1 ;;; emu-mule.el --- emu module for Mule 1.* and Mule 2.*
3 ;; Copyright (C) 1995,1996,1997,1998 MORIOKA Tomohiko
5 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
6 ;; Katsumi Yamaoka <yamaoka@jpl.org>
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*))
153 (insert-file-contents-literally filename visit beg end replace)
156 (defun insert-binary-file-contents
157 (filename &optional visit beg end replace)
158 "Like `insert-file-contents', q.v., but don't code and format conversion."
160 (file-coding-system *noconv*))
161 (insert-file-contents filename visit beg end replace)
164 (if running-emacs-19_29-or-later
165 ;; for MULE 2.3 based on Emacs 19.34.
166 (defun write-region-as-binary (start end filename
167 &optional append visit lockname)
168 "Like `write-region', q.v., but don't code conversion."
170 (file-coding-system *noconv*))
171 (write-region start end filename append visit lockname)
173 ;; for MULE 2.3 based on Emacs 19.28.
174 (defun write-region-as-binary (start end filename
175 &optional append visit lockname)
176 "Like `write-region', q.v., but don't code conversion."
178 (file-coding-system *noconv*))
179 (write-region start end filename append visit)
187 (defun encode-mime-charset-region (start end charset)
188 "Encode the text between START and END as MIME CHARSET."
189 (let ((cs (mime-charset-to-coding-system charset)))
191 (code-convert start end *internal* cs)
194 (defun decode-mime-charset-region (start end charset)
195 "Decode the text between START and END as MIME CHARSET."
196 (let ((cs (mime-charset-to-coding-system charset)))
198 (code-convert start end cs *internal*)
201 (defun encode-mime-charset-string (string charset)
202 "Encode the STRING as MIME CHARSET."
203 (let ((cs (mime-charset-to-coding-system charset)))
205 (code-convert-string string *internal* cs)
208 (defun decode-mime-charset-string (string charset)
209 "Decode the STRING which is encoded in MIME CHARSET."
210 (let ((cs (mime-charset-to-coding-system charset)))
212 (decode-coding-string string cs)
216 ;;; @@ to coding-system
219 (defvar mime-charset-coding-system-alist
220 '((iso-8859-1 . *ctext*)
222 (gb2312 . *euc-china*)
224 (iso-2022-jp-2 . *iso-2022-ss2-7*)
225 (x-iso-2022-jp-2 . *iso-2022-ss2-7*)
227 (x-shiftjis . *sjis*)
230 (defun mime-charset-to-coding-system (charset &optional lbt)
231 (if (stringp charset)
232 (setq charset (intern (downcase charset)))
235 (or (cdr (assq charset mime-charset-coding-system-alist))
236 (let ((cs (intern (concat "*" (symbol-name charset) "*"))))
237 (and (coding-system-p cs) cs)
242 (intern (concat (symbol-name cs) (symbol-name lbt)))
249 (defvar charsets-mime-charset-alist
251 '(((lc-ascii) . us-ascii)
252 ((lc-ascii lc-ltn1) . iso-8859-1)
253 ((lc-ascii lc-ltn2) . iso-8859-2)
254 ((lc-ascii lc-ltn3) . iso-8859-3)
255 ((lc-ascii lc-ltn4) . iso-8859-4)
256 ;;; ((lc-ascii lc-crl) . iso-8859-5)
257 ((lc-ascii lc-crl) . koi8-r)
258 ((lc-ascii lc-arb) . iso-8859-6)
259 ((lc-ascii lc-grk) . iso-8859-7)
260 ((lc-ascii lc-hbw) . iso-8859-8)
261 ((lc-ascii lc-ltn5) . iso-8859-9)
262 ((lc-ascii lc-roman lc-jpold lc-jp) . iso-2022-jp)
263 ((lc-ascii lc-kr) . euc-kr)
264 ((lc-ascii lc-cn) . gb2312)
265 ((lc-ascii lc-big5-1 lc-big5-2) . big5)
266 ((lc-ascii lc-roman lc-ltn1 lc-grk
267 lc-jpold lc-cn lc-jp lc-kr
268 lc-jp2) . iso-2022-jp-2)
269 ((lc-ascii lc-roman lc-ltn1 lc-grk
270 lc-jpold lc-cn lc-jp lc-kr lc-jp2
271 lc-cns1 lc-cns2) . iso-2022-int-1)
273 lc-ltn1 lc-ltn2 lc-crl lc-grk
274 lc-jpold lc-cn lc-jp lc-kr lc-jp2
275 lc-cns1 lc-cns2 lc-cns3 lc-cns4
276 lc-cns5 lc-cns6 lc-cns7) . iso-2022-int-1)
281 (let ((pair (car alist)))
285 (cons (mapcar (function
289 (throw 'not-found nil)
293 (setq alist (cdr alist)))
296 (defvar default-mime-charset 'x-ctext
297 "Default value of MIME-charset.
298 It is used when MIME-charset is not specified.
301 (defun detect-mime-charset-region (start end)
302 "Return MIME charset for region between START and END."
303 (charsets-to-mime-charset
304 (cons lc-ascii (find-charset-region start end))))
310 (defalias 'char-charset 'char-leading-char)
312 (defalias 'char-length 'char-bytes)
314 (defalias 'char-columns 'char-width)
320 (defalias 'string-columns 'string-width)
322 (defalias 'string-to-int-list 'string-to-char-list)
324 (or (fboundp 'truncate-string)
325 ;;; Imported from Mule-2.3
326 (defun truncate-string (str width &optional start-column)
327 "Truncate STR to fit in WIDTH columns.
328 Optional non-nil arg START-COLUMN specifies the starting column.
329 \[emu-mule.el; Mule 2.3 emulating function]"
331 (setq start-column 0))
332 (let ((max-width (string-width str))
337 (if (>= width max-width)
338 (setq width max-width))
339 (if (>= start-column width)
341 (while (< column start-column)
342 (setq ch (aref str from)
343 column (+ column (char-width ch))
344 from (+ from (char-bytes ch))))
345 (if (< width max-width)
348 (while (<= column width)
349 (setq ch (aref str to)
350 column (+ column (char-width ch))
352 to (+ to (char-bytes ch))))
354 (substring str from to))))
362 (defun regulate-latin-char (chr)
363 (cond ((and (<= ?
\e$B#A
\e(B chr)(<= chr ?
\e$B#Z
\e(B))
364 (+ (- chr ?
\e$B#A
\e(B) ?A)
366 ((and (<= ?
\e$B#a
\e(B chr)(<= chr ?
\e$B#z
\e(B))
367 (+ (- chr ?
\e$B#a
\e(B) ?a)
369 ((eq chr ?
\e$B!%
\e(B) ?.)
370 ((eq chr ?
\e$B!$
\e(B) ?,)
374 (defun regulate-latin-string (str)
375 (let ((len (length str))
379 (setq chr (sref str i))
380 (setq dest (concat dest
381 (char-to-string (regulate-latin-char chr))))
382 (setq i (+ i (char-bytes chr)))
392 ;;; emu-mule.el ends here