1 ;;; mel-u.el --- uuencode encoder/decoder.
3 ;; Copyright (C) 1995,1996,1997,1998,1999 Free Software Foundation, Inc.
5 ;; Author: MORIOKA Tomohiko <tomo@m17n.org>
9 ;; This file is part of FLIM (Faithful Library about Internet Message).
11 ;; This program is free software; you can redistribute it and/or
12 ;; modify it under the terms of the GNU General Public License as
13 ;; published by the Free Software Foundation; either version 2, or (at
14 ;; your option) any later version.
16 ;; This program is distributed in the hope that it will be useful, but
17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 ;; General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with this program; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 ;; Boston, MA 02111-1307, USA.
32 (mel-define-backend "x-uue")
38 (defvar uuencode-external-encoder '("uuencode" "-")
39 "*list of uuencode encoder program name and its arguments.")
41 (defvar uuencode-external-decoder '("sh" "-c" "uudecode")
42 "*list of uuencode decoder program name and its arguments.")
45 ;;; @ uuencode encoder/decoder for region
48 (defun uuencode-external-encode-region (start end)
49 "Encode current region by unofficial uuencode format.
50 This function uses external uuencode encoder which is specified by
51 variable `uuencode-external-encoder'."
55 (apply (function call-process-region)
56 start end (car uuencode-external-encoder)
58 (cdr uuencode-external-encoder)))
60 ;; regularize line break code
61 (goto-char (point-min))
62 (while (re-search-forward "\r$" nil t)
65 (defun uuencode-external-decode-region (start end)
66 "Decode current region by unofficial uuencode format.
67 This function uses external uuencode decoder which is specified by
68 variable `uuencode-external-decoder'."
71 (let ((filename (save-excursion
73 (narrow-to-region start end)
75 (if (re-search-forward "^begin [0-9]+ " nil t)
76 (if (looking-at ".+$")
77 (buffer-substring (match-beginning 0)
79 (default-directory temporary-file-directory))
82 (apply (function call-process-region)
83 start end (car uuencode-external-decoder)
85 (cdr uuencode-external-decoder))
86 (as-binary-input-file (insert-file-contents filename))
87 ;; The previous line causes the buffer to be made read-only, I
88 ;; do not pretend to understand the control flow leading to this
89 ;; but suspect it has something to do with image-mode. -slb
90 ;; Use `inhibit-read-only' to avoid to force
91 ;; buffer-read-only nil. - tomo.
92 (let ((inhibit-read-only t))
93 (delete-file filename)))))))
95 (mel-define-method-function (mime-encode-region start end (nil "x-uue"))
96 'uuencode-external-encode-region)
97 (mel-define-method-function (mime-decode-region start end (nil "x-uue"))
98 'uuencode-external-decode-region)
101 ;;; @ encoder/decoder for string
104 (mel-define-method mime-encode-string (string (nil "x-uue"))
107 (uuencode-external-encode-region (point-min)(point-max))
110 (mel-define-method mime-decode-string (string (nil "x-uue"))
113 (uuencode-external-decode-region (point-min)(point-max))
117 ;;; @ uuencode encoder/decoder for file
120 (mel-define-method mime-insert-encoded-file (filename (nil "x-uue"))
121 "Insert file encoded by unofficial uuencode format.
122 This function uses external uuencode encoder which is specified by
123 variable `uuencode-external-encoder'."
124 (interactive "*fInsert encoded file: ")
125 (call-process (car uuencode-external-encoder)
127 (file-name-nondirectory filename)))
129 (mel-define-method mime-write-decoded-region (start end filename
131 "Decode and write current region encoded by uuencode into FILENAME.
132 START and END are buffer positions."
133 (interactive "*r\nFWrite decoded region to file: ")
135 (let ((file (save-excursion
137 (narrow-to-region start end)
139 (if (re-search-forward "^begin [0-9]+ " nil t)
140 (if (looking-at ".+$")
141 (buffer-substring (match-beginning 0)
143 (default-directory temporary-file-directory))
146 (apply (function call-process-region)
147 start end (car uuencode-external-decoder)
149 (cdr uuencode-external-decoder))
150 (rename-file file filename 'overwrites))))))
158 (mel-define-backend "x-uuencode" ("x-uue"))
160 ;;; mel-u.el ends here.