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 7.42 1996/05/09 18:24:39 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 '(((lc-ascii) . "US-ASCII")
77 ((lc-ascii lc-ltn1) . "ISO-8859-1")
78 ((lc-ascii lc-ltn2) . "ISO-8859-2")
79 ((lc-ascii lc-ltn3) . "ISO-8859-3")
80 ((lc-ascii lc-ltn4) . "ISO-8859-4")
81 ;;; ((lc-ascii lc-crl) . "ISO-8859-5")
82 ((lc-ascii lc-crl) . "KOI8-R")
83 ((lc-ascii lc-grk) . "ISO-8859-7")
84 ((lc-ascii lc-hbw) . "ISO-8859-8")
85 ((lc-ascii lc-ltn5) . "ISO-8859-9")
86 ((lc-ascii lc-jp) . "ISO-2022-JP")
87 ((lc-ascii lc-kr) . "EUC-KR")
94 lc-ltn1 lc-grk) . "ISO-2022-JP-2")
99 lc-ltn1 lc-grk) . "ISO-2022-INT-1")
102 (defvar mime/unknown-charset "ISO-2022-INT-1")
105 ;;; @ charset and encoding
108 (defun mime/find-charset (lcl)
110 (or (cdr (some-element
113 (subsetp lcl (car elt))
115 mime/lc-charset-alist)
117 mime/unknown-charset)
120 (defun mime/find-charset-region (beg end)
121 (mime/find-charset (cons lc-ascii (find-charset-region beg end)))
124 (defvar mime/charset-type-list
126 ("ISO-8859-1" 8 "quoted-printable")
127 ("ISO-8859-2" 8 "quoted-printable")
128 ("ISO-8859-3" 8 "quoted-printable")
129 ("ISO-8859-4" 8 "quoted-printable")
130 ("ISO-8859-5" 8 "quoted-printable")
131 ("KOI8-R" 8 "quoted-printable")
132 ("ISO-8859-7" 8 "quoted-printable")
133 ("ISO-8859-8" 8 "quoted-printable")
134 ("ISO-8859-9" 8 "quoted-printable")
135 ("ISO-2022-JP" 7 "base64")
136 ("ISO-2022-KR" 7 "base64")
137 ("EUC-KR" 8 "base64")
139 ("ISO-2022-JP-2" 7 "base64")
140 ("ISO-2022-INT-1" 7 "base64")
143 (defun mime/encoding-name (transfer-level &optional not-omit)
144 (cond ((> transfer-level 8) "binary")
145 ((= transfer-level 8) "8bit")
149 (defun mime/make-charset-default-encoding-alist (transfer-level)
151 (lambda (charset-type)
152 (let ((charset (car charset-type))
153 (type (nth 1 charset-type))
154 (encoding (nth 2 charset-type))
156 (if (<= type transfer-level)
157 (cons charset (mime/encoding-name type))
158 (cons charset encoding)
160 mime/charset-type-list))
166 (defvar mime/charset-coding-system-alist
168 (f (if (and running-xemacs-20 (featurep 'mule))
170 (setq csl (coding-system-list))
173 (if (memq (cdr cell) csl)
178 (let ((sym (symbol-concat "*" (cdr cell) "*")))
180 (cons (cons (car cell) (symbol-value sym)) a)
184 '(("ISO-2022-JP" . junet)
185 ("ISO-2022-KR" . iso-2022-kr)
187 ("ISO-8859-1" . ctext)
188 ("ISO-8859-2" . iso-8859-2)
189 ("ISO-8859-3" . iso-8859-3)
190 ("ISO-8859-4" . iso-8859-4)
191 ("ISO-8859-5" . iso-8859-5)
193 ("ISO-8859-7" . iso-8859-7)
194 ("ISO-8859-8" . iso-8859-8)
195 ("ISO-8859-9" . iso-8859-9)
196 ("ISO-2022-JP-2" . iso-2022-ss2-7)
197 ("X-ISO-2022-JP-2" . iso-2022-ss2-7)
198 ("ISO-2022-INT-1" . iso-2022-int-1)
200 ("X-SHIFTJIS" . sjis)
204 (defvar mime/default-coding-system *ctext*)
206 (defun mime-charset-encode-string (str charset)
207 (let ((cs (assoc charset mime/charset-coding-system-alist)))
209 (character-encode-string str (cdr cs))
212 (defun mime-charset-decode-string (str charset)
213 (let ((cs (assoc charset mime/charset-coding-system-alist)))
215 (character-decode-string str (cdr cs))
218 (defun mime-charset-encode-region (beg end charset &optional encoding)
220 (if (stringp charset)
221 (cdr (assoc (upcase charset) mime/charset-coding-system-alist))
222 mime/default-coding-system)))
224 (character-encode-region beg end ct)
227 (defun mime-charset-decode-region (beg end charset &optional encoding)
229 (if (stringp charset)
230 (cdr (assoc (upcase charset) mime/charset-coding-system-alist))
231 mime/default-coding-system)))
233 (character-decode-region beg end ct)
240 (defun tm:set-face-region (b e face)
241 (let ((overlay (tl:make-overlay b e)))
242 (tl:overlay-put overlay 'face face)
245 (setq tm:button-face 'bold)
246 (setq tm:mouse-face 'highlight)
248 (defun tm:add-button (from to func &optional data)
249 "Create a button between FROM and TO with callback FUNC and data DATA."
251 (tl:overlay-put (tl:make-overlay from to) 'face tm:button-face))
252 (tl:add-text-properties from to
253 (append (and tm:mouse-face
254 (list 'mouse-face tm:mouse-face))
255 (list 'tm-callback func)
256 (and data (list 'tm-data data))
260 (defvar tm:mother-button-dispatcher nil)
262 (defun tm:button-dispatcher (event)
263 "Select the button under point."
265 (mouse-set-point event)
266 (let ((func (get-text-property (point) 'tm-callback))
267 (data (get-text-property (point) 'tm-data))
271 (if (fboundp tm:mother-button-dispatcher)
272 (funcall tm:mother-button-dispatcher event)
280 (defvar tm:URL-regexp
281 "\\(http\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\):\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?[-a-zA-Z0-9_=?#$@~`%&*+|\\/.,]*[-a-zA-Z0-9_=#$@~`%&*+|\\/]")
283 (defvar browse-url-browser-function nil)
285 (defun tm:browse-url (&optional url)
286 (if (fboundp browse-url-browser-function)
287 (call-interactively browse-url-browser-function)
288 (if (fboundp tm:mother-button-dispatcher)
289 (call-interactively tm:mother-button-dispatcher)
294 ;;; @ definitions about MIME
297 (defconst mime/tspecials "][\000-\040()<>@,\;:\\\"/?.=")
298 (defconst mime/token-regexp (concat "[^" mime/tspecials "]+"))
299 (defconst mime/charset-regexp mime/token-regexp)
301 (defconst mime/content-type-subtype-regexp
302 (concat mime/token-regexp "/" mime/token-regexp))
303 (defconst mime/content-parameter-value-regexp
305 rfc822/quoted-string-regexp
308 (defconst mime/disposition-type-regexp mime/token-regexp)
314 (defconst base64-token-regexp "[A-Za-z0-9+/=]")
316 (defconst mime/B-encoded-text-regexp
323 (defconst mime/B-encoding-and-encoded-text-regexp
324 (concat "\\(B\\)\\?" mime/B-encoded-text-regexp))
327 ;;; @@ Quoted-Printable
330 (defconst quoted-printable-hex-chars "0123456789ABCDEF")
331 (defconst quoted-printable-octet-regexp
332 (concat "=[" quoted-printable-hex-chars
333 "][" quoted-printable-hex-chars "]"))
335 (defconst mime/Q-encoded-text-regexp
336 (concat "\\([^=?]\\|" quoted-printable-octet-regexp "\\)+"))
337 (defconst mime/Q-encoding-and-encoded-text-regexp
338 (concat "\\(Q\\)\\?" mime/Q-encoded-text-regexp))
343 ;; caesar-region written by phr@prep.ai.mit.edu Nov 86
344 ;; modified by tower@prep Nov 86
345 ;; gnus-caesar-region
346 ;; Modified by umerin@flab.flab.Fujitsu.JUNET for ROT47.
347 (defun tm:caesar-region (&optional n)
348 "Caesar rotation of region by N, default 13, for decrypting netnews.
349 ROT47 will be performed for Japanese text in any case."
350 (interactive (if current-prefix-arg ; Was there a prefix arg?
351 (list (prefix-numeric-value current-prefix-arg))
353 (cond ((not (numberp n)) (setq n 13))
354 (t (setq n (mod n 26)))) ;canonicalize N
355 (if (not (zerop n)) ; no action needed for a rot of 0
357 (if (or (not (boundp 'caesar-translate-table))
358 (/= (aref caesar-translate-table ?a) (+ ?a n)))
359 (let ((i 0) (lower "abcdefghijklmnopqrstuvwxyz") upper)
360 (message "Building caesar-translate-table...")
361 (setq caesar-translate-table (make-vector 256 0))
363 (aset caesar-translate-table i i)
365 (setq lower (concat lower lower) upper (upcase lower) i 0)
367 (aset caesar-translate-table (+ ?a i) (aref lower (+ i n)))
368 (aset caesar-translate-table (+ ?A i) (aref upper (+ i n)))
370 ;; ROT47 for Japanese text.
371 ;; Thanks to ichikawa@flab.fujitsu.junet.
373 (let ((t1 (logior ?O 128))
375 (t3 (logior ?~ 128)))
377 (aset caesar-translate-table i
378 (let ((v (aref caesar-translate-table i)))
379 (if (<= v t1) (if (< v t2) v (+ v 47))
380 (if (<= v t3) (- v 47) v))))
382 (message "Building caesar-translate-table...done")))
383 (let ((from (region-beginning))
386 (setq str (buffer-substring from to))
387 (setq len (length str))
389 (aset str i (aref caesar-translate-table (aref str i)))
392 (delete-region from to)
399 (defun tm:set-fields (sym field-list &optional regexp-sym)
402 (let ((name (symbol-name sym)))
404 (concat (if (string-match "\\(.*\\)-list" name)
405 (substring name 0 (match-end 1))
412 (concat "^" (apply (function regexp-or) field-list) ":"))
415 (defun tm:add-fields (sym field-list &optional regexp-sym)
418 (let ((name (symbol-name sym)))
420 (concat (if (string-match "\\(.*\\)-list" name)
421 (substring name 0 (match-end 1))
426 (let ((fields (eval sym)))
429 (or (member field fields)
430 (setq fields (cons field fields))
436 (concat "^" (apply (function regexp-or) fields) ":"))
440 (defun tm:delete-fields (sym field-list &optional regexp-sym)
443 (let ((name (symbol-name sym)))
445 (concat (if (string-match "\\(.*\\)-list" name)
446 (substring name 0 (match-end 1))
451 (let ((fields (eval sym)))
454 (setq fields (delete field fields))
458 (concat "^" (apply (function regexp-or) fields) ":"))
468 ;;; tm-def.el ends here