;;; mml.el --- A package for parsing and validating MML documents
-;; Copyright (C) 1998 Free Software Foundation, Inc.
+;; Copyright (C) 1998,99 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; This file is part of GNU Emacs.
;;; Code:
+(require 'mm-util)
+(require 'mm-bodies)
+(require 'mm-encode)
+(require 'mm-decode)
+
+(eval-and-compile
+ (autoload 'message-make-message-id "message"))
+
+(defvar mml-generate-multipart-alist
+ '(("signed" . rfc2015-generate-signed-multipart)
+ ("encrypted" . rfc2015-generate-encrypted-multipart))
+ "*Alist of multipart generation functions.
+
+Each entry has the form (NAME . FUNCTION), where
+NAME: is a string containing the name of the part (without the
+leading \"/multipart/\"),
+FUNCTION: is a Lisp function which is called to generate the part.
+
+The Lisp function has to supply the appropriate MIME headers and the
+contents of this part.")
+
(defvar mml-syntax-table
(let ((table (copy-syntax-table emacs-lisp-mode-syntax-table)))
(modify-syntax-entry ?\\ "/" table)
(set-syntax-table mml-syntax-table)
(mml-parse-1))
(set-syntax-table table))))
-
+
(defun mml-parse-1 ()
"Parse the current buffer as an MML document."
- (let (struct)
+ (let (struct tag point contents charsets warn)
(while (and (not (eobp))
- (not (looking-at "</#multipart")))
+ (not (looking-at "<#/multipart")))
(cond
((looking-at "<#multipart")
(push (nconc (mml-read-tag) (mml-parse-1)) struct))
- ((looking-at "<#part")
+ ((looking-at "<#external")
(push (nconc (mml-read-tag) (list (cons 'contents (mml-read-part))))
struct))
(t
- (push (list 'part '(type . "text/plain")
- (cons 'contents (mml-read-part))) struct))))
+ (if (looking-at "<#part")
+ (setq tag (mml-read-tag))
+ (setq tag (list 'part '(type . "text/plain"))
+ warn t))
+ (setq point (point)
+ contents (mml-read-part)
+ charsets (mm-find-mime-charset-region point (point)))
+ (if (< (length charsets) 2)
+ (push (nconc tag (list (cons 'contents contents)))
+ struct)
+ (let ((nstruct (mml-parse-singlepart-with-multiple-charsets
+ tag point (point))))
+ (when (and warn
+ (not
+ (y-or-n-p
+ (format
+ "Warning: Your message contains %d parts. Really send? "
+ (length nstruct)))))
+ (error "Edit your message to use only one charset"))
+ (setq struct (nconc nstruct struct)))))))
(unless (eobp)
(forward-line 1))
(nreverse struct)))
+(defun mml-parse-singlepart-with-multiple-charsets (orig-tag beg end)
+ (save-excursion
+ (narrow-to-region beg end)
+ (goto-char (point-min))
+ (let ((current (mm-mime-charset (char-charset (following-char))))
+ charset struct space newline paragraph)
+ (while (not (eobp))
+ (cond
+ ;; The charset remains the same.
+ ((or (eq (setq charset (mm-mime-charset
+ (char-charset (following-char)))) 'us-ascii)
+ (eq charset current)))
+ ;; The initial charset was ascii.
+ ((eq current 'us-ascii)
+ (setq current charset
+ space nil
+ newline nil
+ paragraph nil))
+ ;; We have a change in charsets.
+ (t
+ (push (append
+ orig-tag
+ (list (cons 'contents
+ (buffer-substring-no-properties
+ beg (or paragraph newline space (point))))))
+ struct)
+ (setq beg (or paragraph newline space (point))
+ current charset
+ space nil
+ newline nil
+ paragraph nil)))
+ ;; Compute places where it might be nice to break the part.
+ (cond
+ ((memq (following-char) '(? ?\t))
+ (setq space (1+ (point))))
+ ((eq (following-char) ?\n)
+ (setq newline (1+ (point))))
+ ((and (eq (following-char) ?\n)
+ (not (bobp))
+ (eq (char-after (1- (point))) ?\n))
+ (setq paragraph (point))))
+ (forward-char 1))
+ ;; Do the final part.
+ (unless (= beg (point))
+ (push (append orig-tag
+ (list (cons 'contents
+ (buffer-substring-no-properties
+ beg (point)))))
+ struct))
+ struct)))
+
(defun mml-read-tag ()
"Read a tag and return the contents."
(let (contents name elem val)
(forward-char 2)
- (setq name (buffer-substring (point) (progn (forward-sexp 1) (point))))
+ (setq name (buffer-substring-no-properties
+ (point) (progn (forward-sexp 1) (point))))
(skip-chars-forward " \t\n")
(while (not (looking-at ">"))
- (setq elem (buffer-substring (point) (progn (forward-sexp 1) (point))))
+ (setq elem (buffer-substring-no-properties
+ (point) (progn (forward-sexp 1) (point))))
(skip-chars-forward "= \t\n")
- (setq val (buffer-substring (point) (progn (forward-sexp 1) (point))))
+ (setq val (buffer-substring-no-properties
+ (point) (progn (forward-sexp 1) (point))))
(when (string-match "^\"\\(.*\\)\"$" val)
(setq val (match-string 1 val)))
(push (cons (intern elem) val) contents)
(skip-chars-forward " \t\n"))
(forward-char 1)
+ (skip-chars-forward " \t\n")
(cons (intern name) (nreverse contents))))
(defun mml-read-part ()
;; If the tag ended at the end of the line, we go to the next line.
(when (looking-at "[ \t]*\n")
(forward-line 1))
- (if (re-search-forward "<#/?\\(multi\\)?part." nil t)
+ (if (re-search-forward
+ "<#\\(/\\)?\\(multipart\\|part\\|external\\)." nil t)
(prog1
- (buffer-substring beg (match-beginning 0))
- (if (not (equal (match-string 0) "<#/part>"))
+ (buffer-substring-no-properties beg (match-beginning 0))
+ (if (or (not (match-beginning 1))
+ (equal (match-string 2) "multipart"))
(goto-char (match-beginning 0))
(when (looking-at "[ \t]*\n")
(forward-line 1))))
- (buffer-substring beg (goto-char (point-max))))))
+ (buffer-substring-no-properties beg (goto-char (point-max))))))
(defvar mml-boundary nil)
+(defvar mml-base-boundary "-=-=")
+(defvar mml-multipart-number 0)
(defun mml-generate-mime ()
"Generate a MIME message based on the current MML document."
- (setq mml-boundary "=-=-=")
- (let ((cont (mml-parse)))
- (with-temp-buffer
- (if (and (consp (car cont))
- (= (length cont) 1))
- (mml-generate-mime-1 (car cont))
- (mml-generate-mime-1 (nconc (list 'multipart '(type . "mixed"))
- cont)))
- (buffer-string))))
+ (let ((cont (mml-parse))
+ (mml-multipart-number 0))
+ (if (not cont)
+ nil
+ (with-temp-buffer
+ (if (and (consp (car cont))
+ (= (length cont) 1))
+ (mml-generate-mime-1 (car cont))
+ (mml-generate-mime-1 (nconc (list 'multipart '(type . "mixed"))
+ cont)))
+ (buffer-string)))))
(defun mml-generate-mime-1 (cont)
(cond
((eq (car cont) 'part)
(let (coded encoding charset filename type)
(setq type (or (cdr (assq 'type cont)) "text/plain"))
- (if (equal (car (split-string type "/")) "text")
+ (if (member (car (split-string type "/")) '("text" "message"))
(with-temp-buffer
- (if (setq filename (cdr (assq 'filename cont)))
- (insert-file-contents-literally filename)
+ (cond
+ ((cdr (assq 'buffer cont))
+ (insert-buffer-substring (cdr (assq 'buffer cont))))
+ ((and (setq filename (cdr (assq 'filename cont)))
+ (not (equal (cdr (assq 'nofile cont)) "yes")))
+ (mm-insert-file-contents filename))
+ (t
(save-restriction
(narrow-to-region (point) (point))
(insert (cdr (assq 'contents cont)))
;; Remove quotes from quoted tags.
(goto-char (point-min))
- (while (re-search-forward "<#!+\\(part\\|multipart\\)" nil t)
+ (while (re-search-forward
+ "<#!+/?\\(part\\|multipart\\|external\\)" nil t)
(delete-region (+ (match-beginning 0) 2)
- (+ (match-beginning 0) 3)))))
- (setq charset (mm-encode-body)
- encoding (mm-body-encoding))
+ (+ (match-beginning 0) 3))))))
+ (setq charset (mm-encode-body))
+ (setq encoding (mm-body-encoding charset))
(setq coded (buffer-string)))
(mm-with-unibyte-buffer
- (if (setq filename (cdr (assq 'filename cont)))
- (insert-file-contents-literally filename)
- (insert (cdr (assq 'contents cont))))
- (setq coded (buffer-string))))
- (when (or charset
- (not (equal type "text/plain")))
- (insert "Content-Type: " type)
- (when charset
- (insert (format "; charset=\"%s\"" charset)))
- (insert "\n"))
- (unless (eq encoding '7bit)
- (insert (format "Content-Transfer-Encoding: %s\n" encoding)))
+ (cond
+ ((cdr (assq 'buffer cont))
+ (insert-buffer-substring (cdr (assq 'buffer cont))))
+ ((and (setq filename (cdr (assq 'filename cont)))
+ (not (equal (cdr (assq 'nofile cont)) "yes")))
+ (mm-insert-file-contents filename nil nil nil nil t))
+ (t
+ (insert (cdr (assq 'contents cont)))))
+ (setq encoding (mm-encode-buffer type)
+ coded (buffer-string))))
+ (mml-insert-mime-headers cont type charset encoding)
(insert "\n")
(insert coded)))
+ ((eq (car cont) 'external)
+ (insert "Content-Type: message/external-body")
+ (let ((parameters (mml-parameter-string
+ cont '(expiration size permission)))
+ (name (cdr (assq 'name cont))))
+ (when name
+ (setq name (mml-parse-file-name name))
+ (if (stringp name)
+ (mml-insert-parameter
+ (mail-header-encode-parameter "name" name)
+ "access-type=local-file")
+ (mml-insert-parameter
+ (mail-header-encode-parameter
+ "name" (file-name-nondirectory (nth 2 name)))
+ (mail-header-encode-parameter "site" (nth 1 name))
+ (mail-header-encode-parameter
+ "directory" (file-name-directory (nth 2 name))))
+ (mml-insert-parameter
+ (concat "access-type="
+ (if (member (nth 0 name) '("ftp@" "anonymous@"))
+ "anon-ftp"
+ "ftp")))))
+ (when parameters
+ (mml-insert-parameter-string
+ cont '(expiration size permission))))
+ (insert "\n\n")
+ (insert "Content-Type: " (cdr (assq 'type cont)) "\n")
+ (insert "Content-ID: " (message-make-message-id) "\n")
+ (insert "Content-Transfer-Encoding: "
+ (or (cdr (assq 'encoding cont)) "binary"))
+ (insert "\n\n")
+ (insert (or (cdr (assq 'contents cont))))
+ (insert "\n"))
((eq (car cont) 'multipart)
- (let ((mml-boundary (concat "=" mml-boundary)))
- (insert (format "Content-Type: multipart/%s; boundary=\"%s\"\n"
- (or (cdr (assq 'type cont)) "mixed")
- mml-boundary))
- (insert "\n")
- (setq cont (cddr cont))
- (while cont
- (unless (bolp)
- (insert "\n"))
- (insert "--" mml-boundary "\n")
- (mml-generate-mime-1 (pop cont)))
- (unless (bolp)
- (insert "\n"))
- (insert "--" mml-boundary "--\n")))
+ (let* ((type (or (cdr (assq 'type cont)) "mixed"))
+ (handler (assoc type mml-generate-multipart-alist)))
+ (if handler
+ (funcall (cdr handler) cont)
+ ;; No specific handler. Use default one.
+ (let ((mml-boundary (mml-compute-boundary cont)))
+ (insert (format "Content-Type: multipart/%s; boundary=\"%s\"\n"
+ type mml-boundary))
+ (insert "\n")
+ (setq cont (cddr cont))
+ (while cont
+ (insert "\n--" mml-boundary "\n")
+ (mml-generate-mime-1 (pop cont)))
+ (insert "\n--" mml-boundary "--\n")))))
(t
(error "Invalid element: %S" cont))))
+(defun mml-compute-boundary (cont)
+ "Return a unique boundary that does not exist in CONT."
+ (let ((mml-boundary (mml-make-boundary)))
+ ;; This function tries again and again until it has found
+ ;; a unique boundary.
+ (while (not (catch 'not-unique
+ (mml-compute-boundary-1 cont))))
+ mml-boundary))
+
+(defun mml-compute-boundary-1 (cont)
+ (let (filename)
+ (cond
+ ((eq (car cont) 'part)
+ (with-temp-buffer
+ (cond
+ ((cdr (assq 'buffer cont))
+ (insert-buffer-substring (cdr (assq 'buffer cont))))
+ ((and (setq filename (cdr (assq 'filename cont)))
+ (not (equal (cdr (assq 'nofile cont)) "yes")))
+ (mm-insert-file-contents filename))
+ (t
+ (insert (cdr (assq 'contents cont)))))
+ (goto-char (point-min))
+ (when (re-search-forward (concat "^--" (regexp-quote mml-boundary))
+ nil t)
+ (setq mml-boundary (mml-make-boundary))
+ (throw 'not-unique nil))))
+ ((eq (car cont) 'multipart)
+ (mapcar 'mml-compute-boundary-1 (cddr cont))))
+ t))
+
+(defun mml-make-boundary ()
+ (concat (make-string (% (incf mml-multipart-number) 60) ?=)
+ (if (> mml-multipart-number 17)
+ (format "%x" mml-multipart-number)
+ "")
+ mml-base-boundary))
+
+(defun mml-make-string (num string)
+ (let ((out ""))
+ (while (not (zerop (decf num)))
+ (setq out (concat out string)))
+ out))
+
+(defun mml-insert-mime-headers (cont type charset encoding)
+ (let (parameters disposition description)
+ (setq parameters
+ (mml-parameter-string
+ cont '(name access-type expiration size permission)))
+ (when (or charset
+ parameters
+ (not (equal type "text/plain")))
+ (when (consp charset)
+ (error
+ "Can't encode a part with several charsets."))
+ (insert "Content-Type: " type)
+ (when charset
+ (insert "; " (mail-header-encode-parameter
+ "charset" (symbol-name charset))))
+ (when parameters
+ (mml-insert-parameter-string
+ cont '(name access-type expiration size permission)))
+ (insert "\n"))
+ (setq parameters
+ (mml-parameter-string
+ cont '(filename creation-date modification-date read-date)))
+ (when (or (setq disposition (cdr (assq 'disposition cont)))
+ parameters)
+ (insert "Content-Disposition: " (or disposition "inline"))
+ (when parameters
+ (mml-insert-parameter-string
+ cont '(filename creation-date modification-date read-date)))
+ (insert "\n"))
+ (unless (eq encoding '7bit)
+ (insert (format "Content-Transfer-Encoding: %s\n" encoding)))
+ (when (setq description (cdr (assq 'description cont)))
+ (insert "Content-Description: "
+ (mail-encode-encoded-word-string description) "\n"))))
+
+(defun mml-parameter-string (cont types)
+ (let ((string "")
+ value type)
+ (while (setq type (pop types))
+ (when (setq value (cdr (assq type cont)))
+ ;; Strip directory component from the filename parameter.
+ (when (eq type 'filename)
+ (setq value (file-name-nondirectory value)))
+ (setq string (concat string "; "
+ (mail-header-encode-parameter
+ (symbol-name type) value)))))
+ (when (not (zerop (length string)))
+ string)))
+
+(defun mml-insert-parameter-string (cont types)
+ (let (value type)
+ (while (setq type (pop types))
+ (when (setq value (cdr (assq type cont)))
+ ;; Strip directory component from the filename parameter.
+ (when (eq type 'filename)
+ (setq value (file-name-nondirectory value)))
+ (mml-insert-parameter
+ (mail-header-encode-parameter
+ (symbol-name type) value))))))
+
+(defvar ange-ftp-path-format)
+(defvar efs-path-regexp)
+(defun mml-parse-file-name (path)
+ (if (if (boundp 'efs-path-regexp)
+ (string-match efs-path-regexp path)
+ (if (boundp 'ange-ftp-path-format)
+ (string-match (car ange-ftp-path-format))))
+ (list (match-string 1 path) (match-string 2 path)
+ (substring path (1+ (match-end 2))))
+ path))
+
+(defun mml-insert-buffer (buffer)
+ "Insert BUFFER at point and quote any MML markup."
+ (save-restriction
+ (narrow-to-region (point) (point))
+ (insert-buffer-substring buffer)
+ (mml-quote-region (point-min) (point-max))
+ (goto-char (point-max))))
+
+;;;
+;;; Transforming MIME to MML
+;;;
+
+(defun mime-to-mml ()
+ "Translate the current buffer (which should be a message) into MML."
+ ;; First decode the head.
+ (save-restriction
+ (message-narrow-to-head)
+ (mail-decode-encoded-word-region (point-min) (point-max)))
+ (let ((handles (mm-dissect-buffer t)))
+ (goto-char (point-min))
+ (search-forward "\n\n" nil t)
+ (delete-region (point) (point-max))
+ (if (stringp (car handles))
+ (mml-insert-mime handles)
+ (mml-insert-mime handles t))
+ (mm-destroy-parts handles)))
+
+(defun mml-to-mime ()
+ "Translate the current buffer from MML to MIME."
+ (message-encode-message-body)
+ (save-restriction
+ (message-narrow-to-headers-or-head)
+ (mail-encode-encoded-word-buffer)))
+
+(defun mml-insert-mime (handle &optional no-markup)
+ (let (textp buffer)
+ ;; Determine type and stuff.
+ (unless (stringp (car handle))
+ (unless (setq textp (equal (mm-handle-media-supertype handle)
+ "text"))
+ (save-excursion
+ (set-buffer (setq buffer (generate-new-buffer " *mml*")))
+ (mm-insert-part handle))))
+ (unless no-markup
+ (mml-insert-mml-markup handle buffer textp))
+ (cond
+ ((stringp (car handle))
+ (mapcar 'mml-insert-mime (cdr handle))
+ (insert "<#/multipart>\n"))
+ (textp
+ (let ((text (mm-get-part handle))
+ (charset (mail-content-type-get
+ (mm-handle-type handle) 'charset)))
+ (insert (mm-decode-string text charset)))
+ (goto-char (point-max)))
+ (t
+ (insert "<#/part>\n")))))
+
+(defun mml-insert-mml-markup (handle &optional buffer nofile)
+ "Take a MIME handle and insert an MML tag."
+ (if (stringp (car handle))
+ (insert "<#multipart type=" (mm-handle-media-subtype handle)
+ ">\n")
+ (insert "<#part type=" (mm-handle-media-type handle))
+ (dolist (elem (append (cdr (mm-handle-type handle))
+ (cdr (mm-handle-disposition handle))))
+ (insert " " (symbol-name (car elem)) "=\"" (cdr elem) "\""))
+ (when (mm-handle-disposition handle)
+ (insert " disposition=" (car (mm-handle-disposition handle))))
+ (when buffer
+ (insert " buffer=\"" (buffer-name buffer) "\""))
+ (when nofile
+ (insert " nofile=yes"))
+ (when (mm-handle-description handle)
+ (insert " description=\"" (mm-handle-description handle) "\""))
+ (insert ">\n")))
+
+(defun mml-insert-parameter (&rest parameters)
+ "Insert PARAMETERS in a nice way."
+ (dolist (param parameters)
+ (insert ";")
+ (let ((point (point)))
+ (insert " " param)
+ (when (> (current-column) 71)
+ (goto-char point)
+ (insert "\n ")
+ (end-of-line)))))
+
+;;;
+;;; Mode for inserting and editing MML forms
+;;;
+
+(defvar mml-mode-map
+ (let ((map (make-sparse-keymap))
+ (main (make-sparse-keymap)))
+ (define-key map "f" 'mml-attach-file)
+ (define-key map "b" 'mml-attach-buffer)
+ (define-key map "e" 'mml-attach-external)
+ (define-key map "q" 'mml-quote-region)
+ (define-key map "m" 'mml-insert-multipart)
+ (define-key map "p" 'mml-insert-part)
+ (define-key map "v" 'mml-validate)
+ (define-key map "P" 'mml-preview)
+ (define-key map "n" 'mml-narrow-to-part)
+ (define-key main "\M-m" map)
+ main))
+
+(easy-menu-define
+ mml-menu mml-mode-map ""
+ '("MML"
+ ("Attach"
+ ["File" mml-attach-file t]
+ ["Buffer" mml-attach-buffer t]
+ ["External" mml-attach-external t])
+ ("Insert"
+ ["Multipart" mml-insert-multipart t]
+ ["Part" mml-insert-part t])
+ ["Narrow" mml-narrow-to-part t]
+ ["Quote" mml-quote-region t]
+ ["Validate" mml-validate t]
+ ["Preview" mml-preview t]))
+
+(defvar mml-mode nil
+ "Minor mode for editing MML.")
+
+(defun mml-mode (&optional arg)
+ "Minor mode for editing MML.
+
+\\{mml-mode-map}"
+ (interactive "P")
+ (if (not (set (make-local-variable 'mml-mode)
+ (if (null arg) (not mml-mode)
+ (> (prefix-numeric-value arg) 0))))
+ nil
+ (set (make-local-variable 'mml-mode) t)
+ (unless (assq 'mml-mode minor-mode-alist)
+ (push `(mml-mode " MML") minor-mode-alist))
+ (unless (assq 'mml-mode minor-mode-map-alist)
+ (push (cons 'mml-mode mml-mode-map)
+ minor-mode-map-alist)))
+ (run-hooks 'mml-mode-hook))
+
+;;;
+;;; Helper functions for reading MIME stuff from the minibuffer and
+;;; inserting stuff to the buffer.
+;;;
+
+(defun mml-minibuffer-read-file (prompt)
+ (let ((file (read-file-name prompt nil nil t)))
+ ;; Prevent some common errors. This is inspired by similar code in
+ ;; VM.
+ (when (file-directory-p file)
+ (error "%s is a directory, cannot attach" file))
+ (unless (file-exists-p file)
+ (error "No such file: %s" file))
+ (unless (file-readable-p file)
+ (error "Permission denied: %s" file))
+ file))
+
+(defun mml-minibuffer-read-type (name &optional default)
+ (let* ((default (or default
+ (mm-default-file-encoding name)
+ ;; Perhaps here we should check what the file
+ ;; looks like, and offer text/plain if it looks
+ ;; like text/plain.
+ "application/octet-stream"))
+ (string (completing-read
+ (format "Content type (default %s): " default)
+ (mapcar
+ 'list
+ (delete-duplicates
+ (nconc
+ (mapcar (lambda (m) (cdr m))
+ mailcap-mime-extensions)
+ (apply
+ 'nconc
+ (mapcar
+ (lambda (l)
+ (delq nil
+ (mapcar
+ (lambda (m)
+ (let ((type (cdr (assq 'type (cdr m)))))
+ (if (equal (cadr (split-string type "/"))
+ "*")
+ nil
+ type)))
+ (cdr l))))
+ mailcap-mime-data)))
+ :test 'equal)))))
+ (if (not (equal string ""))
+ string
+ default)))
+
+(defun mml-minibuffer-read-description ()
+ (let ((description (read-string "One line description: ")))
+ (when (string-match "\\`[ \t]*\\'" description)
+ (setq description nil))
+ description))
+
+(defun mml-quote-region (beg end)
+ "Quote the MML tags in the region."
+ (interactive "r")
+ (save-excursion
+ (save-restriction
+ ;; Temporarily narrow the region to defend from changes
+ ;; invalidating END.
+ (narrow-to-region beg end)
+ (goto-char (point-min))
+ ;; Quote parts.
+ (while (re-search-forward
+ "<#/?!*\\(multipart\\|part\\|external\\)" nil t)
+ (goto-char (match-beginning 1))
+ (insert "!")))))
+
+(defun mml-insert-tag (name &rest plist)
+ "Insert an MML tag described by NAME and PLIST."
+ (when (symbolp name)
+ (setq name (symbol-name name)))
+ (insert "<#" name)
+ (while plist
+ (let ((key (pop plist))
+ (value (pop plist)))
+ (when value
+ ;; Quote VALUE if it contains suspicious characters.
+ (when (string-match "[\"\\~/* \t\n]" value)
+ (setq value (prin1-to-string value)))
+ (insert (format " %s=%s" key value)))))
+ (insert ">\n<#/" name ">\n"))
+
+;;; Attachment functions.
+
+(defun mml-attach-file (file &optional type description)
+ "Attach a file to the outgoing MIME message.
+The file is not inserted or encoded until you send the message with
+`\\[message-send-and-exit]' or `\\[message-send]'.
+
+FILE is the name of the file to attach. TYPE is its content-type, a
+string of the form \"type/subtype\". DESCRIPTION is a one-line
+description of the attachment."
+ (interactive
+ (let* ((file (mml-minibuffer-read-file "Attach file: "))
+ (type (mml-minibuffer-read-type file))
+ (description (mml-minibuffer-read-description)))
+ (list file type description)))
+ (mml-insert-tag 'part 'type type 'filename file 'disposition "attachment"
+ 'description description))
+
+(defun mml-attach-buffer (buffer &optional type description)
+ "Attach a buffer to the outgoing MIME message.
+See `mml-attach-file' for details of operation."
+ (interactive
+ (let* ((buffer (read-buffer "Attach buffer: "))
+ (type (mml-minibuffer-read-type buffer "text/plain"))
+ (description (mml-minibuffer-read-description)))
+ (list buffer type description)))
+ (mml-insert-tag 'part 'type type 'buffer buffer 'disposition "attachment"
+ 'description description))
+
+(defun mml-attach-external (file &optional type description)
+ "Attach an external file into the buffer.
+FILE is an ange-ftp/efs specification of the part location.
+TYPE is the MIME type to use."
+ (interactive
+ (let* ((file (mml-minibuffer-read-file "Attach external file: "))
+ (type (mml-minibuffer-read-type file))
+ (description (mml-minibuffer-read-description)))
+ (list file type description)))
+ (mml-insert-tag 'external 'type type 'name file 'disposition "attachment"
+ 'description description))
+
+(defun mml-insert-multipart (&optional type)
+ (interactive (list (completing-read "Multipart type (default mixed): "
+ '(("mixed") ("alternative") ("digest") ("parallel")
+ ("signed") ("encrypted"))
+ nil nil "mixed")))
+ (or type
+ (setq type "mixed"))
+ (mml-insert-tag "multipart" 'type type)
+ (forward-line -1))
+
+(defun mml-preview (&optional raw)
+ "Display current buffer with Gnus, in a new buffer.
+If RAW, don't highlight the article."
+ (interactive "P")
+ (let ((buf (current-buffer)))
+ (switch-to-buffer (get-buffer-create
+ (concat (if raw "*Raw MIME preview of "
+ "*MIME preview of ") (buffer-name))))
+ (erase-buffer)
+ (insert-buffer buf)
+ (mml-to-mime)
+ (unless raw
+ (run-hooks 'gnus-article-decode-hook)
+ (let ((gnus-newsgroup-name "dummy"))
+ (gnus-article-prepare-display)))
+ (fundamental-mode)
+ (setq buffer-read-only t)
+ (goto-char (point-min))))
+
+(defun mml-validate ()
+ "Validate the current MML document."
+ (interactive)
+ (mml-parse))
+
(provide 'mml)
;;; mml.el ends here
projects / elisp / gnus.git- / blobdiff