wl/wl-message.el

   1 ;;; wl-message.el -- Message displaying modules for Wanderlust.
   2
   3 ;; Copyright (C) 1998,1999,2000 Yuuichi Teranishi <teranisi@gohome.org>
   4
   5 ;; Author: Yuuichi Teranishi <teranisi@gohome.org>
   6 ;; Keywords: mail, net news
   7
   8 ;; This file is part of Wanderlust (Yet Another Message Interface on Emacsen).
   9
  10 ;; This program is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14 ;;
  15 ;; This program is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19 ;;
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24 ;;
  25
  26 ;;; Commentary:
  27 ;;
  28
  29 ;;; Code:
  30 ;;
  31
  32 (require 'wl-vars)
  33 (require 'wl-highlight)
  34
  35 (eval-when-compile
  36   (if wl-use-semi
  37       (progn
  38         (require 'wl-mime)
  39         (require 'mime-view)
  40         (require 'mmelmo-imap4))
  41     (require 'tm-wl))
  42   (defalias-maybe 'event-window 'ignore)
  43   (defalias-maybe 'posn-window 'ignore)
  44   (defalias-maybe 'event-start 'ignore)
  45   (defalias-maybe 'mime-open-entity 'ignore))
  46
  47 (defvar wl-original-buf-name "*Message*")
  48 (defvar wl-message-buf-name "Message")
  49 (defvar wl-message-buffer-cur-summary-buffer nil)
  50 (defvar wl-message-buffer-cur-folder nil)
  51 (defvar wl-message-buffer-cur-number nil)
  52
  53 (defvar wl-original-buffer-cur-folder nil)
  54 (defvar wl-original-buffer-cur-number nil)
  55 (defvar wl-original-buffer-cur-msgdb  nil)
  56
  57 (defvar mmelmo-imap4-skipped-parts)
  58
  59 (make-variable-buffer-local 'wl-message-buffer-cur-folder)
  60 (make-variable-buffer-local 'wl-message-buffer-cur-number)
  61
  62 (defvar wl-fixed-window-configuration nil)
  63
  64 (defun wl-message-buffer-window ()
  65   (let* ((mes-buf (concat "^" (default-value 'wl-message-buf-name)))
  66          (start-win (selected-window))
  67          (cur-win start-win))
  68     (catch 'found
  69       (while (progn
  70                (setq cur-win (next-window cur-win))
  71                (if (string-match mes-buf (buffer-name (window-buffer cur-win)))
  72                    (throw 'found cur-win))
  73                (not (eq cur-win start-win)))))))
  74
  75 (defun wl-select-buffer (buffer)
  76   (let ((gbw (or (get-buffer-window buffer)
  77                  (wl-message-buffer-window)))
  78         (sum (car wl-message-window-size))
  79         (mes (cdr wl-message-window-size))
  80         whi)
  81     (when (and gbw
  82                (not (eq (save-excursion (set-buffer (window-buffer gbw))
  83                                         wl-message-buffer-cur-summary-buffer)
  84                         (current-buffer))))
  85       (delete-window gbw)
  86       (run-hooks 'wl-message-window-deleted-hook)
  87       (setq gbw nil))
  88     (if gbw
  89         (select-window gbw)
  90 ;;;   (if (or (null mes)
  91 ;;;           wl-stay-folder-window)
  92 ;;;       (delete-other-windows))
  93       (when wl-fixed-window-configuration
  94         (delete-other-windows)
  95         (and wl-stay-folder-window
  96              (wl-summary-toggle-disp-folder)))
  97       (setq whi (1- (window-height)))
  98       (if mes
  99           (progn
 100             (let ((total (+ sum mes)))
 101               (setq sum (max window-min-height (/ (* whi sum) total)))
 102               (setq mes (max window-min-height (/ (* whi mes) total))))
 103             (if (< whi (+ sum mes))
 104                 (enlarge-window (- (+ sum mes) whi)))))
 105       (split-window (get-buffer-window (current-buffer)) sum)
 106       (other-window 1))
 107     (switch-to-buffer buffer)))
 108
 109 ;;
 110 ;; called by wl-summary-mode buffer
 111 ;;
 112 (defvar wl-message-func-called-hook nil)
 113
 114 (defun wl-message-scroll-down (amount)
 115   (let ((view-message-buffer (get-buffer-create wl-message-buf-name))
 116         (cur-buf (current-buffer)))
 117     (wl-select-buffer view-message-buffer)
 118     (if (bobp)
 119         ()
 120       (scroll-down))
 121     (select-window (get-buffer-window cur-buf))))
 122
 123 (defun wl-message-scroll-up (amount)
 124   (let ((view-message-buffer (get-buffer-create wl-message-buf-name))
 125         (cur-buf (current-buffer)))
 126     (wl-select-buffer view-message-buffer)
 127     (save-excursion
 128       (save-restriction
 129         (widen)
 130         (forward-page 1)
 131         (if (pos-visible-in-window-p (point))
 132             (wl-message-narrow-to-page 1)))) ; Go to next page.
 133     (if (eobp)
 134         ()
 135       (scroll-up))
 136     (select-window (get-buffer-window cur-buf))))
 137
 138 (defun wl-message-follow-current-entity (buffer)
 139   "Follow to current message."
 140   (wl-draft-reply (wl-message-get-original-buffer)
 141                   nil wl-message-buffer-cur-summary-buffer) ; reply to all
 142   (let ((mail-reply-buffer buffer))
 143     (wl-draft-yank-from-mail-reply-buffer nil)))
 144
 145 (defun wl-message-original-mode ()
 146   (setq major-mode 'wl-message-original-mode)
 147   (setq mode-name "Original")
 148   (setq buffer-read-only t)
 149   (if (fboundp 'set-buffer-file-coding-system)
 150       (set-buffer-file-coding-system wl-cs-noconv)))
 151
 152 (defun wl-message-mode ()
 153   (interactive)
 154   (setq major-mode 'wl-message-mode)
 155   (setq buffer-read-only t)
 156   (setq mode-name "Message"))
 157
 158 (defun wl-message-get-buffer-create ()
 159   (let ((buf-name wl-message-buf-name))
 160     (or (get-buffer buf-name)
 161         (save-excursion
 162           (set-buffer (get-buffer-create buf-name))
 163           (wl-message-mode)
 164           (run-hooks 'wl-message-buffer-created-hook)
 165           (get-buffer buf-name)))))
 166
 167 (defun wl-message-original-get-buffer-create ()
 168   (or (get-buffer wl-original-buf-name)
 169       (save-excursion
 170         (set-buffer (get-buffer-create wl-original-buf-name))
 171         (wl-message-original-mode)
 172         (get-buffer wl-original-buf-name))))
 173
 174 (defun wl-message-exit ()
 175   (interactive)
 176   (let (summary-buf summary-win)
 177     (if (setq summary-buf wl-message-buffer-cur-summary-buffer)
 178         (if (setq summary-win (get-buffer-window summary-buf))
 179             (select-window summary-win)
 180           (switch-to-buffer summary-buf)
 181           (wl-select-buffer wl-message-buf-name)
 182           (select-window (get-buffer-window summary-buf))))
 183     (run-hooks 'wl-message-exit-hook)))
 184
 185 (defvar wl-message-mode-map nil)
 186 (if wl-message-mode-map
 187     ()
 188   (setq wl-message-mode-map (make-sparse-keymap))
 189   (define-key wl-message-mode-map "q" 'wl-message-exit)
 190   (define-key wl-message-mode-map "n" 'wl-message-exit)
 191   (define-key wl-message-mode-map "p" 'wl-message-exit))
 192
 193 (defun wl-message-decode (outbuf inbuf flag)
 194   (cond
 195    ((eq flag 'all-header)
 196     (save-excursion
 197       (set-buffer inbuf)
 198       (let ((buffer-read-only nil))
 199         (decode-mime-charset-region (point-min)
 200                                     (save-excursion
 201                                       (goto-char (point-min))
 202                                       (re-search-forward "^$" nil t)
 203                                       (point))
 204                                     wl-mime-charset)))
 205     (wl-message-decode-with-all-header outbuf inbuf))
 206    ((eq flag 'no-mime)
 207     (save-excursion
 208       (set-buffer inbuf)
 209       (let ((buffer-read-only nil))
 210         (save-excursion
 211           (set-buffer outbuf)
 212           (elmo-set-buffer-multibyte nil))
 213         (copy-to-buffer outbuf (point-min) (point-max))
 214         (set-buffer outbuf)
 215         (use-local-map wl-message-mode-map)
 216         (elmo-set-buffer-multibyte default-enable-multibyte-characters)
 217 ;;;     (decode-mime-charset-region (point-min) (point-max) wl-mime-charset)
 218         ;; we can call decode-coding-region() directly, because multibyte flag is t.
 219         (decode-coding-region (point-min) (point-max) wl-cs-autoconv)
 220         (wl-highlight-message (point-min)
 221                               (save-excursion
 222                                 (goto-char (point-min))
 223                                 (re-search-forward "^$" nil t)) nil))))
 224    (t                                   ; normal
 225     (save-excursion
 226       (set-buffer inbuf)
 227       (let ((buffer-read-only nil))
 228         (decode-mime-charset-region (point-min)
 229                                     (save-excursion
 230                                       (goto-char (point-min))
 231                                       (re-search-forward "^$" nil t)
 232                                       (point))
 233                                     wl-mime-charset)))
 234     (wl-message-decode-mode outbuf inbuf))))
 235
 236 (defun wl-message-prev-page (&optional lines)
 237   "Scroll down this message.  Returns non-nil if top of message."
 238   (interactive)
 239   (let ((cur-buf (current-buffer))
 240         (view-message-buffer (get-buffer-create wl-message-buf-name))
 241         ret-val)
 242     (wl-select-buffer view-message-buffer)
 243     (move-to-window-line 0)
 244     (if (and wl-break-pages
 245              (bobp)
 246              (not (save-restriction (widen) (bobp))))
 247         (progn
 248           (wl-message-narrow-to-page -1)
 249           (goto-char (point-max))
 250           (recenter -1))
 251       (if (not (bobp))
 252           (scroll-down lines)
 253         (setq ret-val t)))
 254     (select-window (get-buffer-window cur-buf))
 255     ret-val))
 256
 257 (static-if (fboundp 'luna-make-entity)
 258     (defsubst wl-message-make-mime-entity (backend number backend folder msgdb)
 259       (luna-make-entity (mm-expand-class-name 'elmo)
 260                         :location (get-buffer-create
 261                                    (concat mmelmo-entity-buffer-name "0"))
 262                         :imap (eq backend 'elmo-imap4)
 263                         :folder folder
 264                         :number number
 265                         :msgdb msgdb :size 0))
 266   (defsubst wl-message-make-mime-entity (backend number backend folder msgdb)
 267     (mime-open-entity backend (list folder number msgdb nil))))
 268
 269 (defun wl-message-next-page (&optional lines)
 270   "Scroll up this message.  Returns non-nil if bottom of message."
 271   (interactive)
 272   (let ((cur-buf (current-buffer))
 273         (view-message-buffer (get-buffer-create wl-message-buf-name))
 274         ret-val)
 275     (wl-select-buffer view-message-buffer)
 276     (move-to-window-line -1)
 277     (if (save-excursion
 278           (end-of-line)
 279           (and (pos-visible-in-window-p)
 280                (eobp)))
 281         (if (or (null wl-break-pages)
 282                 (save-excursion
 283                   (save-restriction
 284                     (widen) (forward-line) (eobp))))
 285             (setq ret-val t)
 286           (wl-message-narrow-to-page 1)
 287           (setq ret-val nil))
 288       (condition-case ()
 289           (scroll-up lines)
 290         (end-of-buffer
 291          (goto-char (point-max))))
 292       (setq ret-val nil))
 293     (select-window (get-buffer-window cur-buf))
 294     ret-val
 295     ))
 296
 297 (defun wl-message-narrow-to-page (&optional arg)
 298   (interactive "P")
 299   (setq arg (if arg (prefix-numeric-value arg) 0))
 300   (save-excursion
 301     (condition-case ()
 302         (forward-page -1)               ; Beginning of current page.
 303       (beginning-of-buffer
 304        (goto-char (point-min))))
 305     (forward-char 1)  ; for compatibility with emacs-19.28 and emacs-19.29
 306     (widen)
 307     (cond
 308      ((> arg 0) (forward-page arg))
 309      ((< arg 0) (forward-page (1- arg))))
 310     (forward-page)
 311     (if wl-break-pages
 312         (narrow-to-region (point)
 313                           (progn
 314                             (forward-page -1)
 315                             (if (and (eolp) (not (bobp)))
 316                                 (forward-line))
 317                             (point)))) ))
 318
 319 (defun wl-message-toggle-disp-summary ()
 320   (interactive)
 321   (let ((summary-buf (get-buffer wl-message-buffer-cur-summary-buffer))
 322         summary-win)
 323     (if (and summary-buf
 324              (buffer-live-p summary-buf))
 325         (if (setq summary-win (get-buffer-window summary-buf))
 326             (delete-window summary-win)
 327           (switch-to-buffer summary-buf)
 328           (wl-select-buffer wl-message-buf-name))
 329       (wl-summary-goto-folder-subr wl-message-buffer-cur-folder 'no-sync
 330                                    nil nil t)
 331                                         ; no summary-buf
 332       (let ((sum-buf (current-buffer)))
 333         (wl-select-buffer wl-message-buf-name)
 334         (setq wl-message-buffer-cur-summary-buffer sum-buf)))))
 335
 336 (defun wl-message-normal-get-original-buffer ()
 337   (let ((ret-val (get-buffer wl-original-buf-name)))
 338     (if (not ret-val)
 339         (save-excursion
 340           (set-buffer (setq ret-val
 341                             (get-buffer-create wl-original-buf-name)))
 342           (wl-message-original-mode)))
 343     ret-val))
 344
 345
 346 (if wl-use-semi
 347     (defalias 'wl-message-get-original-buffer
 348       'mmelmo-get-original-buffer)
 349   (defalias 'wl-message-get-original-buffer
 350     'wl-message-normal-get-original-buffer))
 351
 352 (defvar wl-message-redisplay-func 'wl-normal-message-redisplay)
 353 (defvar wl-message-cache-used nil) ;whether cache is used or not.
 354
 355 (defun wl-message-redisplay (folder number flag msgdb &optional force-reload)
 356   (let ((default-mime-charset wl-mime-charset)
 357         (buffer-read-only nil))
 358     (setq wl-message-cache-used nil)
 359     (if wl-message-redisplay-func
 360         (funcall wl-message-redisplay-func
 361                  folder number flag msgdb force-reload))))
 362
 363 ;; nil means don't fetch all.
 364 (defun wl-message-decide-backend (folder number message-id size)
 365   (let ((dont-do-that (and
 366                        (not (setq wl-message-cache-used
 367                                   (or
 368                                    (elmo-buffer-cache-hit
 369                                     (list folder number message-id))
 370                                    (elmo-cache-exists-p message-id
 371                                                         folder number))))
 372                        (integerp size)
 373                        (not (elmo-local-file-p folder number))
 374                        wl-fetch-confirm-threshold
 375                        (>= size wl-fetch-confirm-threshold)
 376                        (not (y-or-n-p
 377                              (format "Fetch entire message? (%dbytes)"
 378                                      size))))))
 379     (message "")
 380     (cond ((and dont-do-that
 381                 (eq (elmo-folder-number-get-type folder number) 'imap4)
 382                 (not (and (elmo-use-cache-p folder number)
 383                           (elmo-cache-exists-p message-id folder number))))
 384            'elmo-imap4)
 385           (t (if (not dont-do-that) 'elmo)))))
 386
 387 (defmacro wl-message-original-buffer-folder ()
 388   wl-original-buffer-cur-folder)
 389
 390 (defmacro wl-message-original-buffer-number ()
 391   wl-original-buffer-cur-number)
 392
 393 (defun wl-message-set-original-buffer-information (folder number)
 394   (when (or (not (string= folder (or wl-original-buffer-cur-folder "")))
 395             (not (eq number (or wl-original-buffer-cur-number 0))))
 396     (setq wl-original-buffer-cur-folder folder)
 397     (setq wl-original-buffer-cur-number number)))
 398
 399 ;; Works on FLIM-1.9.0/SEMI-1.8.2 or later (maybe).
 400 (defun wl-mmelmo-message-redisplay (folder number flag msgdb
 401                                            &optional force-reload)
 402   (let* ((cur-buf (current-buffer))
 403          (view-message-buffer (wl-message-get-buffer-create))
 404          (message-id (cdr (assq number
 405                                 (elmo-msgdb-get-number-alist msgdb))))
 406          (size (elmo-msgdb-overview-entity-get-size
 407                 (elmo-msgdb-overview-get-entity number msgdb)))
 408          (backend (wl-message-decide-backend folder number message-id size))
 409          cur-entity ret-val header-end real-fld-num summary-win)
 410     (require 'mmelmo)
 411     (wl-select-buffer view-message-buffer)
 412     (set-buffer view-message-buffer)
 413     (unwind-protect
 414         (progn
 415           (setq wl-message-buffer-cur-summary-buffer cur-buf)
 416           (setq wl-message-buffer-cur-folder folder)
 417           (setq wl-message-buffer-cur-number number)
 418           (setq buffer-read-only nil)
 419           (erase-buffer)
 420           (if backend
 421               (let (mime-display-header-hook ;; bind to nil...
 422                     (wl-message-ignored-field-list
 423                      (if (eq flag 'all-header)
 424                          nil
 425                        wl-message-ignored-field-list))
 426                     (mmelmo-force-reload force-reload)
 427                     (mmelmo-imap4-threshold wl-fetch-confirm-threshold))
 428                 (setq real-fld-num (elmo-get-real-folder-number
 429                                     folder number))
 430                 (setq cur-entity
 431                       (wl-message-make-mime-entity
 432                        backend
 433                        (if (eq backend 'elmo-imap4)
 434                            (cdr real-fld-num)
 435                          number)
 436                        backend
 437                        (if (eq backend 'elmo-imap4)
 438                            (car real-fld-num)
 439                          folder)
 440                        msgdb))
 441                 (setq mmelmo-imap4-skipped-parts nil)
 442                 ;; mime-display-message sets buffer-read-only variable as t.
 443                 ;; which makes buffer read-only status confused...
 444                 (mime-display-message cur-entity view-message-buffer
 445                                       nil nil 'mmelmo-original-mode)
 446                 (if mmelmo-imap4-skipped-parts
 447                     (progn
 448                       (message "Skipped fetching of %s."
 449                                (mapconcat
 450                                 (lambda (x)
 451                                   (format "[%s]" x))
 452                                 mmelmo-imap4-skipped-parts ","))))
 453                 (if (and (eq backend 'elmo-imap4)
 454                          (null mmelmo-imap4-skipped-parts))
 455                     (message "No required part was skipped."))
 456                 (setq ret-val (not (eq backend 'elmo-imap4))))
 457             (message "Skipped fetching.")
 458             (setq ret-val nil)))
 459       (setq buffer-read-only nil)
 460       (wl-message-set-original-buffer-information folder number)
 461       (wl-message-overload-functions)
 462       ;; highlight body
 463       (when wl-highlight-body-too
 464         (wl-highlight-body))
 465       (condition-case ()
 466           (wl-message-narrow-to-page)
 467         (error nil));; ignore errors.
 468       (setq mode-line-buffer-identification
 469             (format "Wanderlust: << %s / %s >>"
 470                     (if (memq 'modeline wl-use-folder-petname)
 471                         (wl-folder-get-petname folder)
 472                       folder) number))
 473       (goto-char (point-min))
 474       (unwind-protect
 475           (save-excursion
 476             (run-hooks 'wl-message-redisplay-hook))
 477         ;; go back to summary mode
 478         (set-buffer-modified-p nil)
 479         (setq buffer-read-only t)
 480         (set-buffer cur-buf)
 481         (setq summary-win (get-buffer-window cur-buf))
 482         (if (window-live-p summary-win)
 483             (select-window summary-win))))
 484     ret-val
 485     ))
 486
 487 (defun wl-normal-message-redisplay (folder number flag msgdb
 488                                            &optional force-reload)
 489   (interactive)
 490   (let* ((cur-buf (current-buffer))
 491          (original-message-buffer (wl-message-get-original-buffer))
 492          (view-message-buffer (wl-message-get-buffer-create))
 493          (message-id (cdr (assq number
 494                                 (elmo-msgdb-get-number-alist msgdb))))
 495          (size (elmo-msgdb-overview-entity-get-size
 496                 (elmo-msgdb-overview-get-entity number msgdb)))
 497          header-end ret-val summary-win)
 498     (wl-select-buffer view-message-buffer)
 499     (unwind-protect
 500         (progn
 501           (setq wl-message-buffer-cur-summary-buffer cur-buf)
 502           (setq wl-message-buffer-cur-folder folder)
 503           (setq wl-message-buffer-cur-number number)
 504           (setq buffer-read-only nil)
 505           (erase-buffer)
 506           (if (or (eq (elmo-folder-number-get-type folder number) 'localdir)
 507                   (not (and (integerp size)
 508                             wl-fetch-confirm-threshold
 509                             (>= size wl-fetch-confirm-threshold)
 510                             (not (elmo-cache-exists-p message-id
 511                                                       folder number))
 512                             (not (y-or-n-p
 513                                   (format "Fetch entire message? (%dbytes)"
 514                                           size))))))
 515               (progn
 516                 (save-excursion
 517                   (set-buffer original-message-buffer)
 518                   (let ((buffer-read-only nil))
 519                     (elmo-read-msg-with-buffer-cache
 520                      folder number original-message-buffer msgdb force-reload)))
 521                 ;; decode MIME message.
 522                 (wl-message-decode
 523                  view-message-buffer
 524                  original-message-buffer flag)
 525                 (setq ret-val t))
 526             (save-excursion
 527               (set-buffer view-message-buffer)
 528               (insert "\n\n"))))
 529       (setq buffer-read-only nil)
 530       (wl-message-set-original-buffer-information folder number)
 531       (wl-message-overload-functions)
 532       ;; highlight body
 533       (and wl-highlight-body-too (wl-highlight-body))
 534       (condition-case ()
 535           (wl-message-narrow-to-page)
 536         (error nil)) ; ignore errors.
 537       (setq mode-line-buffer-identification
 538             (format "Wanderlust: << %s / %s >>"
 539                     (if (memq 'modeline wl-use-folder-petname)
 540                         (wl-folder-get-petname folder)
 541                       folder)
 542                     number))
 543       (goto-char (point-min))
 544       (unwind-protect
 545           (run-hooks 'wl-message-redisplay-hook)
 546         ;; go back to summary mode
 547         (set-buffer-modified-p nil)
 548         (setq buffer-read-only t)
 549         (set-buffer cur-buf)
 550         (setq summary-win (get-buffer-window cur-buf))
 551         (if (window-live-p summary-win)
 552             (select-window summary-win)))
 553       ret-val
 554       )))
 555
 556 (defvar wl-message-button-map (make-sparse-keymap))
 557
 558 (defun wl-message-add-button (from to function &optional data)
 559   "Create a button between FROM and TO with callback FUNCTION and DATA."
 560   (add-text-properties
 561    from to
 562    (nconc (list 'wl-message-button-callback function)
 563           (if data
 564               (list 'wl-message-button-data data))))
 565   (let ((ov (make-overlay from to)))
 566     (overlay-put ov 'mouse-face 'highlight)
 567     (overlay-put ov 'local-map wl-message-button-map)
 568     (overlay-put ov 'evaporate t)))
 569
 570 (defun wl-message-button-dispatcher (event)
 571   "Select the button under point."
 572   (interactive "@e")
 573   (mouse-set-point event)
 574   (let ((callback (get-text-property (point) 'wl-message-button-callback))
 575         (data (get-text-property (point) 'wl-message-button-data)))
 576     (if callback
 577         (funcall callback data)
 578       (wl-message-button-dispatcher-internal event))))
 579
 580 (defun wl-message-button-refer-article (data)
 581   "Read article specified by Message-ID DATA at point."
 582   (switch-to-buffer-other-window
 583    wl-message-buffer-cur-summary-buffer)
 584   (if (wl-summary-jump-to-msg-by-message-id data)
 585       (wl-summary-redisplay)))
 586
 587 (defun wl-message-refer-article-or-url (e)
 588   "Read article specified by message-id around point.
 589 If failed, attempt to execute button-dispatcher."
 590   (interactive "e")
 591   (let ((window (get-buffer-window (current-buffer)))
 592         mouse-window point beg end msg-id)
 593     (unwind-protect
 594         (progn
 595           (mouse-set-point e)
 596           (setq mouse-window (get-buffer-window (current-buffer)))
 597           (setq point (point))
 598           (setq beg (save-excursion (beginning-of-line) (point)))
 599           (setq end (save-excursion (end-of-line) (point)))
 600           (search-forward ">" end t)      ;Move point to end of "<....>".
 601           (if (and (re-search-backward "\\(<[^<> \t\n]+@[^<> \t\n]+>\\)"
 602                                        beg t)
 603                    (not (string-match "mailto:"
 604                                       (setq msg-id (wl-match-buffer 1)))))
 605               (progn
 606                 (goto-char point)
 607                 (switch-to-buffer-other-window
 608                  wl-message-buffer-cur-summary-buffer)
 609                 (if (wl-summary-jump-to-msg-by-message-id msg-id)
 610                     (wl-summary-redisplay)))
 611             (wl-message-button-dispatcher-internal e)))
 612       (if (eq mouse-window (get-buffer-window (current-buffer)))
 613           (select-window window)))))
 614
 615 (defun wl-message-uu-substring (buf outbuf &optional first last)
 616   (save-excursion
 617     (set-buffer buf)
 618     (search-forward "\n\n")
 619     (let ((sp (point))
 620           ep filename case-fold-search)
 621       (catch 'done
 622         (if first
 623             (progn
 624               (if (re-search-forward "^begin[ \t]+[0-9]+[ \t]+\\([^ ].*\\)" nil t)
 625                   (setq filename (buffer-substring (match-beginning 1)(match-end 1)))
 626                 (throw 'done nil)))
 627           (re-search-forward "^M.*$" nil t)) ; uuencoded string
 628         (beginning-of-line)
 629         (setq sp (point))
 630         (goto-char (point-max))
 631         (if last
 632             (re-search-backward "^end" sp t)
 633           (re-search-backward "^M.*$" sp t)) ; uuencoded string
 634         (forward-line 1)
 635         (setq ep (point))
 636         (set-buffer outbuf)
 637         (goto-char (point-max))
 638         (insert-buffer-substring buf sp ep)
 639         (set-buffer buf)
 640         filename))))
 641
 642 (require 'product)
 643 (product-provide (provide 'wl-message) (require 'wl-version))
 644
 645 ;;; wl-message.el ends here