+;;; mel.el : a MIME encoding/decoding library
+
+;; Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
+
+;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
+;; modified by Shuhei KOBAYASHI <shuhei-k@jaist.ac.jp>
+;; Created: 1995/6/25
+;; Keywords: MIME, Base64, Quoted-Printable, uuencode, gzip64
+
+;; This file is part of MEL (MIME Encoding Library).
+
+;; This program is free software; you can redistribute it and/or
+;; modify it under the terms of the GNU General Public License as
+;; published by the Free Software Foundation; either version 2, or (at
+;; your option) any later version.
+
+;; This program is distributed in the hope that it will be useful, but
+;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+;; General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Code:
+
+(require 'emu)
+
+
+;;; @ variable
;;;
-;;; mel : a MIME encoding library
+
+(defvar base64-dl-module
+ (and (fboundp 'dynamic-link)
+ (let ((path (expand-file-name "base64.so" exec-directory)))
+ (and (file-exists-p path)
+ path))))
+
+
+;;; @ autoload
;;;
-;;; by MORIOKA Tomohiko <morioka@jaist.ac.jp>, 1995/6/25
+
+(cond (base64-dl-module
+ (autoload 'base64-encode-string "mel-dl"
+ "Encode STRING to base64, and return the result.")
+ (autoload 'base64-decode-string "mel-dl"
+ "Decode STRING which is encoded in base64, and return the result.")
+ (autoload 'base64-encode-region "mel-dl"
+ "Encode current region by base64." t)
+ (autoload 'base64-decode-region "mel-dl"
+ "Decode current region by base64." t)
+ (autoload 'base64-insert-encoded-file "mel-dl"
+ "Encode contents of file to base64, and insert the result." t)
+ (autoload 'base64-write-decoded-region "mel-dl"
+ "Decode and write current region encoded by base64 into FILENAME." t)
+ ;; for encoded-word
+ (autoload 'base64-encoded-length "mel-dl")
+ )
+ (t
+ (autoload 'base64-encode-string "mel-b"
+ "Encode STRING to base64, and return the result.")
+ (autoload 'base64-decode-string "mel-b"
+ "Decode STRING which is encoded in base64, and return the result.")
+ (autoload 'base64-encode-region "mel-b"
+ "Encode current region by base64." t)
+ (autoload 'base64-decode-region "mel-b"
+ "Decode current region by base64." t)
+ (autoload 'base64-insert-encoded-file "mel-b"
+ "Encode contents of file to base64, and insert the result." t)
+ (autoload 'base64-write-decoded-region "mel-b"
+ "Decode and write current region encoded by base64 into FILENAME." t)
+ ;; for encoded-word
+ (autoload 'base64-encoded-length "mel-b")
+ ))
+
+(autoload 'quoted-printable-encode-string "mel-q"
+ "Encode STRING to quoted-printable, and return the result.")
+(autoload 'quoted-printable-decode-string "mel-q"
+ "Decode STRING which is encoded in quoted-printable, and return the result.")
+(autoload 'quoted-printable-encode-region "mel-q"
+ "Encode current region by Quoted-Printable." t)
+(autoload 'quoted-printable-decode-region "mel-q"
+ "Decode current region by Quoted-Printable." t)
+(autoload 'quoted-printable-insert-encoded-file "mel-q"
+ "Encode contents of file to quoted-printable, and insert the result." t)
+(autoload 'quoted-printable-write-decoded-region "mel-q"
+ "Decode and write current region encoded by quoted-printable into FILENAME."
+ t)
+;; for encoded-word
+(autoload 'q-encoding-encode-string "mel-q"
+ "Encode STRING to Q-encoding of encoded-word, and return the result.")
+(autoload 'q-encoding-decode-string "mel-q"
+ "Decode STRING which is encoded in Q-encoding and return the result.")
+(autoload 'q-encoding-encoded-length "mel-q")
+
+(autoload 'uuencode-encode-region "mel-u"
+ "Encode current region by unofficial uuencode format." t)
+(autoload 'uuencode-decode-region "mel-u"
+ "Decode current region by unofficial uuencode format." t)
+(autoload 'uuencode-insert-encoded-file "mel-u"
+ "Insert file encoded by unofficial uuencode format." t)
+(autoload 'uuencode-write-decoded-region "mel-u"
+ "Decode and write current region encoded by uuencode into FILENAME." t)
+
+(autoload 'gzip64-encode-region "mel-g"
+ "Encode current region by unofficial x-gzip64 format." t)
+(autoload 'gzip64-decode-region "mel-g"
+ "Decode current region by unofficial x-gzip64 format." t)
+(autoload 'gzip64-insert-encoded-file "mel-g"
+ "Insert file encoded by unofficial gzip64 format." t)
+(autoload 'gzip64-write-decoded-region "mel-g"
+ "Decode and write current region encoded by gzip64 into FILENAME." t)
+
+
+;;; @ region
;;;
-;;; $Id: mel.el,v 1.4 1995/06/26 05:57:39 morioka Exp $
+
+;;;###autoload
+(defvar mime-encoding-method-alist
+ '(("base64" . base64-encode-region)
+ ("quoted-printable" . quoted-printable-encode-region)
+ ;; Not standard, their use is DISCOURAGED.
+ ;; ("x-uue" . uuencode-encode-region)
+ ;; ("x-gzip64" . gzip64-encode-region)
+ ("7bit")
+ ("8bit")
+ ("binary")
+ )
+ "Alist of encoding vs. corresponding method to encode region.
+Each element looks like (STRING . FUNCTION) or (STRING . nil).
+STRING is content-transfer-encoding.
+FUNCTION is region encoder and nil means not to encode.")
+
+;;;###autoload
+(defvar mime-decoding-method-alist
+ '(("base64" . base64-decode-region)
+ ("quoted-printable" . quoted-printable-decode-region)
+ ("x-uue" . uuencode-decode-region)
+ ("x-uuencode" . uuencode-decode-region)
+ ("x-gzip64" . gzip64-decode-region)
+ )
+ "Alist of encoding vs. corresponding method to decode region.
+Each element looks like (STRING . FUNCTION).
+STRING is content-transfer-encoding.
+FUNCTION is region decoder.")
+
+;;;###autoload
+(defvar mime-string-decoding-method-alist
+ '(("base64" . base64-decode-string)
+ ("quoted-printable" . quoted-printable-decode-string)
+ ("7bit" . identity)
+ ("8bit" . identity)
+ ("binary" . identity)
+ )
+ "Alist of encoding vs. corresponding method to decode string.
+Each element looks like (STRING . FUNCTION).
+STRING is content-transfer-encoding.
+FUNCTION is string decoder.")
+
+;;;###autoload
+(defun mime-encode-region (start end encoding)
+ "Encode region START to END of current buffer using ENCODING.
+ENCODING must be string. If ENCODING is found in
+`mime-encoding-method-alist' as its key, this function encodes the
+region by its value."
+ (interactive
+ (list (region-beginning) (region-end)
+ (completing-read "encoding: "
+ mime-encoding-method-alist
+ nil t "base64"))
+ )
+ (let ((f (cdr (assoc encoding mime-encoding-method-alist))))
+ (if f
+ (funcall f start end)
+ )))
+
+;;;###autoload
+(defun mime-decode-region (start end encoding)
+ "Decode region START to END of current buffer using ENCODING.
+ENCODING must be string. If ENCODING is found in
+`mime-decoding-method-alist' as its key, this function decodes the
+region by its value."
+ (interactive
+ (list (region-beginning) (region-end)
+ (completing-read "encoding: "
+ mime-decoding-method-alist
+ nil t "base64"))
+ )
+ (let ((f (cdr (assoc encoding mime-decoding-method-alist))))
+ (if f
+ (funcall f start end)
+ )))
+
+;;;###autoload
+(defun mime-decode-string (string encoding)
+ "Decode STRING using ENCODING.
+ENCODING must be string. If ENCODING is found in
+`mime-string-decoding-method-alist' as its key, this function decodes
+the STRING by its value."
+ (let ((f (cdr (assoc encoding mime-string-decoding-method-alist))))
+ (if f
+ (funcall f string)
+ (with-temp-buffer
+ (insert string)
+ (mime-decode-region (point-min)(point-max) encoding)
+ (buffer-string)
+ ))))
+
+
+;;; @ file
;;;
-(autoload 'base64-encode-region "mel-b" nil t)
-(autoload 'base64-decode-region "mel-b" nil t)
-(autoload 'base64-encode-string "mel-b")
-(autoload 'base64-decode-string "mel-b")
-(autoload 'base64-encoded-length "mel-b")
+;;;###autoload
+(defvar mime-file-encoding-method-alist
+ '(("base64" . base64-insert-encoded-file)
+ ("quoted-printable" . quoted-printable-insert-encoded-file)
+ ;; Not standard, their use is DISCOURAGED.
+ ;; ("x-uue" . uuencode-insert-encoded-file)
+ ;; ("x-gzip64" . gzip64-insert-encoded-file)
+ ("7bit" . insert-file-contents-as-binary)
+ ("8bit" . insert-file-contents-as-binary)
+ ("binary" . insert-file-contents-as-binary)
+ )
+ "Alist of encoding vs. corresponding method to insert encoded file.
+Each element looks like (STRING . FUNCTION).
+STRING is content-transfer-encoding.
+FUNCTION is function to insert encoded file.")
-(autoload 'quoted-printable-encode-region "mel-q" nil t)
-(autoload 'quoted-printable-decode-region "mel-q" nil t)
+;;;###autoload
+(defvar mime-file-decoding-method-alist
+ '(("base64" . base64-write-decoded-region)
+ ("quoted-printable" . quoted-printable-write-decoded-region)
+ ("x-uue" . uuencode-write-decoded-region)
+ ("x-gzip64" . gzip64-write-decoded-region)
+ ("7bit" . write-region-as-binary)
+ ("8bit" . write-region-as-binary)
+ ("binary" . write-region-as-binary)
+ )
+ "Alist of encoding vs. corresponding method to write decoded region to file.
+Each element looks like (STRING . FUNCTION).
+STRING is content-transfer-encoding.
+FUNCTION is function to write decoded region to file.")
-(autoload 'q-encoding-encode-string-for-text "mel-q")
-(autoload 'q-encoding-encode-string-for-comment "mel-q")
-(autoload 'q-encoding-encode-string-for-phrase "mel-q")
-(autoload 'q-encoding-encode-string "mel-q")
-(autoload 'q-encoding-decode-string "mel-q")
-(autoload 'q-encoding-encoded-length "mel-q")
+;;;###autoload
+(defun mime-insert-encoded-file (filename encoding)
+ "Insert file FILENAME encoded by ENCODING format."
+ (interactive
+ (list (read-file-name "Insert encoded file: ")
+ (completing-read "encoding: "
+ mime-encoding-method-alist
+ nil t "base64"))
+ )
+ (let ((f (cdr (assoc encoding mime-file-encoding-method-alist))))
+ (if f
+ (funcall f filename)
+ )))
+
+;;;###autoload
+(defun mime-write-decoded-region (start end filename encoding)
+ "Decode and write current region encoded by ENCODING into FILENAME.
+START and END are buffer positions."
+ (interactive
+ (list (region-beginning) (region-end)
+ (read-file-name "Write decoded region to file: ")
+ (completing-read "encoding: "
+ mime-file-decoding-method-alist
+ nil t "base64")))
+ (let ((f (cdr (assoc encoding mime-file-decoding-method-alist))))
+ (if f
+ (funcall f start end filename)
+ )))
+
+
+;;; @ end
+;;;
(provide 'mel)
+
+;;; mel.el ends here.
projects / elisp / flim.git / blobdiff