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;;; mmgeneric.el --- MIME generic entity module
;; Copyright (C) 1995,96,97,98,99,2000 Free Software Foundation, Inc.
;; Author: MORIOKA Tomohiko <tomo@m17n.org>
;; Keywords: definition, MIME, multimedia, mail, news
;; 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., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Code:
(require 'luna)
(eval-when-compile
(require 'eword-decode) ; mime-find-field-presentation-method
)
;;; @ MIME entity
;;;
(autoload 'mime-entity-content-type "mime")
(autoload 'mime-parse-multipart "mime-parse")
(autoload 'mime-parse-message "mime-parse")
;; (autoload 'mime-parse-encapsulated "mime-parse")
;; (autoload 'mime-parse-external "mime-parse")
(autoload 'mime-entity-content "mime")
(eval-and-compile
(luna-define-class mime-entity ()
(location
content-type children parent
node-id
content-disposition encoding
;; for other fields
original-header parsed-header))
(luna-define-internal-accessors 'mime-entity)
)
(defalias 'mime-entity-representation-type-internal 'luna-class-name)
(defalias 'mime-entity-set-representation-type-internal 'luna-set-class-name)
(luna-define-method mime-entity-fetch-field ((entity mime-entity)
field-name)
(or (symbolp field-name)
(setq field-name (intern (capitalize field-name))))
(cdr (assq field-name
(mime-entity-original-header-internal entity))))
(luna-define-method mime-insert-text-content ((entity mime-entity))
(insert
(decode-mime-charset-string (mime-entity-content entity)
(or (mime-content-type-parameter
(mime-entity-content-type entity)
"charset")
default-mime-charset)
'CRLF)
))
;;; @ for mm-backend
;;;
(defmacro mm-expand-class-name (type)
`(intern (format "mime-%s-entity" ,type)))
(defmacro mm-define-backend (type &optional parents)
`(luna-define-class ,(mm-expand-class-name type)
,(nconc (mapcar (lambda (parent)
(mm-expand-class-name parent)
)
parents)
'(mime-entity))))
(defmacro mm-define-method (name args &rest body)
(or (eq name 'initialize-instance)
(setq name (intern (format "mime-%s" name))))
(let ((spec (car args)))
(setq args
(cons (list (car spec)
(mm-expand-class-name (nth 1 spec)))
(cdr args)))
`(luna-define-method ,name ,args ,@body)
))
(put 'mm-define-method 'lisp-indent-function 'defun)
(def-edebug-spec mm-define-method
(&define name ((arg symbolp)
[&rest arg]
[&optional ["&optional" arg &rest arg]]
&optional ["&rest" arg]
)
def-body))
;;; @ header filter
;;;
;; [tomo] We should think about specification of better filtering
;; mechanism. Please discuss in the emacs-mime mailing lists.
(defun mime-visible-field-p (field-name visible-fields invisible-fields)
(or (catch 'found
(while visible-fields
(let ((regexp (car visible-fields)))
(if (string-match regexp field-name)
(throw 'found t)
))
(setq visible-fields (cdr visible-fields))
))
(catch 'found
(while invisible-fields
(let ((regexp (car invisible-fields)))
(if (string-match regexp field-name)
(throw 'found nil)
))
(setq invisible-fields (cdr invisible-fields))
)
t)))
(defun mime-insert-header-from-buffer (buffer start end
&optional invisible-fields
visible-fields)
(let ((the-buf (current-buffer))
(mode-obj (mime-find-field-presentation-method 'wide))
field-decoder
f-b p f-e field-name len field field-body)
(with-current-buffer buffer
(save-restriction
(narrow-to-region start end)
(goto-char start)
(while (re-search-forward std11-field-head-regexp nil t)
(setq f-b (match-beginning 0)
p (match-end 0)
field-name (buffer-substring f-b p)
len (string-width field-name)
f-e (std11-field-end))
(when (mime-visible-field-p field-name
visible-fields invisible-fields)
(setq field (intern
(capitalize (buffer-substring f-b (1- p))))
field-body (buffer-substring p f-e)
field-decoder (inline (mime-find-field-decoder-internal
field mode-obj)))
(with-current-buffer the-buf
(insert field-name)
(insert (if field-decoder
(funcall field-decoder field-body len)
;; Don't decode
field-body))
(insert "\n")
)))))))
;;; @ end
;;;
(provide 'mmgeneric)
;;; mmgeneric.el ends here
|
