;;; mime-parse.el --- MIME message parser
-;; Copyright (C) 1994,1995,1996,1997 Free Software Foundation, Inc.
+;; Copyright (C) 1994,1995,1996,1997,1998 Free Software Foundation, Inc.
;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
-;; Version: $Id: mime-parse.el,v 0.14 1997-07-26 15:21:11 morioka Exp $
;; Keywords: parse, MIME, multimedia, mail, news
-;; This file is part of SEMI (SEMI is Emacs MIME Interfaces).
+;; This file is part of SEMI (Spadework for Emacs MIME Interfaces).
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
(defsubst symbol-concat (&rest args)
"Return a symbol whose name is concatenation of arguments ARGS
which are string or symbol."
- (intern (apply (function concat)
- (mapcar (function
- (lambda (s)
- (cond ((symbolp s) (symbol-name s))
- ((stringp s) s)
- )))
- args))))
-
-(defmacro define-structure (name &rest slots)
- (let ((pred (symbol-concat name '-p)))
- (cons 'progn
- (nconc
- (list
- (` (defun (, pred) (obj)
- (and (vectorp obj)
- (eq (elt obj 0) '(, name))
- ))
- )
- (` (defun (, (symbol-concat name '/create)) (, slots)
- (, (cons 'vector (cons (list 'quote name) slots)))
- )
- ))
- (let ((i 1))
- (mapcar (function
- (lambda (slot)
- (prog1
- (` (defun (, (symbol-concat name '/ slot)) (obj)
- (if ((, pred) obj)
- (elt obj (, i))
- ))
- )
- (setq i (+ i 1))
- )
- )) slots)
- )
- (list (list 'quote name))
- ))))
+ (intern (mapconcat (function
+ (lambda (s)
+ (cond ((symbolp s) (symbol-name s))
+ ((stringp s) s)
+ )))
+ args "")))
;;; @ field parser
))))
(defun mime-parse-Content-Type (string)
- "Parse STRING as field-body of Content-Type field."
+ "Parse STRING as field-body of Content-Type field.
+Return value is
+ (PRIMARY-TYPE SUBTYPE (NAME1 . VALUE1)(NAME2 . VALUE2) ...)
+or nil. PRIMARY-TYPE and SUBTYPE are symbol and NAME_n and VALUE_n
+are string."
(setq string (std11-unfold-string string))
- (if (string-match `,(concat "^" mime-media-type/subtype-regexp) string)
- (let* ((e (match-end 0))
- (ctype (downcase (substring string 0 e)))
+ (if (string-match `,(concat "^\\(" mime-token-regexp
+ "\\)/\\(" mime-token-regexp "\\)") string)
+ (let* ((type (downcase
+ (substring string (match-beginning 1) (match-end 1))))
+ (subtype (downcase
+ (substring string (match-beginning 2) (match-end 2))))
ret dest)
- (setq string (substring string e))
+ (setq string (substring string (match-end 0)))
(while (setq ret (mime-parse-parameter string))
(setq dest (cons (car ret) dest)
string (cdr ret))
)
- (cons ctype (nreverse dest))
+ (cons (intern type) (cons (intern subtype) (nreverse dest)))
)))
;;; @ field reader
;;;
-(defun mime/Content-Type ()
+(defun mime-read-Content-Type ()
"Read field-body of Content-Type field from current-buffer,
-and return parsed it. [mime-parse.el]"
+and return parsed it. Format of return value is as same as
+`mime-parse-Content-Type'."
(let ((str (std11-field-body "Content-Type")))
(if str
(mime-parse-Content-Type str)
;;; @ message parser
;;;
-(define-structure mime::content-info
- rcnum point-min point-max type parameters encoding children)
-
-
-(defun mime-parse-multipart (boundary ctype params encoding rcnum)
+(defsubst make-mime-entity-info (rcnum
+ point-min point-max
+ media-type media-subtype parameters
+ encoding children)
+ (vector rcnum point-min point-max
+ media-type media-subtype parameters encoding children))
+
+(defsubst mime-entity-info-rnum (entity-info) (aref entity-info 0))
+(defsubst mime-entity-info-point-min (entity-info) (aref entity-info 1))
+(defsubst mime-entity-info-point-max (entity-info) (aref entity-info 2))
+(defsubst mime-entity-info-media-type (entity-info) (aref entity-info 3))
+(defsubst mime-entity-info-media-subtype (entity-info) (aref entity-info 4))
+(defsubst mime-entity-info-parameters (entity-info) (aref entity-info 5))
+(defsubst mime-entity-info-encoding (entity-info) (aref entity-info 6))
+(defsubst mime-entity-info-children (entity-info) (aref entity-info 7))
+
+(defsubst mime-entity-info-type/subtype (entity-info)
+ (let ((type (mime-entity-info-media-type entity-info)))
+ (if type
+ (let ((subtype (mime-entity-info-media-subtype entity-info)))
+ (if subtype
+ (format "%s/%s" type subtype)
+ (symbol-name type))))))
+
+(defun mime-parse-multipart (boundary primtype subtype params encoding rcnum)
(goto-char (point-min))
(let* ((dash-boundary (concat "--" boundary))
(delimiter (concat "\n" (regexp-quote dash-boundary)))
)))
(rsep (concat delimiter "[ \t]*\n"))
(dc-ctl
- (if (string-equal ctype "multipart/digest")
- '("message/rfc822")
- '("text/plain")
+ (if (eq subtype 'digest)
+ '(message rfc822)
+ '(text plain)
))
cb ce ret ncb children (i 0))
(save-restriction
(setq ret (mime-parse-message dc-ctl "7bit" (cons i rcnum)))
)
(setq children (cons ret children))
- (goto-char (mime::content-info/point-max ret))
+ (goto-char (mime-entity-info-point-max ret))
(goto-char (setq cb ncb))
(setq i (1+ i))
)
)
(setq children (cons ret children))
)
- (mime::content-info/create rcnum beg (point-max)
- ctype params encoding
- (nreverse children))
+ (make-mime-entity-info rcnum beg (point-max)
+ primtype subtype params encoding
+ (nreverse children))
))
-(defun mime-parse-message (&optional ctl encoding rcnum)
- "Parse current-buffer as a MIME message. [mime-parse.el]"
- (setq ctl (or (mime/Content-Type) ctl))
- (setq encoding (or (mime/Content-Transfer-Encoding) encoding))
- (let ((ctype (car ctl))
- (params (cdr ctl))
+(defun mime-parse-message (&optional default-ctl default-encoding rcnum)
+ "Parse current-buffer as a MIME message.
+DEFAULT-CTL is used when an entity does not have valid Content-Type
+field. Its format must be as same as return value of
+mime-{parse|read}-Content-Type."
+ (setq default-ctl (or (mime-read-Content-Type) default-ctl))
+ (let ((primtype (car default-ctl))
+ (subtype (car (cdr default-ctl)))
+ (params (cdr (cdr default-ctl)))
+ (encoding (or (mime/Content-Transfer-Encoding) default-encoding))
)
(let ((boundary (assoc "boundary" params)))
(cond (boundary
(setq boundary (std11-strip-quoted-string (cdr boundary)))
- (mime-parse-multipart boundary ctype params encoding rcnum)
+ (mime-parse-multipart
+ boundary
+ primtype subtype params encoding rcnum)
)
- ((or (string-equal ctype "message/rfc822")
- (string-equal ctype "message/news")
- )
+ ((and (eq primtype 'message)
+ (memq subtype '(rfc822 news))
+ )
(goto-char (point-min))
- (mime::content-info/create rcnum
- (point-min) (point-max)
- ctype params encoding
- (save-restriction
- (narrow-to-region
- (if (re-search-forward "^$" nil t)
- (1+ (match-end 0))
- (point-min)
- )
- (point-max))
- (list (mime-parse-message
- nil nil (cons 0 rcnum)))
- )
- )
+ (make-mime-entity-info rcnum
+ (point-min) (point-max)
+ primtype subtype params encoding
+ (save-restriction
+ (narrow-to-region
+ (if (re-search-forward "^$" nil t)
+ (1+ (match-end 0))
+ (point-min)
+ )
+ (point-max))
+ (list (mime-parse-message
+ nil nil (cons 0 rcnum)))
+ ))
)
(t
- (mime::content-info/create rcnum (point-min) (point-max)
- ctype params encoding nil)
+ (make-mime-entity-info rcnum (point-min) (point-max)
+ primtype subtype params encoding
+ nil)
))
)))
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