address-components from))
 243                            from))
 244         (setq retval from)))
 245     retval))
 246
 247 (defun wl-summary-simple-from (string)
 248   (if wl-use-petname
 249       (or (funcall wl-summary-get-petname-function string)
 250           (car (std11-extract-address-components string))
 251           string)
 252     string))
 253
 254 (defvar wl-summary-sort-specs '(number date subject from list-info size))
 255 (defvar wl-summary-default-sort-spec 'date)
 256
 257 (defvar wl-summary-mode-menu-spec
 258   '("Summary"
 259     ["Read" wl-summary-read t]
 260     ["Prev page" wl-summary-prev-page t]
 261     ["Next page" wl-summary-next-page t]
 262     ["Top"       wl-summary-display-top t]
 263     ["Bottom"    wl-summary-display-bottom t]
 264     ["Prev"      wl-summary-prev t]
 265     ["Next"      wl-summary-next t]
 266     ["Up"        wl-summary-up t]
 267     ["Down"      wl-summary-down t]
 268     ["Parent message" wl-summary-jump-to-parent-message t]
 269     "----"
 270     ["Sync"            wl-summary-sync t]
 271     ["Execute"         wl-summary-exec t]
 272     ["Go to other folder" wl-summary-goto-folder t]
 273     ["Pick" wl-summary-pick t]
 274     ["Mark as read all" wl-summary-mark-as-read-all t]
 275     ["Unmark all"      wl-summary-unmark-all t]
 276     ["Toggle display message" wl-summary-toggle-disp-msg t]
 277     ["Display folder" wl-summary-toggle-disp-folder t]
 278     ["Toggle threading" wl-summary-toggle-thread t]
 279     ["Stick" wl-summary-stick t]
 280     ("Sort"
 281      ["By Number" wl-summary-sort-by-number t]
 282      ["By Size" wl-summary-sort-by-size t]
 283      ["By Date" wl-summary-sort-by-date t]
 284      ["By From" wl-summary-sort-by-from t]
 285      ["By Subject" wl-summary-sort-by-subject t]
 286      ["By List Info" wl-summary-sort-by-list-info t])
 287     "----"
 288     ("Message Operation"
 289      ["Mark as read"    wl-summary-mark-as-read t]
 290      ["Set flags"       wl-summary-set-flags t]
 291      ["Mark as unread"   wl-summary-mark-as-unread t]
 292      ["Mark as answered" wl-summary-mark-as-answered t]
 293      ["Set dispose mark" wl-summary-dispose t]
 294      ["Set refile mark" wl-summary-refile t]
 295      ["Set copy mark"   wl-summary-copy t]
 296      ["Set resend mark" wl-summary-resend t]
 297      ["Prefetch"        wl-summary-prefetch t]
 298      ["Set target mark" wl-summary-target-mark t]
 299      ["Unmark"          wl-summary-unmark t]
 300      ["Save"            wl-summary-save t]
 301      ["Cancel posted news" wl-summary-cancel-message t]
 302      ["Supersedes message" wl-summary-supersedes-message t]
 303      ["Resend bounced mail" wl-summary-resend-bounced-mail t]
 304      ["Enter the message" wl-summary-jump-to-current-message t]
 305      ["Pipe message" wl-summary-pipe-message t]
 306      ["Print message" wl-summary-print-message t])
 307     ("Thread Operation"
 308      ["Open or Close" wl-thread-open-close (eq wl-summary-buffer-view 'thread)]
 309      ["Open all"     wl-thread-open-all (eq wl-summary-buffer-view 'thread)]
 310      ["Close all"    wl-thread-close-all (eq wl-summary-buffer-view 'thread)]
 311      ["Mark as read" wl-thread-mark-as-read (eq wl-summary-buffer-view 'thread)]
 312      ["Set flags"       wl-thread-set-flags (eq wl-summary-buffer-view 'thread)]
 313      ["Mark as unread"          wl-thread-mark-as-unread (eq wl-summary-buffer-view 'thread)]
 314      ["Mark as answered"        wl-thread-mark-as-answered (eq wl-summary-buffer-view 'thread)]
 315      ["Set delete mark"  wl-thread-delete (eq wl-summary-buffer-view 'thread)]
 316      ["Set refile mark"  wl-thread-refile (eq wl-summary-buffer-view 'thread)]
 317      ["Set copy mark"    wl-thread-copy (eq wl-summary-buffer-view 'thread)]
 318      ["Prefetch"     wl-thread-prefetch (eq wl-summary-buffer-view 'thread)]
 319      ["Set target mark"        wl-thread-target-mark (eq wl-summary-buffer-view 'thread)]
 320      ["Unmark"      wl-thread-unmark (eq wl-summary-buffer-view 'thread)]
 321      ["Save"            wl-thread-save (eq wl-summary-buffer-view 'thread)]
 322      ["Execute"      wl-thread-exec (eq wl-summary-buffer-view 'thread)])
 323     ("Region Operation"
 324      ["Mark as read" wl-summary-mark-as-read-region t]
 325      ["Set flags" wl-summary-set-flags-region t]
 326      ["Mark as unread" wl-summary-mark-as-unread-region t]
 327      ["Mark as answered" wl-summary-mark-as-answered-region t]
 328      ["Set dispose mark" wl-summary-dispose-region t]
 329      ["Set refile mark" wl-summary-refile-region t]
 330      ["Set copy mark" wl-summary-copy-region t]
 331      ["Prefetch" wl-summary-prefetch-region t]
 332      ["Set target mark" wl-summary-target-mark-region t]
 333      ["Unmark" wl-summary-unmark-region t]
 334      ["Save" wl-summary-save-region t]
 335      ["Execute" wl-summary-exec-region t])
 336     ("Mark Operation"
 337      ["Mark as read" wl-summary-target-mark-mark-as-read t]
 338      ["Set flags" wl-summary-target-mark-set-flags t]
 339      ["Mark as unread" wl-summary-target-mark-mark-as-unread t]
 340      ["Set delete mark" wl-summary-target-mark-delete t]
 341      ["Set refile mark" wl-summary-target-mark-refile t]
 342      ["Set copy mark" wl-summary-target-mark-copy t]
 343      ["Prefetch" wl-summary-target-mark-prefetch t]
 344      ["Save" wl-summary-target-mark-save t]
 345      ["Reply with citation" wl-summary-target-mark-reply-with-citation t]
 346      ["Forward" wl-summary-target-mark-forward t]
 347      ["uudecode" wl-summary-target-mark-uudecode t])
 348     ("Score Operation"
 349      ["Switch current score file" wl-score-change-score-file t]
 350      ["Edit current score file" wl-score-edit-current-scores t]
 351      ["Edit score file" wl-score-edit-file t]
 352      ["Set mark below" wl-score-set-mark-below t]
 353      ["Set expunge below" wl-score-set-expunge-below t]
 354      ["Rescore buffer" wl-summary-rescore t]
 355      ["Increase score" wl-summary-increase-score t]
 356      ["Lower score" wl-summary-lower-score t])
 357     "----"
 358     ("Writing Messages"
 359      ["Write a message" wl-summary-write t]
 360      ["Write for current folder" wl-summary-write-current-folder t]
 361      ["Reply" wl-summary-reply t]
 362      ["Reply with citation" wl-summary-reply-with-citation t]
 363      ["Forward" wl-summary-forward t])
 364     "----"
 365     ["Toggle Plug Status" wl-toggle-plugged t]
 366     ["Change Plug Status" wl-plugged-change t]
 367     "----"
 368     ["Exit Current Folder" wl-summary-exit t]))
 369
 370 (if wl-on-xemacs
 371     (defun wl-summary-setup-mouse ()
 372       (define-key wl-summary-mode-map 'button4 'wl-summary-prev)
 373       (define-key wl-summary-mode-map 'button5 'wl-summary-next)
 374       (define-key wl-summary-mode-map [(shift button4)]
 375         'wl-summary-up)
 376       (define-key wl-summary-mode-map [(shift button5)]
 377         'wl-summary-down)
 378       (define-key wl-summary-mode-map 'button2 'wl-summary-click))
 379   (defun wl-summary-setup-mouse ()
 380     (define-key wl-summary-mode-map [mouse-4] 'wl-summary-prev)
 381     (define-key wl-summary-mode-map [mouse-5] 'wl-summary-next)
 382     (define-key wl-summary-mode-map [S-mouse-4] 'wl-summary-up)
 383     (define-key wl-summary-mode-map [S-mouse-5] 'wl-summary-down)
 384     ;; For Meadow2
 385     (define-key wl-summary-mode-map [mouse-wheel1]
 386       'wl-summary-wheel-dispatcher)
 387     (define-key wl-summary-mode-map [S-mouse-wheel1]
 388       'wl-summary-wheel-dispatcher)
 389     (define-key wl-summary-mode-map [mouse-2] 'wl-summary-click)))
 390
 391 (if wl-summary-mode-map
 392     ()
 393   (setq wl-summary-mode-map (make-sparse-keymap))
 394   (define-key wl-summary-mode-map " "    'wl-summary-read)
 395   (define-key wl-summary-mode-map "."    'wl-summary-redisplay)
 396   (define-key wl-summary-mode-map "<"    'wl-summary-display-top)
 397   (define-key wl-summary-mode-map ">"    'wl-summary-display-bottom)
 398   (define-key wl-summary-mode-map "\177" 'wl-summary-prev-page)
 399   (define-key wl-summary-mode-map [backspace] 'wl-summary-prev-page)
 400   (define-key wl-summary-mode-map "\r"   'wl-summary-next-line-content)
 401   (define-key wl-summary-mode-map "\C-m" 'wl-summary-next-line-content)
 402   (define-key wl-summary-mode-map "/"    'wl-thread-open-close)
 403   (define-key wl-summary-mode-map "["    'wl-thread-open-all)
 404   (define-key wl-summary-mode-map "]"    'wl-thread-close-all)
 405   (define-key wl-summary-mode-map "-"    'wl-summary-prev-line-content)
 406   (define-key wl-summary-mode-map "\e\r" 'wl-summary-prev-line-content)
 407   (define-key wl-summary-mode-map "g"    'wl-summary-goto-folder)
 408   (define-key wl-summary-mode-map "G"    'wl-summary-goto-folder-sticky)
 409   (define-key wl-summary-mode-map "c"    'wl-summary-mark-as-read-all)
 410
 411   (define-key wl-summary-mode-map "a"    'wl-summary-reply)
 412   (define-key wl-summary-mode-map "A"    'wl-summary-reply-with-citation)
 413   (define-key wl-summary-mode-map "C"    'wl-summary-cancel-message)
 414   (define-key wl-summary-mode-map "E"    'wl-summary-reedit)
 415   (define-key wl-summary-mode-map "\eE"  'wl-summary-resend-bounced-mail)
 416   (define-key wl-summary-mode-map "f"    'wl-summary-forward)
 417   (define-key wl-summary-mode-map "$"    'wl-summary-mark-as-important)
 418   (define-key wl-summary-mode-map "F"    'wl-summary-set-flags)
 419   (define-key wl-summary-mode-map "&"    'wl-summary-mark-as-answered)
 420   (define-key wl-summary-mode-map "@"    'wl-summary-edit-addresses)
 421
 422   (define-key wl-summary-mode-map "y"    'wl-summary-save)
 423   (define-key wl-summary-mode-map "n"    'wl-summary-next)
 424   (define-key wl-summary-mode-map "p"    'wl-summary-prev)
 425   (define-key wl-summary-mode-map "N"    'wl-summary-down)
 426   (define-key wl-summary-mode-map "P"    'wl-summary-up)
 427   (define-key wl-summary-mode-map "w"    'wl-summary-write)
 428   (define-key wl-summary-mode-map "W"    'wl-summary-write-current-folder)
 429   (define-key wl-summary-mode-map "e"     'wl-summary-save)
 430   (define-key wl-summary-mode-map "\C-c\C-o" 'wl-jump-to-draft-buffer)
 431   (define-key wl-summary-mode-map "\C-c\C-a" 'wl-addrmgr)
 432   (define-key wl-summary-mode-map "\C-c\C-p" 'wl-summary-previous-buffer)
 433   (define-key wl-summary-mode-map "\C-c\C-n" 'wl-summary-next-buffer)
 434   (define-key wl-summary-mode-map "H"    'wl-summary-redisplay-all-header)
 435   (define-key wl-summary-mode-map "M"    'wl-summary-redisplay-no-mime)
 436   (define-key wl-summary-mode-map "B"    'wl-summary-burst)
 437   (define-key wl-summary-mode-map "Z"    'wl-status-update)
 438   (define-key wl-summary-mode-map "#"    'wl-summary-print-message)
 439   (define-key wl-summary-mode-map "|"    'wl-summary-pipe-message)
 440   (define-key wl-summary-mode-map "z"    'wl-summary-suspend)
 441   (define-key wl-summary-mode-map "q"    'wl-summary-exit)
 442   (define-key wl-summary-mode-map "Q"    'wl-summary-force-exit)
 443
 444   (define-key wl-summary-mode-map "j"    'wl-summary-jump-to-current-message)
 445   (define-key wl-summary-mode-map "J"    'wl-thread-jump-to-msg)
 446   (define-key wl-summary-mode-map "I"    'wl-summary-incorporate)
 447   (define-key wl-summary-mode-map "\M-j" 'wl-summary-jump-to-msg-by-message-id)
 448   (define-key wl-summary-mode-map "^"    'wl-summary-jump-to-parent-message)
 449   (define-key wl-summary-mode-map "!"    'wl-summary-mark-as-unread)
 450
 451   (define-key wl-summary-mode-map "s"    'wl-summary-sync)
 452   (define-key wl-summary-mode-map "S"    'wl-summary-sort)
 453   (define-key wl-summary-mode-map "\M-s"    'wl-summary-stick)
 454   (define-key wl-summary-mode-map "T"    'wl-summary-toggle-thread)
 455
 456   (define-key wl-summary-mode-map "l"    'wl-summary-toggle-disp-folder)
 457   (define-key wl-summary-mode-map "v"    'wl-summary-toggle-disp-msg)
 458   (define-key wl-summary-mode-map "V"    'wl-summary-virtual)
 459
 460   (define-key wl-summary-mode-map "\C-i"  'wl-summary-goto-last-displayed-msg)
 461   (define-key wl-summary-mode-map "?"    'wl-summary-pick)
 462   (define-key wl-summary-mode-map "\ee"  'wl-summary-expire)
 463
 464   ;; copy & paste.
 465   (define-key wl-summary-mode-map "\ew"  'wl-summary-save-current-message)
 466   (define-key wl-summary-mode-map "\C-y"  'wl-summary-yank-saved-message)
 467
 468   ;; line commands
 469   (define-key wl-summary-mode-map "R"    'wl-summary-mark-as-read)
 470   (define-key wl-summary-mode-map "i"    'wl-summary-prefetch)
 471   (define-key wl-summary-mode-map "x"    'wl-summary-exec)
 472   (define-key wl-summary-mode-map "*"    'wl-summary-target-mark)
 473   (define-key wl-summary-mode-map "o"    'wl-summary-refile)
 474   (define-key wl-summary-mode-map "O"    'wl-summary-copy)
 475   (define-key wl-summary-mode-map "\M-o" 'wl-summary-refile-prev-destination)
 476   (define-key wl-summary-mode-map "\C-o" 'wl-summary-auto-refile)
 477   (define-key wl-summary-mode-map "d"    'wl-summary-dispose)
 478   (define-key wl-summary-mode-map "u"    'wl-summary-unmark)
 479   (define-key wl-summary-mode-map "U"    'wl-summary-unmark-all)
 480   (define-key wl-summary-mode-map "D"    'wl-summary-delete)
 481   (define-key wl-summary-mode-map "~"    'wl-summary-resend)
 482
 483   ;; thread commands
 484   (define-key wl-summary-mode-map "t"   (make-sparse-keymap))
 485   (define-key wl-summary-mode-map "tR" 'wl-thread-mark-as-read)
 486   (define-key wl-summary-mode-map "ti" 'wl-thread-prefetch)
 487   (define-key wl-summary-mode-map "tx" 'wl-thread-exec)
 488   (define-key wl-summary-mode-map "t*" 'wl-thread-target-mark)
 489   (define-key wl-summary-mode-map "to" 'wl-thread-refile)
 490   (define-key wl-summary-mode-map "tO" 'wl-thread-copy)
 491   (define-key wl-summary-mode-map "t\M-o" 'wl-thread-refile-prev-destination)
 492   (define-key wl-summary-mode-map "td" 'wl-thread-dispose)
 493   (define-key wl-summary-mode-map "tD" 'wl-thread-delete)
 494   (define-key wl-summary-mode-map "t~" 'wl-thread-resend)
 495   (define-key wl-summary-mode-map "tu" 'wl-thread-unmark)
 496   (define-key wl-summary-mode-map "t!" 'wl-thread-mark-as-unread)
 497   (define-key wl-summary-mode-map "t$" 'wl-thread-mark-as-important)
 498   (define-key wl-summary-mode-map "tF" 'wl-thread-set-flags)
 499   (define-key wl-summary-mode-map "t&" 'wl-thread-mark-as-answered)
 500   (define-key wl-summary-mode-map "ty" 'wl-thread-save)
 501   (define-key wl-summary-mode-map "ts" 'wl-thread-set-parent)
 502
 503   ;; target-mark commands
 504   (define-key wl-summary-mode-map "m"     (make-sparse-keymap))
 505   (define-key wl-summary-mode-map "mi"   'wl-summary-target-mark-prefetch)
 506   (define-key wl-summary-mode-map "mo"   'wl-summary-target-mark-refile)
 507   (define-key wl-summary-mode-map "mO"   'wl-summary-target-mark-copy)
 508   (define-key wl-summary-mode-map "m\M-o" 'wl-summary-target-mark-refile-prev-destination)
 509   (define-key wl-summary-mode-map "md"   'wl-summary-target-mark-dispose)
 510   (define-key wl-summary-mode-map "mD"   'wl-summary-target-mark-delete)
 511   (define-key wl-summary-mode-map "m~"   'wl-summary-target-mark-resend)
 512
 513   (define-key wl-summary-mode-map "mu"   'wl-summary-delete-all-temp-marks)
 514
 515   (define-key wl-summary-mode-map "my"   'wl-summary-target-mark-save)
 516   (define-key wl-summary-mode-map "mR"   'wl-summary-target-mark-mark-as-read)
 517   (define-key wl-summary-mode-map "m!"   'wl-summary-target-mark-mark-as-unread)
 518   (define-key wl-summary-mode-map "m&"   'wl-summary-target-mark-mark-as-answered)
 519   (define-key wl-summary-mode-map "m$"   'wl-summary-target-mark-mark-as-important)
 520   (define-key wl-summary-mode-map "mF"   'wl-summary-target-mark-set-flags)
 521   (define-key wl-summary-mode-map "mU"   'wl-summary-target-mark-uudecode)
 522   (define-key wl-summary-mode-map "ma"   'wl-summary-target-mark-all)
 523   (define-key wl-summary-mode-map "mt"   'wl-summary-target-mark-thread)
 524   (define-key wl-summary-mode-map "mA"   'wl-summary-target-mark-reply-with-citation)
 525   (define-key wl-summary-mode-map "mf"   'wl-summary-target-mark-forward)
 526   (define-key wl-summary-mode-map "m?"   'wl-summary-target-mark-pick)
 527   (define-key wl-summary-mode-map "m#"   'wl-summary-target-mark-print)
 528   (define-key wl-summary-mode-map "m|"   'wl-summary-target-mark-pipe)
 529
 530   ;; region commands
 531   (define-key wl-summary-mode-map "r"    (make-sparse-keymap))
 532   (define-key wl-summary-mode-map "rR"   'wl-summary-mark-as-read-region)
 533   (define-key wl-summary-mode-map "ri"   'wl-summary-prefetch-region)
 534   (define-key wl-summary-mode-map "rx"   'wl-summary-exec-region)
 535   (define-key wl-summary-mode-map "mr"   'wl-summary-target-mark-region)
 536   (define-key wl-summary-mode-map "r*"   'wl-summary-target-mark-region)
 537   (define-key wl-summary-mode-map "ro"   'wl-summary-refile-region)
 538   (define-key wl-summary-mode-map "rO"   'wl-summary-copy-region)
 539   (define-key wl-summary-mode-map "r\M-o" 'wl-summary-refile-prev-destination-region)
 540   (define-key wl-summary-mode-map "rd"   'wl-summary-dispose-region)
 541   (define-key wl-summary-mode-map "rD"   'wl-summary-delete-region)
 542   (define-key wl-summary-mode-map "r~"   'wl-summary-resend-region)
 543   (define-key wl-summary-mode-map "ru"   'wl-summary-unmark-region)
 544   (define-key wl-summary-mode-map "r!"   'wl-summary-mark-as-unread-region)
 545   (define-key wl-summary-mode-map "r$"   'wl-summary-mark-as-important-region)
 546   (define-key wl-summary-mode-map "rF"   'wl-summary-set-flags-region)
 547   (define-key wl-summary-mode-map "r&"   'wl-summary-mark-as-answered-region)
 548   (define-key wl-summary-mode-map "ry"   'wl-summary-save-region)
 549
 550   ;; score commands
 551   (define-key wl-summary-mode-map "K"    'wl-summary-increase-score)
 552   (define-key wl-summary-mode-map "L"    'wl-summary-lower-score)
 553   (define-key wl-summary-mode-map "h"    (make-sparse-keymap))
 554   (define-key wl-summary-mode-map "hR"   'wl-summary-rescore)
 555   (define-key wl-summary-mode-map "hc"   'wl-score-change-score-file)
 556   (define-key wl-summary-mode-map "he"   'wl-score-edit-current-scores)
 557   (define-key wl-summary-mode-map "hf"   'wl-score-edit-file)
 558   (define-key wl-summary-mode-map "hF"   'wl-score-flush-cache)
 559   (define-key wl-summary-mode-map "hm"   'wl-score-set-mark-below)
 560   (define-key wl-summary-mode-map "hx"   'wl-score-set-expunge-below)
 561
 562   ;; misc
 563   (define-key wl-summary-mode-map "\C-c\C-f" 'wl-summary-toggle-header-narrowing)
 564   (define-key wl-summary-mode-map "\M-t" 'wl-toggle-plugged)
 565   (define-key wl-summary-mode-map "\C-t" 'wl-plugged-change)
 566   ;;
 567   (define-key wl-summary-mode-map "\C-x\C-s" 'wl-summary-save-status)
 568   (wl-summary-setup-mouse)
 569   (easy-menu-define
 570    wl-summary-mode-menu
 571    wl-summary-mode-map
 572    "Menu used in Summary mode."
 573    wl-summary-mode-menu-spec))
 574
 575 (defsubst wl-summary-message-visible-p (number)
 576   "Return non-nil if the message with NUMBER is visible."
 577   (or (eq wl-summary-buffer-view 'sequence)
 578       (not (wl-thread-entity-parent-invisible-p
 579             (wl-thread-get-entity number)))))
 580
 581 (defun wl-summary-update-mark-and-highlight-window (&optional win beg)
 582   "A function to be called as window-scroll-functions."
 583   (with-current-buffer (window-buffer win)
 584     (when (eq major-mode 'wl-summary-mode)
 585       (let ((beg (or beg (window-start win)))
 586             (end (condition-case nil
 587                      (window-end win t) ; old emacsen doesn't support 2nd arg.
 588                    (error (window-end win))))
 589             number flags)
 590         (save-excursion
 591           (goto-char beg)
 592           (while (and (< (point) end) (not (eobp)))
 593             (when (null (get-text-property (point) 'face))
 594               (setq number (wl-summary-message-number)
 595                     flags (elmo-message-flags wl-summary-buffer-elmo-folder
 596                                               number))
 597               (let (wl-summary-highlight)
 598                 (wl-summary-update-persistent-mark number flags))
 599               (if wl-summary-highlight
 600                   (wl-highlight-summary-current-line number flags)))
 601             (forward-line 1)))))
 602     (set-buffer-modified-p nil)))
 603
 604 (defun wl-summary-window-scroll-functions ()
 605   (cond ((and wl-summary-lazy-highlight
 606               wl-summary-lazy-update-mark)
 607          (list 'wl-summary-update-mark-and-highlight-window))
 608         (wl-summary-lazy-highlight
 609          (list 'wl-highlight-summary-window))
 610         (wl-summary-lazy-update-mark
 611          (list 'wl-summary-update-mark-window))))
 612
 613 (defun wl-status-update ()
 614   (interactive)
 615   (wl-address-init))
 616
 617 (defun wl-summary-display-top ()
 618   (interactive)
 619   (goto-char (point-min))
 620   (run-hooks 'wl-summary-buffer-window-scroll-functions)
 621   (if wl-summary-buffer-disp-msg
 622       (wl-summary-redisplay)))
 623
 624 (defun wl-summary-display-bottom ()
 625   (interactive)
 626   (goto-char (point-max))
 627   (forward-line -1)
 628   (run-hooks 'wl-summary-buffer-window-scroll-functions)
 629   (if wl-summary-buffer-disp-msg
 630       (wl-summary-redisplay)))
 631
 632 (defun wl-summary-count-unread ()
 633   (let ((lst (elmo-folder-count-flags wl-summary-buffer-elmo-folder)))
 634     (if (eq major-mode 'wl-summary-mode)
 635         (setq wl-summary-buffer-new-count (car lst)
 636               wl-summary-buffer-unread-count (nth 1 lst)
 637               wl-summary-buffer-answered-count (nth 2 lst)))
 638     lst))
 639
 640 (defun wl-summary-message-string (&optional use-cache)
 641   "Return full body string of current message.
 642 If optional USE-CACHE is non-nil, use cache if exists."
 643   (let ((number (wl-summary-message-number))
 644         (folder wl-summary-buffer-elmo-folder))
 645     (if (null number)
 646         (message "No message.")
 647       (elmo-set-work-buf
 648        (elmo-message-fetch folder
 649                            number
 650                            (elmo-make-fetch-strategy
 651                             'entire
 652                             use-cache ; use cache
 653                             nil ; save cache (should `t'?)
 654                             (and
 655                              use-cache
 656                              (elmo-file-cache-get-path
 657                               (elmo-message-field folder number 'message-id))))
 658                            nil
 659                            (current-buffer)
 660                            'unread)
 661        (buffer-string)))))
 662
 663 (defun wl-summary-reedit (&optional arg)
 664   "Re-edit current message.
 665 If ARG is non-nil, Supersedes message"
 666   (interactive "P")
 667   (wl-summary-toggle-disp-msg 'off)
 668   (cond
 669    ((not (wl-summary-message-number))
 670     (message "No message."))
 671    (arg
 672     (wl-summary-supersedes-message))
 673    ((string= (wl-summary-buffer-folder-name) wl-draft-folder)
 674     (wl-draft-reedit (wl-summary-message-number))
 675     (if (wl-message-news-p)
 676         (mail-position-on-field "Newsgroups")
 677       (mail-position-on-field "To")))
 678    (t
 679     (wl-draft-edit-string (wl-summary-message-string)))))
 680
 681 (defun wl-summary-resend-bounced-mail ()
 682   "Re-mail the current message.
 683 This only makes sense if the current message is a bounce message which
 684 contains some mail you have written but has been bounced back to
 685 you."
 686   (interactive)
 687   (wl-summary-toggle-disp-msg 'off)
 688   (save-excursion
 689     (wl-summary-set-message-buffer-or-redisplay)
 690     (set-buffer (wl-message-get-original-buffer))
 691     (goto-char (point-min))
 692     (let ((case-fold-search nil))
 693       (cond
 694        ((and
 695          (re-search-forward
 696           (concat "^\\($\\|[Cc]ontent-[Tt]ype:[ \t]+multipart/\\(report\\|mixed\\)\\)") nil t)
 697          (not (bolp))
 698          (re-search-forward "boundary=\"\\([^\"]+\\)\"" nil t))
 699         (let ((boundary (buffer-substring (match-beginning 1) (match-end 1)))
 700               start)
 701           (cond
 702            ((and (setq start (re-search-forward
 703                               (concat "^--" boundary "\n"
 704                                       "\\([Cc]ontent-[Dd]escription:.*\n\\)?"
 705                                       "[Cc]ontent-[Tt]ype:[ \t]+"
 706                                       "\\(message/rfc822\\|text/rfc822-headers\\).*\n"
 707                                       "\\(.+\n\\)*\n") nil t))
 708                  (re-search-forward
 709                   (concat "\n\\(--" boundary "\\)--\n") nil t))
 710             (wl-draft-edit-string (buffer-substring start (match-beginning 1))))
 711            (t
 712             (message "Seems no message/rfc822 part.")))))
 713        ((let ((case-fold-search t))
 714           (re-search-forward wl-rejected-letter-start nil t))
 715         (skip-chars-forward " \t\n")
 716         (wl-draft-edit-string (buffer-substring (point) (point-max))))
 717        (t
 718         (message "Does not appear to be a rejected letter."))))))
 719
 720 (defun wl-summary-detect-mark-position ()
 721   (let ((column wl-summary-buffer-number-column)
 722         (formatter wl-summary-buffer-line-formatter)
 723         (dummy-temp (char-to-string 200))
 724         ;; bind only for the check.
 725         (wl-summary-new-uncached-mark (char-to-string 201))
 726         (wl-summary-persistent-mark-priority-list '(new))     ; ditto.
 727         (lang wl-summary-buffer-weekday-name-lang)
 728         wl-summary-highlight
 729         temp persistent)
 730     (with-temp-buffer
 731       (setq wl-summary-buffer-number-column column
 732             wl-summary-buffer-line-formatter formatter
 733             wl-summary-buffer-weekday-name-lang lang)
 734       (insert
 735        (wl-summary-create-line
 736         (elmo-msgdb-make-message-entity
 737          (luna-make-entity 'modb-entity-handler)
 738          :number 10000
 739          :from "foo"
 740          :subject "bar"
 741          :size 100)
 742         nil
 743         dummy-temp
 744         '(new)
 745         nil))
 746       (goto-char (point-min))
 747       (setq temp (save-excursion
 748                    (when (search-forward dummy-temp nil t)
 749                      (current-column)))
 750             persistent
 751             (save-excursion
 752               (when (search-forward wl-summary-new-uncached-mark nil t)
 753                 (current-column)))))
 754     (setq wl-summary-buffer-temp-mark-column temp
 755           wl-summary-buffer-persistent-mark-column persistent)))
 756
 757 (defun wl-summary-buffer-set-folder (folder)
 758   (if (stringp folder)
 759       (setq folder (wl-folder-get-elmo-folder folder)))
 760   (setq wl-summary-buffer-elmo-folder folder)
 761   (make-local-variable 'wl-message-buffer)
 762   (setq wl-summary-buffer-mime-charset (or (wl-get-assoc-list-value
 763                                             wl-folder-mime-charset-alist
 764                                             (elmo-folder-name-internal folder))
 765                                            wl-mime-charset))
 766   (setq wl-summary-buffer-weekday-name-lang
 767         (or (wl-get-assoc-list-value
 768              wl-folder-weekday-name-lang-alist
 769              (elmo-folder-name-internal folder))
 770             wl-summary-weekday-name-lang))
 771   (setq wl-summary-buffer-thread-indent-set
 772         (wl-get-assoc-list-value
 773          wl-folder-thread-indent-set-alist
 774          (elmo-folder-name-internal folder)))
 775   (setq wl-summary-buffer-number-column
 776         (or (wl-get-assoc-list-value wl-summary-number-column-alist
 777                                      (wl-summary-buffer-folder-name))
 778             wl-summary-default-number-column))
 779   (wl-line-formatter-setup
 780    wl-summary-buffer-line-formatter
 781    (setq wl-summary-buffer-line-format
 782          (or (wl-get-assoc-list-value
 783               wl-folder-summary-line-format-alist
 784               (elmo-folder-name-internal folder))
 785              wl-summary-line-format))
 786    wl-summary-line-format-spec-alist)
 787   (wl-line-formatter-setup
 788    wl-summary-buffer-mode-line-formatter
 789    wl-summary-mode-line-format
 790    wl-summary-mode-line-format-spec-alist)
 791   (setq wl-summary-buffer-persistent
 792         (wl-folder-persistent-p (elmo-folder-name-internal folder)))
 793   (elmo-folder-set-persistent-internal folder wl-summary-buffer-persistent)
 794   ;; process duplicates.
 795   (elmo-folder-set-process-duplicates-internal
 796    folder (cdr (elmo-string-matched-assoc
 797                 (elmo-folder-name-internal folder)
 798                 wl-folder-process-duplicates-alist)))
 799   (setq
 800    wl-thread-indent-level-internal
 801    (or (nth 0 wl-summary-buffer-thread-indent-set)
 802        wl-thread-indent-level)
 803    wl-thread-have-younger-brother-str-internal
 804    (or (nth 1 wl-summary-buffer-thread-indent-set)
 805        wl-thread-have-younger-brother-str)
 806    wl-thread-youngest-child-str-internal
 807    (or (nth 2 wl-summary-buffer-thread-indent-set)
 808        wl-thread-youngest-child-str)
 809    wl-thread-vertical-str-internal
 810    (or (nth 3 wl-summary-buffer-thread-indent-set)
 811        wl-thread-vertical-str)
 812    wl-thread-horizontal-str-internal
 813    (or (nth 4 wl-summary-buffer-thread-indent-set)
 814        wl-thread-horizontal-str)
 815    wl-thread-space-str-internal
 816    (or (nth 5 wl-summary-buffer-thread-indent-set)
 817        wl-thread-space-str))
 818   (run-hooks 'wl-summary-buffer-set-folder-hook))
 819
 820 (defun wl-summary-mode ()
 821   "Major mode for reading threaded messages.
 822 See Info under Wanderlust for full documentation.
 823
 824 Special commands:
 825 \\{wl-summary-mode-map}
 826
 827 Entering Folder mode calls the value of `wl-summary-mode-hook'."
 828   (interactive)
 829   (unless (interactive-p) (kill-all-local-variables))
 830   (setq major-mode 'wl-summary-mode)
 831   (setq mode-name "Summary")
 832   (use-local-map wl-summary-mode-map)
 833 ;;;(setq default-directory (or wl-tmp-dir (expand-file-name "~/")))
 834   (setq buffer-read-only t)
 835   (setq truncate-lines t)
 836 ;;;(make-local-variable 'tab-width)
 837 ;;;(setq tab-width 1)
 838   (buffer-disable-undo (current-buffer))
 839   (setq selective-display t
 840         selective-display-ellipses nil)
 841   (wl-mode-line-buffer-identification '(wl-summary-buffer-mode-line))
 842   (easy-menu-add wl-summary-mode-menu)
 843   (setq wl-summary-buffer-window-scroll-functions
 844         (wl-summary-window-scroll-functions))
 845   (when wl-summary-buffer-window-scroll-functions
 846     (let ((hook (if wl-on-xemacs 'pre-idle-hook 'window-scroll-functions)))
 847       (make-local-hook hook)
 848       (dolist (function wl-summary-buffer-window-scroll-functions)
 849         (add-hook hook function nil t))))
 850   ;; This hook may contain the function `wl-setup-summary' for reasons
 851   ;; of system internal to accord facilities for the Emacs variants.
 852   (run-hooks 'wl-summary-mode-hook))
 853
 854 ;;;
 855 (defun wl-summary-overview-entity-compare-by-size (x y)
 856    "Compare entity X and Y by size."
 857    (< (elmo-message-entity-field x 'size)
 858       (elmo-message-entity-field y 'size)))
 859
 860
 861 (defun wl-summary-overview-entity-compare-by-date (x y)
 862   "Compare entity X and Y by date."
 863   (condition-case nil
 864       (string<
 865        (timezone-make-date-sortable
 866         (elmo-message-entity-field x 'date))
 867        (timezone-make-date-sortable
 868         (elmo-message-entity-field y 'date)))
 869     (error))) ;; ignore error.
 870
 871 (defun wl-summary-overview-entity-compare-by-number (x y)
 872    "Compare entity X and Y by number."
 873   (<
 874    (elmo-message-entity-number x)
 875    (elmo-message-entity-number y)))
 876
 877 (defun wl-summary-overview-entity-compare-by-from (x y)
 878   "Compare entity X and Y by from."
 879   (string<
 880    (wl-address-header-extract-address
 881     (or (elmo-message-entity-field x 'from t)
 882         wl-summary-no-from-message))
 883    (wl-address-header-extract-address
 884     (or (elmo-message-entity-field y 'from t)
 885         wl-summary-no-from-message))))
 886
 887 (defun wl-summary-overview-entity-compare-by-subject (x y)
 888   "Compare entity X and Y by subject."
 889   (string< (elmo-message-entity-field x 'subject)
 890            (elmo-message-entity-field y 'subject)))
 891
 892 (defun wl-summary-get-list-info (entity)
 893   "Returns (\"ML-name\" . ML-count) of ENTITY."
 894   (let (sequence ml-name ml-count subject return-path delivered-to mailing-list)
 895     (setq sequence (elmo-message-entity-field entity 'x-sequence)
 896           ml-name (or (elmo-message-entity-field entity 'x-ml-name)
 897                       (and sequence
 898                            (car (split-string sequence " "))))
 899           ml-count (or (elmo-message-entity-field entity 'x-mail-count)
 900                        (elmo-message-entity-field entity 'x-ml-count)
 901                        (and sequence
 902                             (cadr (split-string sequence " ")))))
 903     (and (setq subject (elmo-message-entity-field entity 'subject t))
 904          (setq subject (elmo-delete-char ?\n subject))
 905          (string-match "^\\s(\\(\\S)+\\)[ :]\\([0-9]+\\)\\s)[ \t]*" subject)
 906          (progn
 907            (or ml-name (setq ml-name (match-string 1 subject)))
 908            (or ml-count (setq ml-count (match-string 2 subject)))))
 909     (and (setq return-path
 910                (elmo-message-entity-field entity 'return-path))
 911          (string-match "^<\\([^@>]+\\)-return-\\([0-9]+\\)-" return-path)
 912          (progn
 913            (or ml-name (setq ml-name (match-string 1 return-path)))
 914            (or ml-count (setq ml-count (match-string 2 return-path)))))
 915     (and (setq delivered-to
 916                (elmo-message-entity-field entity 'delivered-to))
 917          (string-match "^mailing list \\([^@]+\\)@" delivered-to)
 918          (or ml-name (setq ml-name (match-string 1 delivered-to))))
 919     (and (setq mailing-list
 920                (elmo-message-entity-field entity 'mailing-list))
 921          ;; *-help@, *-owner@, etc.
 922          (string-match "\\(^\\|; \\)contact \\([^@]+\\)-[^-@]+@" mailing-list)
 923          (or ml-name (setq ml-name (match-string 2 mailing-list))))
 924     (cons (and ml-name (car (split-string ml-name " ")))
 925           (and ml-count (string-to-int ml-count)))))
 926
 927 (defun wl-summary-overview-entity-compare-by-list-info (x y)
 928   "Compare entity X and Y by mailing-list info."
 929   (let* ((list-info-x (wl-summary-get-list-info x))
 930          (list-info-y (wl-summary-get-list-info y)))
 931     (if (equal (car list-info-x) (car list-info-y))
 932         (if (equal (cdr list-info-x) (cdr list-info-y))
 933             (wl-summary-overview-entity-compare-by-date x y)
 934           (< (or (cdr list-info-x) 0)
 935              (or (cdr list-info-y) 0)))
 936       (string< (or (car list-info-x) "")
 937                (or (car list-info-y) "")))))
 938
 939 (defun wl-summary-sort-by-date ()
 940   (interactive)
 941   (wl-summary-rescan "date"))
 942 (defun wl-summary-sort-by-number ()
 943   (interactive)
 944   (wl-summary-rescan "number"))
 945 (defun wl-summary-sort-by-subject ()
 946   (interactive)
 947   (wl-summary-rescan "subject"))
 948 (defun wl-summary-sort-by-from ()
 949   (interactive)
 950   (wl-summary-rescan "from"))
 951 (defun wl-summary-sort-by-list-info ()
 952   (interactive)
 953   (wl-summary-rescan "list-info"))
 954
 955 (defun wl-summary-rescan (&optional sort-by disable-killed disable-thread)
 956   "Rescan current folder without updating."
 957   (interactive)
 958   (let ((elmo-mime-charset wl-summary-buffer-mime-charset)
 959         i percent num
 960         gc-message entity
 961         curp
 962         (inhibit-read-only t)
 963         (buffer-read-only nil)
 964         (numbers (elmo-folder-list-messages wl-summary-buffer-elmo-folder
 965                                             (not disable-killed) t)) ; in-msgdb
 966         (wl-thread-saved-entity-hashtb-internal (and (not disable-thread)
 967                                                      wl-thread-entity-hashtb))
 968         (wl-summary-search-parent-by-subject-regexp
 969          (and disable-thread wl-summary-search-parent-by-subject-regexp))
 970         (wl-summary-divide-thread-when-subject-changed
 971          (and disable-thread wl-summary-divide-thread-when-subject-changed))
 972         expunged)
 973     (erase-buffer)
 974     (message "Re-scanning...")
 975     (setq i 0)
 976     (when sort-by
 977       (message "Sorting by %s..." sort-by)
 978       (setq numbers
 979             (sort numbers
 980                   (lambda (x y)
 981                     (funcall
 982                      (intern (format "wl-summary-overview-entity-compare-by-%s"
 983                                      sort-by))
 984                      (elmo-message-entity wl-summary-buffer-elmo-folder x)
 985                      (elmo-message-entity wl-summary-buffer-elmo-folder y)))))
 986       (message "Sorting by %s...done" sort-by))
 987     (setq num (length numbers))
 988     (setq wl-thread-entity-hashtb (elmo-make-hash (* num 2))
 989           wl-thread-entity-list nil
 990           wl-thread-entities nil
 991           wl-summary-scored nil
 992           wl-summary-buffer-number-list nil
 993           wl-summary-buffer-unsync-mark-number-list nil
 994           wl-summary-buffer-target-mark-list nil
 995           wl-summary-buffer-temp-mark-list nil
 996           wl-summary-delayed-update nil)
 997     (elmo-kill-buffer wl-summary-search-buf-name)
 998     (while numbers
 999       (setq entity (elmo-message-entity wl-summary-buffer-elmo-folder
1000                                         (car numbers)))
1001       (wl-summary-insert-message entity
1002                                  wl-summary-buffer-elmo-folder
1003                                  nil)
1004       (setq numbers (cdr numbers))
1005       (when (> num elmo-display-progress-threshold)
1006         (setq i (+ i 1))
1007         (if (or (zerop (% i 5)) (= i num))
1008             (elmo-display-progress
1009              'wl-summary-rescan "Constructing summary structure..."
1010              (/ (* i 100) num)))))
1011     (when wl-summary-delayed-update
1012       (while wl-summary-delayed-update
1013         (message "Parent (%d) of message %d is no entity"
1014                  (caar wl-summary-delayed-update)
1015                  (elmo-message-entity-number
1016                   (cdar wl-summary-delayed-update)))
1017         (wl-summary-insert-message
1018          (cdar wl-summary-delayed-update)
1019          wl-summary-buffer-elmo-folder nil t)
1020         (setq wl-summary-delayed-update (cdr wl-summary-delayed-update))))
1021     (message "Constructing summary structure...done")
1022     (if (eq wl-summary-buffer-view 'thread)
1023         (progn
1024           (message "Inserting thread...")
1025           (wl-thread-insert-top)
1026           (message "Inserting thread...done")))
1027     (when wl-use-scoring
1028       (wl-summary-score-headers (wl-summary-rescore-msgs
1029                                  wl-summary-buffer-number-list)
1030                                 t)
1031       (when (and wl-summary-scored
1032                  (setq expunged (wl-summary-score-update-all-lines)))
1033         (message "%d message(s) are expunged by scoring." (length expunged))))
1034     (wl-summary-set-message-modified)
1035     (wl-summary-count-unread)
1036     (wl-summary-update-modeline)
1037     (goto-char (point-max))
1038     (forward-line -1)
1039     (set-buffer-modified-p nil)))
1040
1041 (defun wl-summary-next-folder-or-exit (&optional next-entity upward)
1042   (if (and next-entity
1043            wl-auto-select-next)
1044       (let (retval)
1045         (wl-summary-toggle-disp-msg 'off)
1046         (unwind-protect
1047             (setq retval
1048                   (wl-summary-goto-folder-subr next-entity
1049                                                'force-update
1050                                                nil
1051                                                nil ; not sticky
1052                                                t   ; interactive!
1053                                                ))
1054           (wl-folder-set-current-entity-id (wl-folder-get-entity-id next-entity))
1055           (if (and (eq retval 'more-next)
1056                    (memq wl-auto-select-next '(unread skip-no-unread))
1057                    (memq this-command wl-summary-next-no-unread-command))
1058               (if upward
1059                   (wl-summary-up
1060                    t (eq wl-auto-select-next 'skip-no-unread))
1061                 (goto-char (point-max))
1062                 (forward-line -1)
1063                 (wl-summary-down
1064                  t (eq wl-auto-select-next 'skip-no-unread))))))
1065     (wl-summary-exit)))
1066
1067 (defun wl-summary-entity-info-msg (entity finfo)
1068   (or (and entity
1069            (concat
1070             (if (memq 'ask-folder wl-use-folder-petname)
1071                 (wl-folder-get-petname entity)
1072               entity)
1073             (if (null (car finfo))
1074                 " (? new/? unread)"
1075               (format
1076                " (%d new/%d unread)"
1077                (nth 0 finfo)
1078                (+ (nth 0 finfo)
1079                   (nth 1 finfo))))))
1080       "folder mode"))
1081
1082 (defun wl-summary-set-message-modified ()
1083   (setq wl-summary-buffer-message-modified t))
1084 (defun wl-summary-message-modified-p ()
1085   wl-summary-buffer-message-modified)
1086 (defun wl-summary-set-thread-modified ()
1087   (setq wl-summary-buffer-thread-modified t))
1088 (defun wl-summary-thread-modified-p ()
1089   wl-summary-buffer-thread-modified)
1090
1091 (defun wl-summary-exec-with-confirmation (&optional message)
1092   (when wl-summary-buffer-temp-mark-list
1093     (if (y-or-n-p (or message
1094                       (format "Execute marks in %s? "
1095                               (wl-summary-buffer-folder-name))))
1096         (progn
1097           (wl-summary-exec)
1098           (if wl-summary-buffer-temp-mark-list
1099               (error "Some execution was failed")))
1100       ;; temp-mark-list is remained.
1101       (message ""))))
1102
1103 (defun wl-summary-cleanup-temp-marks ()
1104   (when wl-summary-buffer-temp-mark-list
1105     (wl-summary-exec-with-confirmation
1106      (format "Execute marks in %s? (answer \"n\" to discard them) "
1107              (wl-summary-buffer-folder-name)))
1108     (wl-summary-delete-all-temp-marks 'no-msg)
1109     (setq wl-summary-scored nil)))
1110
1111 ;; a subroutine for wl-summary-exit/wl-save-status
1112 ;; Note that folder is not commited here.
1113 (defun wl-summary-save-view ()
1114   ;; already in summary buffer.
1115   (when wl-summary-buffer-persistent
1116     ;; save the current summary buffer view.
1117     (if (and wl-summary-cache-use
1118              (or (wl-summary-message-modified-p)
1119                  (wl-summary-thread-modified-p)))
1120         (wl-summary-save-view-cache))))
1121
1122 (defun wl-summary-save-status ()
1123   "Save summary view and msgdb."
1124   (interactive)
1125   (if (interactive-p) (message "Saving summary status..."))
1126   (wl-summary-save-view)
1127   (elmo-folder-commit wl-summary-buffer-elmo-folder)
1128   (elmo-folder-check wl-summary-buffer-elmo-folder)
1129   (if wl-use-scoring (wl-score-save))
1130   (if (interactive-p) (message "Saving summary status...done")))
1131
1132 (defun wl-summary-force-exit ()
1133   "Exit current summary.  Buffer is deleted even the buffer is sticky."
1134   (interactive)
1135   (wl-summary-exit 'force-exit))
1136
1137 (defun wl-summary-exit (&optional force-exit)
1138   "Exit current summary.  if FORCE-EXIT, exits even the summary is sticky."
1139   (interactive "P")
1140   (let ((summary-buf (current-buffer))
1141         (sticky (wl-summary-sticky-p))
1142         summary-win
1143         message-buf message-win
1144         folder-buf folder-win)
1145     (run-hooks 'wl-summary-exit-pre-hook)
1146     (if wl-summary-buffer-exit-function
1147         (funcall wl-summary-buffer-exit-function)
1148       (if (or force-exit (not sticky))
1149           (wl-summary-cleanup-temp-marks))
1150       (unwind-protect
1151           ;; save summary status
1152           (progn
1153             (wl-summary-save-view)
1154             (if (or force-exit (not sticky))
1155                 (elmo-folder-close wl-summary-buffer-elmo-folder)
1156               (elmo-folder-commit wl-summary-buffer-elmo-folder)
1157               (elmo-folder-check wl-summary-buffer-elmo-folder))
1158             (if wl-use-scoring (wl-score-save)))
1159         ;; for sticky summary
1160         (wl-delete-all-overlays)
1161         (setq wl-summary-buffer-disp-msg nil)
1162         (elmo-kill-buffer wl-summary-search-buf-name)
1163         ;; delete message window if displayed.
1164         (if (and wl-message-buffer (get-buffer-window wl-message-buffer))
1165             (delete-window (get-buffer-window wl-message-buffer)))
1166         (if (and wl-summary-use-frame
1167                  (> (length (visible-frame-list)) 1))
1168             (delete-frame))
1169         (if (setq folder-buf (get-buffer wl-folder-buffer-name))
1170             (if wl-summary-use-frame
1171                 (let (select-frame)
1172                   (save-selected-window
1173                     (dolist (frame (visible-frame-list))
1174                       (select-frame frame)
1175                       (if (get-buffer-window folder-buf)
1176                           (setq select-frame frame))))
1177                   (if select-frame
1178                       (select-frame select-frame)
1179                     (switch-to-buffer folder-buf)))
1180               (if (setq folder-win (get-buffer-window folder-buf))
1181                   ;; folder win is already displayed.
1182                   (select-window folder-win)
1183                 ;; folder win is not displayed.
1184                 (switch-to-buffer folder-buf)))
1185           ;; currently no folder buffer
1186           (wl-folder))
1187         (and wl-folder-move-cur-folder
1188              wl-folder-buffer-cur-point
1189              (goto-char wl-folder-buffer-cur-point))
1190         (setq wl-folder-buffer-cur-path nil)
1191         (setq wl-folder-buffer-last-visited-entity-id wl-folder-buffer-cur-entity-id)
1192         (setq wl-folder-buffer-cur-entity-id nil)
1193         (wl-delete-all-overlays)
1194         (if wl-summary-exit-next-move
1195             (wl-folder-next-unsync t)
1196           (beginning-of-line))
1197         (if (setq summary-win (get-buffer-window summary-buf))
1198             (delete-window summary-win))
1199         (if (or force-exit
1200                 (not sticky))
1201             (progn
1202               (set-buffer summary-buf)
1203               (kill-buffer summary-buf)))
1204         (run-hooks 'wl-summary-exit-hook)))))
1205
1206 (defun wl-summary-suspend ()
1207   (interactive)
1208   (wl-summary-exit)
1209   (wl-folder-suspend))
1210
1211 (defun wl-summary-sync-force-update (&optional unset-cursor no-check)
1212   (interactive)
1213   (wl-summary-sync-update unset-cursor nil nil no-check))
1214
1215 (defsubst wl-summary-sync-all-init ()
1216   (wl-summary-cleanup-temp-marks)
1217   (erase-buffer)
1218   (wl-summary-set-message-modified)
1219   (setq wl-thread-entity-hashtb (elmo-make-hash
1220                                  (* (elmo-folder-length
1221                                      wl-summary-buffer-elmo-folder)
1222                                     2)))
1223   (setq wl-thread-entity-list nil)
1224   (setq wl-thread-entities nil)
1225   (setq wl-summary-buffer-number-list nil)
1226   (setq wl-summary-buffer-target-mark-list nil)
1227   (setq wl-summary-buffer-temp-mark-list nil))
1228
1229 (defun wl-summary-sync (&optional unset-cursor force-range)
1230   (interactive)
1231   (let* ((folder wl-summary-buffer-elmo-folder)
1232          (inhibit-read-only t)
1233          (buffer-read-only nil)
1234          (msgdb-dir (elmo-folder-msgdb-path folder))
1235          (range (or force-range (wl-summary-input-range
1236                                  (elmo-folder-name-internal folder)))))
1237     (cond ((string-match "rescan" range)
1238            (let ((msg (wl-summary-message-number))
1239                  (wl-use-scoring (if (string-match "noscore" range)
1240                                      nil
1241                                    wl-use-scoring)))
1242              (wl-summary-rescan nil
1243                                 (string-match "noscore" range)
1244                                 (string-match "thread" range))
1245              (and msg (wl-summary-jump-to-msg msg))))
1246           ((string= range "mark")
1247            (let ((msg (wl-summary-message-number)))
1248              (call-interactively 'wl-summary-sync-marks)
1249              (and msg (wl-summary-jump-to-msg msg))))
1250           ((string= range "cache-status")
1251            (let ((msg (wl-summary-message-number)))
1252              (wl-summary-resume-cache-status)
1253              (and msg (wl-summary-jump-to-msg msg))))
1254           ((string= range "no-sync"))
1255           ((or (string-match "^last:" range)
1256                (string-match "^first:" range))
1257            (wl-summary-goto-folder-subr (concat "/" range "/"
1258                                                 (elmo-folder-name-internal
1259                                                  folder))
1260                                         'force-update nil nil t))
1261           (t
1262            (wl-summary-sync-update unset-cursor
1263                                    (string-match "entirely" range)
1264                                    (string-match "all" range))))))
1265
1266 (defvar wl-summary-edit-addresses-candidate-fields
1267   ;; First element becomes default.
1268   '("from" "to" "cc"))
1269
1270 (defun wl-summary-edit-addresses-collect-candidate-fields (mime-charset)
1271   (let ((fields wl-summary-edit-addresses-candidate-fields)
1272         body candidates components)
1273     (while fields
1274       (setq body
1275             (mapconcat 'identity (elmo-multiple-field-body (car fields))
1276                        ","))
1277       (setq body (wl-parse-addresses body))
1278       (if body (setq candidates (append candidates body)))
1279       (setq fields (cdr fields)))
1280     (setq candidates (elmo-uniq-list candidates))
1281     (elmo-set-work-buf
1282      (set-buffer-multibyte default-enable-multibyte-characters)
1283      (mapcar (function
1284               (lambda (x)
1285                 (setq components (std11-extract-address-components x))
1286                 (cons (nth 1 components)
1287                       (and (car components)
1288                            (eword-decode-string
1289                             (decode-mime-charset-string
1290                              (car components)
1291                              mime-charset))))))
1292              candidates))))
1293
1294 (defun wl-summary-edit-addresses-subr (the-email name-in-addr)
1295   ;; returns nil if there's no change.
1296   (if (elmo-get-hash-val (downcase the-email) wl-address-petname-hash)
1297       (let (char)
1298         (message "'%s' already exists. (e)dit/(d)elete/(c)ancel?"
1299                  the-email)
1300         (while (not (or (eq (setq char (read-char)) ?\r)
1301                         (eq char ?\n)
1302                         (eq char ? )
1303                         (eq char ?e)
1304                         (eq char ?c)
1305                         (eq char ?d)))
1306           (message
1307            "Please answer `e' or `d' or `c'. (e)dit/(d)elete/(c)ancel?"))
1308         (cond
1309          ((or (eq char ?e)
1310               (eq char ?\n)
1311               (eq char ?\r)
1312               (eq char ? ))
1313           ;; Change Addresses
1314           (wl-address-add-or-change
1315            the-email
1316            (wl-address-header-extract-realname
1317             (cdr (assoc
1318                   (let ((completion-ignore-case t) comp)
1319                     (setq comp
1320                           (try-completion the-email wl-address-completion-list))
1321                     (if (equal comp t) the-email comp))
1322                   wl-address-completion-list))))
1323           "edited")
1324          ((eq char ?d)
1325           ;; Delete Addresses
1326           (if (y-or-n-p (format "Delete '%s'? "
1327                                 the-email))
1328               (progn
1329                 (wl-address-delete the-email)
1330                 "deleted")
1331             (message "")
1332             nil))
1333          (t (message "")
1334             nil)))
1335     ;; Add Petname
1336     (wl-address-add-or-change the-email name-in-addr)
1337     "added"))
1338
1339 (defun wl-summary-edit-addresses (&optional addr-str)
1340   "Edit address book interactively.
1341 Optional argument ADDR-STR is used as a target address if specified."
1342   (interactive (if current-prefix-arg
1343                    (list (read-from-minibuffer "Target address: "))))
1344   (if (null (wl-summary-message-number))
1345       (message "No message.")
1346     (save-excursion
1347       (let* ((charset wl-summary-buffer-mime-charset)
1348              (candidates
1349               (with-current-buffer (wl-summary-get-original-buffer)
1350                 (wl-summary-edit-addresses-collect-candidate-fields
1351                  charset)))
1352              address pair result)
1353         (if addr-str
1354             (setq address addr-str)
1355           (when candidates
1356             (setq address (car (car candidates)))
1357             (setq address
1358                   (completing-read
1359                    (format "Target address (%s): " address)
1360                    (mapcar
1361                     (function (lambda (x) (cons (car x) (car x))))
1362                     candidates)
1363                    nil nil nil nil address))))
1364         (when address
1365           (setq pair (assoc address candidates))
1366           (unless pair
1367             (setq pair (cons address nil)))
1368           (when (setq result (wl-summary-edit-addresses-subr (car pair) (cdr pair)))
1369             ;; update alias
1370             (wl-status-update)
1371             (setq address (assoc (car pair) wl-address-list))
1372             (if address
1373                 (message "%s, %s, <%s> is %s."
1374                          (nth 2 address)
1375                          (nth 1 address)
1376                          (nth 0 address)
1377                          result)))
1378 ;;; i'd like to update summary-buffer, but...
1379 ;;;     (wl-summary-rescan)
1380           (run-hooks 'wl-summary-edit-addresses-hook))))))
1381
1382 (defun wl-summary-incorporate (&optional arg)
1383   "Check and prefetch all uncached messages.
1384 If ARG is non-nil, checking is omitted."
1385   (interactive "P")
1386   (unless arg
1387     (save-excursion
1388       (wl-summary-sync-force-update)))
1389   (wl-summary-prefetch-region-no-mark (point-min) (point-max)
1390                                       wl-summary-incorporate-marks))
1391
1392 (defun wl-summary-prefetch-msg (number &optional arg)
1393   "Prefetch message and return non-nil value. If skipped, return nil."
1394   ;; prefetching procedure.
1395   (save-excursion
1396     (let* ((size (elmo-message-field wl-summary-buffer-elmo-folder
1397                                      number 'size))
1398            (file-cached (elmo-file-cache-exists-p
1399                          (elmo-message-field wl-summary-buffer-elmo-folder
1400                                              number 'message-id)))
1401            (force-read (and size
1402                             (or file-cached
1403                                 (and (null wl-prefetch-confirm) arg)
1404                                 (null wl-prefetch-threshold)
1405                                 (< size wl-prefetch-threshold))))
1406            mark new-mark)
1407       (ignore-errors
1408         (when (and (or arg (not file-cached))
1409                    size (not force-read) wl-prefetch-confirm)
1410           (let ((wl-message-entity (elmo-message-entity
1411                                     wl-summary-buffer-elmo-folder
1412                                     number)))
1413             (setq force-read
1414                   (save-restriction
1415                     (widen)
1416                     (y-or-n-p
1417                      (format
1418                       "Message from %s has %d bytes.  Prefetch it? "
1419                       (concat
1420                        "[ "
1421                        (save-match-data
1422                          (wl-set-string-width
1423                           17
1424                           (funcall
1425                            wl-summary-from-function
1426                            (elmo-delete-char
1427                             ?\"
1428                             (or
1429                              (elmo-message-entity-field
1430                               wl-message-entity
1431                               'from t)
1432                              "??")))))
1433                        " ]")
1434                       size))))
1435             (message "")))              ; flush.
1436         (if force-read
1437             (save-excursion
1438               (save-match-data
1439                 ;; online
1440                 (if (or arg (not file-cached))
1441                     (elmo-message-encache
1442                      wl-summary-buffer-elmo-folder
1443                      number))
1444                 (elmo-message-set-cached wl-summary-buffer-elmo-folder
1445                                          number t)
1446                 (when (and (wl-summary-jump-to-msg number)
1447                            (wl-summary-update-persistent-mark))
1448                   (sit-for 0)
1449                   (wl-summary-count-unread)
1450                   (wl-summary-update-modeline)
1451                   (wl-folder-update-unread
1452                    (wl-summary-buffer-folder-name)
1453                    (+ wl-summary-buffer-unread-count
1454                       wl-summary-buffer-new-count))))
1455               t)
1456           nil)))))
1457
1458 (defsubst wl-summary-narrow-to-region (beg end)
1459   (narrow-to-region
1460    (save-excursion
1461      (goto-char beg)
1462      (beginning-of-line)
1463      (point))
1464    (save-excursion
1465      (goto-char end)
1466      (if (eq (current-column) 0) (beginning-of-line) (end-of-line))
1467      (point))))
1468
1469 (defun wl-summary-prefetch-region-no-mark (beg end &optional prefetch-marks)
1470   (interactive "r")
1471   (let ((count 0)
1472         targets
1473         mark length
1474         entity msg
1475         start-pos pos)
1476     (save-excursion
1477       (setq start-pos (point))
1478       (save-restriction
1479         (wl-summary-narrow-to-region beg end)
1480         ;; collect prefetch targets.
1481         (message "Collecting marks...")
1482         (goto-char (point-min))
1483         (while (not (eobp))
1484           (setq mark (wl-summary-persistent-mark)
1485                 msg (wl-summary-message-number))
1486           (if (or (and (null prefetch-marks)
1487                        msg
1488                        (null (elmo-file-cache-exists-p
1489                               (elmo-message-field
1490                                wl-summary-buffer-elmo-folder
1491                                msg
1492                                'message-id))))
1493                   (member mark prefetch-marks))
1494               (setq targets (nconc targets (list msg))))
1495           (setq entity (wl-thread-get-entity msg))
1496           (if (or (not (eq wl-summary-buffer-view 'thread))
1497                   (wl-thread-entity-get-opened entity))
1498               (); opened. no hidden children.
1499             (setq targets (nconc
1500                            targets
1501                            (wl-thread-get-children-msgs-uncached
1502                             msg prefetch-marks))))
1503           (forward-line 1))
1504         (setq length (length targets))
1505         (message "Prefetching...")
1506         (while targets
1507           (when (if (not (wl-thread-entity-parent-invisible-p
1508                           (wl-thread-get-entity (car targets))))
1509                     (progn
1510                       (wl-summary-jump-to-msg (car targets))
1511                       (wl-summary-prefetch-msg
1512                        (wl-summary-message-number)))
1513                   (wl-summary-prefetch-msg (car targets)))
1514             (message "Prefetching... %d/%d message(s)"
1515                      (setq count (+ 1 count)) length))
1516           (setq targets (cdr targets)))
1517         (message "Prefetched %d/%d message(s)" count length)
1518         (cons count length)))))
1519
1520 (defun wl-summary-delete-marks-on-buffer (marks)
1521   (while marks
1522     (wl-summary-unmark (pop marks))))
1523
1524 (defun wl-summary-delete-copy-marks-on-buffer (copies)
1525   (wl-summary-delete-marks-on-buffer copies))
1526
1527 ;;;
1528 (defun wl-summary-delete-all-target-marks ()
1529   (wl-summary-delete-marks-on-buffer wl-summary-buffer-target-mark-list))
1530
1531 (defun wl-summary-mark-as-read-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-read 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-read number-list))))))
1555
1556 (defun wl-summary-mark-as-unread-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       (if (eq wl-summary-buffer-view 'thread)
1563           (let (number-list)
1564             (while (not (eobp))
1565               (let* ((number (wl-summary-message-number))
1566                      (entity (wl-thread-get-entity number)))
1567                 (if (wl-thread-entity-get-opened entity)
1568                     (setq number-list (append number-list (list number)))
1569                   (setq number-list
1570                         (append number-list
1571                                 (wl-thread-get-children-msgs number))))
1572                 (forward-line 1)))
1573             (wl-summary-mark-as-unread number-list))
1574         (let (number-list)
1575           (while (not (eobp))
1576             (setq number-list
1577                   (append number-list (list (wl-summary-message-number))))
1578             (forward-line 1))
1579           (wl-summary-mark-as-unread number-list))))))
1580
1581 (defun wl-summary-set-flags-region (beg end)
1582   (interactive "r")
1583   (save-excursion
1584     (save-restriction
1585       (wl-summary-narrow-to-region beg end)
1586       (goto-char (point-min))
1587       (let (flags)
1588         (if (eq wl-summary-buffer-view 'thread)
1589             (while (not (eobp))
1590               (let* ((number (wl-summary-message-number))
1591                      (entity (wl-thread-get-entity number))
1592                      children)
1593                 (if (wl-thread-entity-get-opened entity)
1594                     ;; opened...mark line.
1595                     ;; Crossposts are not processed
1596                     (setq flags (wl-summary-set-flags-internal
1597                                 number
1598                                 flags))
1599                   ;; closed
1600                   (setq flags (wl-summary-set-flags-internal
1601                               (wl-thread-get-children-msgs number)
1602                               flags)))
1603                 (forward-line 1)))
1604           (while (not (eobp))
1605             (setq flags (wl-summary-set-flags-internal
1606                         (wl-summary-message-number) flags))
1607             (forward-line 1))))))
1608   (wl-summary-count-unread)
1609   (wl-summary-update-modeline))
1610
1611 (defun wl-summary-mark-as-answered-region (beg end)
1612   (interactive "r")
1613   (save-excursion
1614     (save-restriction
1615       (wl-summary-narrow-to-region beg end)
1616       (goto-char (point-min))
1617       (let ((inverse (elmo-message-flagged-p wl-summary-buffer-elmo-folder
1618                                              (wl-summary-message-number)
1619                                              'answered)))
1620         (if (eq wl-summary-buffer-view 'thread)
1621             (while (not (eobp))
1622               (let* ((number (wl-summary-message-number))
1623                      (entity (wl-thread-get-entity number))
1624                      children)
1625                 (if (wl-thread-entity-get-opened entity)
1626                     ;; opened...mark line.
1627                     ;; Crossposts are not processed
1628                     (wl-summary-mark-as-answered-internal inverse)
1629                   ;; closed
1630                   (wl-summary-mark-as-answered-internal
1631                    inverse
1632                    (wl-thread-get-children-msgs number)))
1633                 (forward-line 1)))
1634           (while (not (eobp))
1635             (wl-summary-mark-as-answered-internal inverse)
1636             (forward-line 1))))))
1637   (wl-summary-count-unread)
1638   (wl-summary-update-modeline))
1639
1640 (defun wl-summary-mark-as-important-region (beg end)
1641   (interactive "r")
1642   (save-excursion
1643     (save-restriction
1644       (wl-summary-narrow-to-region beg end)
1645       (goto-char (point-min))
1646       (let ((inverse (elmo-message-flagged-p wl-summary-buffer-elmo-folder
1647                                              (wl-summary-message-number)
1648                                              'important)))
1649         (if (eq wl-summary-buffer-view 'thread)
1650             (while (not (eobp))
1651               (let* ((number (wl-summary-message-number))
1652                      (entity (wl-thread-get-entity number))
1653                      children)
1654                 (if (wl-thread-entity-get-opened entity)
1655                     ;; opened...mark line.
1656                     ;; Crossposts are not processed
1657                     (wl-summary-mark-as-important-internal inverse)
1658                   ;; closed
1659                   (wl-summary-mark-as-important-internal
1660                    inverse
1661                    (wl-thread-get-children-msgs number)))
1662                 (forward-line 1)))
1663           (while (not (eobp))
1664             (wl-summary-mark-as-important-internal inverse)
1665             (forward-line 1))))))
1666   (wl-summary-count-unread)
1667   (wl-summary-update-modeline))
1668
1669 (defun wl-summary-mark-as-read-all ()
1670   (interactive)
1671   (if (or (not (interactive-p))
1672           (y-or-n-p "Mark all messages as read? "))
1673       (let ((folder wl-summary-buffer-elmo-folder)
1674             (cur-buf (current-buffer)))
1675         (message "Setting all msgs as read...")
1676         (elmo-folder-set-flag
1677          folder
1678          (elmo-folder-list-flagged folder 'unread 'in-msgdb)
1679          'read)
1680         (save-excursion
1681           (goto-char (point-min))
1682           (while (not (eobp))
1683             (wl-summary-update-persistent-mark)
1684             (forward-line 1)))
1685         (wl-folder-update-unread (wl-summary-buffer-folder-name) 0)
1686         (setq wl-summary-buffer-unread-count 0)
1687         (setq wl-summary-buffer-new-count    0)
1688         (wl-summary-update-modeline)
1689         (message "Setting all msgs as read...done"))))
1690
1691 (defun wl-summary-delete-cache ()
1692   "Delete cache of current message."
1693   (interactive)
1694   (save-excursion
1695     (let* ((folder wl-summary-buffer-elmo-folder)
1696            number)
1697       (setq number (wl-summary-message-number))
1698       (elmo-message-set-cached folder number nil)
1699       (when (wl-summary-update-persistent-mark)
1700         (elmo-file-cache-delete
1701          (elmo-file-cache-get-path
1702           (elmo-message-field wl-summary-buffer-elmo-folder
1703                               number
1704                               'message-id)))))))
1705
1706 (defun wl-summary-resume-cache-status ()
1707   "Resume the cache status of all messages in the current folder."
1708   (interactive)
1709   (let ((folder wl-summary-buffer-elmo-folder)
1710         number msgid)
1711     (message "Resuming cache status...")
1712     (save-excursion
1713       (goto-char (point-min))
1714       (while (not (eobp))
1715         (setq number (wl-summary-message-number))
1716         (setq msgid (elmo-message-field folder number 'message-id))
1717         (elmo-message-set-cached folder number
1718                                  (elmo-file-cache-exists-p msgid))
1719         (wl-summary-update-persistent-mark)
1720         (forward-line 1))
1721       (wl-summary-count-unread)
1722       (wl-summary-update-modeline)
1723       (message "Resuming cache status...done"))))
1724
1725 (defun wl-summary-delete-messages-on-buffer (msgs &optional deleting-info)
1726   (interactive)
1727   (save-excursion
1728     (let ((inhibit-read-only t)
1729           (buffer-read-only nil)
1730           (msgs2 msgs)
1731           (len (length msgs))
1732           (i 0)
1733           ;(deleting-info (or deleting-info "Deleting..."))
1734           update-list)
1735       (elmo-kill-buffer wl-summary-search-buf-name)
1736       (while msgs
1737         (if (eq wl-summary-buffer-view 'thread)
1738             (progn
1739               ;; don't use wl-append(nconc), because list is broken. ...why?
1740               (setq update-list
1741                     (append update-list
1742                             (wl-thread-delete-message (car msgs))))
1743               (setq update-list (delq (car msgs) update-list)))
1744           (goto-char (point-min))
1745           (if (wl-summary-jump-to-msg (car msgs))
1746               (progn
1747                 (delete-region (point-at-bol) (point-at-eol))
1748                 (delete-char 1) ; delete '\n'
1749                 (setq wl-summary-buffer-number-list
1750                       (delq (car msgs) wl-summary-buffer-number-list)))))
1751 ;       (when (> len elmo-display-progress-threshold)
1752 ;         (setq i (1+ i))
1753 ;         (if (or (zerop (% i 5)) (= i len))
1754 ;             (elmo-display-progress
1755 ;              'wl-summary-delete-messages-on-buffer deleting-info
1756 ;              (/ (* i 100) len))))
1757         (setq msgs (cdr msgs)))
1758       (when (eq wl-summary-buffer-view 'thread)
1759         (wl-thread-update-line-msgs (elmo-uniq-list update-list))
1760         (wl-thread-cleanup-symbols msgs2))
1761       ;;(message (concat deleting-info "done"))
1762       (wl-summary-count-unread)
1763       (wl-summary-update-modeline)
1764       (wl-summary-folder-info-update))))
1765
1766 (defun wl-summary-update-status-marks (beg end &optional check)
1767   "Synchronize status marks on current buffer to the msgdb."
1768   (interactive "r")
1769   (save-excursion
1770     (goto-char beg)
1771     (while (and (< (point) end) (not (eobp)))
1772       (when (or (not check)
1773                 (let ((number (wl-summary-message-number)))
1774                   (when (memq number wl-summary-buffer-unsync-mark-number-list)
1775                     (setq wl-summary-buffer-unsync-mark-number-list
1776                           (delq number
1777                                 wl-summary-buffer-unsync-mark-number-list))
1778                     t)))
1779         (wl-summary-update-persistent-mark))
1780       (forward-line 1))))
1781
1782 (defun wl-summary-update-mark-window (&optional win beg)
1783   "Update persistent mark in visible summary window.
1784 This function is defined for `window-scroll-functions'"
1785   (with-current-buffer (window-buffer win)
1786     (when (eq major-mode 'wl-summary-mode)
1787       (let ((start (window-start win))
1788             (end (condition-case nil
1789                      (window-end win t) ; old emacsen doesn't support 2nd arg.
1790                    (error (window-end win)))))
1791         (wl-summary-update-status-marks start end 'check)))))
1792
1793 (defun wl-summary-insert-message (&rest args)
1794   (if (eq wl-summary-buffer-view 'thread)
1795       (apply 'wl-summary-insert-thread args)
1796     (apply 'wl-summary-insert-sequential args)))
1797
1798 (defun wl-summary-sort ()
1799   (interactive)
1800   (wl-summary-rescan
1801    (completing-read
1802     (format "Sort by (%s): " (symbol-name wl-summary-default-sort-spec))
1803     (mapcar (lambda (spec)
1804               (list (symbol-name spec)))
1805             wl-summary-sort-specs)
1806     nil t nil nil (symbol-name wl-summary-default-sort-spec))))
1807
1808 (defun wl-summary-sync-marks ()
1809   "Update persistent marks in summary."
1810   (interactive)
1811   (let ((mes "Updated ")
1812         diff diffs)
1813     ;; synchronize marks.
1814     (when (not (eq (elmo-folder-type-internal
1815                     wl-summary-buffer-elmo-folder)
1816                    'internal))
1817
1818       (message "Updating marks...")
1819       (dolist (flag elmo-global-flag-list)
1820         (unless (memq flag '(answered cached new unread))
1821           (setq diff (elmo-list-diff (elmo-folder-list-flagged
1822                                       wl-summary-buffer-elmo-folder
1823                                       flag)
1824                                      (elmo-folder-list-flagged
1825                                       wl-summary-buffer-elmo-folder
1826                                       flag 'in-msgdb)))
1827           (setq diffs (cadr diff)) ; deletes
1828           (setq mes (concat mes (format "-%d" (length diffs))))
1829           (while diffs
1830             (wl-summary-remove-flags-internal (car diffs)
1831                                              (list flag) 'no-server)
1832             (setq diffs (cdr diffs)))
1833           (setq diffs (car diff)) ; appends
1834           (setq mes (concat mes (format "/+%d %s," (length diffs) flag)))
1835           (while diffs
1836             (wl-summary-add-flags-internal (car diffs)
1837                                           (list flag) 'no-server)
1838             (setq diffs (cdr diffs)))))
1839
1840       (setq diff (elmo-list-diff (elmo-folder-list-flagged
1841                                   wl-summary-buffer-elmo-folder
1842                                   'answered)
1843                                  (elmo-folder-list-flagged
1844                                   wl-summary-buffer-elmo-folder
1845                                   'answered 'in-msgdb)))
1846       (setq diffs (cadr diff))
1847       (setq mes (concat mes (format "-%d" (length diffs))))
1848       (while diffs
1849         (wl-summary-mark-as-unanswered (car diffs) 'no-modeline)
1850         (setq diffs (cdr diffs)))
1851       (setq diffs (car diff)) ; unread-appends
1852       (setq mes (concat mes (format "/+%d answered," (length diffs))))
1853       (while diffs
1854         (wl-summary-mark-as-answered (car diffs) 'no-modeline)
1855         (setq diffs (cdr diffs)))
1856
1857       (setq diff (elmo-list-diff (elmo-folder-list-flagged
1858                                   wl-summary-buffer-elmo-folder
1859                                   'unread)
1860                                  (elmo-folder-list-flagged
1861                                   wl-summary-buffer-elmo-folder
1862                                   'unread 'in-msgdb)))
1863       (setq diffs (cadr diff))
1864       (setq mes (concat mes (format "-%d" (length diffs))))
1865       (while diffs
1866         (wl-summary-mark-as-read (car diffs) 'no-folder 'no-modeline)
1867         (setq diffs (cdr diffs)))
1868       (setq diffs (car diff)) ; unread-appends
1869       (setq mes (concat mes (format "/+%d unread." (length diffs))))
1870       (while diffs
1871         (wl-summary-mark-as-unread (car diffs) 'no-folder 'no-modeline)
1872         (setq diffs (cdr diffs)))
1873       (if (interactive-p) (message "%s" mes)))))
1874
1875 (defun wl-summary-sync-update (&optional unset-cursor
1876                                          disable-killed
1877                                          sync-all
1878                                          no-check)
1879   "Update the summary view to the newest folder status."
1880   (interactive)
1881   (let* ((folder wl-summary-buffer-elmo-folder)
1882          (elmo-mime-charset wl-summary-buffer-mime-charset)
1883          (inhibit-read-only t)
1884          (buffer-read-only nil)
1885          gc-message
1886          overview
1887          curp num i diff
1888          append-list delete-list crossed
1889          update-thread update-top-list
1890          expunged mes entity)
1891     (unwind-protect
1892         (progn
1893           (unless wl-summary-buffer-elmo-folder
1894             (error "(Internal error) Folder is not set:%s" (buffer-name
1895                                                             (current-buffer))))
1896           ;; Flush pending append operations (disconnected operation).
1897           ;;(setq seen-list
1898           ;;(wl-summary-flush-pending-append-operations seen-list))
1899           (goto-char (point-max))
1900           (wl-folder-confirm-existence folder (elmo-folder-plugged-p folder))
1901           (setq crossed (elmo-folder-synchronize folder
1902                                                  disable-killed
1903                                                  sync-all
1904                                                  no-check))
1905           (if crossed
1906               (let ((wl-summary-highlight
1907                      (and wl-summary-highlight
1908                           (not wl-summary-lazy-highlight))))
1909                 ;; Setup sync-all
1910                 (if sync-all (wl-summary-sync-all-init))
1911                 (setq diff (elmo-list-diff (elmo-folder-list-messages
1912                                             folder
1913                                             (not disable-killed)
1914                                             'in-msgdb)
1915                                            wl-summary-buffer-number-list))
1916                 (setq append-list (car diff))
1917                 (setq delete-list (cadr diff))
1918
1919                 (when delete-list
1920                   (wl-summary-delete-messages-on-buffer delete-list))
1921                 (unless wl-summary-lazy-update-mark
1922                   (wl-summary-update-status-marks (point-min) (point-max)))
1923                 (when (and wl-summary-lazy-highlight
1924                            wl-summary-lazy-update-mark)
1925                   (let (buffer-read-only)
1926                     (put-text-property (point-min) (point-max) 'face nil)))
1927                 (setq num (length append-list))
1928                 (setq i 0)
1929                 (setq wl-summary-delayed-update nil)
1930                 (elmo-kill-buffer wl-summary-search-buf-name)
1931                 (dolist (number append-list)
1932                   (setq entity (elmo-message-entity folder number))
1933                   (when (setq update-thread
1934                               (wl-summary-insert-message
1935                                entity folder
1936                                (not sync-all)))
1937                     (wl-append update-top-list update-thread))
1938                   (if elmo-use-database
1939                       (elmo-database-msgid-put
1940                        (car entity) (elmo-folder-name-internal folder)
1941                        (elmo-message-entity-number entity)))
1942                   (when (> num elmo-display-progress-threshold)
1943                     (setq i (+ i 1))
1944                     (if (or (zerop (% i 5)) (= i num))
1945                         (elmo-display-progress
1946                          'wl-summary-sync-update
1947                          (if (eq wl-summary-buffer-view 'thread)
1948                              "Making thread..."
1949                            "Inserting message...")
1950                          (/ (* i 100) num)))))
1951                 (when wl-summary-delayed-update
1952                   (while wl-summary-delayed-update
1953                     (message "Parent (%d) of message %d is no entity"
1954                              (caar wl-summary-delayed-update)
1955                              (elmo-message-entity-number
1956                               (cdar wl-summary-delayed-update)))
1957                     (when (setq update-thread
1958                                 (wl-summary-insert-message
1959                                  (cdar wl-summary-delayed-update)
1960                                  wl-summary-buffer-elmo-folder
1961                                  (not sync-all) t))
1962                       (wl-append update-top-list update-thread))
1963                     (setq wl-summary-delayed-update
1964                           (cdr wl-summary-delayed-update))))
1965                 (when (and (eq wl-summary-buffer-view 'thread)
1966                            update-top-list)
1967                   (wl-thread-update-indent-string-thread
1968                    (elmo-uniq-list update-top-list)))
1969                 (message (if (eq wl-summary-buffer-view 'thread)
1970                              "Making thread...done"
1971                            "Inserting message...done"))
1972                 (when (or delete-list append-list)
1973                   (wl-summary-set-message-modified))
1974                 (when (and sync-all (eq wl-summary-buffer-view 'thread))
1975                   (elmo-kill-buffer wl-summary-search-buf-name)
1976                   (message "Inserting message...")
1977                   (wl-thread-insert-top)
1978                   (message "Inserting message...done"))
1979                 (if elmo-use-database
1980                     (elmo-database-close))
1981                 (run-hooks 'wl-summary-sync-updated-hook)
1982                 (setq mes
1983                       (if (and (eq (length delete-list) 0)
1984                                (eq num 0))
1985                           (format
1986                            "No updates for \"%s\"" (elmo-folder-name-internal
1987                                                     folder))
1988                         (format "Updated (-%d/+%d) message(s)"
1989                                 (length delete-list) num))))
1990             (setq mes "Quit updating")))
1991       ;; synchronize marks.
1992       (if (and crossed wl-summary-auto-sync-marks)
1993           (wl-summary-sync-marks))
1994       ;; scoring
1995       (when wl-use-scoring
1996         (setq wl-summary-scored nil)
1997         (wl-summary-score-headers (and sync-all
1998                                        (wl-summary-rescore-msgs
1999                                         wl-summary-buffer-number-list))
2000                                   sync-all)
2001         (when (and wl-summary-scored
2002                    (setq expunged (wl-summary-score-update-all-lines)))
2003           (setq mes (concat mes
2004                             (format " (%d expunged)"
2005                                     (length expunged))))))
2006       (if (and crossed (> crossed 0))
2007           (setq mes
2008                 (if mes
2009                     (concat mes
2010                             (format " (%d crosspost)" crossed))
2011                   (format "%d crosspost message(s)" crossed)))
2012         (and mes (setq mes (concat mes "."))))
2013       ;; Update Folder mode
2014       (wl-folder-set-folder-updated
2015        (elmo-folder-name-internal folder)
2016        (list 0
2017              (let ((lst (wl-summary-count-unread)))
2018                (+ (car lst) (nth 1 lst)))
2019              (elmo-folder-length folder)))
2020       (wl-summary-update-modeline)
2021       ;;
2022       (unless unset-cursor
2023         (goto-char (point-min))
2024         (if (not (wl-summary-cursor-down t))
2025             (progn
2026               (goto-char (point-max))
2027               (forward-line -1))
2028           (when (and wl-summary-highlight
2029                      (not wl-summary-lazy-highlight)
2030                      (not (get-text-property (point) 'face)))
2031             (save-excursion
2032               (forward-line (- 0
2033                                (or
2034                                 wl-summary-partial-highlight-above-lines
2035                                 wl-summary-highlight-partial-threshold)))
2036               (wl-highlight-summary (point) (point-max))))))
2037       (wl-delete-all-overlays)
2038       (when (and wl-summary-highlight
2039                  wl-summary-lazy-highlight)
2040         (run-hooks 'wl-summary-buffer-window-scroll-functions))
2041       (set-buffer-modified-p nil)
2042       (if mes (message "%s" mes)))))
2043
2044 (defun wl-summary-set-score-mark (mark)
2045   (save-excursion
2046     (beginning-of-line)
2047     (let ((cur-mark (wl-summary-temp-mark)))
2048       (when (member cur-mark (list " "
2049                                    wl-summary-score-below-mark
2050                                    wl-summary-score-over-mark))
2051         (wl-summary-put-temp-mark mark)
2052         (if wl-summary-highlight
2053             (wl-highlight-summary-current-line))
2054         (set-buffer-modified-p nil)))))
2055
2056 (defun wl-summary-get-score-mark (msg-num)
2057   (let ((score (cdr (assq msg-num wl-summary-scored))))
2058     (if score
2059         (cond ((< score wl-summary-default-score)
2060                "-")
2061               ((> score wl-summary-default-score)
2062                "+")))))
2063
2064 (defun wl-summary-update-modeline ()
2065   (setq wl-summary-buffer-mode-line
2066         (funcall wl-summary-buffer-mode-line-formatter)))
2067
2068 (defun wl-summary-jump-to-msg (&optional number)
2069   (interactive)
2070   (let ((num (or number
2071                  (string-to-int
2072                   (read-from-minibuffer "Jump to Message(No.): ")))))
2073     (setq num (int-to-string num))
2074     (beginning-of-line)
2075     (if (or (and (re-search-forward (concat "\r" num "[^0-9]") nil t)
2076                  (progn (backward-char 1) t))
2077             (re-search-backward (concat "\r" num "[^0-9]") nil t))
2078         (progn (beginning-of-line) t)
2079       nil)))
2080
2081 (defun wl-summary-highlight-msgs (msgs)
2082   (save-excursion
2083     (let ((len (length msgs))
2084           i)
2085       (message "Hilighting...")
2086       (setq i 0)
2087       (while msgs
2088         (if (wl-summary-jump-to-msg (car msgs))
2089             (wl-highlight-summary-current-line))
2090         (setq msgs (cdr msgs))
2091         (when (> len elmo-display-progress-threshold)
2092           (setq i (+ i 1))
2093           (if (or (zerop (% i 5)) (= i len))
2094               (elmo-display-progress
2095                'wl-summary-highlight-msgs "Highlighting..."
2096                (/ (* i 100) len)))))
2097       (message "Highlighting...done"))))
2098
2099 (defun wl-summary-message-number ()
2100   (save-excursion
2101     (beginning-of-line)
2102     (if (or (re-search-forward "\r\\(-?[0-9]+\\)" (point-at-eol) t)
2103             (re-search-forward "^ *\\(-?[0-9]+\\)" (point-at-eol) t))
2104         (string-to-int (wl-match-buffer 1))
2105       nil)))
2106
2107 (defun wl-summary-delete-all-msgs ()
2108   (interactive)
2109   (let ((cur-buf (current-buffer))
2110         (dels (elmo-folder-list-messages wl-summary-buffer-elmo-folder)))
2111     (set-buffer cur-buf)
2112     (if (null dels)
2113         (message "No message to delete.")
2114       (if (y-or-n-p (format "%s has %d message(s).  Delete all? "
2115                             (wl-summary-buffer-folder-name)
2116                             (length dels)))
2117           (progn
2118             (message "Deleting...")
2119             (elmo-folder-move-messages wl-summary-buffer-elmo-folder dels
2120                                        'null)
2121             (wl-summary-set-message-modified)
2122             (wl-folder-set-folder-updated (wl-summary-buffer-folder-name)
2123                                           (list 0 0 0))
2124 ;;; for thread.
2125 ;;;         (setq wl-thread-top-entity '(nil t nil nil))
2126             (setq wl-summary-buffer-unread-count 0)
2127             (setq wl-summary-buffer-new-count    0)
2128             (wl-summary-update-modeline)
2129             (set-buffer cur-buf)
2130             (let ((inhibit-read-only t)
2131                   (buffer-read-only nil))
2132               (erase-buffer))
2133 ;;;         (if wl-summary-cache-use (wl-summary-save-view-cache))
2134             (message "Deleting...done")
2135             t)
2136         nil))))
2137
2138 (defun wl-summary-toggle-thread (&optional arg)
2139   "Toggle thread status (T)hread and (S)equential.
2140 If ARG, without confirm."
2141   (interactive "P")
2142   (when (or arg
2143             (y-or-n-p (format "Toggle threading? (y=%s): "
2144                               (if (eq wl-summary-buffer-view 'thread)
2145                                   "\"off\"" "\"on\""))))
2146     (if (eq wl-summary-buffer-view 'thread)
2147         (setq wl-summary-buffer-view 'sequence)
2148       (setq wl-summary-buffer-view 'thread))
2149     (wl-summary-update-modeline)
2150     (force-mode-line-update)
2151     (wl-summary-rescan nil nil t)))
2152
2153 (defun wl-summary-load-file-object (filename)
2154   "Load lisp object from dir."
2155   (save-excursion
2156     (let ((tmp-buffer (get-buffer-create " *wl-summary-load-file-object*"))
2157           insert-file-contents-pre-hook   ; To avoid autoconv-xmas...
2158           insert-file-contents-post-hook
2159           ret-val)
2160       (if (not (file-readable-p filename))
2161           ()
2162         (set-buffer tmp-buffer)
2163         (as-binary-input-file (insert-file-contents filename))
2164         (setq ret-val
2165               (condition-case nil
2166                   (read (current-buffer))
2167                 (error (error "Reading failed")))))
2168       (kill-buffer tmp-buffer)
2169       ret-val)))
2170
2171 (defun wl-summary-goto-folder (&optional arg)
2172   (interactive "P")
2173   (wl-summary-goto-folder-subr nil nil nil nil t nil arg))
2174
2175 (defun wl-summary-goto-folder-sticky ()
2176   (interactive)
2177   (wl-summary-goto-folder-subr nil nil nil t t))
2178
2179 (defun wl-summary-goto-last-visited-folder ()
2180   (interactive)
2181   (let ((entity
2182          (wl-folder-search-entity-by-name wl-summary-last-visited-folder
2183                                           wl-folder-entity
2184                                           'folder)))
2185     (if entity (wl-folder-set-current-entity-id
2186                 (wl-folder-get-entity-id entity))))
2187   (wl-summary-goto-folder-subr wl-summary-last-visited-folder nil nil nil t))
2188
2189 (defun wl-summary-sticky-p (&optional folder)
2190   (if folder
2191       (get-buffer (wl-summary-sticky-buffer-name
2192                    (elmo-folder-name-internal folder)))
2193     (not (string= wl-summary-buffer-name (buffer-name)))))
2194
2195 (defun wl-summary-always-sticky-folder-p (folder)
2196   (or (eq t wl-summary-always-sticky-folder-list)
2197       (wl-string-match-member
2198        (elmo-folder-name-internal folder)
2199        wl-summary-always-sticky-folder-list)))
2200
2201 (defun wl-summary-stick (&optional force)
2202   "Make current summary buffer sticky."
2203   (interactive "P")
2204   (if (wl-summary-sticky-p)
2205       (message "Current summary buffer is already sticky.")
2206     (when (or force (y-or-n-p "Stick current summary buffer? "))
2207       (wl-summary-toggle-disp-msg 'off)
2208       (wl-summary-switch-to-clone-buffer
2209        (wl-summary-sticky-buffer-name
2210         (wl-summary-buffer-folder-name)))
2211 ;;; ???hang up
2212 ;;;   (rename-buffer (wl-summary-sticky-buffer-name
2213 ;;;                   (wl-summary-buffer-folder-name))))
2214       (message "Folder `%s' is now sticky." (wl-summary-buffer-folder-name)))))
2215
2216 (defun wl-summary-switch-to-clone-buffer (buffer-name)
2217   (let ((cur-buf (current-buffer))
2218         (msg (wl-summary-message-number))
2219         (buf (get-buffer-create buffer-name))
2220         (folder wl-summary-buffer-elmo-folder)
2221         (copy-variables
2222          (append '(wl-summary-buffer-view
2223                    wl-summary-buffer-temp-mark-list
2224                    wl-summary-buffer-target-mark-list
2225                    wl-summary-buffer-elmo-folder
2226                    wl-summary-buffer-number-column
2227                    wl-summary-buffer-temp-mark-column
2228                    wl-summary-buffer-persistent-mark-column
2229                    wl-summary-buffer-message-modified
2230                    wl-summary-buffer-thread-modified
2231                    wl-summary-buffer-number-list
2232                    wl-summary-buffer-unsync-mark-number-list
2233                    wl-summary-buffer-folder-name
2234                    wl-summary-buffer-line-formatter)
2235                  (and (eq wl-summary-buffer-view 'thread)
2236                       '(wl-thread-entity-hashtb
2237                         wl-thread-entities
2238                         wl-thread-entity-list))
2239                  (and wl-use-scoring
2240                       '(wl-summary-scored
2241                         wl-summary-default-score
2242                         wl-summary-important-above
2243                         wl-summary-target-above
2244                         wl-summary-mark-below
2245                         wl-summary-expunge-below))
2246                  (and (featurep 'wl-score)
2247                       '(wl-current-score-file
2248                         wl-score-alist)))))
2249     (set-buffer buf)
2250     (wl-summary-mode)
2251     (wl-summary-buffer-set-folder folder)
2252     (let ((buffer-read-only nil))
2253       (insert-buffer cur-buf))
2254     (set-buffer-modified-p nil)
2255     (while copy-variables
2256       (set (car copy-variables)
2257            (save-excursion
2258              (set-buffer cur-buf)
2259              (symbol-value (car copy-variables))))
2260       (setq copy-variables (cdr copy-variables)))
2261     (switch-to-buffer buf)
2262     (kill-buffer cur-buf)
2263     (wl-summary-count-unread)
2264     (wl-summary-update-modeline)
2265     (if msg
2266         (if (eq wl-summary-buffer-view 'thread)
2267             (wl-thread-jump-to-msg msg)
2268           (wl-summary-jump-to-msg msg))
2269       (goto-char (point-max))
2270       (beginning-of-line))))
2271
2272 (defun wl-summary-get-buffer (folder)
2273   (or (and folder
2274            (get-buffer (wl-summary-sticky-buffer-name folder)))
2275       (get-buffer wl-summary-buffer-name)))
2276
2277 (defun wl-summary-get-buffer-create (name &optional force-sticky)
2278   (if force-sticky
2279       (get-buffer-create
2280        (wl-summary-sticky-buffer-name name))
2281     (or (get-buffer (wl-summary-sticky-buffer-name name))
2282         (get-buffer-create wl-summary-buffer-name))))
2283
2284 (defun wl-summary-make-number-list ()
2285   (save-excursion
2286     (goto-char (point-min))
2287     (setq wl-summary-buffer-number-list nil)
2288     (while (not (eobp))
2289       (setq wl-summary-buffer-number-list
2290             (cons (wl-summary-message-number)
2291                   wl-summary-buffer-number-list))
2292       (forward-line 1))
2293     (setq wl-summary-buffer-number-list
2294           (nreverse wl-summary-buffer-number-list))))
2295
2296 (defun wl-summary-auto-select-msg-p (unread-msg)
2297   (and unread-msg
2298        (not (elmo-message-has-global-flag-p
2299              wl-summary-buffer-elmo-folder unread-msg))))
2300
2301 (defsubst wl-summary-open-folder (folder)
2302   ;; Select folder
2303   (let ((elmo-mime-charset wl-summary-buffer-mime-charset))
2304     (unwind-protect
2305         (elmo-folder-open folder 'load-msgdb)
2306       ;; For compatibility
2307       (setq wl-summary-buffer-folder-name (elmo-folder-name-internal
2308                                            folder)))))
2309
2310 (defun wl-summary-goto-folder-subr (&optional name scan-type other-window
2311                                               sticky interactive scoring
2312                                               force-exit)
2313   "Display target folder on summary."
2314   (interactive)
2315   (let* ((keep-cursor (memq this-command
2316                             wl-summary-keep-cursor-command))
2317          (name (or name (wl-summary-read-folder wl-default-folder)))
2318          (cur-fld wl-summary-buffer-elmo-folder)
2319          folder buf mes hilit reuse-buf
2320          retval entity)
2321     (if (string= name "")
2322         (setq name wl-default-folder))
2323     (setq folder (wl-folder-get-elmo-folder name))
2324     (when (and (not (string=
2325                      (and cur-fld (elmo-folder-name-internal cur-fld))
2326                      (elmo-folder-name-internal folder))) ; folder is moved.
2327                (eq major-mode 'wl-summary-mode)) ; called in summary.
2328       (setq wl-summary-last-visited-folder (wl-summary-buffer-folder-name))
2329       (run-hooks 'wl-summary-exit-pre-hook)
2330       (if (or force-exit (not (wl-summary-sticky-p)))
2331           (wl-summary-cleanup-temp-marks))
2332       (wl-summary-save-view)
2333       (elmo-folder-commit wl-summary-buffer-elmo-folder)
2334       (if (and (wl-summary-sticky-p) force-exit)
2335           (kill-buffer (current-buffer))))
2336     (setq buf (wl-summary-get-buffer-create (elmo-folder-name-internal folder)
2337                                             sticky))
2338     (setq reuse-buf
2339           (save-excursion
2340             (set-buffer buf)
2341             (string= (elmo-folder-name-internal folder)
2342                      (wl-summary-buffer-folder-name))))
2343     (unwind-protect
2344         (if reuse-buf
2345             (if interactive
2346                 (switch-to-buffer buf)
2347               (set-buffer buf))
2348           (if other-window
2349               (delete-other-windows))
2350           (set-buffer buf)
2351           (unless (eq major-mode 'wl-summary-mode)
2352             (wl-summary-mode))
2353           (wl-summary-buffer-set-folder folder)
2354           (setq wl-summary-buffer-disp-msg nil)
2355           (setq wl-summary-buffer-last-displayed-msg nil)
2356           (setq wl-summary-buffer-current-msg nil)
2357           (let ((inhibit-read-only t)
2358                 (buffer-read-only nil))
2359             (erase-buffer)
2360             ;; Resume summary view
2361             (if wl-summary-cache-use
2362                 (let* ((dir (elmo-folder-msgdb-path folder))
2363                        (cache (expand-file-name wl-summary-cache-file dir))
2364                        (view (expand-file-name wl-summary-view-file dir)))
2365                   (when (file-exists-p cache)
2366                     (insert-file-contents-as-binary cache)
2367                     (set-buffer-multibyte
2368                      default-enable-multibyte-characters)
2369                     (decode-mime-charset-region
2370                      (point-min)(point-max)
2371                      wl-summary-buffer-mime-charset 'LF))
2372                   (if (file-exists-p view)
2373                       (setq wl-summary-buffer-view
2374                             (wl-summary-load-file-object view))
2375                     (setq wl-summary-buffer-view
2376                           (or (wl-get-assoc-list-value
2377                                wl-summary-default-view-alist
2378                                (elmo-folder-name-internal folder))
2379                               wl-summary-default-view)))
2380                   (wl-thread-resume-entity folder)
2381                   (wl-summary-open-folder folder)
2382                   (wl-summary-detect-mark-position))
2383               (setq wl-summary-buffer-view
2384                     (wl-summary-load-file-object
2385                      (expand-file-name wl-summary-view-file
2386                                        (elmo-folder-msgdb-path folder))))
2387               (wl-summary-open-folder folder)
2388               (wl-summary-detect-mark-position)
2389               (wl-summary-rescan))
2390             (wl-summary-count-unread)
2391             (wl-summary-update-modeline)))
2392       (unless (eq wl-summary-buffer-view 'thread)
2393         (wl-summary-make-number-list))
2394       (setq wl-summary-buffer-unsync-mark-number-list
2395             (copy-sequence wl-summary-buffer-number-list))
2396       (when (and wl-summary-cache-use
2397                  (or (and wl-summary-check-line-format
2398                           (wl-summary-line-format-changed-p))
2399                      (wl-summary-view-old-p)))
2400         (wl-summary-rescan))
2401       (wl-summary-toggle-disp-msg (if wl-summary-buffer-disp-msg 'on 'off))
2402       (unless (and reuse-buf keep-cursor)
2403         (unwind-protect
2404             (let ((wl-use-scoring
2405                    (if (or scoring interactive) wl-use-scoring)))
2406               (if (and (not scan-type)
2407                        interactive
2408                        (not wl-ask-range))
2409                   (setq scan-type (wl-summary-get-sync-range folder)))
2410               (cond
2411                ((eq scan-type nil)
2412                 (wl-summary-sync 'unset-cursor))
2413                ((eq scan-type 'all)
2414                 (wl-summary-sync 'unset-cursor "all"))
2415                ((eq scan-type 'no-sync))
2416                ((eq scan-type 'rescan)
2417                 (wl-summary-rescan))
2418                ((or (eq scan-type 'force-update)
2419                     (eq scan-type 'update))
2420                 (setq mes (wl-summary-sync-force-update
2421                            'unset-cursor)))))
2422           (if interactive
2423               (switch-to-buffer buf)
2424             (set-buffer buf))
2425           ;; stick always-sticky-folder
2426           (when (wl-summary-always-sticky-folder-p folder)
2427             (or (wl-summary-sticky-p) (wl-summary-stick t)))
2428           (run-hooks 'wl-summary-prepared-pre-hook)
2429           (set-buffer-modified-p nil)
2430           (goto-char (point-min))
2431           (if (wl-summary-cursor-down t)
2432               (let ((unreadp (wl-summary-next-message
2433                               (wl-summary-message-number)
2434                               'down t)))
2435                 (cond ((and wl-auto-select-first
2436                             (wl-summary-auto-select-msg-p unreadp))
2437                        ;; wl-auto-select-first is non-nil and
2438                        ;; unreadp is non-nil but not flagged
2439                        (setq retval 'disp-msg))
2440                       ((and wl-auto-prefetch-first
2441                             (wl-summary-auto-select-msg-p unreadp))
2442                        ;; wl-auto-select-first is non-nil and
2443                        ;; unreadp is non-nil but not flagged
2444                        (setq retval 'prefetch-msg))
2445                       ((not (wl-summary-auto-select-msg-p unreadp))
2446                        ;; unreadp is nil or flagged
2447                        (setq retval 'more-next))))
2448             (goto-char (point-max))
2449             (if (elmo-folder-plugged-p folder)
2450                 (forward-line -1)
2451               (wl-summary-prev))
2452             (setq retval 'more-next))
2453           (if (and wl-summary-highlight
2454                    (not wl-summary-lazy-highlight)
2455                    (not reuse-buf))
2456               (if (and wl-summary-highlight-partial-threshold
2457                        (> (count-lines (point-min) (point-max))
2458                           wl-summary-highlight-partial-threshold))
2459                   (save-excursion
2460                     (forward-line (-
2461                                    0
2462                                    (or
2463                                     wl-summary-partial-highlight-above-lines
2464                                     wl-summary-highlight-partial-threshold)))
2465                     (wl-highlight-summary (point) (point-max)))
2466                 (wl-highlight-summary (point-min) (point-max))))
2467           (if (eq retval 'disp-msg)
2468               (wl-summary-redisplay))
2469           (if (eq retval 'prefetch-msg)
2470               (wl-message-buffer-prefetch
2471                folder
2472                (wl-summary-message-number)
2473                wl-message-buffer-prefetch-depth
2474                (current-buffer)
2475                wl-summary-buffer-mime-charset))
2476           (if mes (message "%s" mes))
2477           (if (and interactive wl-summary-recenter)
2478               (recenter (/ (- (window-height) 2) 2))))))
2479     ;; set current entity-id
2480     (when (and folder
2481                (setq entity
2482                      (wl-folder-search-entity-by-name
2483                       (elmo-folder-name-internal folder)
2484                       wl-folder-entity
2485                       'folder)))
2486       ;; entity-id is unknown.
2487       (wl-folder-set-current-entity-id
2488        (wl-folder-get-entity-id entity)))
2489     (when (and wl-summary-buffer-window-scroll-functions
2490                wl-on-xemacs)
2491       (sit-for 0))
2492     (unwind-protect
2493         (run-hooks 'wl-summary-prepared-hook)
2494       (set-buffer-modified-p nil))
2495     retval))
2496
2497 (defun wl-summary-goto-previous-message-beginning ()
2498   (end-of-line)
2499   (re-search-backward "\r\\(-?[0-9]+\\)" nil t)
2500   (beginning-of-line))
2501
2502 (defun wl-summary-goto-top-of-current-thread ()
2503   (wl-summary-jump-to-msg
2504    (wl-thread-entity-get-number
2505     (wl-thread-entity-get-top-entity (wl-thread-get-entity
2506                                       (wl-summary-message-number))))))
2507
2508 (defun wl-summary-goto-bottom-of-sub-thread (&optional depth)
2509   (interactive)
2510   (let ((depth (or depth
2511                    (wl-thread-get-depth-of-current-line))))
2512     (forward-line 1)
2513     (while (and (not (eobp))
2514                 (>= (wl-thread-get-depth-of-current-line)
2515                     depth))
2516       (forward-line 1))
2517     (beginning-of-line)))
2518
2519 (defun wl-summary-insert-line (line)
2520   "Insert LINE in the Summary."
2521   (if wl-use-highlight-mouse-line
2522       ;; remove 'mouse-face of current line.
2523       (put-text-property
2524        (save-excursion (beginning-of-line)(point))
2525        (save-excursion (end-of-line)(point))
2526        'mouse-face nil))
2527   (insert line "\n")
2528   (if wl-use-highlight-mouse-line
2529       ;; remove 'mouse-face of current line.
2530       (put-text-property
2531        (save-excursion (beginning-of-line)(point))
2532        (save-excursion (end-of-line)(point))
2533        'mouse-face nil))
2534   (ignore-errors
2535     (run-hooks 'wl-summary-line-inserted-hook)))
2536
2537 (defun wl-summary-insert-sequential (entity folder &rest args)
2538   (when entity
2539     (let ((inhibit-read-only t)
2540           (number (elmo-message-entity-number entity))
2541           buffer-read-only)
2542       (goto-char (point-max))
2543       (wl-summary-insert-line
2544        (wl-summary-create-line entity nil nil
2545                                (elmo-message-flags
2546                                 wl-summary-buffer-elmo-folder
2547                                 number)
2548                                (elmo-message-cached-p
2549                                 wl-summary-buffer-elmo-folder
2550                                 number)))
2551       (setq wl-summary-buffer-number-list
2552             (wl-append wl-summary-buffer-number-list
2553                        (list (elmo-message-entity-number entity))))
2554       nil)))
2555
2556 (defun wl-summary-default-subject-filter (subject)
2557   (setq subject (elmo-replace-in-string subject "[ \t]*\\(re\\|was\\)[:>]" ""))
2558   (setq subject (elmo-replace-in-string subject "[ \t]" ""))
2559   (elmo-replace-in-string subject "^\\[.*\\]" ""))
2560
2561 (defun wl-summary-subject-equal (subject1 subject2)
2562   (string= (funcall wl-summary-subject-filter-function subject1)
2563            (funcall wl-summary-subject-filter-function subject2)))
2564
2565 (defmacro wl-summary-put-alike (alike)
2566   (` (elmo-set-hash-val (format "#%d" (wl-count-lines))
2567                         (, alike)
2568                         wl-summary-alike-hashtb)))
2569
2570 (defmacro wl-summary-get-alike ()
2571   (` (elmo-get-hash-val (format "#%d" (wl-count-lines))
2572                         wl-summary-alike-hashtb)))
2573
2574 (defun wl-summary-insert-headers (folder func mime-decode)
2575   (let ((numbers (elmo-folder-list-messages folder 'visible t))
2576         ov this last alike)
2577     (buffer-disable-undo (current-buffer))
2578     (make-local-variable 'wl-summary-alike-hashtb)
2579     (setq wl-summary-alike-hashtb (elmo-make-hash (* (length numbers) 2)))
2580     (when mime-decode
2581       (set-buffer-multibyte default-enable-multibyte-characters))
2582     (while (setq ov (elmo-message-entity folder (pop numbers)))
2583       (setq this (funcall func ov))
2584       (and this (setq this (std11-unfold-string this)))
2585       (if (equal last this)
2586           (setq alike (cons ov alike))
2587         (when last
2588           (wl-summary-put-alike alike)
2589           (insert last ?\n))
2590         (setq alike (list ov)
2591               last this)))
2592     (when last
2593       (wl-summary-put-alike alike)
2594       (insert last ?\n))
2595     (when mime-decode
2596       (decode-mime-charset-region (point-min) (point-max)
2597                                   elmo-mime-charset)
2598       (when (eq mime-decode 'mime)
2599         (eword-decode-region (point-min) (point-max))))
2600     (run-hooks 'wl-summary-insert-headers-hook)))
2601
2602 (defun wl-summary-search-by-subject (entity folder)
2603   (let ((summary-buf (current-buffer))
2604         (buf (get-buffer-create wl-summary-search-buf-name))
2605         (folder-name (wl-summary-buffer-folder-name))
2606         match founds result)
2607     (with-current-buffer buf
2608       (let ((case-fold-search t))
2609         (when (or (not (string= wl-summary-search-buf-folder-name folder-name))
2610                   (zerop (buffer-size)))
2611           (setq wl-summary-search-buf-folder-name folder-name)
2612           (message "Creating subject cache...")
2613           (wl-summary-insert-headers
2614            folder
2615            (function
2616             (lambda (x)
2617               (funcall wl-summary-subject-filter-function
2618                        (elmo-message-entity-field x 'subject))))
2619            t)
2620           (message "Creating subject cache...done"))
2621         (setq match (funcall wl-summary-subject-filter-function
2622                              (elmo-message-entity-field entity 'subject
2623                                                         'decode)))
2624         (if (string= match "")
2625             (setq match "\n"))
2626         (goto-char (point-max))
2627         (while (and (null result)
2628                     (not (= (point) (point-min)))
2629                     (search-backward match nil t))
2630           ;; check exactly match
2631           (when (and (bolp) (= (point-at-eol)(match-end 0)))
2632             (setq founds (wl-summary-get-alike))
2633             (with-current-buffer summary-buf
2634               (while founds
2635                 (when (and
2636                        ;; the first element of found-entity list exists on
2637                        ;; thread tree.
2638                        (wl-thread-get-entity
2639                         (elmo-message-entity-number (car founds)))
2640                        ;; message id is not same as myself.
2641                        (not (string=
2642                              (elmo-message-entity-field entity 'message-id)
2643                              (elmo-message-entity-field (car founds)
2644                                                         'message-id)))
2645                        ;; not a descendant.
2646                        (not (wl-thread-descendant-p
2647                              (elmo-message-entity-number entity)
2648                              (elmo-message-entity-number (car founds)))))
2649                   (setq result (car founds)
2650                         founds nil))
2651                 (setq founds (cdr founds))))))
2652         result))))
2653
2654 (defun wl-summary-insert-thread (entity folder update
2655                                         &optional force-insert)
2656   (let ((depth 0)
2657         this-id parent-entity parent-number
2658         number cur-entity linked retval delayed-entity
2659         update-list entity-stack thread-entity)
2660     (while entity
2661       (setq this-id (elmo-message-entity-field entity 'message-id)
2662             number (elmo-message-entity-number entity))
2663       (if (and wl-thread-saved-entity-hashtb-internal
2664                (setq thread-entity
2665                      (elmo-get-hash-val
2666                       (format "#%d" (elmo-message-entity-number entity))
2667                       wl-thread-saved-entity-hashtb-internal)))
2668           (setq parent-entity
2669                 (elmo-message-entity
2670                  folder
2671                  (wl-thread-entity-get-parent thread-entity))
2672                 linked (wl-thread-entity-get-linked thread-entity))
2673         (setq parent-entity (elmo-message-entity-parent folder entity)
2674               linked nil))
2675       (setq parent-number (and parent-entity
2676                                (elmo-message-entity-number parent-entity)))
2677       ;; If thread loop detected, set parent as nil.
2678       (let ((cur entity)
2679             anumber relatives)
2680         (while cur
2681           (when (setq anumber
2682                       (elmo-message-entity-number
2683                        (setq cur (elmo-message-entity-parent folder cur))))
2684             (if (memq anumber relatives)
2685                 (setq parent-number nil
2686                       cur nil))
2687             (setq relatives (cons anumber relatives)))))
2688       (if (and parent-number
2689                (not (wl-thread-get-entity parent-number))
2690                (not force-insert))
2691           ;; parent exists in overview, but not in wl-thread-entities
2692           (progn
2693             (wl-append wl-summary-delayed-update
2694                        (list (cons parent-number entity)))
2695             (setq entity nil)) ;; exit loop
2696         ;; Search parent by subject.
2697         (when (and (null parent-number)
2698                    wl-summary-search-parent-by-subject-regexp
2699                    (string-match
2700                     wl-summary-search-parent-by-subject-regexp
2701                     (elmo-message-entity-field entity 'subject)))
2702           (let ((found (wl-summary-search-by-subject entity folder)))
2703             (when (and found
2704                        (not (member found wl-summary-delayed-update)))
2705               (setq parent-entity found)
2706               (setq parent-number
2707                     (elmo-message-entity-number parent-entity))
2708               (setq linked t))))
2709         ;; If subject is change, divide thread.
2710         (if (and parent-number
2711                  wl-summary-divide-thread-when-subject-changed
2712                  (not (wl-summary-subject-equal
2713                        (or (elmo-message-entity-field entity
2714                                                       'subject t) "")
2715                        (or (elmo-message-entity-field parent-entity
2716                                                       'subject t) ""))))
2717             (setq parent-number nil))
2718         (setq retval
2719               (wl-thread-insert-message entity
2720                                         number parent-number update linked))
2721         (and retval
2722              (wl-append update-list (list retval)))
2723         (setq entity nil) ; exit loop
2724         (while (setq delayed-entity (assq number wl-summary-delayed-update))
2725           (setq wl-summary-delayed-update
2726                 (delq delayed-entity wl-summary-delayed-update))
2727           ;; update delayed message
2728           (wl-append entity-stack (list (cdr delayed-entity)))))
2729       (if (and (not entity)
2730                entity-stack)
2731           (setq entity (pop entity-stack))))
2732     update-list))
2733
2734 (defun wl-summary-update-thread (entity
2735                                  thr-entity
2736                                  parent-entity)
2737   (let* ((this-id (elmo-message-entity-field entity 'message-id))
2738          (overview-entity entity)
2739          (parent-id (elmo-message-entity-field parent-entity 'message-id))
2740          (number (elmo-message-entity-number entity))
2741          (parent-number (elmo-message-entity-number parent-entity))
2742          insert-line)
2743     (cond
2744      ((or (not parent-id)
2745           (string= this-id parent-id))
2746       (goto-char (point-max))
2747       (beginning-of-line)
2748       (setq insert-line t))
2749      ;; parent already exists in buffer.
2750      ((wl-summary-jump-to-msg parent-number)
2751       (wl-thread-goto-bottom-of-sub-thread)
2752       (setq insert-line t)))
2753     (when insert-line
2754       (let (buffer-read-only)
2755         (wl-summary-insert-line
2756          (wl-summary-create-line
2757           entity
2758           parent-entity
2759           nil
2760           (elmo-message-flags wl-summary-buffer-elmo-folder number)
2761           (elmo-message-cached-p wl-summary-buffer-elmo-folder number)
2762           (wl-thread-maybe-get-children-num number)
2763           (wl-thread-make-indent-string thr-entity)
2764           (wl-thread-entity-get-linked thr-entity)))))))
2765
2766 (defun wl-summary-target-mark-msgs (msgs)
2767   "Return the number of marked messages."
2768   (let ((i 0))
2769     (dolist (number msgs)
2770       (when (wl-summary-target-mark number)
2771         (setq i (1+ i))))
2772     i))
2773
2774 (defun wl-summary-pick (&optional from-list delete-marks)
2775   (interactive)
2776   (save-excursion
2777     (let* ((condition (car (elmo-parse-search-condition
2778                             (elmo-read-search-condition
2779                              wl-summary-pick-field-default))))
2780            (result (elmo-folder-search wl-summary-buffer-elmo-folder
2781                                        condition
2782                                        from-list))
2783            num)
2784       (if delete-marks
2785           (let ((mlist wl-summary-buffer-target-mark-list))
2786             (while mlist
2787               (when (wl-summary-jump-to-msg (car mlist))
2788                 (wl-summary-unmark))
2789               (setq mlist (cdr mlist)))
2790             (setq wl-summary-buffer-target-mark-list nil)))
2791       (if (and result
2792                (setq num (wl-summary-target-mark-msgs result))
2793                (> num 0))
2794           (if (= num (length result))
2795               (message "%d message(s) are picked." num)
2796             (message "%d(%d) message(s) are picked." num
2797                      (- (length result) num)))
2798         (message "No message was picked.")))))
2799
2800 (defun wl-summary-unvirtual ()
2801   "Exit from current virtual folder."
2802   (interactive)
2803   (if (eq 'filter
2804           (elmo-folder-type-internal wl-summary-buffer-elmo-folder))
2805       (wl-summary-goto-folder-subr
2806        (elmo-folder-name-internal
2807         (elmo-filter-folder-target-internal
2808          wl-summary-buffer-elmo-folder))
2809        'update nil nil t)
2810     (error "This folder is not filtered")))
2811
2812 (defun wl-summary-virtual (&optional arg)
2813   "Goto virtual folder.
2814 If ARG, exit virtual folder."
2815   (interactive "P")
2816   (if arg
2817       (wl-summary-unvirtual)
2818     (wl-summary-goto-folder-subr (concat "/"
2819                                          (elmo-read-search-condition
2820                                           wl-summary-pick-field-default)
2821                                          "/"
2822                                          (wl-summary-buffer-folder-name))
2823                                  'update nil nil t)
2824     (run-hooks 'wl-summary-virtual-hook)))
2825
2826 (defun wl-summary-delete-all-temp-marks (&optional no-msg force)
2827   "Erase all temp marks from buffer."
2828   (interactive)
2829   (when (or wl-summary-buffer-target-mark-list
2830             wl-summary-buffer-temp-mark-list
2831             wl-summary-scored)
2832     (save-excursion
2833       (goto-char (point-min))
2834       (unless no-msg
2835         (message "Unmarking..."))
2836       (while (not (eobp))
2837         (wl-summary-unset-mark nil nil force)
2838         (forward-line 1))
2839       (unless no-msg
2840         (message "Unmarking...done"))
2841       (setq wl-summary-buffer-target-mark-list nil)
2842       (setq wl-summary-buffer-temp-mark-list nil))))
2843
2844 (defsubst wl-summary-temp-mark (&optional number)
2845   "Return temp-mark string of current line."
2846   (let ((number (or number (wl-summary-message-number)))
2847         info)
2848     (or (and (wl-summary-have-target-mark-p number)
2849              "*")
2850         (and (setq info (wl-summary-registered-temp-mark number))
2851              (nth 1 info))
2852         (wl-summary-get-score-mark number)
2853         " ")))
2854
2855 (defsubst wl-summary-persistent-mark-string (folder flags cached)
2856   "Return the persistent mark string.
2857 The mark is decided according to the FOLDER, FLAGS and CACHED."
2858   (let ((priorities wl-summary-persistent-mark-priority-list)
2859         mark)
2860     (while (and (null mark) priorities)
2861       (if (and (eq (car priorities) 'flag)
2862                (elmo-get-global-flags flags 'ignore-preserved))
2863           (let ((specs wl-summary-flag-alist)
2864                 spec)
2865             (while (setq spec (car specs))
2866               (if (memq (car spec) flags)
2867                   (setq mark (or (nth 2 spec) wl-summary-flag-mark)
2868                         specs nil)
2869                 (setq specs (cdr specs))))
2870             (unless mark
2871               (setq mark wl-summary-flag-mark)))
2872         (when (memq (car priorities) flags)
2873           (setq mark
2874                 (or (case (car priorities)
2875                       (new
2876                        (if cached
2877                            wl-summary-new-cached-mark
2878                          wl-summary-new-uncached-mark))
2879                       (answered
2880                        (if cached
2881                            wl-summary-answered-cached-mark
2882                          wl-summary-answered-uncached-mark))
2883                       (unread
2884                        (if cached
2885                            wl-summary-unread-cached-mark
2886                          wl-summary-unread-uncached-mark)))))))
2887       (setq priorities (cdr priorities)))
2888     (or mark
2889         (if (or cached (elmo-folder-local-p folder))
2890             nil
2891           wl-summary-read-uncached-mark))))
2892
2893 (defsubst wl-summary-message-mark (folder number &optional flags)
2894   "Return mark of the message."
2895   (ignore-errors
2896     (wl-summary-persistent-mark-string
2897      folder
2898      (or flags (setq flags (elmo-message-flags folder number)))
2899      (memq 'cached flags) ; XXX for speed-up.
2900      )))
2901
2902 (defsubst wl-summary-persistent-mark (&optional number flags)
2903   "Return persistent-mark string of current line."
2904   (or (wl-summary-message-mark wl-summary-buffer-elmo-folder
2905                                (or number (wl-summary-message-number))
2906                                flags)
2907       " "))
2908
2909 (defun wl-summary-put-temp-mark (mark)
2910   "Put temp MARK on current line."
2911   (when wl-summary-buffer-temp-mark-column
2912     (save-excursion
2913       (beginning-of-line)
2914       (let ((inhibit-read-only t)
2915             (buffer-read-only nil))
2916         (move-to-column wl-summary-buffer-temp-mark-column)
2917         (delete-backward-char 1)
2918         (insert mark)))))
2919
2920 (defun wl-summary-next-buffer ()
2921   "Switch to next summary buffer."
2922   (interactive)
2923   (let ((buffers (sort (wl-collect-summary)
2924                        (lambda (buffer1 buffer2)
2925                          (string-lessp (buffer-name buffer1)
2926                                        (buffer-name buffer2))))))
2927     (switch-to-buffer
2928      (or (cadr (memq (current-buffer) buffers))
2929          (car buffers)))))
2930
2931 (defun wl-summary-previous-buffer ()
2932   "Switch to previous summary buffer."
2933   (interactive)
2934   (let ((buffers (sort (wl-collect-summary)
2935                        (lambda (buffer1 buffer2)
2936                          (not (string-lessp (buffer-name buffer1)
2937                                             (buffer-name buffer2)))))))
2938     (switch-to-buffer
2939      (or (cadr (memq (current-buffer) buffers))
2940          (car buffers)))))
2941
2942 (defun wl-summary-target-mark-mark-as-read ()
2943   (interactive)
2944   (save-excursion
2945     (goto-char (point-min))
2946     (let ((inhibit-read-only t)
2947           (buffer-read-only nil)
2948           wl-summary-buffer-disp-msg)
2949       (wl-summary-mark-as-read wl-summary-buffer-target-mark-list)
2950       (dolist (number wl-summary-buffer-target-mark-list)
2951         (wl-summary-unset-mark number)))))
2952
2953 (defun wl-summary-target-mark-mark-as-unread ()
2954   (interactive)
2955   (save-excursion
2956     (goto-char (point-min))
2957     (let ((inhibit-read-only t)
2958           (buffer-read-only nil)
2959           wl-summary-buffer-disp-msg)
2960       (wl-summary-mark-as-unread wl-summary-buffer-target-mark-list)
2961       (dolist (number wl-summary-buffer-target-mark-list)
2962         (wl-summary-unset-mark number)))))
2963
2964 (defun wl-summary-target-mark-operation (flag)
2965   (save-excursion
2966     (goto-char (point-min))
2967     (let ((inhibit-read-only t)
2968           (buffer-read-only nil)
2969           wl-summary-buffer-disp-msg)
2970       (funcall
2971        (intern (format "wl-summary-mark-as-%s-internal" flag))
2972        nil
2973        wl-summary-buffer-target-mark-list)
2974       (dolist (number wl-summary-buffer-target-mark-list)
2975         (wl-summary-unset-mark number)))))
2976
2977 (defun wl-summary-target-mark-mark-as-important ()
2978   (interactive)
2979   (wl-summary-target-mark-operation 'important))
2980
2981 (defun wl-summary-target-mark-mark-as-answered ()
2982   (interactive)
2983   (wl-summary-target-mark-operation 'answered))
2984
2985 (defun wl-summary-target-mark-set-flags ()
2986   (interactive)
2987   (save-excursion
2988     (goto-char (point-min))
2989     (let ((inhibit-read-only t)
2990           (buffer-read-only nil)
2991           wl-summary-buffer-disp-msg
2992           flags)
2993       (dolist (number wl-summary-buffer-target-mark-list)
2994         (wl-summary-unset-mark number)
2995         (setq flags (wl-summary-set-flags-internal number flags)))
2996       (wl-summary-count-unread)
2997       (wl-summary-update-modeline))))
2998
2999 (defun wl-summary-target-mark-save ()
3000   (interactive)
3001   (let ((wl-save-dir
3002          (wl-read-directory-name "Save to directory: "
3003                                  wl-temporary-file-directory))
3004         number)
3005     (if (null (file-exists-p wl-save-dir))
3006         (make-directory wl-save-dir))
3007     (while (setq number (car wl-summary-buffer-target-mark-list))
3008       (wl-thread-jump-to-msg number)
3009       (wl-summary-save t wl-save-dir)
3010       (wl-summary-unmark))))
3011
3012 (defun wl-summary-target-mark-pick ()
3013   (interactive)
3014   (wl-summary-pick wl-summary-buffer-target-mark-list 'delete))
3015
3016 (defun wl-summary-update-persistent-mark (&optional number flags)
3017   "Synch up persistent mark of current line with msgdb's.
3018 Return non-nil if the mark is updated"
3019   (prog1
3020       (when wl-summary-buffer-persistent-mark-column
3021         (save-excursion
3022           (move-to-column wl-summary-buffer-persistent-mark-column)
3023           (let ((inhibit-read-only t)
3024                 (buffer-read-only nil)
3025                 (mark (buffer-substring (- (point) 1) (point)))
3026                 (new-mark (wl-summary-persistent-mark number flags)))
3027             (unless (string= new-mark mark)
3028               (delete-backward-char 1)
3029               (insert new-mark)
3030               (wl-summary-set-message-modified)
3031               t))))
3032     (when wl-summary-highlight
3033       (wl-highlight-summary-current-line))
3034     (set-buffer-modified-p nil)))
3035
3036 (defsubst wl-summary-mark-as-read-internal (inverse
3037                                             number-or-numbers
3038                                             no-folder-mark
3039                                             no-modeline-update)
3040   (save-excursion
3041     (let ((folder wl-summary-buffer-elmo-folder)
3042           unread-message number
3043           number-list visible)
3044       (setq number-list (cond ((numberp number-or-numbers)
3045                                (setq unread-message
3046                                      (elmo-message-flagged-p
3047                                       folder
3048                                       number-or-numbers
3049                                       'unread))
3050                                (list number-or-numbers))
3051                               ((and (not (null number-or-numbers))
3052                                     (listp number-or-numbers))
3053                                number-or-numbers)
3054                               ((setq number (wl-summary-message-number))
3055                                ;; interactive
3056                                (setq unread-message
3057                                      (elmo-message-flagged-p
3058                                       folder
3059                                       number
3060                                       'unread))
3061                                (list number))))
3062       (if (null number-list)
3063           (message "No message.")
3064         (if inverse
3065             (elmo-folder-unset-flag folder number-list 'read no-folder-mark)
3066           (elmo-folder-set-flag folder number-list 'read no-folder-mark))
3067         (dolist (number number-list)
3068           (setq visible (wl-summary-jump-to-msg number))
3069           (unless inverse
3070             (when unread-message
3071               (run-hooks 'wl-summary-unread-message-hook)))
3072           ;; set mark on buffer
3073           (when visible
3074             (wl-summary-update-persistent-mark)))
3075         (unless no-modeline-update
3076           ;; Update unread numbers.
3077           (wl-summary-count-unread)
3078           (wl-summary-update-modeline)
3079           (wl-folder-update-unread
3080            (wl-summary-buffer-folder-name)
3081            (+ wl-summary-buffer-unread-count
3082               wl-summary-buffer-new-count)))))))
3083
3084 (defun wl-summary-mark-as-read (&optional number-or-numbers
3085                                           no-folder-mark
3086                                           no-modeline-update)
3087   (interactive)
3088   (wl-summary-mark-as-read-internal nil
3089                                     number-or-numbers
3090                                     no-folder-mark
3091                                     no-modeline-update))
3092
3093 (defun wl-summary-mark-as-unread (&optional number-or-numbers
3094                                             no-folder-mark
3095                                             no-modeline-update)
3096   (interactive)
3097   (wl-summary-mark-as-read-internal 'inverse
3098                                     number-or-numbers
3099                                     no-folder-mark
3100                                     no-modeline-update))
3101
3102 (defsubst wl-summary-mark-as-answered-internal (inverse
3103                                                 &optional
3104                                                 number-or-numbers
3105                                                 no-modeline-update)
3106   (save-excursion
3107     (let ((folder wl-summary-buffer-elmo-folder)
3108           number number-list visible)
3109       (setq number-list (cond ((numberp number-or-numbers)
3110                                (list number-or-numbers))
3111                               ((and (not (null number-or-numbers))
3112                                     (listp number-or-numbers))
3113                                number-or-numbers)
3114                               ((setq number (wl-summary-message-number))
3115                                ;; interactive
3116                                (list number))))
3117       (if (null number-list)
3118           (message "No message.")
3119         (if inverse
3120             (elmo-folder-unset-flag folder number-list 'answered)
3121           (elmo-folder-set-flag folder number-list 'answered))
3122         (dolist (number number-list)
3123           (setq visible (wl-summary-jump-to-msg number))
3124           ;; set mark on buffer
3125           (when visible
3126             (wl-summary-update-persistent-mark)))
3127         (unless no-modeline-update
3128           ;; Update unread numbers.
3129           ;; should elmo-flag-mark-as-read return unread numbers?
3130           (wl-summary-count-unread)
3131           (wl-summary-update-modeline)
3132           (wl-folder-update-unread
3133            (wl-summary-buffer-folder-name)
3134            (+ wl-summary-buffer-unread-count
3135               wl-summary-buffer-new-count)))))))
3136
3137 (defun wl-summary-mark-as-answered (&optional number-or-numbers
3138                                               no-modeline-update)
3139   (interactive)
3140   (wl-summary-mark-as-answered-internal
3141    (and (interactive-p)
3142         (elmo-message-flagged-p wl-summary-buffer-elmo-folder
3143                                 (wl-summary-message-number)
3144                                 'answered))
3145    number-or-numbers
3146    no-modeline-update))
3147
3148 (defun wl-summary-mark-as-unanswered (&optional number-or-numbers
3149                                                 no-modeline-update)
3150   (wl-summary-mark-as-answered-internal 'inverse
3151                                         number-or-numbers
3152                                         no-modeline-update))
3153
3154 (defun wl-summary-decide-flag (folder number)
3155   (let ((flags (elmo-get-global-flags (elmo-message-flags
3156                                        folder number)))
3157         (completion-ignore-case t)
3158         new-flags)
3159     (setq new-flags
3160           (delq nil
3161                 (mapcar
3162                  (lambda (flag)
3163                    (and (> (length flag) 0)
3164                         (intern (downcase flag))))
3165                  (wl-completing-read-multiple
3166                   "Flags: "
3167                   (mapcar (lambda (flag)
3168                             (list (capitalize (symbol-name flag))))
3169                           elmo-global-flag-list)
3170                   nil nil (mapconcat (lambda (flag)
3171                                        (capitalize (symbol-name flag)))
3172                                      flags
3173                                      ",")))))
3174     (dolist (flag new-flags)
3175       (unless (memq flag elmo-global-flag-list)
3176         (if (y-or-n-p (format "Flag `%s' does not exist yet. Create?"
3177                               (capitalize (symbol-name flag))))
3178             (setq elmo-global-flag-list (append
3179                                          elmo-global-flag-list
3180                                          (list flag)))
3181           (error "Stopped"))))
3182     new-flags))
3183
3184 (defsubst wl-summary-set-flags-internal (&optional
3185                                         number-or-numbers
3186                                         flags
3187                                         local
3188                                         remove-all)
3189   (save-excursion
3190     (let ((folder wl-summary-buffer-elmo-folder)
3191           number number-list visible)
3192       (setq number-list (cond ((numberp number-or-numbers)
3193                                (list number-or-numbers))
3194                               ((and (not (null number-or-numbers))
3195                                     (listp number-or-numbers))
3196                                number-or-numbers)
3197                               ((setq number (wl-summary-message-number))
3198                                ;; interactive
3199                                (list number))))
3200       (if remove-all
3201           (setq flags nil)
3202         (unless flags
3203           (setq flags (wl-summary-decide-flag folder (car number-list)))))
3204       (if (null number-list)
3205           (message "No message.")
3206         (dolist (number number-list)
3207           (elmo-message-set-global-flags folder number flags local)
3208           (setq visible (wl-summary-jump-to-msg number))
3209           ;; set mark on buffer
3210           (when visible
3211             (wl-summary-update-persistent-mark))))
3212       flags)))
3213
3214 (defsubst wl-summary-add-flags-internal (&optional
3215                                          number-or-numbers
3216                                          flags
3217                                          local)
3218   (save-excursion
3219     (let ((folder wl-summary-buffer-elmo-folder)
3220           set-flags msg number-list visible)
3221       (setq number-list (cond ((numberp number-or-numbers)
3222                                (list number-or-numbers))
3223                               ((and (not (null number-or-numbers))
3224                                     (listp number-or-numbers))
3225                                number-or-numbers)
3226                               ((setq msg (wl-summary-message-number))
3227                                ;; interactive
3228                                (list msg))))
3229       (if (null number-list)
3230           (message "No message.")
3231         (dolist (number number-list)
3232           (setq set-flags
3233                 (elmo-get-global-flags
3234                  (elmo-message-flags folder number)))
3235           (setq set-flags (nconc flags set-flags))
3236           (elmo-message-set-global-flags folder number set-flags local)
3237           (setq visible (wl-summary-jump-to-msg number))
3238           ;; set mark on buffer
3239           (when visible
3240             (wl-summary-update-persistent-mark)))))))
3241
3242 (defsubst wl-summary-remove-flags-internal (&optional
3243                                             number-or-numbers
3244                                             flags
3245                                             local)
3246   (save-excursion
3247     (let ((folder wl-summary-buffer-elmo-folder)
3248           set-flags msg number-list visible)
3249       (setq number-list (cond ((numberp number-or-numbers)
3250                                (list number-or-numbers))
3251                               ((and (not (null number-or-numbers))
3252                                     (listp number-or-numbers))
3253                                number-or-numbers)
3254                               ((setq msg (wl-summary-message-number))
3255                                ;; interactive
3256                                (list msg))))
3257       (if (null number-list)
3258           (message "No message.")
3259         (dolist (number number-list)
3260           (setq set-flags (elmo-get-global-flags
3261                            (elmo-message-flags folder number)))
3262           (dolist (flag flags)
3263             (setq set-flags (delq flag set-flags)))
3264           (elmo-message-set-global-flags folder number set-flags local)
3265           (setq visible (wl-summary-jump-to-msg number))
3266           ;; set mark on buffer
3267           (when visible
3268             (wl-summary-update-persistent-mark)))))))
3269
3270 (defun wl-summary-set-flags (&optional remove)
3271   (interactive "P")
3272   (if (eq 'flag (elmo-folder-type-internal wl-summary-buffer-elmo-folder))
3273       (error "Cannot process flags in this folder"))
3274   (wl-summary-set-flags-internal nil nil nil remove))
3275
3276 (defun wl-summary-mark-as-important-internal (inverse
3277                                               &optional number-or-numbers)
3278   (if inverse
3279       (wl-summary-remove-flags-internal number-or-numbers '(important))
3280     (wl-summary-add-flags-internal number-or-numbers '(important))))
3281
3282 (defun wl-summary-mark-as-important (&optional prompt)
3283   (interactive "P")
3284   (if (eq 'flag (elmo-folder-type-internal wl-summary-buffer-elmo-folder))
3285       (error "Cannot process flags in this folder"))
3286   (if prompt
3287       (wl-summary-set-flags-internal)
3288     (wl-summary-mark-as-important-internal
3289      (and (interactive-p)
3290           (elmo-message-flagged-p wl-summary-buffer-elmo-folder
3291                                   (wl-summary-message-number)
3292                                   'important)))))
3293
3294 ;;; Summary line.
3295 (defvar wl-summary-line-formatter nil)
3296
3297 (defun wl-summary-view-old-p ()
3298   "Return non-nil when summary view cache has old format."
3299   (save-excursion
3300     (goto-char (point-min))
3301     (and wl-summary-buffer-number-list
3302          (not (re-search-forward "\r-?[0-9]+" (point-at-eol) t)))))
3303
3304 (defun wl-summary-line-format-changed-p ()
3305   "Return non-nil when summary line format is changed."
3306   (not (string=
3307         wl-summary-buffer-line-format
3308         (or (elmo-object-load (expand-file-name
3309                                wl-summary-line-format-file
3310                                (elmo-folder-msgdb-path
3311                                 wl-summary-buffer-elmo-folder))
3312                               wl-summary-buffer-mime-charset)
3313             wl-summary-buffer-line-format))))
3314
3315 (defun wl-summary-line-format-save ()
3316   "Save current summary line format."
3317   (elmo-object-save
3318    (expand-file-name wl-summary-line-format-file
3319                      (elmo-folder-msgdb-path
3320                       wl-summary-buffer-elmo-folder))
3321    wl-summary-buffer-line-format
3322    wl-summary-buffer-mime-charset))
3323
3324 (defun wl-summary-line-number ()
3325   (wl-set-string-width
3326    (- wl-summary-buffer-number-column)
3327    (number-to-string
3328     (elmo-message-entity-number wl-message-entity))))
3329
3330 (defun wl-summary-line-year ()
3331   (aref wl-datevec 0))
3332 (defun wl-summary-line-month ()
3333   (format "%02d" (aref wl-datevec 1)))
3334 (defun wl-summary-line-day ()
3335   (format "%02d" (aref wl-datevec 2)))
3336 (defun wl-summary-line-day-of-week ()
3337   (condition-case nil
3338       (elmo-date-get-week (aref wl-datevec 0)
3339                           (aref wl-datevec 1)
3340                           (aref wl-datevec 2))
3341     (error "??")))
3342 (defun wl-summary-line-hour ()
3343   (format "%02d" (aref wl-datevec 3)))
3344 (defun wl-summary-line-minute ()
3345   (format "%02d" (aref wl-datevec 4)))
3346
3347 (defun wl-summary-line-size ()
3348   (let ((size (elmo-message-entity-field wl-message-entity 'size)))
3349     (if size
3350         (cond
3351          ((<= 1 (/ size 1048576))
3352           (format "%.0fM" (/ size 1048576.0)))
3353          ((<= 1 (/ size 1024))
3354           (format "%.0fK" (/ size 1024.0)))
3355          (t (format "%dB" size)))
3356       "")))
3357
3358 (defun wl-summary-line-subject ()
3359   (let (no-parent subject parent-raw-subject parent-subject)
3360     (if (string= wl-thr-indent-string "")
3361         (setq no-parent t)) ; no parent
3362     (setq subject
3363           (elmo-delete-char ?\n
3364                             (or (elmo-message-entity-field
3365                                  wl-message-entity
3366                                  'subject t)
3367                                 wl-summary-no-subject-message)))
3368     (setq parent-raw-subject
3369           (elmo-message-entity-field wl-parent-message-entity
3370                                      'subject t))
3371     (setq parent-subject
3372           (if parent-raw-subject
3373               (elmo-delete-char ?\n parent-raw-subject)))
3374     (if (or no-parent
3375             (null parent-subject)
3376             (not (wl-summary-subject-equal
3377                   subject parent-subject)))
3378         (funcall wl-summary-subject-function subject)
3379       "")))
3380
3381 (defun wl-summary-line-from ()
3382   (elmo-delete-char ?\n
3383                     (funcall wl-summary-from-function
3384                              (elmo-message-entity-field
3385                               wl-message-entity
3386                               'from t))))
3387
3388 (defun wl-summary-line-list-info ()
3389   (let ((list-info (wl-summary-get-list-info wl-message-entity)))
3390     (if (car list-info)
3391         (format (if (cdr list-info) "(%s %05.0f)" "(%s)")
3392                 (car list-info) (cdr list-info))
3393       "")))
3394
3395 (defun wl-summary-line-list-count ()
3396   (let ((ml-count (cdr (wl-summary-get-list-info wl-message-entity))))
3397     (if ml-count
3398         (format "%.0f" ml-count)
3399       "")))
3400
3401 (defun wl-summary-line-attached ()
3402   (let ((content-type (elmo-message-entity-field
3403                        wl-message-entity 'content-type))
3404         (case-fold-search t))
3405     (if (and content-type
3406              (string-match "multipart/mixed" content-type))
3407         "@"
3408       "")))
3409
3410 ;;; For future use.
3411 ;;(defun wl-summary-line-cached ()
3412 ;;  (if (elmo-message-cached-p wl-summary-buffer-elmo-folder
3413 ;;                           (elmo-message-entity-number wl-message-entity))
3414 ;;      " "
3415 ;;    "u"))
3416
3417 (defun wl-summary-create-line (wl-message-entity
3418                                wl-parent-message-entity
3419                                wl-temp-mark
3420                                wl-flags
3421                                wl-cached
3422                                &optional
3423                                wl-thr-children-number
3424                                wl-thr-indent-string
3425                                wl-thr-linked)
3426   "Create a summary line."
3427   (let ((wl-mime-charset wl-summary-buffer-mime-charset)
3428         (wl-persistent-mark (wl-summary-persistent-mark-string
3429                              wl-summary-buffer-elmo-folder
3430                              wl-flags
3431                              wl-cached))
3432         (elmo-mime-charset wl-summary-buffer-mime-charset)
3433         (elmo-lang wl-summary-buffer-weekday-name-lang)
3434         (wl-datevec (or (ignore-errors (timezone-fix-time
3435                                         (elmo-message-entity-field
3436                                          wl-message-entity
3437                                          'date)
3438                                         nil
3439                                         wl-summary-fix-timezone))
3440                         (make-vector 5 0)))
3441         (entity wl-message-entity) ; backward compatibility.
3442         line mark)
3443     (if (and wl-thr-indent-string
3444              wl-summary-indent-length-limit
3445              (< wl-summary-indent-length-limit
3446                 (string-width wl-thr-indent-string)))
3447         (setq wl-thr-indent-string (wl-set-string-width
3448                                     wl-summary-indent-length-limit
3449                                     wl-thr-indent-string)))
3450     (setq line (funcall wl-summary-buffer-line-formatter))
3451     (if wl-summary-width (setq line
3452                                (wl-set-string-width
3453                                 (- wl-summary-width 1) line nil
3454                                 'ignore-invalid)))
3455     (setq line (concat line
3456                        "\r"
3457                        (number-to-string
3458                         (elmo-message-entity-number
3459                          wl-message-entity))))
3460     (if wl-summary-highlight
3461         (wl-highlight-summary-line-string
3462          (elmo-message-entity-number wl-message-entity)
3463          line
3464          wl-flags
3465          wl-temp-mark
3466          wl-thr-indent-string))
3467     line))
3468
3469 (defsubst wl-summary-proc-wday (wday-str year month mday)
3470   (save-match-data
3471     (if (string-match "\\([A-Z][a-z][a-z]\\).*" wday-str)
3472         (wl-match-string 1 wday-str)
3473       (elmo-date-get-week year month mday))))
3474
3475 (defvar wl-summary-move-spec-alist
3476   '((new . ((t . nil)
3477             (p . new)
3478             (p . unread)
3479             (p . digest)))
3480     (unread . ((t . nil)
3481                (p . unread)
3482                (p . digest)))))
3483
3484 (defsubst wl-summary-next-message (num direction hereto)
3485   (if wl-summary-buffer-next-message-function
3486       (funcall wl-summary-buffer-next-message-function num direction hereto)
3487     (let ((cur-spec (cdr (assq wl-summary-move-order
3488                                wl-summary-move-spec-alist)))
3489           (nums (memq num (if (eq direction 'up)
3490                               (reverse wl-summary-buffer-number-list)
3491                             wl-summary-buffer-number-list)))
3492           flagged-list nums2)
3493       (unless hereto (setq nums (cdr nums)))
3494       (setq nums2 nums)
3495       (if cur-spec
3496           (catch 'done
3497             (while cur-spec
3498               (setq nums nums2)
3499               (cond ((eq (car (car cur-spec)) 'p)
3500                      (if (setq flagged-list
3501                                (elmo-folder-list-flagged
3502                                 wl-summary-buffer-elmo-folder
3503                                 (cdr (car cur-spec)) t))
3504                          (while nums
3505                            (if (and (memq (car nums) flagged-list)
3506                                     (elmo-message-accessible-p
3507                                      wl-summary-buffer-elmo-folder
3508                                      (car nums)))
3509                                (throw 'done (car nums)))
3510                            (setq nums (cdr nums)))))
3511                     ((eq (car (car cur-spec)) 't)
3512                      (if wl-summary-buffer-target-mark-list
3513                          (while nums
3514                            (if (memq (car nums)
3515                                      wl-summary-buffer-target-mark-list)
3516                                (throw 'done (car nums)))
3517                            (setq nums (cdr nums))))))
3518               (setq cur-spec (cdr cur-spec))))
3519         (car nums)))))
3520
3521 (defsubst wl-summary-cursor-move (direction hereto)
3522   (when (and (eq direction 'up)
3523              (eobp))
3524     (forward-line -1)
3525     (setq hereto t))
3526   (let (num)
3527     (when (setq num (wl-summary-next-message (wl-summary-message-number)
3528                                              direction hereto))
3529       (if (numberp num)
3530           (wl-thread-jump-to-msg num))
3531       t)))
3532 ;;
3533 ;; Goto unread or global flag message
3534 ;; returns t if next message exists in this folder.
3535 (defun wl-summary-cursor-down (&optional hereto)
3536   (interactive "P")
3537   (wl-summary-cursor-move 'down hereto))
3538
3539 (defun wl-summary-cursor-up (&optional hereto)
3540   (interactive "P")
3541   (wl-summary-cursor-move 'up hereto))
3542
3543 (defun wl-summary-save-view-cache ()
3544   (save-excursion
3545     (let* ((dir (elmo-folder-msgdb-path wl-summary-buffer-elmo-folder))
3546            (cache (expand-file-name wl-summary-cache-file dir))
3547            (view (expand-file-name wl-summary-view-file dir))
3548            (save-view wl-summary-buffer-view)
3549            (mark-list (copy-sequence wl-summary-buffer-target-mark-list))
3550            (temp-list (copy-sequence wl-summary-buffer-temp-mark-list))
3551            (tmp-buffer (get-buffer-create " *wl-summary-save-view-cache*"))
3552            (temp-column wl-summary-buffer-temp-mark-column)
3553            (charset wl-summary-buffer-mime-charset))
3554       (when dir
3555         (if (file-directory-p dir)
3556             (); ok.
3557           (if (file-exists-p dir)
3558               (error "File %s already exists" dir)
3559             (elmo-make-directory dir)))
3560         (if (eq save-view 'thread)
3561             (wl-thread-save-entity dir))
3562         (when wl-summary-check-line-format
3563           (wl-summary-line-format-save))
3564         (unwind-protect
3565             (progn
3566               (when (file-writable-p cache)
3567                 (copy-to-buffer tmp-buffer (point-min) (point-max))
3568                 (with-current-buffer tmp-buffer
3569                   (widen)
3570                   (make-local-variable 'wl-summary-highlight)
3571                   (setq wl-summary-highlight nil
3572                         wl-summary-buffer-target-mark-list mark-list
3573                         wl-summary-buffer-temp-mark-list temp-list
3574                         wl-summary-buffer-temp-mark-column temp-column)
3575                   (wl-summary-delete-all-temp-marks 'no-msg 'force)
3576                   (encode-coding-region
3577                    (point-min) (point-max)
3578                    (or (and wl-on-mule
3579                             ;; one in mcs-ltn1(apel<10.4) cannot take 2 arg.
3580                             (mime-charset-to-coding-system charset 'LF))
3581                        ;; Mule 2 doesn't have `*ctext*unix'.
3582                        (mime-charset-to-coding-system charset)))
3583                   (write-region-as-binary (point-min)(point-max)
3584                                           cache nil 'no-msg)))
3585               (when (file-writable-p view) ; 'thread or 'sequence
3586                 (save-excursion
3587                   (set-buffer tmp-buffer)
3588                   (erase-buffer)
3589                   (prin1 save-view tmp-buffer)
3590                   (princ "\n" tmp-buffer)
3591                   (write-region (point-min) (point-max) view nil 'no-msg))))
3592           ;; kill tmp buffer.
3593           (kill-buffer tmp-buffer))))))
3594
3595 (defsubst wl-summary-get-sync-range (folder)
3596   (intern (or (and
3597                (elmo-folder-plugged-p folder)
3598                (wl-get-assoc-list-value
3599                 wl-folder-sync-range-alist
3600                 (elmo-folder-name-internal folder)
3601                 'function))
3602               wl-default-sync-range)))
3603
3604 ;; redefined for wl-summary-sync-update
3605 (defun wl-summary-input-range (folder)
3606   "returns update or all or rescan."
3607   ;; for the case when parts are expanded in the bottom of the folder
3608   (let ((input-range-list '("no-sync"
3609                             "first:"
3610                             "last:"
3611                             "cache-status"
3612                             "mark"
3613                             "rescan"
3614                             "rescan-noscore"
3615                             "rescan-thread"
3616                             "update"
3617                             "update-entirely"
3618                             "all"
3619                             "all-entirely"))
3620         (default (or (wl-get-assoc-list-value
3621                       wl-folder-sync-range-alist
3622                       folder
3623                       'function)
3624                      wl-default-sync-range))
3625         range)
3626     (setq range
3627           (completing-read (format "Range (%s): " default)
3628                            (mapcar
3629                             (function (lambda (x) (cons x x)))
3630                             input-range-list)))
3631     (if (string= range "")
3632         default
3633       range)))
3634
3635 (defun wl-summary-toggle-disp-folder (&optional arg)
3636   (interactive)
3637   (let ((cur-buf (current-buffer))
3638         (summary-win (get-buffer-window (current-buffer)))
3639         fld-buf fld-win)
3640     (cond
3641      ((eq arg 'on)
3642       (setq wl-summary-buffer-disp-folder t)
3643       ;; hide your folder window
3644       (if (setq fld-buf (get-buffer wl-folder-buffer-name))
3645           (if (setq fld-win (get-buffer-window fld-buf))
3646               (delete-window fld-win))))
3647      ((eq arg 'off)
3648       (setq wl-summary-buffer-disp-folder nil)
3649       ;; hide your wl-message window!
3650       (when (buffer-live-p wl-message-buffer)
3651         (wl-message-select-buffer wl-message-buffer)
3652         (delete-window))
3653       (select-window (get-buffer-window cur-buf))
3654       ;; display wl-folder window!!
3655       (if (setq fld-buf (get-buffer wl-folder-buffer-name))
3656           (if (setq fld-win (get-buffer-window fld-buf))
3657               ;; folder win is already displayed.
3658               (select-window fld-win)
3659             ;; folder win is not displayed.
3660             (switch-to-buffer fld-buf))
3661         ;; no folder buf
3662         (wl-folder))
3663       ;; temporarily delete summary-win.
3664       (if summary-win
3665           (delete-window summary-win))
3666       (split-window-horizontally wl-folder-window-width)
3667       (other-window 1)
3668       (switch-to-buffer cur-buf))
3669      (t
3670       (if (setq fld-buf (get-buffer wl-folder-buffer-name))
3671           (if (setq fld-win (get-buffer-window fld-buf))
3672               (setq wl-summary-buffer-disp-folder nil)
3673             (setq wl-summary-buffer-disp-folder t)))
3674       (if (not wl-summary-buffer-disp-folder)
3675           ;; hide message window
3676           (let ((mes-win (and wl-message-buffer
3677                               (get-buffer-window wl-message-buffer)))
3678                 (wl-stay-folder-window t))
3679             (if mes-win (delete-window mes-win))
3680             ;; hide your folder window
3681             (if (setq fld-buf (get-buffer wl-folder-buffer-name))
3682                 (if (setq fld-win (get-buffer-window fld-buf))
3683                     (progn
3684                       (delete-window (get-buffer-window cur-buf))
3685                       (select-window fld-win)
3686                       (switch-to-buffer cur-buf))))
3687             (run-hooks 'wl-summary-toggle-disp-folder-off-hook)
3688             ;; resume message window.
3689             (when mes-win
3690               (wl-message-select-buffer wl-message-buffer)
3691               (run-hooks 'wl-summary-toggle-disp-folder-message-resumed-hook)
3692               (select-window (get-buffer-window cur-buf))))
3693         ;; hide message window
3694         (let ((wl-stay-folder-window t)
3695               (mes-win (and wl-message-buffer
3696                             (get-buffer-window wl-message-buffer))))
3697           (if mes-win (delete-window mes-win))
3698           (select-window (get-buffer-window cur-buf))
3699           ;; display wl-folder window!!
3700           (if (setq fld-buf (get-buffer wl-folder-buffer-name))
3701               (if (setq fld-win (get-buffer-window fld-buf))
3702                   ;; folder win is already displayed.
3703                   (select-window fld-win)
3704                 ;; folder win is not displayed...occupy all.
3705                 (switch-to-buffer fld-buf))
3706             ;; no folder buf
3707             (wl-folder))
3708           (split-window-horizontally wl-folder-window-width)
3709           (other-window 1)
3710           (switch-to-buffer cur-buf)
3711           ;; resume message window.
3712           (run-hooks 'wl-summary-toggle-disp-folder-on-hook)
3713           (when mes-win
3714             (wl-message-select-buffer wl-message-buffer)
3715             (run-hooks 'wl-summary-toggle-disp-folder-message-resumed-hook)
3716             (select-window (get-buffer-window cur-buf))))))))
3717   (run-hooks 'wl-summary-toggle-disp-folder-hook))
3718
3719 (defun wl-summary-toggle-disp-msg (&optional arg)
3720   (interactive)
3721   (let ((cur-buf (current-buffer))
3722         fld-buf fld-win
3723         summary-win)
3724     (cond
3725      ((eq arg 'on)
3726       (setq wl-summary-buffer-disp-msg t)
3727       (save-excursion
3728         ;; hide your folder window
3729         (if (and (not wl-stay-folder-window)
3730                  (setq fld-buf (get-buffer wl-folder-buffer-name)))
3731             (if (setq fld-win (get-buffer-window fld-buf))
3732                 (unless (one-window-p fld-win)
3733                   (delete-window fld-win))))))
3734      ((eq arg 'off)
3735       (wl-delete-all-overlays)
3736       (setq wl-summary-buffer-disp-msg nil)
3737       (save-excursion
3738         (when (buffer-live-p wl-message-buffer)
3739           (wl-message-select-buffer wl-message-buffer)
3740           (delete-window)
3741           (and (get-buffer-window cur-buf)
3742                (select-window (get-buffer-window cur-buf))))
3743         (run-hooks 'wl-summary-toggle-disp-off-hook)))
3744      (t
3745       (if (and wl-message-buffer
3746                (get-buffer-window wl-message-buffer)) ; already displayed
3747           (setq wl-summary-buffer-disp-msg nil)
3748         (setq wl-summary-buffer-disp-msg t))
3749       (if wl-summary-buffer-disp-msg
3750           (progn
3751             (wl-summary-redisplay)
3752 ;;; hide your folder window
3753 ;;;         (setq fld-buf (get-buffer wl-folder-buffer-name))
3754 ;;;         (if (setq fld-win (get-buffer-window fld-buf))
3755 ;;;             (delete-window fld-win)))
3756             (run-hooks 'wl-summary-toggle-disp-on-hook))
3757         (wl-delete-all-overlays)
3758         (save-excursion
3759           (wl-message-select-buffer wl-message-buffer)
3760           (delete-window)
3761           (select-window (get-buffer-window cur-buf))
3762           (setq wl-message-buffer nil)
3763           (run-hooks 'wl-summary-toggle-disp-off-hook))
3764 ;;;     (switch-to-buffer cur-buf)
3765         )))
3766     (run-hooks 'wl-summary-buffer-window-scroll-functions)))
3767
3768 (defun wl-summary-next-line-content ()
3769   "Show next line of the message."
3770   (interactive)
3771   (let ((cur-buf (current-buffer)))
3772     (wl-summary-toggle-disp-msg 'on)
3773     (when (wl-summary-set-message-buffer-or-redisplay 'ignore-original)
3774       (set-buffer cur-buf)
3775       (wl-message-next-page 1))))
3776
3777 (defun wl-summary-prev-line-content ()
3778   (interactive)
3779   (let ((cur-buf (current-buffer)))
3780     (wl-summary-toggle-disp-msg 'on)
3781     (when (wl-summary-set-message-buffer-or-redisplay 'ignore-original)
3782       (set-buffer cur-buf)
3783       (wl-message-prev-page 1))))
3784
3785 (defun wl-summary-next-page ()
3786   (interactive)
3787   (let ((cur-buf (current-buffer)))
3788     (wl-summary-toggle-disp-msg 'on)
3789     (when (wl-summary-set-message-buffer-or-redisplay 'ignore-original)
3790       (set-buffer cur-buf)
3791       (wl-message-next-page))))
3792
3793 (defun wl-summary-prev-page ()
3794   (interactive)
3795   (let ((cur-buf (current-buffer)))
3796     (wl-summary-toggle-disp-msg 'on)
3797     (when (wl-summary-set-message-buffer-or-redisplay 'ignore-original)
3798       (set-buffer cur-buf)
3799       (wl-message-prev-page))))
3800
3801 (defsubst wl-summary-no-mime-p (folder)
3802   (wl-string-match-member (elmo-folder-name-internal folder)
3803                           wl-summary-no-mime-folder-list))
3804
3805 (defun wl-summary-set-message-buffer-or-redisplay (&rest args)
3806   "Set message buffer.
3807 If message is not displayed yet, display it.
3808 Return t if message exists."
3809   (let ((folder wl-summary-buffer-elmo-folder)
3810         (number (wl-summary-message-number))
3811         cur-folder cur-number message-last-pos)
3812     (when (buffer-live-p wl-message-buffer)
3813       (save-window-excursion
3814         (wl-message-select-buffer wl-message-buffer)
3815         (setq cur-folder wl-message-buffer-cur-folder)
3816         (setq cur-number wl-message-buffer-cur-number)))
3817     (if (and (string= (elmo-folder-name-internal folder) (or cur-folder ""))
3818              (eq number (or cur-number 0)))
3819         (progn
3820           (set-buffer wl-message-buffer)
3821           t)
3822       (if (wl-summary-no-mime-p folder)
3823           (wl-summary-redisplay-no-mime-internal folder number)
3824         (wl-summary-redisplay-internal folder number))
3825       (when (buffer-live-p wl-message-buffer)
3826         (set-buffer wl-message-buffer))
3827       nil)))
3828
3829 (defun wl-summary-target-mark-forward (&optional arg)
3830   (interactive "P")
3831   (let ((mlist (nreverse wl-summary-buffer-target-mark-list))
3832         (summary-buf (current-buffer))
3833         (wl-draft-forward t)
3834         start-point
3835         draft-buf)
3836     (wl-summary-jump-to-msg (car mlist))
3837     (wl-summary-forward t)
3838     (setq start-point (point))
3839     (setq draft-buf (current-buffer))
3840     (setq mlist (cdr mlist))
3841     (save-window-excursion
3842       (when mlist
3843         (while mlist
3844           (set-buffer summary-buf)
3845           (wl-summary-jump-to-msg (car mlist))
3846           (wl-summary-redisplay)
3847           (set-buffer draft-buf)
3848           (goto-char (point-max))
3849           (wl-draft-insert-message)
3850           (setq mlist (cdr mlist)))
3851         (wl-draft-body-goto-top)
3852         (wl-draft-enclose-digest-region (point) (point-max)))
3853       (goto-char start-point)
3854       (save-excursion
3855         (set-buffer summary-buf)
3856         (wl-summary-delete-all-temp-marks)))
3857     (run-hooks 'wl-mail-setup-hook)))
3858
3859 (defun wl-summary-target-mark-reply-with-citation (&optional arg)
3860   (interactive "P")
3861   (let ((mlist (nreverse wl-summary-buffer-target-mark-list))
3862         (summary-buf (current-buffer))
3863         change-major-mode-hook
3864         start-point
3865         draft-buf)
3866     (wl-summary-jump-to-msg (car mlist))
3867     (when (wl-summary-reply arg t)
3868       (goto-char (point-max))
3869       (setq start-point (point-marker))
3870       (setq draft-buf (current-buffer))
3871       (save-window-excursion
3872         (while mlist
3873           (set-buffer summary-buf)
3874           (delete-other-windows)
3875           (wl-summary-jump-to-msg (car mlist))
3876           (wl-summary-redisplay)
3877           (set-buffer draft-buf)
3878           (goto-char (point-max))
3879           (wl-draft-yank-original)
3880           (setq mlist (cdr mlist)))
3881         (goto-char start-point)
3882         (save-excursion
3883           (set-buffer summary-buf)
3884           (wl-summary-delete-all-temp-marks)))
3885       (wl-draft-reply-position wl-draft-reply-default-position)
3886       (run-hooks 'wl-mail-setup-hook))))
3887
3888 (defun wl-summary-reply-with-citation (&optional arg)
3889   (interactive "P")
3890   (when (wl-summary-reply arg t)
3891     (goto-char (point-max))
3892     (wl-draft-yank-original)
3893     (wl-draft-reply-position wl-draft-reply-default-position)
3894     (run-hooks 'wl-mail-setup-hook)))
3895
3896 (defun wl-summary-jump-to-msg-by-message-id (&optional id)
3897   (interactive)
3898   (let* ((original (wl-summary-message-number))
3899          (msgid (elmo-string (or id (read-from-minibuffer "Message-ID: "))))
3900          (entity (elmo-message-entity wl-summary-buffer-elmo-folder msgid))
3901          msg otherfld schar
3902          (errmsg (format "No message with id \"%s\" in the folder." msgid)))
3903     (if (setq msg (elmo-message-entity-number entity))
3904         (progn
3905           (wl-thread-jump-to-msg msg)
3906           t)
3907       ;; for XEmacs!
3908       (if (and elmo-use-database
3909                (setq errmsg
3910                      (format
3911                       "No message with id \"%s\" in the database." msgid))
3912                (setq otherfld (elmo-database-msgid-get msgid)))
3913           (if (cdr (wl-summary-jump-to-msg-internal
3914                     (car otherfld) (nth 1 otherfld) 'no-sync))
3915               t ; succeed.
3916             ;; Back to original.
3917             (wl-summary-jump-to-msg-internal
3918              (wl-summary-buffer-folder-name) original 'no-sync))
3919         (cond ((eq wl-summary-search-via-nntp 'confirm)
3920                (require 'elmo-nntp)
3921                (message "Search message in nntp server \"%s\" <y/n/s(elect)>? "
3922                         elmo-nntp-default-server)
3923                (setq schar (let ((cursor-in-echo-area t)) (read-char)))
3924                (cond ((eq schar ?y)
3925                       (wl-summary-jump-to-msg-by-message-id-via-nntp msgid))
3926                      ((eq schar ?s)
3927                       (wl-summary-jump-to-msg-by-message-id-via-nntp
3928                        msgid
3929                        (read-from-minibuffer "NNTP Server: ")))
3930                      (t
3931                       (message "%s" errmsg)
3932                       nil)))
3933               ((or (eq wl-summary-search-via-nntp 'force)
3934                    (and
3935                     (eq (elmo-folder-type-internal wl-summary-buffer-elmo-folder)
3936                         'nntp)
3937                     wl-summary-search-via-nntp))
3938                (wl-summary-jump-to-msg-by-message-id-via-nntp msgid))
3939               (t
3940                (message "%s" errmsg)
3941                nil))))))
3942
3943 (defun wl-summary-jump-to-msg-by-message-id-via-nntp (&optional id server-spec)
3944   (interactive)
3945   (let* ((msgid (elmo-string (or id (read-from-minibuffer "Message-ID: "))))
3946          newsgroups folder ret
3947          user server port type spec)
3948     (if server-spec
3949         (if (string-match "^-" server-spec)
3950             (setq spec (wl-folder-get-elmo-folder server-spec)
3951                   user (elmo-net-folder-user-internal spec)
3952                   server (elmo-net-folder-server-internal spec)
3953                   port (elmo-net-folder-port-internal spec)
3954                   type (elmo-net-folder-stream-type-internal spec))
3955           (setq server server-spec)))
3956     (when (setq ret (elmo-nntp-get-newsgroup-by-msgid
3957                      msgid
3958                      (or server elmo-nntp-default-server)
3959                      (or user elmo-nntp-default-user)
3960                      (or port elmo-nntp-default-port)
3961                      (or type elmo-nntp-default-stream-type)))
3962       (setq newsgroups (elmo-nntp-parse-newsgroups ret))
3963       (setq folder (concat "-" (car newsgroups)
3964                            (elmo-nntp-folder-postfix user server port type)))
3965       (catch 'found
3966         (while newsgroups
3967           (if (wl-folder-entity-exists-p (car newsgroups)
3968                                          wl-folder-newsgroups-hashtb)
3969               (throw 'found
3970                      (setq folder (concat "-" (car newsgroups)
3971                                           (elmo-nntp-folder-postfix
3972                                            user server port type)))))
3973           (setq newsgroups (cdr newsgroups)))))
3974     (if ret
3975         (wl-summary-jump-to-msg-internal folder nil 'update msgid)
3976       (message "No message id \"%s\" in nntp server \"%s\"."
3977                msgid (or server elmo-nntp-default-server))
3978       nil)))
3979
3980 (defun wl-summary-jump-to-msg-internal (folder msg scan-type &optional msgid)
3981   (let (wl-auto-select-first entity)
3982     (if (or (string= folder (wl-summary-buffer-folder-name))
3983             (y-or-n-p
3984              (format
3985               "Message was found in the folder \"%s\". Jump to it? "
3986               folder)))
3987         (progn
3988           (unwind-protect
3989               (wl-summary-goto-folder-subr
3990                folder scan-type nil nil t)
3991             (if msgid
3992                 (setq msg
3993                       (elmo-message-entity-number
3994                        (elmo-message-entity
3995                         wl-summary-buffer-elmo-folder
3996                         msgid))))
3997             (setq entity (wl-folder-search-entity-by-name folder
3998                                                           wl-folder-entity
3999                                                           'folder))
4000             (if entity
4001                 (wl-folder-set-current-entity-id
4002                  (wl-folder-get-entity-id entity))))
4003           (if (null msg)
4004               (message "Message was not found currently in this folder.")
4005             (setq msg (and (wl-thread-jump-to-msg msg) msg)))
4006           (cons folder msg)))))
4007
4008 (defun wl-summary-jump-to-parent-message (arg)
4009   (interactive "P")
4010   (let ((cur-buf (current-buffer))
4011         (disp-msg wl-summary-buffer-disp-msg)
4012         (number (wl-summary-message-number))
4013         (regexp "\\(<[^<>]*>\\)[ \t]*$")
4014         (i -1) ;; xxx
4015         msg-id msg-num ref-list ref irt)
4016     (if (null number)
4017         (message "No message.")
4018       (when (eq wl-summary-buffer-view 'thread)
4019         (cond ((and arg (not (numberp arg)))
4020                (setq msg-num
4021                      (wl-thread-entity-get-number
4022                       (wl-thread-entity-get-top-entity
4023                        (wl-thread-get-entity number)))))
4024               ((and arg (numberp arg))
4025                (setq i 0)
4026                (setq msg-num number)
4027                (while (< i arg)
4028                  (setq msg-num
4029                        (wl-thread-entity-get-number
4030                         (wl-thread-entity-get-parent-entity
4031                          (wl-thread-get-entity msg-num))))
4032                  (setq i (1+ i))))
4033               (t (setq msg-num
4034                        (wl-thread-entity-get-number
4035                         (wl-thread-entity-get-parent-entity
4036                          (wl-thread-get-entity number)))))))
4037       (when (null msg-num)
4038         (wl-summary-set-message-buffer-or-redisplay)
4039         (set-buffer (wl-message-get-original-buffer))
4040         (message "Searching parent message...")
4041         (setq ref (std11-field-body "References")
4042               irt (std11-field-body "In-Reply-To"))
4043         (cond
4044          ((and arg (not (numberp arg)) ref (not (string= ref ""))
4045                (string-match regexp ref))
4046           ;; The first message of the thread.
4047           (setq msg-id (wl-match-string 1 ref)))
4048          ;; "In-Reply-To:" has only one msg-id.
4049          ((and (null arg) irt (not (string= irt ""))
4050                (string-match regexp irt))
4051           (setq msg-id (wl-match-string 1 irt)))
4052          ((and (or (null arg) (numberp arg)) ref (not (string= ref ""))
4053                (string-match regexp ref))
4054           ;; "^" searching parent, "C-u 2 ^" looking for grandparent.
4055           (while (string-match regexp ref)
4056             (setq ref-list
4057                   (append (list
4058                            (wl-match-string 1 ref))
4059                           ref-list))
4060             (setq ref (substring ref (match-end 0)))
4061             (setq i (1+ i)))
4062           (setq msg-id
4063                 (if (null arg) (nth 0 ref-list) ;; previous
4064                   (if (<= arg i) (nth (1- arg) ref-list)
4065                     (nth i ref-list))))))
4066         (set-buffer cur-buf)
4067         (or disp-msg (wl-summary-toggle-disp-msg 'off)))
4068       (cond ((and (null msg-id) (null msg-num))
4069              (message "No parent message!")
4070              nil)
4071             ((and msg-id (wl-summary-jump-to-msg-by-message-id msg-id))
4072              (if wl-summary-buffer-disp-msg (wl-summary-redisplay))
4073              (message "Searching parent message...done")
4074              t)
4075             ((and msg-num (wl-summary-jump-to-msg msg-num))
4076              (if wl-summary-buffer-disp-msg (wl-summary-redisplay))
4077              (message "Searching parent message...done")
4078              t)
4079             (t ; failed.
4080              (message "Parent message was not found.")
4081              nil)))))
4082
4083 (defun wl-summary-reply (&optional arg without-setup-hook)
4084   "Reply to current message. Default is \"wide\" reply.
4085 Reply to author if invoked with ARG."
4086   (interactive "P")
4087   (let ((folder wl-summary-buffer-elmo-folder)
4088         (number (wl-summary-message-number))
4089         (summary-buf (current-buffer))
4090         (winconf (current-window-configuration))
4091         mes-buf)
4092     (when number
4093       (save-excursion
4094         (wl-summary-set-message-buffer-or-redisplay))
4095       (setq mes-buf wl-message-buffer)
4096       (wl-message-select-buffer wl-message-buffer)
4097       (set-buffer mes-buf)
4098       (condition-case err
4099           (when (setq mes-buf (wl-message-get-original-buffer))
4100             (wl-draft-reply mes-buf arg summary-buf number)
4101             (wl-draft-reply-position wl-draft-reply-default-position)
4102             (unless without-setup-hook
4103               (run-hooks 'wl-mail-setup-hook)))
4104         (error (set-window-configuration winconf)
4105                (signal (car err)(cdr err))))
4106       (with-current-buffer summary-buf
4107         (elmo-folder-set-flag folder (list number) 'answered)
4108         (wl-summary-update-persistent-mark))
4109       t)))
4110
4111 (defun wl-summary-write ()
4112   "Write a new draft from Summary."
4113   (interactive)
4114   (wl-draft (list (cons 'To ""))
4115             nil nil nil nil (wl-summary-buffer-folder-name))
4116   (run-hooks 'wl-mail-setup-hook)
4117   (mail-position-on-field "To"))
4118
4119 (defvar wl-summary-write-current-folder-functions
4120   '(wl-folder-get-newsgroups
4121     wl-folder-guess-mailing-list-by-refile-rule
4122     wl-folder-guess-mailing-list-by-folder-name)
4123   "Newsgroups or Mailing List address guess functions list.
4124 Call from `wl-summary-write-current-folder'.
4125 When guess function return nil, challenge next guess-function.")
4126
4127 (defun wl-summary-write-current-folder (&optional folder)
4128   "Write message to current FOLDER's newsgroup or mailing-list.
4129 Use function list is `wl-summary-write-current-folder-functions'."
4130   (interactive)
4131   ;; default FOLDER is current buffer folder
4132   (setq folder (or folder (wl-summary-buffer-folder-name)))
4133   (let ((func-list wl-summary-write-current-folder-functions)
4134         guess-list guess-func)
4135     (while func-list
4136       (setq guess-list (funcall (car func-list) folder))
4137       (if (null guess-list)
4138           (setq func-list (cdr func-list))
4139         (setq guess-func (car func-list))
4140         (setq func-list nil)))
4141     (if (null guess-func)
4142         (wl-summary-write)
4143       (unless (or (stringp (nth 0 guess-list))
4144                   (stringp (nth 1 guess-list))
4145                   (stringp (nth 2 guess-list)))
4146         (error "Invalid value return guess function `%s'"
4147                (symbol-name guess-func)))
4148       (wl-draft (list (cons 'To (nth 0 guess-list))
4149                       (cons 'Cc (nth 1 guess-list))
4150                       (cons 'Newsgroups (nth 2 guess-list)))
4151                 nil nil nil nil folder)
4152       (run-hooks 'wl-mail-setup-hook)
4153       (mail-position-on-field "Subject"))))
4154
4155 (defun wl-summary-forward (&optional without-setup-hook)
4156   ""
4157   (interactive)
4158   (let ((folder wl-summary-buffer-elmo-folder)
4159         (number (wl-summary-message-number))
4160         (summary-buf (current-buffer))
4161         (wl-draft-forward t)
4162         mes-buf
4163         entity subject num)
4164     (if (null number)
4165         (message "No message.")
4166       (if (and (elmo-message-use-cache-p folder number)
4167                (eq (elmo-file-cache-status
4168                     (elmo-file-cache-get
4169                      (elmo-message-field folder number 'message-id)))
4170                    'section))
4171           ;; Reload.
4172           (wl-summary-redisplay-internal nil nil 'force-reload)
4173         (wl-summary-redisplay-internal folder number))
4174       (setq mes-buf wl-message-buffer)
4175       (wl-message-select-buffer mes-buf)
4176       ;; get original subject.
4177       (if summary-buf
4178           (save-excursion
4179             (set-buffer summary-buf)
4180             (setq subject
4181                   (or (elmo-message-entity-field
4182                        (elmo-message-entity folder number) 'subject 'decode)
4183                       ""))))
4184       (set-buffer mes-buf)
4185       (wl-draft-forward subject summary-buf)
4186       (unless without-setup-hook
4187         (run-hooks 'wl-mail-setup-hook)))))
4188
4189 (defun wl-summary-click (e)
4190   (interactive "e")
4191   (mouse-set-point e)
4192   (wl-summary-read))
4193
4194 (defun wl-summary-read ()
4195   "Proceed reading message in the summary buffer."
4196   (interactive)
4197   (let ((cur-buf (current-buffer)))
4198     (wl-summary-toggle-disp-msg 'on)
4199     (when (wl-summary-set-message-buffer-or-redisplay 'ignore-original)
4200       (set-buffer cur-buf)
4201       (if (wl-message-next-page)
4202           (wl-summary-down t)))))
4203
4204 (defsubst wl-summary-cursor-move-surface (downward interactive)
4205   (if wl-summary-move-direction-toggle
4206       (setq wl-summary-move-direction-downward downward))
4207   (let ((start (point))
4208         (skip-tmark-regexp (wl-regexp-opt wl-summary-skip-mark-list))
4209         (skip t)
4210         (column (current-column))
4211         goto-next next-entity finfo)
4212     (beginning-of-line)
4213     (while (and skip
4214                 (not (if downward (eobp) (bobp))))
4215       (if downward
4216           (forward-line 1)
4217         (forward-line -1))
4218       (setq skip (or (string-match skip-tmark-regexp
4219                                    (wl-summary-temp-mark))
4220                      (not (and (wl-summary-message-number)
4221                                (elmo-message-accessible-p
4222                                 wl-summary-buffer-elmo-folder
4223                                 (wl-summary-message-number)))))))
4224     (if (if downward (eobp) (and (bobp) skip)) (setq goto-next t))
4225     (if (or (eobp) (and (bobp) skip))
4226         (goto-char start))
4227     (move-to-column column)
4228
4229     (if (not goto-next)
4230         (if wl-summary-buffer-disp-msg
4231             (wl-summary-redisplay))
4232       (if interactive
4233           (cond
4234            ((and (not downward) wl-summary-buffer-prev-folder-function)
4235             (funcall wl-summary-buffer-prev-folder-function))
4236            ((and downward wl-summary-buffer-next-folder-function)
4237             (funcall wl-summary-buffer-next-folder-function))
4238            (t
4239             (when wl-auto-select-next
4240               (setq next-entity
4241                     (if downward
4242                         (wl-summary-get-next-folder)
4243                       (wl-summary-get-prev-folder)))
4244               (if next-entity
4245                   (setq finfo (wl-folder-get-entity-info next-entity))))
4246             (wl-ask-folder
4247              '(lambda () (wl-summary-next-folder-or-exit next-entity))
4248              (format
4249               "No more messages. Type SPC to go to %s."
4250               (wl-summary-entity-info-msg next-entity finfo)))))))))
4251
4252 (defun wl-summary-prev (&optional interactive)
4253   (interactive)
4254   (wl-summary-cursor-move-surface nil (or interactive (interactive-p))))
4255
4256 (defun wl-summary-next (&optional interactive)
4257   (interactive)
4258   (wl-summary-cursor-move-surface t (or interactive (interactive-p))))
4259
4260 (defun wl-summary-up (&optional interactive skip-no-unread)
4261   ""
4262   (interactive)
4263   (if wl-summary-move-direction-toggle
4264       (setq wl-summary-move-direction-downward nil))
4265   (if (wl-summary-cursor-up)
4266       (if wl-summary-buffer-disp-msg
4267           (wl-summary-redisplay))
4268     (if (or interactive
4269             (interactive-p))
4270         (if wl-summary-buffer-prev-folder-function
4271             (funcall wl-summary-buffer-prev-folder-function)
4272           (let (next-entity finfo)
4273             (when wl-auto-select-next
4274               (progn
4275                 (setq next-entity (wl-summary-get-prev-unread-folder))
4276                 (if next-entity
4277                     (setq finfo (wl-folder-get-entity-info next-entity)))))
4278             (if (and skip-no-unread
4279                      (eq wl-auto-select-next 'skip-no-unread))
4280                 (wl-summary-next-folder-or-exit next-entity t)
4281               (wl-ask-folder
4282                '(lambda () (wl-summary-next-folder-or-exit next-entity t))
4283                (format
4284                 "No more unread messages. Type SPC to go to %s."
4285                 (wl-summary-entity-info-msg next-entity finfo)))))))))
4286
4287 (defun wl-summary-get-prev-folder ()
4288   (let ((folder-buf (get-buffer wl-folder-buffer-name))
4289         last-entity cur-id)
4290     (when folder-buf
4291       (setq cur-id (save-excursion (set-buffer folder-buf)
4292                                    wl-folder-buffer-cur-entity-id))
4293       (wl-folder-get-prev-folder cur-id))))
4294
4295 (defun wl-summary-get-next-folder ()
4296   (let ((folder-buf (get-buffer wl-folder-buffer-name))
4297         cur-id)
4298     (when folder-buf
4299       (setq cur-id (save-excursion (set-buffer folder-buf)
4300                                    wl-folder-buffer-cur-entity-id))
4301       (wl-folder-get-next-folder cur-id))))
4302
4303 (defun wl-summary-get-next-unread-folder ()
4304   (let ((folder-buf (get-buffer wl-folder-buffer-name))
4305         cur-id)
4306     (when folder-buf
4307       (setq cur-id (save-excursion (set-buffer folder-buf)
4308                                    wl-folder-buffer-cur-entity-id))
4309       (wl-folder-get-next-folder cur-id 'unread))))
4310
4311 (defun wl-summary-get-prev-unread-folder ()
4312   (let ((folder-buf (get-buffer wl-folder-buffer-name))
4313         cur-id)
4314     (when folder-buf
4315       (setq cur-id (save-excursion (set-buffer folder-buf)
4316                                    wl-folder-buffer-cur-entity-id))
4317       (wl-folder-get-prev-folder cur-id 'unread))))
4318
4319 (defun wl-summary-down (&optional interactive skip-no-unread)
4320   (interactive)
4321   (if wl-summary-move-direction-toggle
4322       (setq wl-summary-move-direction-downward t))
4323   (if (wl-summary-cursor-down)
4324       (if wl-summary-buffer-disp-msg
4325           (wl-summary-redisplay))
4326     (if (or interactive
4327             (interactive-p))
4328         (if wl-summary-buffer-next-folder-function
4329             (funcall wl-summary-buffer-next-folder-function)
4330           (let (next-entity finfo)
4331             (when wl-auto-select-next
4332               (setq next-entity (wl-summary-get-next-unread-folder)))
4333             (if next-entity
4334                 (setq finfo (wl-folder-get-entity-info next-entity)))
4335             (if (and skip-no-unread
4336                      (eq wl-auto-select-next 'skip-no-unread))
4337                 (wl-summary-next-folder-or-exit next-entity)
4338               (wl-ask-folder
4339                '(lambda () (wl-summary-next-folder-or-exit next-entity))
4340                (format
4341                 "No more unread messages. Type SPC to go to %s."
4342                 (wl-summary-entity-info-msg next-entity finfo)))))))))
4343
4344 (defun wl-summary-goto-last-displayed-msg ()
4345   (interactive)
4346   (unless wl-summary-buffer-last-displayed-msg
4347     (setq wl-summary-buffer-last-displayed-msg
4348           wl-summary-buffer-current-msg))
4349   (if wl-summary-buffer-last-displayed-msg
4350       (progn
4351         (wl-summary-jump-to-msg wl-summary-buffer-last-displayed-msg)
4352         (if wl-summary-buffer-disp-msg
4353             (wl-summary-redisplay)))
4354     (message "No last message.")))
4355
4356 (defun wl-summary-redisplay (&optional arg)
4357   (interactive "P")
4358   (if (and (not arg)
4359            (wl-summary-no-mime-p wl-summary-buffer-elmo-folder))
4360       (wl-summary-redisplay-no-mime)
4361     (wl-summary-redisplay-internal nil nil arg)))
4362
4363 (defsubst wl-summary-redisplay-internal (&optional folder number force-reload)
4364   (interactive)
4365   (let* ((folder (or folder wl-summary-buffer-elmo-folder))
4366          (num (or number (wl-summary-message-number)))
4367          (wl-mime-charset      wl-summary-buffer-mime-charset)
4368          (default-mime-charset wl-summary-buffer-mime-charset)
4369          no-folder-mark fld-buf fld-win thr-entity)
4370     (if (and wl-thread-open-reading-thread
4371              (eq wl-summary-buffer-view 'thread)
4372              (not (wl-thread-entity-get-opened
4373                    (setq thr-entity (wl-thread-get-entity
4374                                      num))))
4375              (wl-thread-entity-get-children thr-entity))
4376         (wl-thread-force-open))
4377     (if num
4378         (progn
4379           (setq wl-summary-buffer-disp-msg t)
4380           (setq wl-summary-buffer-last-displayed-msg
4381                 wl-summary-buffer-current-msg)
4382           ;; hide folder window
4383           (if (and (not wl-stay-folder-window)
4384                    (setq fld-buf (get-buffer wl-folder-buffer-name)))
4385               (if (setq fld-win (get-buffer-window fld-buf))
4386                   (delete-window fld-win)))
4387           (setq wl-current-summary-buffer (current-buffer))
4388           (setq no-folder-mark
4389                 ;; If cache is used, change folder-mark.
4390                 (if (wl-message-redisplay folder num
4391                                           'mime
4392                                           (or
4393                                            force-reload
4394                                            (string= (elmo-folder-name-internal
4395                                                      folder)
4396                                                     wl-draft-folder)))
4397                     nil
4398                   ;; plugged, then leave folder-mark.
4399                   (if (and (not (elmo-folder-local-p
4400                                  wl-summary-buffer-elmo-folder))
4401                            (elmo-folder-plugged-p
4402                             wl-summary-buffer-elmo-folder))
4403                       'leave)))
4404           (when (elmo-message-use-cache-p folder num)
4405             (elmo-message-set-cached folder num t))
4406           (ignore-errors
4407             (if (elmo-message-flagged-p wl-summary-buffer-elmo-folder
4408                                         num
4409                                         'unread)
4410                 (wl-summary-mark-as-read num no-folder-mark)
4411               (wl-summary-update-persistent-mark)))
4412           (setq wl-summary-buffer-current-msg num)
4413           (when wl-summary-recenter
4414             (recenter (/ (- (window-height) 2) 2))
4415             (if (not wl-summary-indent-length-limit)
4416                 (wl-horizontal-recenter)))
4417           (wl-highlight-summary-displaying)
4418           (wl-message-buffer-prefetch-next folder num
4419                                            wl-message-buffer-prefetch-depth
4420                                            (current-buffer)
4421                                            wl-summary-buffer-mime-charset)
4422           (run-hooks 'wl-summary-redisplay-hook))
4423       (message "No message to display."))))
4424
4425 (defun wl-summary-redisplay-no-mime (&optional ask-coding)
4426   "Display message without MIME decoding.
4427 If ASK-CODING is non-nil, coding-system for the message is asked."
4428   (interactive "P")
4429   (let ((elmo-mime-display-as-is-coding-system
4430          (if ask-coding
4431              (or (read-coding-system "Coding system: ")
4432                  elmo-mime-display-as-is-coding-system)
4433            elmo-mime-display-as-is-coding-system)))
4434     (wl-summary-redisplay-no-mime-internal)))
4435
4436 (defun wl-summary-redisplay-no-mime-internal (&optional folder number)
4437   (let* ((fld (or folder wl-summary-buffer-elmo-folder))
4438          (num (or number (wl-summary-message-number)))
4439          wl-break-pages)
4440     (if num
4441         (progn
4442           (setq wl-summary-buffer-disp-msg t)
4443           (setq wl-summary-buffer-last-displayed-msg
4444                 wl-summary-buffer-current-msg)
4445           (setq wl-current-summary-buffer (current-buffer))
4446           (wl-message-redisplay fld num 'as-is
4447                                 (string= (elmo-folder-name-internal fld)
4448                                          wl-draft-folder))
4449           (when (elmo-message-use-cache-p fld num)
4450             (elmo-message-set-cached fld num t))
4451           (ignore-errors
4452             (if (elmo-message-flagged-p fld num 'unread)
4453                 (wl-summary-mark-as-read num); no-folder-mark)
4454               (wl-summary-update-persistent-mark)))
4455           (setq wl-summary-buffer-current-msg num)
4456           (when wl-summary-recenter
4457             (recenter (/ (- (window-height) 2) 2))
4458             (if (not wl-summary-indent-length-limit)
4459                 (wl-horizontal-recenter)))
4460           (wl-highlight-summary-displaying)
4461           (run-hooks 'wl-summary-redisplay-hook))
4462       (message "No message to display.")
4463       (wl-ask-folder 'wl-summary-exit
4464                      "No more messages. Type SPC to go to folder mode."))))
4465
4466 (defun wl-summary-redisplay-all-header (&optional folder number)
4467   (interactive)
4468   (let* ((fld (or folder wl-summary-buffer-elmo-folder))
4469          (num (or number (wl-summary-message-number)))
4470          (wl-mime-charset      wl-summary-buffer-mime-charset)
4471          (default-mime-charset wl-summary-buffer-mime-charset))
4472     (if num
4473         (progn
4474           (setq wl-summary-buffer-disp-msg t)
4475           (setq wl-summary-buffer-last-displayed-msg
4476                 wl-summary-buffer-current-msg)
4477           (setq wl-current-summary-buffer (current-buffer))
4478           (when (elmo-message-use-cache-p fld num)
4479             (elmo-message-set-cached fld num t))
4480           (if (wl-message-redisplay fld num 'all-header
4481                                     (string= (elmo-folder-name-internal fld)
4482                                              wl-draft-folder))
4483               (wl-summary-mark-as-read num))
4484           (setq wl-summary-buffer-current-msg num)
4485           (when wl-summary-recenter
4486             (recenter (/ (- (window-height) 2) 2))
4487             (if (not wl-summary-indent-length-limit)
4488                 (wl-horizontal-recenter)))
4489           (wl-highlight-summary-displaying)
4490           (run-hooks 'wl-summary-redisplay-hook))
4491       (message "No message to display."))))
4492
4493 (defun wl-summary-jump-to-current-message ()
4494   "Jump into Message buffer."
4495   (interactive)
4496   (let (message-buf message-win)
4497     (if (setq message-buf wl-message-buffer)
4498         (if (setq message-win (get-buffer-window message-buf))
4499             (select-window message-win)
4500           (wl-message-select-buffer wl-message-buffer))
4501       (wl-summary-redisplay)
4502       (wl-message-select-buffer wl-message-buffer))))
4503
4504 (defun wl-summary-cancel-message ()
4505   "Cancel an article on news."
4506   (interactive)
4507   (if (null (wl-summary-message-number))
4508       (message "No message.")
4509     (let ((summary-buf (current-buffer))
4510           message-buf)
4511       (wl-summary-set-message-buffer-or-redisplay)
4512       (if (setq message-buf (wl-message-get-original-buffer))
4513           (set-buffer message-buf))
4514       (unless (wl-message-news-p)
4515         (set-buffer summary-buf)
4516         (if (and (eq (elmo-folder-type-internal wl-summary-buffer-elmo-folder)
4517                      'nntp)
4518                  (y-or-n-p "Cannot get Newsgroups. Fetch again? "))
4519             (progn
4520               (wl-summary-redisplay t)
4521               (wl-summary-supersedes-message))
4522           (error "This is not a news article; supersedes is impossible")))
4523       (when (yes-or-no-p "Do you really want to cancel this article? ")
4524         (let (from newsgroups message-id distribution buf)
4525           (save-excursion
4526             (setq from (std11-field-body "from")
4527                   newsgroups (std11-field-body "newsgroups")
4528                   message-id (std11-field-body "message-id")
4529                   distribution (std11-field-body "distribution"))
4530             ;; Make sure that this article was written by the user.
4531             (unless (wl-address-user-mail-address-p
4532                      (wl-address-header-extract-address
4533                       (car (wl-parse-addresses from))))
4534               (error "This article is not yours"))
4535             ;; Make control message.
4536             (setq buf (set-buffer (get-buffer-create " *message cancel*")))
4537             (setq wl-draft-buffer-cur-summary-buffer summary-buf)
4538             (buffer-disable-undo (current-buffer))
4539             (erase-buffer)
4540             (insert "Newsgroups: " newsgroups "\n"
4541                     "From: " (wl-address-header-extract-address
4542                               wl-from) "\n"
4543                               "Subject: cmsg cancel " message-id "\n"
4544                               "Control: cancel " message-id "\n"
4545                               (if distribution
4546                                   (concat "Distribution: " distribution "\n")
4547                                 "")
4548                               mail-header-separator "\n"
4549                               wl-summary-cancel-message)
4550             (message "Canceling your message...")
4551             (wl-draft-raw-send t t) ; kill when done, force-pre-hooks.
4552             (message "Canceling your message...done")))))))
4553
4554 (defun wl-summary-supersedes-message ()
4555   "Supersede current message."
4556   (interactive)
4557   (wl-summary-toggle-disp-msg 'off)
4558   (let ((summary-buf (current-buffer))
4559         message-buf from)
4560     (wl-summary-set-message-buffer-or-redisplay)
4561     (if (setq message-buf (wl-message-get-original-buffer))
4562         (set-buffer message-buf))
4563     (unless (wl-message-news-p)
4564       (set-buffer summary-buf)
4565       (if (and (eq (elmo-folder-type-internal wl-summary-buffer-elmo-folder)
4566                    'nntp)
4567                (y-or-n-p "Cannot get Newsgroups. Fetch again? "))
4568           (progn
4569             (wl-summary-redisplay t)
4570             (wl-summary-supersedes-message))
4571         (error "This is not a news article; supersedes is impossible")))
4572     (save-excursion
4573       (setq from (std11-field-body "from"))
4574       ;; Make sure that this article was written by the user.
4575       (unless (wl-address-user-mail-address-p
4576                (wl-address-header-extract-address
4577                 (car (wl-parse-addresses from))))
4578         (error "This article is not yours"))
4579       (let* ((message-id (std11-field-body "message-id"))
4580              (followup-to (std11-field-body "followup-to"))
4581              (mail-default-headers
4582               (concat mail-default-headers
4583                       "Supersedes: " message-id "\n"
4584                       (and followup-to
4585                            (concat "Followup-To: " followup-to "\n")))))
4586         (if message-buf (set-buffer message-buf))
4587         (wl-draft-edit-string (buffer-substring (point-min) (point-max)))))))
4588
4589 (defun wl-summary-save (&optional arg wl-save-dir)
4590   "Save current message to disk."
4591   (interactive)
4592   (let ((filename)
4593         (num (wl-summary-message-number)))
4594     (if (null wl-save-dir)
4595         (setq wl-save-dir wl-temporary-file-directory))
4596     (if num
4597         (save-excursion
4598           (setq filename (expand-file-name
4599                           (concat (int-to-string num)
4600                                   wl-summary-save-file-suffix)
4601                           wl-save-dir))
4602           (if (null (and arg
4603                          (null (file-exists-p filename))))
4604               (setq filename
4605                     (read-file-name "Save to file: " filename)))
4606
4607           (wl-summary-set-message-buffer-or-redisplay)
4608           (set-buffer (wl-message-get-original-buffer))
4609           (if (and (null arg) (file-exists-p filename))
4610               (if (y-or-n-p "File already exists.  override it? ")
4611                   (write-region (point-min) (point-max) filename))
4612             (write-region (point-min) (point-max) filename)))
4613       (message "No message to save."))
4614     num))
4615
4616 (defun wl-summary-save-region (beg end)
4617   (interactive "r")
4618   (save-excursion
4619     (save-restriction
4620       (wl-summary-narrow-to-region beg end)
4621       (goto-char (point-min))
4622       (let ((wl-save-dir
4623              (wl-read-directory-name "Save to directory: "
4624                                      wl-temporary-file-directory)))
4625         (if (null (file-exists-p wl-save-dir))
4626             (make-directory wl-save-dir))
4627         (if (eq wl-summary-buffer-view 'thread)
4628             (progn
4629               (while (not (eobp))
4630                 (let* ((number (wl-summary-message-number))
4631                        (entity (wl-thread-get-entity number)))
4632                   (if (wl-thread-entity-get-opened entity)
4633                       (wl-summary-save t wl-save-dir)
4634                     ;; closed
4635                     (wl-summary-save t wl-save-dir))
4636                   (forward-line 1))))
4637           (while (not (eobp))
4638             (wl-summary-save t wl-save-dir)
4639             (forward-line 1)))))))
4640
4641 ;; mew-summary-pipe-message()
4642 (defun wl-summary-pipe-message (prefix command)
4643   "Send this message via pipe."
4644   (interactive (list current-prefix-arg nil))
4645   (if (null (wl-summary-message-number))
4646       (message "No message.")
4647     (setq command (read-string "Shell command on message: "
4648                                wl-summary-shell-command-last))
4649     (if (y-or-n-p "Send this message to pipe? ")
4650         (wl-summary-pipe-message-subr prefix command))))
4651
4652 (defun wl-summary-target-mark-pipe (prefix command)
4653   "Send each marked messages via pipe."
4654   (interactive (list current-prefix-arg nil))
4655   (if (null wl-summary-buffer-target-mark-list)
4656       (message "No marked message.")
4657     (setq command (read-string "Shell command on each marked message: "
4658                                wl-summary-shell-command-last))
4659     (when (y-or-n-p "Send each marked message to pipe? ")
4660       (while (car wl-summary-buffer-target-mark-list)
4661         (let ((num (car wl-summary-buffer-target-mark-list)))
4662           (wl-thread-jump-to-msg num)
4663           (wl-summary-pipe-message-subr prefix command)
4664           (wl-summary-unmark))))))
4665
4666 (defun wl-summary-pipe-message-subr (prefix command)
4667   (save-excursion
4668     (wl-summary-set-message-buffer-or-redisplay)
4669     (set-buffer (wl-message-get-original-buffer))
4670     (if (string= command "")
4671         (setq command wl-summary-shell-command-last))
4672     (goto-char (point-min)) ; perhaps this line won't be necessary
4673     (if prefix
4674         (search-forward "\n\n"))
4675     (shell-command-on-region (point) (point-max) command nil)
4676     (setq wl-summary-shell-command-last command)))
4677
4678 (defun wl-summary-print-message (&optional arg)
4679   (interactive "P")
4680   (if (null (wl-summary-message-number))
4681       (message "No message.")
4682     (save-excursion
4683       (wl-summary-set-message-buffer-or-redisplay)
4684       (if (or (not (interactive-p))
4685               (y-or-n-p "Print ok? "))
4686           (progn
4687             (let ((buffer (generate-new-buffer " *print*")))
4688               (copy-to-buffer buffer (point-min) (point-max))
4689               (set-buffer buffer)
4690               (funcall wl-print-buffer-function)
4691               (kill-buffer buffer)))
4692         (message "")))))
4693
4694 (defun wl-summary-print-message-with-ps-print (&optional filename)
4695   "Print message via ps-print."
4696   (interactive)
4697   (if (null (wl-summary-message-number))
4698       (message "No message.")
4699     (setq filename (ps-print-preprint current-prefix-arg))
4700     (if (or (not (interactive-p))
4701             (y-or-n-p "Print ok? "))
4702         (let ((summary-buffer (current-buffer))
4703               wl-break-pages)
4704           (save-excursion
4705             (wl-summary-set-message-buffer-or-redisplay)
4706             ;; (wl-summary-redisplay-internal)
4707             (let* ((buffer (generate-new-buffer " *print*"))
4708                    (entity (progn
4709                              (set-buffer summary-buffer)
4710                              (elmo-message-entity
4711                               wl-summary-buffer-elmo-folder
4712                               (wl-summary-message-number))))
4713                    (wl-ps-subject
4714                     (and entity
4715                          (or (elmo-message-entity-field entity 'subject t)
4716                              "")))
4717                    (wl-ps-from
4718                     (and entity
4719                          (or (elmo-message-entity-field entity 'from t) "")))
4720                    (wl-ps-date
4721                     (and entity
4722                          (or (elmo-message-entity-field entity 'date) ""))))
4723               (run-hooks 'wl-ps-preprint-hook)
4724               (set-buffer wl-message-buffer)
4725               (copy-to-buffer buffer (point-min) (point-max))
4726               (set-buffer buffer)
4727               (unwind-protect
4728                   (let ((ps-left-header
4729                          (list (concat "(" wl-ps-subject ")")
4730                                (concat "(" wl-ps-from ")")))
4731                         (ps-right-header
4732                          (list "/pagenumberstring load"
4733                                (concat "(" wl-ps-date ")"))))
4734                     (run-hooks 'wl-ps-print-hook)
4735                     (funcall wl-ps-print-buffer-function filename))
4736                 (kill-buffer buffer)))))
4737       (message ""))))
4738
4739 (if (featurep 'ps-print) ; ps-print is available.
4740     (fset 'wl-summary-print-message 'wl-summary-print-message-with-ps-print))
4741
4742 (defun wl-summary-target-mark-print ()
4743   (interactive)
4744   (if (null wl-summary-buffer-target-mark-list)
4745       (message "No marked message.")
4746     (when (y-or-n-p "Print all marked messages. OK? ")
4747       (while (car wl-summary-buffer-target-mark-list)
4748         (let ((num (car wl-summary-buffer-target-mark-list)))
4749           (wl-thread-jump-to-msg num)
4750           (wl-summary-print-message)
4751           (wl-summary-unmark))))))
4752
4753 (defun wl-summary-folder-info-update ()
4754   (wl-folder-set-folder-updated
4755    (elmo-string (wl-summary-buffer-folder-name))
4756    (list 0
4757          (+ wl-summary-buffer-unread-count
4758             wl-summary-buffer-new-count)
4759          (elmo-folder-length
4760           wl-summary-buffer-elmo-folder))))
4761
4762 (defun wl-summary-get-original-buffer ()
4763   "Get original buffer for the current summary."
4764   (save-excursion
4765     (wl-summary-set-message-buffer-or-redisplay)
4766     (wl-message-get-original-buffer)))
4767
4768 (defun wl-summary-pack-number (&optional arg)
4769   (interactive "P")
4770   (elmo-folder-pack-numbers wl-summary-buffer-elmo-folder)
4771   (let (wl-use-scoring)
4772     (wl-summary-rescan nil nil t)))
4773
4774 (defun wl-summary-target-mark-uudecode ()
4775   (interactive)
4776   (let ((mlist (reverse wl-summary-buffer-target-mark-list))
4777         (summary-buf (current-buffer))
4778         (tmp-buf (get-buffer-create "*WL UUENCODE*"))
4779         orig-buf i k filename rc errmsg)
4780     (setq i 1)
4781     (setq k (length mlist))
4782     (set-buffer tmp-buf)
4783     (erase-buffer)
4784     (save-window-excursion
4785       (while mlist
4786         (set-buffer summary-buf)
4787         (wl-summary-jump-to-msg (car mlist))
4788         (wl-summary-redisplay)
4789         (set-buffer (setq orig-buf (wl-summary-get-original-buffer)))
4790         (goto-char (point-min))
4791         (cond ((= i 1) ; first
4792                (if (setq filename (wl-message-uu-substring
4793                                    orig-buf tmp-buf t
4794                                    (= i k)))
4795                    nil
4796                  (error "Can't find begin line")))
4797               ((< i k)
4798                (wl-message-uu-substring orig-buf tmp-buf))
4799               (t ; last
4800                (wl-message-uu-substring orig-buf tmp-buf nil t)))
4801         (setq i (1+ i))
4802         (setq mlist (cdr mlist)))
4803       (set-buffer tmp-buf)
4804       (message "Exec %s..." wl-prog-uudecode)
4805       (unwind-protect
4806           (let ((decode-dir wl-temporary-file-directory))
4807             (if (not wl-prog-uudecode-no-stdout-option)
4808                 (setq filename (read-file-name "Save to file: "
4809                                                (expand-file-name
4810                                                 (elmo-safe-filename filename)
4811                                                 wl-temporary-file-directory)))
4812               (setq decode-dir
4813                     (wl-read-directory-name "Save to directory: "
4814                                             wl-temporary-file-directory))
4815               (setq filename (expand-file-name filename decode-dir)))
4816             (if (file-exists-p filename)
4817                 (or (yes-or-no-p (format "File %s exists. Save anyway? "
4818                                          filename))
4819                     (error "")))
4820             (elmo-bind-directory
4821              decode-dir
4822              (setq rc
4823                    (as-binary-process
4824                     (apply 'call-process-region (point-min) (point-max)
4825                            wl-prog-uudecode t (current-buffer) nil
4826                            wl-prog-uudecode-arg))))
4827             (when (not (= 0 rc))
4828               (setq errmsg (buffer-substring (point-min)(point-max)))
4829               (error "Uudecode error: %s" errmsg))
4830             (if (not wl-prog-uudecode-no-stdout-option)
4831                 (let (file-name-handler-alist) ;; void jka-compr
4832                   (as-binary-output-file
4833                    (write-region (point-min) (point-max)
4834                                  filename nil 'no-msg))))
4835             (save-excursion
4836               (set-buffer summary-buf)
4837               (wl-summary-delete-all-temp-marks))
4838             (if (file-exists-p filename)
4839                 (message "Saved as %s" filename)))
4840         (kill-buffer tmp-buf)))))
4841
4842 ;; Someday
4843 ;; (defun wl-summary-drop-unsync ()
4844 ;;   "Drop all unsync messages."
4845 ;;   (interactive)
4846 ;;   (if (elmo-folder-pipe-p (wl-summary-buffer-folder-name))
4847 ;;       (error "You cannot drop unsync messages in this folder"))
4848 ;;   (if (or (not (interactive-p))
4849 ;;        (y-or-n-p "Drop all unsync messages? "))
4850 ;;       (let* ((folder-list (elmo-folder-get-primitive-folder-list
4851 ;;                         (wl-summary-buffer-folder-name)))
4852 ;;           (is-multi (elmo-multi-p (wl-summary-buffer-folder-name)))
4853 ;;           (sum 0)
4854 ;;           (multi-num 0)
4855 ;;           pair)
4856 ;;      (message "Dropping...")
4857 ;;      (while folder-list
4858 ;;        (setq pair (elmo-folder-message-numbers (car folder-list)))
4859 ;;        (when is-multi ;; dirty hack...
4860 ;;          (incf multi-num)
4861 ;;          (setcar pair (+ (* multi-num elmo-multi-divide-number)
4862 ;;                          (car pair))))
4863 ;;        (elmo-msgdb-set-number-alist
4864 ;;         (wl-summary-buffer-msgdb)
4865 ;;         (nconc
4866 ;;          (elmo-msgdb-get-number-alist (wl-summary-buffer-msgdb))
4867 ;;          (list (cons (car pair) nil))))
4868 ;;        (setq sum (+ sum (cdr pair)))
4869 ;;        (setq folder-list (cdr folder-list)))
4870 ;;      (wl-summary-set-message-modified)
4871 ;;      (wl-folder-set-folder-updated (wl-summary-buffer-folder-name)
4872 ;;                                    (list 0
4873 ;;                                          (+ wl-summary-buffer-unread-count
4874 ;;                                             wl-summary-buffer-new-count)
4875 ;;                                          sum))
4876 ;;      (message "Dropping...done"))))
4877
4878 (defun wl-summary-default-get-next-msg (msg)
4879   (or (wl-summary-next-message msg
4880                                (if wl-summary-move-direction-downward 'down
4881                                  'up)
4882                                nil)
4883       (cadr (memq msg (if wl-summary-move-direction-downward
4884                           wl-summary-buffer-number-list
4885                         (reverse wl-summary-buffer-number-list))))))
4886
4887 (defun wl-summary-save-current-message ()
4888   "Save current message for `wl-summary-yank-saved-message'."
4889   (interactive)
4890   (let ((number (wl-summary-message-number)))
4891     (setq wl-summary-buffer-saved-message number)
4892     (and number (message "No: %s is saved." number))))
4893
4894 (defun wl-summary-yank-saved-message ()
4895   "Set current message as a parent of the saved message."
4896   (interactive)
4897   (if wl-summary-buffer-saved-message
4898       (let ((number (wl-summary-message-number)))
4899         (if (eq wl-summary-buffer-saved-message number)
4900             (message "Cannot set itself as a parent.")
4901           (save-excursion
4902             (wl-thread-jump-to-msg wl-summary-buffer-saved-message)
4903             (wl-thread-set-parent number)
4904             (wl-summary-set-thread-modified))
4905           (setq  wl-summary-buffer-saved-message nil)))
4906     (message "There's no saved message.")))
4907
4908 (defun wl-summary-toggle-header-narrowing ()
4909   "Toggle message header narrowing."
4910   (interactive)
4911   (when wl-message-use-header-narrowing
4912     (save-selected-window
4913       (let* ((mbuf wl-message-buffer)
4914              (mwin (when mbuf (get-buffer-window mbuf)))
4915              (wpos (when mwin (window-start mwin))))
4916         (when mbuf
4917           (set-buffer mbuf)
4918           (wl-message-header-narrowing-toggle)
4919           (and wpos (set-window-start mwin wpos)))))))
4920
4921 (autoload 'elmo-folder-list-global-flag-messages "elmo-flag")
4922
4923 (require 'product)
4924 (product-provide (provide 'wl-summary) (require 'wl-version))
4925
4926 ;;; wl-summary.el ends here