1 ;;; mmgeneric.el --- MIME entity module for generic buffer
3 ;; Copyright (C) 1998 Free Software Foundation, Inc.
5 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
6 ;; Keywords: MIME, multimedia, mail, news
8 ;; This file is part of FLIM (Faithful Library about Internet Message).
10 ;; This program is free software; you can redistribute it and/or
11 ;; modify it under the terms of the GNU General Public License as
12 ;; published by the Free Software Foundation; either version 2, or (at
13 ;; your option) any later version.
15 ;; This program is distributed in the hope that it will be useful, but
16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 ;; General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
30 (mm-define-backend generic)
32 (mm-define-method entity-header-start ((entity generic))
33 (mime-entity-set-header-start-internal
36 (set-buffer (mime-entity-buffer entity))
40 (mm-define-method entity-header-end ((entity generic))
42 (set-buffer (mime-entity-buffer entity))
43 (mime-entity-header-end-internal entity)
46 (mm-define-method entity-body-start ((entity generic))
47 (mime-entity-set-body-start-internal
50 (set-buffer (mime-entity-buffer entity))
51 (mime-entity-body-start-internal entity)
54 (mm-define-method entity-body-end ((entity generic))
55 (mime-entity-set-body-end-internal
58 (set-buffer (mime-entity-buffer entity))
62 (mm-define-method entity-point-min ((entity generic))
63 (or (mime-entity-header-start-internal entity)
64 (mime-entity-send entity 'entity-header-start)))
66 (mm-define-method entity-point-max ((entity generic))
67 (or (mime-entity-body-end-internal entity)
68 (mime-entity-send entity 'entity-body-end)))
70 (mm-define-method fetch-field ((entity generic) field-name)
72 (set-buffer (mime-entity-buffer entity))
74 (narrow-to-region (mime-entity-header-start-internal entity)
75 (mime-entity-header-end-internal entity))
76 (std11-fetch-field field-name)
79 (mm-define-method entity-cooked-p ((entity generic)) nil)
81 (mm-define-method entity-children ((entity generic))
82 (let* ((content-type (mime-entity-content-type entity))
83 (primary-type (mime-content-type-primary-type content-type)))
84 (cond ((eq primary-type 'multipart)
85 (mime-parse-multipart entity)
87 ((and (eq primary-type 'message)
88 (memq (mime-content-type-subtype content-type)
89 '(rfc822 news external-body)
91 (mime-parse-encapsulated entity)
95 (mm-define-method entity-content ((entity generic))
97 (set-buffer (mime-entity-buffer entity))
99 (buffer-substring (mime-entity-body-start-internal entity)
100 (mime-entity-body-end-internal entity))
101 (mime-entity-encoding entity))))
103 (mm-define-method write-entity-content ((entity generic) filename)
105 (set-buffer (mime-entity-buffer entity))
106 (mime-write-decoded-region (mime-entity-body-start-internal entity)
107 (mime-entity-body-end-internal entity)
109 (or (mime-entity-encoding entity) "7bit"))
112 (mm-define-method write-entity ((entity generic) filename)
114 (set-buffer (mime-entity-buffer entity))
115 (write-region-as-raw-text-CRLF (mime-entity-header-start-internal entity)
116 (mime-entity-body-end-internal entity)
120 (mm-define-method write-entity-body ((entity generic) filename)
122 (set-buffer (mime-entity-buffer entity))
123 (write-region-as-binary (mime-entity-body-start-internal entity)
124 (mime-entity-body-end-internal entity)
128 (defun mime-visible-field-p (field-name visible-fields invisible-fields)
130 (while visible-fields
131 (let ((regexp (car visible-fields)))
132 (if (string-match regexp field-name)
135 (setq visible-fields (cdr visible-fields))
138 (while invisible-fields
139 (let ((regexp (car invisible-fields)))
140 (if (string-match regexp field-name)
143 (setq invisible-fields (cdr invisible-fields))
147 (mm-define-method insert-header ((entity generic)
148 &optional invisible-fields visible-fields)
150 (narrow-to-region (point)(point))
151 (let ((the-buf (current-buffer))
152 (src-buf (mime-entity-buffer entity))
153 (h-end (mime-entity-header-end-internal entity))
154 beg p end field-name len field)
157 (goto-char (mime-entity-header-start-internal entity))
159 (narrow-to-region (point) h-end)
160 (while (re-search-forward std11-field-head-regexp nil t)
161 (setq beg (match-beginning 0)
163 field-name (buffer-substring beg (1- p))
164 len (string-width field-name)
165 end (std11-field-end))
166 (when (mime-visible-field-p field-name
167 visible-fields invisible-fields)
168 (setq field (intern (capitalize field-name)))
173 (cond ((memq field eword-decode-ignored-field-list)
175 (insert-buffer-substring src-buf p end)
177 ((memq field eword-decode-structured-field-list)
178 ;; Decode as structured field
179 (let ((body (save-excursion
181 (buffer-substring p end)
183 (insert (eword-decode-and-fold-structured-field
187 ;; Decode as unstructured field
188 (let ((body (save-excursion
190 (buffer-substring p end)
192 (insert (eword-decode-unstructured-field-body
198 (mm-define-method insert-text-content ((entity generic))
200 (decode-mime-charset-string (mime-entity-content entity)
201 (or (mime-content-type-parameter
202 (mime-entity-content-type entity)
204 default-mime-charset)
214 ;;; mmgeneric.el ends here