+ (let ((w3-strict-width width)
+ ;; Don't let w3 set the global version of
+ ;; this variable.
+ (fill-column fill-column))
+ (if (or debug-on-error debug-on-quit)
+ (w3-region (point-min) (point-max))
+ (condition-case ()
+ (w3-region (point-min) (point-max))
+ (error
+ (delete-region (point-min) (point-max))
+ (let ((b (point))
+ (charset (mail-content-type-get
+ (mm-handle-type handle) 'charset)))
+ (if (or (eq charset 'gnus-decoded)
+ (eq mail-parse-charset 'gnus-decoded))
+ (save-restriction
+ (narrow-to-region (point) (point))
+ (mm-insert-part handle)
+ (goto-char (point-max)))
+ (insert (mm-decode-string (mm-get-part handle)
+ charset))))
+ (message
+ "Error while rendering html; showing as text/plain")))))))
+ (mm-handle-set-undisplayer
+ handle
+ `(lambda ()
+ (let (buffer-read-only)
+ (if (functionp 'remove-specifier)
+ (mapcar (lambda (prop)
+ (remove-specifier
+ (face-property 'default prop)
+ (current-buffer)))
+ '(background background-pixmap foreground)))
+ (delete-region ,(point-min-marker)
+ ,(point-max-marker)))))))))
+
+(defvar mm-w3m-mode-map nil
+ "Local keymap for inlined text/html part rendered by emacs-w3m. It will
+be different from `w3m-mode-map' to use in the article buffer.")
+
+(defvar mm-w3m-mode-command-alist
+ '((backward-char)
+ (describe-mode)
+ (forward-char)
+ (goto-line)
+ (next-line)
+ (previous-line)
+ (w3m-antenna)
+ (w3m-antenna-add-current-url)
+ (w3m-bookmark-add-current-url)
+ (w3m-bookmark-add-this-url)
+ (w3m-bookmark-view)
+ (w3m-close-window)
+ (w3m-copy-buffer)
+ (w3m-delete-buffer)
+ (w3m-dtree)
+ (w3m-edit-current-url)
+ (w3m-edit-this-url)
+ (w3m-gohome)
+ (w3m-goto-url)
+ (w3m-goto-url-new-session)
+ (w3m-history)
+ (w3m-history-restore-position)
+ (w3m-history-store-position)
+ (w3m-namazu)
+ (w3m-next-buffer)
+ (w3m-previous-buffer)
+ (w3m-quit)
+ (w3m-redisplay-with-charset)
+ (w3m-reload-this-page)
+ (w3m-scroll-down-or-previous-url)
+ (w3m-scroll-up-or-next-url)
+ (w3m-search)
+ (w3m-select-buffer)
+ (w3m-switch-buffer)
+ (w3m-view-header)
+ (w3m-view-parent-page)
+ (w3m-view-previous-page)
+ (w3m-view-source)
+ (w3m-weather))
+ "Alist of commands to use for emacs-w3m in the article buffer. Each
+element looks like (FROM-COMMAND . TO-COMMAND); FROM-COMMAND should be
+registered in `w3m-mode-map' which will be substituted by TO-COMMAND
+in `mm-w3m-mode-map'. If TO-COMMAND is nil, an article command key
+will not be substituted.")
+
+(defvar mm-w3m-mode-dont-bind-keys (list [up] [right] [left] [down])
+ "List of keys which should not be bound for the emacs-w3m commands.")
+
+(defvar mm-w3m-setup nil
+ "Whether gnus-article-mode has been setup to use emacs-w3m.")
+
+(defun mm-setup-w3m ()
+ "Setup gnus-article-mode to use emacs-w3m."
+ (unless mm-w3m-setup
+ (require 'w3m)
+ (unless mm-w3m-mode-map
+ (setq mm-w3m-mode-map (copy-keymap w3m-mode-map))
+ (dolist (def mm-w3m-mode-command-alist)
+ (condition-case nil
+ (substitute-key-definition (car def) (cdr def) mm-w3m-mode-map)
+ (error)))
+ (dolist (key mm-w3m-mode-dont-bind-keys)
+ (condition-case nil
+ (define-key mm-w3m-mode-map key nil)
+ (error))))
+ (unless (assq 'gnus-article-mode w3m-cid-retrieve-function-alist)
+ (push (cons 'gnus-article-mode 'mm-w3m-cid-retrieve)
+ w3m-cid-retrieve-function-alist))
+ (setq mm-w3m-setup t)))
+
+(defun mm-w3m-cid-retrieve (url &rest args)
+ "Insert a content pointed by URL if it has the cid: scheme."
+ (when (string-match "\\`cid:" url)
+ (setq url (concat "<" (substring url (match-end 0)) ">"))
+ (catch 'found-handle
+ (dolist (handle (with-current-buffer w3m-current-buffer
+ gnus-article-mime-handles))
+ (when (and (listp handle)
+ (equal url (mm-handle-id handle)))
+ (mm-insert-part handle)
+ (throw 'found-handle (mm-handle-media-type handle)))))))
+
+(defun mm-inline-text-html-render-with-w3m (handle)
+ "Render a text/html part using emacs-w3m."
+ (mm-setup-w3m)
+ (let ((text (mm-get-part handle))
+ (b (point))
+ (charset (mail-content-type-get (mm-handle-type handle) 'charset)))
+ (save-excursion
+ (insert text)
+ (save-restriction
+ (narrow-to-region b (point))
+ (goto-char (point-min))
+ (when (re-search-forward w3m-meta-content-type-charset-regexp nil t)
+ (setq charset (or (w3m-charset-to-coding-system (match-string 2))
+ charset)))
+ (when charset
+ (delete-region (point-min) (point-max))
+ (insert (mm-decode-string text charset)))
+ (let ((w3m-safe-url-regexp (if mm-inline-text-html-with-images
+ nil
+ "\\`cid:"))
+ (w3m-display-inline-images mm-inline-text-html-with-images)
+ w3m-force-redisplay)
+ (w3m-region (point-min) (point-max)))
+ (when mm-inline-text-html-with-w3m-keymap
+ (add-text-properties
+ (point-min) (point-max)
+ (append '(mm-inline-text-html-with-w3m t)
+ (gnus-local-map-property mm-w3m-mode-map)))))
+ (mm-handle-set-undisplayer
+ handle
+ `(lambda ()
+ (let (buffer-read-only)
+ (if (functionp 'remove-specifier)
+ (mapcar (lambda (prop)
+ (remove-specifier
+ (face-property 'default prop)
+ (current-buffer)))
+ '(background background-pixmap foreground)))
+ (delete-region ,(point-min-marker)
+ ,(point-max-marker))))))))
+
+(defun mm-links-remove-leading-blank ()
+ ;; Delete the annoying three spaces preceding each line of links
+ ;; output.
+ (goto-char (point-min))
+ (while (re-search-forward "^ " nil t)
+ (delete-region (match-beginning 0) (match-end 0))))
+
+(defun mm-inline-wash-with-file (post-func cmd &rest args)
+ (let ((file (mm-make-temp-file
+ (expand-file-name "mm" mm-tmp-directory))))
+ (let ((coding-system-for-write 'binary))
+ (write-region (point-min) (point-max) file nil 'silent))
+ (delete-region (point-min) (point-max))
+ (unwind-protect
+ (apply 'call-process cmd nil t nil (mapcar 'eval args))
+ (delete-file file))
+ (and post-func (funcall post-func))))
+
+(defun mm-inline-wash-with-stdin (post-func cmd &rest args)
+ (let ((coding-system-for-write 'binary))
+ (apply 'call-process-region (point-min) (point-max)
+ cmd t t nil args))
+ (and post-func (funcall post-func)))
+
+(defun mm-inline-render-with-file (handle post-func cmd &rest args)
+ (let ((source (mm-get-part handle)))
+ (mm-insert-inline
+ handle
+ (mm-with-unibyte-buffer
+ (insert source)
+ (apply 'mm-inline-wash-with-file post-func cmd args)
+ (buffer-string)))))
+
+(defun mm-inline-render-with-stdin (handle post-func cmd &rest args)
+ (let ((source (mm-get-part handle)))
+ (mm-insert-inline
+ handle
+ (mm-with-unibyte-buffer
+ (insert source)
+ (apply 'mm-inline-wash-with-stdin post-func cmd args)
+ (buffer-string)))))
+
+(defun mm-inline-render-with-function (handle func &rest args)
+ (let ((source (mm-get-part handle)))
+ (mm-insert-inline
+ handle
+ (mm-with-unibyte-buffer
+ (insert source)
+ (apply func args)
+ (buffer-string)))))
+
+(defun mm-inline-text-html (handle)
+ (let* ((func (or mm-inline-text-html-renderer mm-text-html-renderer))
+ (entry (assq func mm-text-html-renderer-alist))
+ buffer-read-only)
+ (if entry
+ (setq func (cdr entry)))
+ (cond
+ ((gnus-functionp func)
+ (funcall func handle))