mime-view.el

   1 ;;; mime-view.el --- interactive MIME viewer for GNU Emacs
   2
   3 ;; Copyright (C) 1995,96,97,98,99,2000 Free Software Foundation, Inc.
   4
   5 ;; Author: MORIOKA Tomohiko <tomo@m17n.org>
   6 ;; Created: 1994/07/13
   7 ;;      Renamed: 1994/08/31 from tm-body.el
   8 ;;      Renamed: 1997/02/19 from tm-view.el
   9 ;; Keywords: MIME, multimedia, mail, news
  10
  11 ;; This file is part of SEMI (Sample of Elastic MIME Interfaces).
  12
  13 ;; This program is free software; you can redistribute it and/or
  14 ;; modify it under the terms of the GNU General Public License as
  15 ;; published by the Free Software Foundation; either version 2, or (at
  16 ;; your option) any later version.
  17
  18 ;; This program is distributed in the hope that it will be useful, but
  19 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
  20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21 ;; General Public License for more details.
  22
  23 ;; You should have received a copy of the GNU General Public License
  24 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  25 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  26 ;; Boston, MA 02111-1307, USA.
  27
  28 ;;; Code:
  29
  30 (require 'mime)
  31 (require 'semi-def)
  32 (require 'calist)
  33 (require 'alist)
  34 (require 'mime-conf)
  35 (require 'mcharset)
  36
  37 (eval-when-compile (require 'static))
  38
  39
  40 ;;; @ version
  41 ;;;
  42
  43 (defconst mime-view-version
  44   (concat (mime-product-name mime-user-interface-product) " MIME-View "
  45           (mapconcat #'number-to-string
  46                      (mime-product-version mime-user-interface-product) ".")
  47           " (" (mime-product-code-name mime-user-interface-product) ")"))
  48
  49
  50 ;;; @ variables
  51 ;;;
  52
  53 (defgroup mime-view nil
  54   "MIME view mode"
  55   :group 'mime)
  56
  57 (defcustom mime-situation-examples-file "~/.mime-example"
  58   "*File name of situation-examples demonstrated by user."
  59   :group 'mime-view
  60   :type 'file)
  61
  62 (defcustom mime-preview-move-scroll nil
  63   "*Decides whether to scroll when moving to next entity.
  64 When t, scroll the buffer. Non-nil but not t means scroll when
  65 the next entity is within next-screen-context-lines from top or
  66 buttom. Nil means don't scroll at all."
  67   :group 'mime-view
  68   :type '(choice (const :tag "Off" nil)
  69                  (const :tag "On" t)
  70                  (sexp :tag "Situation" 1)))
  71
  72 (defcustom mime-view-mailcap-files
  73   (let ((files '("/etc/mailcap" "/usr/etc/mailcap" "~/.mailcap")))
  74     (or (member mime-mailcap-file files)
  75         (setq files (cons mime-mailcap-file files)))
  76     files)
  77   "List of mailcap files."
  78   :group 'mime-view
  79   :type '(repeat file))
  80
  81 (defvar mime-view-automatic-conversion 'undecided)
  82
  83
  84 ;;; @ in raw-buffer (representation space)
  85 ;;;
  86
  87 (defvar mime-preview-buffer nil
  88   "MIME-preview buffer corresponding with the (raw) buffer.")
  89 (make-variable-buffer-local 'mime-preview-buffer)
  90
  91
  92 (defvar mime-raw-representation-type-alist
  93   '((mime-show-message-mode     . binary)
  94     (mime-temp-message-mode     . binary)
  95     (t                          . cooked))
  96   "Alist of major-mode vs. representation-type of mime-raw-buffer.
  97 Each element looks like (SYMBOL . REPRESENTATION-TYPE).  SYMBOL is
  98 major-mode or t.  t means default.  REPRESENTATION-TYPE must be
  99 `binary' or `cooked'.")
 100
 101
 102 ;;; @ in preview-buffer (presentation space)
 103 ;;;
 104
 105 (defvar mime-mother-buffer nil
 106   "Mother buffer corresponding with the (MIME-preview) buffer.
 107 If current MIME-preview buffer is generated by other buffer, such as
 108 message/partial, it is called `mother-buffer'.")
 109 (make-variable-buffer-local 'mime-mother-buffer)
 110
 111 ;; (defvar mime-raw-buffer nil
 112 ;;   "Raw buffer corresponding with the (MIME-preview) buffer.")
 113 ;; (make-variable-buffer-local 'mime-raw-buffer)
 114
 115 (defvar mime-preview-original-window-configuration nil
 116   "Window-configuration before mime-view-mode is called.")
 117 (make-variable-buffer-local 'mime-preview-original-window-configuration)
 118
 119 (defun mime-preview-original-major-mode (&optional recursive point)
 120   "Return major-mode of original buffer.
 121 If optional argument RECURSIVE is non-nil and current buffer has
 122 mime-mother-buffer, it returns original major-mode of the
 123 mother-buffer."
 124   (if (and recursive mime-mother-buffer)
 125       (save-excursion
 126         (set-buffer mime-mother-buffer)
 127         (mime-preview-original-major-mode recursive))
 128     (cdr (assq 'major-mode
 129                (get-text-property (or point
 130                                       (if (> (point) (buffer-size))
 131                                           (max (1- (point-max)) (point-min))
 132                                         (point)))
 133                                   'mime-view-situation)))))
 134
 135
 136 ;;; @ entity information
 137 ;;;
 138
 139 (defun mime-entity-situation (entity &optional situation)
 140   "Return situation of ENTITY."
 141   (let (rest param name)
 142     ;; Content-Type
 143     (unless (assq 'type situation)
 144       (setq rest (or (mime-entity-content-type entity)
 145                      (make-mime-content-type 'text 'plain))
 146             situation (cons (car rest) situation)
 147             rest (cdr rest)))
 148     (unless (assq 'subtype situation)
 149       (or rest
 150           (setq rest (or (cdr (mime-entity-content-type entity))
 151                          '((subtype . plain)))))
 152       (setq situation (cons (car rest) situation)
 153             rest (cdr rest)))
 154     (while rest
 155       (setq param (car rest))
 156       (or (assoc (car param) situation)
 157           (setq situation (cons param situation)))
 158       (setq rest (cdr rest)))
 159
 160     ;; Content-Disposition
 161     (setq rest nil)
 162     (unless (assq 'disposition-type situation)
 163       (setq rest (mime-entity-content-disposition entity))
 164       (if rest
 165           (setq situation (cons (cons 'disposition-type
 166                                       (mime-content-disposition-type rest))
 167                                 situation)
 168                 rest (mime-content-disposition-parameters rest))))
 169     (while rest
 170       (setq param (car rest)
 171             name (car param))
 172       (if (cond ((string= name "filename")
 173                  (if (assq 'filename situation)
 174                      nil
 175                    (setq name 'filename)))
 176                 ((string= name "creation-date")
 177                  (if (assq 'creation-date situation)
 178                      nil
 179                    (setq name 'creation-date)))
 180                 ((string= name "modification-date")
 181                  (if (assq 'modification-date situation)
 182                      nil
 183                    (setq name 'modification-date)))
 184                 ((string= name "read-date")
 185                  (if (assq 'read-date situation)
 186                      nil
 187                    (setq name 'read-date)))
 188                 ((string= name "size")
 189                  (if (assq 'size situation)
 190                      nil
 191                    (setq name 'size)))
 192                 (t (setq name (cons 'disposition name))
 193                    (if (assoc name situation)
 194                        nil
 195                      name)))
 196           (setq situation
 197                 (cons (cons name (cdr param))
 198                       situation)))
 199       (setq rest (cdr rest)))
 200
 201     ;; Content-Transfer-Encoding
 202     (or (assq 'encoding situation)
 203         (setq situation
 204               (cons (cons 'encoding (or (mime-entity-encoding entity)
 205                                         "7bit"))
 206                     situation)))
 207
 208     situation))
 209
 210 (defsubst mime-delq-null-situation (situations field
 211                                                &rest ignored-values)
 212   (let (dest)
 213     (while situations
 214       (let* ((situation (car situations))
 215              (cell (assq field situation)))
 216         (if cell
 217             (or (memq (cdr cell) ignored-values)
 218                 (setq dest (cons situation dest)))))
 219       (setq situations (cdr situations)))
 220     dest))
 221
 222 (defun mime-compare-situation-with-example (situation example)
 223   (let ((example (copy-alist example))
 224         (match 0))
 225     (while situation
 226       (let* ((cell (car situation))
 227              (key (car cell))
 228              (ecell (assoc key example)))
 229         (when ecell
 230           (if (equal cell ecell)
 231               (setq match (1+ match))
 232             (setq example (delq ecell example)))))
 233       (setq situation (cdr situation)))
 234     (cons match example)))
 235
 236 (defun mime-sort-situation (situation)
 237   (sort situation
 238         #'(lambda (a b)
 239             (let ((a-t (car a))
 240                   (b-t (car b))
 241                   (order '((type . 1)
 242                            (subtype . 2)
 243                            (mode . 3)
 244                            (method . 4)
 245                            (major-mode . 5)
 246                            (disposition-type . 6)))
 247                   a-order b-order)
 248               (if (symbolp a-t)
 249                   (let ((ret (assq a-t order)))
 250                     (if ret
 251                         (setq a-order (cdr ret))
 252                       (setq a-order 7)))
 253                 (setq a-order 8))
 254               (if (symbolp b-t)
 255                   (let ((ret (assq b-t order)))
 256                     (if ret
 257                         (setq b-order (cdr ret))
 258                       (setq b-order 7)))
 259                 (setq b-order 8))
 260               (if (= a-order b-order)
 261                   (string< (format "%s" a-t)(format "%s" b-t))
 262                 (< a-order b-order))))))
 263
 264 (defun mime-unify-situations (entity-situation
 265                               condition situation-examples
 266                               &optional required-name ignored-value
 267                               every-situations)
 268   (let (ret)
 269     (in-calist-package 'mime-view)
 270     (setq ret
 271           (ctree-find-calist condition entity-situation
 272                              every-situations))
 273     (if required-name
 274         (setq ret (mime-delq-null-situation ret required-name
 275                                             ignored-value t)))
 276     (or (assq 'ignore-examples entity-situation)
 277         (if (cdr ret)
 278             (let ((rest ret)
 279                   (max-score 0)
 280                   (max-escore 0)
 281                   max-examples
 282                   max-situations)
 283               (while rest
 284                 (let ((situation (car rest))
 285                       (examples situation-examples))
 286                   (while examples
 287                     (let* ((ret
 288                             (mime-compare-situation-with-example
 289                              situation (caar examples)))
 290                            (ret-score (car ret)))
 291                       (cond ((> ret-score max-score)
 292                              (setq max-score ret-score
 293                                    max-escore (cdar examples)
 294                                    max-examples (list (cdr ret))
 295                                    max-situations (list situation)))
 296                             ((= ret-score max-score)
 297                              (cond ((> (cdar examples) max-escore)
 298                                     (setq max-escore (cdar examples)
 299                                           max-examples (list (cdr ret))
 300                                           max-situations (list situation)))
 301                                    ((= (cdar examples) max-escore)
 302                                     (setq max-examples
 303                                           (cons (cdr ret) max-examples))
 304                                     (or (member situation max-situations)
 305                                         (setq max-situations
 306                                               (cons situation max-situations))))))))
 307                     (setq examples (cdr examples))))
 308                 (setq rest (cdr rest)))
 309               (when max-situations
 310                 (setq ret max-situations)
 311                 (while max-examples
 312                   (let* ((example (car max-examples))
 313                          (cell
 314                           (assoc example situation-examples)))
 315                     (if cell
 316                         (setcdr cell (1+ (cdr cell)))
 317                       (setq situation-examples
 318                             (cons (cons example 0)
 319                                   situation-examples))))
 320                   (setq max-examples (cdr max-examples)))))))
 321     (cons ret situation-examples)
 322     ;; ret: list of situations
 323     ;; situation-examples: new examples (notoce that contents of
 324     ;;                     argument `situation-examples' has bees modified)
 325     ))
 326
 327 (defun mime-view-entity-title (entity)
 328   (or (mime-entity-read-field entity 'Content-Description)
 329       (mime-entity-read-field entity 'Subject)
 330       (mime-entity-filename entity)
 331       ""))
 332
 333 (defvar mime-preview-situation-example-list nil)
 334 (defvar mime-preview-situation-example-list-max-size 16)
 335 ;; (defvar mime-preview-situation-example-condition nil)
 336
 337 (defun mime-find-entity-preview-situation (entity
 338                                            &optional default-situation)
 339   (or (let ((ret
 340              (mime-unify-situations
 341               (append (mime-entity-situation entity)
 342                       default-situation)
 343               mime-preview-condition
 344               mime-preview-situation-example-list)))
 345         (setq mime-preview-situation-example-list
 346               (cdr ret))
 347         (caar ret))
 348       default-situation))
 349
 350
 351 (defvar mime-acting-situation-example-list nil)
 352 (defvar mime-acting-situation-example-list-max-size 16)
 353 (defvar mime-situation-examples-file-coding-system nil)
 354
 355 (defun mime-view-read-situation-examples-file (&optional file)
 356   (or file
 357       (setq file mime-situation-examples-file))
 358   (if (and file
 359            (file-readable-p file))
 360       (with-temp-buffer
 361         (insert-file-contents file)
 362         (setq mime-situation-examples-file-coding-system
 363               (static-cond
 364                ((boundp 'buffer-file-coding-system)
 365                 (symbol-value 'buffer-file-coding-system))
 366                ((boundp 'file-coding-system)
 367                 (symbol-value 'file-coding-system))
 368                (t nil))
 369               ;; (and (boundp 'buffer-file-coding-system)
 370               ;;      buffer-file-coding-system)
 371               )
 372         (condition-case error
 373             (eval-buffer)
 374           (error (message "%s is broken: %s" file (cdr error))))
 375         ;; format check
 376         (condition-case nil
 377             (let ((i 0))
 378               (while (and (> (length mime-preview-situation-example-list)
 379                              mime-preview-situation-example-list-max-size)
 380                           (< i 16))
 381                 (setq mime-preview-situation-example-list
 382                       (mime-reduce-situation-examples
 383                        mime-preview-situation-example-list))
 384                 (setq i (1+ i))))
 385           (error (setq mime-preview-situation-example-list nil)))
 386         ;; (let ((rest mime-preview-situation-example-list))
 387         ;;   (while rest
 388         ;;     (ctree-set-calist-strictly 'mime-preview-condition
 389         ;;                                (caar rest))
 390         ;;     (setq rest (cdr rest))))
 391         (condition-case nil
 392             (let ((i 0))
 393               (while (and (> (length mime-acting-situation-example-list)
 394                              mime-acting-situation-example-list-max-size)
 395                           (< i 16))
 396                 (setq mime-acting-situation-example-list
 397                       (mime-reduce-situation-examples
 398                        mime-acting-situation-example-list))
 399                 (setq i (1+ i))))
 400           (error (setq mime-acting-situation-example-list nil))))))
 401
 402 (defun mime-save-situation-examples ()
 403   (if (or mime-preview-situation-example-list
 404           mime-acting-situation-example-list)
 405       (let ((file mime-situation-examples-file)
 406             print-length print-level)
 407         (with-temp-buffer
 408           (insert ";;; " (file-name-nondirectory file) "\n")
 409           (insert "\n;; This file is generated automatically by "
 410                   mime-view-version "\n\n")
 411           (insert ";;; Code:\n\n")
 412           (if mime-preview-situation-example-list
 413               (pp `(setq mime-preview-situation-example-list
 414                          ',mime-preview-situation-example-list)
 415                   (current-buffer)))
 416           (if mime-acting-situation-example-list
 417               (pp `(setq mime-acting-situation-example-list
 418                          ',mime-acting-situation-example-list)
 419                   (current-buffer)))
 420           (insert "\n;;; "
 421                   (file-name-nondirectory file)
 422                   " ends here.\n")
 423           (static-cond
 424            ((boundp 'buffer-file-coding-system)
 425             (setq buffer-file-coding-system
 426                   mime-situation-examples-file-coding-system))
 427            ((boundp 'file-coding-system)
 428             (setq file-coding-system
 429                   mime-situation-examples-file-coding-system)))
 430           ;; (setq buffer-file-coding-system
 431           ;;       mime-situation-examples-file-coding-system)
 432           (setq buffer-file-name file)
 433           (save-buffer)))))
 434
 435 (add-hook 'kill-emacs-hook 'mime-save-situation-examples)
 436
 437 (defun mime-reduce-situation-examples (situation-examples)
 438   (let ((len (length situation-examples))
 439         i ir ic j jr jc ret
 440         dest d-i d-j
 441         (max-sim 0) sim
 442         min-det-ret det-ret
 443         min-det-org det-org
 444         min-freq freq)
 445     (setq i 0
 446           ir situation-examples)
 447     (while (< i len)
 448       (setq ic (car ir)
 449             j 0
 450             jr situation-examples)
 451       (while (< j len)
 452         (unless (= i j)
 453           (setq jc (car jr))
 454           (setq ret (mime-compare-situation-with-example (car ic)(car jc))
 455                 sim (car ret)
 456                 det-ret (+ (length (car ic))(length (car jc)))
 457                 det-org (length (cdr ret))
 458                 freq (+ (cdr ic)(cdr jc)))
 459           (cond ((< max-sim sim)
 460                  (setq max-sim sim
 461                        min-det-ret det-ret
 462                        min-det-org det-org
 463                        min-freq freq
 464                        d-i i
 465                        d-j j
 466                        dest (cons (cdr ret) freq)))
 467                 ((= max-sim sim)
 468                  (cond ((> min-det-ret det-ret)
 469                         (setq min-det-ret det-ret
 470                               min-det-org det-org
 471                               min-freq freq
 472                               d-i i
 473                               d-j j
 474                               dest (cons (cdr ret) freq)))
 475                        ((= min-det-ret det-ret)
 476                         (cond ((> min-det-org det-org)
 477                                (setq min-det-org det-org
 478                                      min-freq freq
 479                                      d-i i
 480                                      d-j j
 481                                      dest (cons (cdr ret) freq)))
 482                               ((= min-det-org det-org)
 483                                (cond ((> min-freq freq)
 484                                       (setq min-freq freq
 485                                             d-i i
 486                                             d-j j
 487                                             dest (cons (cdr ret) freq)))))))))))
 488         (setq jr (cdr jr)
 489               j (1+ j)))
 490       (setq ir (cdr ir)
 491             i (1+ i)))
 492     (if (> d-i d-j)
 493         (setq i d-i
 494               d-i d-j
 495               d-j i))
 496     (setq jr (nthcdr (1- d-j) situation-examples))
 497     (setcdr jr (cddr jr))
 498     (if (= d-i 0)
 499         (setq situation-examples
 500               (cdr situation-examples))
 501       (setq ir (nthcdr (1- d-i) situation-examples))
 502       (setcdr ir (cddr ir)))
 503     (if (setq ir (assoc (car dest) situation-examples))
 504         (progn
 505           (setcdr ir (+ (cdr ir)(cdr dest)))
 506           situation-examples)
 507       (cons dest situation-examples)
 508       ;; situation-examples may be modified.
 509       )))
 510
 511
 512 ;;; @ presentation of preview
 513 ;;;
 514
 515 ;;; @@ entity-button
 516 ;;;
 517
 518 ;;; @@@ predicate function
 519 ;;;
 520
 521 ;; (defun mime-view-entity-button-visible-p (entity)
 522 ;;   "Return non-nil if header of ENTITY is visible.
 523 ;; Please redefine this function if you want to change default setting."
 524 ;;   (let ((media-type (mime-entity-media-type entity))
 525 ;;         (media-subtype (mime-entity-media-subtype entity)))
 526 ;;     (or (not (eq media-type 'application))
 527 ;;         (and (not (eq media-subtype 'x-selection))
 528 ;;              (or (not (eq media-subtype 'octet-stream))
 529 ;;                  (let ((mother-entity (mime-entity-parent entity)))
 530 ;;                    (or (not (eq (mime-entity-media-type mother-entity)
 531 ;;                                 'multipart))
 532 ;;                        (not (eq (mime-entity-media-subtype mother-entity)
 533 ;;                                 'encrypted)))
 534 ;;                    )
 535 ;;                  )))))
 536
 537 ;;; @@@ entity button generator
 538 ;;;
 539
 540 (defun mime-view-insert-entity-button (entity)
 541   "Insert entity-button of ENTITY."
 542   (let ((entity-node-id (mime-entity-node-id entity))
 543         (params (mime-entity-parameters entity))
 544         (subject (mime-view-entity-title entity)))
 545     (mime-insert-button
 546      (let ((access-type (assoc "access-type" params))
 547            (num (or (cdr (assoc "x-part-number" params))
 548                     (if (consp entity-node-id)
 549                         (mapconcat (function
 550                                     (lambda (num)
 551                                       (format "%s" (1+ num))))
 552                                    (reverse entity-node-id) ".")
 553                       "0"))))
 554        (cond (access-type
 555               (let ((server (assoc "server" params)))
 556                 (setq access-type (cdr access-type))
 557                 (if server
 558                     (format "%s %s ([%s] %s)"
 559                             num subject access-type (cdr server))
 560                 (let ((site (cdr (assoc "site" params)))
 561                       (dir (cdr (assoc "directory" params)))
 562                       (url (cdr (assoc "url" params))))
 563                   (if url
 564                       (format "%s %s ([%s] %s)"
 565                               num subject access-type url)
 566                     (format "%s %s ([%s] %s:%s)"
 567                             num subject access-type site dir))))))
 568            (t
 569             (let ((media-type (mime-entity-media-type entity))
 570                   (media-subtype (mime-entity-media-subtype entity))
 571                   (charset (cdr (assoc "charset" params)))
 572                   (encoding (mime-entity-encoding entity)))
 573               (concat
 574                num " " subject
 575                (let ((rest
 576                       (format " <%s/%s%s%s>"
 577                               media-type media-subtype
 578                               (if charset
 579                                   (concat "; " charset)
 580                                 "")
 581                               (if encoding
 582                                   (concat " (" encoding ")")
 583                                 ""))))
 584                  (if (>= (+ (current-column)(length rest))(window-width))
 585                      "\n\t")
 586                  rest))))))
 587      (function mime-preview-play-current-entity))))
 588
 589
 590 ;;; @@ entity-header
 591 ;;;
 592
 593 (defvar mime-header-presentation-method-alist nil
 594   "Alist of major mode vs. corresponding header-presentation-method functions.
 595 Each element looks like (SYMBOL . FUNCTION).
 596 SYMBOL must be major mode in raw-buffer or t.  t means default.
 597 Interface of FUNCTION must be (ENTITY SITUATION).")
 598
 599 (defvar mime-view-ignored-field-list
 600   '(".*Received:" ".*Path:" ".*Id:" "^References:"
 601     "^Replied:" "^Errors-To:"
 602     "^Lines:" "^Sender:" ".*Host:" "^Xref:"
 603     "^Content-Type:" "^Precedence:"
 604     "^Status:" "^X-VM-.*:")
 605   "All fields that match this list will be hidden in MIME preview buffer.
 606 Each elements are regexp of field-name.")
 607
 608 (defvar mime-view-visible-field-list '("^Dnas.*:" "^Message-Id:")
 609   "All fields that match this list will be displayed in MIME preview buffer.
 610 Each elements are regexp of field-name.")
 611
 612
 613 ;;; @@ entity-body
 614 ;;;
 615
 616 ;;; @@@ predicate function
 617 ;;;
 618
 619 (in-calist-package 'mime-view)
 620
 621 (defun mime-calist::field-match-method-as-default-rule (calist
 622                                                         field-type field-value)
 623   (let ((s-field (assq field-type calist)))
 624     (cond ((null s-field)
 625            (cons (cons field-type field-value) calist))
 626           (t calist))))
 627
 628 (define-calist-field-match-method
 629   'header #'mime-calist::field-match-method-as-default-rule)
 630
 631 (define-calist-field-match-method
 632   'body #'mime-calist::field-match-method-as-default-rule)
 633
 634
 635 (defvar mime-preview-condition nil
 636   "Condition-tree about how to display entity.")
 637
 638 (ctree-set-calist-strictly
 639  'mime-preview-condition '((type . application)(subtype . octet-stream)
 640                            (encoding . nil)
 641                            (body . visible)))
 642 (ctree-set-calist-strictly
 643  'mime-preview-condition '((type . application)(subtype . octet-stream)
 644                            (encoding . "7bit")
 645                            (body . visible)))
 646 (ctree-set-calist-strictly
 647  'mime-preview-condition '((type . application)(subtype . octet-stream)
 648                            (encoding . "8bit")
 649                            (body . visible)))
 650
 651 (ctree-set-calist-strictly
 652  'mime-preview-condition '((type . application)(subtype . pgp)
 653                            (body . visible)))
 654
 655 (ctree-set-calist-strictly
 656  'mime-preview-condition '((type . application)(subtype . x-latex)
 657                            (body . visible)))
 658
 659 (ctree-set-calist-strictly
 660  'mime-preview-condition '((type . application)(subtype . x-selection)
 661                            (body . visible)))
 662
 663 (ctree-set-calist-strictly
 664  'mime-preview-condition '((type . application)(subtype . x-comment)
 665                            (body . visible)))
 666
 667 (ctree-set-calist-strictly
 668  'mime-preview-condition '((type . message)(subtype . delivery-status)
 669                            (body . visible)))
 670
 671 (ctree-set-calist-strictly
 672  'mime-preview-condition
 673  '((body . visible)
 674    (body-presentation-method . mime-display-text/plain)))
 675
 676 (defvar mime-preview-fill-flowed-text
 677   (module-installed-p 'flow-fill)
 678   "If non-nil, fill RFC2646 \"flowed\" text.")
 679
 680 (autoload 'fill-flowed "flow-fill")
 681
 682 (defvar mime-preview-inline-fontify t
 683   "If non-nil, fontify the inline part.")
 684
 685 (ctree-set-calist-strictly
 686  'mime-preview-condition
 687  '((type . nil)
 688    (body . visible)
 689    (body-presentation-method . mime-display-text/plain)))
 690
 691 (ctree-set-calist-strictly
 692  'mime-preview-condition
 693  '((type . text)(subtype . enriched)
 694    (body . visible)
 695    (body-presentation-method . mime-display-text/enriched)))
 696
 697 (ctree-set-calist-strictly
 698  'mime-preview-condition
 699  '((type . text)(subtype . richtext)
 700    (body . visible)
 701    (body-presentation-method . mime-display-text/richtext)))
 702
 703 (autoload 'mime-display-application/x-postpet "postpet")
 704
 705 (ctree-set-calist-strictly
 706  'mime-preview-condition
 707  '((type . application)(subtype . x-postpet)
 708    (body . visible)
 709    (body-presentation-method . mime-display-application/x-postpet)))
 710
 711 (ctree-set-calist-strictly
 712  'mime-preview-condition
 713  '((type . application)(subtype . emacs-lisp)
 714    (body . visible)
 715    (body-presentation-method . mime-display-application/emacs-lisp)))
 716
 717 (ctree-set-calist-strictly
 718  'mime-preview-condition
 719  '((type . text)(subtype . t)
 720    (body . visible)
 721    (body-presentation-method . mime-display-text/plain)))
 722
 723 (ctree-set-calist-strictly
 724  'mime-preview-condition
 725  '((type . multipart)(subtype . alternative)
 726    (body . visible)
 727    (body-presentation-method . mime-display-multipart/alternative)))
 728
 729 (ctree-set-calist-strictly
 730  'mime-preview-condition
 731  '((type . multipart)(subtype . related)
 732    (body . visible)
 733    (body-presentation-method . mime-display-multipart/related)))
 734
 735 (ctree-set-calist-strictly
 736  'mime-preview-condition
 737  '((type . multipart)(subtype . t)
 738    (body . visible)
 739    (body-presentation-method . mime-display-multipart/mixed)))
 740
 741 (ctree-set-calist-strictly
 742  'mime-preview-condition
 743  '((type . message)(subtype . partial)
 744    (body . visible)
 745    (body-presentation-method . mime-display-message/partial-button)))
 746
 747 (ctree-set-calist-strictly
 748  'mime-preview-condition
 749  '((type . message)(subtype . rfc822)
 750    (body . visible)
 751    (body-presentation-method . mime-display-multipart/mixed)
 752    (childrens-situation (header . visible)
 753                         (entity-button . invisible))))
 754
 755 (ctree-set-calist-strictly
 756  'mime-preview-condition
 757  '((type . message)(subtype . news)
 758    (body . visible)
 759    (body-presentation-method . mime-display-multipart/mixed)
 760    (childrens-situation (header . visible)
 761                         (entity-button . invisible))))
 762
 763
 764 ;;; @@@ entity presentation
 765 ;;;
 766
 767 (defun mime-display-text/plain (entity situation)
 768   (save-restriction
 769     (narrow-to-region (point-max)(point-max))
 770     (condition-case nil
 771         (if (and mime-preview-inline-fontify
 772                  (mime-entity-filename entity)) ;should be an attachment.
 773             (mime-view-insert-fontified-text-content entity situation)
 774           (mime-view-insert-text-content entity situation))
 775       (error (progn
 776                (message "Can't decode current entity.")
 777                (sit-for 1))))
 778     (run-hooks 'mime-text-decode-hook)
 779     (goto-char (point-max))
 780     (if (not (eq (char-after (1- (point))) ?\n))
 781         (insert "\n"))
 782     (if (and mime-preview-fill-flowed-text
 783              (equal (cdr (assoc "format" situation)) "flowed"))
 784         (fill-flowed))
 785     (mime-add-url-buttons)
 786     (run-hooks 'mime-display-text/plain-hook)))
 787
 788 (defun mime-display-text/richtext (entity situation)
 789   (save-restriction
 790     (narrow-to-region (point-max)(point-max))
 791     (mime-view-insert-text-content entity situation)
 792     (run-hooks 'mime-text-decode-hook)
 793     (let ((beg (point-min)))
 794       (remove-text-properties beg (point-max) '(face nil))
 795       (richtext-decode beg (point-max)))))
 796
 797 (defun mime-display-text/enriched (entity situation)
 798   (save-restriction
 799     (narrow-to-region (point-max)(point-max))
 800     (mime-view-insert-text-content entity situation)
 801     (run-hooks 'mime-text-decode-hook)
 802     (let ((beg (point-min)))
 803       (remove-text-properties beg (point-max) '(face nil))
 804       (enriched-decode beg (point-max)))))
 805
 806 (defvar mime-view-announcement-for-message/partial
 807   "This is message/partial style split message.")
 808
 809 (defun mime-display-message/partial-button (&optional entity situation)
 810   (save-restriction
 811     (goto-char (point-max))
 812     (if (not (search-backward "\n\n" nil t))
 813         (insert "\n"))
 814     (goto-char (point-max))
 815     (mime-insert-button mime-view-announcement-for-message/partial
 816                         #'mime-preview-play-current-entity)))
 817
 818 (defun mime-display-multipart/mixed (entity situation)
 819   (let ((children (mime-entity-children entity))
 820         (original-major-mode-cell (assq 'major-mode situation))
 821         (default-situation
 822           (cdr (assq 'childrens-situation situation))))
 823     (if original-major-mode-cell
 824         (setq default-situation
 825               (cons original-major-mode-cell default-situation)))
 826     (while children
 827       (mime-display-entity (car children) nil default-situation)
 828       (setq children (cdr children)))))
 829
 830 (defcustom mime-view-type-subtype-score-alist
 831   '(((text . enriched) . 3)
 832     ((text . richtext) . 2)
 833     ((text . plain)    . 1)
 834     (t . 0))
 835   "Alist MEDIA-TYPE vs corresponding score.
 836 MEDIA-TYPE must be (TYPE . SUBTYPE), TYPE or t.  t means default."
 837   :group 'mime-view
 838   :type '(repeat (cons (choice :tag "Media-Type"
 839                                (cons :tag "Type/Subtype"
 840                                      (symbol :tag "Primary-type")
 841                                      (symbol :tag "Subtype"))
 842                                (symbol :tag "Type")
 843                                (const :tag "Default" t))
 844                        integer)))
 845
 846 (defun mime-display-multipart/alternative (entity situation)
 847   (let* ((children (mime-entity-children entity))
 848          (original-major-mode-cell (assq 'major-mode situation))
 849          (default-situation
 850            (cdr (assq 'childrens-situation situation)))
 851          (i 0)
 852          (p 0)
 853          (max-score 0)
 854          situations)
 855     (if original-major-mode-cell
 856         (setq default-situation
 857               (cons original-major-mode-cell default-situation)))
 858     (setq situations
 859           (mapcar (function
 860                    (lambda (child)
 861                      (let ((situation
 862                             (mime-find-entity-preview-situation
 863                              child default-situation)))
 864                        (if (cdr (assq 'body-presentation-method situation))
 865                            (let ((score
 866                                   (cdr
 867                                    (or (assoc
 868                                         (cons
 869                                          (cdr (assq 'type situation))
 870                                          (cdr (assq 'subtype situation)))
 871                                         mime-view-type-subtype-score-alist)
 872                                        (assq
 873                                         (cdr (assq 'type situation))
 874                                         mime-view-type-subtype-score-alist)
 875                                        (assq
 876                                         t
 877                                         mime-view-type-subtype-score-alist)))))
 878                              (if (> score max-score)
 879                                  (setq p i
 880                                        max-score score))))
 881                        (setq i (1+ i))
 882                        situation)))
 883                   children))
 884     (setq i 0)
 885     (while children
 886       (let ((child (car children))
 887             (situation (car situations)))
 888         (mime-display-entity child (if (= i p)
 889                                        situation
 890                                      (put-alist 'body 'invisible
 891                                                 (copy-alist situation)))))
 892       (setq children (cdr children)
 893             situations (cdr situations)
 894             i (1+ i)))))
 895
 896 (defun mime-display-multipart/related (entity situation)
 897   (let* ((param-start (mime-parse-msg-id
 898                        (std11-lexical-analyze
 899                         (cdr (assoc "start"
 900                                     (mime-content-type-parameters
 901                                      (mime-entity-content-type entity)))))))
 902          (start (or (and param-start (mime-find-entity-from-content-id
 903                                       param-start
 904                                       entity))
 905                     (car (mime-entity-children entity))))
 906          (original-major-mode-cell (assq 'major-mode situation))
 907          (default-situation (cdr (assq 'childrens-situation situation))))
 908     (when start
 909       (if original-major-mode-cell
 910           (setq default-situation
 911                 (cons original-major-mode-cell default-situation)))
 912       (mime-display-entity start nil default-situation))))
 913
 914 (defun mime-view-entity-content (entity situation)
 915   (mime-decode-string
 916    (mime-entity-body entity)
 917    (mime-view-guess-encoding entity situation)))
 918
 919 (defun mime-view-insert-text-content (entity situation)
 920   (let (compression-info)
 921     (cond
 922      ((and (mime-entity-filename entity)
 923            (featurep 'jka-compr)
 924            (jka-compr-installed-p)
 925            (setq compression-info (jka-compr-get-compression-info
 926                                    (mime-entity-filename entity))))
 927       (insert
 928        (mime-view-filter-text-content
 929         (mime-view-entity-content entity situation)
 930         (jka-compr-info-uncompress-program compression-info)
 931         (jka-compr-info-uncompress-args compression-info))))
 932      ((or (assq '*encoding situation)   ;should be specified by user
 933           (assq '*charset situation))   ;should be specified by user
 934       (insert
 935        (decode-mime-charset-string
 936         (mime-view-entity-content entity situation)
 937         (mime-view-guess-charset entity situation)
 938         'CRLF)))
 939      (t
 940       (mime-insert-text-content entity)))))
 941
 942 ;;; stolen (and renamed) from `mime-display-gzipped' of EMY 1.13.
 943 (defun mime-view-filter-text-content (content program args)
 944   (with-temp-buffer
 945     (static-cond
 946      ((featurep 'xemacs)
 947       (insert content)
 948       (apply #'binary-to-text-funcall
 949              mime-view-automatic-conversion
 950              #'call-process-region (point-min)(point-max)
 951              program t t args))
 952      (t
 953       (if (not (multibyte-string-p content))
 954           (set-buffer-multibyte nil))
 955       (insert content)
 956       (apply #'binary-funcall
 957              #'call-process-region (point-min)(point-max)
 958              program t t args)
 959       (set-buffer-multibyte t)
 960       (decode-coding-region (point-min)(point-max)
 961                             mime-view-automatic-conversion)))
 962     (buffer-string)))
 963
 964 ;;; stolen (and renamed) from mm-view.el.
 965 (defun mime-view-insert-fontified-text-content (entity situation
 966                                                        &optional mode)
 967   ;; XEmacs @#$@ version of font-lock refuses to fully turn itself
 968   ;; on for buffers whose name begins with " ".  That's why we use
 969   ;; save-current-buffer/get-buffer-create rather than
 970   ;; with-temp-buffer.
 971   (let ((buffer (generate-new-buffer "*fontification*"))
 972         filename)
 973     (unwind-protect
 974         (progn
 975           (save-current-buffer
 976             (set-buffer buffer)
 977             (buffer-disable-undo)
 978             (kill-all-local-variables)
 979             (mime-view-insert-text-content entity situation)
 980             (if mode
 981                 (funcall mode)
 982               (if (setq filename (mime-entity-filename entity))
 983                   (unwind-protect
 984                       (progn
 985                         (setq buffer-file-name filename)
 986                         (set-auto-mode))
 987                     (setq buffer-file-name nil))))
 988             (require 'font-lock)
 989             (let ((font-lock-verbose nil))
 990               ;; I find font-lock a bit too verbose.
 991               (font-lock-fontify-buffer))
 992             ;; By default, XEmacs font-lock uses non-duplicable text
 993             ;; properties.  This code forces all the text properties
 994             ;; to be copied along with the text.
 995             (static-when (fboundp 'extent-list)
 996               (map-extents (lambda (ext ignored)
 997                              (set-extent-property ext 'duplicable t)
 998                              nil)
 999                            nil nil nil nil nil 'text-prop)))
1000           (insert-buffer-substring buffer))
1001       (kill-buffer buffer))))
1002
1003 (defun mime-display-application/emacs-lisp (entity situation)
1004   (save-restriction
1005     (narrow-to-region (point-max)(point-max))
1006     (mime-view-insert-fontified-text-content entity situation 'emacs-lisp-mode)
1007     (run-hooks 'mime-text-decode-hook 'mime-display-text/plain-hook)))
1008
1009
1010 ;;; @ acting-condition
1011 ;;;
1012
1013 (defvar mime-acting-condition nil
1014   "Condition-tree about how to process entity.")
1015
1016 (defun mime-view-read-mailcap-files (&optional files)
1017   (or files
1018       (setq files mime-view-mailcap-files))
1019   (let (entries file)
1020     (while files
1021       (setq file (car files))
1022       (if (file-readable-p file)
1023           (setq entries (append entries (mime-parse-mailcap-file file))))
1024       (setq files (cdr files)))
1025     (while entries
1026       (let ((entry (car entries))
1027             view print shared)
1028         (while entry
1029           (let* ((field (car entry))
1030                  (field-type (car field)))
1031             (cond ((eq field-type 'view)  (setq view field))
1032                   ((eq field-type 'print) (setq print field))
1033                   ((memq field-type '(compose composetyped edit)))
1034                   (t (setq shared (cons field shared))))
1035             )
1036           (setq entry (cdr entry)))
1037         (setq shared (nreverse shared))
1038         (ctree-set-calist-with-default
1039          'mime-acting-condition
1040          (append shared (list '(mode . "play")(cons 'method (cdr view)))))
1041         (if print
1042             (ctree-set-calist-with-default
1043              'mime-acting-condition
1044              (append shared
1045                      (list '(mode . "print")(cons 'method (cdr view)))))))
1046       (setq entries (cdr entries)))))
1047
1048 (mime-view-read-mailcap-files)
1049
1050 (ctree-set-calist-strictly
1051  'mime-acting-condition
1052  '((type . application)(subtype . octet-stream)
1053    (mode . "play")
1054    (method . mime-detect-content)))
1055
1056 (ctree-set-calist-with-default
1057  'mime-acting-condition
1058  '((mode . "extract")
1059    (method . mime-save-content)))
1060
1061 (ctree-set-calist-strictly
1062  'mime-acting-condition
1063  '((type . text)(subtype . x-rot13-47)(mode . "play")
1064    (method . mime-view-caesar)))
1065 (ctree-set-calist-strictly
1066  'mime-acting-condition
1067  '((type . text)(subtype . x-rot13-47-48)(mode . "play")
1068    (method . mime-view-caesar)))
1069
1070 (ctree-set-calist-strictly
1071  'mime-acting-condition
1072  '((type . message)(subtype . rfc822)(mode . "play")
1073    (method . mime-view-message/rfc822)))
1074 (ctree-set-calist-strictly
1075  'mime-acting-condition
1076  '((type . message)(subtype . partial)(mode . "play")
1077    (method . mime-store-message/partial-piece)))
1078
1079 (ctree-set-calist-strictly
1080  'mime-acting-condition
1081  '((type . message)(subtype . external-body)
1082    ("access-type" . "anon-ftp")
1083    (method . mime-view-message/external-anon-ftp)))
1084
1085 (ctree-set-calist-strictly
1086  'mime-acting-condition
1087  '((type . message)(subtype . external-body)
1088    ("access-type" . "url")
1089    (method . mime-view-message/external-url)))
1090
1091 (ctree-set-calist-strictly
1092  'mime-acting-condition
1093  '((type . application)(subtype . octet-stream)
1094    (method . mime-save-content)))
1095
1096
1097 ;;; @ quitting method
1098 ;;;
1099
1100 (defvar mime-preview-quitting-method-alist
1101   '((mime-show-message-mode
1102      . mime-preview-quitting-method-for-mime-show-message-mode))
1103   "Alist of major-mode vs. quitting-method of mime-view.")
1104
1105 (defvar mime-preview-over-to-previous-method-alist nil
1106   "Alist of major-mode vs. over-to-previous-method of mime-view.")
1107
1108 (defvar mime-preview-over-to-next-method-alist nil
1109   "Alist of major-mode vs. over-to-next-method of mime-view.")
1110
1111
1112 ;;; @ following method
1113 ;;;
1114
1115 (defvar mime-preview-following-method-alist nil
1116   "Alist of major-mode vs. following-method of mime-view.")
1117
1118 (defvar mime-view-following-required-fields-list
1119   '("From"))
1120
1121
1122 ;;; @ buffer setup
1123 ;;;
1124
1125 (defun mime-display-entity (entity &optional situation
1126                                    default-situation preview-buffer)
1127   (or preview-buffer
1128       (setq preview-buffer (current-buffer)))
1129   (let* (e nb ne nhb nbb)
1130     (in-calist-package 'mime-view)
1131     (or situation
1132         (setq situation
1133               (mime-find-entity-preview-situation entity default-situation)))
1134     (let ((button-is-invisible
1135            (eq (cdr (or (assq '*entity-button situation)
1136                         (assq 'entity-button situation)))
1137                'invisible))
1138           (header-is-visible
1139            (eq (cdr (or (assq '*header situation)
1140                         (assq 'header situation)))
1141                'visible))
1142           (body-is-visible
1143            (eq (cdr (or (assq '*body situation)
1144                         (assq 'body situation)))
1145                'visible))
1146           (children (mime-entity-children entity)))
1147       (set-buffer preview-buffer)
1148       (setq nb (point))
1149       (narrow-to-region nb nb)
1150       (or button-is-invisible
1151           ;; (if (mime-view-entity-button-visible-p entity)
1152           (mime-view-insert-entity-button entity)
1153           ;;   )
1154           )
1155       (if header-is-visible
1156           (let ((header-presentation-method
1157                  (or (cdr (assq 'header-presentation-method situation))
1158                      (cdr (assq (cdr (assq 'major-mode situation))
1159                                 mime-header-presentation-method-alist)))))
1160             (setq nhb (point))
1161             (if header-presentation-method
1162                 (funcall header-presentation-method entity situation)
1163               (mime-insert-header entity
1164                                   mime-view-ignored-field-list
1165                                   mime-view-visible-field-list))
1166             (mime-add-url-buttons)
1167             (run-hooks 'mime-display-header-hook)
1168             (put-text-property nhb (point-max) 'mime-view-entity-header entity)
1169             (goto-char (point-max))
1170             (insert "\n")))
1171       (setq nbb (point))
1172       (unless children
1173         (if body-is-visible
1174             (let ((body-presentation-method
1175                    (cdr (assq 'body-presentation-method situation))))
1176               (if (functionp body-presentation-method)
1177                   (funcall body-presentation-method entity situation)
1178                 (mime-display-text/plain entity situation)))
1179           (when button-is-invisible
1180             (goto-char (point-max))
1181             (mime-view-insert-entity-button entity))
1182           (unless header-is-visible
1183             (goto-char (point-max))
1184             (insert "\n"))))
1185       (setq ne (point-max))
1186       (widen)
1187       (put-text-property nb ne 'mime-view-entity entity)
1188       (put-text-property nb ne 'mime-view-situation situation)
1189       (put-text-property nbb ne 'mime-view-entity-body entity)
1190       (goto-char ne)
1191       (if (and children body-is-visible)
1192           (let ((body-presentation-method
1193                  (cdr (assq 'body-presentation-method situation))))
1194             (if (functionp body-presentation-method)
1195                 (funcall body-presentation-method entity situation)
1196               (mime-display-multipart/mixed entity situation)))))))
1197
1198
1199 ;;; @ MIME viewer mode
1200 ;;;
1201
1202 (defconst mime-view-popup-menu-list
1203   '("MIME-View"
1204     ["Move to upper entity" mime-preview-move-to-upper]
1205     ["Move to previous entity" mime-preview-move-to-previous]
1206     ["Move to next entity" mime-preview-move-to-next]
1207     ["Scroll-down" mime-preview-scroll-down-entity]
1208     ["Scroll-up" mime-preview-scroll-up-entity]
1209     ["Play current entity" mime-preview-play-current-entity]
1210     ["Extract current entity" mime-preview-extract-current-entity]
1211     ["Print current entity" mime-preview-print-current-entity])
1212   "Menu for MIME Viewer")
1213
1214 (defun mime-view-popup-menu (event)
1215   "Popup the menu in the MIME Viewer buffer"
1216   (interactive "@e")
1217   (mime-popup-menu-popup mime-view-popup-menu-list event))
1218
1219 ;;; The current local map is taken precendence over `widget-keymap',
1220 ;;; because GNU Emacs' widget implementation doesn't set `local-map' property.
1221 ;;;  So we need to specify derivation.
1222 (defvar widget-keymap)
1223 (defun mime-view-maybe-inherit-widget-keymap ()
1224   (when (boundp 'widget-keymap)
1225     (set-keymap-parent (current-local-map) widget-keymap)))
1226
1227 (add-hook 'mime-view-mode-hook 'mime-view-maybe-inherit-widget-keymap)
1228
1229 (defun mime-view-define-keymap (&optional default)
1230   (let ((mime-view-mode-map (if (keymapp default)
1231                                 (copy-keymap default)
1232                               (make-sparse-keymap))))
1233     (define-key mime-view-mode-map
1234       "u"        (function mime-preview-move-to-upper))
1235     (define-key mime-view-mode-map
1236       "p"        (function mime-preview-move-to-previous))
1237     (define-key mime-view-mode-map
1238       "n"        (function mime-preview-move-to-next))
1239     (define-key mime-view-mode-map
1240       "\e\t"     (function mime-preview-move-to-previous))
1241     (define-key mime-view-mode-map
1242       "\t"       (function mime-preview-move-to-next))
1243     (define-key mime-view-mode-map
1244       " "        (function mime-preview-scroll-up-entity))
1245     (define-key mime-view-mode-map
1246       "\M- "     (function mime-preview-scroll-down-entity))
1247     (define-key mime-view-mode-map
1248       "\177"     (function mime-preview-scroll-down-entity))
1249     (define-key mime-view-mode-map
1250       "\C-m"     (function mime-preview-next-line-entity))
1251     (define-key mime-view-mode-map
1252       "\C-\M-m"  (function mime-preview-previous-line-entity))
1253     (define-key mime-view-mode-map
1254       "v"        (function mime-preview-play-current-entity))
1255     (define-key mime-view-mode-map
1256       "e"        (function mime-preview-extract-current-entity))
1257     (define-key mime-view-mode-map
1258       "\C-c\C-p" (function mime-preview-print-current-entity))
1259
1260     (define-key mime-view-mode-map
1261       "\C-c\C-t\C-f" (function mime-preview-toggle-header))
1262     (define-key mime-view-mode-map
1263       "\C-c\C-th" (function mime-preview-toggle-header))
1264     (define-key mime-view-mode-map
1265       "\C-c\C-t\C-c" (function mime-preview-toggle-content))
1266
1267     (define-key mime-view-mode-map
1268       "\C-c\C-v\C-f" (function mime-preview-show-header))
1269     (define-key mime-view-mode-map
1270       "\C-c\C-vh" (function mime-preview-show-header))
1271     (define-key mime-view-mode-map
1272       "\C-c\C-v\C-c" (function mime-preview-show-content))
1273
1274     (define-key mime-view-mode-map
1275       "\C-c\C-d\C-f" (function mime-preview-hide-header))
1276     (define-key mime-view-mode-map
1277       "\C-c\C-dh" (function mime-preview-hide-header))
1278     (define-key mime-view-mode-map
1279       "\C-c\C-d\C-c" (function mime-preview-hide-content))
1280
1281     (define-key mime-view-mode-map
1282       "a"        (function mime-preview-follow-current-entity))
1283     (define-key mime-view-mode-map
1284       "q"        (function mime-preview-quit))
1285     (define-key mime-view-mode-map
1286       "\C-c\C-x" (function mime-preview-kill-buffer))
1287     ;; (define-key mime-view-mode-map
1288     ;;   "<"        (function beginning-of-buffer))
1289     ;; (define-key mime-view-mode-map
1290     ;;   ">"        (function end-of-buffer))
1291     (define-key mime-view-mode-map
1292       "?"        (function describe-mode))
1293     (define-key mime-view-mode-map
1294       [tab] (function mime-preview-move-to-next))
1295     (define-key mime-view-mode-map
1296       [delete] (function mime-preview-scroll-down-entity))
1297     (define-key mime-view-mode-map
1298       [backspace] (function mime-preview-scroll-down-entity))
1299     (if (functionp default)
1300         (if (featurep 'xemacs)
1301             (set-keymap-default-binding mime-view-mode-map default)
1302           (setq mime-view-mode-map
1303                 (append mime-view-mode-map (list (cons t default))))))
1304     (define-key mime-view-mode-map
1305       [down-mouse-3] (function mime-view-popup-menu))
1306     ;; (run-hooks 'mime-view-define-keymap-hook)
1307     mime-view-mode-map))
1308
1309 (defvar mime-view-mode-default-map (mime-view-define-keymap))
1310
1311
1312 (defsubst mime-maybe-hide-echo-buffer ()
1313   "Clear mime-echo buffer and delete window for it."
1314   (let ((buf (get-buffer mime-echo-buffer-name)))
1315     (if buf
1316         (save-excursion
1317           (set-buffer buf)
1318           (erase-buffer)
1319           (let ((win (get-buffer-window buf)))
1320             (if win
1321                 (delete-window win)))
1322           (bury-buffer buf)))))
1323
1324 (defvar mime-view-redisplay nil)
1325
1326 ;;;###autoload
1327 (defun mime-display-message (message &optional preview-buffer
1328                                      mother default-keymap-or-function
1329                                      original-major-mode keymap)
1330   "View MESSAGE in MIME-View mode.
1331
1332 Optional argument PREVIEW-BUFFER specifies the buffer of the
1333 presentation.  It must be either nil or a name of preview buffer.
1334
1335 Optional argument MOTHER specifies mother-buffer of the preview-buffer.
1336
1337 Optional argument DEFAULT-KEYMAP-OR-FUNCTION is nil, keymap or
1338 function.  If it is a keymap, keymap of MIME-View mode will be added
1339 to it.  If it is a function, it will be bound as default binding of
1340 keymap of MIME-View mode.
1341
1342 Optional argument ORIGINAL-MAJOR-MODE is major-mode of representation
1343 buffer of MESSAGE.  If it is nil, current `major-mode' is used.
1344
1345 Optional argument KEYMAP is keymap of MIME-View mode.  If it is
1346 non-nil, DEFAULT-KEYMAP-OR-FUNCTION is ignored.  If it is nil,
1347 `mime-view-mode-default-map' is used."
1348   (mime-maybe-hide-echo-buffer)
1349   (let ((win-conf (current-window-configuration)))
1350     (or preview-buffer
1351         (setq preview-buffer
1352               (concat "*Preview-" (mime-entity-name message) "*")))
1353     (or original-major-mode
1354         (setq original-major-mode major-mode))
1355     (let ((inhibit-read-only t))
1356       (set-buffer (get-buffer-create preview-buffer))
1357       (widen)
1358       (erase-buffer)
1359       (if mother
1360           (setq mime-mother-buffer mother))
1361       (setq mime-preview-original-window-configuration win-conf)
1362       (setq major-mode 'mime-view-mode)
1363       (setq mode-name "MIME-View")
1364       (mime-display-entity message nil
1365                            `((entity-button . invisible)
1366                              (header . visible)
1367                              (major-mode . ,original-major-mode))
1368                            preview-buffer)
1369       (use-local-map
1370        (or keymap
1371            (if default-keymap-or-function
1372                (mime-view-define-keymap default-keymap-or-function)
1373              mime-view-mode-default-map)))
1374       (let ((point
1375              (next-single-property-change (point-min) 'mime-view-entity)))
1376         (if point
1377             (goto-char point)
1378           (goto-char (point-min))
1379           (search-forward "\n\n" nil t)))
1380       (run-hooks 'mime-view-mode-hook)
1381       (set-buffer-modified-p nil)
1382       (setq buffer-read-only t)
1383       preview-buffer)))
1384
1385 ;;;###autoload
1386 (defun mime-view-buffer (&optional raw-buffer preview-buffer mother
1387                                    default-keymap-or-function
1388                                    representation-type)
1389   "View RAW-BUFFER in MIME-View mode.
1390 Optional argument PREVIEW-BUFFER is either nil or a name of preview
1391 buffer.
1392 Optional argument DEFAULT-KEYMAP-OR-FUNCTION is nil, keymap or
1393 function.  If it is a keymap, keymap of MIME-View mode will be added
1394 to it.  If it is a function, it will be bound as default binding of
1395 keymap of MIME-View mode.
1396 Optional argument REPRESENTATION-TYPE is representation-type of
1397 message.  It must be nil, `binary' or `cooked'.  If it is nil,
1398 `cooked' is used as default."
1399   (interactive)
1400   (or raw-buffer
1401       (setq raw-buffer (current-buffer)))
1402   (or representation-type
1403       (setq representation-type
1404             (save-excursion
1405               (set-buffer raw-buffer)
1406               (cdr (or (assq major-mode mime-raw-representation-type-alist)
1407                        (assq t mime-raw-representation-type-alist))))))
1408   (if (eq representation-type 'binary)
1409       (setq representation-type 'buffer))
1410   (setq preview-buffer (mime-display-message
1411                         (mime-open-entity representation-type raw-buffer)
1412                         preview-buffer mother default-keymap-or-function))
1413   (or (get-buffer-window preview-buffer)
1414       (let ((r-win (get-buffer-window raw-buffer)))
1415         (if r-win
1416             (set-window-buffer r-win preview-buffer)
1417           (let ((m-win (and mother (get-buffer-window mother))))
1418             (if m-win
1419                 (set-window-buffer m-win preview-buffer)
1420               (switch-to-buffer preview-buffer)))))))
1421
1422 (defun mime-view-mode (&optional mother ctl encoding
1423                                  raw-buffer preview-buffer
1424                                  default-keymap-or-function)
1425   "Major mode for viewing MIME message.
1426
1427 Here is a list of the standard keys for mime-view-mode.
1428
1429 key             feature
1430 ---             -------
1431
1432 u               Move to upper content
1433 p or M-TAB      Move to previous content
1434 n or TAB        Move to next content
1435 SPC             Scroll up or move to next content
1436 M-SPC or DEL    Scroll down or move to previous content
1437 RET             Move to next line
1438 M-RET           Move to previous line
1439 v               Decode current content as `play mode'
1440 e               Decode current content as `extract mode'
1441 C-c C-p         Decode current content as `print mode'
1442 a               Followup to current content.
1443 q               Quit
1444 button-2        Move to point under the mouse cursor
1445                 and decode current content as `play mode'
1446 "
1447   (interactive)
1448   (unless mime-view-redisplay
1449     (save-excursion
1450       (if raw-buffer (set-buffer raw-buffer))
1451       (let ((type
1452              (cdr
1453               (or (assq major-mode mime-raw-representation-type-alist)
1454                   (assq t mime-raw-representation-type-alist)))))
1455         (if (eq type 'binary)
1456             (setq type 'buffer))
1457         (setq mime-message-structure (mime-open-entity type raw-buffer))
1458         (or (mime-entity-content-type mime-message-structure)
1459             (mime-entity-set-content-type mime-message-structure ctl)))
1460       (or (mime-entity-encoding mime-message-structure)
1461           (mime-entity-set-encoding mime-message-structure encoding))))
1462   (mime-display-message mime-message-structure preview-buffer
1463                         mother default-keymap-or-function))
1464
1465
1466 ;;; @@ utility
1467 ;;;
1468
1469 (defun mime-preview-find-boundary-info (&optional with-children)
1470   "Return boundary information of current part.
1471 If WITH-CHILDREN, refer boundary surrounding current part and its branches."
1472   (let (entity
1473         p-beg p-end
1474         entity-node-id len)
1475     (while (and
1476             (null (setq entity
1477                         (get-text-property (point) 'mime-view-entity)))
1478             (> (point) (point-min)))
1479       (backward-char))
1480     (setq p-beg (previous-single-property-change (point) 'mime-view-entity))
1481     (setq entity-node-id (and entity (mime-entity-node-id entity)))
1482     (setq len (length entity-node-id))
1483     (cond ((null p-beg)
1484            (setq p-beg
1485                  (if (eq (next-single-property-change (point-min)
1486                                                       'mime-view-entity)
1487                          (point))
1488                      (point)
1489                    (point-min))))
1490           ((eq (next-single-property-change p-beg 'mime-view-entity)
1491                (point))
1492            (setq p-beg (point))))
1493     (setq p-end (next-single-property-change p-beg 'mime-view-entity))
1494     (cond ((null p-end)
1495            (setq p-end (point-max)))
1496           ((null entity-node-id)
1497            (setq p-end (point-max)))
1498           (with-children
1499            (save-excursion
1500              (catch 'tag
1501                (let (e i)
1502                  (while (setq e
1503                               (next-single-property-change
1504                                (point) 'mime-view-entity))
1505                    (goto-char e)
1506                    (let ((rc (mime-entity-node-id
1507                               (get-text-property (point)
1508                                                  'mime-view-entity))))
1509                      (or (and (>= (setq i (- (length rc) len)) 0)
1510                               (equal entity-node-id (nthcdr i rc)))
1511                          (throw 'tag nil)))
1512                    (setq p-end (or (next-single-property-change
1513                                     (point) 'mime-view-entity)
1514                                    (point-max)))))
1515                (setq p-end (point-max))))))
1516     (vector p-beg p-end entity)))
1517
1518
1519 ;;; @@ playing
1520 ;;;
1521
1522 (autoload 'mime-preview-play-current-entity "mime-play"
1523   "Play current entity." t)
1524
1525 (defun mime-preview-extract-current-entity (&optional ignore-examples)
1526   "Extract current entity into file (maybe).
1527 It decodes current entity to call internal or external method as
1528 \"extract\" mode.  The method is selected from variable
1529 `mime-acting-condition'."
1530   (interactive "P")
1531   (mime-preview-play-current-entity ignore-examples "extract"))
1532
1533 (defun mime-preview-print-current-entity (&optional ignore-examples)
1534   "Print current entity (maybe).
1535 It decodes current entity to call internal or external method as
1536 \"print\" mode.  The method is selected from variable
1537 `mime-acting-condition'."
1538   (interactive "P")
1539   (mime-preview-play-current-entity ignore-examples "print"))
1540
1541
1542 ;;; @@ following
1543 ;;;
1544
1545 (defun mime-preview-follow-current-entity ()
1546   "Write follow message to current entity.
1547 It calls following-method selected from variable
1548 `mime-preview-following-method-alist'."
1549   (interactive)
1550   (let* ((boundary-info (mime-preview-find-boundary-info t))
1551          (p-beg (aref boundary-info 0))
1552          (p-end (aref boundary-info 1))
1553          (entity (aref boundary-info 2))
1554          pb-beg)
1555     (if (or (get-text-property p-beg 'mime-view-entity-body)
1556             (null entity))
1557         (setq pb-beg p-beg)
1558       (setq pb-beg
1559             (next-single-property-change
1560              p-beg 'mime-view-entity-body nil
1561              (or (next-single-property-change p-beg 'mime-view-entity)
1562                  p-end))))
1563     (let* ((mode (mime-preview-original-major-mode 'recursive))
1564            (entity-node-id (and entity (mime-entity-node-id entity)))
1565            (new-name
1566             (format "%s-%s" (buffer-name) (reverse entity-node-id)))
1567            new-buf
1568            (the-buf (current-buffer))
1569            fields)
1570       (save-excursion
1571         (set-buffer (setq new-buf (get-buffer-create new-name)))
1572         (erase-buffer)
1573         (insert ?\n)
1574         (insert-buffer-substring the-buf pb-beg p-end)
1575         (goto-char (point-min))
1576         (let ((current-entity
1577                (if (and entity
1578                         (eq (mime-entity-media-type entity) 'message)
1579                         (eq (mime-entity-media-subtype entity) 'rfc822))
1580                    (car (mime-entity-children entity))
1581                  entity)))
1582           (while (and current-entity
1583                       (if (and (eq (mime-entity-media-type
1584                                     current-entity) 'message)
1585                                (eq (mime-entity-media-subtype
1586                                     current-entity) 'rfc822))
1587                           nil
1588                         (mime-insert-header current-entity fields)
1589                         t))
1590             (setq fields (std11-collect-field-names)
1591                   current-entity (mime-entity-parent current-entity))))
1592         (let ((rest mime-view-following-required-fields-list)
1593               field-name ret)
1594           (while rest
1595             (setq field-name (car rest))
1596             (or (std11-field-body field-name)
1597                 (progn
1598                   (save-excursion
1599                     (set-buffer the-buf)
1600                     (let ((entity (when mime-mother-buffer
1601                                     (set-buffer mime-mother-buffer)
1602                                     (get-text-property (point)
1603                                                        'mime-view-entity))))
1604                       (while (and entity
1605                                   (null (setq ret (mime-entity-fetch-field
1606                                                    entity field-name))))
1607                         (setq entity (mime-entity-parent entity)))))
1608                   (if ret
1609                       (insert (concat field-name ": " ret "\n")))))
1610             (setq rest (cdr rest)))))
1611       (let ((f (cdr (assq mode mime-preview-following-method-alist))))
1612         (if (functionp f)
1613             (funcall f new-buf)
1614           (message
1615            "Sorry, following method for %s is not implemented yet."
1616             mode))))))
1617
1618
1619 ;;; @@ moving
1620 ;;;
1621
1622 (defun mime-preview-move-to-upper ()
1623   "Move to upper entity.
1624 If there is no upper entity, call function `mime-preview-quit'."
1625   (interactive)
1626   (let (cinfo)
1627     (while (null (setq cinfo
1628                        (get-text-property (point) 'mime-view-entity)))
1629       (backward-char))
1630     (let ((r (mime-entity-parent cinfo))
1631           point)
1632       (catch 'tag
1633         (while (setq point (previous-single-property-change
1634                             (point) 'mime-view-entity))
1635           (goto-char point)
1636           (when (eq r (get-text-property (point) 'mime-view-entity))
1637             (if (or (eq mime-preview-move-scroll t)
1638                     (and mime-preview-move-scroll
1639                          (>= point
1640                              (save-excursion
1641                                (move-to-window-line -1)
1642                                (forward-line (* -1 next-screen-context-lines))
1643                                (beginning-of-line)
1644                                (point)))))
1645                 (recenter next-screen-context-lines))
1646             (throw 'tag t)))
1647         (mime-preview-quit)))))
1648
1649 (defun mime-preview-move-to-previous ()
1650   "Move to previous entity.
1651 If there is no previous entity, it calls function registered in
1652 variable `mime-preview-over-to-previous-method-alist'."
1653   (interactive)
1654   (while (and (not (bobp))
1655               (null (get-text-property (point) 'mime-view-entity)))
1656     (backward-char))
1657   (let ((point (previous-single-property-change (point) 'mime-view-entity)))
1658     (if (and point
1659              (>= point (point-min)))
1660         (if (get-text-property (1- point) 'mime-view-entity)
1661             (progn (goto-char point)
1662                    (if
1663                     (or (eq mime-preview-move-scroll t)
1664                         (and mime-preview-move-scroll
1665                              (<= point
1666                                 (save-excursion
1667                                   (move-to-window-line 0)
1668                                   (forward-line next-screen-context-lines)
1669                                   (end-of-line)
1670                                   (point)))))
1671                         (recenter (* -1 next-screen-context-lines))))
1672           (goto-char (1- point))
1673           (mime-preview-move-to-previous))
1674       (let ((f (assq (mime-preview-original-major-mode)
1675                      mime-preview-over-to-previous-method-alist)))
1676         (if f
1677             (funcall (cdr f)))))))
1678
1679 (defun mime-preview-move-to-next ()
1680   "Move to next entity.
1681 If there is no previous entity, it calls function registered in
1682 variable `mime-preview-over-to-next-method-alist'."
1683   (interactive)
1684   (while (and (not (eobp))
1685               (null (get-text-property (point) 'mime-view-entity)))
1686     (forward-char))
1687   (let ((point (next-single-property-change (point) 'mime-view-entity)))
1688     (if (and point
1689              (<= point (point-max)))
1690         (progn
1691           (goto-char point)
1692           (if (null (get-text-property point 'mime-view-entity))
1693               (mime-preview-move-to-next)
1694             (and
1695              (or (eq mime-preview-move-scroll t)
1696                  (and mime-preview-move-scroll
1697                       (>= point
1698                          (save-excursion
1699                            (move-to-window-line -1)
1700                            (forward-line
1701                             (* -1 next-screen-context-lines))
1702                            (beginning-of-line)
1703                            (point)))))
1704                  (recenter next-screen-context-lines))))
1705       (let ((f (assq (mime-preview-original-major-mode)
1706                      mime-preview-over-to-next-method-alist)))
1707         (if f
1708             (funcall (cdr f)))))))
1709
1710 (defun mime-preview-scroll-up-entity (&optional h)
1711   "Scroll up current entity.
1712 If reached to (point-max), it calls function registered in variable
1713 `mime-preview-over-to-next-method-alist'."
1714   (interactive)
1715   (if (eobp)
1716       (let ((f (assq (mime-preview-original-major-mode)
1717                      mime-preview-over-to-next-method-alist)))
1718         (if f
1719             (funcall (cdr f))))
1720     (let ((point
1721            (or (next-single-property-change (point) 'mime-view-entity)
1722                (point-max)))
1723           (bottom (window-end (selected-window))))
1724       (if (and (not h)
1725                (> bottom point))
1726           (progn (goto-char point)
1727                  (recenter next-screen-context-lines))
1728         (condition-case nil
1729             (scroll-up h)
1730           (end-of-buffer
1731            (goto-char (point-max))))))))
1732
1733 (defun mime-preview-scroll-down-entity (&optional h)
1734   "Scroll down current entity.
1735 If reached to (point-min), it calls function registered in variable
1736 `mime-preview-over-to-previous-method-alist'."
1737   (interactive)
1738   (if (bobp)
1739       (let ((f (assq (mime-preview-original-major-mode)
1740                      mime-preview-over-to-previous-method-alist)))
1741         (if f
1742             (funcall (cdr f))))
1743     (let ((point
1744            (or (previous-single-property-change (point) 'mime-view-entity)
1745                (point-min)))
1746           (top (window-start (selected-window))))
1747       (if (and (not h)
1748                (< top point))
1749           (progn (goto-char point)
1750                  (recenter (* -1 next-screen-context-lines)))
1751         (condition-case nil
1752             (scroll-down h)
1753           (beginning-of-buffer
1754            (goto-char (point-min))))))))
1755
1756 (defun mime-preview-next-line-entity (&optional lines)
1757   "Scroll up one line (or prefix LINES lines).
1758 If LINES is negative, scroll down LINES lines."
1759   (interactive "p")
1760   (mime-preview-scroll-up-entity (or lines 1)))
1761
1762 (defun mime-preview-previous-line-entity (&optional lines)
1763   "Scrroll down one line (or prefix LINES lines).
1764 If LINES is negative, scroll up LINES lines."
1765   (interactive "p")
1766   (mime-preview-scroll-down-entity (or lines 1)))
1767
1768
1769 ;;; @@ display
1770 ;;;
1771
1772 (defun mime-view-guess-encoding (entity situation)
1773   (or (cdr (assq '*encoding situation))
1774       (cdr (assq 'encoding situation))
1775       (mime-entity-encoding entity)
1776       "7bit"))
1777
1778 (defun mime-view-read-encoding (entity situation)
1779   (let* ((default-encoding
1780            (mime-view-guess-encoding entity situation))
1781          (encoding
1782           (completing-read
1783            "Content Transfer Encoding: "
1784            (mime-encoding-alist) nil t default-encoding)))
1785     (unless (or (string= encoding "")
1786                 (string= encoding default-encoding))
1787       encoding)))
1788
1789 (defun mime-view-guess-charset (entity situation)
1790   (or (static-if (fboundp 'coding-system-to-mime-charset)
1791           ;; might be overridden by `universal-coding-system-argument'.
1792           (and coding-system-for-read
1793                (coding-system-to-mime-charset coding-system-for-read)))
1794       (cdr (assq '*charset situation))
1795       (cdr (assq 'charset situation))
1796       (let ((charset (cdr (assoc "charset" (mime-entity-parameters entity)))))
1797         (if charset
1798             (intern (downcase charset))))
1799       default-mime-charset))
1800
1801 (defun mime-view-read-charset (entity situation)
1802   (static-if (featurep 'mule)
1803       (let* ((default-charset
1804                (mime-view-guess-charset entity situation))
1805              (charset
1806               (intern (completing-read "MIME-charset: "
1807                                        (mapcar
1808                                         (lambda (sym)
1809                                           (list (symbol-name sym)))
1810                                         (mime-charset-list))
1811                                        nil t
1812                                        (symbol-name default-charset)))))
1813         (unless (eq charset default-charset)
1814           charset))
1815     default-charset))
1816
1817 (defun mime-preview-toggle-display (type &optional display)
1818   (let ((situation (mime-preview-find-boundary-info t))
1819         (sym (intern (concat "*" (symbol-name type))))
1820         entity p-beg p-end encoding charset)
1821     (setq p-beg (aref situation 0)
1822           p-end (aref situation 1)
1823           entity (aref situation 2)
1824           situation (get-text-property p-beg 'mime-view-situation))
1825     (cond ((eq display 'invisible)
1826            (setq display nil))
1827           (display)
1828           (t
1829            (setq display
1830                  (memq (cdr (or (assq sym situation)
1831                                 (assq type situation)))
1832                        '(nil invisible)))))
1833     (setq situation (put-alist sym (if display
1834                                        'visible
1835                                      'invisible)
1836                                situation))
1837     (when (and current-prefix-arg
1838                (eq (cdr (assq sym situation)) 'visible))
1839       (if (setq encoding (mime-view-read-encoding entity situation))
1840           (setq situation (put-alist '*encoding encoding situation)))
1841       (if (setq charset (mime-view-read-charset entity situation))
1842           (setq situation (put-alist '*charset charset situation))))
1843     (save-excursion
1844       (let ((inhibit-read-only t))
1845         (delete-region p-beg p-end)
1846         (mime-display-entity entity situation)))
1847     (let ((ret (assoc situation mime-preview-situation-example-list)))
1848       (if ret
1849           (setcdr ret (1+ (cdr ret)))
1850         (add-to-list 'mime-preview-situation-example-list
1851                      (cons situation 0))))))
1852
1853 (defun mime-preview-toggle-header (&optional force-visible)
1854   (interactive "P")
1855   (mime-preview-toggle-display 'header force-visible))
1856
1857 (defun mime-preview-toggle-content (&optional force-visible)
1858   (interactive "P")
1859   (mime-preview-toggle-display 'body force-visible))
1860
1861 (defun mime-preview-show-header ()
1862   (interactive)
1863   (mime-preview-toggle-display 'header 'visible))
1864
1865 (defun mime-preview-show-content ()
1866   (interactive)
1867   (mime-preview-toggle-display 'body 'visible))
1868
1869 (defun mime-preview-hide-header ()
1870   (interactive)
1871   (mime-preview-toggle-display 'header 'invisible))
1872
1873 (defun mime-preview-hide-content ()
1874   (interactive)
1875   (mime-preview-toggle-display 'body 'invisible))
1876
1877
1878 ;;; @@ quitting
1879 ;;;
1880
1881 (defun mime-preview-quit ()
1882   "Quit from MIME-preview buffer.
1883 It calls function registered in variable
1884 `mime-preview-quitting-method-alist'."
1885   (interactive)
1886   (let ((r (assq (mime-preview-original-major-mode)
1887                  mime-preview-quitting-method-alist)))
1888     (if r
1889         (funcall (cdr r)))))
1890
1891 (defun mime-preview-kill-buffer ()
1892   (interactive)
1893   (kill-buffer (current-buffer)))
1894
1895
1896 ;;; @ end
1897 ;;;
1898
1899 (provide 'mime-view)
1900
1901 (eval-when-compile
1902   (setq mime-situation-examples-file nil)
1903   ;; to avoid to read situation-examples-file at compile time.
1904   )
1905
1906 (mime-view-read-situation-examples-file)
1907
1908 ;;; mime-view.el ends here