;;; mime-def.el --- definition module about MIME -*- coding: iso-8859-4; -*-
-;; Copyright (C) 1995,96,97,98,99,2000 Free Software Foundation, Inc.
+;; Copyright (C) 1995,96,97,98,99,2000,2001,2002,2003
+;; Free Software Foundation, Inc.
;; Author: MORIOKA Tomohiko <tomo@m17n.org>
+;; Shuhei KOBAYASHI <shuhei@aqua.ocn.ne.jp>
;; Keywords: definition, MIME, multimedia, mail, news
;; This file is part of FLIM (Faithful Library about Internet Message).
;;; Code:
-(require 'poe)
-(require 'poem)
-(require 'pcustom)
+(require 'custom)
(require 'mcharset)
(require 'alist)
-(eval-when-compile
- (require 'cl) ; list*
- (require 'luna) ; luna-arglist-to-arguments
- )
+(eval-when-compile (require 'luna)) ; luna-arglist-to-arguments
(eval-and-compile
- (defconst mime-library-product ["FLIM" (1 14 0) "Ninokuchi"]
+ (defconst mime-library-product ["FLIM" (1 14 6) "Marutamachi"]
"Product name, version number and code name of MIME-library package."))
(defmacro mime-product-name (product)
;;; @ variables
;;;
-(require 'custom)
-
(defgroup mime '((default-mime-charset custom-variable))
"Emacs MIME Interfaces"
:group 'news
:type '(repeat string))
+;;; @@ for encoded-word
+;;;
+
+(defgroup mime-header nil
+ "Header representation, specially encoded-word"
+ :group 'mime)
+
+;;; @@@ decoding
+;;;
+
+(defcustom mime-field-decoding-max-size 1000
+ "*Max size to decode header field."
+ :group 'mime-header
+ :type '(choice (integer :tag "Limit (bytes)")
+ (const :tag "Don't limit" nil)))
+
+(defcustom mime-header-accept-quoted-encoded-words nil
+ "*Accept encoded-words in quoted-strings."
+ :group 'mime-header
+ :type 'boolean)
+
+
+;;; @@@ encoding
+;;;
+
+(defcustom mime-field-encoding-method-alist
+ '(("X-Nsubject" . iso-2022-jp-2)
+ ("Newsgroups" . nil)
+ ("Message-ID" . nil)
+ (t . mime)
+ )
+ "*Alist to specify field encoding method.
+Its key is field-name, value is encoding method.
+
+If method is `mime', this field will be encoded into MIME format.
+
+If method is a MIME-charset, this field will be encoded as the charset
+when it must be convert into network-code.
+
+If method is `default-mime-charset', this field will be encoded as
+variable `default-mime-charset' when it must be convert into
+network-code.
+
+If method is nil, this field will not be encoded."
+ :group 'mime-header
+ :type '(repeat (cons (choice :tag "Field"
+ (string :tag "Name")
+ (const :tag "Default" t))
+ (choice :tag "Method"
+ (const :tag "MIME conversion" mime)
+ (symbol :tag "non-MIME conversion")
+ (const :tag "no-conversion" nil)))))
+
+
;;; @ required functions
;;;
(defsubst regexp-or (&rest args)
(concat "\\(" (mapconcat (function identity) args "\\|") "\\)"))
-
-;;; @ about STD 11
-;;;
-
-(eval-and-compile
- (defconst std11-quoted-pair-regexp "\\\\.")
- (defconst std11-non-qtext-char-list '(?\" ?\\ ?\r ?\n))
- (defconst std11-qtext-regexp
- (eval-when-compile
- (concat "[^" std11-non-qtext-char-list "]"))))
-(defconst std11-quoted-string-regexp
- (eval-when-compile
- (concat "\""
- (regexp-*
- (regexp-or std11-qtext-regexp std11-quoted-pair-regexp))
- "\"")))
+(or (fboundp 'char-int)
+ (defalias 'char-int 'identity))
-;;; @ about MIME
+;;; @ MIME constants
;;;
-(eval-and-compile
- (defconst mime-tspecial-char-list
- '(?\] ?\[ ?\( ?\) ?< ?> ?@ ?, ?\; ?: ?\\ ?\" ?/ ?? ?=)))
+(defconst mime-tspecial-char-list
+ '(?\] ?\[ ?\( ?\) ?< ?> ?@ ?, ?\; ?: ?\\ ?\" ?/ ?? ?=))
(defconst mime-token-regexp
- (eval-when-compile
- (concat "[^" mime-tspecial-char-list "\000-\040]+")))
-(defconst mime-charset-regexp mime-token-regexp)
+ (concat "[^" mime-tspecial-char-list "\000-\040]+"))
+(defconst mime-attribute-char-regexp
+ (concat "[^" mime-tspecial-char-list "\000-\040"
+ "*'%" ; introduced in RFC 2231.
+ "]"))
+
+(defconst mime-charset-regexp
+ (concat "[^" mime-tspecial-char-list "\000-\040"
+ "*'%" ; should not include "%"?
+ "]+"))
+
+;; More precisely, length of "[A-Za-z]+" is limited to at most 8.
+;; (defconst mime-language-regexp "[A-Za-z]+\\(-[A-Za-z]+\\)*")
+(defconst mime-language-regexp "[-A-Za-z]+")
-(defconst mime-media-type/subtype-regexp
- (concat mime-token-regexp "/" mime-token-regexp))
+(defconst mime-encoding-regexp mime-token-regexp)
;;; @@ base64 / B
;;;
(defsubst make-mime-content-type (type subtype &optional parameters)
- (list* (cons 'type type)
- (cons 'subtype subtype)
- (nreverse parameters))
- )
+ (cons (cons 'type type)
+ (cons (cons 'subtype subtype)
+ parameters)))
(defsubst mime-content-type-primary-type (content-type)
"Return primary-type of CONTENT-TYPE."
(cdr (car content-type)))
(defsubst mime-content-type-subtype (content-type)
- "Return primary-type of CONTENT-TYPE."
- (cdr (cadr content-type)))
+ "Return subtype of CONTENT-TYPE."
+ (cdr (car (cdr content-type))))
(defsubst mime-content-type-parameters (content-type)
- "Return primary-type of CONTENT-TYPE."
- (cddr content-type))
+ "Return parameters of CONTENT-TYPE."
+ (cdr (cdr content-type)))
(defsubst mime-content-type-parameter (content-type parameter)
"Return PARAMETER value of CONTENT-TYPE."
- (cdr (assoc parameter (mime-content-type-parameters content-type))))
+ (cdr (assoc parameter (cdr (cdr content-type)))))
(defsubst mime-type/subtype-string (type &optional subtype)
;;; @ Content-Disposition
;;;
+(defsubst make-mime-content-disposition (type &optional parameters)
+ (cons (cons 'type type)
+ parameters))
+
(defsubst mime-content-disposition-type (content-disposition)
"Return disposition-type of CONTENT-DISPOSITION."
(cdr (car content-disposition)))