mime-play.el

   1 ;;; mime-play.el --- Playback processing module for mime-view.el
   2
   3 ;; Copyright (C) 1994,1995,1996,1997,1998 Free Software Foundation, Inc.
   4
   5 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
   6 ;; Created: 1995/9/26 (separated from tm-view.el)
   7 ;;      Renamed: 1997/2/21 from tm-play.el
   8 ;; Keywords: MIME, multimedia, mail, news
   9
  10 ;; This file is part of SEMI (Secretariat of Emacs MIME Interfaces).
  11
  12 ;; This program is free software; you can redistribute it and/or
  13 ;; modify it under the terms of the GNU General Public License as
  14 ;; published by the Free Software Foundation; either version 2, or (at
  15 ;; your option) any later version.
  16
  17 ;; This program is distributed in the hope that it will be useful, but
  18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20 ;; General Public License for more details.
  21
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  24 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  25 ;; Boston, MA 02111-1307, USA.
  26
  27 ;;; Code:
  28
  29 (require 'mime-view)
  30 (require 'alist)
  31 (require 'filename)
  32
  33 (eval-when-compile
  34   (require 'mime-text)
  35   (condition-case nil
  36       (require 'bbdb)
  37     (error (defvar bbdb-buffer-name nil))
  38     ))
  39
  40 (defvar mime-acting-situation-examples nil)
  41
  42 (defun mime-save-acting-situation-examples ()
  43   (let* ((file mime-acting-situation-examples-file)
  44          (buffer (get-buffer-create " *mime-example*")))
  45     (unwind-protect
  46         (save-excursion
  47           (set-buffer buffer)
  48           (setq buffer-file-name file)
  49           (erase-buffer)
  50           (insert ";;; " (file-name-nondirectory file) "\n")
  51           (insert "\n;; This file is generated automatically by "
  52                   mime-view-version-string "\n\n")
  53           (insert ";;; Code:\n\n")
  54           (pp `(setq mime-acting-situation-examples
  55                      ',mime-acting-situation-examples)
  56               (current-buffer))
  57           (insert "\n;;; "
  58                   (file-name-nondirectory file)
  59                   " ends here.\n")
  60           (save-buffer))
  61       (kill-buffer buffer))))
  62
  63 (add-hook 'kill-emacs-hook 'mime-save-acting-situation-examples)
  64
  65
  66 ;;; @ content decoder
  67 ;;;
  68
  69 (defvar mime-preview-after-decoded-position nil)
  70
  71 (defun mime-preview-play-current-entity (&optional mode)
  72   "Play current entity.
  73 It decodes current entity to call internal or external method.  The
  74 method is selected from variable `mime-acting-condition'.
  75 If MODE is specified, play as it.  Default MODE is \"play\"."
  76   (interactive)
  77   (or mode
  78       (setq mode "play"))
  79   (let ((entity (get-text-property (point) 'mime-view-entity)))
  80     (if entity
  81         (let ((the-buf (current-buffer))
  82               (raw-buffer (mime-entity-buffer entity)))
  83           (setq mime-preview-after-decoded-position (point))
  84           (set-buffer raw-buffer)
  85           (mime-raw-play-entity entity mode)
  86           (when (eq (current-buffer) raw-buffer)
  87             (set-buffer the-buf)
  88             (goto-char mime-preview-after-decoded-position)
  89             )))))
  90
  91 (defun mime-sort-situation (situation)
  92   (sort situation
  93         #'(lambda (a b)
  94             (let ((a-t (car a))
  95                   (b-t (car b))
  96                   (order '((type . 1)
  97                            (subtype . 2)
  98                            (mode . 3)
  99                            (method . 4)
 100                            (major-mode . 5)
 101                            (disposition-type . 6)
 102                            ))
 103                   a-order b-order)
 104               (if (symbolp a-t)
 105                   (let ((ret (assq a-t order)))
 106                     (if ret
 107                         (setq a-order (cdr ret))
 108                       (setq a-order 7)
 109                       ))
 110                 (setq a-order 8)
 111                 )
 112               (if (symbolp b-t)
 113                   (let ((ret (assq b-t order)))
 114                     (if ret
 115                         (setq b-order (cdr ret))
 116                       (setq b-order 7)
 117                       ))
 118                 (setq b-order 8)
 119                 )
 120               (if (= a-order b-order)
 121                   (string< (format "%s" a-t)(format "%s" b-t))
 122                 (< a-order b-order))
 123               )))
 124   )
 125
 126 (defsubst mime-delq-null-situation (situations field)
 127   (let (dest)
 128     (while situations
 129       (let ((situation (car situations)))
 130         (if (assq field situation)
 131             (setq dest (cons situation dest))
 132           ))
 133       (setq situations (cdr situations)))
 134     dest))
 135
 136 (defun mime-raw-play-entity (entity &optional mode situation)
 137   "Play entity specified by ENTITY.
 138 It decodes the entity to call internal or external method.  The method
 139 is selected from variable `mime-acting-condition'.  If MODE is
 140 specified, play as it.  Default MODE is \"play\"."
 141   (let (method ret)
 142     (or situation
 143         (setq situation (mime-entity-situation entity)))
 144     (if mode
 145         (setq situation (cons (cons 'mode mode) situation))
 146       )
 147     (setq ret
 148           (or (ctree-match-calist mime-acting-situation-examples situation)
 149               (ctree-match-calist-partially mime-acting-situation-examples
 150                                             situation)
 151               situation))
 152     (setq ret
 153           (or (mime-delq-null-situation
 154                (ctree-find-calist mime-acting-condition ret
 155                                   mime-view-find-every-acting-situation)
 156                'method)
 157               (mime-delq-null-situation
 158                (ctree-find-calist mime-acting-condition situation
 159                                   mime-view-find-every-acting-situation)
 160                'method)
 161               ))
 162     (cond ((cdr ret)
 163            (setq ret (select-menu-alist
 164                       "Methods"
 165                       (mapcar (function
 166                                (lambda (situation)
 167                                  (cons
 168                                   (format "%s"
 169                                           (cdr (assq 'method situation)))
 170                                   situation)))
 171                               ret)))
 172            (setq ret (mime-sort-situation ret))
 173            (ctree-set-calist-strictly 'mime-acting-situation-examples ret)
 174            )
 175           (t
 176            (setq ret (car ret))
 177            ))
 178     (setq method (cdr (assq 'method ret)))
 179     (cond ((and (symbolp method)
 180                 (fboundp method))
 181            (funcall method entity ret)
 182            )
 183           ((stringp method)
 184            (mime-activate-mailcap-method entity ret)
 185            )
 186           ;; ((and (listp method)(stringp (car method)))
 187           ;;  (mime-activate-external-method entity ret)
 188           ;;  )
 189           (t
 190            (mime-show-echo-buffer "No method are specified for %s\n"
 191                                   (mime-entity-type/subtype entity))
 192            ))
 193     ))
 194
 195
 196 ;;; @ external decoder
 197 ;;;
 198
 199 (defvar mime-mailcap-method-filename-alist nil)
 200
 201 (defun mime-activate-mailcap-method (entity situation)
 202   (save-excursion
 203     (save-restriction
 204       (let ((start (mime-entity-point-min entity))
 205             (end (mime-entity-point-max entity)))
 206         (narrow-to-region start end)
 207         (goto-char start)
 208         (let ((method (cdr (assoc 'method situation)))
 209               (name (expand-file-name (mime-raw-get-filename situation)
 210                                       mime-temp-directory)))
 211           (mime-write-decoded-region (mime-entity-body-start entity) end
 212                                      name (cdr (assq 'encoding situation)))
 213           (message "External method is starting...")
 214           (let ((process
 215                  (let ((command
 216                         (mailcap-format-command
 217                          method
 218                          (cons (cons 'filename name) situation))))
 219                    (start-process command mime-echo-buffer-name
 220                                   shell-file-name shell-command-switch command)
 221                    )))
 222             (set-alist 'mime-mailcap-method-filename-alist process name)
 223             (set-process-sentinel process 'mime-mailcap-method-sentinel)
 224             )
 225           )))))
 226
 227 (defun mime-mailcap-method-sentinel (process event)
 228   (let ((file (cdr (assq process mime-mailcap-method-filename-alist))))
 229     (if (file-exists-p file)
 230         (delete-file file)
 231       ))
 232   (remove-alist 'mime-mailcap-method-filename-alist process)
 233   (message (format "%s %s" process event)))
 234
 235 ;; (defun mime-activate-external-method (entity cal)
 236 ;;   (save-excursion
 237 ;;     (save-restriction
 238 ;;       (let ((beg (mime-entity-point-min entity))
 239 ;;             (end (mime-entity-point-max entity)))
 240 ;;         (narrow-to-region beg end)
 241 ;;         (goto-char beg)
 242 ;;         (let ((method (cdr (assoc 'method cal)))
 243 ;;               (name (mime-raw-get-filename cal)))
 244 ;;           (if method
 245 ;;               (let ((file (make-temp-name
 246 ;;                            (expand-file-name "TM" mime-temp-directory)))
 247 ;;                     b args)
 248 ;;                 (if (nth 1 method)
 249 ;;                     (setq b beg)
 250 ;;                   (setq b (mime-entity-body-start entity)))
 251 ;;                 (goto-char b)
 252 ;;                 (write-region b end file)
 253 ;;                 (message "External method is starting...")
 254 ;;                 (setq cal (put-alist
 255 ;;                            'name (replace-as-filename name) cal))
 256 ;;                 (setq cal (put-alist 'file file cal))
 257 ;;                 (setq args (nconc
 258 ;;                             (list (car method)
 259 ;;                                   mime-echo-buffer-name (car method))
 260 ;;                             (mime-make-external-method-args
 261 ;;                              cal (cdr (cdr method)))
 262 ;;                             ))
 263 ;;                 (apply (function start-process) args)
 264 ;;                 (mime-show-echo-buffer)
 265 ;;                 ))
 266 ;;           )))))
 267
 268 ;; (defun mime-make-external-method-args (cal format)
 269 ;;   (mapcar (function
 270 ;;            (lambda (arg)
 271 ;;              (if (stringp arg)
 272 ;;                  arg
 273 ;;                (let* ((item (eval arg))
 274 ;;                       (ret (cdr (assoc item cal))))
 275 ;;                  (or ret
 276 ;;                      (if (eq item 'encoding)
 277 ;;                          "7bit"
 278 ;;                        ""))
 279 ;;                  ))))
 280 ;;           format))
 281
 282 (defvar mime-echo-window-is-shared-with-bbdb t
 283   "*If non-nil, mime-echo window is shared with BBDB window.")
 284
 285 (defvar mime-echo-window-height
 286   (function
 287    (lambda ()
 288      (/ (window-height) 5)
 289      ))
 290   "*Size of mime-echo window.
 291 It allows function or integer.  If it is function,
 292 `mime-show-echo-buffer' calls it to get height of mime-echo window.
 293 Otherwise `mime-show-echo-buffer' uses it as height of mime-echo
 294 window.")
 295
 296 (defun mime-show-echo-buffer (&rest forms)
 297   "Show mime-echo buffer to display MIME-playing information."
 298   (get-buffer-create mime-echo-buffer-name)
 299   (let ((the-win (selected-window))
 300         (win (get-buffer-window mime-echo-buffer-name))
 301         )
 302     (or win
 303         (if (and mime-echo-window-is-shared-with-bbdb
 304                  (boundp 'bbdb-buffer-name)
 305                  (setq win (get-buffer-window bbdb-buffer-name))
 306                  )
 307             (set-window-buffer win mime-echo-buffer-name)
 308           (select-window (get-buffer-window mime-preview-buffer))
 309           (setq win (split-window-vertically
 310                      (- (window-height)
 311                         (if (functionp mime-echo-window-height)
 312                             (funcall mime-echo-window-height)
 313                           mime-echo-window-height)
 314                         )))
 315           (set-window-buffer win mime-echo-buffer-name)
 316           ))
 317     (select-window win)
 318     (goto-char (point-max))
 319     (if forms
 320         (insert (apply (function format) forms))
 321       )
 322     (select-window the-win)
 323     ))
 324
 325
 326 ;;; @ file name
 327 ;;;
 328
 329 (defvar mime-view-file-name-char-regexp "[A-Za-z0-9+_-]")
 330
 331 (defvar mime-view-file-name-regexp-1
 332   (concat mime-view-file-name-char-regexp "+\\."
 333           mime-view-file-name-char-regexp "+"))
 334
 335 (defvar mime-view-file-name-regexp-2
 336   (concat (regexp-* mime-view-file-name-char-regexp)
 337           "\\(\\." mime-view-file-name-char-regexp "+\\)*"))
 338
 339 (defun mime-raw-get-original-filename (param)
 340   (or (if (member (cdr (assq 'encoding param))
 341                   mime-view-uuencode-encoding-name-list)
 342           (mime-raw-get-uu-filename))
 343       (let (ret)
 344         (or (if (or (and (setq ret (mime-read-Content-Disposition))
 345                          (setq ret
 346                                (assoc
 347                                 "filename"
 348                                 (mime-content-disposition-parameters ret)))
 349                          )
 350                     (setq ret (assoc "name" param))
 351                     (setq ret (assoc "x-name" param))
 352                     )
 353                 (std11-strip-quoted-string (cdr ret))
 354               )
 355             (if (setq ret
 356                       (std11-find-field-body '("Content-Description"
 357                                                "Subject")))
 358                 (if (or (string-match mime-view-file-name-regexp-1 ret)
 359                         (string-match mime-view-file-name-regexp-2 ret))
 360                     (substring ret (match-beginning 0)(match-end 0))
 361                   ))
 362             ))
 363       ))
 364
 365 (defun mime-raw-get-filename (param)
 366   (replace-as-filename (mime-raw-get-original-filename param))
 367   )
 368
 369
 370 ;;; @ file extraction
 371 ;;;
 372
 373 (defun mime-method-to-save (entity cal)
 374   (let ((beg (mime-entity-point-min entity))
 375         (end (mime-entity-point-max entity)))
 376     (goto-char beg)
 377     (let* ((name (save-restriction
 378                    (narrow-to-region beg end)
 379                    (mime-raw-get-filename cal)
 380                    ))
 381            (encoding (or (cdr (assq 'encoding cal)) "7bit"))
 382            (filename (if (and name (not (string-equal name "")))
 383                          (expand-file-name name
 384                                            (save-window-excursion
 385                                              (call-interactively
 386                                               (function
 387                                                (lambda (dir)
 388                                                  (interactive "DDirectory: ")
 389                                                  dir)))))
 390                        (save-window-excursion
 391                          (call-interactively
 392                           (function
 393                            (lambda (file)
 394                              (interactive "FFilename: ")
 395                              (expand-file-name file)))))))
 396            )
 397       (if (file-exists-p filename)
 398           (or (yes-or-no-p (format "File %s exists. Save anyway? " filename))
 399               (error "")))
 400       (re-search-forward "\n\n")
 401       (mime-write-decoded-region (match-end 0) end filename encoding)
 402       )))
 403
 404
 405 ;;; @ file detection
 406 ;;;
 407
 408 (defvar mime-file-content-type-alist
 409   '(("JPEG"     image jpeg)
 410     ("GIF"      image gif)
 411     )
 412   "*Alist of \"file\" output patterns vs. corresponding media-types.
 413 Each element looks like (REGEXP TYPE SUBTYPE).
 414 REGEXP is pattern for \"file\" command output.
 415 TYPE is symbol to indicate primary type of media-type.
 416 SUBTYPE is symbol to indicate subtype of media-type.")
 417
 418 (defun mime-method-to-detect (entity situation)
 419   (let ((beg (mime-entity-point-min entity))
 420         (end (mime-entity-point-max entity)))
 421     (goto-char beg)
 422     (let* ((name (save-restriction
 423                    (narrow-to-region beg end)
 424                    (mime-raw-get-filename situation)
 425                    ))
 426            (encoding (or (cdr (assq 'encoding situation)) "7bit"))
 427            (filename (if (and name (not (string-equal name "")))
 428                          (expand-file-name name mime-temp-directory)
 429                        (make-temp-name
 430                         (expand-file-name "EMI" mime-temp-directory)))))
 431       (mime-write-decoded-region (mime-entity-body-start entity) end
 432                                  filename encoding)
 433       (let (type subtype)
 434         (with-temp-buffer
 435           (call-process "file" nil t nil filename)
 436           (goto-char (point-min))
 437           (if (search-forward (concat filename ": ") nil t)
 438               (let ((rest mime-file-content-type-alist))
 439                 (while (not (let ((cell (car rest)))
 440                               (if (looking-at (car cell))
 441                                   (setq type (nth 1 cell)
 442                                         subtype (nth 2 cell))
 443                                 )))
 444                   (setq rest (cdr rest))))))
 445         (if type
 446             (mime-raw-play-entity
 447              entity "play"
 448              (put-alist 'type type
 449                         (put-alist 'subtype subtype
 450                                    (mime-entity-situation entity))))
 451           ))
 452       )))
 453
 454
 455 ;;; @ mail/news message
 456 ;;;
 457
 458 (defun mime-preview-quitting-method-for-mime-show-message-mode ()
 459   "Quitting method for mime-view.
 460 It is registered to variable `mime-preview-quitting-method-alist'."
 461   (let ((mother mime-mother-buffer)
 462         (win-conf mime-preview-original-window-configuration)
 463         )
 464     (kill-buffer mime-raw-buffer)
 465     (mime-preview-kill-buffer)
 466     (set-window-configuration win-conf)
 467     (pop-to-buffer mother)
 468     ))
 469
 470 (defun mime-method-to-display-message/rfc822 (entity cal)
 471   (let* ((beg (mime-entity-point-min entity))
 472          (end (mime-entity-point-max entity))
 473          (cnum (mime-raw-point-to-entity-number beg))
 474          (new-name (format "%s-%s" (buffer-name) cnum))
 475          (mother mime-preview-buffer)
 476          (representation-type
 477           (cdr (or (assq major-mode mime-raw-representation-type-alist)
 478                    (assq t mime-raw-representation-type-alist))))
 479          str)
 480     (setq str (buffer-substring beg end))
 481     (switch-to-buffer new-name)
 482     (erase-buffer)
 483     (insert str)
 484     (goto-char (point-min))
 485     (if (re-search-forward "^\n" nil t)
 486         (delete-region (point-min) (match-end 0))
 487       )
 488     (setq major-mode 'mime-show-message-mode)
 489     (setq mime-raw-representation-type representation-type)
 490     (mime-view-mode mother)
 491     ))
 492
 493
 494 ;;; @ message/partial
 495 ;;;
 496
 497 (defun mime-raw-write-region (start end filename)
 498   "Write current region into specified file.
 499 When called from a program, takes three arguments:
 500 START, END and FILENAME.  START and END are buffer positions.
 501 It refer `mime-raw-representation-type' or `major-mode
 502 mime-raw-representation-type-alist'.  If it is `binary', region is
 503 saved as binary.  Otherwise the region is saved by `write-region'."
 504   (let ((presentation-type
 505          (or mime-raw-representation-type
 506              (cdr (or (assq major-mode mime-raw-representation-type-alist)
 507                       (assq t mime-raw-representation-type-alist))))))
 508     (if (eq presentation-type 'binary)
 509         (write-region-as-binary start end filename)
 510       (write-region start end filename)
 511       )))
 512
 513 (defun mime-method-to-store-message/partial (entity cal)
 514   (goto-char (mime-entity-point-min entity))
 515   (let* ((root-dir
 516           (expand-file-name
 517            (concat "m-prts-" (user-login-name)) mime-temp-directory))
 518          (id (cdr (assoc "id" cal)))
 519          (number (cdr (assoc "number" cal)))
 520          (total (cdr (assoc "total" cal)))
 521          file
 522          (mother mime-preview-buffer)
 523          )
 524     (or (file-exists-p root-dir)
 525         (make-directory root-dir)
 526         )
 527     (setq id (replace-as-filename id))
 528     (setq root-dir (concat root-dir "/" id))
 529     (or (file-exists-p root-dir)
 530         (make-directory root-dir)
 531         )
 532     (setq file (concat root-dir "/FULL"))
 533     (if (file-exists-p file)
 534         (let ((full-buf (get-buffer-create "FULL"))
 535               (pwin (or (get-buffer-window mother)
 536                         (get-largest-window)))
 537               )
 538           (save-window-excursion
 539             (set-buffer full-buf)
 540             (erase-buffer)
 541             (as-binary-input-file (insert-file-contents file))
 542             (setq major-mode 'mime-show-message-mode)
 543             (mime-view-mode mother)
 544             )
 545           (set-window-buffer pwin
 546                              (save-excursion
 547                                (set-buffer full-buf)
 548                                mime-preview-buffer))
 549           (select-window pwin)
 550           )
 551       (re-search-forward "^$")
 552       (goto-char (1+ (match-end 0)))
 553       (setq file (concat root-dir "/" number))
 554       (mime-raw-write-region (point) (mime-entity-point-max entity) file)
 555       (let ((total-file (concat root-dir "/CT")))
 556         (setq total
 557               (if total
 558                   (progn
 559                     (or (file-exists-p total-file)
 560                         (save-excursion
 561                           (set-buffer
 562                            (get-buffer-create mime-temp-buffer-name))
 563                           (erase-buffer)
 564                           (insert total)
 565                           (write-region (point-min)(point-max) total-file)
 566                           (kill-buffer (current-buffer))
 567                           ))
 568                     (string-to-number total)
 569                     )
 570                 (and (file-exists-p total-file)
 571                      (save-excursion
 572                        (set-buffer (find-file-noselect total-file))
 573                        (prog1
 574                            (and (re-search-forward "[0-9]+" nil t)
 575                                 (string-to-number
 576                                  (buffer-substring (match-beginning 0)
 577                                                    (match-end 0)))
 578                                 )
 579                          (kill-buffer (current-buffer))
 580                          )))
 581                 )))
 582       (if (and total (> total 0))
 583           (catch 'tag
 584             (save-excursion
 585               (set-buffer (get-buffer-create mime-temp-buffer-name))
 586               (let ((full-buf (current-buffer)))
 587                 (erase-buffer)
 588                 (let ((i 1))
 589                   (while (<= i total)
 590                     (setq file (concat root-dir "/" (int-to-string i)))
 591                     (or (file-exists-p file)
 592                         (throw 'tag nil)
 593                         )
 594                     (as-binary-input-file (insert-file-contents file))
 595                     (goto-char (point-max))
 596                     (setq i (1+ i))
 597                     ))
 598                 (as-binary-output-file
 599                  (write-region (point-min)(point-max)
 600                                (expand-file-name "FULL" root-dir)))
 601                 (let ((i 1))
 602                   (while (<= i total)
 603                     (let ((file (format "%s/%d" root-dir i)))
 604                       (and (file-exists-p file)
 605                            (delete-file file)
 606                            ))
 607                     (setq i (1+ i))
 608                     ))
 609                 (let ((file (expand-file-name "CT" root-dir)))
 610                   (and (file-exists-p file)
 611                        (delete-file file)
 612                        ))
 613                 (save-window-excursion
 614                   (setq major-mode 'mime-show-message-mode)
 615                   (mime-view-mode mother)
 616                   )
 617                 (let ((pwin (or (get-buffer-window mother)
 618                                 (get-largest-window)
 619                                 ))
 620                       (pbuf (save-excursion
 621                               (set-buffer full-buf)
 622                               mime-preview-buffer)))
 623                   (set-window-buffer pwin pbuf)
 624                   (select-window pwin)
 625                   )))))
 626       )))
 627
 628
 629 ;;; @ message/external-body
 630 ;;;
 631
 632 (defvar mime-raw-dired-function
 633   (if (and (>= emacs-major-version 19) window-system)
 634       (function dired-other-frame)
 635     (function mime-raw-dired-function-for-one-frame)
 636     ))
 637
 638 (defun mime-raw-dired-function-for-one-frame (dir)
 639   (let ((win (or (get-buffer-window mime-preview-buffer)
 640                  (get-largest-window))))
 641     (select-window win)
 642     (dired dir)
 643     ))
 644
 645 (defun mime-method-to-display-message/external-ftp (entity cal)
 646   (let* ((site (cdr (assoc "site" cal)))
 647          (directory (cdr (assoc "directory" cal)))
 648          (name (cdr (assoc "name" cal)))
 649          (pathname (concat "/anonymous@" site ":" directory)))
 650     (message (concat "Accessing " (expand-file-name name pathname) "..."))
 651     (funcall mime-raw-dired-function pathname)
 652     (goto-char (point-min))
 653     (search-forward name)
 654     ))
 655
 656
 657 ;;; @ rot13-47
 658 ;;;
 659
 660 (defun mime-method-to-display-caesar (entity situation)
 661   "Internal method for mime-view to display ROT13-47-48 message."
 662   (let* ((new-name (format "%s-%s" (buffer-name)
 663                            (mime-entity-number entity)))
 664          (mother mime-preview-buffer))
 665     (let ((pwin (or (get-buffer-window mother)
 666                     (get-largest-window)))
 667           (buf (get-buffer-create new-name)))
 668       (set-window-buffer pwin buf)
 669       (set-buffer buf)
 670       (select-window pwin)
 671       )
 672     (setq buffer-read-only nil)
 673     (erase-buffer)
 674     (mime-text-insert-decoded-body entity)
 675     (mule-caesar-region (point-min) (point-max))
 676     (set-buffer-modified-p nil)
 677     (set-buffer mother)
 678     (view-buffer new-name)
 679     ))
 680
 681
 682 ;;; @ end
 683 ;;;
 684
 685 (provide 'mime-play)
 686
 687 (let* ((file mime-acting-situation-examples-file)
 688        (buffer (get-buffer-create " *mime-example*")))
 689   (if (file-readable-p file)
 690       (unwind-protect
 691           (save-excursion
 692             (set-buffer buffer)
 693             (erase-buffer)
 694             (insert-file-contents file)
 695             (eval-buffer)
 696             ;; format check
 697             (or (eq (car mime-acting-situation-examples) 'type)
 698                 (setq mime-acting-situation-examples nil))
 699             )
 700         (kill-buffer buffer))))
 701
 702 ;;; mime-play.el ends here