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 7.33 1996/04/22 12:40:55 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")
91 lc-ltn1 lc-grk) . "ISO-2022-JP-2")
96 lc-ltn1 lc-grk) . "ISO-2022-INT-1")
99 (defvar mime/unknown-charset "ISO-2022-INT-1")
102 ;;; @ charset and encoding
105 (defun mime/find-charset (lcl)
107 (or (cdr (some-element
110 (subsetp lcl (car elt))
112 mime/lc-charset-alist)
114 mime/unknown-charset)
117 (defun mime/find-charset-region (beg end)
118 (mime/find-charset (cons lc-ascii (find-charset-region beg end)))
121 (defvar mime/charset-type-list
123 ("ISO-8859-1" 8 "quoted-printable")
124 ("ISO-8859-2" 8 "quoted-printable")
125 ("ISO-8859-3" 8 "quoted-printable")
126 ("ISO-8859-4" 8 "quoted-printable")
127 ("ISO-8859-5" 8 "quoted-printable")
128 ("KOI8-R" 8 "quoted-printable")
129 ("ISO-8859-7" 8 "quoted-printable")
130 ("ISO-8859-8" 8 "quoted-printable")
131 ("ISO-8859-9" 8 "quoted-printable")
132 ("ISO-2022-JP" 7 "base64")
133 ("ISO-2022-KR" 7 "base64")
134 ("EUC-KR" 8 "base64")
135 ("ISO-2022-JP-2" 7 "base64")
136 ("ISO-2022-INT-1" 7 "base64")
139 (defun mime/encoding-name (transfer-level &optional not-omit)
140 (cond ((> transfer-level 8) "binary")
141 ((= transfer-level 8) "8bit")
145 (defun mime/make-charset-default-encoding-alist (transfer-level)
147 (lambda (charset-type)
148 (let ((charset (car charset-type))
149 (type (nth 1 charset-type))
150 (encoding (nth 2 charset-type))
152 (if (<= type transfer-level)
153 (cons charset (mime/encoding-name type))
154 (cons charset encoding)
156 mime/charset-type-list))
162 (defvar mime/charset-coding-system-alist
165 (if (boundp (cdr cell))
166 (cons (cons (car cell) (symbol-value (cdr cell))) a)
169 '(("ISO-2022-JP" . *junet*)
170 ("ISO-2022-KR" . *iso-2022-kr*)
171 ("EUC-KR" . *euc-kr*)
172 ("ISO-8859-1" . *ctext*)
173 ("ISO-8859-2" . *iso-8859-2*)
174 ("ISO-8859-3" . *iso-8859-3*)
175 ("ISO-8859-4" . *iso-8859-4*)
176 ("ISO-8859-5" . *iso-8859-5*)
178 ("ISO-8859-7" . *iso-8859-7*)
179 ("ISO-8859-8" . *iso-8859-8*)
180 ("ISO-8859-9" . *iso-8859-9*)
181 ("ISO-2022-JP-2" . *iso-2022-ss2-7*)
182 ("X-ISO-2022-JP-2" . *iso-2022-ss2-7*)
183 ("ISO-2022-INT-1" . *iso-2022-int-1*)
184 ("SHIFT_JIS" . *sjis*)
185 ("X-SHIFTJIS" . *sjis*)
188 (defvar mime/default-coding-system *ctext*)
190 (defun mime/convert-string-to-emacs (str charset)
191 (let ((cs (cdr (assoc charset mime/charset-coding-system-alist))))
193 (code-convert-string str cs *internal*)
196 (defun mime/convert-string-from-emacs (str charset)
197 (let ((cs (cdr (assoc charset mime/charset-coding-system-alist))))
199 (code-convert-string str *internal* cs)
202 (defun mime/code-convert-region-to-emacs (beg end charset &optional encoding)
204 (if (stringp charset)
205 (cdr (assoc (upcase charset) mime/charset-coding-system-alist))
206 mime/default-coding-system)))
208 (code-convert-region beg end ct *internal*)
211 (defun mime/code-convert-region-from-emacs (beg end charset &optional encoding)
213 (if (stringp charset)
214 (cdr (assoc (upcase charset) mime/charset-coding-system-alist))
215 mime/default-coding-system)))
217 (code-convert-region beg end *internal* ct)
224 (defun tm:set-face-region (b e face)
225 (let ((overlay (tl:make-overlay b e)))
226 (tl:overlay-put overlay 'face face)
229 (setq tm:button-face 'bold)
230 (setq tm:mouse-face 'highlight)
232 (defun tm:add-button (from to func &optional data)
233 "Create a button between FROM and TO with callback FUNC and data DATA."
235 (tl:overlay-put (tl:make-overlay from to) 'face tm:button-face))
236 (tl:add-text-properties from to
237 (append (and tm:mouse-face
238 (list 'mouse-face tm:mouse-face))
239 (list 'tm-callback func)
240 (and data (list 'tm-data data))
244 (defvar tm:mother-button-dispatcher nil)
246 (defun tm:button-dispatcher (event)
247 "Select the button under point."
249 (mouse-set-point event)
250 (let ((func (get-text-property (point) 'tm-callback))
251 (data (get-text-property (point) 'tm-data))
255 (if (fboundp tm:mother-button-dispatcher)
256 (funcall tm:mother-button-dispatcher event)
264 (defvar tm:URL-regexp
265 "\\(http\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\):\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?[-a-zA-Z0-9_=?#$@~`%&*+|\\/.,]*[-a-zA-Z0-9_=#$@~`%&*+|\\/]")
267 (defvar browse-url-browser-function nil)
269 (defun tm:browse-url (&optional url)
270 (if (fboundp browse-url-browser-function)
271 (call-interactively browse-url-browser-function)
272 (if (fboundp tm:mother-button-dispatcher)
273 (call-interactively tm:mother-button-dispatcher)
278 ;;; @ definitions about MIME
281 (defconst mime/tspecials "][\000-\040()<>@,\;:\\\"/?.=")
282 (defconst mime/token-regexp (concat "[^" mime/tspecials "]+"))
283 (defconst mime/charset-regexp mime/token-regexp)
285 (defconst mime/content-type-subtype-regexp
286 (concat mime/token-regexp "/" mime/token-regexp))
287 (defconst mime/content-parameter-value-regexp
289 rfc822/quoted-string-regexp
292 (defconst mime/disposition-type-regexp mime/token-regexp)
298 (defconst base64-token-regexp "[A-Za-z0-9+/=]")
300 (defconst mime/B-encoded-text-regexp
307 (defconst mime/B-encoding-and-encoded-text-regexp
308 (concat "\\(B\\)\\?" mime/B-encoded-text-regexp))
311 ;;; @@ Quoted-Printable
314 (defconst quoted-printable-hex-chars "0123456789ABCDEF")
315 (defconst quoted-printable-octet-regexp
316 (concat "=[" quoted-printable-hex-chars
317 "][" quoted-printable-hex-chars "]"))
319 (defconst mime/Q-encoded-text-regexp
320 (concat "\\([^=?]\\|" quoted-printable-octet-regexp "\\)+"))
321 (defconst mime/Q-encoding-and-encoded-text-regexp
322 (concat "\\(Q\\)\\?" mime/Q-encoded-text-regexp))
327 ;; caesar-region written by phr@prep.ai.mit.edu Nov 86
328 ;; modified by tower@prep Nov 86
329 ;; gnus-caesar-region
330 ;; Modified by umerin@flab.flab.Fujitsu.JUNET for ROT47.
331 (defun tm:caesar-region (&optional n)
332 "Caesar rotation of region by N, default 13, for decrypting netnews.
333 ROT47 will be performed for Japanese text in any case."
334 (interactive (if current-prefix-arg ; Was there a prefix arg?
335 (list (prefix-numeric-value current-prefix-arg))
337 (cond ((not (numberp n)) (setq n 13))
338 (t (setq n (mod n 26)))) ;canonicalize N
339 (if (not (zerop n)) ; no action needed for a rot of 0
341 (if (or (not (boundp 'caesar-translate-table))
342 (/= (aref caesar-translate-table ?a) (+ ?a n)))
343 (let ((i 0) (lower "abcdefghijklmnopqrstuvwxyz") upper)
344 (message "Building caesar-translate-table...")
345 (setq caesar-translate-table (make-vector 256 0))
347 (aset caesar-translate-table i i)
349 (setq lower (concat lower lower) upper (upcase lower) i 0)
351 (aset caesar-translate-table (+ ?a i) (aref lower (+ i n)))
352 (aset caesar-translate-table (+ ?A i) (aref upper (+ i n)))
354 ;; ROT47 for Japanese text.
355 ;; Thanks to ichikawa@flab.fujitsu.junet.
357 (let ((t1 (logior ?O 128))
359 (t3 (logior ?~ 128)))
361 (aset caesar-translate-table i
362 (let ((v (aref caesar-translate-table i)))
363 (if (<= v t1) (if (< v t2) v (+ v 47))
364 (if (<= v t3) (- v 47) v))))
366 (message "Building caesar-translate-table...done")))
367 (let ((from (region-beginning))
370 (setq str (buffer-substring from to))
371 (setq len (length str))
373 (aset str i (aref caesar-translate-table (aref str i)))
376 (delete-region from to)
383 (defun tm:set-fields (sym field-list &optional regexp-sym)
386 (let ((name (symbol-name sym)))
388 (concat (if (string-match "\\(.*\\)-list" name)
389 (substring name 0 (match-end 1))
396 (concat "^" (apply (function regexp-or) field-list) ":"))
399 (defun tm:add-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))
410 (let ((fields (eval sym)))
413 (or (member field fields)
414 (setq fields (cons field fields))
420 (concat "^" (apply (function regexp-or) fields) ":"))
424 (defun tm:delete-fields (sym field-list &optional regexp-sym)
427 (let ((name (symbol-name sym)))
429 (concat (if (string-match "\\(.*\\)-list" name)
430 (substring name 0 (match-end 1))
435 (let ((fields (eval sym)))
438 (setq fields (delete field fields))
442 (concat "^" (apply (function regexp-or) fields) ":"))
452 ;;; tm-def.el ends here