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- ;;; tm-def.el --- definition module for tm
-
- ;; Copyright (C) 1995,1996,1997 Free Software Foundation, Inc.
-
- ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
- ;; Version: $Id: tm-def.el,v 7.74 1997/04/05 06:42:32 morioka Exp $
- ;; Keywords: mail, news, MIME, multimedia, definition
-
- ;; This file is part of tm (Tools for MIME).
-
- ;; This program is free software; you can redistribute it and/or
- ;; modify it under the terms of the GNU General Public License as
- ;; published by the Free Software Foundation; either version 2, or (at
- ;; your option) any later version.
-
- ;; This program is distributed in the hope that it will be useful, but
- ;; WITHOUT ANY WARRANTY; without even the implied warranty of
- ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- ;; General Public License for more details.
-
- ;; 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.
-
- ;;; Code:
-
- (require 'emu)
-
-
- ;;; @ variables
- ;;;
-
- (defvar mime/tmp-dir (or (getenv "TM_TMP_DIR") "/tmp/"))
-
- (defvar mime/use-multi-frame
- (and (>= emacs-major-version 19) window-system))
-
- (defvar mime/find-file-function
- (if mime/use-multi-frame
- (function find-file-other-frame)
- (function find-file)
- ))
-
- (defvar mime/output-buffer-window-is-shared-with-bbdb t
- "*If t, mime/output-buffer window is shared with BBDB window.")
-
-
- ;;; @ constants
- ;;;
-
- (defconst mime/output-buffer-name "*MIME-out*")
- (defconst mime/temp-buffer-name " *MIME-temp*")
-
-
- ;;; @ charset and encoding
- ;;;
-
- (defvar mime-charset-type-list
- '((us-ascii 7 nil)
- (iso-8859-1 8 "quoted-printable")
- (iso-8859-2 8 "quoted-printable")
- (iso-8859-3 8 "quoted-printable")
- (iso-8859-4 8 "quoted-printable")
- (iso-8859-5 8 "quoted-printable")
- (koi8-r 8 "quoted-printable")
- (iso-8859-7 8 "quoted-printable")
- (iso-8859-8 8 "quoted-printable")
- (iso-8859-9 8 "quoted-printable")
- (iso-2022-jp 7 "base64")
- (iso-2022-kr 7 "base64")
- (euc-kr 8 "base64")
- (gb2312 8 "quoted-printable")
- (big5 8 "base64")
- (iso-2022-jp-2 7 "base64")
- (iso-2022-int-1 7 "base64")
- ))
-
- (defun mime/encoding-name (transfer-level &optional not-omit)
- (cond ((> transfer-level 8) "binary")
- ((= transfer-level 8) "8bit")
- (not-omit "7bit")
- ))
-
- (defun mime/make-charset-default-encoding-alist (transfer-level)
- (mapcar (function
- (lambda (charset-type)
- (let ((charset (upcase (symbol-name (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))
-
-
- ;;; @ button
- ;;;
-
- (defun tm:set-face-region (b e face)
- (let ((overlay (make-overlay b e)))
- (overlay-put overlay 'face face)
- ))
-
- (defvar tm:button-face 'bold
- "Face used for content-button or URL-button of MIME-Preview buffer.
- \[tm-def.el]")
-
- (defvar tm:mouse-face 'highlight
- "Face used for MIME-preview buffer mouse highlighting. [tm-def.el]")
-
- (defvar tm:warning-face nil
- "Face used for invalid encoded-word.")
-
- (defun tm:add-button (from to func &optional data)
- "Create a button between FROM and TO with callback FUNC and data DATA."
- (and tm:button-face
- (overlay-put (make-overlay from to) 'face tm:button-face))
- (add-text-properties from to
- (append (and tm:mouse-face
- (list 'mouse-face tm:mouse-face))
- (list 'tm-callback func)
- (and data (list 'tm-data data))
- ))
- )
-
- (defvar tm:mother-button-dispatcher nil)
-
- (defun tm:button-dispatcher (event)
- "Select the button under point."
- (interactive "e")
- (let (buf point func data)
- (save-window-excursion
- (mouse-set-point event)
- (setq buf (current-buffer)
- point (point)
- func (get-text-property (point) 'tm-callback)
- data (get-text-property (point) 'tm-data)
- )
- )
- (save-excursion
- (set-buffer buf)
- (goto-char point)
- (if func
- (apply func data)
- (if (fboundp tm:mother-button-dispatcher)
- (funcall tm:mother-button-dispatcher event)
- )
- ))))
-
-
- ;;; @ for URL
- ;;;
-
- (defvar tm:URL-regexp
- "\\(http\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\):\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?[-a-zA-Z0-9_=?#$@~`%&*+|\\/.,]*[-a-zA-Z0-9_=#$@~`%&*+|\\/]")
-
- (defvar browse-url-browser-function nil)
-
- (defun tm:browse-url (&optional url)
- (if (fboundp browse-url-browser-function)
- (if url
- (funcall browse-url-browser-function url)
- (call-interactively browse-url-browser-function))
- (if (fboundp tm:mother-button-dispatcher)
- (call-interactively tm:mother-button-dispatcher)
- )
- ))
-
-
- ;;; @ PGP
- ;;;
-
- (defvar pgp-function-alist
- '(
- ;; for tm-pgp
- (verify mc-verify "mc-toplev")
- (decrypt mc-decrypt "mc-toplev")
- (fetch-key mc-pgp-fetch-key "mc-pgp")
- (snarf-keys mc-snarf-keys "mc-toplev")
- ;; for tm-edit
- (mime-sign tm:mc-pgp-sign-region "tm-edit-mc")
- (traditional-sign mc-pgp-sign-region "mc-pgp")
- (encrypt tm:mc-pgp-encrypt-region "tm-edit-mc")
- (insert-key mc-insert-public-key "mc-toplev")
- )
- "Alist of service names vs. corresponding functions and its filenames.
- Each element looks like (SERVICE FUNCTION FILE).
-
- SERVICE is a symbol of PGP processing. It allows `verify', `decrypt',
- `fetch-key', `snarf-keys', `mime-sign', `traditional-sign', `encrypt'
- or `insert-key'.
-
- Function is a symbol of function to do specified SERVICE.
-
- FILE is string of filename which has definition of corresponding
- FUNCTION.")
-
- (defmacro pgp-function (method)
- "Return function to do service METHOD."
- (` (car (cdr (assq (, method) (symbol-value 'pgp-function-alist)))))
- )
-
- (mapcar (function
- (lambda (method)
- (autoload (second method)(third method))
- ))
- pgp-function-alist)
-
-
- ;;; @ definitions about MIME
- ;;;
-
- (defconst mime/tspecials "][\000-\040()<>@,\;:\\\"/?.=")
- (defconst mime/token-regexp (concat "[^" mime/tspecials "]+"))
- (defconst mime/charset-regexp mime/token-regexp)
-
- (defconst mime/content-type-subtype-regexp
- (concat mime/token-regexp "/" mime/token-regexp))
-
- (defconst mime/disposition-type-regexp mime/token-regexp)
-
-
- ;;; @@ Base64
- ;;;
-
- (defconst base64-token-regexp "[A-Za-z0-9+/]")
- (defconst base64-token-padding-regexp "[A-Za-z0-9+/=]")
-
- (defconst mime/B-encoded-text-regexp
- (concat "\\(\\("
- base64-token-regexp
- base64-token-regexp
- base64-token-regexp
- base64-token-regexp
- "\\)*"
- base64-token-regexp
- base64-token-regexp
- base64-token-padding-regexp
- base64-token-padding-regexp
- "\\)"))
-
- (defconst mime/B-encoding-and-encoded-text-regexp
- (concat "\\(B\\)\\?" mime/B-encoded-text-regexp))
-
-
- ;;; @@ Quoted-Printable
- ;;;
-
- (defconst quoted-printable-hex-chars "0123456789ABCDEF")
- (defconst quoted-printable-octet-regexp
- (concat "=[" quoted-printable-hex-chars
- "][" quoted-printable-hex-chars "]"))
-
- (defconst mime/Q-encoded-text-regexp
- (concat "\\([^=?]\\|" quoted-printable-octet-regexp "\\)+"))
- (defconst mime/Q-encoding-and-encoded-text-regexp
- (concat "\\(Q\\)\\?" mime/Q-encoded-text-regexp))
-
-
- ;;; @ rot13-47
- ;;;
- ;; caesar-region written by phr@prep.ai.mit.edu Nov 86
- ;; modified by tower@prep Nov 86
- ;; gnus-caesar-region
- ;; Modified by umerin@flab.flab.Fujitsu.JUNET for ROT47.
- (defun tm:caesar-region (&optional n)
- "Caesar rotation of region by N, default 13, for decrypting netnews.
- ROT47 will be performed for Japanese text in any case."
- (interactive (if current-prefix-arg ; Was there a prefix arg?
- (list (prefix-numeric-value current-prefix-arg))
- (list nil)))
- (cond ((not (numberp n)) (setq n 13))
- (t (setq n (mod n 26)))) ;canonicalize N
- (if (not (zerop n)) ; no action needed for a rot of 0
- (progn
- (if (or (not (boundp 'caesar-translate-table))
- (/= (aref caesar-translate-table ?a) (+ ?a n)))
- (let ((i 0) (lower "abcdefghijklmnopqrstuvwxyz") upper)
- (message "Building caesar-translate-table...")
- (setq caesar-translate-table (make-vector 256 0))
- (while (< i 256)
- (aset caesar-translate-table i i)
- (setq i (1+ i)))
- (setq lower (concat lower lower) upper (upcase lower) i 0)
- (while (< i 26)
- (aset caesar-translate-table (+ ?a i) (aref lower (+ i n)))
- (aset caesar-translate-table (+ ?A i) (aref upper (+ i n)))
- (setq i (1+ i)))
- ;; ROT47 for Japanese text.
- ;; Thanks to ichikawa@flab.fujitsu.junet.
- (setq i 161)
- (let ((t1 (logior ?O 128))
- (t2 (logior ?! 128))
- (t3 (logior ?~ 128)))
- (while (< i 256)
- (aset caesar-translate-table i
- (let ((v (aref caesar-translate-table i)))
- (if (<= v t1) (if (< v t2) v (+ v 47))
- (if (<= v t3) (- v 47) v))))
- (setq i (1+ i))))
- (message "Building caesar-translate-table...done")))
- (let ((from (region-beginning))
- (to (region-end))
- (i 0) str len)
- (setq str (buffer-substring from to))
- (setq len (length str))
- (while (< i len)
- (aset str i (aref caesar-translate-table (aref str i)))
- (setq i (1+ i)))
- (goto-char from)
- (delete-region from to)
- (insert str)))))
-
-
- ;;; @ field
- ;;;
-
- (defun tm:set-fields (sym field-list &optional regexp-sym)
- (or regexp-sym
- (setq regexp-sym
- (let ((name (symbol-name sym)))
- (intern
- (concat (if (string-match "\\(.*\\)-list" name)
- (substring name 0 (match-end 1))
- name)
- "-regexp")
- )))
- )
- (set sym field-list)
- (set regexp-sym
- (concat "^" (apply (function regexp-or) field-list) ":"))
- )
-
- (defun tm:add-fields (sym field-list &optional regexp-sym)
- (or regexp-sym
- (setq regexp-sym
- (let ((name (symbol-name sym)))
- (intern
- (concat (if (string-match "\\(.*\\)-list" name)
- (substring name 0 (match-end 1))
- name)
- "-regexp")
- )))
- )
- (let ((fields (eval sym)))
- (mapcar (function
- (lambda (field)
- (or (member field fields)
- (setq fields (cons field fields))
- )
- ))
- (reverse field-list)
- )
- (set regexp-sym
- (concat "^" (apply (function regexp-or) fields) ":"))
- (set sym fields)
- ))
-
- (defun tm:delete-fields (sym field-list &optional regexp-sym)
- (or regexp-sym
- (setq regexp-sym
- (let ((name (symbol-name sym)))
- (intern
- (concat (if (string-match "\\(.*\\)-list" name)
- (substring name 0 (match-end 1))
- name)
- "-regexp")
- )))
- )
- (let ((fields (eval sym)))
- (mapcar (function
- (lambda (field)
- (setq fields (delete field fields))
- ))
- field-list)
- (set regexp-sym
- (concat "^" (apply (function regexp-or) fields) ":"))
- (set sym fields)
- ))
-
-
- ;;; @ end
- ;;;
-
- (provide 'tm-def)
-
- ;;; tm-def.el ends here
-