+;;; mel.el : a MIME encoding/decoding library
+
+;; Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
+
+;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
+;; Created: 1995/6/25
+;; Keywords: MIME, Base64, Quoted-Printable, uuencode, gzip64
+
+;; This file is part of FLIM (Faithful Library about Internet Message).
+
+;; 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 'mime-def)
+(require 'poem)
+
+(defcustom mime-encoding-list
+ '("7bit" "8bit" "binary" "base64" "quoted-printable")
+ "List of Content-Transfer-Encoding. Each encoding must be string."
+ :group 'mime
+ :type '(repeat string))
+
+(defun mime-encoding-list (&optional service)
+ "Return list of Content-Transfer-Encoding.
+If SERVICE is specified, it returns available list of
+Content-Transfer-Encoding for it."
+ (if service
+ (let (dest)
+ (mapatoms (lambda (sym)
+ (or (eq sym nil)
+ (setq dest (cons (symbol-name sym) dest)))
+ )
+ (symbol-value (intern (format "%s-obarray" service))))
+ (let ((rest mel-encoding-module-alist)
+ pair)
+ (while (setq pair (car rest))
+ (let ((key (car pair)))
+ (or (member key dest)
+ (<= (length key) 1)
+ (setq dest (cons key dest))))
+ (setq rest (cdr rest)))
+ )
+ dest)
+ mime-encoding-list))
+
+(defun mime-encoding-alist (&optional service)
+ "Return table of Content-Transfer-Encoding for completion."
+ (mapcar #'list (mime-encoding-list service))
+ )
+
+(defsubst mel-use-module (name encodings)
+ (let (encoding)
+ (while (setq encoding (car encodings))
+ (set-alist 'mel-encoding-module-alist
+ encoding
+ (cons name (cdr (assoc encoding mel-encoding-module-alist))))
+ (setq encodings (cdr encodings))
+ )))
+
+(defsubst mel-find-function (service encoding)
+ (mel-find-function-from-obarray
+ (symbol-value (intern (format "%s-obarray" service))) encoding))
+
+
+;;; @ setting for modules