;;; mm-decode.el --- Functions for decoding MIME things
-;; Copyright (C) 1998-2000 Free Software Foundation, Inc.
+;; Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; MORIOKA Tomohiko <morioka@jaist.ac.jp>
(require 'mail-parse)
(require 'mailcap)
(require 'mm-bodies)
+(eval-when-compile (require 'cl))
-(defvar mm-xemacs-p (string-match "XEmacs" (emacs-version)))
+(eval-and-compile
+ (autoload 'mm-inline-partial "mm-partial"))
(defgroup mime-display ()
"Display of MIME in mail and news articles."
:link '(custom-manual "(emacs-mime)Customization")
:group 'mail
- :group 'news)
+ :group 'news
+ :group 'multimedia)
;;; Convenience macros.
("text/x-patch" mm-display-patch-inline
(lambda (handle)
(locate-library "diff-mode")))
+ ("application/emacs-lisp" mm-display-elisp-inline identity)
("text/html"
mm-inline-text
(lambda (handle)
(locate-library "vcard"))))
("message/delivery-status" mm-inline-text identity)
("message/rfc822" mm-inline-message identity)
+ ("message/partial" mm-inline-partial identity)
("text/.*" mm-inline-text identity)
("audio/wav" mm-inline-audio
(lambda (handle)
(defcustom mm-inlined-types
'("image/.*" "text/.*" "message/delivery-status" "message/rfc822"
+ "message/partial" "application/emacs-lisp"
"application/pgp-signature")
"List of media types that are to be displayed inline."
:type '(repeat string)
(defcustom mm-automatic-display
'("text/plain" "text/enriched" "text/richtext" "text/html"
"text/x-vcard" "image/.*" "message/delivery-status" "multipart/.*"
- "message/rfc822" "text/x-patch" "application/pgp-signature")
+ "message/rfc822" "text/x-patch" "application/pgp-signature"
+ "application/emacs-lisp")
"A list of MIME types to be displayed automatically."
:type '(repeat string)
:group 'mime-display)
Viewing agents are supposed to view the last possible part of a message,
as that is supposed to be the richest. However, users may prefer other
types instead, and this list says what types are most unwanted. If,
-for instance, text/html parts are very unwanted, and text/richtech are
+for instance, text/html parts are very unwanted, and text/richtext are
somewhat unwanted, then the value of this variable should be set
to:
(defvar mm-last-shell-command "")
(defvar mm-content-id-alist nil)
+;; According to RFC2046, in particular, in a digest, the default
+;; Content-Type value for a body part is changed from "text/plain" to
+;; "message/rfc822".
+(defvar mm-dissect-default-type "text/plain")
+
;;; The functions.
(defun mm-dissect-buffer (&optional no-strict-mime)
(if (or (not ctl)
(not (string-match "/" (car ctl))))
(mm-dissect-singlepart
- '("text/plain")
+ (list mm-dissect-default-type)
(and cte (intern (downcase (mail-header-remove-whitespace
(mail-header-remove-comments
cte)))))
result
(cond
((equal type "multipart")
- (cons (car ctl) (mm-dissect-multipart ctl)))
+ (let ((mm-dissect-default-type (if (equal subtype "digest")
+ "message/rfc822"
+ "text/plain")))
+ (cons (car ctl) (mm-dissect-multipart ctl))))
(t
(mm-dissect-singlepart
ctl
(if (re-search-backward close-delimiter nil t)
(match-beginning 0)
(point-max)))))
- (while (search-forward boundary end t)
+ (setq boundary (concat (regexp-quote boundary) "[ \t]*$"))
+ (while (re-search-forward boundary end t)
(goto-char (match-beginning 0))
(when start
(save-excursion
(buffer-disable-undo)
(mm-set-buffer-file-coding-system mm-binary-coding-system)
(insert-buffer-substring cur)
+ (goto-char (point-min))
(message "Viewing with %s" method)
(let ((mm (current-buffer))
(non-viewer (assq 'non-viewer
(unwind-protect
(start-process "*display*" nil
"xterm"
- "-e" shell-file-name
+ "-e" shell-file-name
shell-command-switch
(mm-mailcap-command
method file (mm-handle-type handle)))
(unwind-protect
(progn
(call-process shell-file-name nil
- (setq buffer
+ (setq buffer
(generate-new-buffer "*mm*"))
nil
shell-command-switch
(mapconcat 'identity (nreverse out) "")))
(defun mm-remove-parts (handles)
- "Remove the displayed MIME parts represented by HANDLE."
+ "Remove the displayed MIME parts represented by HANDLES."
(if (and (listp handles)
(bufferp (car handles)))
(mm-remove-part handles)
(mm-remove-part handle)))))))
(defun mm-destroy-parts (handles)
- "Remove the displayed MIME parts represented by HANDLE."
+ "Remove the displayed MIME parts represented by HANDLES."
(if (and (listp handles)
(bufferp (car handles)))
(mm-destroy-part handles)
(save-excursion
(if (member (mm-handle-media-supertype handle) '("text" "message"))
(with-temp-buffer
- (insert-buffer-substring (mm-handle-buffer handle))
+ (insert-buffer-substring (mm-handle-buffer handle))
(mm-decode-content-transfer-encoding
(mm-handle-encoding handle)
(mm-handle-media-type handle))
(method (completing-read "Viewer: " methods)))
(when (string= method "")
(error "No method given"))
+ (if (string-match "^[^% \t]+$" method)
+ (setq method (concat method " %s")))
(mm-display-external (copy-sequence handle) method)))
(defun mm-preferred-alternative (handles &optional preferred)
result))
(defun mm-preferred-alternative-precedence (handles)
- "Return the precedence based on HANDLES and mm-discouraged-alternatives."
- (let ((seq (nreverse (mapcar (lambda (h)
- (mm-handle-media-type h))
+ "Return the precedence based on HANDLES and `mm-discouraged-alternatives'."
+ (let ((seq (nreverse (mapcar #'mm-handle-media-type
handles))))
(dolist (disc (reverse mm-discouraged-alternatives))
(dolist (elem (copy-sequence seq))
"Return the handle(s) referred to by ID."
(cdr (assoc id mm-content-id-alist)))
-(defun mm-get-image-emacs (handle)
- "Return an image instance based on HANDLE."
- (let ((type (mm-handle-media-subtype handle))
- spec)
- ;; Allow some common translations.
- (setq type
- (cond
- ((equal type "x-pixmap")
- "xpm")
- ((equal type "x-xbitmap")
- "xbm")
- (t type)))
- (or (mm-handle-cache handle)
- (mm-with-unibyte-buffer
- (mm-insert-part handle)
- (prog1
- (setq spec
- (ignore-errors
- (cond
- ((equal type "xbm")
- ;; xbm images require special handling, since
- ;; the only way to create glyphs from these
- ;; (without a ton of work) is to write them
- ;; out to a file, and then create a file
- ;; specifier.
- (error "Don't know what to do for XBMs right now."))
- (t
- (list 'image :type (intern type) :data (buffer-string))))))
- (mm-handle-set-cache handle spec))))))
-
-(defun mm-get-image-xemacs (handle)
+(defun mm-get-image (handle)
"Return an image instance based on HANDLE."
(let ((type (mm-handle-media-subtype handle))
spec)
(prog1
(setq spec
(ignore-errors
- (cond
- ((equal type "xbm")
- ;; xbm images require special handling, since
- ;; the only way to create glyphs from these
- ;; (without a ton of work) is to write them
- ;; out to a file, and then create a file
- ;; specifier.
- (let ((file (make-temp-name
- (expand-file-name "emm.xbm"
- mm-tmp-directory))))
- (unwind-protect
- (progn
- (write-region (point-min) (point-max) file)
- (make-glyph (list (cons 'x file))))
- (ignore-errors
- (delete-file file)))))
- (t
- (make-glyph
- (vector (intern type) :data (buffer-string)))))))
+ ;; Avoid testing `make-glyph' since W3 may define
+ ;; a bogus version of it.
+ (if (fboundp 'create-image)
+ (create-image (buffer-string) (intern type) 'data-p)
+ (cond
+ ((equal type "xbm")
+ ;; xbm images require special handling, since
+ ;; the only way to create glyphs from these
+ ;; (without a ton of work) is to write them
+ ;; out to a file, and then create a file
+ ;; specifier.
+ (let ((file (make-temp-name
+ (expand-file-name "emm.xbm"
+ mm-tmp-directory))))
+ (unwind-protect
+ (progn
+ (write-region (point-min) (point-max) file)
+ (make-glyph (list (cons 'x file))))
+ (ignore-errors
+ (delete-file file)))))
+ (t
+ (make-glyph
+ (vector (intern type) :data (buffer-string))))))))
(mm-handle-set-cache handle spec))))))
-(defun mm-get-image (handle)
- (if mm-xemacs-p
- (mm-get-image-xemacs handle)
- (mm-get-image-emacs handle)))
-
(defun mm-image-fit-p (handle)
"Say whether the image in HANDLE will fit the current window."
(let ((image (mm-get-image handle)))
(or mm-inline-large-images
(and (< (glyph-width image) (window-pixel-width))
(< (glyph-height image) (window-pixel-height))))
- ;; Let's just inline everything under Emacs 21, since the image
- ;; specification there doesn't actually get the width/height
- ;; until you render the image.
- t)))
+ (let* ((size (image-size image))
+ (w (car size))
+ (h (cdr size)))
+ (or mm-inline-large-images
+ (and (< h (1- (window-height))) ; Don't include mode line.
+ (< w (window-width))))))))
(defun mm-valid-image-format-p (format)
"Say whether FORMAT can be displayed natively by Emacs."
(valid-image-instantiator-format-p format))
;; Handle Emacs 21
((fboundp 'image-type-available-p)
- (image-type-available-p format))
+ (and (display-graphic-p)
+ (image-type-available-p format)))
;; Nobody else can do images yet.
(t
nil)))
(provide 'mm-decode)
-;; mm-decode.el ends here
+;;; mm-decode.el ends here
projects / gnus / blobdiff