+(defun mime-decode-parameter-value (text charset language)
+ (with-temp-buffer
+ (set-buffer-multibyte nil)
+ (insert text)
+ (goto-char (point-min))
+ (while (re-search-forward "%[0-9A-Fa-f][0-9A-Fa-f]" nil t)
+ (insert (prog1 (string-to-int
+ (buffer-substring (point)(- (point) 2))
+ 16)
+ (delete-region (point)(- (point) 3)))))
+ (setq text (buffer-string))
+ (when charset
+ ;; I believe that `decode-mime-charset-string' of mcs-e20.el should
+ ;; be independent of the value of `enable-multibyte-characters'.
+ (erase-buffer)
+ (set-buffer-multibyte t)
+ (setq text (decode-mime-charset-string text charset)))
+ (when language
+ (put-text-property 0 (length text) 'mime-language language text))
+ text))
+
+(defun mime-decode-parameter-encode-segment (segment)
+ (with-temp-buffer
+ (set-buffer-multibyte nil)
+ (insert segment)
+ (goto-char (point-min))
+ (while (progn
+ (when (looking-at (eval-when-compile
+ (concat mime-attribute-char-regexp "+")))
+ (goto-char (match-end 0)))
+ (not (eobp)))
+ (insert (prog1 (format "%%%02X" (char-int (char-after)))
+ (delete-region (point)(1+ (point))))))
+ (buffer-string)))
+
+(defun mime-decode-parameters (params)
+ "Decode PARAMS as a property list of MIME parameter values.
+Return value is an association list of MIME parameter values.
+If parameter continuation is used, segments of values are concatenated.
+If parameters contain charset information, values are decoded.
+If parameters contain language information, it is set to `mime-language'
+property of the decoded-value."
+ ;; (unless (zerop (% (length params) 2)) ...)
+ (let ((len (/ (length params) 2))
+ dest eparams)
+ (while params
+ (if (and (string-match (eval-when-compile
+ (concat "^\\(" mime-attribute-char-regexp "+\\)"
+ "\\(\\*[0-9]+\\)?" ; continuation
+ "\\(\\*\\)?$")) ; charset/language
+ (car params))
+ (> (match-end 0) (match-end 1)))
+ ;; parameter value extensions are used.
+ (let* ((attribute (downcase
+ (substring (car params) 0 (match-end 1))))
+ (section (if (match-beginning 2)
+ (string-to-int
+ (substring (car params)
+ (1+ (match-beginning 2))
+ (match-end 2)))
+ 0))
+ ;; EPARAM := (ATTRIBUTE VALUES CHARSET LANGUAGE)
+ ;; VALUES := [1*VALUE] ; vector of LEN elements.
+ (eparam (assoc attribute eparams))
+ (value (progn
+ (setq params (cdr params))
+ (car params))))
+ (if eparam
+ (setq eparam (cdr eparam))
+ (setq eparam (list (make-vector len nil) nil nil)
+ eparams (cons (cons attribute eparam) eparams)))
+ ;; if parameter-name ends with "*", it is an extended-parameter.
+ (if (match-beginning 3)
+ (if (zerop section)
+ ;; extended-initial-parameter.
+ (if (string-match (eval-when-compile
+ (concat
+ "^\\(" mime-charset-regexp "\\)?"
+ "'\\(" mime-language-regexp "\\)?"
+ "'\\(\\(" mime-attribute-char-regexp
+ "\\|%[0-9A-Fa-f][0-9A-Fa-f]\\)+\\)$"))
+ value)
+ (progn
+ ;; text
+ (aset (car eparam) 0
+ (substring value (match-beginning 3)))
+ (setq eparam (cdr eparam))
+ ;; charset
+ (when (match-beginning 1)
+ (setcar eparam
+ (downcase
+ (substring value 0 (match-end 1)))))
+ (setq eparam (cdr eparam))
+ ;; language
+ (when (match-beginning 2)
+ (setcar eparam
+ (intern
+ (downcase
+ (substring value
+ (match-beginning 2)
+ (match-end 2)))))))
+ ;; invalid parameter-value.
+ (aset (car eparam) 0
+ (mime-decode-parameter-encode-segment value)))
+ ;; extended-other-parameter.
+ (if (string-match (eval-when-compile
+ (concat
+ "^\\(\\(" mime-attribute-char-regexp
+ "\\|%[0-9A-Fa-f][0-9A-Fa-f]\\)+\\)$"))
+ value)
+ (aset (car eparam) section value)
+ ;; invalid parameter-value.
+ (aset (car eparam) section
+ (mime-decode-parameter-encode-segment value))))
+ ;; regular-parameter. parameter continuation only.
+ (aset (car eparam) section
+ (mime-decode-parameter-encode-segment value))))
+ ;; parameter value extensions are not used,
+ ;; or invalid attribute-name (in RFC2231, although valid in RFC2045).
+ (setq dest (cons (cons (downcase (car params))
+;;; ;; decode (invalid!) encoded-words.
+;;; (eword-decode-string
+;;; (decode-mime-charset-string
+;;; (car (cdr params))
+;;; default-mime-charset)
+;;; 'must-unfold)
+ (car (cdr params)))
+ dest)
+ params (cdr params)))
+ (setq params (cdr params)))
+ ;; concat and decode parameters.
+ (while eparams
+ (setq dest (cons (cons (car (car eparams)) ; attribute
+ (mime-decode-parameter-value
+ (mapconcat (function identity)
+ (nth 1 (car eparams)) ; values
+ "")
+ (nth 2 (car eparams)) ; charset
+ (nth 3 (car eparams)) ; language
+ ))
+ dest)
+ eparams (cdr eparams)))
+ dest))
+
+;;; for compatibility with flim-1_13-rfc2231 API.
+(defalias 'mime-parse-parameters-from-list 'mime-decode-parameters)
+(make-obsolete 'mime-parse-parameters-from-list 'mime-decode-parameters)
+
+(defun mime-parse-parameters (tokens)
+ "Parse TOKENS as MIME parameter values.
+Return a property list, which is a list of the form
+\(PARAMETER-NAME1 VALUE1 PARAMETER-NAME2 VALUE2...)."
+ (let (params attribute)
+ (while (and tokens
+ (eq (car (car tokens)) 'tspecials)
+ (string= (cdr (car tokens)) ";")
+ (setq tokens (cdr tokens))
+ (eq (car (car tokens)) 'mime-token)
+ (progn
+ (setq attribute (cdr (car tokens)))
+ (setq tokens (cdr tokens)))
+ (eq (car (car tokens)) 'tspecials)
+ (string= (cdr (car tokens)) "=")
+ (setq tokens (cdr tokens))
+ (memq (car (car tokens)) '(mime-token quoted-string)))
+ (setq params (cons (if (eq (car (car tokens)) 'quoted-string)
+ (std11-strip-quoted-pair (cdr (car tokens)))
+ (cdr (car tokens)))
+ (cons attribute params))
+ tokens (cdr tokens)))
+ (nreverse params)))
+
+
+;;; @@ Content-Type