2 ;;; emu-nemacs.el --- Mule 2 emulation module for NEmacs
4 ;;; Copyright (C) 1995 Free Software Foundation, Inc.
5 ;;; Copyright (C) 1993 .. 1996 MORIOKA Tomohiko
7 ;;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
8 ;;; modified by KOBAYASHI Shuhei <shuhei-k@jaist.ac.jp>
10 ;;; $Id: emu-nemacs.el,v 7.39 1996/07/15 08:24:46 morioka Exp $
11 ;;; Keywords: emulation, compatibility, NEmacs, Mule
13 ;;; This file is part of tl (Tiny Library).
15 ;;; This program is free software; you can redistribute it and/or
16 ;;; modify it under the terms of the GNU General Public License as
17 ;;; published by the Free Software Foundation; either version 2, or
18 ;;; (at your option) any later version.
20 ;;; This program is distributed in the hope that it will be useful,
21 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
22 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 ;;; General Public License for more details.
25 ;;; You should have received a copy of the GNU General Public License
26 ;;; along with This program. If not, write to the Free Software
27 ;;; Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
37 (defconst charset-ascii 0 "Character set of ASCII")
38 (defconst charset-jisx0208 146 "Character set of JIS X0208-1983")
40 (defun charset-description (charset)
41 "Return description of CHARSET. [emu-nemacs.el]"
43 (documentation-property 'charset-ascii 'variable-documentation)
44 (documentation-property 'charset-jisx0208 'variable-documentation)
47 (defun charset-registry (charset)
48 "Return registry name of CHARSET. [emu-nemacs.el]"
53 (defun charset-columns (charset)
54 "Return number of columns a CHARSET occupies when displayed.
60 (defun charset-direction (charset)
61 "Return the direction of a character of CHARSET by
62 0 (left-to-right) or 1 (right-to-left). [emu-nemacs.el]"
65 (defun find-charset-string (str)
66 "Return a list of charsets in the string.
67 \[emu-nemacs.el; Mule emulating function]"
68 (if (string-match "[\200-\377]" str)
72 (defun find-charset-region (start end)
73 "Return a list of charsets in the region between START and END.
74 \[emu-nemacs.el; Mule emulating function]"
77 (narrow-to-region start end)
79 (re-search-forward "[\200-\377]" nil t)
84 (defun check-ASCII-string (str)
87 (setq len (length str))
90 (if (>= (elt str i) 128)
96 ;;; @@ for Mule emulation
106 (defconst *noconv* 0)
110 (defconst *internal* 3)
111 (defconst *euc-japan* 3)
113 (defun code-convert-string (str ic oc)
114 "Convert code in STRING from SOURCE code to TARGET code,
115 On successful converion, returns the result string,
116 else returns nil. [emu-nemacs.el; Mule emulating function]"
118 (convert-string-kanji-code str ic oc)
121 (defun code-convert-region (beg end ic oc)
122 "Convert code of the text between BEGIN and END from SOURCE
123 to TARGET. On successful conversion returns t,
124 else returns nil. [emu-nemacs.el; Mule emulating function]"
128 (narrow-to-region beg end)
129 (convert-region-kanji-code beg end ic oc)
132 (defun code-detect-region (start end)
133 "Detect coding-system of the text in the region between START and END.
134 \[emu-nemacs.el; Mule emulating function]"
137 (narrow-to-region start end)
139 (re-search-forward "[\200-\377]" nil t)
144 (defun set-file-coding-system (coding-system &optional force)
145 (set-kanji-fileio-code coding-system)
148 (defmacro as-binary-process (&rest body)
149 (` (let (selective-display ; Disable ^M to nl translation.
152 (default-kanji-process-code 0)
153 program-kanji-code-alist)
161 (defvar charsets-mime-charset-alist
162 (list (cons (list charset-ascii) 'us-ascii)))
164 (defvar default-mime-charset 'iso-2022-jp)
166 (defvar mime-charset-coding-system-alist
171 (defun mime-charset-to-coding-system (charset)
172 (if (stringp charset)
173 (setq charset (intern (downcase charset)))
175 (cdr (assq charset mime-charset-coding-system-alist))
178 (defun detect-mime-charset-region (start end)
179 "Return MIME charset for region between START and END.
183 (narrow-to-region start end)
185 (re-search-forward "[\200-\377]" nil t)
190 (defun encode-mime-charset-region (start end charset)
191 "Encode the text between START and END as MIME CHARSET.
193 (let ((cs (mime-charset-to-coding-system charset)))
198 (narrow-to-region start end)
199 (convert-region-kanji-code start end 3 cs)
203 (defun decode-mime-charset-region (start end charset)
204 "Decode the text between START and END as MIME CHARSET.
206 (let ((cs (mime-charset-to-coding-system charset)))
211 (narrow-to-region start end)
212 (convert-region-kanji-code start end cs 3)
216 (defun encode-mime-charset-string (string charset)
217 "Encode the STRING as MIME CHARSET. [emu-nemacs.el]"
218 (let ((cs (mime-charset-to-coding-system charset)))
220 (convert-string-kanji-code string 3 cs)
223 (defun decode-mime-charset-string (string charset)
224 "Decode the STRING as MIME CHARSET. [emu-nemacs.el]"
225 (let ((cs (mime-charset-to-coding-system charset)))
227 (convert-string-kanji-code string cs 3)
234 (defun char-charset (chr)
235 "Return the character set of char CHR.
236 \[emu-nemacs.el; XEmacs 20 emulating function]"
241 (defun char-bytes (chr)
242 "Return number of bytes CHAR will occupy in a buffer.
243 \[emu-nemacs.el; Mule emulating function]"
244 (if (< chr 128) 1 2))
246 (defalias 'char-length 'char-bytes)
248 (defun char-columns (character)
249 "Return number of columns a CHARACTER occupies when displayed.
251 (if (< character 128)
255 ;;; @@ for Mule emulation
258 (defalias 'char-leading-char 'char-charset)
260 (defalias 'char-width 'char-columns)
266 (defalias 'string-columns 'length)
268 (defun sref (str idx)
269 "Return the character in STR at index IDX.
270 \[emu-nemacs.el; Mule emulating function]"
271 (let ((chr (aref str idx)))
274 (logior (lsh (aref str (1+ idx)) 8) chr)
277 (defun string-to-char-list (str)
278 (let ((i 0)(len (length str)) dest chr)
280 (setq chr (aref str i))
283 chr (+ (lsh chr 8) (aref str i))
285 (setq dest (cons chr dest))
291 (fset 'string-to-int-list (symbol-function 'string-to-char-list))
293 ;;; Imported from Mule-2.3
294 (defun truncate-string (str width &optional start-column)
295 "Truncate STR to fit in WIDTH columns.
296 Optional non-nil arg START-COLUMN specifies the starting column.
297 \[emu-mule.el; Mule 2.3 emulating function]"
299 (setq start-column 0))
300 (let ((max-width (string-width str))
305 (if (>= width max-width)
306 (setq width max-width))
307 (if (>= start-column width)
309 (while (< column start-column)
310 (setq ch (aref str from)
311 column (+ column (char-columns ch))
312 from (+ from (char-bytes ch))))
313 (if (< width max-width)
316 (while (<= column width)
317 (setq ch (aref str to)
318 column (+ column (char-columns ch))
320 to (+ to (char-bytes ch))))
322 (substring str from to))))
324 ;;; @@ for Mule emulation
327 (defalias 'string-width 'length)
330 ;;; @ text property emulation
333 (setq tl:available-face-attribute-alist
335 ;;(bold . inversed-region)
336 (italic . underlined-region)
337 (underline . underlined-region)
340 ;; by YAMATE Keiichirou 1994/10/28
341 (defun attribute-add-narrow-attribute (attr from to)
342 (or (consp (symbol-value attr))
344 (let* ((attr-value (symbol-value attr))
345 (len (car attr-value))
348 (while (and (< posfrom len)
349 (> from (nth posfrom attr-value)))
350 (setq posfrom (1+ posfrom)))
352 (while (and (< posto len)
353 (> to (nth posto attr-value)))
354 (setq posto (1+ posto)))
355 (if (= posto posfrom)
356 (if (= (% posto 2) 1)
358 (= to (nth posto attr-value)))
359 (set-marker (nth posto attr-value) from)
360 (setcdr (nthcdr (1- posfrom) attr-value)
361 (cons (set-marker-type (set-marker (make-marker)
364 (cons (set-marker-type (set-marker (make-marker)
367 (nthcdr posto attr-value))))
368 (setcar attr-value (+ len 2))))
369 (if (= (% posfrom 2) 0)
370 (setq posfrom (1- posfrom))
371 (set-marker (nth posfrom attr-value) from))
372 (if (= (% posto 2) 0)
374 (setq posto (1- posto))
375 (set-marker (nth posto attr-value) to))
376 (setcdr (nthcdr posfrom attr-value)
377 (nthcdr posto attr-value)))))
379 (defalias 'tl:make-overlay 'cons)
381 (defun tl:overlay-put (overlay prop value)
382 (let ((ret (and (eq prop 'face)
383 (assq value tl:available-face-attribute-alist)
386 (attribute-add-narrow-attribute (cdr ret)
387 (car overlay)(cdr overlay))
394 (provide 'emu-nemacs)
396 ;;; emu-nemacs.el ends here