* mime-edit.el (mime-edit-sign-pgp-mime): Create a signature for
[elisp/semi.git] / mime-edit.el
index 40332c4..87d0e30 100644 (file)
@@ -1,10 +1,10 @@
 ;;; mime-edit.el --- Simple MIME Composer for GNU Emacs
 
-;; Copyright (C) 1993,1994,1995,1996,1997,1998 Free Software Foundation, Inc.
+;; Copyright (C) 1993,94,95,96,97,98,99,2000 Free Software Foundation, Inc.
 
 ;; Author: UMEDA Masanobu <umerin@mse.kyutech.ac.jp>
-;;         MORIOKA Tomohiko <morioka@jaist.ac.jp>
-;; Maintainer: MORIOKA Tomohiko <morioka@jaist.ac.jp>
+;;     MORIOKA Tomohiko <tomo@kanji.zinbun.kyoto-u.ac.jp>
+;;     Daiki Ueno <ueno@unixuser.org>
 ;; Created: 1994/08/21 renamed from mime.el
 ;;     Renamed: 1997/2/21 from tm-edit.el
 ;; Keywords: MIME, multimedia, multilingual, mail, news
@@ -23,8 +23,8 @@
 
 ;; You should have received a copy of the GNU General Public License
 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
 
 ;;; Commentary:
 
 
 ;;; Code:
 
-(require 'emu)
 (require 'sendmail)
 (require 'mail-utils)
 (require 'mel)
 (require 'mime-view)
-(require 'eword-encode)
 (require 'signature)
 (require 'alist)
+(require 'epa)
 
 
 ;;; @ version
 ;;;
 
-(defconst mime-edit-version-string
-  `,(concat (car mime-module-version) " "
-           (mapconcat #'number-to-string (cddr mime-module-version) ".")
-           " - \"" (cadr mime-module-version) "\""))
+(eval-and-compile
+  (defconst mime-edit-version
+    (concat
+     (mime-product-name mime-user-interface-product) " "
+     (mapconcat #'number-to-string
+               (mime-product-version mime-user-interface-product) ".")
+     " - \"" (mime-product-code-name mime-user-interface-product) "\"")))
 
 
 ;;; @ variables
@@ -184,19 +186,12 @@ To insert a signature file automatically, call the function
      ("plain"
       ;;("charset" "" "ISO-2022-JP" "US-ASCII" "ISO-8859-1" "ISO-8859-8")
       )
-     ("richtext"
-      ;;("charset" "" "ISO-2022-JP" "US-ASCII" "ISO-8859-1" "ISO-8859-8")
-      )
-     ("enriched"
-      ;;("charset" "" "ISO-2022-JP" "US-ASCII" "ISO-8859-1" "ISO-8859-8")
-      )
-     ("x-latex"
-      ;;("charset" "" "ISO-2022-JP" "US-ASCII" "ISO-8859-1" "ISO-8859-8")
-      )
-     ("html"
-      ;;("charset" "" "ISO-2022-JP" "US-ASCII" "ISO-8859-1" "ISO-8859-8")
-      )
-     ("x-rot13-47-48")
+     ("enriched")
+     ("html")
+     ("css") ; rfc2318
+     ("xml") ; rfc2376
+     ("x-latex")
+     ;; ("x-rot13-47-48")
      )
     ("message"
      ("external-body"
@@ -214,13 +209,19 @@ To insert a signature file automatically, call the function
        ("tftp"        ("site") ("name"))
        ("afs"         ("site") ("name"))
        ("local-file"  ("site") ("name"))
-       ("mail-server" ("server" "ftpmail@nic.karrn.ad.jp"))
-       ))
+       ("mail-server"
+       ("server" "ftpmail@nic.karrn.ad.jp")
+       ("subject"))
+       ("url"         ("url"))))
      ("rfc822")
-     )
+     ("news"))
     ("application"
      ("octet-stream" ("type" "" "tar" "shar"))
      ("postscript")
+     ("pdf")
+     ("msword")
+     ("vnd.ms-excel")
+     ("vnd.ms-powerpoint")
      ("x-kiss" ("x-cnf")))
     ("image"
      ("gif")
@@ -230,154 +231,174 @@ To insert a signature file automatically, call the function
      ("x-pic")
      ("x-mag")
      ("x-xwd")
-     ("x-xbm")
-     )
+     ("x-xbm"))
     ("audio" ("basic"))
-    ("video" ("mpeg"))
-    )
+    ("video" ("mpeg")))
   "*Alist of content-type, subtype, parameters and its values.")
 
 (defcustom mime-file-types
-  '(("\\.txt$"
+  '(
+
+    ;; Programming languages
+
+    ("\\.cc$"
+     "application" "octet-stream" (("type" . "C++"))
+     "7bit"
+     "attachment"      (("filename" . file)))
+
+    ("\\.el$"
+     "application" "octet-stream" (("type" . "emacs-lisp"))
+     "7bit"
+     "attachment"      (("filename" . file)))
+
+    ("\\.lsp$"
+     "application" "octet-stream" (("type" . "common-lisp"))
+     "7bit"
+     "attachment"      (("filename" . file)))
+
+    ("\\.pl$"
+     "application" "octet-stream" (("type" . "perl"))
+     "7bit"
+     "attachment"      (("filename" . file)))
+
+    ;; Text or translated text
+
+    ("\\.txt$"
      "text"    "plain"         nil
      nil
-     "inline"          (("filename" . file))
-     )
-    ("\\.pln$"
+     "inline"          (("filename" . file)))
+
+     ;; .rc : procmail modules pm-xxxx.rc
+     ;; *rc : other resource files
+
+    ("\\.\\(rc\\|lst\\|log\\|sql\\|mak\\)$\\|\\..*rc$"
      "text"    "plain"         nil
      nil
-     "inline"          (("filename" . file))
-     )
-    ("\\.rtf$"
-     "text"    "richtext"      nil
-     nil
-     nil               nil)
+     "attachment"      (("filename" . file)))
+
     ("\\.html$"
      "text"    "html"          nil
      nil
      nil               nil)
+
+    ("\\.diff$\\|\\.patch$"
+     "application" "octet-stream" (("type" . "patch"))
+     nil
+     "attachment"      (("filename" . file)))
+
+    ("\\.signature"
+     "text"    "plain"         nil     nil     nil     nil)
+
+
+    ;;  Octect binary text
+
+    ("\\.doc$"                         ;MS Word
+     "application" "msword" nil
+     "base64"
+     "attachment" (("filename" . file)))
+    ("\\.xls$"                         ; MS Excel
+     "application" "vnd.ms-excel" nil
+     "base64"
+     "attachment" (("filename" . file)))
+    ("\\.ppt$"                         ; MS Power Point
+     "application" "vnd.ms-powerpoint" nil
+     "base64"
+     "attachment" (("filename" . file)))
+
+    ("\\.pln$"
+     "text"    "plain"         nil
+     nil
+     "inline"          (("filename" . file)))
     ("\\.ps$"
      "application" "postscript"        nil
-     "quoted-printable"
-     "attachment"      (("filename" . file))
-     )
-    ("\\.jpg$"
+     "base64"
+     "attachment"      (("filename" . file)))
+    ("\\.pdf$"
+     "application" "pdf"       nil
+     "base64"
+     "attachment"      (("filename" . file)))
+
+    ;;  Pure binary
+
+    ("\\.jpg$\\|\\.jpeg$"
      "image"   "jpeg"          nil
      "base64"
-     "inline"          (("filename" . file))
-     )
+     "inline"          (("filename" . file)))
     ("\\.gif$"
      "image"   "gif"           nil
      "base64"
-     "inline"          (("filename" . file))
-     )
+     "inline"          (("filename" . file)))
     ("\\.png$"
      "image"   "png"           nil
      "base64"
-     "inline"          (("filename" . file))
-     )
+     "inline"          (("filename" . file)))
     ("\\.tiff$"
      "image"   "tiff"          nil
      "base64"
-     "inline"          (("filename" . file))
-     )
+     "inline"          (("filename" . file)))
     ("\\.pic$"
      "image"   "x-pic"         nil
      "base64"
-     "inline"          (("filename" . file))
-     )
+     "inline"          (("filename" . file)))
     ("\\.mag$"
      "image"   "x-mag"         nil
      "base64"
-     "inline"          (("filename" . file))
-     )
+     "inline"          (("filename" . file)))
     ("\\.xbm$"
      "image"   "x-xbm"         nil
      "base64"
-     "inline"          (("filename" . file))
-     )
+     "inline"          (("filename" . file)))
     ("\\.xwd$"
      "image"   "x-xwd"         nil
      "base64"
-     "inline"          (("filename" . file))
-     )
+     "inline"          (("filename" . file)))
     ("\\.au$"
      "audio"   "basic"         nil
      "base64"
-     "attachment"              (("filename" . file))
-     )
+     "attachment"              (("filename" . file)))
     ("\\.mpg$"
      "video"   "mpeg"          nil
      "base64"
-     "attachment"      (("filename" . file))
-     )
-    ("\\.el$"
-     "application" "octet-stream" (("type" . "emacs-lisp"))
-     "7bit"
-     "attachment"      (("filename" . file))
-     )
-    ("\\.lsp$"
-     "application" "octet-stream" (("type" . "common-lisp"))
-     "7bit"
-     "attachment"      (("filename" . file))
-     )
+     "attachment"      (("filename" . file)))
     ("\\.tar\\.gz$"
      "application" "octet-stream" (("type" . "tar+gzip"))
      "base64"
-     "attachment"      (("filename" . file))
-     )
+     "attachment"      (("filename" . file)))
     ("\\.tgz$"
      "application" "octet-stream" (("type" . "tar+gzip"))
      "base64"
-     "attachment"      (("filename" . file))
-     )
+     "attachment"      (("filename" . file)))
     ("\\.tar\\.Z$"
      "application" "octet-stream" (("type" . "tar+compress"))
      "base64"
-     "attachment"      (("filename" . file))
-     )
+     "attachment"      (("filename" . file)))
     ("\\.taz$"
      "application" "octet-stream" (("type" . "tar+compress"))
      "base64"
-     "attachment"      (("filename" . file))
-     )
+     "attachment"      (("filename" . file)))
     ("\\.gz$"
      "application" "octet-stream" (("type" . "gzip"))
      "base64"
-     "attachment"      (("filename" . file))
-     )
+     "attachment"      (("filename" . file)))
     ("\\.Z$"
      "application" "octet-stream" (("type" . "compress"))
      "base64"
-     "attachment"      (("filename" . file))
-     )
+     "attachment"      (("filename" . file)))
     ("\\.lzh$"
      "application" "octet-stream" (("type" . "lha"))
      "base64"
-     "attachment"      (("filename" . file))
-     )
+     "attachment"      (("filename" . file)))
     ("\\.zip$"
      "application" "zip" nil
      "base64"
-     "attachment"      (("filename" . file))
-     )
-    ("\\.diff$"
-     "application" "octet-stream" (("type" . "patch"))
-     nil
-     "attachment"      (("filename" . file))
-     )
-    ("\\.patch$"
-     "application" "octet-stream" (("type" . "patch"))
-     nil
-     "attachment"      (("filename" . file))
-     )
-    ("\\.signature"
-     "text"    "plain"         nil     nil     nil     nil)
+     "attachment"      (("filename" . file)))
+
+    ;; Rest
+
     (".*"
      "application" "octet-stream" nil
      nil
-     "attachment"      (("filename" . file)))
-    )
+     "attachment"      (("filename" . file))))
   "*Alist of file name, types, parameters, and default encoding.
 If encoding is nil, it is determined from its contents."
   :type `(repeat
@@ -385,8 +406,7 @@ If encoding is nil, it is determined from its contents."
                ;; primary-type
                (choice :tag "Primary-Type"
                        ,@(nconc (mapcar (lambda (cell)
-                                          (list 'item (car cell))
-                                          )
+                                          (list 'item (car cell)))
                                         mime-content-types)
                                 '(string)))
                ;; subtype
@@ -395,8 +415,7 @@ If encoding is nil, it is determined from its contents."
                           (apply #'nconc
                                  (mapcar (lambda (cell)
                                            (mapcar (lambda (cell)
-                                                     (list 'item (car cell))
-                                                     )
+                                                     (list 'item (car cell)))
                                                    (cdr cell)))
                                          mime-content-types))
                           '(string)))
@@ -408,9 +427,8 @@ If encoding is nil, it is determined from its contents."
                        ,@(cons
                           '(const nil)
                           (mapcar (lambda (cell)
-                                    (list 'item (car cell))
-                                    )
-                                  mime-file-encoding-method-alist)))
+                                    (list 'item cell))
+                                  (mime-encoding-list))))
                ;; disposition-type
                (choice :tag "Disposition-Type"
                        (item nil)
@@ -419,8 +437,7 @@ If encoding is nil, it is determined from its contents."
                        string)
                ;; parameters
                (repeat :tag "Parameters of Content-Disposition field"
-                       (cons string (choice string symbol)))
-               ))
+                       (cons string (choice string symbol)))))
   :group 'mime-edit)
 
 
@@ -438,16 +455,20 @@ If encoding is nil, it is determined from its contents."
     (iso-8859-7                8 "quoted-printable")
     (iso-8859-8                8 "quoted-printable")
     (iso-8859-9                8 "quoted-printable")
+    (iso-8859-14       8 "quoted-printable")
+    (iso-8859-15       8 "quoted-printable")
     (iso-2022-jp       7 "base64")
+    (iso-2022-jp-3     7 "base64")
     (iso-2022-kr       7 "base64")
     (euc-kr            8 "base64")
-    (cn-gb2312         8 "quoted-printable")
+    (cn-gb             8 "base64")
+    (gb2312            8 "base64")
     (cn-big5           8 "base64")
-    (gb2312            8 "quoted-printable")
     (big5              8 "base64")
+    (shift_jis         8 "base64")
+    (tis-620           8 "base64")
     (iso-2022-jp-2     7 "base64")
-    (iso-2022-int-1    7 "base64")
-    ))
+    (iso-2022-int-1    7 "base64")))
 
 (defvar mime-transfer-level 7
   "*A number of network transfer level.  It should be bigger than 7.")
@@ -456,31 +477,17 @@ If encoding is nil, it is determined from its contents."
 (defsubst mime-encoding-name (transfer-level &optional not-omit)
   (cond ((> transfer-level 8) "binary")
        ((= transfer-level 8) "8bit")
-       (not-omit "7bit")
-       ))
+       (not-omit "7bit")))
 
 (defvar mime-transfer-level-string
   (mime-encoding-name mime-transfer-level 'not-omit)
   "A string formatted version of mime-transfer-level")
 (make-variable-buffer-local 'mime-transfer-level-string)
 
-(defun mime-make-charset-default-encoding-alist (transfer-level)
-  (mapcar (function
-          (lambda (charset-type)
-            (let ((charset  (car charset-type))
-                  (type     (nth 1 charset-type))
-                  (encoding (nth 2 charset-type))
-                  )
-              (if (<= type transfer-level)
-                  (cons charset (mime-encoding-name type))
-                (cons charset encoding)
-                ))))
-         mime-charset-type-list))
-
-(defvar mime-edit-charset-default-encoding-alist
-  (mime-make-charset-default-encoding-alist mime-transfer-level))
-(make-variable-buffer-local 'mime-edit-charset-default-encoding-alist)
+;;; @@ about content transfer encoding
 
+(defvar mime-content-transfer-encoding-priority-list
+  '(nil "8bit" "binary"))
 
 ;;; @@ about message inserting
 ;;;
@@ -523,25 +530,40 @@ If it is not specified for a major-mode,
   :type 'list)
 
 (defconst mime-edit-split-ignored-field-regexp
-  "\\(^Content-\\|^Subject:\\|^Mime-Version:\\|Message-Id:\\)")
+  "\\(^Content-\\|^Subject:\\|^Mime-Version:\\|^Message-Id:\\)")
 
-(defvar mime-edit-split-blind-field-regexp
-  "\\(^[BDFbdf]cc:\\|^cc:[ \t]*$\\)")
+(defcustom mime-edit-split-blind-field-regexp
+  "\\(^[BDFbdf]cc:\\|^cc:[ \t]*$\\)"
+  "*Regular expression to match field-name to be ignored when split sending."
+  :group 'mime-edit
+  :type 'regexp)
 
 (defvar mime-edit-split-message-sender-alist nil)
 
 (defvar mime-edit-news-reply-mode-server-running nil)
 
 
-;;; @@ about PGP
+;;; @@ about PGP/MIME
 ;;;
 
-(defvar mime-edit-signing-type 'pgp-elkins
-  "*PGP signing type (pgp-elkins, pgp-kazu or nil).")
+(defgroup mime-edit-pgp nil
+  "MIME edit mode (PGP/MIME)"
+  :group 'mime-edit)
+
+(defcustom mime-edit-pgp-verbose nil
+  "If non-nil, ask the user about the current operation more verbosely."
+  :group 'mime-edit-pgp
+  :type 'boolean)
 
-(defvar mime-edit-encrypting-type 'pgp-elkins
-  "*PGP encrypting type (pgp-elkins, pgp-kazu or nil).")
+(defcustom mime-edit-pgp-signers nil
+  "A list of your own key ID which will be used to sign a message."
+  :group 'mime-edit-pgp
+  :type '(repeat (string :tag "Key ID")))
 
+(defcustom mime-edit-pgp-encrypt-to-self nil
+  "If t, add your own key ID to recipient list when encryption."
+  :group 'mime-edit-pgp
+  :type 'boolean)
 
 ;;; @@ about tag
 ;;;
@@ -587,28 +609,81 @@ If it is not specified for a major-mode,
 ;;; @@ optional header fields
 ;;;
 
-(defvar mime-edit-insert-x-emacs-field t
-  "*If non-nil, insert X-Emacs header field.")
-
-(defvar mime-edit-x-emacs-value
-  (if (featurep 'xemacs)
-      (concat emacs-version (if (featurep 'mule)
-                               " with mule"
-                             " without mule"))
-    (let ((ver (if (string-match "\\.[0-9]+$" emacs-version)
-                  (substring emacs-version 0 (match-beginning 0))
-                emacs-version)))
-      (if (featurep 'mule)
-         (concat "Emacs " ver
-                 (if enable-multibyte-characters
-                     (concat ", MULE " mule-version)
-                   " (with raw setting)")
-                 (if (featurep 'meadow)
-                     (concat ", " (Meadow-version))
-                   ))
-       ver)))
-  "Body of X-Emacs field.
-If variable `mime-edit-insert-x-emacs-field' is not nil, it is
+(defvar mime-edit-insert-user-agent-field t
+  "*If non-nil, insert User-Agent header field.")
+
+(defvar mime-edit-user-agent-value
+  (concat (mime-product-name mime-user-interface-product)
+         "/"
+         (mapconcat #'number-to-string
+                    (mime-product-version mime-user-interface-product) ".")
+         " ("
+         (mime-product-code-name mime-user-interface-product)
+         ") "
+         (mime-product-name mime-library-product)
+         "/"
+         (mapconcat #'number-to-string
+                    (mime-product-version mime-library-product) ".")
+         " ("
+         (mime-product-code-name mime-library-product)
+         ") "
+         (if (fboundp 'apel-version)
+             (concat (apel-version) " "))
+         "EasyPG/" epg-version-number " "
+         (if (featurep 'xemacs)
+             (concat (cond ((and (featurep 'chise)
+                                 (boundp 'xemacs-chise-version))
+                            (concat "CHISE-MULE/" xemacs-chise-version))
+                           ((featurep 'utf-2000)
+                            (concat "UTF-2000-MULE/" utf-2000-version))
+                           ((featurep 'mule) "MULE"))
+                     " XEmacs"
+                     (if (string-match "^[0-9]+\\(\\.[0-9]+\\)" emacs-version)
+                         (concat
+                          "/"
+                          (substring emacs-version 0 (match-end 0))
+                          (cond ((and (boundp 'xemacs-betaname)
+                                      xemacs-betaname)
+                                 ;; It does not exist in XEmacs
+                                 ;; versions prior to 20.3.
+                                 (concat " " xemacs-betaname))
+                                ((and (boundp 'emacs-patch-level)
+                                      emacs-patch-level)
+                                 ;; It does not exist in FSF Emacs or in
+                                 ;; XEmacs versions earlier than 21.1.1.
+                                 (format " (patch %d)" emacs-patch-level))
+                                (t ""))
+                          " (" xemacs-codename ")"
+                          ;; `xemacs-extra-name' has appeared in the
+                          ;; development version of XEmacs 21.5-b8.
+                          (if (and (boundp 'xemacs-extra-name)
+                                   (symbol-value 'xemacs-extra-name))
+                              (concat " " (symbol-value 'xemacs-extra-name))
+                            "")
+                          " ("
+                          system-configuration ")")
+                       " (" emacs-version ")"))
+           (let ((ver (if (string-match "\\.[0-9]+$" emacs-version)
+                          (substring emacs-version 0 (match-beginning 0))
+                        emacs-version)))
+             (if (featurep 'mule)
+                 (if (boundp 'enable-multibyte-characters)
+                     (concat "Emacs/" ver
+                             " (" system-configuration ")"
+                             (if enable-multibyte-characters
+                                 (concat " MULE/" mule-version)
+                               " (with unibyte mode)")
+                             (if (featurep 'meadow)
+                                 (let ((mver (Meadow-version)))
+                                   (if (string-match "^Meadow-" mver)
+                                       (concat " Meadow/"
+                                               (substring mver
+                                                          (match-end 0)))))))
+                   (concat "MULE/" mule-version
+                           " (based on Emacs " ver ")"))
+               (concat "Emacs/" ver " (" system-configuration ")")))))
+  "Body of User-Agent field.
+If variable `mime-edit-insert-user-agent-field' is not nil, it is
 inserted into message header.")
 
 \f
@@ -620,11 +695,14 @@ inserted into message header.")
 Tspecials means any character that matches with it in header must be quoted.")
 
 (defconst mime-edit-mime-version-value
-  (concat "1.0 (generated by " mime-edit-version-string ")")
+  (concat "1.0 (generated by " mime-edit-version ")")
   "MIME version number.")
 
 (defconst mime-edit-mime-version-field-for-message/partial
-  (concat "MIME-Version: 1.0 (split by " mime-edit-version-string ")\n")
+  (concat "MIME-Version:"
+         (mime-encode-field-body
+          (concat " 1.0 (split by " mime-edit-version ")\n")
+          "MIME-Version"))
   "MIME version field for message/partial.")
 
 
@@ -634,65 +712,63 @@ Tspecials means any character that matches with it in header must be quoted.")
 (defvar mime-edit-mode-flag nil)
 (make-variable-buffer-local 'mime-edit-mode-flag)
 
+(defvar mime-edit-mode-entity-prefix "\C-c\C-x"
+  "Keymap prefix for MIME-Edit mode commands to insert entity or set status.")
+(defvar mime-edit-mode-entity-map (make-sparse-keymap)
+  "Keymap for MIME-Edit mode commands to insert entity or set status.")
+
+(define-key mime-edit-mode-entity-map "\C-t" 'mime-edit-insert-text)
+(define-key mime-edit-mode-entity-map "\C-i" 'mime-edit-insert-file)
+(define-key mime-edit-mode-entity-map "\C-e" 'mime-edit-insert-external)
+(define-key mime-edit-mode-entity-map "\C-v" 'mime-edit-insert-voice)
+(define-key mime-edit-mode-entity-map "\C-y" 'mime-edit-insert-message)
+(define-key mime-edit-mode-entity-map "\C-m" 'mime-edit-insert-mail)
+(define-key mime-edit-mode-entity-map "\C-w" 'mime-edit-insert-signature)
+(define-key mime-edit-mode-entity-map "\C-s" 'mime-edit-insert-signature)
+(define-key mime-edit-mode-entity-map "\C-k" 'mime-edit-insert-key)
+(define-key mime-edit-mode-entity-map "t"    'mime-edit-insert-tag)
+
+(define-key mime-edit-mode-entity-map "7" 'mime-edit-set-transfer-level-7bit)
+(define-key mime-edit-mode-entity-map "8" 'mime-edit-set-transfer-level-8bit)
+(define-key mime-edit-mode-entity-map "/" 'mime-edit-set-split)
+(define-key mime-edit-mode-entity-map "s" 'mime-edit-set-sign)
+(define-key mime-edit-mode-entity-map "v" 'mime-edit-set-sign)
+(define-key mime-edit-mode-entity-map "e" 'mime-edit-set-encrypt)
+(define-key mime-edit-mode-entity-map "h" 'mime-edit-set-encrypt)
+(define-key mime-edit-mode-entity-map "p" 'mime-edit-preview-message)
+(define-key mime-edit-mode-entity-map "\C-z" 'mime-edit-exit)
+(define-key mime-edit-mode-entity-map "?" 'mime-edit-help)
+
+(defvar mime-edit-mode-enclosure-prefix "\C-c\C-m"
+  "Keymap prefix for MIME-Edit mode commands about enclosure.")
+(defvar mime-edit-mode-enclosure-map (make-sparse-keymap)
+  "Keymap for MIME-Edit mode commands about enclosure.")
+
+(define-key mime-edit-mode-enclosure-map
+  "\C-a" 'mime-edit-enclose-alternative-region)
+(define-key mime-edit-mode-enclosure-map
+  "\C-p" 'mime-edit-enclose-parallel-region)
+(define-key mime-edit-mode-enclosure-map
+  "\C-m" 'mime-edit-enclose-mixed-region)
+(define-key mime-edit-mode-enclosure-map
+  "\C-d" 'mime-edit-enclose-digest-region)
+(define-key mime-edit-mode-enclosure-map
+  "\C-s" 'mime-edit-enclose-pgp-signed-region)
+(define-key mime-edit-mode-enclosure-map
+  "\C-e" 'mime-edit-enclose-pgp-encrypted-region)
+(define-key mime-edit-mode-enclosure-map
+  "s" 'mime-edit-enclose-smime-signed-region)
+(define-key mime-edit-mode-enclosure-map
+  "e" 'mime-edit-enclose-smime-encrypted-region)
+(define-key mime-edit-mode-enclosure-map
+  "\C-q" 'mime-edit-enclose-quote-region)
+
 (defvar mime-edit-mode-map (make-sparse-keymap)
   "Keymap for MIME-Edit mode commands.")
-
-(define-key mime-edit-mode-map
-  "\C-c\C-x\C-t"       'mime-edit-insert-text)
-(define-key mime-edit-mode-map
-  "\C-c\C-x\C-i"       'mime-edit-insert-file)
 (define-key mime-edit-mode-map
-  "\C-c\C-x\C-e"       'mime-edit-insert-external)
+  mime-edit-mode-entity-prefix mime-edit-mode-entity-map)
 (define-key mime-edit-mode-map
-  "\C-c\C-x\C-v"       'mime-edit-insert-voice)
-(define-key mime-edit-mode-map
-  "\C-c\C-x\C-y"       'mime-edit-insert-message)
-(define-key mime-edit-mode-map
-  "\C-c\C-x\C-m"       'mime-edit-insert-mail)
-(define-key mime-edit-mode-map
-  "\C-c\C-x\C-w"       'mime-edit-insert-signature)
-(define-key mime-edit-mode-map
-  "\C-c\C-x\C-s"       'mime-edit-insert-signature)
-(define-key mime-edit-mode-map
-  "\C-c\C-x\C-k"       'mime-edit-insert-key)
-(define-key mime-edit-mode-map
-  "\C-c\C-xt"          'mime-edit-insert-tag)
-
-(define-key mime-edit-mode-map
-  "\C-c\C-m\C-a"       'mime-edit-enclose-alternative-region)
-(define-key mime-edit-mode-map
-  "\C-c\C-m\C-p"       'mime-edit-enclose-parallel-region)
-(define-key mime-edit-mode-map
-  "\C-c\C-m\C-m"       'mime-edit-enclose-mixed-region)
-(define-key mime-edit-mode-map
-  "\C-c\C-m\C-d"       'mime-edit-enclose-digest-region)
-(define-key mime-edit-mode-map
-  "\C-c\C-m\C-s"       'mime-edit-enclose-signed-region)
-(define-key mime-edit-mode-map
-  "\C-c\C-m\C-e"       'mime-edit-enclose-encrypted-region)
-(define-key mime-edit-mode-map
-  "\C-c\C-m\C-q"       'mime-edit-enclose-quote-region)
-
-(define-key mime-edit-mode-map
-  "\C-c\C-x7"          'mime-edit-set-transfer-level-7bit)
-(define-key mime-edit-mode-map
-  "\C-c\C-x8"          'mime-edit-set-transfer-level-8bit)
-(define-key mime-edit-mode-map
-  "\C-c\C-x/"          'mime-edit-set-split)
-(define-key mime-edit-mode-map
-  "\C-c\C-xs"          'mime-edit-set-sign)
-(define-key mime-edit-mode-map
-  "\C-c\C-xv"          'mime-edit-set-sign)
-(define-key mime-edit-mode-map
-  "\C-c\C-xe"          'mime-edit-set-encrypt)
-(define-key mime-edit-mode-map
-  "\C-c\C-xh"          'mime-edit-set-encrypt)
-(define-key mime-edit-mode-map
-  "\C-c\C-x\C-p"       'mime-edit-preview-message)
-(define-key mime-edit-mode-map
-  "\C-c\C-x\C-z"       'mime-edit-exit)
-(define-key mime-edit-mode-map
-  "\C-c\C-x?"          'mime-edit-help)
+  mime-edit-mode-enclosure-prefix mime-edit-mode-enclosure-map)
 
 (defconst mime-edit-menu-title "MIME-Edit")
 
@@ -711,23 +787,22 @@ Tspecials means any character that matches with it in header must be quoted.")
     (parallel  "Enclose as parallel"   mime-edit-enclose-parallel-region)
     (mixed     "Enclose as serial"     mime-edit-enclose-mixed-region)
     (digest    "Enclose as digest"     mime-edit-enclose-digest-region)
-    (signed    "Enclose as signed"     mime-edit-enclose-signed-region)
-    (encrypted "Enclose as encrypted"  mime-edit-enclose-encrypted-region)
+    (signed    "Enclose as signed"     mime-edit-enclose-pgp-signed-region)
+    (encrypted "Enclose as encrypted"  mime-edit-enclose-pgp-encrypted-region)
     (quote     "Verbatim region"       mime-edit-enclose-quote-region)
     (key       "Insert Public Key"     mime-edit-insert-key)
-    (split     "About split"           mime-edit-set-split)
-    (sign      "About sign"            mime-edit-set-sign)
-    (encrypt   "About encryption"      mime-edit-set-encrypt)
+    (split     "Set splitting"         mime-edit-set-split)
+    (sign      "PGP sign"              mime-edit-set-sign)
+    (encrypt   "PGP encrypt"           mime-edit-set-encrypt)
     (preview   "Preview Message"       mime-edit-preview-message)
-    (level     "Toggle transfer-level" mime-edit-toggle-transfer-level)
-    )
+    (level     "Toggle transfer-level" mime-edit-toggle-transfer-level))
   "MIME-edit menubar entry.")
 
-(cond (running-xemacs
+(cond ((featurep 'xemacs)
        ;; modified by Pekka Marjola <pema@iki.fi>
        ;;      1995/9/5 (c.f. [tm-en:69])
        (defun mime-edit-define-menu-for-xemacs ()
-        "Define menu for Emacs 19."
+        "Define menu for XEmacs."
         (cond ((featurep 'menubar)
                (make-local-variable 'current-menubar)
                (set-buffer-menubar current-menubar)
@@ -737,10 +812,8 @@ Tspecials means any character that matches with it in header must be quoted.")
                       (mapcar (function
                                (lambda (item)
                                  (vector (nth 1 item)(nth 2 item)
-                                         mime-edit-mode-flag)
-                                 ))
-                              mime-edit-menu-list)))
-               )))
+                                         mime-edit-mode-flag)))
+                              mime-edit-menu-list))))))
 
        ;; modified by Steven L. Baur <steve@miranova.com>
        ;;      1995/12/6 (c.f. [tm-en:209])
@@ -751,9 +824,7 @@ Tspecials means any character that matches with it in header must be quoted.")
                                             (vector (nth 1 item)
                                                     (nth 2 item)
                                                     t)))
-                                mime-edit-menu-list)))
-          )
-       )
+                                mime-edit-menu-list)))))
       ((>= emacs-major-version 19)
        (define-key mime-edit-mode-map [menu-bar mime-edit]
         (cons mime-edit-menu-title
@@ -762,17 +833,15 @@ Tspecials means any character that matches with it in header must be quoted.")
                (lambda (item)
                  (define-key mime-edit-mode-map
                    (vector 'menu-bar 'mime-edit (car item))
-                   (cons (nth 1 item)(nth 2 item))
-                   )
-                 ))
-              (reverse mime-edit-menu-list)
-              )
-       ))
+                   (cons (nth 1 item)(nth 2 item)))))
+              (reverse mime-edit-menu-list))))
 
 
 ;;; @ functions
 ;;;
 
+(defvar mime-edit-touched-flag nil)
+
 ;;;###autoload
 (defun mime-edit-mode ()
   "MIME minor mode for editing the tagged MIME message.
@@ -828,24 +897,27 @@ Following commands are available in addition to major mode commands:
 \\[mime-edit-insert-tag]       insert a new MIME tag.
 
 \[make enclosure (maybe multipart)\]
-\\[mime-edit-enclose-alternative-region]       enclose as multipart/alternative.
-\\[mime-edit-enclose-parallel-region]  enclose as multipart/parallel.
-\\[mime-edit-enclose-mixed-region]     enclose as multipart/mixed.
-\\[mime-edit-enclose-digest-region]    enclose as multipart/digest.
-\\[mime-edit-enclose-signed-region]    enclose as PGP signed.
-\\[mime-edit-enclose-encrypted-region] enclose as PGP encrypted.
-\\[mime-edit-enclose-quote-region]     enclose as verbose mode (to avoid to expand tags)
+\\[mime-edit-enclose-alternative-region]   enclose as multipart/alternative.
+\\[mime-edit-enclose-parallel-region]     enclose as multipart/parallel.
+\\[mime-edit-enclose-mixed-region]        enclose as multipart/mixed.
+\\[mime-edit-enclose-digest-region]       enclose as multipart/digest.
+\\[mime-edit-enclose-pgp-signed-region]           enclose as PGP signed.
+\\[mime-edit-enclose-pgp-encrypted-region] enclose as PGP encrypted.
+\\[mime-edit-enclose-quote-region]        enclose as verbose mode
+                                          (to avoid to expand tags)
 
 \[other commands\]
 \\[mime-edit-set-transfer-level-7bit]  set transfer-level as 7.
 \\[mime-edit-set-transfer-level-8bit]  set transfer-level as 8.
-\\[mime-edit-set-split]        set message splitting mode.
-\\[mime-edit-set-sign] set PGP-sign mode.
-\\[mime-edit-set-encrypt]      set PGP-encryption mode.
-\\[mime-edit-preview-message]  preview editing MIME message.
-\\[mime-edit-exit]     exit and translate into a MIME compliant message.
-\\[mime-edit-help]     show this help.
-\\[mime-edit-maybe-translate]  exit and translate if in MIME mode, then split.
+\\[mime-edit-set-split]                        set message splitting mode.
+\\[mime-edit-set-sign]                 set PGP-sign mode.
+\\[mime-edit-set-encrypt]              set PGP-encryption mode.
+\\[mime-edit-preview-message]          preview editing MIME message.
+\\[mime-edit-exit]                     exit and translate into a MIME
+                                       compliant message.
+\\[mime-edit-help]                     show this help.
+\\[mime-edit-maybe-translate]          exit and translate if in MIME mode,
+                                       then split.
 
 Additional commands are available in some major modes:
 C-c C-c                exit, translate and run the original command.
@@ -908,30 +980,26 @@ User customizable variables (not documented all of them):
   (interactive)
   (if mime-edit-mode-flag
       (mime-edit-exit)
-    (if (and (boundp 'mime-edit-touched-flag)
-            mime-edit-touched-flag)
+    (if mime-edit-touched-flag
        (mime-edit-again)
       (make-local-variable 'mime-edit-touched-flag)
       (setq mime-edit-touched-flag t)
-      (turn-on-mime-edit)
-      )))
+      (turn-on-mime-edit))))
 
 
-(cond (running-xemacs
+(cond ((featurep 'xemacs)
        (add-minor-mode 'mime-edit-mode-flag
                       '((" MIME-Edit "  mime-transfer-level-string))
                       mime-edit-mode-map
                       nil
-                      'mime-edit-mode)
-       )
+                      'mime-edit-mode))
       (t
        (set-alist 'minor-mode-alist
                  'mime-edit-mode-flag
                  '((" MIME-Edit "  mime-transfer-level-string)))
        (set-alist 'minor-mode-map-alist
                  'mime-edit-mode-flag
-                 mime-edit-mode-map)
-       ))
+                 mime-edit-mode-map)))
 
 
 ;;;###autoload
@@ -949,11 +1017,8 @@ User customizable variables (not documented all of them):
     (force-mode-line-update)
 
     ;; Define menu for XEmacs.
-    (if running-xemacs
-       (mime-edit-define-menu-for-xemacs)
-      )
-
-    (enable-invisible)
+    (if (featurep 'xemacs)
+       (mime-edit-define-menu-for-xemacs))
 
     ;; I don't care about saving these.
     (setq paragraph-start
@@ -964,9 +1029,9 @@ User customizable variables (not documented all of them):
                     paragraph-separate))
     (run-hooks 'mime-edit-mode-hook)
     (message
+     "%s"
      (substitute-command-keys
-      "Type \\[mime-edit-exit] to exit MIME mode, and type \\[mime-edit-help] to get help."))
-    ))
+      "Type \\[mime-edit-exit] to exit MIME mode, and type \\[mime-edit-help] to get help."))))
 
 ;;;###autoload
 (defalias 'edit-mime 'turn-on-mime-edit) ; for convenience
@@ -979,29 +1044,24 @@ just return to previous mode."
   (interactive "P")
   (if (not mime-edit-mode-flag)
       (if (null no-error)
-         (error "You aren't editing a MIME message.")
-       )
+         (error "You aren't editing a MIME message."))
     (if (not nomime)
        (progn
          (run-hooks 'mime-edit-translate-hook)
          (mime-edit-translate-buffer)))
     ;; Restore previous state.
     (setq mime-edit-mode-flag nil)
-    (if (and running-xemacs
+    (if (and (featurep 'xemacs)
             (featurep 'menubar))
-       (delete-menu-item (list mime-edit-menu-title))
-      )
-    (end-of-invisible)
+       (delete-menu-item (list mime-edit-menu-title)))
     (set-buffer-modified-p (buffer-modified-p))
     (run-hooks 'mime-edit-exit-hook)
-    (message "Exit MIME editor mode.")
-    ))
+    (message "Exit MIME editor mode.")))
 
 (defun mime-edit-maybe-translate ()
   (interactive)
   (mime-edit-exit nil t)
-  (call-interactively 'mime-edit-maybe-split-and-send)
-  )
+  (call-interactively 'mime-edit-maybe-split-and-send))
 
 (defun mime-edit-help ()
   "Show help message about MIME mode."
@@ -1022,16 +1082,12 @@ If optional argument SUBTYPE is not nil, text/SUBTYPE tag is inserted."
          (progn
            ;; Make a space between the following message.
            (insert "\n")
-           (forward-char -1)
-           ))
-      (if (and (member (cadr ret) '("enriched" "richtext"))
-              (fboundp 'enriched-mode)
-              )
+           (forward-char -1)))
+      (if (and (member (cadr ret) '("enriched"))
+              (fboundp 'enriched-mode))
          (enriched-mode t)
        (if (boundp 'enriched-mode)
-           (enriched-mode -1)
-         ))
-      )))
+           (enriched-mode -1))))))
 
 (defun mime-edit-insert-file (file &optional verbose)
   "Insert a message from a file."
@@ -1042,15 +1098,12 @@ If optional argument SUBTYPE is not nil, text/SUBTYPE tag is inserted."
          (parameters (nth 2 guess))
          (encoding (nth 3 guess))
          (disposition-type (nth 4 guess))
-         (disposition-params (nth 5 guess))
-         )
+         (disposition-params (nth 5 guess)))
     (if verbose
        (setq type    (mime-prompt-for-type type)
-             subtype (mime-prompt-for-subtype type subtype)
-             ))
+             subtype (mime-prompt-for-subtype type subtype)))
     (if (or (interactive-p) verbose)
-       (setq encoding (mime-prompt-for-encoding encoding))
-      )
+       (setq encoding (mime-prompt-for-encoding encoding)))
     (if (or (consp parameters) (stringp disposition-type))
        (let ((rest parameters) cell attribute value)
          (setq parameters "")
@@ -1060,11 +1113,9 @@ If optional argument SUBTYPE is not nil, text/SUBTYPE tag is inserted."
            (setq value (cdr cell))
            (if (eq value 'file)
                (setq value (std11-wrap-as-quoted-string
-                            (file-name-nondirectory file)))
-             )
+                            (file-name-nondirectory file))))
            (setq parameters (concat parameters "; " attribute "=" value))
-           (setq rest (cdr rest))
-           )
+           (setq rest (cdr rest)))
          (if disposition-type
              (progn
                (setq parameters
@@ -1077,17 +1128,12 @@ If optional argument SUBTYPE is not nil, text/SUBTYPE tag is inserted."
                  (setq value (cdr cell))
                  (if (eq value 'file)
                      (setq value (std11-wrap-as-quoted-string
-                                  (file-name-nondirectory file)))
-                   )
+                                  (file-name-nondirectory file))))
                  (setq parameters
                        (concat parameters "; " attribute "=" value))
-                 (setq rest (cdr rest))
-                 )
-               ))
-         ))
+                 (setq rest (cdr rest)))))))
     (mime-edit-insert-tag type subtype parameters)
-    (mime-edit-insert-binary-file file encoding)
-    ))
+    (mime-edit-insert-binary-file file encoding)))
 
 (defun mime-edit-insert-external ()
   "Insert a reference to external body."
@@ -1113,18 +1159,18 @@ If optional argument SUBTYPE is not nil, text/SUBTYPE tag is inserted."
   (let ((encoding
         (completing-read
          "What transfer encoding: "
-         mime-file-encoding-method-alist nil t nil)))
+         (mime-encoding-alist) nil t nil)))
     (mime-edit-insert-tag "audio" "basic" nil)
     (mime-edit-define-encoding encoding)
     (save-restriction
-      (narrow-to-region (1- (point))(point))
+      (narrow-to-region (point)(point))
       (unwind-protect
          (funcall mime-edit-voice-recorder encoding)
        (progn
          (insert "\n")
-         (invisible-region (point-min)(point-max))
-         (goto-char (point-max))
-         )))))
+         (add-text-properties
+          (point-min)(point-max) '(invisible t mime-edit-invisible t))
+         (goto-char (point-max)))))))
 
 (defun mime-edit-insert-signature (&optional arg)
   "Insert a signature file."
@@ -1134,11 +1180,8 @@ If optional argument SUBTYPE is not nil, text/SUBTYPE tag is inserted."
           (lambda ()
            (let ((items (mime-find-file-type signature-file-name)))
              (apply (function mime-edit-insert-tag)
-                    (car items) (cadr items) (list (caddr items))))
-            )))
-        )
-    (insert-signature arg)
-    ))
+                    (car items) (cadr items) (list (caddr items))))))))
+    (insert-signature arg)))
 
 \f
 ;; Insert a new tag around a point.
@@ -1151,15 +1194,12 @@ If nothing is inserted, return nil."
     (mime-edit-goto-tag)
     (if (and (re-search-forward mime-edit-tag-regexp nil t)
             (< (match-beginning 0) p)
-            (< p (match-end 0))
-            )
+            (< p (match-end 0)))
        (goto-char (match-beginning 0))
-      (goto-char p)
-      ))
+      (goto-char p)))
   (let ((oldtag nil)
        (newtag nil)
-       (current (point))
-       )
+       (current (point)))
     (setq pritype
          (or pritype
              (mime-prompt-for-type)))
@@ -1177,8 +1217,7 @@ If nothing is inserted, return nil."
            (if (mime-edit-goto-tag)
                (buffer-substring (match-beginning 0) (match-end 0))
              ;; Assume content type is 'text/plan'.
-             (mime-make-tag "text" "plain")
-             )))
+             (mime-make-tag "text" "plain"))))
     ;; We are only interested in TEXT.
     (if (and oldtag
             (not (mime-test-content-type
@@ -1197,8 +1236,7 @@ If nothing is inserted, return nil."
       ;; Restore previous point.
       (goto-char current)
       nil                              ;Nothing is created.
-      )
-    ))
+      )))
 
 (defun mime-edit-insert-binary-file (file &optional encoding)
   "Insert binary FILE at point.
@@ -1210,31 +1248,23 @@ Optional argument ENCODING specifies an encoding method such as base64."
                       (let ((en (downcase encoding)))
                         (or (string-equal en "7bit")
                             (string-equal en "8bit")
-                            (string-equal en "binary")
-                            )))))
-        )
+                            (string-equal en "binary")))))))
     (save-restriction
-      (narrow-to-region tagend (point))
+      (narrow-to-region (point)(point))
       (mime-insert-encoded-file file encoding)
       (if hide-p
-         (progn
-           (invisible-region (point-min) (point-max))
-           (goto-char (point-max))
-           )
-       (goto-char (point-max))
-       ))
+         (add-text-properties
+          (point-min)(point-max) '(invisible t mime-edit-invisible t)))
+      (goto-char (point-max)))
     (or hide-p
        (looking-at mime-edit-tag-regexp)
        (= (point)(point-max))
-       (mime-edit-insert-tag "text" "plain")
-       )
+       (mime-edit-insert-tag "text" "plain"))
     ;; Define encoding even if it is 7bit.
     (if (stringp encoding)
        (save-excursion
          (goto-char tagend) ; Make sure which line the tag is on.
-         (mime-edit-define-encoding encoding)
-         ))
-    ))
+         (mime-edit-define-encoding encoding)))))
 
 \f
 ;; Commands work on a current message flagment.
@@ -1249,17 +1279,14 @@ Optional argument ENCODING specifies an encoding method such as base64."
             (goto-char (1- (match-beginning 0))) ;For multiline tag
             )
            (t
-            (goto-char (point-max))
-            ))
+            (goto-char (point-max))))
       ;; Then search for the beginning.
       (re-search-backward mime-edit-end-tag-regexp nil t)
       (or (looking-at mime-edit-beginning-tag-regexp)
          ;; Restore previous point.
          (progn
            (goto-char current)
-           nil
-           ))
-      )))
+           nil)))))
 
 (defun mime-edit-content-beginning ()
   "Return the point of the beginning of content."
@@ -1280,31 +1307,28 @@ Optional argument ENCODING specifies an encoding method such as base64."
         (concat "\n" (regexp-quote mail-header-separator)
                 (if mime-ignore-preceding-spaces
                     "[ \t\n]*\n" "\n")) nil 'move)
-       (point))
-      )))
+       (point)))))
 
 (defun mime-edit-content-end ()
   "Return the point of the end of content."
   (save-excursion
     (if (mime-edit-goto-tag)
        (progn
-         (goto-char (match-end 0))
-         (if (invisible-p (point))
-             (next-visible-point (point))
+         (goto-char (1+ (match-end 0)))
+         (if (get-text-property (point) 'mime-edit-invisible)
+             (or (next-single-property-change (point) 'mime-edit-invisible)
+                 (point-max))
            ;; Move to the end of this text.
            (if (re-search-forward mime-edit-tag-regexp nil 'move)
                ;; Don't forget a multiline tag.
-               (goto-char (match-beginning 0))
-             )
-           (point)
-           ))
+               (goto-char (match-beginning 0)))
+           (point)))
       ;; Assume the message begins with text/plain.
       (goto-char (mime-edit-content-beginning))
       (if (re-search-forward mime-edit-tag-regexp nil 'move)
          ;; Don't forget a multiline tag.
          (goto-char (match-beginning 0)))
-      (point))
-    ))
+      (point))))
 
 (defun mime-edit-define-charset (charset)
   "Set charset of current tag to CHARSET."
@@ -1316,9 +1340,12 @@ Optional argument ENCODING specifies an encoding method such as base64."
           (mime-create-tag
            (mime-edit-set-parameter
             (mime-edit-get-contype tag)
-            "charset" (upcase (symbol-name charset)))
-           (mime-edit-get-encoding tag)))
-         ))))
+            "charset"
+            (let ((comment (get charset 'mime-charset-comment)))
+              (if comment
+                  (concat (upcase (symbol-name charset)) " (" comment ")")
+                (upcase (symbol-name charset)))))
+           (mime-edit-get-encoding tag)))))))
 
 (defun mime-edit-define-encoding (encoding)
   "Set encoding of current tag to ENCODING."
@@ -1326,13 +1353,11 @@ Optional argument ENCODING specifies an encoding method such as base64."
     (if (mime-edit-goto-tag)
        (let ((tag (buffer-substring (match-beginning 0) (match-end 0))))
          (delete-region (match-beginning 0) (match-end 0))
-         (insert (mime-create-tag (mime-edit-get-contype tag) encoding)))
-      )))
+         (insert (mime-create-tag (mime-edit-get-contype tag) encoding))))))
 
 (defun mime-edit-choose-charset ()
   "Choose charset of a text following current point."
-  (detect-mime-charset-region (point) (mime-edit-content-end))
-  )
+  (detect-mime-charset-region (point) (mime-edit-content-end)))
 
 (defun mime-make-text-tag (&optional subtype)
   "Make a tag for a text after current point.
@@ -1363,10 +1388,8 @@ Otherwise, it is obtained from mime-content-types."
   (and (stringp tag)
        (or (string-match mime-edit-single-part-tag-regexp tag)
           (string-match mime-edit-multipart-beginning-regexp tag)
-          (string-match mime-edit-multipart-end-regexp tag)
-          )
-       (substring tag (match-beginning 1) (match-end 1))
-       ))
+          (string-match mime-edit-multipart-end-regexp tag))
+       (substring tag (match-beginning 1) (match-end 1))))
 
 (defun mime-edit-get-encoding (tag)
   "Return encoding of TAG."
@@ -1395,8 +1418,7 @@ Nil if no such parameter."
     (if (string-match "\n[^ \t\n\r]+:" contype)
        (setq ctype (substring contype 0 (match-beginning 0))
              opt-fields (substring contype (match-beginning 0)))
-      (setq ctype contype)
-      )
+      (setq ctype contype))
     (if (string-match
         (concat
          ";[ \t\n]*\\("
@@ -1406,7 +1428,7 @@ Nil if no such parameter."
        ;; Change value
        (concat (substring ctype 0 (match-beginning 1))
                parameter "=" value
-               (substring contype (match-end 1))
+               (substring ctype (match-end 1))
                opt-fields)
       (concat ctype "; " parameter "=" value opt-fields)
       )))
@@ -1435,8 +1457,7 @@ Nil if no such parameter."
       (if (string-match (car (car guesses)) file)
          (setq guess (cdr (car guesses))))
       (setq guesses (cdr guesses)))
-    guess
-    ))
+    guess))
 
 (defun mime-prompt-for-type (&optional default)
   "Ask for Content-type."
@@ -1448,15 +1469,12 @@ Nil if no such parameter."
                             mime-content-types
                             nil
                             'require-match ;Type must be specified.
-                            default
-                            ))
+                            default))
       (if (string-equal type "")
          (progn
            (message "Content type is required.")
            (beep)
-           (sit-for 1)
-           ))
-      )
+           (sit-for 1))))
     type))
 
 (defun mime-prompt-for-subtype (type &optional default)
@@ -1464,8 +1482,7 @@ Nil if no such parameter."
   (let ((subtypes (cdr (assoc type mime-content-types))))
     (or (and default
             (assoc default subtypes))
-       (setq default (car (car subtypes)))
-       ))
+       (setq default (car (car subtypes)))))
   (let* ((answer
          (completing-read
           (if default
@@ -1475,8 +1492,7 @@ Nil if no such parameter."
           (cdr (assoc type mime-content-types))
           nil
           'require-match               ;Subtype must be specified.
-          nil
-          )))
+          nil)))
     (if (string-equal answer "") default answer)))
 
 (defun mime-prompt-for-parameters (pritype subtype &optional delimiter)
@@ -1490,8 +1506,7 @@ Optional DELIMITER specifies parameter delimiter (';' by default)."
                 (mime-prompt-for-parameters-1
                  (cdr (assoc subtype
                              (cdr (assoc pritype mime-content-types))))))
-          delimiter
-          )))
+          delimiter)))
     (if (and (stringp parameters)
             (not (string-equal parameters "")))
        (concat delimiter parameters)
@@ -1504,7 +1519,7 @@ Optional DELIMITER specifies parameter delimiter (';' by default)."
 
 (defun mime-prompt-for-parameter (parameter)
   "Ask for PARAMETER.
-Parameter must be '(PROMPT CHOICE1 (CHOISE2 ...))."
+Parameter must be '(PROMPT CHOICE1 (CHOICE2...))."
   (let* ((prompt (car parameter))
         (choices (mapcar (function
                           (lambda (e)
@@ -1532,8 +1547,7 @@ Parameter must be '(PROMPT CHOICE1 (CHOISE2 ...))."
                      ;; Note: control characters ignored!
                      (if (string-match mime-tspecials-regexp answer)
                          (concat "\"" answer "\"") answer)))
-         (mime-prompt-for-parameters-1 (cdr (assoc answer (cdr parameter)))))
-    ))
+         (mime-prompt-for-parameters-1 (cdr (assoc answer (cdr parameter)))))))
 
 (defun mime-prompt-for-encoding (default)
   "Ask for Content-Transfer-Encoding."
@@ -1542,8 +1556,7 @@ Parameter must be '(PROMPT CHOICE1 (CHOISE2 ...))."
            (setq encoding
                  (completing-read
                   "What transfer encoding: "
-                  mime-file-encoding-method-alist nil t default)
-                 )
+                  (mime-encoding-alist) nil t default))
            ""))
     encoding))
 
@@ -1558,21 +1571,19 @@ Parameter must be '(PROMPT CHOICE1 (CHOISE2 ...))."
 
 (defun mime-edit-translate-header ()
   "Encode the message header into network representation."
-  (eword-encode-header 'code-conversion)
-  (run-hooks 'mime-edit-translate-header-hook)
-  )
+  (mime-encode-header-in-buffer 'code-conversion)
+  (run-hooks 'mime-edit-translate-header-hook))
 
 (defun mime-edit-translate-buffer ()
   "Encode the tagged MIME message in current buffer in MIME compliant message."
   (interactive)
+  (undo-boundary)
   (if (catch 'mime-edit-error
        (save-excursion
-         (run-hooks 'mime-edit-translate-buffer-hook)
-         ))
+         (run-hooks 'mime-edit-translate-buffer-hook)))
       (progn
        (undo)
-       (error "Translation error!")
-       )))
+       (error "Translation error!"))))
 
 (defun mime-edit-find-inmost ()
   (goto-char (point-min))
@@ -1580,35 +1591,27 @@ Parameter must be '(PROMPT CHOICE1 (CHOISE2 ...))."
       (let ((bb (match-beginning 0))
            (be (match-end 0))
            (type (buffer-substring (match-beginning 1)(match-end 1)))
-           end-exp eb ee)
+           end-exp eb)
        (setq end-exp (format "--}-<<%s>>\n" type))
        (widen)
        (if (re-search-forward end-exp nil t)
-           (progn
-             (setq eb (match-beginning 0))
-             (setq ee (match-end 0))
-             )
-         (setq eb (point-max))
-         (setq ee (point-max))
-         )
+           (setq eb (match-beginning 0))
+         (setq eb (point-max)))
        (narrow-to-region be eb)
        (goto-char be)
        (if (re-search-forward mime-edit-multipart-beginning-regexp nil t)
-           (let (ret)
+           (progn
              (narrow-to-region (match-beginning 0)(point-max))
-             (mime-edit-find-inmost)
-             )
+             (mime-edit-find-inmost))
          (widen)
-         (list type bb be eb)
-         ))))
+         (list type bb be eb)))))
 
 (defun mime-edit-process-multipart-1 (boundary)
   (let ((ret (mime-edit-find-inmost)))
     (if ret
        (let ((type (car ret))
              (bb (nth 1 ret))(be (nth 2 ret))
-             (eb (nth 3 ret))
-             )
+             (eb (nth 3 ret)))
          (narrow-to-region bb eb)
          (delete-region bb be)
          (setq bb (point-min))
@@ -1617,31 +1620,22 @@ Parameter must be '(PROMPT CHOICE1 (CHOISE2 ...))."
          (goto-char eb)
          (if (looking-at mime-edit-multipart-end-regexp)
              (let ((beg (match-beginning 0))
-                   (end (match-end 0))
-                   )
+                   (end (match-end 0)))
                (delete-region beg end)
                (or (looking-at mime-edit-beginning-tag-regexp)
+                   (looking-at mime-edit-multipart-end-regexp)
                    (eobp)
-                   (insert (concat (mime-make-text-tag) "\n"))
-                   )))
+                   (insert (concat (mime-make-text-tag) "\n")))))
          (cond ((string-equal type "quote")
-                (mime-edit-enquote-region bb eb)
-                )
-               ((string-equal type "signed")
-                (cond ((eq mime-edit-signing-type 'pgp-elkins)
-                       (mime-edit-sign-pgp-elkins bb eb boundary)
-                       )
-                      ((eq mime-edit-signing-type 'pgp-kazu)
-                       (mime-edit-sign-pgp-kazu bb eb boundary)
-                       ))
-                )
-               ((string-equal type "encrypted")
-                (cond ((eq mime-edit-encrypting-type 'pgp-elkins)
-                       (mime-edit-encrypt-pgp-elkins bb eb boundary)
-                       )
-                      ((eq mime-edit-encrypting-type 'pgp-kazu)
-                       (mime-edit-encrypt-pgp-kazu bb eb boundary)
-                       )))
+                (mime-edit-enquote-region bb eb))
+               ((string-equal type "pgp-signed")
+                (mime-edit-sign-pgp-mime bb eb boundary))
+               ((string-equal type "pgp-encrypted")
+                (mime-edit-encrypt-pgp-mime bb eb boundary))
+               ((string-equal type "smime-signed")
+                (mime-edit-sign-smime bb eb boundary))
+               ((string-equal type "smime-encrypted")
+                (mime-edit-encrypt-smime bb eb boundary))
                (t
                 (setq boundary
                       (nth 2 (mime-edit-translate-region bb eb
@@ -1650,8 +1644,7 @@ Parameter must be '(PROMPT CHOICE1 (CHOISE2 ...))."
                 (insert
                  (format "--[[multipart/%s;
  boundary=\"%s\"][7bit]]\n"
-                         type boundary))
-                ))
+                         type boundary))))
          boundary))))
 
 (defun mime-edit-enquote-region (beg end)
@@ -1661,8 +1654,7 @@ Parameter must be '(PROMPT CHOICE1 (CHOISE2 ...))."
       (goto-char beg)
       (while (re-search-forward mime-edit-single-part-tag-regexp nil t)
        (let ((tag (buffer-substring (match-beginning 0)(match-end 0))))
-         (replace-match (concat "- " (substring tag 1)))
-         )))))
+         (replace-match (concat "- " (substring tag 1))))))))
 
 (defun mime-edit-dequote-region (beg end)
   (save-excursion
@@ -1672,32 +1664,92 @@ Parameter must be '(PROMPT CHOICE1 (CHOISE2 ...))."
       (while (re-search-forward
              mime-edit-quoted-single-part-tag-regexp nil t)
        (let ((tag (buffer-substring (match-beginning 0)(match-end 0))))
-         (replace-match (concat "-" (substring tag 2)))
-         )))))
+         (replace-match (concat "-" (substring tag 2))))))))
+
+(defvar mime-edit-pgp-user-id nil)
+
+(defun mime-edit-delete-trailing-whitespace ()
+  (save-match-data
+    (save-excursion
+      (goto-char (point-min))
+      (while (re-search-forward "[ \t]+$" nil t)
+       (delete-region (match-beginning 0) (match-end 0))))))
 
-(defun mime-edit-sign-pgp-elkins (beg end boundary)
+(defun mime-edit-sign-pgp-mime (beg end boundary)
   (save-excursion
     (save-restriction
-      (narrow-to-region beg end)
-      (let* ((ret
-             (mime-edit-translate-region beg end boundary))
+      (let* ((from (std11-field-body "From" mail-header-separator))
+            (ret (progn 
+                   (narrow-to-region beg end)
+                   (mime-edit-translate-region beg end boundary)))
             (ctype    (car ret))
             (encoding (nth 1 ret))
-            (parts    (nth 3 ret))
             (pgp-boundary (concat "pgp-sign-" boundary))
-            )
+            (context (epg-make-context))
+            (index 0)
+            plain signature micalg)
+       (mime-edit-delete-trailing-whitespace) ; RFC3156
        (goto-char beg)
        (insert (format "Content-Type: %s\n" ctype))
        (if encoding
-           (insert (format "Content-Transfer-Encoding: %s\n" encoding))
-         )
+           (insert (format "Content-Transfer-Encoding: %s\n" encoding)))
        (insert "\n")
-       (or (as-binary-process
-            (funcall (pgp-function 'mime-sign)
-                     (point-min)(point-max) nil nil pgp-boundary))
-           (throw 'mime-edit-error 'pgp-error)
-           )
-       ))))
+       (epg-context-set-armor context t)
+       (epg-context-set-textmode context nil)
+       (if mime-edit-pgp-verbose
+           (epg-context-set-signers
+            context
+            (epa-select-keys
+             context
+             "\
+Select keys for signing.
+If no one is selected, default secret key is used.  "
+             (if from
+                 (cons (nth 1 (std11-extract-address-components from))
+                       mime-edit-pgp-signers))
+             t))
+         (if mime-edit-pgp-signers
+             (epg-context-set-signers
+              context
+              (mapcar (lambda (name)
+                        (car (epg-list-keys context name t)))
+                      mime-edit-pgp-signers))))
+       (setq plain (buffer-substring (point-min) (point-max)))
+       (while (string-match "\r?\n" plain index)
+         (if (eq (aref plain (match-beginning 0)) ?\r)
+             (setq index (match-end 0))
+           (setq plain (replace-match "\r\n" t t plain)
+                 index (1+ (match-end 0)))))
+       (condition-case error
+           (setq signature
+                 (epg-sign-string context plain 'detached))
+         (error (signal 'mime-edit-error (cdr error))))
+       (setq micalg (epg-new-signature-digest-algorithm
+                     (car (epg-context-result-for context 'sign))))
+       (goto-char beg)
+       (insert (format "--[[multipart/signed;
+ boundary=\"%s\"%s;
+ protocol=\"application/pgp-signature\"][7bit]]
+--%s
+"
+                       pgp-boundary
+                       (if micalg
+                           (concat "; micalg=pgp-"
+                                   (downcase
+                                    (cdr (assq micalg
+                                               epg-digest-algorithm-alist))))
+                         "")
+                       pgp-boundary))
+       (goto-char (point-max))
+       (insert (format "\n--%s
+Content-Type: application/pgp-signature
+Content-Transfer-Encoding: 7bit
+Content-Description: OpenPGP Digital Signature
+
+" pgp-boundary))
+       (insert signature)
+       (goto-char (point-max))
+       (insert (format "\n--%s--\n" pgp-boundary))))))
 
 (defvar mime-edit-encrypt-recipient-fields-list '("To" "cc"))
 
@@ -1712,55 +1764,73 @@ Parameter must be '(PROMPT CHOICE1 (CHOISE2 ...))."
         (header (and (stringp from)
                      (if (string-equal from "")
                          ""
-                       (format "From: %s\n" from)
-                       )))
+                       (format "From: %s\n" from))))
         recipients)
     (while (and names values)
       (let ((name (car names))
-           (value (car values))
-           )
+           (value (car values)))
        (and (stringp value)
             (or (string-equal value "")
                 (progn
                   (setq header (concat header name ": " value "\n")
                         recipients (if recipients
                                        (concat recipients " ," value)
-                                     value))
-                  ))))
+                                     value))))))
       (setq names (cdr names)
-           values (cdr values))
-      )
-    (vector from recipients header)
-    ))
+           values (cdr values)))
+    (vector from recipients header)))
 
-(defun mime-edit-encrypt-pgp-elkins (beg end boundary)
+(defun mime-edit-encrypt-pgp-mime (beg end boundary)
   (save-excursion
     (save-restriction
-      (let (from recipients header)
-       (let ((ret (mime-edit-make-encrypt-recipient-header)))
-         (setq from (aref ret 0)
-               recipients (aref ret 1)
-               header (aref ret 2))
-         )
-       (narrow-to-region beg end)
-       (let* ((ret
-               (mime-edit-translate-region beg end boundary))
-              (ctype    (car ret))
-              (encoding (nth 1 ret))
-              (parts    (nth 3 ret))
-              (pgp-boundary (concat "pgp-" boundary))
-              )
-         (goto-char beg)
-         (insert header)
-         (insert (format "Content-Type: %s\n" ctype))
-         (if encoding
-             (insert (format "Content-Transfer-Encoding: %s\n" encoding))
-           )
-         (insert "\n")
-         (or (funcall (pgp-function 'encrypt)
-                      recipients (point-min) (point-max) from)
-             (throw 'mime-edit-error 'pgp-error)
-             )
+      (let* ((config (epg-configuration))
+            (ret (mime-edit-make-encrypt-recipient-header))
+            (recipients (aref ret 1))
+            (header (aref ret 2)))
+       (setq recipients
+             (apply #'nconc
+                    (mapcar (lambda (recipient)
+                              (setq recipient
+                                    (nth 1 (std11-extract-address-components
+                                            recipient)))
+                              (or (epg-expand-group config recipient)
+                                  (list recipient)))
+                            (delete "" (split-string recipients
+                                                     "[ \f\t\n\r\v,]+")))))
+        (narrow-to-region beg end)
+        (let* ((ret
+                (mime-edit-translate-region beg end boundary))
+               (ctype    (car ret))
+               (encoding (nth 1 ret))
+               (pgp-boundary (concat "pgp-" boundary))
+              (context (epg-make-context))
+              cipher)
+          (goto-char beg)
+          (insert header)
+          (insert (format "Content-Type: %s\n" ctype))
+          (if encoding
+              (insert (format "Content-Transfer-Encoding: %s\n" encoding)))
+          (insert "\n")
+         (mime-encode-header-in-buffer)
+         (epg-context-set-armor context t)
+         (if mime-edit-pgp-verbose
+             (setq recipients
+                   (epa-select-keys context "\
+Select recipients for encryption.
+If no one is selected, symmetric encryption will be performed.  "
+                                    recipients))
+           (setq recipients
+                 (delq nil (mapcar (lambda (name)
+                                     (car (epg-list-keys context name)))
+                                   recipients))))
+         (condition-case error
+             (setq cipher
+                   (epg-encrypt-string
+                    context
+                    (buffer-substring (point-min) (point-max))
+                    recipients))
+           (error (signal 'mime-edit-error (cdr error))))
+         (delete-region (point-min)(point-max))
          (goto-char beg)
          (insert (format "--[[multipart/encrypted;
  boundary=\"%s\";
@@ -1773,71 +1843,122 @@ Content-Type: application/octet-stream
 Content-Transfer-Encoding: 7bit
 
 " pgp-boundary pgp-boundary pgp-boundary))
+         (insert cipher)
          (goto-char (point-max))
-         (insert (format "\n--%s--\n" pgp-boundary))
-         )))))
+         (insert (format "\n--%s--\n" pgp-boundary)))))))
+
+(defun mime-edit-convert-lbt-string (string)
+  (let ((index 0))
+    (while (setq index (string-match "\n" string index))
+      (setq string (replace-match "\r\n" nil nil string)
+           index (+ index 2)))         ;(length "\r\n")
+    string))
 
-(defun mime-edit-sign-pgp-kazu (beg end boundary)
+(defun mime-edit-sign-smime (beg end boundary)
   (save-excursion
     (save-restriction
-      (narrow-to-region beg end)
-      (let* ((ret
-             (mime-edit-translate-region beg end boundary))
+      (let* ((from (std11-field-body "From" mail-header-separator))
+            (ret (progn 
+                   (narrow-to-region beg end)
+                   (mime-edit-translate-region beg end boundary)))
             (ctype    (car ret))
             (encoding (nth 1 ret))
-            (parts    (nth 3 ret))
-            )
+            (smime-boundary (concat "smime-sign-" boundary))
+            (context (epg-make-context 'CMS))
+            signature micalg)
        (goto-char beg)
        (insert (format "Content-Type: %s\n" ctype))
        (if encoding
-           (insert (format "Content-Transfer-Encoding: %s\n" encoding))
-         )
+           (insert (format "Content-Transfer-Encoding: %s\n" encoding)))
        (insert "\n")
-       (or (as-binary-process
-            (funcall (pgp-function 'traditional-sign)
-                     beg (point-max)))
-           (throw 'mime-edit-error 'pgp-error)
-           )
+       (epg-context-set-signers
+        context
+        (epa-select-keys
+         context
+         "\
+Select keys for signing.
+If no one is selected, default secret key is used.  "
+         (if from 
+             (list (nth 1 (std11-extract-address-components from))))
+         t))
+       (condition-case error
+           (setq signature
+                 (epg-sign-string context
+                                  (mime-edit-convert-lbt-string
+                                   (buffer-substring (point-min) (point-max)))
+                                  'detached))
+         (error (signal 'mime-edit-error (cdr error))))
+       (setq micalg (epg-new-signature-digest-algorithm
+                     (car (epg-context-result-for context 'sign))))
        (goto-char beg)
-       (insert
-        "--[[application/pgp; format=mime][7bit]]\n")
-       ))
-    ))
+       (insert (format "--[[multipart/signed;
+ boundary=\"%s\"%s;
+ protocol=\"application/pkcs7-signature\"][7bit]]
+--%s
+"
+                       smime-boundary
+                       (if micalg
+                           (concat "; micalg="
+                                   (downcase
+                                    (cdr (assq micalg
+                                               epg-digest-algorithm-alist))))
+                         "")
+                       smime-boundary))
+       (goto-char (point-max))
+       (insert (format "\n--%s
+Content-Type: application/pkcs7-signature; name=smime.p7s
+Content-Transfer-Encoding: base64
+Content-Disposition: attachment; filename=smime.p7s
+Content-Description: S/MIME Digital Signature
+
+" smime-boundary)
+               (base64-encode-string signature))))))
 
-(defun mime-edit-encrypt-pgp-kazu (beg end boundary)
+(defun mime-edit-encrypt-smime (beg end boundary)
   (save-excursion
-    (let (from recipients header)
-      (let ((ret (mime-edit-make-encrypt-recipient-header)))
-       (setq from (aref ret 0)
-             recipients (aref ret 1)
-             header (aref ret 2))
-       )
-      (save-restriction
-       (narrow-to-region beg end)
-       (let* ((ret
-               (mime-edit-translate-region beg end boundary))
-              (ctype    (car ret))
-              (encoding (nth 1 ret))
-              (parts    (nth 3 ret))
-              )
-         (goto-char beg)
-         (insert header)
-         (insert (format "Content-Type: %s\n" ctype))
-         (if encoding
-             (insert (format "Content-Transfer-Encoding: %s\n" encoding))
-           )
-         (insert "\n")
-         (or (as-binary-process
-              (funcall (pgp-function 'encrypt)
-                       recipients beg (point-max) nil 'maybe)
-              )
-             (throw 'mime-edit-error 'pgp-error)
-             )
+    (save-restriction
+      (let* ((ret (mime-edit-make-encrypt-recipient-header))
+            (recipients (aref ret 1))
+            (header (aref ret 2)))
+        (narrow-to-region beg end)
+        (let* ((ret
+                (mime-edit-translate-region beg end boundary))
+               (ctype    (car ret))
+               (encoding (nth 1 ret))
+              (context (epg-make-context 'CMS))
+              cipher)
+          (goto-char beg)
+          (insert header)
+          (insert (format "Content-Type: %s\n" ctype))
+          (if encoding
+              (insert (format "Content-Transfer-Encoding: %s\n" encoding)))
+          (insert "\n")
+         (mime-encode-header-in-buffer)
+         (condition-case error
+             (setq cipher
+                   (epg-encrypt-string
+                    context
+                    (buffer-substring (point-min) (point-max))
+                    (epa-select-keys
+                     context
+                     "\
+Select recipients for encryption.
+If no one is selected, symmetric encryption will be performed.  "
+                     (mapcar (lambda (recipient)
+                               (nth 1 (std11-extract-address-components
+                                       recipient)))
+                             (delete "" (split-string recipients 
+                                                      "[ \f\t\n\r\v,]+"))))))
+           (error (signal 'mime-edit-error (cdr error))))
+         (delete-region (point-min)(point-max))
          (goto-char beg)
-         (insert
-          "--[[application/pgp; format=mime][7bit]]\n")
-         ))
-      )))
+         (insert (format "--[[application/pkcs7-mime;
+ smime-type=enveloped-data;
+ name=smime.p7m
+Content-Disposition: attachment; filename=smime.p7m][base64]]
+
+")
+                 (base64-encode-string cipher)))))))
 
 (defsubst replace-space-with-underline (str)
   (mapconcat (function
@@ -1845,13 +1966,11 @@ Content-Transfer-Encoding: 7bit
                (char-to-string
                 (if (eq arg ?\ )
                     ?_
-                  arg)))) str "")
-  )
+                  arg)))) str ""))
 
 (defun mime-edit-make-boundary ()
   (concat mime-multipart-boundary "_"
-         (replace-space-with-underline (current-time-string))
-         ))
+         (replace-space-with-underline (current-time-string))))
 
 (defun mime-edit-translate-body ()
   "Encode the tagged MIME body in current buffer in MIME compliant message."
@@ -1862,8 +1981,7 @@ Content-Transfer-Encoding: 7bit
          ret)
       (while (mime-edit-process-multipart-1
              (format "%s-%d" boundary i))
-       (setq i (1+ i))
-       )
+       (setq i (1+ i)))
       (save-restriction
        ;; We are interested in message body.
        (let* ((beg
@@ -1883,17 +2001,15 @@ Content-Transfer-Encoding: 7bit
                  (point))))
          (setq ret (mime-edit-translate-region
                     beg end
-                    (format "%s-%d" boundary i)))
-         ))
+                    (format "%s-%d" boundary i)))))
       (mime-edit-dequote-region (point-min)(point-max))
       (let ((contype (car ret))                ;Content-Type
            (encoding (nth 1 ret))      ;Content-Transfer-Encoding
            )
-       ;; Insert X-Emacs field
-       (and mime-edit-insert-x-emacs-field
-            (or (mail-position-on-field "X-Emacs")
-                (insert mime-edit-x-emacs-value)
-                ))
+       ;; Insert User-Agent field
+       (and mime-edit-insert-user-agent-field
+            (or (mail-position-on-field "User-Agent")
+                (insert mime-edit-user-agent-value)))
        ;; Make primary MIME headers.
        (or (mail-position-on-field "MIME-Version")
            (insert mime-edit-mime-version-value))
@@ -1911,34 +2027,32 @@ Content-Transfer-Encoding: 7bit
        (if encoding
            (progn
              (mail-position-on-field "Content-Transfer-Encoding")
-             (insert encoding)))
-       ))))
+             (insert encoding)))))))
 
-(defun mime-edit-translate-single-part-tag (&optional prefix)
+(defun mime-edit-translate-single-part-tag (boundary &optional prefix)
   "Translate single-part-tag to MIME header."
   (if (re-search-forward mime-edit-single-part-tag-regexp nil t)
       (let* ((beg (match-beginning 0))
             (end (match-end 0))
-            (tag (buffer-substring beg end))
-            )
+            (tag (buffer-substring beg end)))
        (delete-region beg end)
        (let ((contype (mime-edit-get-contype tag))
-             (encoding (mime-edit-get-encoding tag))
-             )
+             (encoding (mime-edit-get-encoding tag)))
          (insert (concat prefix "--" boundary "\n"))
          (save-restriction
            (narrow-to-region (point)(point))
            (insert "Content-Type: " contype "\n")
            (if encoding
                (insert "Content-Transfer-Encoding: " encoding "\n"))
-           (eword-encode-header)
-           ))
-       t)))
+           (mime-encode-header-in-buffer))
+         (cons (and contype
+                    (downcase contype))
+               (and encoding
+                    (downcase encoding)))))))
 
 (defun mime-edit-translate-region (beg end &optional boundary multipart)
   (or boundary
-      (setq boundary (mime-edit-make-boundary))
-      )
+      (setq boundary (mime-edit-make-boundary)))
   (save-excursion
     (save-restriction
       (narrow-to-region beg end)
@@ -1964,28 +2078,28 @@ Content-Transfer-Encoding: 7bit
                  (buffer-substring (match-beginning 0) (match-end 0)))
            (delete-region (match-beginning 0) (1+ (match-end 0)))
            (setq contype (mime-edit-get-contype tag))
-           (setq encoding (mime-edit-get-encoding tag))
-           ))
+           (setq encoding (mime-edit-get-encoding tag))))
         (t
          ;; It's a multipart message.
          (goto-char (point-min))
-         (and (mime-edit-translate-single-part-tag)
-              (while (mime-edit-translate-single-part-tag "\n"))
-              )
-         ;; Define Content-Type as "multipart/mixed".
-         (setq contype
-               (concat "multipart/mixed;\n boundary=\"" boundary "\""))
-         ;; Content-Transfer-Encoding must be "7bit".
-         ;; The following encoding can be `nil', but is
-         ;; specified as is since there is no way that a user
-         ;; specifies it.
-         (setq encoding "7bit")
-         ;; Insert the trailer.
-         (goto-char (point-max))
-         (insert "\n--" boundary "--\n")
-         ))
-       (list contype encoding boundary nparts)
-       ))))
+         (let ((prio mime-content-transfer-encoding-priority-list)
+               part-info nprio)
+           (when (setq part-info
+                       (mime-edit-translate-single-part-tag boundary))
+             (and (setq nprio (member (cdr part-info) prio))
+                  (setq prio nprio))
+             (while (setq part-info
+                          (mime-edit-translate-single-part-tag boundary "\n"))
+               (and (setq nprio (member (cdr part-info) prio))
+                    (setq prio nprio))))
+           ;; Define Content-Type as "multipart/mixed".
+           (setq contype
+                 (concat "multipart/mixed;\n boundary=\"" boundary "\""))
+           (setq encoding (car prio))
+           ;; Insert the trailer.
+           (goto-char (point-max))
+           (insert "\n--" boundary "--\n"))))
+        (list contype encoding boundary nparts)))))
 
 (defun mime-edit-normalize-body ()
   "Normalize the body part by inserting appropriate message tags."
@@ -2004,23 +2118,19 @@ Content-Transfer-Encoding: 7bit
       (if (looking-at "[ \t]+$")
          (delete-region (match-beginning 0) (match-end 0)))
       (let ((beg (point))
-           (end (mime-edit-content-end))
-           )
+           (end (mime-edit-content-end)))
        (if (= end (point-max))
            nil
          (goto-char end)
          (or (looking-at mime-edit-beginning-tag-regexp)
              (eobp)
-             (insert (mime-make-text-tag) "\n")
-             ))
-       (visible-region beg end)
-       (goto-char beg)
-       )
+             (insert (mime-make-text-tag) "\n")))
+       (remove-text-properties beg end '(invisible mime-edit-invisible))
+       (goto-char beg))
       (cond
        ((mime-test-content-type contype "message")
        ;; Content-type "message" should be sent as is.
-       (forward-line 1)
-       )
+       (forward-line 1))
        ((mime-test-content-type contype "text")
        ;; Define charset for text if necessary.
        (setq charset (if charset
@@ -2030,15 +2140,13 @@ Content-Transfer-Encoding: 7bit
        (cond ((string-equal contype "text/x-rot13-47-48")
               (save-excursion
                 (forward-line)
-                (mule-caesar-region (point) (mime-edit-content-end))
-                ))
+                (mule-caesar-region (point) (mime-edit-content-end))))
              ((string-equal contype "text/enriched")
               (save-excursion
                 (let ((beg (progn
                              (forward-line)
                              (point)))
-                      (end (mime-edit-content-end))
-                      )
+                      (end (mime-edit-content-end)))
                   ;; Patch for hard newlines
                    ;; (save-excursion
                    ;;   (goto-char beg)
@@ -2047,22 +2155,25 @@ Content-Transfer-Encoding: 7bit
                    ;;                        (point)
                    ;;                        'hard t)))
                   ;; End patch for hard newlines
-                  (enriched-encode beg end)
+                  (enriched-encode beg end nil)
                   (goto-char beg)
                   (if (search-forward "\n\n")
-                      (delete-region beg (match-end 0))
-                    )
-                  ))))
+                      (delete-region beg (match-end 0)))))))
        ;; Point is now on current tag.
        ;; Define encoding and encode text if necessary.
        (or encoding    ;Encoding is not specified.
            (let* ((encoding
-                   (cdr
-                    (assq charset
-                          mime-edit-charset-default-encoding-alist)
-                    ))
-                  (beg (mime-edit-content-beginning))
-                  )
+                   (let (bits conv)
+                     (let ((ret (cdr (assq charset mime-charset-type-list))))
+                       (if ret
+                           (setq bits (car ret)
+                                 conv (nth 1 ret))
+                         (setq bits 8
+                               conv "quoted-printable")))
+                     (if (<= bits mime-transfer-level)
+                         (mime-encoding-name bits)
+                       conv)))
+                  (beg (mime-edit-content-beginning)))
              (encode-mime-charset-region beg (mime-edit-content-end)
                                          charset)
              ;; Protect "From " in beginning of line
@@ -2078,40 +2189,36 @@ Content-Transfer-Encoding: 7bit
                                            x-ctext))
                            (while (progn
                                     (replace-match "\e(BFrom ")
-                                    (re-search-forward "^From " nil t)
-                                    ))
-                         (setq encoding "quoted-printable")
-                         )))))
+                                    (re-search-forward "^From " nil t)))
+                         (setq encoding "quoted-printable"))))))
              ;; canonicalize line break code
              (or (member encoding '(nil "7bit" "8bit" "quoted-printable"))
                  (save-restriction
                    (narrow-to-region beg (mime-edit-content-end))
                    (goto-char beg)
-                   (while (re-search-forward "\\([^\r]\\)\n" nil t)
-                     (replace-match
-                      (concat (buffer-substring (match-beginning 0)
-                                                (match-end 1)) "\r\n"))
-                     )))
+                   (while (re-search-forward "\\(\\=\\|[^\r]\\)\n" nil t)
+                     ;; In a certain period, `replace-match' with "\\N"
+                     ;; converted 8-bit characters into multibyte string,
+                     ;; but it has been fixed at 2004-01-15.
+                     ;;(replace-match "\\1\r\n"))))
+                     (backward-char 1)
+                     (insert "\r")
+                     (forward-char 1))))
              (goto-char beg)
-             (mime-encode-region beg (mime-edit-content-end) encoding)
-             (mime-edit-define-encoding encoding)
-             ))
-       (goto-char (mime-edit-content-end))
-       )
+             (mime-encode-region beg (mime-edit-content-end)
+                                 (or encoding "7bit"))
+             (mime-edit-define-encoding encoding)))
+       (goto-char (mime-edit-content-end)))
        ((null encoding)                ;Encoding is not specified.
        ;; Application, image, audio, video, and any other
        ;; unknown content-type without encoding should be
        ;; encoded.
        (let* ((encoding "base64")      ;Encode in BASE64 by default.
               (beg (mime-edit-content-beginning))
-              (end (mime-edit-content-end))
-              (body (buffer-substring beg end))
-              )
+              (end (mime-edit-content-end)))
          (mime-encode-region beg end encoding)
          (mime-edit-define-encoding encoding))
-       (forward-line 1)
-       ))
-      )))
+       (forward-line 1))))))
 
 (defun mime-delete-field (field)
   "Delete header FIELD."
@@ -2119,8 +2226,7 @@ Content-Transfer-Encoding: 7bit
     (goto-char (point-min))
     (while (re-search-forward regexp nil t)
       (delete-region (match-beginning 0)
-                    (progn (forward-line 1) (point)))
-      )))
+                    (1+ (std11-field-end))))))
 
 \f
 ;;;
@@ -2134,8 +2240,7 @@ Content-Transfer-Encoding: 7bit
 and insert data encoded as ENCODING."
   (message "Start the recording on %s.  Type C-g to finish the recording..."
           (system-name))
-  (mime-insert-encoded-file "/dev/audio" encoding)
-  )
+  (mime-insert-encoded-file "/dev/audio" encoding))
 
 \f
 ;;; @ Other useful commands.
@@ -2149,10 +2254,8 @@ and insert data encoded as ENCODING."
     (if (and inserter (fboundp inserter))
        (progn
          (mime-edit-insert-tag "message" "rfc822")
-         (funcall inserter message)
-         )
-      (message "Sorry, I don't have message inserter for your MUA.")
-      )))
+         (funcall inserter message))
+      (message "Sorry, I don't have message inserter for your MUA."))))
 
 (defun mime-edit-insert-mail (&optional message)
   (interactive)
@@ -2160,10 +2263,8 @@ and insert data encoded as ENCODING."
     (if (and inserter (fboundp inserter))
        (progn
          (mime-edit-insert-tag "message" "rfc822")
-         (funcall inserter message)
-         )
-      (message "Sorry, I don't have mail inserter for your MUA.")
-      )))
+         (funcall inserter message))
+      (message "Sorry, I don't have mail inserter for your MUA."))))
 
 (defun mime-edit-inserted-message-filter ()
   (save-excursion
@@ -2174,17 +2275,13 @@ and insert data encoded as ENCODING."
        ;; for Emacs 18
        ;; (if (re-search-forward "^$" (marker-position (mark-marker)))
        (if (re-search-forward "^$" (mark t))
-           (narrow-to-region header-start (match-beginning 0))
-         )
+           (narrow-to-region header-start (match-beginning 0)))
        (goto-char header-start)
        (while (and (re-search-forward
                     mime-edit-yank-ignored-field-regexp nil t)
                    (setq beg (match-beginning 0))
-                   (setq end (1+ (std11-field-end)))
-                   )
-         (delete-region beg end)
-         )
-       ))))
+                   (setq end (1+ (std11-field-end))))
+         (delete-region beg end))))))
 
 
 ;;; @ multipart enclosure
@@ -2193,66 +2290,65 @@ and insert data encoded as ENCODING."
 (defun mime-edit-enclose-region-internal (type beg end)
   (save-excursion
     (goto-char beg)
-    (let ((current (point)))
-      (save-restriction
-       (narrow-to-region beg end)
-       (insert (format "--<<%s>>-{\n" type))
-       (goto-char (point-max))
-       (insert (format "--}-<<%s>>\n" type))
-       (goto-char (point-max))
-       )
-      (or (looking-at mime-edit-beginning-tag-regexp)
-         (eobp)
-         (insert (mime-make-text-tag) "\n")
-         )
-      )))
+    (save-restriction
+      (narrow-to-region beg end)
+      (insert (format "--<<%s>>-{\n" type))
+      (goto-char (point-max))
+      (insert (format "--}-<<%s>>\n" type))
+      (goto-char (point-max)))
+    (or (looking-at mime-edit-beginning-tag-regexp)
+       (eobp)
+       (insert (mime-make-text-tag) "\n"))))
 
 (defun mime-edit-enclose-quote-region (beg end)
   (interactive "*r")
-  (mime-edit-enclose-region-internal 'quote beg end)
-  )
+  (mime-edit-enclose-region-internal 'quote beg end))
 
 (defun mime-edit-enclose-mixed-region (beg end)
   (interactive "*r")
-  (mime-edit-enclose-region-internal 'mixed beg end)
-  )
+  (mime-edit-enclose-region-internal 'mixed beg end))
 
 (defun mime-edit-enclose-parallel-region (beg end)
   (interactive "*r")
-  (mime-edit-enclose-region-internal 'parallel beg end)
-  )
+  (mime-edit-enclose-region-internal 'parallel beg end))
 
 (defun mime-edit-enclose-digest-region (beg end)
   (interactive "*r")
-  (mime-edit-enclose-region-internal 'digest beg end)
-  )
+  (mime-edit-enclose-region-internal 'digest beg end))
 
 (defun mime-edit-enclose-alternative-region (beg end)
   (interactive "*r")
-  (mime-edit-enclose-region-internal 'alternative beg end)
-  )
+  (mime-edit-enclose-region-internal 'alternative beg end))
 
-(defun mime-edit-enclose-signed-region (beg end)
+(defun mime-edit-enclose-pgp-signed-region (beg end)
   (interactive "*r")
-  (if mime-edit-signing-type
-      (mime-edit-enclose-region-internal 'signed beg end)
-    (message "Please specify signing type.")
-    ))
+  (mime-edit-enclose-region-internal 'pgp-signed beg end))
 
-(defun mime-edit-enclose-encrypted-region (beg end)
+(defun mime-edit-enclose-pgp-encrypted-region (beg end)
   (interactive "*r")
-  (if mime-edit-signing-type
-      (mime-edit-enclose-region-internal 'encrypted beg end)
-    (message "Please specify encrypting type.")
-    ))
+  (mime-edit-enclose-region-internal 'pgp-encrypted beg end))
+
+(defun mime-edit-enclose-smime-signed-region (beg end)
+  (interactive "*r")
+  (mime-edit-enclose-region-internal 'smime-signed beg end))
+
+(defun mime-edit-enclose-smime-encrypted-region (beg end)
+  (interactive "*r")
+  (mime-edit-enclose-region-internal 'smime-encrypted beg end))
 
 (defun mime-edit-insert-key (&optional arg)
   "Insert a pgp public key."
   (interactive "P")
   (mime-edit-insert-tag "application" "pgp-keys")
   (mime-edit-define-encoding "7bit")
-  (funcall (pgp-function 'insert-key))
-  )
+  (let ((context (epg-make-context)))
+    (epg-context-set-armor context t)
+    (epg-export-keys-to-string context
+                              (epa-select-keys context
+                                               "Select keys for export.  ")))
+  (if (and (not (eobp))
+          (not (looking-at mime-edit-single-part-tag-regexp)))
+      (insert (mime-make-text-tag) "\n")))
 
 
 ;;; @ flag setting
@@ -2261,13 +2357,11 @@ and insert data encoded as ENCODING."
 (defun mime-edit-set-split (arg)
   (interactive
    (list
-    (y-or-n-p "Do you want to enable split? ")
-    ))
+    (y-or-n-p "Do you want to enable split? ")))
   (setq mime-edit-split-message arg)
   (if arg
       (message "This message is enabled to split.")
-    (message "This message is not enabled to split.")
-    ))
+    (message "This message is not enabled to split.")))
 
 (defun mime-edit-toggle-transfer-level (&optional transfer-level)
   "Toggle transfer-level is 7bit or 8bit through.
@@ -2278,88 +2372,72 @@ Optional TRANSFER-LEVEL is a number of transfer-level, 7 or 8."
       (setq mime-transfer-level transfer-level)
     (if (< mime-transfer-level 8)
        (setq mime-transfer-level 8)
-      (setq mime-transfer-level 7)
-      ))
-  (setq mime-edit-charset-default-encoding-alist
-       (mime-make-charset-default-encoding-alist mime-transfer-level))
+      (setq mime-transfer-level 7)))
   (message (format "Current transfer-level is %d bit"
                   mime-transfer-level))
   (setq mime-transfer-level-string
        (mime-encoding-name mime-transfer-level 'not-omit))
-  (force-mode-line-update)
-  )
+  (force-mode-line-update))
 
 (defun mime-edit-set-transfer-level-7bit ()
   (interactive)
-  (mime-edit-toggle-transfer-level 7)
-  )
+  (mime-edit-toggle-transfer-level 7))
 
 (defun mime-edit-set-transfer-level-8bit ()
   (interactive)
-  (mime-edit-toggle-transfer-level 8)
-  )
+  (mime-edit-toggle-transfer-level 8))
 
 
 ;;; @ pgp
 ;;;
 
+(defvar mime-edit-pgp-processing nil)
+(make-variable-buffer-local 'mime-edit-pgp-processing)
+
 (defun mime-edit-set-sign (arg)
   (interactive
    (list
-    (y-or-n-p "Do you want to sign? ")
-    ))
+    (y-or-n-p "Do you want to sign? ")))
   (if arg
-      (if mime-edit-signing-type
-         (progn
-           (setq mime-edit-pgp-processing 'sign)
-           (message "This message will be signed.")
-           )
-       (message "Please specify signing type.")
-       )
-    (if (eq mime-edit-pgp-processing 'sign)
-       (setq mime-edit-pgp-processing nil)
-      )
-    (message "This message will not be signed.")
-    ))
+      (progn
+       (or (memq 'sign mime-edit-pgp-processing)
+           (setq mime-edit-pgp-processing 
+                 (nconc mime-edit-pgp-processing 
+                        (copy-sequence '(sign)))))
+       (message "This message will be signed."))
+    (setq mime-edit-pgp-processing 
+         (delq 'sign mime-edit-pgp-processing))
+    (message "This message will not be signed.")))
 
 (defun mime-edit-set-encrypt (arg)
   (interactive
    (list
-    (y-or-n-p "Do you want to encrypt? ")
-    ))
+    (y-or-n-p "Do you want to encrypt? ")))
   (if arg
-      (if mime-edit-encrypting-type
-         (progn
-           (setq mime-edit-pgp-processing 'encrypt)
-           (message "This message will be encrypt.")
-           )
-       (message "Please specify encrypting type.")
-       )
-    (if (eq mime-edit-pgp-processing 'encrypt)
-       (setq mime-edit-pgp-processing nil)
-      )
-    (message "This message will not be encrypt.")
-    ))
-
-(defvar mime-edit-pgp-processing nil)
-(make-variable-buffer-local 'mime-edit-pgp-processing)
+      (progn
+       (or (memq 'encrypt mime-edit-pgp-processing)
+           (setq mime-edit-pgp-processing 
+                 (nconc mime-edit-pgp-processing 
+                        (copy-sequence '(encrypt)))))
+       (message "This message will be encrypt."))
+    (setq mime-edit-pgp-processing
+         (delq 'encrypt mime-edit-pgp-processing))
+    (message "This message will not be encrypt.")))
 
 (defun mime-edit-pgp-enclose-buffer ()
   (let ((beg (save-excursion
               (goto-char (point-min))
               (if (search-forward (concat "\n" mail-header-separator "\n"))
-                  (match-end 0)
-                )))
-       (end (point-max))
-       )
+                  (match-end 0)))))
     (if beg
-       (cond ((eq mime-edit-pgp-processing 'sign)
-              (mime-edit-enclose-signed-region beg end)
-              )
-             ((eq mime-edit-pgp-processing 'encrypt)
-              (mime-edit-enclose-encrypted-region beg end)
-              ))
-      )))
+       (dolist (pgp-processing mime-edit-pgp-processing)
+         (case pgp-processing
+           (sign
+            (mime-edit-enclose-pgp-signed-region 
+             beg (point-max)))
+           (encrypt
+            (mime-edit-enclose-pgp-encrypted-region 
+             beg (point-max))))))))
 
 
 ;;; @ split
@@ -2372,29 +2450,22 @@ Optional TRANSFER-LEVEL is a number of transfer-level, 7 or 8."
   (insert mime-edit-mime-version-field-for-message/partial)
   (insert (format "\
 Content-Type: message/partial; id=%s; number=%d; total=%d\n%s\n"
-                 id number total separator))
-  )
+                 id number total separator)))
 
 (defun mime-edit-split-and-send
   (&optional cmd lines mime-edit-message-max-length)
   (interactive)
   (or lines
       (setq lines
-           (count-lines (point-min) (point-max)))
-      )
+           (count-lines (point-min) (point-max))))
   (or mime-edit-message-max-length
       (setq mime-edit-message-max-length
            (or (cdr (assq major-mode mime-edit-message-max-lines-alist))
-               mime-edit-message-default-max-lines))
-      )
-  (let* ((mime-edit-draft-file-name
-         (or (buffer-file-name)
-             (make-temp-name
-              (expand-file-name "mime-draft" mime-temp-directory))))
-        (separator mail-header-separator)
-        (id (concat "\""
-                    (replace-space-with-underline (current-time-string))
-                    "@" (system-name) "\"")))
+               mime-edit-message-default-max-lines)))
+  (let ((separator mail-header-separator)
+       (id (concat "\""
+                   (replace-space-with-underline (current-time-string))
+                   "@" (system-name) "\"")))
     (run-hooks 'mime-edit-before-split-hook)
     (let ((the-buf (current-buffer))
          (copy-buf (get-buffer-create " *Original Message*"))
@@ -2412,9 +2483,7 @@ Content-Type: message/partial; id=%s; number=%d; total=%d\n%s\n"
               (function
                (lambda ()
                  (interactive)
-                 (error "Split sender is not specified for `%s'." major-mode)
-                 ))
-              ))
+                 (error "Split sender is not specified for `%s'." major-mode)))))
          (mime-edit-partial-number 1)
          data)
       (save-excursion
@@ -2426,13 +2495,11 @@ Content-Type: message/partial; id=%s; number=%d; total=%d\n%s\n"
               (concat "^" (regexp-quote separator) "$") nil t)
              (let ((he (match-beginning 0)))
                (replace-match "")
-               (narrow-to-region (point-min) he)
-               ))
+               (narrow-to-region (point-min) he)))
          (goto-char (point-min))
          (while (re-search-forward mime-edit-split-blind-field-regexp nil t)
            (delete-region (match-beginning 0)
-                          (1+ (std11-field-end)))
-           )))
+                          (1+ (std11-field-end))))))
       (while (< mime-edit-partial-number total)
        (erase-buffer)
        (save-excursion
@@ -2441,10 +2508,8 @@ Content-Type: message/partial; id=%s; number=%d; total=%d\n%s\n"
                      (point-min)
                      (progn
                        (goto-line mime-edit-message-max-length)
-                       (point))
-                     ))
-         (delete-region (point-min)(point))
-         )
+                       (point))))
+         (delete-region (point-min)(point)))
        (mime-edit-insert-partial-header
         header subject id mime-edit-partial-number total separator)
        (insert data)
@@ -2452,28 +2517,23 @@ Content-Type: message/partial; id=%s; number=%d; total=%d\n%s\n"
          (message (format "Sending %d/%d..."
                           mime-edit-partial-number total))
          (call-interactively command)
-         (message (format "Sending %d/%d... done"
-                          mime-edit-partial-number total))
-         )
+         (message (format "Sending %d/%d...done"
+                          mime-edit-partial-number total)))
        (setq mime-edit-partial-number
-             (1+ mime-edit-partial-number))
-       )
+             (1+ mime-edit-partial-number)))
       (erase-buffer)
       (save-excursion
        (set-buffer copy-buf)
        (setq data (buffer-string))
-       (erase-buffer)
-       )
+       (erase-buffer))
       (mime-edit-insert-partial-header
        header subject id mime-edit-partial-number total separator)
       (insert data)
       (save-excursion
        (message (format "Sending %d/%d..."
                         mime-edit-partial-number total))
-       (message (format "Sending %d/%d... done"
-                        mime-edit-partial-number total))
-       )
-      )))
+       (message (format "Sending %d/%d...done"
+                        mime-edit-partial-number total))))))
 
 (defun mime-edit-maybe-split-and-send (&optional cmd)
   (interactive)
@@ -2481,18 +2541,17 @@ Content-Type: message/partial; id=%s; number=%d; total=%d\n%s\n"
   (let ((mime-edit-message-max-length
         (or (cdr (assq major-mode mime-edit-message-max-lines-alist))
             mime-edit-message-default-max-lines))
-       (lines (count-lines (point-min) (point-max)))
-       )
+       (lines (count-lines (point-min) (point-max))))
     (if (and (> lines mime-edit-message-max-length)
             mime-edit-split-message)
-       (mime-edit-split-and-send cmd lines mime-edit-message-max-length)
-      )))
+       (mime-edit-split-and-send cmd lines mime-edit-message-max-length))))
 
 
 ;;; @ preview message
 ;;;
 
 (defvar mime-edit-buffer nil) ; buffer local variable
+(defvar mime-edit-temp-message-buffer nil) ; buffer local variable
 
 (defun mime-edit-preview-message ()
   "preview editing MIME message."
@@ -2503,42 +2562,40 @@ Content-Type: message/partial; id=%s; number=%d; total=%d\n%s\n"
         (buf-name (buffer-name))
         (temp-buf-name (concat "*temp-article:" buf-name "*"))
         (buf (get-buffer temp-buf-name))
-        )
+        (pgp-processing mime-edit-pgp-processing))
     (if buf
        (progn
          (switch-to-buffer buf)
-         (erase-buffer)
-         )
+         (erase-buffer))
       (setq buf (get-buffer-create temp-buf-name))
-      (switch-to-buffer buf)
-      )
+      (switch-to-buffer buf))
     (insert str)
     (setq major-mode 'mime-temp-message-mode)
     (make-local-variable 'mail-header-separator)
     (setq mail-header-separator separator)
     (make-local-variable 'mime-edit-buffer)
     (setq mime-edit-buffer the-buf)
+    (setq mime-edit-pgp-processing pgp-processing)
 
     (run-hooks 'mime-edit-translate-hook)
     (mime-edit-translate-buffer)
     (goto-char (point-min))
     (if (re-search-forward
         (concat "^" (regexp-quote separator) "$"))
-       (replace-match "")
-      )
-    (mime-view-mode)
-    ))
+       (replace-match ""))
+    (mime-view-buffer)
+    (make-local-variable 'mime-edit-temp-message-buffer)
+    (setq mime-edit-temp-message-buffer buf)))
 
 (defun mime-edit-quitting-method ()
   "Quitting method for mime-view."
-  (let ((temp mime-raw-buffer)
-       buf)
+  (let* ((temp mime-edit-temp-message-buffer)
+        buf)
     (mime-preview-kill-buffer)
     (set-buffer temp)
     (setq buf mime-edit-buffer)
     (kill-buffer temp)
-    (switch-to-buffer buf)
-    ))
+    (switch-to-buffer buf)))
 
 (set-alist 'mime-preview-quitting-method-alist
           'mime-temp-message-mode
@@ -2550,145 +2607,218 @@ Content-Type: message/partial; id=%s; number=%d; total=%d\n%s\n"
 
 (defvar mime-edit-again-ignored-field-regexp
   (concat "^\\(" "Content-.*\\|Mime-Version"
-         (if mime-edit-insert-x-emacs-field "\\|X-Emacs")
+         (if mime-edit-insert-user-agent-field "\\|User-Agent")
          "\\):")
   "Regexp for deleted header fields when `mime-edit-again' is called.")
 
-(defun mime-edit-decode-buffer (not-decode-text)
+(defsubst eliminate-top-spaces (string)
+  "Eliminate top sequence of space or tab in STRING."
+  (if (string-match "^[ \t]+" string)
+      (substring string (match-end 0))
+    string))
+
+(defun mime-edit-decode-multipart-in-buffer (content-type not-decode-text)
+  (let* ((subtype
+         (or
+          (cdr (assoc (mime-content-type-parameter content-type "protocol")
+                      '(("application/pgp-encrypted" . pgp-encrypted)
+                        ("application/pgp-signature" . pgp-signed))))
+          (mime-content-type-subtype content-type)))
+        (boundary (mime-content-type-parameter content-type "boundary"))
+        (boundary-pat (concat "\n--" (regexp-quote boundary) "[ \t]*\n")))
+    (re-search-forward boundary-pat nil t)
+    (let ((bb (match-beginning 0)) eb tag)
+      (setq tag (format "\n--<<%s>>-{\n" subtype))
+      (goto-char bb)
+      (insert tag)
+      (setq bb (+ bb (length tag)))
+      (re-search-forward
+       (concat "\n--" (regexp-quote boundary) "--[ \t]*\n")
+       nil t)
+      (setq eb (match-beginning 0))
+      (replace-match (format "--}-<<%s>>\n" subtype))
+      (save-restriction
+       (narrow-to-region bb eb)
+       (goto-char (point-min))
+       (while (re-search-forward boundary-pat nil t)
+         (let ((beg (match-beginning 0))
+               end)
+           (delete-region beg (match-end 0))
+           (save-excursion
+             (if (re-search-forward boundary-pat nil t)
+                 (setq end (match-beginning 0))
+               (setq end (point-max)))
+             (save-restriction
+               (narrow-to-region beg end)
+               (cond
+                ((eq subtype 'pgp-encrypted)
+                 (when (progn
+                          (goto-char (point-min))
+                          (re-search-forward "^-+BEGIN PGP MESSAGE-+$"
+                                             nil t))
+                   (insert (epg-decrypt-string
+                            (epg-make-context)
+                            (buffer-substring (match-beginning 0)
+                                              (point-max))))
+                   (delete-region (point)(point-max))
+                   (mime-edit-decode-message-in-buffer 
+                    nil not-decode-text)
+                   (delete-region (goto-char (point-min))
+                                  (if (search-forward "\n\n" nil t)
+                                      (match-end 0)
+                                    (point-min)))
+                   (goto-char (point-max))))
+                (t 
+                 (mime-edit-decode-message-in-buffer
+                  (if (eq subtype 'digest)
+                      (eval-when-compile
+                        (make-mime-content-type 'message 'rfc822)))
+                  not-decode-text)
+                 (goto-char (point-max))))))))))
+    (goto-char (point-min))
+    (or (= (point-min) 1)
+       (delete-region (point-min)
+                      (if (search-forward "\n\n" nil t)
+                          (match-end 0)
+                        (point-min))))))
+
+(defun mime-edit-decode-single-part-in-buffer
+  (content-type not-decode-text &optional content-disposition)
+  (let* ((type (mime-content-type-primary-type content-type))
+        (subtype (mime-content-type-subtype content-type))
+        (ctype (format "%s/%s" type subtype))
+        charset
+        (pstr (let ((bytes (+ 14 (length ctype))))
+                (mapconcat (function
+                            (lambda (attr)
+                              (if (string= (car attr) "charset")
+                                  (progn
+                                    (setq charset (cdr attr))
+                                    "")
+                                (let* ((str (concat (car attr)
+                                                    "=" (cdr attr)))
+                                       (bs (length str)))
+                                  (setq bytes (+ bytes bs 2))
+                                  (if (< bytes 76)
+                                      (concat "; " str)
+                                    (setq bytes (+ bs 1))
+                                    (concat ";\n " str)
+                                    )))))
+                           (mime-content-type-parameters content-type) "")))
+        encoding
+        encoded
+        (limit (save-excursion
+                 (if (search-forward "\n\n" nil t)
+                     (1- (point)))))
+        (disposition-type
+         (mime-content-disposition-type content-disposition))
+        (disposition-str
+         (if disposition-type
+             (let ((bytes (+ 21 (length (format "%s" disposition-type)))))
+               (mapconcat (function
+                           (lambda (attr)
+                             (let* ((str (concat
+                                          (car attr)
+                                          "="
+                                          (if (string-equal "filename"
+                                                            (car attr))
+                                              (std11-wrap-as-quoted-string
+                                               (cdr attr))
+                                            (cdr attr))))
+                                    (bs (length str)))
+                               (setq bytes (+ bytes bs 2))
+                               (if (< bytes 76)
+                                   (concat "; " str)
+                                 (setq bytes (+ bs 1))
+                                 (concat ";\n " str)
+                                 ))))
+                          (mime-content-disposition-parameters
+                           content-disposition)
+                          "")))))
+    (if disposition-type
+       (setq pstr (format "%s\nContent-Disposition: %s%s"
+                          pstr disposition-type disposition-str)))
+    (save-excursion
+      (if (re-search-forward
+          "^Content-Transfer-Encoding:" limit t)
+         (let ((beg (match-beginning 0))
+               (hbeg (match-end 0))
+               (end (std11-field-end limit)))
+           (setq encoding
+                 (downcase
+                  (eliminate-top-spaces
+                   (std11-unfold-string
+                    (buffer-substring hbeg end)))))
+           (if (or charset (eq type 'text))
+               (progn
+                 (delete-region beg (1+ end))
+                 (goto-char (point-min))
+                 (if (search-forward "\n\n" nil t)
+                     (progn
+                       (mime-decode-region
+                        (match-end 0)(point-max) encoding)
+                       (setq encoded t
+                             encoding nil))))))))
+    (if (and (eq type 'text)
+            (or encoded (not not-decode-text)))
+       (progn
+         (save-excursion
+           (goto-char (point-min))
+           (while (re-search-forward "\r\n" nil t)
+             (replace-match "\n")))
+         (decode-mime-charset-region (point-min)(point-max)
+                                     (or charset default-mime-charset))))
+    (let ((he (if (re-search-forward "^$" nil t)
+                 (match-end 0)
+               (point-min))))
+      (if (and (eq type 'text)
+              (eq subtype 'x-rot13-47-48))
+         (mule-caesar-region he (point-max)))
+      (if (= (point-min) 1)
+         (progn
+           (goto-char he)
+           (insert
+            (concat "\n"
+                    (mime-create-tag
+                     (format "%s/%s%s" type subtype pstr)
+                     encoding))))
+       (delete-region (point-min) he)
+       (insert
+        (mime-create-tag (format "%s/%s%s" type subtype pstr)
+                         encoding))))))
+
+;;;###autoload
+(defun mime-edit-decode-message-in-buffer (&optional default-content-type
+                                                    not-decode-text)
   (save-excursion
     (goto-char (point-min))
-    (let ((ctl (mime-read-Content-Type)))
+    (let ((ctl (or (mime-read-Content-Type)
+                  default-content-type)))
       (if ctl
-         (let ((type (car ctl))
-               (stype (car (cdr ctl)))
-               (params (cdr (cdr ctl)))
-               )
+         (let ((type (mime-content-type-primary-type ctl)))
            (cond
-            ((and (eq type 'application)(eq stype 'pgp-signature))
-             (delete-region (point-min)(point-max))
-             )
+            ((and (eq type 'application)
+                  (eq (mime-content-type-subtype ctl) 'pgp-signature))
+             (delete-region (point-min)(point-max)))
             ((eq type 'multipart)
-             (let* ((boundary (cdr (assoc "boundary" params)))
-                    (boundary-pat
-                     (concat "\n--" (regexp-quote boundary) "[ \t]*\n"))
-                    )
-               (re-search-forward boundary-pat nil t)
-               (let ((bb (match-beginning 0)) eb tag)
-                 (setq tag (format "\n--<<%s>>-{\n" stype))
-                 (goto-char bb)
-                 (insert tag)
-                 (setq bb (+ bb (length tag)))
-                 (re-search-forward
-                  (concat "\n--" (regexp-quote boundary) "--[ \t]*\n")
-                  nil t)
-                 (setq eb (match-beginning 0))
-                 (replace-match (format "--}-<<%s>>\n" stype))
-                 (save-restriction
-                   (narrow-to-region bb eb)
-                   (goto-char (point-min))
-                   (while (re-search-forward boundary-pat nil t)
-                     (let ((beg (match-beginning 0))
-                           end)
-                       (delete-region beg (match-end 0))
-                       (save-excursion
-                         (if (re-search-forward boundary-pat nil t)
-                             (setq end (match-beginning 0))
-                           (setq end (point-max))
-                           )
-                         (save-restriction
-                           (narrow-to-region beg end)
-                           (mime-edit-decode-buffer not-decode-text)
-                           (goto-char (point-max))
-                           ))))
-                   ))
-               (goto-char (point-min))
-               (or (= (point-min) 1)
-                   (delete-region (point-min)
-                                  (if (search-forward "\n\n" nil t)
-                                      (match-end 0)
-                                    (point-min)
-                                    )))
-               ))
+             (mime-edit-decode-multipart-in-buffer ctl not-decode-text))
             (t
-             (let* ((ctype (format "%s/%s" type stype))
-                    charset
-                    (pstr
-                     (let ((bytes (+ 14 (length ctype))))
-                       (mapconcat (function
-                                   (lambda (attr)
-                                     (if (string= (car attr) "charset")
-                                         (progn
-                                           (setq charset (cdr attr))
-                                           "")
-                                       (let* ((str
-                                               (concat (car attr)
-                                                       "=" (cdr attr))
-                                               )
-                                              (bs (length str))
-                                              )
-                                         (setq bytes (+ bytes bs 2))
-                                         (if (< bytes 76)
-                                             (concat "; " str)
-                                           (setq bytes (+ bs 1))
-                                           (concat ";\n " str)
-                                           )
-                                         ))))
-                                  params "")))
-                    encoding
-                    encoded)
-               (save-excursion
-                 (if (re-search-forward
-                      "Content-Transfer-Encoding:" nil t)
-                     (let ((beg (match-beginning 0))
-                           (hbeg (match-end 0))
-                           (end (std11-field-end)))
-                       (setq encoding
-                             (eliminate-top-spaces
-                              (std11-unfold-string
-                               (buffer-substring hbeg end))))
-                       (if (or charset (eq type 'text))
-                           (progn
-                             (delete-region beg (1+ end))
-                             (goto-char (point-min))
-                             (if (search-forward "\n\n" nil t)
-                                 (progn
-                                   (mime-decode-region
-                                    (match-end 0)(point-max) encoding)
-                                   (setq encoded t
-                                         encoding nil)
-                                   )))))))
-               (if (or encoded (not not-decode-text))
-                   (decode-mime-charset-region
-                    (point-min)(point-max)
-                    (or charset default-mime-charset))
-                 )
-               (let ((he
-                      (if (re-search-forward "^$" nil t)
-                          (match-end 0)
-                        (point-min)
-                        )))
-                 (if (= (point-min) 1)
-                     (progn
-                       (goto-char he)
-                       (insert
-                        (concat "\n"
-                                (mime-create-tag
-                                 (format "%s/%s%s" type stype pstr)
-                                 encoding)))
-                       )
-                   (delete-region (point-min) he)
-                   (insert
-                    (mime-create-tag
-                     (format "%s/%s%s" type stype pstr)
-                     encoding))
-                   ))
-               ))))
+             (mime-edit-decode-single-part-in-buffer
+              ctl not-decode-text (mime-read-Content-Disposition)))))
        (or not-decode-text
            (decode-mime-charset-region (point-min) (point-max)
-                                       default-mime-charset)
-           )
-       ))))
+                                       default-mime-charset)))
+      (if (= (point-min) 1)
+         (progn
+           (save-restriction
+             (std11-narrow-to-header)
+             (goto-char (point-min))
+             (while (re-search-forward
+                     mime-edit-again-ignored-field-regexp nil t)
+               (delete-region (match-beginning 0) (1+ (std11-field-end)))))
+           (mime-decode-header-in-buffer (not not-decode-text)))))))
 
+;;;###autoload
 (defun mime-edit-again (&optional not-decode-text no-separator not-turn-on)
   "Convert current buffer to MIME-Edit buffer and turn on MIME-Edit mode.
 Content-Type and Content-Transfer-Encoding header fields will be
@@ -2698,23 +2828,14 @@ converted to MIME-Edit tags."
   (if (search-forward
        (concat "\n" (regexp-quote mail-header-separator) "\n")
        nil t)
-      (replace-match "\n\n")
-    )
-  (mime-edit-decode-buffer not-decode-text)
+      (replace-match "\n\n"))
+  (mime-edit-decode-message-in-buffer nil not-decode-text)
   (goto-char (point-min))
-  (save-restriction
-    (std11-narrow-to-header)
-    (goto-char (point-min))
-    (while (re-search-forward mime-edit-again-ignored-field-regexp nil t)
-      (delete-region (match-beginning 0) (1+ (std11-field-end)))
-      ))
   (or no-separator
       (and (re-search-forward "^$")
-          (replace-match mail-header-separator)
-          ))
+          (replace-match mail-header-separator)))
   (or not-turn-on
-      (turn-on-mime-edit)
-      ))
+      (turn-on-mime-edit)))
 
 
 ;;; @ end