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 7.45 1996/05/31 17:52:07 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 ;;; @ leading-character and charset
59 (defvar mime/lc-charset-alist
63 (cons (cons (foldr (function
66 (cons (symbol-value sym) a)
76 '(((charset-ascii) . "US-ASCII")
78 charset-latin-1) . "ISO-8859-1")
80 charset-latin-2) . "ISO-8859-2")
82 charset-latin-3) . "ISO-8859-3")
84 charset-latin-4) . "ISO-8859-4")
86 ;;; charset-cyrillic) . "ISO-8859-5")
88 charset-cyrillic) . "KOI8-R")
90 charset-arabic) . "ISO-8859-6")
92 charset-greek) . "ISO-8859-7")
94 charset-hebrew) . "ISO-8859-8")
96 charset-latin-5) . "ISO-8859-9")
98 charset-jisx0208) . "ISO-2022-JP")
100 charset-ksc5601) . "EUC-KR")
103 charset-big5-2) . "BIG5")
110 charset-greek) . "ISO-2022-JP-2")
119 charset-greek) . "ISO-2022-INT-1")
122 (defvar mime/unknown-charset "ISO-2022-INT-1")
125 ;;; @ charset and encoding
128 (defun mime/find-charset (lcl)
130 (or (cdr (some-element
133 (subsetp lcl (car elt))
135 mime/lc-charset-alist)
137 mime/unknown-charset)
140 (defun mime/find-charset-region (beg end)
141 (mime/find-charset (cons charset-ascii (find-charset-region beg end)))
144 (defvar mime/charset-type-list
146 ("ISO-8859-1" 8 "quoted-printable")
147 ("ISO-8859-2" 8 "quoted-printable")
148 ("ISO-8859-3" 8 "quoted-printable")
149 ("ISO-8859-4" 8 "quoted-printable")
150 ("ISO-8859-5" 8 "quoted-printable")
151 ("KOI8-R" 8 "quoted-printable")
152 ("ISO-8859-7" 8 "quoted-printable")
153 ("ISO-8859-8" 8 "quoted-printable")
154 ("ISO-8859-9" 8 "quoted-printable")
155 ("ISO-2022-JP" 7 "base64")
156 ("ISO-2022-KR" 7 "base64")
157 ("EUC-KR" 8 "base64")
159 ("ISO-2022-JP-2" 7 "base64")
160 ("ISO-2022-INT-1" 7 "base64")
163 (defun mime/encoding-name (transfer-level &optional not-omit)
164 (cond ((> transfer-level 8) "binary")
165 ((= transfer-level 8) "8bit")
169 (defun mime/make-charset-default-encoding-alist (transfer-level)
171 (lambda (charset-type)
172 (let ((charset (car charset-type))
173 (type (nth 1 charset-type))
174 (encoding (nth 2 charset-type))
176 (if (<= type transfer-level)
177 (cons charset (mime/encoding-name type))
178 (cons charset encoding)
180 mime/charset-type-list))
186 (defvar mime/charset-coding-system-alist
188 (f (if (and running-xemacs-20 (featurep 'mule))
190 (setq csl (coding-system-list))
193 (if (memq (cdr cell) csl)
198 (let ((sym (symbol-concat "*" (cdr cell) "*")))
200 (cons (cons (car cell) (symbol-value sym)) a)
204 '(("ISO-2022-JP" . junet)
205 ("ISO-2022-KR" . iso-2022-kr)
207 ("ISO-8859-1" . ctext)
208 ("ISO-8859-2" . iso-8859-2)
209 ("ISO-8859-3" . iso-8859-3)
210 ("ISO-8859-4" . iso-8859-4)
211 ("ISO-8859-5" . iso-8859-5)
213 ("ISO-8859-7" . iso-8859-7)
214 ("ISO-8859-8" . iso-8859-8)
215 ("ISO-8859-9" . iso-8859-9)
216 ("ISO-2022-JP-2" . iso-2022-ss2-7)
217 ("X-ISO-2022-JP-2" . iso-2022-ss2-7)
218 ("ISO-2022-INT-1" . iso-2022-int-1)
220 ("X-SHIFTJIS" . sjis)
224 (defvar mime/default-coding-system *ctext*)
226 (defun mime-charset-encode-string (str charset)
227 (let ((cs (assoc charset mime/charset-coding-system-alist)))
229 (character-encode-string str (cdr cs))
232 (defun mime-charset-decode-string (str charset)
233 (let ((cs (assoc charset mime/charset-coding-system-alist)))
235 (character-decode-string str (cdr cs))
238 (defun mime-charset-encode-region (beg end charset &optional encoding)
240 (if (stringp charset)
241 (cdr (assoc (upcase charset) mime/charset-coding-system-alist))
242 mime/default-coding-system)))
244 (character-encode-region beg end ct)
247 (defun mime-charset-decode-region (beg end charset &optional encoding)
249 (if (stringp charset)
250 (cdr (assoc (upcase charset) mime/charset-coding-system-alist))
251 mime/default-coding-system)))
253 (character-decode-region beg end ct)
260 (defun tm:set-face-region (b e face)
261 (let ((overlay (tl:make-overlay b e)))
262 (tl:overlay-put overlay 'face face)
265 (setq tm:button-face 'bold)
266 (setq tm:mouse-face 'highlight)
268 (defun tm:add-button (from to func &optional data)
269 "Create a button between FROM and TO with callback FUNC and data DATA."
271 (tl:overlay-put (tl:make-overlay from to) 'face tm:button-face))
272 (tl:add-text-properties from to
273 (append (and tm:mouse-face
274 (list 'mouse-face tm:mouse-face))
275 (list 'tm-callback func)
276 (and data (list 'tm-data data))
280 (defvar tm:mother-button-dispatcher nil)
282 (defun tm:button-dispatcher (event)
283 "Select the button under point."
285 (mouse-set-point event)
286 (let ((func (get-text-property (point) 'tm-callback))
287 (data (get-text-property (point) 'tm-data))
291 (if (fboundp tm:mother-button-dispatcher)
292 (funcall tm:mother-button-dispatcher event)
300 (defvar tm:URL-regexp
301 "\\(http\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\):\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?[-a-zA-Z0-9_=?#$@~`%&*+|\\/.,]*[-a-zA-Z0-9_=#$@~`%&*+|\\/]")
303 (defvar browse-url-browser-function nil)
305 (defun tm:browse-url (&optional url)
306 (if (fboundp browse-url-browser-function)
308 (funcall browse-url-browser-function url)
309 (call-interactively browse-url-browser-function))
310 (if (fboundp tm:mother-button-dispatcher)
311 (call-interactively tm:mother-button-dispatcher)
316 ;;; @ definitions about MIME
319 (defconst mime/tspecials "][\000-\040()<>@,\;:\\\"/?.=")
320 (defconst mime/token-regexp (concat "[^" mime/tspecials "]+"))
321 (defconst mime/charset-regexp mime/token-regexp)
323 (defconst mime/content-type-subtype-regexp
324 (concat mime/token-regexp "/" mime/token-regexp))
325 (defconst mime/content-parameter-value-regexp
327 rfc822/quoted-string-regexp
330 (defconst mime/disposition-type-regexp mime/token-regexp)
336 (defconst base64-token-regexp "[A-Za-z0-9+/=]")
338 (defconst mime/B-encoded-text-regexp
345 (defconst mime/B-encoding-and-encoded-text-regexp
346 (concat "\\(B\\)\\?" mime/B-encoded-text-regexp))
349 ;;; @@ Quoted-Printable
352 (defconst quoted-printable-hex-chars "0123456789ABCDEF")
353 (defconst quoted-printable-octet-regexp
354 (concat "=[" quoted-printable-hex-chars
355 "][" quoted-printable-hex-chars "]"))
357 (defconst mime/Q-encoded-text-regexp
358 (concat "\\([^=?]\\|" quoted-printable-octet-regexp "\\)+"))
359 (defconst mime/Q-encoding-and-encoded-text-regexp
360 (concat "\\(Q\\)\\?" mime/Q-encoded-text-regexp))
365 ;; caesar-region written by phr@prep.ai.mit.edu Nov 86
366 ;; modified by tower@prep Nov 86
367 ;; gnus-caesar-region
368 ;; Modified by umerin@flab.flab.Fujitsu.JUNET for ROT47.
369 (defun tm:caesar-region (&optional n)
370 "Caesar rotation of region by N, default 13, for decrypting netnews.
371 ROT47 will be performed for Japanese text in any case."
372 (interactive (if current-prefix-arg ; Was there a prefix arg?
373 (list (prefix-numeric-value current-prefix-arg))
375 (cond ((not (numberp n)) (setq n 13))
376 (t (setq n (mod n 26)))) ;canonicalize N
377 (if (not (zerop n)) ; no action needed for a rot of 0
379 (if (or (not (boundp 'caesar-translate-table))
380 (/= (aref caesar-translate-table ?a) (+ ?a n)))
381 (let ((i 0) (lower "abcdefghijklmnopqrstuvwxyz") upper)
382 (message "Building caesar-translate-table...")
383 (setq caesar-translate-table (make-vector 256 0))
385 (aset caesar-translate-table i i)
387 (setq lower (concat lower lower) upper (upcase lower) i 0)
389 (aset caesar-translate-table (+ ?a i) (aref lower (+ i n)))
390 (aset caesar-translate-table (+ ?A i) (aref upper (+ i n)))
392 ;; ROT47 for Japanese text.
393 ;; Thanks to ichikawa@flab.fujitsu.junet.
395 (let ((t1 (logior ?O 128))
397 (t3 (logior ?~ 128)))
399 (aset caesar-translate-table i
400 (let ((v (aref caesar-translate-table i)))
401 (if (<= v t1) (if (< v t2) v (+ v 47))
402 (if (<= v t3) (- v 47) v))))
404 (message "Building caesar-translate-table...done")))
405 (let ((from (region-beginning))
408 (setq str (buffer-substring from to))
409 (setq len (length str))
411 (aset str i (aref caesar-translate-table (aref str i)))
414 (delete-region from to)
421 (defun tm:set-fields (sym field-list &optional regexp-sym)
424 (let ((name (symbol-name sym)))
426 (concat (if (string-match "\\(.*\\)-list" name)
427 (substring name 0 (match-end 1))
434 (concat "^" (apply (function regexp-or) field-list) ":"))
437 (defun tm:add-fields (sym field-list &optional regexp-sym)
440 (let ((name (symbol-name sym)))
442 (concat (if (string-match "\\(.*\\)-list" name)
443 (substring name 0 (match-end 1))
448 (let ((fields (eval sym)))
451 (or (member field fields)
452 (setq fields (cons field fields))
458 (concat "^" (apply (function regexp-or) fields) ":"))
462 (defun tm:delete-fields (sym field-list &optional regexp-sym)
465 (let ((name (symbol-name sym)))
467 (concat (if (string-match "\\(.*\\)-list" name)
468 (substring name 0 (match-end 1))
473 (let ((fields (eval sym)))
476 (setq fields (delete field fields))
480 (concat "^" (apply (function regexp-or) fields) ":"))
490 ;;; tm-def.el ends here