- (setq file
- (read-file-name
- (or prompt
- (format "Save MIME part to (default %s): "
- (or filename "")))
- (or mm-default-directory default-directory)
- (expand-file-name (or filename "")
- (or mm-default-directory default-directory))))
+ (while
+ (progn
+ (setq file
+ (read-file-name
+ (or prompt
+ (format "Save MIME part to (default %s): "
+ (or filename "")))
+ (or mm-default-directory default-directory)
+ (expand-file-name (or filename "")
+ (or mm-default-directory default-directory))))
+ (cond ((or (not file) (equal file ""))
+ (message "Please enter a file name")
+ t)
+ ((and (file-directory-p file)
+ (not filename))
+ (message "Please enter a non-directory file name")
+ t)
+ (t nil)))
+ (sit-for 2)
+ (discard-input))