+(defun mm-alist-to-plist (alist)
+ "Convert association list ALIST into the equivalent property-list form.
+The plist is returned. This converts from
+
+\((a . 1) (b . 2) (c . 3))
+
+into
+
+\(a 1 b 2 c 3)
+
+The original alist is not modified. See also `destructive-alist-to-plist'."
+ (let (plist)
+ (while alist
+ (let ((el (car alist)))
+ (setq plist (cons (cdr el) (cons (car el) plist))))
+ (setq alist (cdr alist)))
+ (nreverse plist)))
+
+(defun mm-keep-viewer-alive-p (handle)
+ "Say whether external viewer for HANDLE should stay alive."
+ (let ((types mm-keep-viewer-alive-types)
+ (type (mm-handle-media-type handle))
+ ty)
+ (catch 'found
+ (while (setq ty (pop types))
+ (when (string-match ty type)
+ (throw 'found t))))))
+
+(defun mm-handle-set-external-undisplayer (handle function)
+ "Set the undisplayer for this handle; postpone undisplaying of viewers
+for types in mm-keep-viewer-alive-types."
+ (if (mm-keep-viewer-alive-p handle)
+ (let ((new-handle (copy-sequence handle)))
+ (mm-handle-set-undisplayer new-handle function)
+ (mm-handle-set-undisplayer handle nil)
+ (push new-handle mm-postponed-undisplay-list))
+ (mm-handle-set-undisplayer handle function)))
+
+(defun mm-destroy-postponed-undisplay-list ()
+ (when mm-postponed-undisplay-list
+ (message "Destroying external MIME viewers")
+ (mm-destroy-parts mm-postponed-undisplay-list)))
+
+(defun mm-dissect-buffer (&optional no-strict-mime loose-mime)