1 ;;; poem-nemacs.el --- poem implementation for Nemacs
3 ;; Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
5 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
6 ;; Keywords: emulation, compatibility, Mule
8 ;; This file is part of APEL (A Portable Emacs Library).
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.
31 'charset-description "Character set of ASCII")
33 'charset-registry "ASCII")
35 (put 'japanese-jisx0208
36 'charset-description "Character set of JIS X0208-1983")
37 (put 'japanese-jisx0208
38 'charset-registry "JISX0208.1983")
40 (defun charset-description (charset)
41 "Return description of CHARSET. [emu-nemacs.el]"
42 (get charset 'charset-description))
44 (defun charset-registry (charset)
45 "Return registry name of CHARSET. [emu-nemacs.el]"
46 (get charset 'charset-registry))
48 (defun charset-width (charset)
49 "Return number of columns a CHARSET occupies when displayed.
51 (if (eq charset 'ascii)
55 (defun charset-direction (charset)
56 "Return the direction of a character of CHARSET by
57 0 (left-to-right) or 1 (right-to-left). [emu-nemacs.el]"
60 (defun find-charset-string (str)
61 "Return a list of charsets in the string.
62 \[emu-nemacs.el; Mule emulating function]"
63 (if (string-match "[\200-\377]" str)
67 (defalias 'find-non-ascii-charset-string 'find-charset-string)
69 (defun find-charset-region (start end)
70 "Return a list of charsets in the region between START and END.
71 \[emu-nemacs.el; Mule emulating function]"
74 (narrow-to-region start end)
76 (re-search-forward "[\200-\377]" nil t)))
80 (defalias 'find-non-ascii-charset-region 'find-charset-region)
82 (defun check-ASCII-string (str)
85 (setq len (length str))
88 (if (>= (elt str i) 128)
93 ;;; @@ for old MULE emulation
96 ;;(defconst lc-ascii 0)
97 ;;(defconst lc-jp 146)
103 (defvar coding-system-kanji-code-alist
112 (defun decode-coding-string (string coding-system)
113 "Decode the STRING which is encoded in CODING-SYSTEM.
114 \[emu-nemacs.el; EMACS 20 emulating function]"
115 (let ((code (if (integerp coding-system)
117 (cdr (assq coding-system coding-system-kanji-code-alist)))))
120 (convert-string-kanji-code string code 3)
123 (defun encode-coding-string (string coding-system)
124 "Encode the STRING to CODING-SYSTEM.
125 \[emu-nemacs.el; EMACS 20 emulating function]"
126 (let ((code (if (integerp coding-system)
128 (cdr (assq coding-system coding-system-kanji-code-alist)))))
131 (convert-string-kanji-code string 3 code)
134 (defun decode-coding-region (start end coding-system)
135 "Decode the text between START and END which is encoded in CODING-SYSTEM.
136 \[emu-nemacs.el; EMACS 20 emulating function]"
137 (let ((code (if (integerp coding-system)
139 (cdr (assq coding-system coding-system-kanji-code-alist)))))
142 (narrow-to-region start end)
143 (convert-region-kanji-code start end code 3)
146 (defun encode-coding-region (start end coding-system)
147 "Encode the text between START and END to CODING-SYSTEM.
148 \[emu-nemacs.el; EMACS 20 emulating function]"
149 (let ((code (if (integerp coding-system)
151 (cdr (assq coding-system coding-system-kanji-code-alist)))))
154 (narrow-to-region start end)
155 (convert-region-kanji-code start end 3 code)
158 (defun detect-coding-region (start end)
159 "Detect coding-system of the text in the region between START and END.
160 \[emu-nemacs.el; Emacs 20 emulating function]"
163 (narrow-to-region start end)
165 (re-search-forward "[\200-\377]" nil t)))
169 (defalias 'set-buffer-file-coding-system 'set-kanji-fileio-code)
172 ;;; @ without code-conversion
175 (defmacro as-binary-process (&rest body)
176 (` (let (selective-display ; Disable ^M to nl translation.
179 (default-kanji-process-code 0)
180 program-kanji-code-alist)
183 (defmacro as-binary-input-file (&rest body)
187 (defmacro as-binary-output-file (&rest body)
191 (defun write-region-as-binary (start end filename
192 &optional append visit lockname)
193 "Like `write-region', q.v., but don't code conversion. [emu-nemacs.el]"
194 (as-binary-output-file
195 (write-region start end filename append visit)))
197 (defun insert-file-contents-as-binary (filename
198 &optional visit beg end replace)
199 "Like `insert-file-contents', q.v., but don't character code conversion.
201 (as-binary-input-file
202 ;; Returns list absolute file name and length of data inserted.
203 (insert-file-contents filename visit beg end replace)))
205 (defun insert-file-contents-as-raw-text (filename
206 &optional visit beg end replace)
207 "Like `insert-file-contents', q.v., but don't character code conversion.
209 (as-binary-input-file
210 ;; Returns list absolute file name and length of data inserted.
211 (insert-file-contents filename visit beg end replace)))
213 (defun write-region-as-raw-text-CRLF (start end filename
214 &optional append visit lockname)
215 "Like `write-region', q.v., but don't code conversion. [emu-nemacs.el]"
216 (let ((the-buf (current-buffer)))
218 (insert-buffer-substring the-buf start end)
219 (goto-char (point-min))
220 (while (re-search-forward "\\(\\=\\|[^\r]\\)\n" nil t)
221 (replace-match "\\1\r\n"))
222 (write-region-as-binary (point-min)(point-max)
223 filename append visit))))
226 ;;; @ buffer representation
229 (defsubst-maybe set-buffer-multibyte (flag)
230 "Set the multibyte flag of the current buffer to FLAG.
231 If FLAG is t, this makes the buffer a multibyte buffer.
232 If FLAG is nil, this makes the buffer a single-byte buffer.
233 The buffer contents remain unchanged as a sequence of bytes
234 but the contents viewed as characters do change.
235 \[Emacs 20.3 emulating function]"
236 (setq kanji-flag flag)
243 (defun char-charset (chr)
244 "Return the character set of char CHR.
245 \[emu-nemacs.el; MULE emulating function]"
250 (defun char-bytes (chr)
251 "Return number of bytes CHAR will occupy in a buffer.
252 \[emu-nemacs.el; Mule emulating function]"
257 (defun char-width (char)
258 "Return number of columns a CHAR occupies when displayed.
264 (defalias 'char-length 'char-bytes)
266 (defmacro char-next-index (char index)
267 "Return index of character succeeding CHAR whose index is INDEX."
268 (` (+ (, index) (char-bytes (, char)))))
274 (defalias 'string-width 'length)
276 (defun sref (str idx)
277 "Return the character in STR at index IDX.
278 \[emu-nemacs.el; Mule emulating function]"
279 (let ((chr (aref str idx)))
282 (logior (lsh (aref str (1+ idx)) 8) chr))))
284 (defun string-to-char-list (str)
285 (let ((i 0)(len (length str)) dest chr)
287 (setq chr (aref str i))
290 chr (+ (lsh chr 8) (aref str i)))
292 (setq dest (cons chr dest))
296 (fset 'string-to-int-list (symbol-function 'string-to-char-list))
298 ;;; Imported from Mule-2.3
299 (defun truncate-string (str width &optional start-column)
300 "Truncate STR to fit in WIDTH columns.
301 Optional non-nil arg START-COLUMN specifies the starting column.
302 \[emu-mule.el; Mule 2.3 emulating function]"
304 (setq start-column 0))
305 (let ((max-width (string-width str))
310 (if (>= width max-width)
311 (setq width max-width))
312 (if (>= start-column width)
314 (while (< column start-column)
315 (setq ch (aref str from)
316 column (+ column (char-columns ch))
317 from (+ from (char-bytes ch))))
318 (if (< width max-width)
321 (while (<= column width)
322 (setq ch (aref str to)
323 column (+ column (char-columns ch))
325 to (+ to (char-bytes ch))))
327 (substring str from to))))
329 (defalias 'looking-at-as-unibyte 'looking-at)
331 ;;; @@ obsoleted aliases
333 ;;; You should not use them.
335 (defalias 'string-columns 'length)
341 (provide 'poem-nemacs)
343 ;;; poem-nemacs.el ends here