-;;;
;;; 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
;;;
-;;; Copyright (C) 1995 Free Software Foundation, Inc.
-;;; Copyright (C) 1995,1996 MORIOKA Tomohiko
-;;;
-;;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
-;;; modified by Shuhei KOBAYASHI <shuhei@cmpt01.phys.tohoku.ac.jp>
-;;; Maintainer: MORIOKA Tomohiko <morioka@jaist.ac.jp>
-;;; Created: 1995/6/25
-;;; Version:
-;;; $Id: mel.el,v 3.5 1996/03/13 16:05:41 morioka Exp $
-;;; 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.
+
+(defvar base64-internal-encoding-limit 1000
+ "*limit size to use internal base64 encoder.
+If size of input to encode is larger than this limit,
+external encoder is called.")
+
+(defvar base64-internal-decoding-limit 1000
+ "*limit size to use internal base64 decoder.
+ size of input to decode is larger than this limit,
+external decoder is called.")
+
+(defvar quoted-printable-internal-encoding-limit
+ (if (and (featurep 'xemacs)(featurep 'mule))
+ 0
+ (require 'path-util)
+ (if (exec-installed-p "mmencode")
+ 1000
+ (message "Don't found external encoder for Quoted-Printable!")
+ nil))
+ "*limit size to use internal quoted-printable encoder.
+If size of input to encode is larger than this limit,
+external encoder is called.")
+
+(defvar quoted-printable-internal-decoding-limit nil
+ "*limit size to use internal quoted-printable decoder.
+If size of input to decode is larger than this limit,
+external decoder is called.")
+
+
+;;; @ autoload
;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with This program. If not, write to the Free Software
-;;; Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+;; mel-dl
+(defvar base64-dl-module
+ (and (fboundp 'dynamic-link)
+ (let ((path (expand-file-name "base64.so" exec-directory)))
+ (and (file-exists-p path)
+ path))))
+
+(when base64-dl-module
+ (autoload 'base64-dl-encode-string "mel-dl"
+ "Encode STRING to base64, and return the result.")
+ (autoload 'base64-dl-decode-string "mel-dl"
+ "Decode STRING which is encoded in base64, and return the result.")
+ (autoload 'base64-dl-encode-region "mel-dl"
+ "Encode current region by base64." t)
+ (autoload 'base64-dl-decode-region "mel-dl"
+ "Decode current region by base64." t))
+
+;; mel-b
+(autoload 'base64-internal-encode-string "mel-b"
+ "Encode STRING to base64, and return the result.")
+(autoload 'base64-internal-decode-string "mel-b"
+ "Decode STRING which is encoded in base64, and return the result.")
+(autoload 'base64-internal-encode-region "mel-b"
+ "Encode current region by base64." t)
+(autoload 'base64-internal-decode-region "mel-b"
+ "Decode current region by base64." t)
+(autoload 'base64-internal-insert-encoded-file "mel-b"
+ "Encode contents of file to base64, and insert the result." t)
+(autoload 'base64-internal-write-decoded-region "mel-b"
+ "Decode and write current region encoded by base64 into FILENAME." t)
+
+(autoload 'base64-external-encode-string "mel-b"
+ "Encode STRING to base64, and return the result.")
+(autoload 'base64-external-decode-string "mel-b"
+ "Decode STRING which is encoded in base64, and return the result.")
+(autoload 'base64-external-encode-region "mel-b"
+ "Encode current region by base64." t)
+(autoload 'base64-external-decode-region "mel-b"
+ "Decode current region by base64." t)
+(autoload 'base64-external-insert-encoded-file "mel-b"
+ "Encode contents of file to base64, and insert the result." t)
+(autoload 'base64-external-write-decoded-region "mel-b"
+ "Decode and write current region encoded by base64 into FILENAME." t)
+
+;; for encoded-word
+(autoload 'base64-internal-encoded-length "mel-b")
+
+;; mel-q
+(autoload 'quoted-printable-internal-encode-string "mel-q"
+ "Encode STRING to quoted-printable, and return the result.")
+(autoload 'quoted-printable-internal-decode-string "mel-q"
+ "Decode STRING which is encoded in quoted-printable, and return the result.")
+(autoload 'quoted-printable-internal-encode-region "mel-q"
+ "Encode current region by Quoted-Printable." t)
+(autoload 'quoted-printable-internal-decode-region "mel-q"
+ "Decode current region by Quoted-Printable." t)
+
+(autoload 'quoted-printable-external-encode-string "mel-q"
+ "Encode STRING to quoted-printable, and return the result.")
+(autoload 'quoted-printable-external-decode-string "mel-q"
+ "Decode STRING which is encoded in quoted-printable, and return the result.")
+(autoload 'quoted-printable-external-encode-region "mel-q"
+ "Encode current region by Quoted-Printable." t)
+(autoload 'quoted-printable-external-decode-region "mel-q"
+ "Decode current region by Quoted-Printable." t)
+
+(autoload 'quoted-printable-external-insert-encoded-file "mel-q"
+ "Encode contents of file to quoted-printable, and insert the result." t)
+(autoload 'quoted-printable-external-write-decoded-region "mel-q"
+ "Decode and write current region encoded by quoted-printable into FILENAME."
+ t)
+
+;; for encoded-word
+(autoload 'q-encoding-internal-encode-string "mel-q"
+ "Encode STRING to Q-encoding of encoded-word, and return the result.")
+(autoload 'q-encoding-internal-decode-string "mel-q"
+ "Decode STRING which is encoded in Q-encoding and return the result.")
+(autoload 'q-encoding-internal-encoded-length "mel-q")
+
+;; mel-u
+(autoload 'uuencode-external-encode-region "mel-u"
+ "Encode current region by unofficial uuencode format." t)
+(autoload 'uuencode-external-decode-region "mel-u"
+ "Decode current region by unofficial uuencode format." t)
+(autoload 'uuencode-external-insert-encoded-file "mel-u"
+ "Insert file encoded by unofficial uuencode format." t)
+(autoload 'uuencode-external-write-decoded-region "mel-u"
+ "Decode and write current region encoded by uuencode into FILENAME." t)
+
+;; mel-g
+(autoload 'gzip64-external-encode-region "mel-g"
+ "Encode current region by unofficial x-gzip64 format." t)
+(autoload 'gzip64-external-decode-region "mel-g"
+ "Decode current region by unofficial x-gzip64 format." t)
+(autoload 'gzip64-external-insert-encoded-file "mel-g"
+ "Insert file encoded by unofficial gzip64 format." t)
+(autoload 'gzip64-external-write-decoded-region "mel-g"
+ "Decode and write current region encoded by gzip64 into FILENAME." t)
+
+;; mel-ccl
+(when (fboundp 'make-ccl-coding-system)
+ (unless (and (boundp 'ccl-encoder-eof-block-is-broken)
+ ccl-encoder-eof-block-is-broken)
+ (autoload 'base64-ccl-encode-string "mel-ccl"
+ "Encode STRING with base64 encoding.")
+ (autoload 'base64-ccl-encode-region "mel-ccl"
+ "Encode region from START to END with base64 encoding." t)
+ (autoload 'base64-ccl-insert-encoded-file "mel-ccl"
+ "Encode contents of file FILENAME to base64, and insert the result." t))
+
+ (autoload 'base64-ccl-decode-string "mel-ccl"
+ "Decode base64 encoded STRING")
+ (autoload 'base64-ccl-decode-region "mel-ccl"
+ "Decode base64 encoded STRING" t)
+ (autoload 'base64-ccl-write-decoded-region "mel-ccl"
+ "Decode the region from START to END and write out to FILENAME." t)
+
+ (unless (and (boundp 'ccl-encoder-eof-block-is-broken)
+ ccl-encoder-eof-block-is-broken)
+ (autoload 'quoted-printable-ccl-encode-string "mel-ccl"
+ "Encode STRING with quoted-printable encoding.")
+ (autoload 'quoted-printable-ccl-encode-region "mel-ccl"
+ "Encode the region from START to END with quoted-printable
+ encoding." t)
+ (autoload 'quoted-printable-ccl-insert-encoded-file "mel-ccl"
+ "Encode contents of the file named as FILENAME, and insert it." t))
+
+ (autoload 'quoted-printable-ccl-decode-string "mel-ccl"
+ "Decode quoted-printable encoded STRING.")
+ (autoload 'quoted-printable-ccl-decode-region "mel-ccl"
+ "Decode the region from START to END with quoted-printable
+ encoding.")
+ (autoload 'quoted-printable-ccl-write-decoded-region "mel-ccl"
+ "Decode quoted-printable encoded current region and write out to FILENAME." t)
+
+ (autoload 'q-encoding-ccl-encode-string "mel-ccl"
+ "Encode STRING to Q-encoding of encoded-word, and return the result.
+ MODE allows `text', `comment', `phrase' or nil. Default value is
+ `phrase'.")
+ (autoload 'q-encoding-ccl-decode-string "mel-ccl"
+ "Decode Q encoded STRING and return the result.")
+
+ (unless running-xemacs
+ (autoload 'q-encoding-ccl-encoded-length "mel-ccl"
+ "Encode STRING to Q-encoding of encoded-word, and return the result.
+MODE allows `text', `comment', `phrase' or nil. Default value is
+`phrase'.")
+ )
+ )
+
+
+;;; @ entrance functions.
;;;
-;;; Code:
-(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")
+(cond
+ ((fboundp 'base64-dl-encode-string)
+ (defalias 'base64-encode-string 'base64-dl-encode-string))
+ ((fboundp 'base64-ccl-encode-string)
+ (defalias 'base64-encode-string 'base64-ccl-encode-string))
+ (t
+ (defalias 'base64-encode-string 'base64-internal-encode-string)))
+
+(defun base64-internal-external-decode-string (string)
+ "Decode STRING which is encoded in base64, and return the result.
+This function calls internal base64 decoder if size of STRING is
+smaller than `base64-internal-decoding-limit', otherwise it calls
+external base64 decoder specified by `base64-external-decoder'. In
+this case, you must install the program (maybe mmencode included in
+metamail or XEmacs package)."
+ (interactive "r")
+ (if (and base64-internal-decoding-limit
+ (> (length string) base64-internal-decoding-limit))
+ (base64-external-decode-string string)
+ (base64-internal-decode-string string)))
+
+(cond
+ ((fboundp 'base64-dl-decode-string)
+ (defalias 'base64-decode-string 'base64-dl-decode-string))
+ ((fboundp 'base64-ccl-decode-string)
+ (defalias 'base64-decode-string 'base64-ccl-decode-string))
+ (t
+ (defalias 'base64-decode-string 'base64-internal-external-decode-string)))
+
+(defun base64-internal-external-encode-region (start end)
+ "Encode current region by base64.
+START and END are buffer positions.
+This function calls internal base64 encoder if size of region is
+smaller than `base64-internal-encoding-limit', otherwise it calls
+external base64 encoder specified by `base64-external-encoder'. In
+this case, you must install the program (maybe mmencode included in
+metamail or XEmacs package)."
+ (interactive "r")
+ (if (and base64-internal-encoding-limit
+ (> (- end start) base64-internal-encoding-limit))
+ (base64-external-encode-region start end)
+ (base64-internal-encode-region start end)))
+
+(cond
+ ((fboundp 'base64-dl-encode-region)
+ (defalias 'base64-encode-region 'base64-dl-encode-region)) ; no fold
+ ((fboundp 'base64-ccl-encode-region)
+ (defalias 'base64-encode-region 'base64-ccl-encode-region)) ; LF fold
+ (t
+ (defalias 'base64-encode-region 'base64-internal-external-encode-region))) ; LF fold
+
+(defun base64-internal-external-decode-region (start end)
+ "Decode current region by base64.
+START and END are buffer positions.
+This function calls internal base64 decoder if size of region is
+smaller than `base64-internal-decoding-limit', otherwise it calls
+external base64 decoder specified by `base64-external-decoder'. In
+this case, you must install the program (maybe mmencode included in
+metamail or XEmacs package)."
+ (interactive "r")
+ (if (and base64-internal-decoding-limit
+ (> (- end start) base64-internal-decoding-limit))
+ (base64-external-decode-region start end)
+ (base64-internal-decode-region start end)))
-(autoload 'quoted-printable-encode-region "mel-q" nil t)
-(autoload 'quoted-printable-decode-region "mel-q" nil t)
+(cond
+ ((fboundp 'base64-dl-decode-region)
+ (defalias 'base64-decode-region 'base64-dl-decode-region))
+ ((fboundp 'base64-ccl-decode-region)
+ (defalias 'base64-decode-region 'base64-ccl-decode-region))
+ (t
+ (defalias 'base64-decode-region 'base64-internal-external-decode-region)))
-(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")
+(defun base64-internal-external-insert-encoded-file (filename)
+ "Encode contents of file FILENAME to base64, and insert the result.
+It calls external base64 encoder specified by
+`base64-external-encoder'. So you must install the program (maybe
+mmencode included in metamail or XEmacs package)."
+ (interactive (list (read-file-name "Insert encoded file: ")))
+ (if (and base64-internal-encoding-limit
+ (> (nth 7 (file-attributes filename))
+ base64-internal-encoding-limit))
+ (base64-external-insert-encoded-file filename)
+ (base64-internal-insert-encoded-file filename)))
-(autoload 'uuencode-encode-region "mel-u" nil t)
-(autoload 'uuencode-decode-region "mel-u" nil t)
+(cond
+ ((fboundp 'base64-ccl-insert-encoded-file)
+ (defalias 'base64-insert-encoded-file 'base64-ccl-insert-encoded-file))
+ (t
+ (defalias 'base64-insert-encoded-file 'base64-internal-external-insert-encoded-file)))
-(autoload 'gzip64-encode-region "mel-g" nil t)
-(autoload 'gzip64-decode-region "mel-g" nil t)
+(defun base64-internal-external-write-decoded-region (start end filename)
+ "Decode and write current region encoded by base64 into FILENAME.
+START and END are buffer positions."
+ (interactive
+ (list (region-beginning) (region-end)
+ (read-file-name "Write decoded region to file: ")))
+ (if (and base64-internal-decoding-limit
+ (> (- end start) base64-internal-decoding-limit))
+ (base64-external-write-decoded-region start end filename)
+ (base64-internal-write-decoded-region start end filename)))
+
+(cond
+ ((fboundp 'base64-ccl-write-decoded-region)
+ (defalias 'base64-write-decoded-region 'base64-ccl-write-decoded-region))
+ (t
+ (defalias 'base64-write-decoded-region 'base64-internal-external-write-decoded-region)))
+
+(cond
+ (t
+ (defalias 'base64-encoded-length 'base64-internal-encoded-length)))
+
+(cond
+ ((fboundp 'quoted-printable-ccl-encode-string)
+ (defalias 'quoted-printable-encode-string 'quoted-printable-ccl-encode-string))
+ (t
+ (defun quoted-printable-encode-string (string)
+ "Encode STRING to quoted-printable, and return the result."
+ (if (and quoted-printable-internal-encoding-limit
+ (> (length string) quoted-printable-internal-encoding-limit))
+ (quoted-printable-external-encode-string string)
+ (quoted-printable-internal-encode-string string)))))
+
+(cond
+ ((fboundp 'quoted-printable-ccl-decode-string)
+ (defalias 'quoted-printable-decode-string 'quoted-printable-ccl-decode-string))
+ (t
+ (defun quoted-printable-decode-string (string)
+ "Decode STRING which is encoded in quoted-printable, and return the result."
+ (if (and quoted-printable-internal-decoding-limit
+ (> (length string) quoted-printable-internal-decoding-limit))
+ (quoted-printable-external-decode-string string)
+ (quoted-printable-internal-decode-string string)))))
+
+(cond
+ ((fboundp 'quoted-printable-ccl-encode-region)
+ (defalias 'quoted-printable-encode-region 'quoted-printable-ccl-encode-region))
+ (t
+ (defun quoted-printable-encode-region (start end)
+ "Encode current region by quoted-printable.
+START and END are buffer positions.
+This function calls internal quoted-printable encoder if size of
+region is smaller than `quoted-printable-internal-encoding-limit',
+otherwise it calls external quoted-printable encoder specified by
+`quoted-printable-external-encoder'. In this case, you must install
+the program (maybe mmencode included in metamail or XEmacs package)."
+ (interactive "r")
+ (if (and quoted-printable-internal-encoding-limit
+ (> (- end start) quoted-printable-internal-encoding-limit))
+ (quoted-printable-external-encode-region start end)
+ (quoted-printable-internal-encode-region start end)
+ ))))
+
+(cond
+ ((fboundp 'quoted-printable-ccl-decode-region)
+ (defalias 'quoted-printable-decode-region 'quoted-printable-ccl-decode-region))
+ (t
+ (defun quoted-printable-decode-region (start end)
+ "Decode current region by quoted-printable.
+START and END are buffer positions.
+This function calls internal quoted-printable decoder if size of
+region is smaller than `quoted-printable-internal-decoding-limit',
+otherwise it calls external quoted-printable decoder specified by
+`quoted-printable-external-decoder'. In this case, you must install
+the program (maybe mmencode included in metamail or XEmacs package)."
+ (interactive "r")
+ (if (and quoted-printable-internal-decoding-limit
+ (> (- end start) quoted-printable-internal-decoding-limit))
+ (quoted-printable-external-decode-region start end)
+ (quoted-printable-internal-decode-region start end)
+ ))))
+
+(cond
+ ((fboundp 'quoted-printable-ccl-insert-encoded-file)
+ (defalias 'quoted-printable-insert-encoded-file 'quoted-printable-ccl-insert-encoded-file))
+ (t
+ (defalias 'quoted-printable-insert-encoded-file 'quoted-printable-external-insert-encoded-file)))
+
+(cond
+ ((fboundp 'quoted-printable-ccl-write-decoded-region)
+ (defalias 'quoted-printable-write-decoded-region 'quoted-printable-ccl-write-decoded-region))
+ (t
+ (defalias 'quoted-printable-write-decoded-region 'quoted-printable-external-write-decoded-region)))
+
+(cond
+ ((fboundp 'q-encoding-ccl-encode-string)
+ (defalias 'q-encoding-encode-string 'q-encoding-ccl-encode-string))
+ (t
+ (defalias 'q-encoding-encode-string 'q-encoding-internal-encode-string)))
+
+(cond
+ ((fboundp 'q-encoding-ccl-decode-string)
+ (defalias 'q-encoding-decode-string 'q-encoding-ccl-decode-string))
+ (t
+ (defalias 'q-encoding-decode-string 'q-encoding-internal-decode-string)))
+
+(cond
+ ((fboundp 'q-encoding-ccl-encoded-length)
+ (defalias 'q-encoding-encoded-length 'q-encoding-ccl-encoded-length))
+ (t
+ (defalias 'q-encoding-encoded-length 'q-encoding-internal-encoded-length)))
+(cond
+ (t
+ (defalias 'uuencode-encode-region 'uuencode-external-encode-region)))
+
+(cond
+ (t
+ (defalias 'uuencode-decode-region 'uuencode-external-decode-region)))
+
+(cond
+ (t
+ (defalias 'uuencode-insert-encoded-file 'uuencode-external-insert-encoded-file)))
+
+(cond
+ (t
+ (defalias 'uuencode-write-decoded-region 'uuencode-external-write-decoded-region)))
+
+(cond
+ (t
+ (defalias 'gzip64-encode-region 'gzip64-external-encode-region)))
+
+(cond
+ (t
+ (defalias 'gzip64-decode-region 'gzip64-external-decode-region)))
+
+(cond
+ (t
+ (defalias 'gzip64-insert-encoded-file 'gzip64-external-insert-encoded-file)))
+
+(cond
+ (t
+ (defalias 'gzip64-write-decoded-region 'gzip64-external-write-decoded-region)))
+
+;;; @ region
+;;;
+
+;;;###autoload
(defvar mime-encoding-method-alist
'(("base64" . base64-encode-region)
("quoted-printable" . quoted-printable-encode-region)
- ("x-uue" . uuencode-encode-region)
- ("x-gzip64" . gzip64-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.")
-;;; @ region
-;;;
-
-(defun mime/encode-region (encoding beg end)
- "Encode region BEG to END of current buffer using ENCODING. [mel.el]"
+;;;###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 (completing-read "encoding: "
+ (list (region-beginning) (region-end)
+ (completing-read "encoding: "
mime-encoding-method-alist
- nil t "base64")
- (region-beginning) (region-end))
+ nil t "base64"))
)
(let ((f (cdr (assoc encoding mime-encoding-method-alist))))
(if f
- (funcall f beg end)
+ (funcall f start end)
)))
-(defun mime/decode-region (encoding beg end)
- "Decode region BEG to END of current buffer using ENCODING. [mel.el]"
+;;;###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 (completing-read "encoding: "
+ (list (region-beginning) (region-end)
+ (completing-read "encoding: "
mime-decoding-method-alist
- nil t "base64")
- (region-beginning) (region-end))
+ nil t "base64"))
)
(let ((f (cdr (assoc encoding mime-decoding-method-alist))))
(if f
- (funcall f beg end)
+ (funcall f start end)
)))
-(defalias 'mime-encode-region 'mime/encode-region)
-(defalias 'mime-decode-region 'mime/decode-region)
+
+;;; @ string
+;;;
+
+;;;###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-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
+(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
+(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
+(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
projects / elisp / flim.git / blobdiff