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 ;; Keywords: emulation, compatibility, Mule
8 ;; This file is part of emu.
10 ;; This program is free software; you can redistribute it and/or
11 ;; modify it under the terms of the GNU General Public License as
12 ;; published by the Free Software Foundation; either version 2, or (at
13 ;; your option) any later version.
15 ;; This program is distributed in the hope that it will be useful, but
16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 ;; General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
27 ;;; @ version specific features
30 (cond (running-emacs-19
33 ;; Suggested by SASAKI Osamu <osamu@shuugr.bekkoame.or.jp>
34 ;; (cf. [os2-emacs-ja:78])
35 (defun fontset-pixel-size (fontset)
36 (let* ((font (get-font-info
37 (aref (cdr (get-fontset-info fontset)) 0)))
42 (let ((pat (aref font 1)))
43 (if (string-match "-[0-9]+-" pat)
46 pat (1+ (match-beginning 0)) (1- (match-end 0))))
52 (defun make-overlay (beg end &optional buffer type))
53 (defun overlay-put (overlay prop value))
60 (defalias 'make-char 'make-character)
62 (defalias 'find-non-ascii-charset-string 'find-charset-string)
63 (defalias 'find-non-ascii-charset-region 'find-charset-region)
65 (defalias 'charset-bytes 'char-bytes)
66 (defalias 'charset-description 'char-description)
67 (defalias 'charset-registry 'char-registry)
68 (defalias 'charset-columns 'char-width)
69 (defalias 'charset-direction 'char-direction)
75 (defun encode-coding-region (start end coding-system)
76 "Encode the text between START and END to CODING-SYSTEM.
77 \[EMACS 20 emulating function]"
78 (code-convert-region start end *internal* coding-system)
81 (defun decode-coding-region (start end coding-system)
82 "Decode the text between START and END which is encoded in CODING-SYSTEM.
83 \[EMACS 20 emulating function]"
84 (code-convert-region start end coding-system *internal*)
87 (defun encode-coding-string (str coding-system)
88 "Encode the STRING to CODING-SYSTEM.
89 \[EMACS 20 emulating function]"
90 (code-convert-string str *internal* coding-system)
93 (defun decode-coding-string (str coding-system)
94 "Decode the string STR which is encoded in CODING-SYSTEM.
95 \[EMACS 20 emulating function]"
96 (let ((len (length str))
102 (code-convert-string (substring str 0 len)
103 coding-system *internal*))
107 (concat ret (substring str len))
110 (defalias 'detect-coding-region 'code-detect-region)
112 (defalias 'set-buffer-file-coding-system 'set-file-coding-system)
114 (defmacro as-binary-process (&rest body)
115 (` (let (selective-display ; Disable ^M to nl translation.
118 (default-process-coding-system (cons *noconv* *noconv*))
119 program-coding-system-alist)
123 (defmacro as-binary-input-file (&rest body)
125 (file-coding-system-for-read *noconv*)
130 (defmacro as-binary-output-file (&rest body)
132 (file-coding-system *noconv*)
137 (defalias 'set-process-input-coding-system 'set-process-coding-system)
143 (defun insert-binary-file-contents-literally
144 (filename &optional visit beg end replace)
145 "Like `insert-file-contents-literally', q.v., but don't code conversion.
146 A buffer may be modified in several ways after reading into the buffer due
147 to advanced Emacs features, such as file-name-handlers, format decoding,
148 find-file-hooks, etc.
149 This function ensures that none of these modifications will take place."
151 (file-coding-system *noconv*))
152 (insert-file-contents-literally filename visit beg end replace)
155 (defun insert-binary-file-contents
156 (filename &optional visit beg end replace)
157 "Like `insert-file-contents', q.v., but don't code and format conversion."
159 (file-coding-system *noconv*))
160 (insert-file-contents filename visit beg end replace)
163 (if running-emacs-19_29-or-later
164 ;; for MULE 2.3 based on Emacs 19.34.
165 (defun write-region-as-binary (start end filename
166 &optional append visit lockname)
167 "Like `write-region', q.v., but don't code conversion."
169 (file-coding-system *noconv*))
170 (write-region start end filename append visit lockname)
172 ;; for MULE 2.3 based on Emacs 19.28.
173 (defun write-region-as-binary (start end filename
174 &optional append visit lockname)
175 "Like `write-region', q.v., but don't code conversion."
177 (file-coding-system *noconv*))
178 (write-region start end filename append visit)
186 (defun encode-mime-charset-region (start end charset)
187 "Encode the text between START and END as MIME CHARSET."
188 (let ((cs (mime-charset-to-coding-system charset)))
190 (code-convert start end *internal* cs)
193 (defun decode-mime-charset-region (start end charset)
194 "Decode the text between START and END as MIME CHARSET."
195 (let ((cs (mime-charset-to-coding-system charset)))
197 (code-convert start end cs *internal*)
200 (defun encode-mime-charset-string (string charset)
201 "Encode the STRING as MIME CHARSET."
202 (let ((cs (mime-charset-to-coding-system charset)))
204 (code-convert-string string *internal* cs)
207 (defun decode-mime-charset-string (string charset)
208 "Decode the STRING which is encoded in MIME CHARSET."
209 (let ((cs (mime-charset-to-coding-system charset)))
211 (decode-coding-string string cs)
215 ;;; @@ to coding-system
218 (defvar mime-charset-coding-system-alist
219 '((iso-8859-1 . *ctext*)
221 (gb2312 . *euc-china*)
223 (iso-2022-jp-2 . *iso-2022-ss2-7*)
224 (x-iso-2022-jp-2 . *iso-2022-ss2-7*)
226 (x-shiftjis . *sjis*)
229 (defun mime-charset-to-coding-system (charset &optional lbt)
230 (if (stringp charset)
231 (setq charset (intern (downcase charset)))
234 (or (cdr (assq charset mime-charset-coding-system-alist))
235 (let ((cs (intern (concat "*" (symbol-name charset) "*"))))
236 (and (coding-system-p cs) cs)
241 (intern (concat (symbol-name cs) (symbol-name lbt)))
248 (defvar charsets-mime-charset-alist
250 '(((lc-ascii) . us-ascii)
251 ((lc-ascii lc-ltn1) . iso-8859-1)
252 ((lc-ascii lc-ltn2) . iso-8859-2)
253 ((lc-ascii lc-ltn3) . iso-8859-3)
254 ((lc-ascii lc-ltn4) . iso-8859-4)
255 ;;; ((lc-ascii lc-crl) . iso-8859-5)
256 ((lc-ascii lc-crl) . koi8-r)
257 ((lc-ascii lc-arb) . iso-8859-6)
258 ((lc-ascii lc-grk) . iso-8859-7)
259 ((lc-ascii lc-hbw) . iso-8859-8)
260 ((lc-ascii lc-ltn5) . iso-8859-9)
261 ((lc-ascii lc-roman lc-jpold lc-jp) . iso-2022-jp)
262 ((lc-ascii lc-kr) . euc-kr)
263 ((lc-ascii lc-cn) . gb2312)
264 ((lc-ascii lc-big5-1 lc-big5-2) . big5)
265 ((lc-ascii lc-roman lc-ltn1 lc-grk
266 lc-jpold lc-cn lc-jp lc-kr
267 lc-jp2) . iso-2022-jp-2)
268 ((lc-ascii lc-roman lc-ltn1 lc-grk
269 lc-jpold lc-cn lc-jp lc-kr lc-jp2
270 lc-cns1 lc-cns2) . iso-2022-int-1)
272 lc-ltn1 lc-ltn2 lc-crl lc-grk
273 lc-jpold lc-cn lc-jp lc-kr lc-jp2
274 lc-cns1 lc-cns2 lc-cns3 lc-cns4
275 lc-cns5 lc-cns6 lc-cns7) . iso-2022-int-1)
280 (let ((pair (car alist)))
284 (cons (mapcar (function
288 (throw 'not-found nil)
292 (setq alist (cdr alist)))
295 (defvar default-mime-charset 'x-ctext
296 "Default value of MIME-charset.
297 It is used when MIME-charset is not specified.
300 (defun detect-mime-charset-region (start end)
301 "Return MIME charset for region between START and END."
302 (charsets-to-mime-charset
303 (cons lc-ascii (find-charset-region start end))))
309 (defalias 'char-charset 'char-leading-char)
311 (defalias 'char-length 'char-bytes)
313 (defalias 'char-columns 'char-width)
319 (defalias 'string-columns 'string-width)
321 (defalias 'string-to-int-list 'string-to-char-list)
323 (or (fboundp 'truncate-string)
324 ;;; Imported from Mule-2.3
325 (defun truncate-string (str width &optional start-column)
326 "Truncate STR to fit in WIDTH columns.
327 Optional non-nil arg START-COLUMN specifies the starting column.
328 \[emu-mule.el; Mule 2.3 emulating function]"
330 (setq start-column 0))
331 (let ((max-width (string-width str))
336 (if (>= width max-width)
337 (setq width max-width))
338 (if (>= start-column width)
340 (while (< column start-column)
341 (setq ch (aref str from)
342 column (+ column (char-width ch))
343 from (+ from (char-bytes ch))))
344 (if (< width max-width)
347 (while (<= column width)
348 (setq ch (aref str to)
349 column (+ column (char-width ch))
351 to (+ to (char-bytes ch))))
353 (substring str from to))))
361 (defun regulate-latin-char (chr)
362 (cond ((and (<= ?
\e$B#A
\e(B chr)(<= chr ?
\e$B#Z
\e(B))
363 (+ (- chr ?
\e$B#A
\e(B) ?A)
365 ((and (<= ?
\e$B#a
\e(B chr)(<= chr ?
\e$B#z
\e(B))
366 (+ (- chr ?
\e$B#a
\e(B) ?a)
368 ((eq chr ?
\e$B!%
\e(B) ?.)
369 ((eq chr ?
\e$B!$
\e(B) ?,)
373 (defun regulate-latin-string (str)
374 (let ((len (length str))
378 (setq chr (sref str i))
379 (setq dest (concat dest
380 (char-to-string (regulate-latin-char chr))))
381 (setq i (+ i (char-bytes chr)))
391 ;;; emu-mule.el ends here