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4ed46869 KH |
1 | ;;; mule-cmds.el --- Commands for mulitilingual environment |
2 | ||
4ed46869 | 3 | ;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN. |
fa526c4a | 4 | ;; Licensed to the Free Software Foundation. |
4ed46869 KH |
5 | |
6 | ;; Keywords: mule, multilingual | |
7 | ||
8 | ;; This file is part of GNU Emacs. | |
9 | ||
10 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
11 | ;; it under the terms of the GNU General Public License as published by | |
12 | ;; the Free Software Foundation; either version 2, or (at your option) | |
13 | ;; any later version. | |
14 | ||
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
369314dc KH |
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. | |
4ed46869 KH |
24 | |
25 | ;;; Code: | |
26 | ||
27 | ;;; MULE related key bindings and menus. | |
28 | ||
0709d285 | 29 | (defvar mule-keymap (make-sparse-keymap) |
4ed46869 | 30 | "Keymap for MULE (Multilingual environment) specific commands.") |
4ed46869 | 31 | |
8f81f784 | 32 | ;; Keep "C-x C-m ..." for mule specific commands. |
0709d285 | 33 | (define-key ctl-x-map "\C-m" mule-keymap) |
ef8a8c8c | 34 | |
4ed46869 KH |
35 | (define-key mule-keymap "f" 'set-buffer-file-coding-system) |
36 | (define-key mule-keymap "t" 'set-terminal-coding-system) | |
15b3e511 KH |
37 | (define-key mule-keymap "k" 'set-keyboard-coding-system) |
38 | (define-key mule-keymap "p" 'set-buffer-process-coding-system) | |
8b784951 | 39 | (define-key mule-keymap "\C-\\" 'set-input-method) |
15b3e511 | 40 | (define-key mule-keymap "c" 'universal-coding-system-argument) |
b4fba33f | 41 | (define-key mule-keymap "l" 'set-language-environment) |
4ed46869 | 42 | |
281d03ec | 43 | (define-key help-map "\C-L" 'describe-language-environment) |
ac4a3a2d | 44 | (define-key help-map "L" 'describe-language-environment) |
4ed46869 | 45 | (define-key help-map "\C-\\" 'describe-input-method) |
ac4a3a2d | 46 | (define-key help-map "I" 'describe-input-method) |
d0b9c3ab | 47 | (define-key help-map "C" 'describe-coding-system) |
4ed46869 KH |
48 | (define-key help-map "h" 'view-hello-file) |
49 | ||
0709d285 | 50 | (defvar mule-menu-keymap (make-sparse-keymap "Mule") |
15b3e511 | 51 | "Keymap for MULE (Multilingual environment) menu specific commands.") |
15b3e511 KH |
52 | |
53 | (define-key global-map [menu-bar mule] (cons "Mule" mule-menu-keymap)) | |
54 | ||
55 | (setq menu-bar-final-items (cons 'mule menu-bar-final-items)) | |
56 | ||
281d03ec RS |
57 | (defvar describe-language-environment-map nil) |
58 | (define-prefix-command 'describe-language-environment-map) | |
15b3e511 KH |
59 | |
60 | (defvar setup-language-environment-map nil) | |
61 | (define-prefix-command 'setup-language-environment-map) | |
62 | ||
63 | (defvar set-coding-system-map nil) | |
64 | (define-prefix-command 'set-coding-system-map) | |
65 | ||
281d03ec | 66 | (define-key-after mule-menu-keymap [describe-language-environment] |
8e02924a | 67 | '("Describe Language Environment" . describe-language-environment-map) |
15b3e511 KH |
68 | t) |
69 | (define-key-after mule-menu-keymap [set-language-environment] | |
8e02924a | 70 | '("Set Language Environment" . setup-language-environment-map) |
15b3e511 | 71 | t) |
a61f401d | 72 | (define-key-after mule-menu-keymap [mouse-set-font] |
8e02924a | 73 | '("Set Font/Fontset" . mouse-set-font) |
a61f401d | 74 | t) |
15b3e511 KH |
75 | (define-key-after mule-menu-keymap [separator-mule] |
76 | '("--") | |
77 | t) | |
78 | (define-key-after mule-menu-keymap [toggle-input-method] | |
8e02924a | 79 | '("Toggle Input Method" . toggle-input-method) |
15b3e511 | 80 | t) |
8b784951 KH |
81 | (define-key-after mule-menu-keymap [set-input-method] |
82 | '("Select Input Method" . set-input-method) | |
15b3e511 KH |
83 | t) |
84 | (define-key-after mule-menu-keymap [describe-input-method] | |
8e02924a | 85 | '("Describe Input Method" . describe-input-method) |
15b3e511 KH |
86 | t) |
87 | (define-key-after mule-menu-keymap [separator-input-method] | |
88 | '("--") | |
89 | t) | |
d0b9c3ab | 90 | (define-key-after mule-menu-keymap [describe-coding-system] |
8e02924a | 91 | '("Describe Coding Systems" . describe-coding-system) |
15b3e511 KH |
92 | t) |
93 | (define-key-after mule-menu-keymap [set-various-coding-system] | |
8e02924a | 94 | '("Set Coding System" . set-coding-system-map) |
15b3e511 KH |
95 | t) |
96 | (define-key-after mule-menu-keymap [separator-coding-system] | |
97 | '("--") | |
98 | t) | |
99 | (define-key-after mule-menu-keymap [mule-diag] | |
8e02924a | 100 | '("Show All of MULE Status" . mule-diag) |
15b3e511 KH |
101 | t) |
102 | (define-key-after mule-menu-keymap [view-hello-file] | |
8e02924a | 103 | '("Show Script Examples" . view-hello-file) |
15b3e511 KH |
104 | t) |
105 | ||
106 | (define-key-after set-coding-system-map [set-buffer-file-coding-system] | |
8e02924a | 107 | '("Buffer File" . set-buffer-file-coding-system) |
15b3e511 | 108 | t) |
3a151e98 RS |
109 | (define-key-after set-coding-system-map [universal-coding-system-argument] |
110 | '("Next Command" . universal-coding-system-argument) | |
111 | t) | |
15b3e511 KH |
112 | (define-key-after set-coding-system-map [set-terminal-coding-system] |
113 | '("Terminal" . set-terminal-coding-system) | |
114 | t) | |
115 | (define-key-after set-coding-system-map [set-keyboard-coding-system] | |
116 | '("Keyboard" . set-keyboard-coding-system) | |
117 | t) | |
118 | (define-key-after set-coding-system-map [set-buffer-process-coding-system] | |
8e02924a | 119 | '("Buffer Process" . set-buffer-process-coding-system) |
15b3e511 KH |
120 | t) |
121 | ||
122 | (define-key setup-language-environment-map | |
123 | [Default] '("Default" . setup-specified-language-environment)) | |
4ed46869 KH |
124 | |
125 | ;; These are meaningless when running under X. | |
4ed46869 | 126 | (put 'set-terminal-coding-system 'menu-enable |
9ba344f7 | 127 | '(not (eq window-system 'x))) |
15b3e511 | 128 | (put 'set-keyboard-coding-system 'menu-enable |
9ba344f7 | 129 | '(not (eq window-system 'x))) |
d0b9c3ab KH |
130 | ;; This is meaningless when the current buffer has no process. |
131 | (put 'set-buffer-process-coding-system 'menu-enable | |
132 | '(get-buffer-process (current-buffer))) | |
4ed46869 | 133 | |
4ed46869 KH |
134 | ;; This should be a single character key binding because users use it |
135 | ;; very frequently while editing multilingual text. Now we can use | |
136 | ;; only two such keys: "\C-\\" and "\C-^", but the latter is not | |
137 | ;; convenient because it requires shifting on most keyboards. An | |
138 | ;; alternative is "\C-\]" which is now bound to `abort-recursive-edit' | |
139 | ;; but it won't be used that frequently. | |
140 | (define-key global-map "\C-\\" 'toggle-input-method) | |
141 | ||
a2ad45b9 RS |
142 | ;;; This is no good because people often type Shift-SPC |
143 | ;;; meaning to type SPC. -- rms. | |
144 | ;;; ;; Here's an alternative key binding for X users (Shift-SPACE). | |
145 | ;;; (define-key global-map [?\S- ] 'toggle-input-method) | |
b4fba33f | 146 | |
4ed46869 | 147 | (defun toggle-enable-multibyte-characters (&optional arg) |
6998e1a1 RS |
148 | "Change whether this buffer uses multibyte characters. |
149 | With arg, use multibyte characters if the arg is positive. | |
150 | ||
151 | Note that this command does not convert the byte contents of | |
152 | the buffer; it only changes the way those bytes are interpreted. | |
153 | In general, therefore, this command *changes* the sequence of | |
154 | characters that the current buffer contains. | |
155 | ||
156 | We suggest you avoid using use this command unless you know what you | |
157 | are doing. If you use it by mistake, and the buffer is now displayed | |
158 | wrong, use this command again to toggle back to the right mode." | |
4ed46869 KH |
159 | (interactive "P") |
160 | (setq enable-multibyte-characters | |
161 | (if (null arg) (null enable-multibyte-characters) | |
162 | (> (prefix-numeric-value arg) 0))) | |
163 | (force-mode-line-update)) | |
164 | ||
165 | (defun view-hello-file () | |
166 | "Display the HELLO file which list up many languages and characters." | |
167 | (interactive) | |
8f81f784 KH |
168 | ;; We have to decode the file in any environment. |
169 | (let ((default-enable-multibyte-characters t) | |
95fa03b4 | 170 | (coding-system-for-read 'iso-2022-7bit)) |
8f81f784 | 171 | (find-file-read-only (expand-file-name "HELLO" data-directory)))) |
4ed46869 | 172 | |
15b3e511 KH |
173 | (defun universal-coding-system-argument () |
174 | "Execute an I/O command using the specified coding system." | |
175 | (interactive) | |
e14a8f4c | 176 | (let* ((coding-system (read-coding-system "Coding system for following command: ")) |
15b3e511 | 177 | (keyseq (read-key-sequence |
e14a8f4c | 178 | (format "Command to execute with %s:" coding-system))) |
15b3e511 KH |
179 | (cmd (key-binding keyseq))) |
180 | (let ((coding-system-for-read coding-system) | |
181 | (coding-system-for-write coding-system)) | |
182 | (message "") | |
183 | (call-interactively cmd)))) | |
184 | ||
de94d711 | 185 | (defun set-default-coding-systems (coding-system) |
0c3154d2 | 186 | "Set default value of various coding systems to CODING-SYSTEM. |
8efc03e1 | 187 | This sets the follwing coding systems: |
0c3154d2 | 188 | o coding system of a newly created buffer |
8efc03e1 KH |
189 | o default coding system for subprocess I/O |
190 | This also sets the following values: | |
191 | o default value for the command `set-terminal-coding-system' | |
192 | o default value for the command `set-keyboard-coding-system'" | |
de94d711 KH |
193 | (check-coding-system coding-system) |
194 | (setq-default buffer-file-coding-system coding-system) | |
195 | (setq default-terminal-coding-system coding-system) | |
196 | (setq default-keyboard-coding-system coding-system) | |
197 | (setq default-process-coding-system (cons coding-system coding-system))) | |
198 | ||
0c3154d2 KH |
199 | (defun prefer-coding-system (coding-system) |
200 | "Add CODING-SYSTEM at the front of the priority list for automatic detection. | |
8efc03e1 | 201 | This also sets the follwing coding systems: |
0c3154d2 | 202 | o coding system of a newly created buffer |
8efc03e1 KH |
203 | o default coding system for subprocess I/O |
204 | This also sets the following values: | |
205 | o default value for the command `set-terminal-coding-system' | |
206 | o default value for the command `set-keyboard-coding-system'" | |
0c3154d2 KH |
207 | (interactive "zPrefer coding system: ") |
208 | (if (not (and coding-system (coding-system-p coding-system))) | |
209 | (error "Invalid coding system `%s'" coding-system)) | |
210 | (let ((coding-category (coding-system-category coding-system)) | |
8efc03e1 | 211 | (base (coding-system-base coding-system))) |
0c3154d2 KH |
212 | (if (not coding-category) |
213 | ;; CODING-SYSTEM is no-conversion or undecided. | |
214 | (error "Can't prefer the coding system `%s'" coding-system)) | |
8efc03e1 | 215 | (set coding-category (or base coding-system)) |
54b226f7 | 216 | (update-iso-coding-systems) |
0c3154d2 KH |
217 | (if (not (eq coding-category (car coding-category-list))) |
218 | ;; We must change the order. | |
219 | (setq coding-category-list | |
220 | (cons coding-category | |
221 | (delq coding-category coding-category-list)))) | |
8efc03e1 KH |
222 | (if (and base (interactive-p)) |
223 | (message "Highest priority is set to %s (base of %s)" | |
224 | base coding-system)) | |
225 | (set-default-coding-systems (or base coding-system)))) | |
0c3154d2 | 226 | |
54b226f7 KH |
227 | (defun list-subset-p (list1 list2) |
228 | "Return non-nil if all elements in LIST1 are included in LIST2. | |
229 | Comparison done with EQ." | |
230 | (catch 'tag | |
231 | (while list1 | |
232 | (or (memq (car list1) list2) | |
233 | (throw 'tag nil)) | |
234 | (setq list1 (cdr list1))) | |
235 | t)) | |
236 | ||
237 | (defun find-safe-coding-system (from to) | |
238 | "Return a list of proper coding systems to encode a text between FROM and TO. | |
239 | All coding systems in the list can safely encode any multibyte characters | |
240 | in the text. | |
241 | ||
242 | If the text contains no multibyte charcters, return a list of a single | |
243 | element `undecided'. | |
244 | ||
245 | Kludgy feature: if FROM is a string, the string is the target text, | |
246 | and TO is ignored." | |
247 | (let ((charset-list (if (stringp from) (find-charset-string from) | |
248 | (find-charset-region from to)))) | |
249 | (if (and (= (length charset-list) 1) | |
250 | (eq 'ascii (car charset-list))) | |
251 | '(undecided) | |
252 | (let ((l coding-system-list) | |
253 | (prefered-codings | |
254 | (mapcar (function | |
255 | (lambda (x) | |
256 | (get-charset-property x 'prefered-coding-system))) | |
257 | charset-list)) | |
258 | codings coding safe) | |
259 | (while l | |
260 | (setq coding (car l) l (cdr l)) | |
261 | (if (and (eq coding (coding-system-base coding)) | |
262 | (setq safe (coding-system-get coding 'safe-charsets)) | |
263 | (or (eq safe t) | |
264 | (list-subset-p charset-list safe))) | |
265 | ;; We put the higher priority to coding systems included | |
266 | ;; in PREFERED-CODINGS, and within them, put the higher | |
267 | ;; priority to coding systems which support smaller | |
268 | ;; number of charsets. | |
269 | (let ((priority | |
270 | (logior (if (coding-system-get coding 'mime-charset) | |
271 | 256 0) | |
272 | (if (memq coding prefered-codings) 128 0) | |
273 | (if (> (coding-system-type coding) 0) 64 0) | |
274 | (if (consp safe) (- 64 (length safe)) 0)))) | |
275 | (setq codings (cons (cons priority coding) codings))))) | |
276 | (mapcar 'cdr | |
277 | (sort codings (function (lambda (x y) (> (car x) (car y)))))) | |
278 | )))) | |
279 | ||
280 | (defun select-safe-coding-system (from to &optional default-coding-system) | |
281 | "Return a coding system which can encode a text between FROM and TO. | |
282 | ||
283 | Optional arg DEFAULT-CODING-SYSTEM specifies a coding system to be | |
284 | checked at first. If omitted, buffer-file-coding-system of the | |
285 | current buffer is used. | |
286 | ||
287 | If the text contains some multibyte characters and | |
288 | DEFAULT-CODING-SYSTEM can't encode them, ask a user to select one from | |
289 | a list of coding systems which can encode the text, and return the | |
290 | selected one. | |
291 | ||
292 | In other cases, return DEFAULT-CODING-SYSTEM. | |
293 | ||
294 | Kludgy feature: if FROM is a string, the string is the target text, | |
295 | and TO is ignored." | |
296 | (or default-coding-system | |
297 | (setq default-coding-system buffer-file-coding-system)) | |
298 | (let ((safe-coding-systems (find-safe-coding-system from to))) | |
299 | (if (or (eq (car safe-coding-systems) 'undecided) | |
300 | (and default-coding-system | |
301 | (memq (coding-system-base default-coding-system) | |
302 | safe-coding-systems))) | |
303 | default-coding-system | |
304 | ||
305 | ;; Ask a user to select a proper coding system. | |
306 | (save-window-excursion | |
307 | ;; At first, show a helpful message. | |
308 | (with-output-to-temp-buffer "*Warning*" | |
309 | (save-excursion | |
310 | (set-buffer standard-output) | |
311 | (insert (format "\ | |
312 | The target text contains a multibyte character which can't be | |
313 | encoded safely by the coding system %s. | |
314 | ||
315 | Please select one from the following safe coding systems:\n" | |
316 | default-coding-system)) | |
317 | (let ((pos (point)) | |
318 | (fill-prefix " ")) | |
319 | (mapcar (function (lambda (x) (princ " ") (princ x))) | |
320 | safe-coding-systems) | |
321 | (fill-region-as-paragraph pos (point))))) | |
322 | ||
323 | ;; Read a coding system. | |
324 | (let* ((safe-names (mapcar (lambda (x) (list (symbol-name x))) | |
325 | safe-coding-systems)) | |
326 | (name (completing-read | |
327 | (format "Select coding system (default %s): " | |
328 | (car safe-coding-systems)) | |
329 | safe-names nil t nil nil (car (car safe-names))))) | |
330 | (intern name)))))) | |
331 | ||
332 | (setq select-safe-coding-system-function 'select-safe-coding-system) | |
333 | ||
4ed46869 KH |
334 | \f |
335 | ;;; Language support staffs. | |
336 | ||
4ed46869 KH |
337 | (defvar language-info-alist nil |
338 | "Alist of language names vs the corresponding information of various kind. | |
339 | Each element looks like: | |
340 | (LANGUAGE-NAME . ((KEY . INFO) ...)) | |
341 | where LANGUAGE-NAME is a string, | |
342 | KEY is a symbol denoting the kind of information, | |
343 | INFO is any Lisp object which contains the actual information related | |
344 | to KEY.") | |
345 | ||
346 | (defun get-language-info (language-name key) | |
347 | "Return the information for LANGUAGE-NAME of the kind KEY. | |
4ed46869 | 348 | KEY is a symbol denoting the kind of required information." |
4ef06f75 KH |
349 | (if (symbolp language-name) |
350 | (setq language-name (symbol-name language-name))) | |
15b3e511 | 351 | (let ((lang-slot (assoc-ignore-case language-name language-info-alist))) |
4ed46869 KH |
352 | (if lang-slot |
353 | (cdr (assq key (cdr lang-slot)))))) | |
354 | ||
54b226f7 KH |
355 | (defun set-language-info (language-name key info |
356 | &optional describe-map setup-map) | |
4ed46869 | 357 | "Set for LANGUAGE-NAME the information INFO under KEY. |
4ed46869 | 358 | KEY is a symbol denoting the kind of information. |
54b226f7 KH |
359 | INFO is any Lisp object which contains the actual information specific |
360 | to LANGUAGE-NAME. | |
4ed46869 KH |
361 | |
362 | Currently, the following KEYs are used by Emacs: | |
281d03ec | 363 | |
54b226f7 KH |
364 | charset: list of charsets. |
365 | ||
366 | coding-system: list of coding systems. | |
281d03ec | 367 | |
54b226f7 | 368 | coding-priority: list of coding systems ordered by priority. |
281d03ec | 369 | |
4ed46869 | 370 | tutorial: a tutorial file name written in the language. |
281d03ec | 371 | |
4ed46869 | 372 | sample-text: one line short text containing characters of the language. |
281d03ec | 373 | |
15b3e511 | 374 | documentation: t or a string describing how Emacs supports the language. |
54b226f7 KH |
375 | If a string is specified, it is shown before any other information |
376 | of the language by the command `describe-language-environment'. | |
281d03ec | 377 | |
13e82c04 | 378 | setup-function: a function to call for setting up environment |
54b226f7 | 379 | convenient for a user of the language. |
13e82c04 | 380 | |
281d03ec | 381 | We will define more KEYs in the future. To avoid conflict, |
54b226f7 KH |
382 | if you want to use your own KEY values, make them start with `user-'. |
383 | ||
384 | Optional 4th and 5th args DESCRIBE-MAP and SETUP-MAP are keymaps to | |
385 | register LANGUAGE-NAME in the menu of `Mule'->`Describe Language | |
386 | Environment' and `Mule'->`Setup Language Environment' respectively." | |
4ef06f75 KH |
387 | (if (symbolp language-name) |
388 | (setq language-name (symbol-name language-name))) | |
4ed46869 KH |
389 | (let (lang-slot key-slot) |
390 | (setq lang-slot (assoc language-name language-info-alist)) | |
391 | (if (null lang-slot) ; If no slot for the language, add it. | |
392 | (setq lang-slot (list language-name) | |
393 | language-info-alist (cons lang-slot language-info-alist))) | |
394 | (setq key-slot (assq key lang-slot)) | |
395 | (if (null key-slot) ; If no slot for the key, add it. | |
396 | (progn | |
397 | (setq key-slot (list key)) | |
398 | (setcdr lang-slot (cons key-slot (cdr lang-slot))))) | |
4ed46869 | 399 | ;; Setup menu. |
48082651 | 400 | (cond ((eq key 'documentation) |
54b226f7 KH |
401 | (define-key-after describe-map (vector (intern language-name)) |
402 | (cons language-name 'describe-specified-language-support) t)) | |
ef8a8c8c | 403 | ((eq key 'setup-function) |
54b226f7 KH |
404 | (define-key-after setup-map (vector (intern language-name)) |
405 | (cons language-name 'setup-specified-language-environment) t))) | |
15b3e511 KH |
406 | |
407 | (setcdr key-slot info) | |
4ed46869 KH |
408 | )) |
409 | ||
54b226f7 | 410 | (defun set-language-info-alist (language-name alist &optional parents) |
4ed46869 KH |
411 | "Set for LANGUAGE-NAME the information in ALIST. |
412 | ALIST is an alist of KEY and INFO. See the documentation of | |
54b226f7 KH |
413 | `set-langauge-info' for the meanings of KEY and INFO. |
414 | ||
415 | Optional arg PARENTS is a list of parent language environments ordered | |
416 | from the highest to the lower. If it is nil, we make LANGUAGE-NAME | |
417 | the top level language environment." | |
4ef06f75 KH |
418 | (if (symbolp language-name) |
419 | (setq language-name (symbol-name language-name))) | |
54b226f7 KH |
420 | (let ((describe-map describe-language-environment-map) |
421 | (setup-map setup-language-environment-map)) | |
422 | (if parents | |
423 | (let ((l parents) | |
424 | map parent-symbol parent) | |
425 | (while l | |
426 | (if (symbolp (setq parent-symbol (car l))) | |
427 | (setq parent (symbol-name parent)) | |
428 | (setq parent parent-symbol parent-symbol (intern parent))) | |
429 | (setq map (lookup-key describe-map (vector parent-symbol))) | |
430 | (if (not map) | |
431 | (progn | |
432 | (setq map (intern (format "describe-%s-environment-map" | |
433 | (downcase parent)))) | |
434 | (define-prefix-command map) | |
435 | (define-key-after describe-map (vector parent-symbol) | |
436 | (cons parent map) t))) | |
437 | (setq describe-map (symbol-value map)) | |
438 | (setq map (lookup-key setup-map (vector parent-symbol))) | |
439 | (if (not map) | |
440 | (progn | |
441 | (setq map (intern (format "setup-%s-environment-map" | |
442 | (downcase parent)))) | |
443 | (define-prefix-command map) | |
444 | (define-key-after setup-map (vector parent-symbol) | |
445 | (cons parent map) t))) | |
446 | (setq setup-map (symbol-value map)) | |
447 | (setq l (cdr l))))) | |
448 | (while alist | |
449 | (set-language-info language-name (car (car alist)) (cdr (car alist)) | |
450 | describe-map setup-map) | |
451 | (setq alist (cdr alist))))) | |
4ed46869 | 452 | |
ae302641 | 453 | (defun read-language-name (key prompt &optional default) |
4ef06f75 | 454 | "Read language name which has information for KEY, prompting with PROMPT. |
ae302641 | 455 | DEFAULT is the default choice of language. |
fc0678af | 456 | This returns a language name as a string." |
4ed46869 KH |
457 | (let* ((completion-ignore-case t) |
458 | (name (completing-read prompt | |
459 | language-info-alist | |
460 | (function (lambda (elm) (assq key elm))) | |
ae302641 | 461 | t nil nil default))) |
13e82c04 KH |
462 | (if (and (> (length name) 0) |
463 | (get-language-info name key)) | |
464 | name))) | |
4ed46869 KH |
465 | \f |
466 | ;;; Multilingual input methods. | |
467 | ||
d0b9c3ab KH |
468 | (defconst leim-list-file-name "leim-list.el" |
469 | "Name of LEIM list file. | |
470 | This file contains a list of libraries of Emacs input methods (LEIM) | |
471 | in the format of Lisp expression for registering each input method. | |
472 | Emacs loads this file at startup time.") | |
473 | ||
474 | (defvar leim-list-header (format "\ | |
475 | ;;; %s -- list of LEIM (Library of Emacs Input Method) | |
476 | ;; | |
477 | ;; This file contains a list of LEIM (Library of Emacs Input Method) | |
478 | ;; in the same directory as this file. Loading this file registeres | |
479 | ;; the whole input methods in Emacs. | |
480 | ;; | |
d33d5fbe | 481 | ;; Each entry has the form: |
d0b9c3ab KH |
482 | ;; (register-input-method |
483 | ;; INPUT-METHOD LANGUAGE-NAME ACTIVATE-FUNC | |
484 | ;; TITLE DESCRIPTION | |
485 | ;; ARG ...) | |
486 | ;; See the function `register-input-method' for the meanings of arguments. | |
487 | ;; | |
488 | ;; If this directory is included in load-path, Emacs automatically | |
489 | ;; loads this file at startup time. | |
490 | ||
491 | " | |
492 | leim-list-file-name) | |
493 | "Header to be inserted in LEIM list file.") | |
494 | ||
e55e92ee | 495 | (defvar leim-list-entry-regexp "^(register-input-method" |
d0b9c3ab KH |
496 | "Regexp matching head of each entry in LEIM list file. |
497 | See also the variable `leim-list-header'") | |
498 | ||
499 | (defvar update-leim-list-functions | |
500 | '(quail-update-leim-list-file) | |
501 | "List of functions to call to update LEIM list file. | |
502 | Each function is called with one arg, LEIM directory name.") | |
503 | ||
a337fe7f RS |
504 | (defun update-leim-list-file (&rest dirs) |
505 | "Update LEIM list file in directories DIRS." | |
d0b9c3ab KH |
506 | (let ((functions update-leim-list-functions)) |
507 | (while functions | |
a337fe7f | 508 | (apply (car functions) dirs) |
d0b9c3ab KH |
509 | (setq functions (cdr functions))))) |
510 | ||
4ed46869 KH |
511 | (defvar current-input-method nil |
512 | "The current input method for multilingual text. | |
96db204a | 513 | If nil, that means no input method is activated now.") |
4ed46869 KH |
514 | (make-variable-buffer-local 'current-input-method) |
515 | (put 'current-input-method 'permanent-local t) | |
516 | ||
517 | (defvar current-input-method-title nil | |
d0b9c3ab | 518 | "Title string of the current input method shown in mode line.") |
4ed46869 KH |
519 | (make-variable-buffer-local 'current-input-method-title) |
520 | (put 'current-input-method-title 'permanent-local t) | |
521 | ||
b4fba33f KH |
522 | (defcustom default-input-method nil |
523 | "*Default input method for multilingual text. | |
524 | This is the input method activated automatically by the command | |
9b10b5a3 | 525 | `toggle-input-method' (\\[toggle-input-method])." |
b4fba33f KH |
526 | :group 'mule) |
527 | ||
723a427a KH |
528 | (defvar input-method-history nil |
529 | "History list for some commands that read input methods.") | |
530 | (make-variable-buffer-local 'input-method-history) | |
531 | (put 'input-method-history 'permanent-local t) | |
4ed46869 KH |
532 | |
533 | (defvar inactivate-current-input-method-function nil | |
534 | "Function to call for inactivating the current input method. | |
535 | Every input method should set this to an appropriate value when activated. | |
f17ccaee KH |
536 | This function is called with no argument. |
537 | ||
538 | This function should never change the value of `current-input-method'. | |
539 | It is set to nil by the function `inactivate-input-method'.") | |
4ed46869 KH |
540 | (make-variable-buffer-local 'inactivate-current-input-method-function) |
541 | (put 'inactivate-current-input-method-function 'permanent-local t) | |
542 | ||
543 | (defvar describe-current-input-method-function nil | |
544 | "Function to call for describing the current input method. | |
545 | This function is called with no argument.") | |
546 | (make-variable-buffer-local 'describe-current-input-method-function) | |
547 | (put 'describe-current-input-method-function 'permanent-local t) | |
548 | ||
d0b9c3ab KH |
549 | (defvar input-method-alist nil |
550 | "Alist of input method names vs the corresponding information to use it. | |
551 | Each element has the form: | |
552 | (INPUT-METHOD LANGUAGE-NAME ACTIVATE-FUNC TITLE DESCRIPTION ...) | |
553 | See the function `register-input-method' for the meanings of each elements.") | |
554 | ||
555 | (defun register-input-method (input-method language-name &rest args) | |
556 | "Register INPUT-METHOD as an input method for LANGUAGE-NAME. | |
4ef06f75 | 557 | INPUT-METHOD and LANGUAGE-NAME are symbols or strings. |
d0b9c3ab KH |
558 | The remaining arguments are: |
559 | ACTIVATE-FUNC, TITLE, DESCRIPTION, and ARG ... | |
560 | where, | |
561 | ACTIVATE-FUNC is a function to call for activating this method. | |
562 | TITLE is a string shown in mode-line while this method is active, | |
563 | DESCRIPTION is a string describing about this method, | |
564 | Arguments to ACTIVATE-FUNC are INPUT-METHOD and ARGs." | |
4ef06f75 KH |
565 | (if (symbolp language-name) |
566 | (setq language-name (symbol-name language-name))) | |
567 | (if (symbolp input-method) | |
568 | (setq input-method (symbol-name input-method))) | |
d0b9c3ab KH |
569 | (let ((info (cons language-name args)) |
570 | (slot (assoc input-method input-method-alist))) | |
571 | (if slot | |
572 | (setcdr slot info) | |
573 | (setq slot (cons input-method info)) | |
574 | (setq input-method-alist (cons slot input-method-alist))))) | |
575 | ||
4d5ac029 | 576 | (defun read-input-method-name (prompt &optional default inhibit-null) |
d0b9c3ab | 577 | "Read a name of input method from a minibuffer prompting with PROMPT. |
4d5ac029 RS |
578 | If DEFAULT is non-nil, use that as the default, |
579 | and substitute it into PROMPT at the first `%s'. | |
4ef06f75 KH |
580 | If INHIBIT-NULL is non-nil, null input signals an error. |
581 | ||
582 | The return value is a string." | |
4d5ac029 RS |
583 | (if default |
584 | (setq prompt (format prompt default))) | |
d0b9c3ab | 585 | (let* ((completion-ignore-case t) |
723a427a KH |
586 | ;; This binding is necessary because input-method-history is |
587 | ;; buffer local. | |
d0b9c3ab | 588 | (input-method (completing-read prompt input-method-alist |
87505a98 RS |
589 | nil t nil 'input-method-history |
590 | default))) | |
d0b9c3ab KH |
591 | (if (> (length input-method) 0) |
592 | input-method | |
593 | (if inhibit-null | |
43807b77 | 594 | (error "No valid input method is specified"))))) |
d0b9c3ab | 595 | |
d0b9c3ab | 596 | (defun activate-input-method (input-method) |
f17ccaee KH |
597 | "Turn INPUT-METHOD on. |
598 | If some input method is already on, turn it off at first." | |
4ef06f75 KH |
599 | (if (symbolp input-method) |
600 | (setq input-method (symbol-name input-method))) | |
723a427a KH |
601 | (if (and current-input-method |
602 | (not (string= current-input-method input-method))) | |
42395763 RS |
603 | (inactivate-input-method)) |
604 | (unless current-input-method | |
d0b9c3ab KH |
605 | (let ((slot (assoc input-method input-method-alist))) |
606 | (if (null slot) | |
723a427a | 607 | (error "Can't activate input method `%s'" input-method)) |
8efc03e1 KH |
608 | (let ((func (nth 2 slot))) |
609 | (if (functionp func) | |
610 | (apply (nth 2 slot) input-method (nthcdr 5 slot)) | |
611 | (if (and (consp func) (symbolp (car func)) (symbolp (cdr func))) | |
612 | (progn | |
613 | (require (cdr func)) | |
614 | (apply (car func) input-method (nthcdr 5 slot))) | |
615 | (error "Can't activate input method `%s'" input-method)))) | |
d0b9c3ab | 616 | (setq current-input-method input-method) |
723a427a KH |
617 | (setq current-input-method-title (nth 3 slot)) |
618 | (run-hooks 'input-method-activate-hook)))) | |
15b3e511 | 619 | |
15b3e511 | 620 | (defun inactivate-input-method () |
f17ccaee | 621 | "Turn off the current input method." |
723a427a KH |
622 | (when current-input-method |
623 | (if input-method-history | |
624 | (unless (string= current-input-method (car input-method-history)) | |
625 | (setq input-method-history | |
626 | (cons current-input-method | |
627 | (delete current-input-method input-method-history)))) | |
628 | (setq input-method-history (list current-input-method))) | |
629 | (unwind-protect | |
630 | (funcall inactivate-current-input-method-function) | |
15b3e511 | 631 | (unwind-protect |
723a427a KH |
632 | (run-hooks 'input-method-inactivate-hook) |
633 | (setq current-input-method nil | |
634 | current-input-method-title nil))))) | |
4ed46869 | 635 | |
8b784951 | 636 | (defun set-input-method (input-method) |
723a427a KH |
637 | "Select and turn on INPUT-METHOD. |
638 | This sets the default input method to what you specify, | |
639 | and turn it on for the current buffer." | |
d0b9c3ab | 640 | (interactive |
723a427a | 641 | (let* ((default (or (car input-method-history) default-input-method))) |
42395763 | 642 | (list (read-input-method-name |
87505a98 | 643 | (if default "Select input method (default %s): " "Select input method: ") |
42395763 | 644 | default t)))) |
d0b9c3ab | 645 | (activate-input-method input-method) |
42395763 | 646 | (setq default-input-method input-method)) |
4ed46869 KH |
647 | |
648 | (defun toggle-input-method (&optional arg) | |
15b3e511 | 649 | "Turn on or off a multilingual text input method for the current buffer. |
723a427a | 650 | |
d0b9c3ab | 651 | With arg, read an input method from minibuffer and turn it on. |
723a427a | 652 | |
15b3e511 | 653 | Without arg, if some input method is currently activated, turn it off, |
723a427a KH |
654 | else turn on an input method selected last time |
655 | or the default input method (see `default-input-method'). | |
656 | ||
657 | When there's no input method to turn on, turn on what read from minibuffer." | |
4ed46869 | 658 | (interactive "P") |
723a427a | 659 | (let* ((default (or (car input-method-history) default-input-method))) |
b4fba33f KH |
660 | (if (and current-input-method (not arg)) |
661 | (inactivate-input-method) | |
723a427a KH |
662 | (activate-input-method |
663 | (if (or arg (not default)) | |
664 | (read-input-method-name | |
665 | (if default "Input method (default %s): " "Input method: " ) | |
666 | default t) | |
667 | default)) | |
668 | (or default-input-method | |
669 | (setq default-input-method current-input-method))))) | |
d0b9c3ab KH |
670 | |
671 | (defun describe-input-method (input-method) | |
4ef06f75 | 672 | "Describe input method INPUT-METHOD." |
d0b9c3ab KH |
673 | (interactive |
674 | (list (read-input-method-name | |
675 | "Describe input method (default, current choice): "))) | |
78754934 | 676 | (if (and input-method (symbolp input-method)) |
4ef06f75 | 677 | (setq input-method (symbol-name input-method))) |
d0b9c3ab KH |
678 | (if (null input-method) |
679 | (describe-current-input-method) | |
680 | (with-output-to-temp-buffer "*Help*" | |
681 | (let ((elt (assoc input-method input-method-alist))) | |
682 | (princ (format "Input method: %s (`%s' in mode line) for %s\n %s\n" | |
683 | input-method (nth 3 elt) (nth 1 elt) (nth 4 elt))))))) | |
684 | ||
685 | (defun describe-current-input-method () | |
96db204a | 686 | "Describe the input method currently in use." |
4ed46869 KH |
687 | (if current-input-method |
688 | (if (and (symbolp describe-current-input-method-function) | |
689 | (fboundp describe-current-input-method-function)) | |
690 | (funcall describe-current-input-method-function) | |
691 | (message "No way to describe the current input method `%s'" | |
692 | (cdr current-input-method)) | |
693 | (ding)) | |
d0b9c3ab | 694 | (error "No input method is activated now"))) |
4ed46869 | 695 | |
d3459641 | 696 | (defun read-multilingual-string (prompt &optional initial-input input-method) |
4ed46869 KH |
697 | "Read a multilingual string from minibuffer, prompting with string PROMPT. |
698 | The input method selected last time is activated in minibuffer. | |
15b3e511 | 699 | If optional second arg INITIAL-INPUT is non-nil, insert it in the minibuffer |
d0b9c3ab KH |
700 | initially. |
701 | Optional 3rd argument INPUT-METHOD specifies the input method | |
4ef06f75 KH |
702 | to be activated instead of the one selected last time. It is a symbol |
703 | or a string." | |
88d559ec KH |
704 | (setq input-method |
705 | (or input-method | |
d3459641 | 706 | current-input-method |
88d559ec KH |
707 | default-input-method |
708 | (read-input-method-name "Input method: " nil t))) | |
3df60841 | 709 | (if (and input-method (symbolp input-method)) |
4ef06f75 | 710 | (setq input-method (symbol-name input-method))) |
d3459641 KH |
711 | (let ((previous-input-method current-input-method)) |
712 | (unwind-protect | |
713 | (progn | |
714 | (activate-input-method input-method) | |
715 | (read-string prompt initial-input nil nil t)) | |
716 | (if previous-input-method | |
717 | (activate-input-method previous-input-method) | |
718 | (inactivate-input-method))))) | |
4ed46869 KH |
719 | |
720 | ;; Variables to control behavior of input methods. All input methods | |
721 | ;; should react to these variables. | |
722 | ||
8efc03e1 KH |
723 | (defcustom input-method-verbose-flag 'default |
724 | "*A flag to control extra guidance given by input methods. | |
725 | The value should be nil, t, `complex-only', or `default'. | |
4ed46869 | 726 | |
cb29dfb6 | 727 | The extra guidance is done by showing list of available keys in echo |
8efc03e1 KH |
728 | area. When you use the input method in the minibuffer, the guidance |
729 | is shown at the bottom short window (split from the existing window). | |
c27c4ed8 | 730 | |
8efc03e1 KH |
731 | If the value is t, extra guidance is always given, if the value is |
732 | nil, extra guidance is always suppressed. | |
733 | ||
734 | If the value is `complex-only', only complex input methods such as | |
735 | `chinese-py' and `japanese' give extra guidance. | |
736 | ||
737 | If the value is `default', complex input methods always give extra | |
738 | guidance, but simple input methods give it only when you are not in | |
739 | the minibuffer. | |
740 | ||
741 | See also the variable `input-method-highlight-flag'." | |
742 | :type '(choice (const t) (const nil) (const complex-only) (const default)) | |
42395763 RS |
743 | :group 'mule) |
744 | ||
745 | (defcustom input-method-highlight-flag t | |
746 | "*If this flag is non-nil, input methods highlight partially-entered text. | |
747 | For instance, while you are in the middle of a Quail input method sequence, | |
748 | the text inserted so far is temporarily underlined. | |
8efc03e1 KH |
749 | The underlining goes away when you finish or abort the input method sequence. |
750 | See also the variable `input-method-verbose-flag'." | |
42395763 RS |
751 | :type 'boolean |
752 | :group 'mule) | |
4ed46869 KH |
753 | |
754 | (defvar input-method-activate-hook nil | |
f17ccaee KH |
755 | "Normal hook run just after an input method is activated. |
756 | ||
757 | The variable `current-input-method' keeps the input method name | |
758 | just activated.") | |
4ed46869 KH |
759 | |
760 | (defvar input-method-inactivate-hook nil | |
f17ccaee KH |
761 | "Normal hook run just after an input method is inactivated. |
762 | ||
763 | The variable `current-input-method' still keeps the input method name | |
4d0e6a11 | 764 | just inactivated.") |
4ed46869 KH |
765 | |
766 | (defvar input-method-after-insert-chunk-hook nil | |
767 | "Normal hook run just after an input method insert some chunk of text.") | |
768 | ||
723a427a KH |
769 | (defvar input-method-exit-on-invalid-key nil |
770 | "This flag controls the behaviour of an input method on invalid key input. | |
771 | Usually, when a user types a key which doesn't start any character | |
772 | handled by the input method, the key is handled by turning off the | |
773 | input method temporalily. After the key is handled, the input method is | |
774 | back on. | |
775 | But, if this flag is non-nil, the input method is never back on.") | |
776 | ||
4ed46869 | 777 | \f |
8efc03e1 KH |
778 | (defvar set-language-environment-hook nil |
779 | "Normal hook run after some language environment is set. | |
780 | ||
781 | When you set some hook function here, that effect usually should not | |
782 | be inherited to another language environment. So, you had better set | |
783 | another function in `exit-language-environment-hook' (which see) to | |
784 | cancel the effect.") | |
785 | ||
786 | (defvar exit-language-environment-hook nil | |
787 | "Normal hook run after exiting from some language environment. | |
788 | When this hook is run, the variable `current-language-environment' | |
789 | is still bound to the language environment being exited. | |
790 | ||
791 | This hook is mainly used for cancelling the effect of | |
792 | `set-language-environment-hook' (which-see).") | |
793 | ||
15b3e511 | 794 | (defun setup-specified-language-environment () |
f850d782 | 795 | "Set up multi-lingual environment convenient for the specified language." |
15b3e511 | 796 | (interactive) |
f850d782 | 797 | (let (language-name) |
15b3e511 KH |
798 | (if (and (symbolp last-command-event) |
799 | (or (not (eq last-command-event 'Default)) | |
800 | (setq last-command-event 'English)) | |
f850d782 RS |
801 | (setq language-name (symbol-name last-command-event))) |
802 | (set-language-environment language-name) | |
15b3e511 | 803 | (error "Bogus calling sequence")))) |
4ed46869 | 804 | |
f850d782 RS |
805 | (defvar current-language-environment "English" |
806 | "The last language environment specified with `set-language-environment'.") | |
807 | ||
166246f7 | 808 | (defun set-language-environment (language-name) |
6c05d680 RS |
809 | "Set up multi-lingual environment for using LANGUAGE-NAME. |
810 | This sets the coding system priority and the default input method | |
811 | and sometimes other things." | |
8efc03e1 KH |
812 | (interactive (list (read-language-name |
813 | 'setup-function | |
814 | "Set language environment (default, English): "))) | |
4ef06f75 KH |
815 | (if language-name |
816 | (if (symbolp language-name) | |
817 | (setq language-name (symbol-name language-name))) | |
818 | (setq language-name "English")) | |
b4fba33f | 819 | (if (null (get-language-info language-name 'setup-function)) |
f850d782 | 820 | (error "Language environment not defined: %S" language-name)) |
8efc03e1 KH |
821 | (if current-language-environment |
822 | (let ((func (get-language-info current-language-environment | |
823 | 'exit-function))) | |
e63645c2 KH |
824 | (run-hooks 'exit-language-environment-hook) |
825 | (if (fboundp func) (funcall func)))) | |
f850d782 | 826 | (setq current-language-environment language-name) |
8efc03e1 KH |
827 | (funcall (get-language-info language-name 'setup-function)) |
828 | (run-hooks 'set-language-environment-hook) | |
f850d782 | 829 | (force-mode-line-update t)) |
4ed46869 | 830 | |
54b226f7 KH |
831 | (defun set-language-environment-coding-systems (language-name) |
832 | "Do various coding system setups for language environment LANGUAGE-NAME." | |
833 | (let* ((priority (get-language-info language-name 'coding-priority)) | |
834 | (default-coding (car priority))) | |
835 | (if priority | |
836 | (let ((categories (mapcar 'coding-system-category priority))) | |
837 | (set-default-coding-systems default-coding) | |
838 | (set-coding-priority categories) | |
839 | (while priority | |
840 | (set (car categories) (car priority)) | |
841 | (setq priority (cdr priority) categories (cdr categories))) | |
842 | (update-iso-coding-systems))))) | |
843 | ||
4ed46869 KH |
844 | ;; Print all arguments with `princ', then print "\n". |
845 | (defsubst princ-list (&rest args) | |
846 | (while args (princ (car args)) (setq args (cdr args))) | |
847 | (princ "\n")) | |
848 | ||
48082651 | 849 | ;; Print a language specific information such as input methods, |
13e82c04 | 850 | ;; charsets, and coding systems. This function is intended to be |
48082651 | 851 | ;; called from the menu: |
281d03ec | 852 | ;; [menu-bar mule describe-language-environment LANGUAGE] |
48082651 KH |
853 | ;; and should not run it by `M-x describe-current-input-method-function'. |
854 | (defun describe-specified-language-support () | |
96db204a | 855 | "Describe how Emacs supports the specified language environment." |
48082651 | 856 | (interactive) |
281d03ec | 857 | (let (language-name) |
48082651 | 858 | (if (not (and (symbolp last-command-event) |
281d03ec | 859 | (setq language-name (symbol-name last-command-event)))) |
48082651 | 860 | (error "Bogus calling sequence")) |
281d03ec RS |
861 | (describe-language-environment language-name))) |
862 | ||
863 | (defun describe-language-environment (language-name) | |
864 | "Describe how Emacs supports language environment LANGUAGE-NAME." | |
78754934 KH |
865 | (interactive |
866 | (list (read-language-name | |
867 | 'documentation | |
8adfa8be | 868 | "Describe language environment (default, current choice): "))) |
f850d782 RS |
869 | (if (null language-name) |
870 | (setq language-name current-language-environment)) | |
281d03ec RS |
871 | (if (or (null language-name) |
872 | (null (get-language-info language-name 'documentation))) | |
873 | (error "No documentation for the specified language")) | |
4ef06f75 KH |
874 | (if (symbolp language-name) |
875 | (setq language-name (symbol-name language-name))) | |
281d03ec | 876 | (let ((doc (get-language-info language-name 'documentation))) |
48082651 | 877 | (with-output-to-temp-buffer "*Help*" |
13e82c04 | 878 | (if (stringp doc) |
d0b9c3ab KH |
879 | (progn |
880 | (princ-list doc) | |
881 | (terpri))) | |
15b3e511 KH |
882 | (let ((str (get-language-info language-name 'sample-text))) |
883 | (if (stringp str) | |
884 | (progn | |
281d03ec | 885 | (princ "Sample text:\n") |
d0b9c3ab KH |
886 | (princ-list " " str) |
887 | (terpri)))) | |
281d03ec | 888 | (princ "Input methods:\n") |
d0b9c3ab | 889 | (let ((l input-method-alist)) |
15b3e511 | 890 | (while l |
d0b9c3ab KH |
891 | (if (string= language-name (nth 1 (car l))) |
892 | (princ-list " " (car (car l)) | |
893 | (format " (`%s' in mode line)" (nth 3 (car l))))) | |
15b3e511 | 894 | (setq l (cdr l)))) |
281d03ec RS |
895 | (terpri) |
896 | (princ "Character sets:\n") | |
15b3e511 KH |
897 | (let ((l (get-language-info language-name 'charset))) |
898 | (if (null l) | |
899 | (princ-list " nothing specific to " language-name) | |
900 | (while l | |
901 | (princ-list " " (car l) ": " | |
902 | (charset-description (car l))) | |
903 | (setq l (cdr l))))) | |
281d03ec RS |
904 | (terpri) |
905 | (princ "Coding systems:\n") | |
15b3e511 KH |
906 | (let ((l (get-language-info language-name 'coding-system))) |
907 | (if (null l) | |
908 | (princ-list " nothing specific to " language-name) | |
48082651 | 909 | (while l |
281d03ec RS |
910 | (princ (format " %s (`%c' in mode line):\n\t%s\n" |
911 | (car l) | |
912 | (coding-system-mnemonic (car l)) | |
a904b20b | 913 | (coding-system-doc-string (car l)))) |
8efc03e1 KH |
914 | (let ((aliases (coding-system-get (car l) 'alias-coding-systems))) |
915 | (when aliases | |
916 | (princ "\t") | |
917 | (princ (cons 'alias: (cdr aliases))) | |
918 | (terpri))) | |
15b3e511 | 919 | (setq l (cdr l)))))))) |
4ed46869 KH |
920 | \f |
921 | ;;; Charset property | |
922 | ||
923 | (defsubst get-charset-property (charset propname) | |
924 | "Return the value of CHARSET's PROPNAME property. | |
925 | This is the last value stored with | |
96db204a | 926 | (put-charset-property CHARSET PROPNAME VALUE)." |
4ed46869 KH |
927 | (plist-get (charset-plist charset) propname)) |
928 | ||
929 | (defsubst put-charset-property (charset propname value) | |
930 | "Store CHARSETS's PROPNAME property with value VALUE. | |
931 | It can be retrieved with `(get-charset-property CHARSET PROPNAME)'." | |
932 | (set-charset-plist charset | |
933 | (plist-put (charset-plist charset) propname value))) | |
934 | ||
935 | ;;; Character code property | |
936 | (put 'char-code-property-table 'char-table-extra-slots 0) | |
937 | ||
938 | (defvar char-code-property-table | |
939 | (make-char-table 'char-code-property-table) | |
940 | "Char-table containing a property list of each character code. | |
941 | ||
942 | See also the documentation of `get-char-code-property' and | |
96db204a | 943 | `put-char-code-property'.") |
4ed46869 KH |
944 | |
945 | (defun get-char-code-property (char propname) | |
946 | "Return the value of CHAR's PROPNAME property in `char-code-property-table'." | |
947 | (let ((plist (aref char-code-property-table char))) | |
948 | (if (listp plist) | |
949 | (car (cdr (memq propname plist)))))) | |
950 | ||
951 | (defun put-char-code-property (char propname value) | |
952 | "Store CHAR's PROPNAME property with VALUE in `char-code-property-table'. | |
953 | It can be retrieved with `(get-char-code-property CHAR PROPNAME)'." | |
954 | (let ((plist (aref char-code-property-table char))) | |
955 | (if plist | |
956 | (let ((slot (memq propname plist))) | |
957 | (if slot | |
958 | (setcar (cdr slot) value) | |
959 | (nconc plist (list propname value)))) | |
960 | (aset char-code-property-table char (list propname value))))) | |
961 | ||
962 | ;;; mule-cmds.el ends here |