+)
+
+(autoload 'mime-encode-field-body "eword-encode"
+ "Encode FIELD-BODY as FIELD-NAME, and return the result.")
+
+
+;;; @ Entity Representation and Implementation
+;;;
+
+(defmacro mime-entity-send (entity message &rest args)
+ `(luna-send ,entity ',(intern (format "mime-%s" (eval message))) ,@args))
+
+(defun mime-open-entity (type location)
+ "Open an entity and return it.
+TYPE is representation-type.
+LOCATION is location of entity. Specification of it is depended on
+representation-type."
+ (require (intern (format "mm%s" type)))
+ (luna-make-entity (mm-expand-class-name type) :location location))
+
+(luna-define-generic mime-entity-cooked-p (entity)
+ "Return non-nil if contents of ENTITY has been already code-converted.")
+
+
+;;; @ Entity as node of message
+;;;
+
+(defun mime-entity-children (entity)
+ "Return list of entities included in the ENTITY."
+ (or (mime-entity-children-internal entity)
+ (luna-send entity 'mime-entity-children entity)))
+
+(defun mime-entity-node-id (entity)
+ "Return node-id of ENTITY."
+ (mime-entity-node-id-internal entity))
+
+(defun mime-entity-number (entity)
+ "Return entity-number of ENTITY."
+ (reverse (mime-entity-node-id-internal entity)))
+
+(defun mime-find-entity-from-number (entity-number message)
+ "Return entity from ENTITY-NUMBER in MESSAGE."
+ (let ((sn (car entity-number)))
+ (if (null sn)
+ message
+ (let ((rc (nth sn (mime-entity-children message))))
+ (if rc
+ (mime-find-entity-from-number (cdr entity-number) rc)
+ ))
+ )))
+
+(defun mime-find-entity-from-node-id (entity-node-id message)
+ "Return entity from ENTITY-NODE-ID in MESSAGE."
+ (mime-find-entity-from-number (reverse entity-node-id) message))
+
+(defun mime-find-entity-from-content-id (cid message)
+ "Return entity from CID in MESSAGE."
+ (if (equal cid (mime-entity-read-field message "Content-Id"))
+ message
+ (let ((children (mime-entity-children message))
+ ret)
+ (while (and children
+ (null (setq ret (mime-find-entity-from-content-id
+ cid (car children)))))
+ (setq children (cdr children)))
+ ret)))
+
+(defun mime-entity-parent (entity &optional message)
+ "Return mother entity of ENTITY.
+If MESSAGE is specified, it is regarded as root entity."
+ (if (equal entity message)
+ nil
+ (mime-entity-parent-internal entity)))
+
+(defun mime-root-entity-p (entity &optional message)
+ "Return t if ENTITY is root-entity (message).
+If MESSAGE is specified, it is regarded as root entity."
+ (null (mime-entity-parent entity message)))
+
+(defun mime-find-root-entity (entity)
+ "Return root entity of ENTITY."
+ (let ((p (mime-entity-parent entity)))
+ (if (null p)
+ entity
+ (mime-entity-parent p))))
+
+
+;;; @ Header buffer (obsolete)
+;;;
+
+;; (luna-define-generic mime-entity-header-buffer (entity))
+
+;; (luna-define-generic mime-goto-header-start-point (entity)
+;; "Set buffer and point to header-start-position of ENTITY.")
+
+;; (luna-define-generic mime-entity-header-start-point (entity)
+;; "Return header-start-position of ENTITY.")
+
+;; (luna-define-generic mime-entity-header-end-point (entity)
+;; "Return header-end-position of ENTITY.")
+
+;; (make-obsolete 'mime-entity-header-buffer "don't use it.")
+;; (make-obsolete 'mime-goto-header-start-point "don't use it.")
+;; (make-obsolete 'mime-entity-header-start-point "don't use it.")
+;; (make-obsolete 'mime-entity-header-end-point "don't use it.")
+
+
+;;; @ Body buffer (obsolete)
+;;;
+
+;; (luna-define-generic mime-entity-body-buffer (entity))
+
+;; (luna-define-generic mime-goto-body-start-point (entity)
+;; "Set buffer and point to body-start-position of ENTITY.")
+
+;; (luna-define-generic mime-goto-body-end-point (entity)
+;; "Set buffer and point to body-end-position of ENTITY.")
+
+;; (luna-define-generic mime-entity-body-start-point (entity)
+;; "Return body-start-position of ENTITY.")
+
+;; (luna-define-generic mime-entity-body-end-point (entity)
+;; "Return body-end-position of ENTITY.")
+
+;; (defalias 'mime-entity-body-start 'mime-entity-body-start-point)
+;; (defalias 'mime-entity-body-end 'mime-entity-body-end-point)
+
+;; (make-obsolete 'mime-entity-body-buffer "don't use it.")
+;; (make-obsolete 'mime-goto-body-start-point "don't use it.")
+;; (make-obsolete 'mime-goto-body-end-point "don't use it.")
+;; (make-obsolete 'mime-entity-body-start-point "don't use it.")
+;; (make-obsolete 'mime-entity-body-end-point "don't use it.")
+;; (make-obsolete 'mime-entity-body-start "don't use it.")
+;; (make-obsolete 'mime-entity-body-end "don't use it.")
+
+
+;;; @ Entity buffer (obsolete)
+;;;
+
+;; (luna-define-generic mime-entity-buffer (entity))
+;; (make-obsolete 'mime-entity-buffer "don't use it.")
+
+;; (luna-define-generic mime-entity-point-min (entity))
+;; (make-obsolete 'mime-entity-point-min "don't use it.")
+
+;; (luna-define-generic mime-entity-point-max (entity))
+;; (make-obsolete 'mime-entity-point-max "don't use it.")
+
+
+;;; @ Entity
+;;;
+
+(luna-define-generic mime-insert-entity (entity)
+ "Insert header and body of ENTITY at point.")
+
+(luna-define-generic mime-write-entity (entity filename)
+ "Write header and body of ENTITY into FILENAME.")
+
+
+;;; @ Entity Body
+;;;
+
+(luna-define-generic mime-entity-body (entity)
+ "Return network representation of ENTITY body.")
+
+(luna-define-generic mime-insert-entity-body (entity)
+ "Insert network representation of ENTITY body at point.")
+
+(luna-define-generic mime-write-entity-body (entity filename)
+ "Write body of ENTITY into FILENAME.")
+
+
+;;; @ Entity Content
+;;;
+
+(luna-define-generic mime-entity-content (entity)
+ "Return content of ENTITY as byte sequence (string).")
+
+(luna-define-generic mime-insert-entity-content (entity)
+ "Insert content of ENTITY at point.")
+
+(luna-define-generic mime-write-entity-content (entity filename)
+ "Write content of ENTITY into FILENAME.")
+
+(luna-define-generic mime-insert-text-content (entity)
+ "Insert decoded text body of ENTITY.")
+