1 ;;; emu-mule.el --- emu module for Mule 1.* and Mule 2.*
3 ;; Copyright (C) 1995,1996,1997 MORIOKA Tomohiko
5 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
6 ;; Version: $Id: emu-mule.el,v 7.65 1997/11/04 08:01:11 morioka Exp $
7 ;; Keywords: emulation, compatibility, Mule
9 ;; This file is part of emu.
11 ;; This program is free software; you can redistribute it and/or
12 ;; modify it under the terms of the GNU General Public License as
13 ;; published by the Free Software Foundation; either version 2, or (at
14 ;; your option) any later version.
16 ;; This program is distributed in the hope that it will be useful, but
17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 ;; General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 ;; Boston, MA 02111-1307, USA.
28 ;;; @ version specific features
31 (cond (running-emacs-19
34 ;; Suggested by SASAKI Osamu <osamu@shuugr.bekkoame.or.jp>
35 ;; (cf. [os2-emacs-ja:78])
36 (defun fontset-pixel-size (fontset)
37 (let* ((font (get-font-info
38 (aref (cdr (get-fontset-info fontset)) 0)))
43 (let ((pat (aref font 1)))
44 (if (string-match "-[0-9]+-" pat)
47 pat (1+ (match-beginning 0)) (1- (match-end 0))))
53 (defun make-overlay (beg end &optional buffer type))
54 (defun overlay-put (overlay prop value))
61 (defalias 'make-char 'make-character)
63 (defalias 'find-non-ascii-charset-string 'find-charset-string)
64 (defalias 'find-non-ascii-charset-region 'find-charset-region)
66 (defalias 'charset-bytes 'char-bytes)
67 (defalias 'charset-description 'char-description)
68 (defalias 'charset-registry 'char-registry)
69 (defalias 'charset-columns 'char-width)
70 (defalias 'charset-direction 'char-direction)
76 (defun encode-coding-region (start end coding-system)
77 "Encode the text between START and END to CODING-SYSTEM.
78 \[EMACS 20 emulating function]"
79 (code-convert-region start end *internal* coding-system)
82 (defun decode-coding-region (start end coding-system)
83 "Decode the text between START and END which is encoded in CODING-SYSTEM.
84 \[EMACS 20 emulating function]"
85 (code-convert-region start end coding-system *internal*)
88 (defun encode-coding-string (str coding-system)
89 "Encode the STRING to CODING-SYSTEM.
90 \[EMACS 20 emulating function]"
91 (code-convert-string str *internal* coding-system)
94 (defun decode-coding-string (str coding-system)
95 "Decode the string STR which is encoded in CODING-SYSTEM.
96 \[EMACS 20 emulating function]"
97 (let ((len (length str))
103 (code-convert-string (substring str 0 len)
104 coding-system *internal*))
108 (concat ret (substring str len))
111 (defalias 'detect-coding-region 'code-detect-region)
113 (defalias 'set-buffer-file-coding-system 'set-file-coding-system)
115 (defmacro as-binary-process (&rest body)
116 (` (let (selective-display ; Disable ^M to nl translation.
119 (default-process-coding-system (cons *noconv* *noconv*))
120 program-coding-system-alist)
124 (defmacro as-binary-input-file (&rest body)
126 (file-coding-system-for-read *noconv*)
131 (defmacro as-binary-output-file (&rest body)
133 (file-coding-system *noconv*)
138 (defalias 'set-process-input-coding-system 'set-process-coding-system)
144 (defun insert-binary-file-contents-literally
145 (filename &optional visit beg end replace)
146 "Like `insert-file-contents-literally', q.v., but don't code conversion.
147 A buffer may be modified in several ways after reading into the buffer due
148 to advanced Emacs features, such as file-name-handlers, format decoding,
149 find-file-hooks, etc.
150 This function ensures that none of these modifications will take place."
152 (file-coding-system *noconv*)
154 (insert-file-contents-literally filename visit beg end replace)
161 (defun encode-mime-charset-region (start end charset)
162 "Encode the text between START and END as MIME CHARSET."
163 (let ((cs (mime-charset-to-coding-system charset)))
165 (code-convert start end *internal* cs)
168 (defun decode-mime-charset-region (start end charset)
169 "Decode the text between START and END as MIME CHARSET."
170 (let ((cs (mime-charset-to-coding-system charset)))
172 (code-convert start end cs *internal*)
175 (defun encode-mime-charset-string (string charset)
176 "Encode the STRING as MIME CHARSET."
177 (let ((cs (mime-charset-to-coding-system charset)))
179 (code-convert-string string *internal* cs)
182 (defun decode-mime-charset-string (string charset)
183 "Decode the STRING which is encoded in MIME CHARSET."
184 (let ((cs (mime-charset-to-coding-system charset)))
186 (decode-coding-string string cs)
190 ;;; @@ to coding-system
193 (defvar mime-charset-coding-system-alist
194 '((iso-8859-1 . *ctext*)
196 (gb2312 . *euc-china*)
198 (iso-2022-jp-2 . *iso-2022-ss2-7*)
199 (x-iso-2022-jp-2 . *iso-2022-ss2-7*)
201 (x-shiftjis . *sjis*)
204 (defun mime-charset-to-coding-system (charset &optional lbt)
205 (if (stringp charset)
206 (setq charset (intern (downcase charset)))
209 (or (cdr (assq charset mime-charset-coding-system-alist))
210 (let ((cs (intern (concat "*" (symbol-name charset) "*"))))
211 (and (coding-system-p cs) cs)
216 (intern (concat (symbol-name cs) (symbol-name lbt)))
223 (defvar charsets-mime-charset-alist
225 '(((lc-ascii) . 'us-ascii)
226 ((lc-ascii lc-ltn1) . 'iso-8859-1)
227 ((lc-ascii lc-ltn2) . 'iso-8859-2)
228 ((lc-ascii lc-ltn3) . 'iso-8859-3)
229 ((lc-ascii lc-ltn4) . 'iso-8859-4)
230 ;;; ((lc-ascii lc-crl) . 'iso-8859-5)
231 ((lc-ascii lc-crl) . 'koi8-r)
232 ((lc-ascii lc-arb) . 'iso-8859-6)
233 ((lc-ascii lc-grk) . 'iso-8859-7)
234 ((lc-ascii lc-hbw) . 'iso-8859-8)
235 ((lc-ascii lc-ltn5) . 'iso-8859-9)
236 ((lc-ascii lc-roman lc-jpold lc-jp) . 'iso-2022-jp)
237 ((lc-ascii lc-kr) . 'euc-kr)
238 ((lc-ascii lc-cn) . 'gb2312)
239 ((lc-ascii lc-big5-1 lc-big5-2) . 'big5)
240 ((lc-ascii lc-roman lc-ltn1 lc-grk
241 lc-jpold lc-cn lc-jp lc-kr
242 lc-jp2) . 'iso-2022-jp-2)
243 ((lc-ascii lc-roman lc-ltn1 lc-grk
244 lc-jpold lc-cn lc-jp lc-kr lc-jp2
245 lc-cns1 lc-cns2) . 'iso-2022-int-1)
247 lc-ltn1 lc-ltn2 lc-crl lc-grk
248 lc-jpold lc-cn lc-jp lc-kr lc-jp2
249 lc-cns1 lc-cns2 lc-cns3 lc-cns4
250 lc-cns5 lc-cns6 lc-cns7) . 'iso-2022-int-1)
255 (let ((pair (car alist)))
257 (cons (mapcar (function
261 (throw 'not-found nil)
265 (setq alist (cdr alist))))
268 (defvar default-mime-charset 'x-ctext
269 "Default value of MIME-charset.
270 It is used when MIME-charset is not specified.
273 (defun detect-mime-charset-region (start end)
274 "Return MIME charset for region between START and END."
275 (charsets-to-mime-charset
276 (cons lc-ascii (find-charset-region start end))))
282 (defalias 'char-charset 'char-leading-char)
284 (defalias 'char-length 'char-bytes)
286 (defalias 'char-columns 'char-width)
292 (defalias 'string-columns 'string-width)
294 (defalias 'string-to-int-list 'string-to-char-list)
296 (or (fboundp 'truncate-string)
297 ;;; Imported from Mule-2.3
298 (defun truncate-string (str width &optional start-column)
299 "Truncate STR to fit in WIDTH columns.
300 Optional non-nil arg START-COLUMN specifies the starting column.
301 \[emu-mule.el; Mule 2.3 emulating function]"
303 (setq start-column 0))
304 (let ((max-width (string-width str))
309 (if (>= width max-width)
310 (setq width max-width))
311 (if (>= start-column width)
313 (while (< column start-column)
314 (setq ch (aref str from)
315 column (+ column (char-width ch))
316 from (+ from (char-bytes ch))))
317 (if (< width max-width)
320 (while (<= column width)
321 (setq ch (aref str to)
322 column (+ column (char-width ch))
324 to (+ to (char-bytes ch))))
326 (substring str from to))))
334 (defun regulate-latin-char (chr)
335 (cond ((and (<= ?
\e$B#A
\e(B chr)(<= chr ?
\e$B#Z
\e(B))
336 (+ (- chr ?
\e$B#A
\e(B) ?A)
338 ((and (<= ?
\e$B#a
\e(B chr)(<= chr ?
\e$B#z
\e(B))
339 (+ (- chr ?
\e$B#a
\e(B) ?a)
341 ((eq chr ?
\e$B!%
\e(B) ?.)
342 ((eq chr ?
\e$B!$
\e(B) ?,)
346 (defun regulate-latin-string (str)
347 (let ((len (length str))
351 (setq chr (sref str i))
352 (setq dest (concat dest
353 (char-to-string (regulate-latin-char chr))))
354 (setq i (+ i (char-bytes chr)))
364 ;;; emu-mule.el ends here