1 ;;; mel-u.el: uuencode encoder/decoder for GNU Emacs
3 ;; Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
5 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
9 ;; This file is part of MEL (MIME Encoding Library).
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 GNU Emacs; 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.
35 (defvar uuencode-external-encoder '("uuencode" "-")
36 "*list of uuencode encoder program name and its arguments.")
38 (defvar uuencode-external-decoder '("sh" "-c" "uudecode")
39 "*list of uuencode decoder program name and its arguments.")
42 ;;; @ uuencode encoder/decoder for region
45 (defun uuencode-external-encode-region (start end)
46 "Encode current region by unofficial uuencode format.
47 This function uses external uuencode encoder which is specified by
48 variable `uuencode-external-encoder'."
51 (as-binary-process (apply (function call-process-region)
52 start end (car uuencode-external-encoder)
53 t t nil (cdr uuencode-external-encoder))
56 ;; regularize line break code
57 (goto-char (point-min))
58 (while (re-search-forward "\r$" nil t)
63 (defun uuencode-external-decode-region (start end)
64 "Decode current region by unofficial uuencode format.
65 This function uses external uuencode decoder which is specified by
66 variable `uuencode-external-decoder'."
69 (let ((filename (save-excursion
71 (narrow-to-region start end)
73 (if (re-search-forward "^begin [0-9]+ " nil t)
74 (if (looking-at ".+$")
75 (buffer-substring (match-beginning 0)
78 (default-directory mime-temp-directory))
81 (apply (function call-process-region)
82 start end (car uuencode-external-decoder)
83 t nil nil (cdr uuencode-external-decoder))
84 (as-binary-input-file (insert-file-contents filename))
85 ;; The previous line causes the buffer to be made read-only, I
86 ;; do not pretend to understand the control flow leading to this
87 ;; but suspect it has something to do with image-mode. -slb
88 ;; Use `inhibit-read-only' to avoid to force
89 ;; buffer-read-only nil. - tomo.
90 (let ((inhibit-read-only t))
91 (delete-file filename)
96 (defalias 'uuencode-encode-region 'uuencode-external-encode-region)
97 (defalias 'uuencode-decode-region 'uuencode-external-decode-region)
100 ;;; @ uuencode encoder/decoder for file
103 (defun uuencode-insert-encoded-file (filename)
104 "Insert file encoded by unofficial uuencode format.
105 This function uses external uuencode encoder which is specified by
106 variable `uuencode-external-encoder'."
107 (interactive (list (read-file-name "Insert encoded file: ")))
108 (call-process (car uuencode-external-encoder) filename t nil
109 (file-name-nondirectory filename))
112 (defun uuencode-write-decoded-region (start end filename)
113 "Decode and write current region encoded by uuencode into FILENAME.
114 START and END are buffer positions."
116 (list (region-beginning) (region-end)
117 (read-file-name "Write decoded region to file: ")))
119 (let ((file (save-excursion
121 (narrow-to-region start end)
123 (if (re-search-forward "^begin [0-9]+ " nil t)
124 (if (looking-at ".+$")
125 (buffer-substring (match-beginning 0)
128 (default-directory mime-temp-directory))
131 (apply (function call-process-region)
132 start end (car uuencode-external-decoder)
133 nil nil nil (cdr uuencode-external-decoder))
134 (rename-file file filename 'overwrites)
143 ;;; mel-u.el ends here