mmbuffer.el

   1 ;;; mmbuffer.el --- MIME entity module for binary buffer
   2
   3 ;; Copyright (C) 1998 Free Software Foundation, Inc.
   4
   5 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
   6 ;; Keywords: MIME, multimedia, mail, news
   7
   8 ;; This file is part of FLIM (Faithful Library about Internet Message).
   9
  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.
  14
  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.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24
  25 ;;; Code:
  26
  27 (require 'mime)
  28
  29 (defun mmbuffer-open-entity (location)
  30   (mime-parse-buffer location)
  31   )
  32
  33 (defun mmbuffer-entity-point-min (entity)
  34   (mime-entity-header-start-internal entity)
  35   )
  36
  37 (defun mmbuffer-entity-point-max (entity)
  38   (mime-entity-body-end-internal entity)
  39   )
  40
  41 (defun mmbuffer-fetch-field (entity field-name)
  42   (save-excursion
  43     (set-buffer (mime-entity-buffer-internal entity))
  44     (save-restriction
  45       (narrow-to-region (mime-entity-header-start-internal entity)
  46                         (mime-entity-header-end-internal entity))
  47       (std11-fetch-field field-name)
  48       )))
  49
  50 (defun mmbuffer-cooked-p () nil)
  51
  52 (defun mmbuffer-entity-content (entity)
  53   (save-excursion
  54     (set-buffer (mime-entity-buffer-internal entity))
  55     (mime-decode-string
  56      (buffer-substring (mime-entity-body-start-internal entity)
  57                        (mime-entity-body-end-internal entity))
  58      (mime-entity-encoding entity))))
  59
  60 (defun mmbuffer-write-entity-content (entity filename)
  61   (save-excursion
  62     (set-buffer (mime-entity-buffer-internal entity))
  63     (mime-write-decoded-region (mime-entity-body-start-internal entity)
  64                                (mime-entity-body-end-internal entity)
  65                                filename
  66                                (or (mime-entity-encoding entity) "7bit"))
  67     ))
  68
  69 (defun mmbuffer-write-entity (entity filename)
  70   (save-excursion
  71     (set-buffer (mime-entity-buffer entity))
  72     (write-region-as-binary (mime-entity-point-min entity)
  73                             (mime-entity-point-max entity) filename)
  74     ))
  75
  76 (defun mmbuffer-write-entity-body (entity filename)
  77   (save-excursion
  78     (set-buffer (mime-entity-buffer entity))
  79     (write-region-as-binary (mime-entity-body-start entity)
  80                             (mime-entity-body-end entity) filename)
  81     ))
  82
  83 (defun mmbuffer-insert-decoded-header (entity &optional invisible-fields
  84                                               visible-fields)
  85   (save-restriction
  86     (narrow-to-region (point)(point))
  87     (let ((the-buf (current-buffer))
  88           (src-buf (mime-entity-buffer entity))
  89           (h-end (mime-entity-header-end entity))
  90           beg p end field-name len field)
  91       (save-excursion
  92         (set-buffer src-buf)
  93         (goto-char (mime-entity-header-start entity))
  94         (save-restriction
  95           (narrow-to-region (point) h-end)
  96           (while (re-search-forward std11-field-head-regexp nil t)
  97             (setq beg (match-beginning 0)
  98                   p (match-end 0)
  99                   field-name (buffer-substring beg (1- p))
 100                   len (string-width field-name)
 101                   end (std11-field-end))
 102             (when (eword-visible-field-p field-name
 103                                          visible-fields invisible-fields)
 104               (setq field (intern (capitalize field-name)))
 105               (save-excursion
 106                 (set-buffer the-buf)
 107                 (insert field-name)
 108                 (insert ":")
 109                 (cond ((memq field eword-decode-ignored-field-list)
 110                        ;; Don't decode
 111                        (insert-buffer-substring src-buf p end)
 112                        )
 113                       ((memq field eword-decode-structured-field-list)
 114                        ;; Decode as structured field
 115                        (let ((body (save-excursion
 116                                      (set-buffer src-buf)
 117                                      (buffer-substring p end)
 118                                      )))
 119                          (insert (eword-decode-and-fold-structured-field
 120                                   body (1+ len)))
 121                          ))
 122                       (t
 123                        ;; Decode as unstructured field
 124                        (let ((body (save-excursion
 125                                      (set-buffer src-buf)
 126                                      (buffer-substring p end)
 127                                      )))
 128                          (insert (eword-decode-unstructured-field-body
 129                                   body (1+ len)))
 130                          )))
 131                 (insert "\n")
 132                 ))))))))
 133
 134
 135 ;;; @ end
 136 ;;;
 137
 138 (provide 'mmbuffer)
 139
 140 ;;; mmbuffer.el ends here