2 ;;; tm-def.el --- definition module for tm
4 ;;; Copyright (C) 1995 Free Software Foundation, Inc.
5 ;;; Copyright (C) 1995,1996 MORIOKA Tomohiko
7 ;;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
9 ;;; $Id: tm-def.el,v 7.15 1996/02/06 02:43:06 morioka Exp $
10 ;;; Keywords: mail, news, MIME, multimedia, definition
12 ;;; This file is part of tm (Tools for MIME).
14 ;;; This program is free software; you can redistribute it and/or
15 ;;; modify it under the terms of the GNU General Public License as
16 ;;; published by the Free Software Foundation; either version 2, or
17 ;;; (at your option) any later version.
19 ;;; This program is distributed in the hope that it will be useful,
20 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
21 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 ;;; General Public License for more details.
24 ;;; You should have received a copy of the GNU General Public License
25 ;;; along with This program. If not, write to the Free Software
26 ;;; Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
37 (defvar mime/tmp-dir (or (getenv "TM_TMP_DIR") "/tmp/"))
39 (defvar mime/use-multi-frame
40 (and (>= emacs-major-version 19) window-system))
42 (defvar mime/find-file-function
43 (if mime/use-multi-frame
44 (function find-file-other-frame)
52 (defconst mime/output-buffer-name "*MIME-out*")
53 (defconst mime/temp-buffer-name " *MIME-temp*")
56 ;;; @ for various Emacs variants
59 (cond ((boundp 'MULE) (require 'tm-mule))
60 ((boundp 'NEMACS)(require 'tm-nemacs))
61 (t (require 'tm-orig))
65 ;;; @ charset and encoding
68 (defun mime/find-charset (lcl)
70 (or (cdr (some-element
73 (subsetp lcl (car elt))
75 mime/lc-charset-alist)
80 (defun mime/find-charset-region (beg end)
81 (mime/find-charset (cons lc-ascii (find-charset-region beg end)))
84 (defvar mime/charset-type-list
86 ("ISO-8859-1" 8 "quoted-printable")
87 ("ISO-8859-2" 8 "quoted-printable")
88 ("ISO-8859-3" 8 "quoted-printable")
89 ("ISO-8859-4" 8 "quoted-printable")
90 ("ISO-8859-5" 8 "quoted-printable")
91 ("KOI8-R" 8 "quoted-printable")
92 ("ISO-8859-7" 8 "quoted-printable")
93 ("ISO-8859-8" 8 "quoted-printable")
94 ("ISO-8859-9" 8 "quoted-printable")
95 ("ISO-2022-JP" 7 "base64")
96 ("ISO-2022-KR" 7 "base64")
98 ("ISO-2022-JP-2" 7 "base64")
99 ("ISO-2022-INT-1" 7 "base64")
102 (defun mime/encoding-name (transfer-level)
103 (cond ((> transfer-level 8) "binary")
104 ((= transfer-level 8) "8bit")
107 (defun mime/make-charset-default-encoding-alist (transfer-level)
109 (lambda (charset-type)
110 (let ((charset (car charset-type))
111 (type (nth 1 charset-type))
112 (encoding (nth 2 charset-type))
114 (if (<= type transfer-level)
115 (cons charset (mime/encoding-name type))
116 (cons charset encoding)
118 mime/charset-type-list))
120 (defvar mime/default-transfer-level 7
121 "*A number of network transfer level. It should be 7 or 8.")
123 (defvar mime/charset-default-encoding-alist
124 (mime/make-charset-default-encoding-alist mime/default-transfer-level))
126 (defun mime/text-toggle-transfer-level (&optional transfer-level)
127 "Toggle transfer-level is 7bit or 8bit through.
129 Optional TRANSFER-LEVEL is a number of transfer-level, 7 or 8."
131 (if (numberp transfer-level)
132 (setq mime/default-transfer-level transfer-level)
133 (if (< mime/default-transfer-level 8)
134 (setq mime/default-transfer-level 8)
135 (setq mime/default-transfer-level 7)
137 (setq mime/charset-default-encoding-alist
138 (mime/make-charset-default-encoding-alist
139 mime/default-transfer-level))
140 (message (format "Current transfer-level is %d bit"
141 mime/default-transfer-level))
148 (defvar mime/default-coding-system *ctext*)
154 (defun tm:set-face-region (b e face)
155 (let ((overlay (tl:make-overlay b e)))
156 (tl:overlay-put overlay 'face face)
159 (setq tm:button-face 'bold)
160 (setq tm:mouse-face 'highlight)
162 (defun tm:add-button (from to func &optional data)
163 "Create a button between FROM and TO with callback FUNC and data DATA."
165 (tl:overlay-put (tl:make-overlay from to) 'face tm:button-face))
166 (tl:add-text-properties from to
167 (append (and tm:mouse-face
168 (list 'mouse-face tm:mouse-face))
169 (list 'tm-callback func)
170 (and data (list 'tm-data data))
174 (defvar tm:mother-button-dispatcher nil)
176 (defun tm:button-dispatcher (event)
177 "Select the button under point."
179 (mouse-set-point event)
180 (let ((func (get-text-property (point) 'tm-callback))
181 (data (get-text-property (point) 'tm-data))
185 (if (fboundp tm:mother-button-dispatcher)
186 (funcall tm:mother-button-dispatcher event)
194 (defvar tm:URL-regexp
195 "\\(http\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\):\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?[-a-zA-Z0-9_=?#$@~`%&*+|\\/.,]*[-a-zA-Z0-9_=#$@~`%&*+|\\/]")
197 (defvar browse-url-browser-function nil)
199 (defun tm:browse-url (&optional url)
200 (if (fboundp browse-url-browser-function)
201 (call-interactively browse-url-browser-function)
202 (if (fboundp tm:mother-button-dispatcher)
203 (call-interactively tm:mother-button-dispatcher)
208 ;;; @ definitions about MIME
211 (defconst mime/tspecials "][\000-\040()<>@,\;:\\\"/?.=")
212 (defconst mime/token-regexp (concat "[^" mime/tspecials "]+"))
213 (defconst mime/charset-regexp mime/token-regexp)
215 (defconst mime/content-type-subtype-regexp
216 (concat mime/token-regexp "/" mime/token-regexp))
217 (defconst mime/content-parameter-value-regexp
219 rfc822/quoted-string-regexp
222 (defconst mime/disposition-type-regexp mime/token-regexp)
228 (defconst base64-token-regexp "[A-Za-z0-9+/=]")
230 (defconst mime/B-encoded-text-regexp
237 (defconst mime/B-encoding-and-encoded-text-regexp
238 (concat "\\(B\\)\\?" mime/B-encoded-text-regexp))
241 ;;; @@ Quoted-Printable
244 (defconst quoted-printable-hex-chars "0123456789ABCDEF")
245 (defconst quoted-printable-octet-regexp
246 (concat "=[" quoted-printable-hex-chars
247 "][" quoted-printable-hex-chars "]"))
249 (defconst mime/Q-encoded-text-regexp
250 (concat "\\([^=?]\\|" quoted-printable-octet-regexp "\\)+"))
251 (defconst mime/Q-encoding-and-encoded-text-regexp
252 (concat "\\(Q\\)\\?" mime/Q-encoded-text-regexp))
257 ;; caesar-region written by phr@prep.ai.mit.edu Nov 86
258 ;; modified by tower@prep Nov 86
259 ;; gnus-caesar-region
260 ;; Modified by umerin@flab.flab.Fujitsu.JUNET for ROT47.
261 (defun tm:caesar-region (&optional n)
262 "Caesar rotation of region by N, default 13, for decrypting netnews.
263 ROT47 will be performed for Japanese text in any case."
264 (interactive (if current-prefix-arg ; Was there a prefix arg?
265 (list (prefix-numeric-value current-prefix-arg))
267 (cond ((not (numberp n)) (setq n 13))
268 (t (setq n (mod n 26)))) ;canonicalize N
269 (if (not (zerop n)) ; no action needed for a rot of 0
271 (if (or (not (boundp 'caesar-translate-table))
272 (/= (aref caesar-translate-table ?a) (+ ?a n)))
273 (let ((i 0) (lower "abcdefghijklmnopqrstuvwxyz") upper)
274 (message "Building caesar-translate-table...")
275 (setq caesar-translate-table (make-vector 256 0))
277 (aset caesar-translate-table i i)
279 (setq lower (concat lower lower) upper (upcase lower) i 0)
281 (aset caesar-translate-table (+ ?a i) (aref lower (+ i n)))
282 (aset caesar-translate-table (+ ?A i) (aref upper (+ i n)))
284 ;; ROT47 for Japanese text.
285 ;; Thanks to ichikawa@flab.fujitsu.junet.
287 (let ((t1 (logior ?O 128))
289 (t3 (logior ?~ 128)))
291 (aset caesar-translate-table i
292 (let ((v (aref caesar-translate-table i)))
293 (if (<= v t1) (if (< v t2) v (+ v 47))
294 (if (<= v t3) (- v 47) v))))
296 (message "Building caesar-translate-table...done")))
297 (let ((from (region-beginning))
300 (setq str (buffer-substring from to))
301 (setq len (length str))
303 (aset str i (aref caesar-translate-table (aref str i)))
306 (delete-region from to)
313 (defun tm:set-fields (sym field-list &optional regexp-sym)
316 (let ((name (symbol-name sym)))
318 (concat (if (string-match "\\(.*\\)-list" name)
319 (substring name 0 (match-end 1))
326 (concat "^" (apply (function regexp-or) field-list) ":"))
329 (defun tm:add-fields (sym field-list &optional regexp-sym)
332 (let ((name (symbol-name sym)))
334 (concat (if (string-match "\\(.*\\)-list" name)
335 (substring name 0 (match-end 1))
340 (let ((fields (eval sym)))
343 (or (member field fields)
344 (setq fields (cons field fields))
350 (concat "^" (apply (function regexp-or) fields) ":"))
354 (defun tm:delete-fields (sym field-list &optional regexp-sym)
357 (let ((name (symbol-name sym)))
359 (concat (if (string-match "\\(.*\\)-list" name)
360 (substring name 0 (match-end 1))
365 (let ((fields (eval sym)))
368 (setq fields (delete field fields))
372 (concat "^" (apply (function regexp-or) fields) ":"))
382 ;;; tm-def.el ends here