|
333
|
1 ;; mule-misc.el --- Miscellaneous Mule functions.
|
|
|
2
|
|
398
|
3 ;; Copyright (C) 1995,1999 Electrotechnical Laboratory, JAPAN.
|
|
333
|
4 ;; Licensed to the Free Software Foundation.
|
|
|
5 ;; Copyright (C) 1992,93,94,95 Free Software Foundation, Inc.
|
|
|
6 ;; Copyright (C) 1995 Amdahl Corporation.
|
|
|
7 ;; Copyright (C) 1995 Sun Microsystems.
|
|
|
8
|
|
|
9 ;; This file is part of XEmacs.
|
|
|
10
|
|
|
11 ;; XEmacs is free software; you can redistribute it and/or modify it
|
|
|
12 ;; under the terms of the GNU General Public License as published by
|
|
|
13 ;; the Free Software Foundation; either version 2, or (at your option)
|
|
|
14 ;; any later version.
|
|
|
15
|
|
|
16 ;; XEmacs 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.
|
|
|
20
|
|
|
21 ;; You should have received a copy of the GNU General Public License
|
|
|
22 ;; along with XEmacs; 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.
|
|
|
25
|
|
|
26 ;;;
|
|
|
27 ;;; protect specified local variables from kill-all-local-variables
|
|
|
28 ;;;
|
|
|
29
|
|
|
30 (defvar self-insert-after-hook nil
|
|
|
31 "Hook to run when extended self insertion command exits. Should take
|
|
|
32 two arguments START and END corresponding to character position.")
|
|
|
33
|
|
|
34 (make-variable-buffer-local 'self-insert-after-hook)
|
|
|
35
|
|
|
36 (defun toggle-display-direction ()
|
|
|
37 (interactive)
|
|
|
38 (setq display-direction (not display-direction))
|
|
|
39 (if (interactive-p) (redraw-display)))
|
|
|
40
|
|
|
41 ;;;
|
|
|
42 ;;; Utility functions for Mule
|
|
|
43 ;;;
|
|
|
44
|
|
|
45 ;(defun string-to-char-list (str)
|
|
|
46 ; (let ((len (length str))
|
|
|
47 ; (idx 0)
|
|
|
48 ; c l)
|
|
|
49 ; (while (< idx len)
|
|
|
50 ; (setq c (sref str idx))
|
|
|
51 ; (setq idx (+ idx (charset-dimension (char-charset c))))
|
|
|
52 ; (setq l (cons c l)))
|
|
|
53 ; (nreverse l)))
|
|
|
54
|
|
|
55 (defun string-to-char-list (str)
|
|
|
56 (mapcar 'identity str))
|
|
|
57
|
|
|
58 (defun string-width (string)
|
|
|
59 "Return number of columns STRING occupies when displayed.
|
|
|
60 Uses the charset-columns attribute of the characters in STRING,
|
|
|
61 which may not accurately represent the actual display width when
|
|
|
62 using a window system."
|
|
|
63 (let ((col 0)
|
|
|
64 (len (length string))
|
|
|
65 (i 0))
|
|
|
66 (while (< i len)
|
|
422
|
67 (setq col (+ col (charset-width (char-charset (aref string i)))))
|
|
333
|
68 (setq i (1+ i)))
|
|
|
69 col))
|
|
|
70
|
|
|
71 (defalias 'string-columns 'string-width)
|
|
|
72 (make-obsolete 'string-columns 'string-width)
|
|
|
73
|
|
|
74 (defun delete-text-in-column (from to)
|
|
|
75 "Delete the text between column FROM and TO (exclusive) of the current line.
|
|
|
76 Nil of FORM or TO means the current column.
|
|
|
77
|
|
|
78 If there's a character across the borders, the character is replaced
|
|
|
79 with the same width of spaces before deleting."
|
|
|
80 (save-excursion
|
|
|
81 (let (p1 p2)
|
|
|
82 (if from
|
|
|
83 (progn
|
|
|
84 (setq p1 (move-to-column from))
|
|
|
85 (if (> p1 from)
|
|
|
86 (progn
|
|
|
87 (delete-char -1)
|
|
|
88 (insert-char ? (- p1 (current-column)))
|
|
|
89 (forward-char (- from p1))))))
|
|
|
90 (setq p1 (point))
|
|
|
91 (if to
|
|
|
92 (progn
|
|
|
93 (setq p2 (move-to-column to))
|
|
|
94 (if (> p2 to)
|
|
|
95 (progn
|
|
|
96 (delete-char -1)
|
|
|
97 (insert-char ? (- p2 (current-column)))
|
|
|
98 (forward-char (- to p2))))))
|
|
|
99 (setq p2 (point))
|
|
|
100 (delete-region p1 p2))))
|
|
|
101
|
|
|
102 ;; #### Someone translate this!!
|
|
|
103
|
|
|
104 (defun mc-normal-form-string (str)
|
|
|
105 "文字列 STR の漢字標準形文字列を返す．"
|
|
|
106 (let ((i 0))
|
|
|
107 (while (setq i (string-match "\n" str i))
|
|
|
108 (if (and (<= 1 i) (< i (1- (length str)))
|
|
|
109 (< (aref str (1- i)) 128)
|
|
|
110 (< (aref str (1+ i)) 128))
|
|
|
111 (aset str i ? ))
|
|
|
112 (setq i (1+ i)))
|
|
|
113 (if (string-match "\n" str 0)
|
|
|
114 (let ((c 0) (i 0) new)
|
|
|
115 (while (setq i (string-match "\n" str i))
|
|
|
116 (setq i (1+ i))
|
|
|
117 (setq c (1+ c)))
|
|
|
118 (setq new (make-string (- (length str) c) 0))
|
|
|
119 (setq i 0 c 0)
|
|
|
120 (while (< i (length str))
|
|
|
121 (cond((not (= (aref str i) ?\n ))
|
|
|
122 (aset new c (aref str i))
|
|
|
123 (setq c (1+ c))))
|
|
|
124
|
|
|
125 (setq i (1+ i))
|
|
|
126 )
|
|
|
127 new)
|
|
|
128 str)))
|
|
|
129
|
|
|
130
|
|
|
131 (defun string-memq (str list)
|
|
|
132 "Returns non-nil if STR is an element of LIST. Comparison done with string=.
|
|
|
133 The value is actually the tail of LIST whose car is STR.
|
|
|
134 If each element of LIST is not a string, it is converted to string
|
|
|
135 before comparison."
|
|
|
136 (let (find elm)
|
|
|
137 (while (and (not find) list)
|
|
|
138 (setq elm (car list))
|
|
|
139 (if (numberp elm) (setq elm (char-to-string elm)))
|
|
|
140 (if (string= str elm)
|
|
|
141 (setq find list)
|
|
|
142 (setq list (cdr list))))
|
|
|
143 find))
|
|
|
144
|
|
|
145 (defun cancel-undo-boundary ()
|
|
|
146 "Cancel undo boundary."
|
|
|
147 (if (and (consp buffer-undo-list)
|
|
|
148 ;; if car is nil.
|
|
|
149 (null (car buffer-undo-list)) )
|
|
|
150 (setq buffer-undo-list (cdr buffer-undo-list)) ))
|
|
|
151
|
|
|
152
|
|
|
153 ;;; Common API emulation functions for GNU Emacs-merged Mule.
|
|
|
154 ;;; As suggested by MORIOKA Tomohiko
|
|
|
155
|
|
|
156 ;; Following definition were imported from Emacs/mule-delta.
|
|
|
157
|
|
|
158 ;; Function `truncate-string-to-width' was moved to mule-util.el.
|
|
|
159
|
|
|
160 ;; end of imported definition
|
|
|
161
|
|
|
162
|
|
|
163 (defalias 'sref 'aref)
|
|
|
164 (defalias 'map-char-concat 'mapcar)
|
|
|
165 (defun char-bytes (character)
|
|
412
|
166 "Return number of length a CHARACTER occupies in a string or buffer.
|
|
|
167 It returns only 1 in XEmacs. It is for compatibility with MULE 2.3."
|
|
333
|
168 1)
|
|
|
169 (defalias 'char-length 'char-bytes)
|
|
|
170
|
|
|
171 (defun char-width (character)
|
|
|
172 "Return number of columns a CHARACTER occupies when displayed."
|
|
422
|
173 (charset-width (char-charset character)))
|
|
333
|
174
|
|
|
175 (defalias 'char-columns 'char-width)
|
|
|
176 (make-obsolete 'char-columns 'char-width)
|
|
|
177
|
|
|
178 (defalias 'find-charset-string 'charsets-in-string)
|
|
|
179 (defalias 'find-charset-region 'charsets-in-region)
|
|
|
180
|
|
|
181 (defun find-non-ascii-charset-string (string)
|
|
|
182 "Return a list of charsets in the STRING except ascii.
|
|
|
183 It might be available for compatibility with Mule 2.3,
|
|
|
184 because its `find-charset-string' ignores ASCII charset."
|
|
|
185 (delq 'ascii (charsets-in-string string)))
|
|
|
186
|
|
|
187 (defun find-non-ascii-charset-region (start end)
|
|
|
188 "Return a list of charsets except ascii in the region between START and END.
|
|
|
189 It might be available for compatibility with Mule 2.3,
|
|
|
190 because its `find-charset-string' ignores ASCII charset."
|
|
|
191 (delq 'ascii (charsets-in-region start end)))
|
|
|
192
|
|
418
|
193 ;(defun split-char (char)
|
|
|
194 ; "Return list of charset and one or two position-codes of CHAR."
|
|
|
195 ; (let ((charset (char-charset char)))
|
|
|
196 ; (if (eq charset 'ascii)
|
|
|
197 ; (list charset (char-int char))
|
|
|
198 ; (let ((i 0)
|
|
|
199 ; (len (charset-dimension charset))
|
|
|
200 ; (code (if (integerp char)
|
|
|
201 ; char
|
|
|
202 ; (char-int char)))
|
|
|
203 ; dest)
|
|
|
204 ; (while (< i len)
|
|
|
205 ; (setq dest (cons (logand code 127) dest)
|
|
|
206 ; code (lsh code -7)
|
|
|
207 ; i (1+ i)))
|
|
|
208 ; (cons charset dest)
|
|
|
209 ; ))))
|
|
398
|
210
|
|
418
|
211 (defun char-octet (ch &optional n)
|
|
|
212 "Return the octet numbered N (should be 0 or 1) of char CH.
|
|
|
213 N defaults to 0 if omitted."
|
|
|
214 (let ((split (split-char ch)))
|
|
420
|
215 (setq n (or n 0))
|
|
418
|
216 (cond ((eq n 0)
|
|
|
217 (nth 1 split))
|
|
|
218 ((eq n 1)
|
|
|
219 (nth 2 split))
|
|
|
220 (t (error "n must be 0 or 1")))))
|
|
|
221 ;; Made obsolete June 15, 1999. Delete ASAP.
|
|
|
222 (make-obsolete 'char-octet "Use split-char")
|
|
|
223
|
|
|
224 ;(defun split-char-or-char-int (char)
|
|
|
225 ; "Return list of charset and one or two position-codes of CHAR.
|
|
|
226 ;CHAR must be character or integer."
|
|
|
227 ; (if (characterp char)
|
|
|
228 ; (split-char char)
|
|
|
229 ; (let ((c (int-char char)))
|
|
|
230 ; (if c
|
|
|
231 ; (split-char c)
|
|
|
232 ; (list 'ascii c)
|
|
|
233 ; ))))
|
|
333
|
234
|
|
|
235
|
|
|
236 ;;; Commands
|
|
|
237
|
|
|
238 (defun set-buffer-process-coding-system (decoding encoding)
|
|
|
239 "Set coding systems for the process associated with the current buffer.
|
|
|
240 DECODING is the coding system to be used to decode input from the process,
|
|
|
241 ENCODING is the coding system to be used to encode output to the process.
|
|
|
242
|
|
|
243 For a list of possible values of CODING-SYSTEM, use \\[list-coding-systems]."
|
|
|
244 (interactive
|
|
|
245 "zCoding-system for process input: \nzCoding-system for process output: ")
|
|
|
246 (let ((proc (get-buffer-process (current-buffer))))
|
|
|
247 (if (null proc)
|
|
|
248 (error "no process")
|
|
|
249 (check-coding-system decoding)
|
|
|
250 (check-coding-system encoding)
|
|
|
251 (set-process-coding-system proc decoding encoding)))
|
|
|
252 (force-mode-line-update))
|
|
|
253
|
|
|
254
|
|
|
255 ;;; Language environments
|
|
|
256
|
|
|
257 ;; (defvar current-language-environment nil)
|
|
|
258
|
|
|
259 ;; (defvar language-environment-list nil)
|
|
|
260
|
|
|
261 ;; (defun current-language-environment ()
|
|
|
262 ;; "Return the current language environment as a symbol.
|
|
|
263 ;; Returns nil if `set-language-environment' has not been called."
|
|
|
264 ;; current-language-environment)
|
|
|
265
|
|
|
266 ;; (defun language-environment-list ()
|
|
|
267 ;; "Return a list of all currently defined language environments."
|
|
|
268 ;; language-environment-list)
|
|
|
269
|
|
|
270 ;; (defun language-environment-p (sym)
|
|
|
271 ;; "True if SYM names a defined language environment."
|
|
|
272 ;; (memq sym (language-environment-list)))
|
|
|
273
|
|
|
274 ;; (defun set-language-environment (env)
|
|
|
275 ;; "Set the current language environment to ENV."
|
|
|
276 ;; (interactive
|
|
|
277 ;; (list (intern (completing-read "Language environment: "
|
|
|
278 ;; obarray 'language-environment-p
|
|
|
279 ;; 'require-match))))
|
|
|
280 ;; (when (not (string= (charset-registry 'ascii) "iso8859-1"))
|
|
|
281 ;; (set-charset-registry 'ascii "iso8859-1"))
|
|
|
282 ;; (let ((func (get env 'set-lang-environ)))
|
|
|
283 ;; (if (not (null func))
|
|
|
284 ;; (funcall func)))
|
|
|
285 ;; (setq current-language-environment env)
|
|
|
286 ;; (if (featurep 'egg)
|
|
|
287 ;; (egg-lang-switch-callback))
|
|
|
288 ;; ;; (if (featurep 'quail)
|
|
|
289 ;; ;; (quail-lang-switch-callback))
|
|
|
290 ;; )
|
|
|
291
|
|
|
292 ;; (defun define-language-environment (env-sym doc-string enable-function)
|
|
|
293 ;; "Define a new language environment, named by ENV-SYM.
|
|
|
294 ;; DOC-STRING should be a string describing the environment.
|
|
|
295 ;; ENABLE-FUNCTION should be a function of no arguments that will be called
|
|
|
296 ;; when the language environment is made current."
|
|
|
297 ;; (put env-sym 'lang-environ-doc-string doc-string)
|
|
|
298 ;; (put env-sym 'set-lang-environ enable-function)
|
|
|
299 ;; (setq language-environment-list (cons env-sym language-environment-list)))
|
|
|
300
|
|
|
301 (defun define-egg-environment (env-sym doc-string enable-function)
|
|
|
302 "Define a new language environment for egg, named by ENV-SYM.
|
|
|
303 DOC-STRING should be a string describing the environment.
|
|
|
304 ENABLE-FUNCTION should be a function of no arguments that will be called
|
|
|
305 when the language environment is made current."
|
|
|
306 (put env-sym 'egg-environ-doc-string doc-string)
|
|
|
307 (put env-sym 'set-egg-environ enable-function))
|
|
|
308
|
|
|
309 ;; (defun define-quail-environment (env-sym doc-string enable-function)
|
|
|
310 ;; "Define a new language environment for quail, named by ENV-SYM.
|
|
|
311 ;; DOC-STRING should be a string describing the environment.
|
|
|
312 ;; ENABLE-FUNCTION should be a function of no arguments that will be called
|
|
|
313 ;; when the language environment is made current."
|
|
|
314 ;; (put env-sym 'quail-environ-doc-string doc-string)
|
|
|
315 ;; (put env-sym 'set-quail-environ enable-function))
|
|
|
316
|
|
422
|
317
|
|
|
318 ;;; @ coding-system category
|
|
|
319 ;;;
|
|
|
320
|
|
|
321 (defun coding-system-get (coding-system prop)
|
|
|
322 "Extract a value from CODING-SYSTEM's property list for property PROP."
|
|
|
323 (or (plist-get
|
|
|
324 (get (coding-system-name coding-system) 'coding-system-property)
|
|
|
325 prop)
|
|
|
326 (condition-case nil
|
|
|
327 (coding-system-property coding-system prop)
|
|
|
328 (error nil))))
|
|
|
329
|
|
|
330 (defun coding-system-put (coding-system prop val)
|
|
|
331 "Change value in CODING-SYSTEM's property list PROP to VAL."
|
|
|
332 (put (coding-system-name coding-system)
|
|
|
333 'coding-system-property
|
|
|
334 (plist-put (get (coding-system-name coding-system)
|
|
|
335 'coding-system-property)
|
|
|
336 prop val)))
|
|
|
337
|
|
|
338 (defun coding-system-category (coding-system)
|
|
|
339 "Return the coding category of CODING-SYSTEM."
|
|
|
340 (or (coding-system-get coding-system 'category)
|
|
|
341 (let ((type (coding-system-type coding-system)))
|
|
|
342 (cond ((eq type 'no-conversion)
|
|
|
343 'no-conversion)
|
|
|
344 ((eq type 'shift-jis)
|
|
|
345 'shift-jis)
|
|
|
346 ((eq type 'ucs-4)
|
|
|
347 'ucs-4)
|
|
|
348 ((eq type 'utf-8)
|
|
|
349 'utf-8)
|
|
|
350 ((eq type 'big5)
|
|
|
351 'big5)
|
|
|
352 ((eq type 'iso2022)
|
|
|
353 (cond ((coding-system-lock-shift coding-system)
|
|
|
354 'iso-lock-shift)
|
|
|
355 ((coding-system-seven coding-system)
|
|
|
356 'iso-7)
|
|
|
357 (t
|
|
|
358 (let ((dim 0)
|
|
|
359 ccs
|
|
|
360 (i 0))
|
|
|
361 (while (< i 4)
|
|
|
362 (setq ccs (coding-system-charset coding-system i))
|
|
|
363 (if (and ccs
|
|
|
364 (> (charset-dimension ccs) dim))
|
|
|
365 (setq dim (charset-dimension ccs))
|
|
|
366 )
|
|
|
367 (setq i (1+ i)))
|
|
|
368 (cond ((= dim 1) 'iso-8-1)
|
|
|
369 ((= dim 2) 'iso-8-2)
|
|
|
370 (t 'iso-8-designate))
|
|
|
371 ))))))))
|
|
|
372
|
|
333
|
373 ;;; mule-misc.el ends here
|
