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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 | 159 | (interactive "P") |
b7079457 RS |
160 | (let ((new-flag |
161 | (if (null arg) (null enable-multibyte-characters) | |
162 | (> (prefix-numeric-value arg) 0)))) | |
163 | (set-buffer-multibyte new-flag)) | |
4ed46869 KH |
164 | (force-mode-line-update)) |
165 | ||
166 | (defun view-hello-file () | |
167 | "Display the HELLO file which list up many languages and characters." | |
168 | (interactive) | |
8f81f784 KH |
169 | ;; We have to decode the file in any environment. |
170 | (let ((default-enable-multibyte-characters t) | |
95fa03b4 | 171 | (coding-system-for-read 'iso-2022-7bit)) |
8f81f784 | 172 | (find-file-read-only (expand-file-name "HELLO" data-directory)))) |
4ed46869 | 173 | |
15b3e511 KH |
174 | (defun universal-coding-system-argument () |
175 | "Execute an I/O command using the specified coding system." | |
176 | (interactive) | |
e14a8f4c | 177 | (let* ((coding-system (read-coding-system "Coding system for following command: ")) |
15b3e511 | 178 | (keyseq (read-key-sequence |
e14a8f4c | 179 | (format "Command to execute with %s:" coding-system))) |
15b3e511 KH |
180 | (cmd (key-binding keyseq))) |
181 | (let ((coding-system-for-read coding-system) | |
182 | (coding-system-for-write coding-system)) | |
183 | (message "") | |
184 | (call-interactively cmd)))) | |
185 | ||
de94d711 | 186 | (defun set-default-coding-systems (coding-system) |
0c3154d2 | 187 | "Set default value of various coding systems to CODING-SYSTEM. |
8efc03e1 | 188 | This sets the follwing coding systems: |
0c3154d2 | 189 | o coding system of a newly created buffer |
8efc03e1 KH |
190 | o default coding system for subprocess I/O |
191 | This also sets the following values: | |
192 | o default value for the command `set-terminal-coding-system' | |
193 | o default value for the command `set-keyboard-coding-system'" | |
de94d711 KH |
194 | (check-coding-system coding-system) |
195 | (setq-default buffer-file-coding-system coding-system) | |
196 | (setq default-terminal-coding-system coding-system) | |
197 | (setq default-keyboard-coding-system coding-system) | |
198 | (setq default-process-coding-system (cons coding-system coding-system))) | |
199 | ||
0c3154d2 KH |
200 | (defun prefer-coding-system (coding-system) |
201 | "Add CODING-SYSTEM at the front of the priority list for automatic detection. | |
8efc03e1 | 202 | This also sets the follwing coding systems: |
0c3154d2 | 203 | o coding system of a newly created buffer |
8efc03e1 KH |
204 | o default coding system for subprocess I/O |
205 | This also sets the following values: | |
206 | o default value for the command `set-terminal-coding-system' | |
207 | o default value for the command `set-keyboard-coding-system'" | |
0c3154d2 KH |
208 | (interactive "zPrefer coding system: ") |
209 | (if (not (and coding-system (coding-system-p coding-system))) | |
210 | (error "Invalid coding system `%s'" coding-system)) | |
211 | (let ((coding-category (coding-system-category coding-system)) | |
8efc03e1 | 212 | (base (coding-system-base coding-system))) |
0c3154d2 KH |
213 | (if (not coding-category) |
214 | ;; CODING-SYSTEM is no-conversion or undecided. | |
215 | (error "Can't prefer the coding system `%s'" coding-system)) | |
8efc03e1 | 216 | (set coding-category (or base coding-system)) |
54b226f7 | 217 | (update-iso-coding-systems) |
0c3154d2 KH |
218 | (if (not (eq coding-category (car coding-category-list))) |
219 | ;; We must change the order. | |
220 | (setq coding-category-list | |
221 | (cons coding-category | |
222 | (delq coding-category coding-category-list)))) | |
8efc03e1 KH |
223 | (if (and base (interactive-p)) |
224 | (message "Highest priority is set to %s (base of %s)" | |
225 | base coding-system)) | |
226 | (set-default-coding-systems (or base coding-system)))) | |
0c3154d2 | 227 | |
b7079457 | 228 | (defun find-safe-coding-system-list-subset-p (list1 list2) |
54b226f7 KH |
229 | "Return non-nil if all elements in LIST1 are included in LIST2. |
230 | Comparison done with EQ." | |
231 | (catch 'tag | |
232 | (while list1 | |
233 | (or (memq (car list1) list2) | |
234 | (throw 'tag nil)) | |
235 | (setq list1 (cdr list1))) | |
236 | t)) | |
237 | ||
238 | (defun find-safe-coding-system (from to) | |
239 | "Return a list of proper coding systems to encode a text between FROM and TO. | |
240 | All coding systems in the list can safely encode any multibyte characters | |
241 | in the text. | |
242 | ||
243 | If the text contains no multibyte charcters, return a list of a single | |
244 | element `undecided'. | |
245 | ||
246 | Kludgy feature: if FROM is a string, the string is the target text, | |
247 | and TO is ignored." | |
248 | (let ((charset-list (if (stringp from) (find-charset-string from) | |
249 | (find-charset-region from to)))) | |
d5266ddf KH |
250 | (if (or (null charset-list) |
251 | (and (= (length charset-list) 1) | |
252 | (eq 'ascii (car charset-list)))) | |
54b226f7 KH |
253 | '(undecided) |
254 | (let ((l coding-system-list) | |
255 | (prefered-codings | |
256 | (mapcar (function | |
257 | (lambda (x) | |
258 | (get-charset-property x 'prefered-coding-system))) | |
259 | charset-list)) | |
260 | codings coding safe) | |
261 | (while l | |
262 | (setq coding (car l) l (cdr l)) | |
263 | (if (and (eq coding (coding-system-base coding)) | |
264 | (setq safe (coding-system-get coding 'safe-charsets)) | |
265 | (or (eq safe t) | |
b7079457 RS |
266 | (find-safe-coding-system-list-subset-p |
267 | charset-list safe))) | |
54b226f7 KH |
268 | ;; We put the higher priority to coding systems included |
269 | ;; in PREFERED-CODINGS, and within them, put the higher | |
270 | ;; priority to coding systems which support smaller | |
271 | ;; number of charsets. | |
272 | (let ((priority | |
273 | (logior (if (coding-system-get coding 'mime-charset) | |
274 | 256 0) | |
275 | (if (memq coding prefered-codings) 128 0) | |
276 | (if (> (coding-system-type coding) 0) 64 0) | |
277 | (if (consp safe) (- 64 (length safe)) 0)))) | |
278 | (setq codings (cons (cons priority coding) codings))))) | |
279 | (mapcar 'cdr | |
280 | (sort codings (function (lambda (x y) (> (car x) (car y)))))) | |
281 | )))) | |
282 | ||
283 | (defun select-safe-coding-system (from to &optional default-coding-system) | |
d5266ddf KH |
284 | "Ask a user to select a safe coding system from candidates. |
285 | The candidates of coding systems which can safely encode a text | |
286 | between FROM and TO are shown in a popup window. | |
54b226f7 KH |
287 | |
288 | Optional arg DEFAULT-CODING-SYSTEM specifies a coding system to be | |
289 | checked at first. If omitted, buffer-file-coding-system of the | |
290 | current buffer is used. | |
291 | ||
d5266ddf KH |
292 | If the text can be encoded safely by DEFAULT-CODING-SYSTEM, it is |
293 | returned without any user interaction. | |
54b226f7 KH |
294 | |
295 | Kludgy feature: if FROM is a string, the string is the target text, | |
296 | and TO is ignored." | |
297 | (or default-coding-system | |
298 | (setq default-coding-system buffer-file-coding-system)) | |
299 | (let ((safe-coding-systems (find-safe-coding-system from to))) | |
300 | (if (or (eq (car safe-coding-systems) 'undecided) | |
301 | (and default-coding-system | |
302 | (memq (coding-system-base default-coding-system) | |
303 | safe-coding-systems))) | |
304 | default-coding-system | |
305 | ||
306 | ;; Ask a user to select a proper coding system. | |
307 | (save-window-excursion | |
308 | ;; At first, show a helpful message. | |
309 | (with-output-to-temp-buffer "*Warning*" | |
310 | (save-excursion | |
311 | (set-buffer standard-output) | |
312 | (insert (format "\ | |
313 | The target text contains a multibyte character which can't be | |
314 | encoded safely by the coding system %s. | |
315 | ||
316 | Please select one from the following safe coding systems:\n" | |
317 | default-coding-system)) | |
318 | (let ((pos (point)) | |
319 | (fill-prefix " ")) | |
320 | (mapcar (function (lambda (x) (princ " ") (princ x))) | |
321 | safe-coding-systems) | |
322 | (fill-region-as-paragraph pos (point))))) | |
323 | ||
324 | ;; Read a coding system. | |
325 | (let* ((safe-names (mapcar (lambda (x) (list (symbol-name x))) | |
326 | safe-coding-systems)) | |
327 | (name (completing-read | |
328 | (format "Select coding system (default %s): " | |
329 | (car safe-coding-systems)) | |
330 | safe-names nil t nil nil (car (car safe-names))))) | |
1f776399 | 331 | (kill-buffer "*Warning*") |
54b226f7 KH |
332 | (intern name)))))) |
333 | ||
334 | (setq select-safe-coding-system-function 'select-safe-coding-system) | |
335 | ||
4ed46869 KH |
336 | \f |
337 | ;;; Language support staffs. | |
338 | ||
4ed46869 KH |
339 | (defvar language-info-alist nil |
340 | "Alist of language names vs the corresponding information of various kind. | |
341 | Each element looks like: | |
342 | (LANGUAGE-NAME . ((KEY . INFO) ...)) | |
343 | where LANGUAGE-NAME is a string, | |
344 | KEY is a symbol denoting the kind of information, | |
345 | INFO is any Lisp object which contains the actual information related | |
346 | to KEY.") | |
347 | ||
348 | (defun get-language-info (language-name key) | |
349 | "Return the information for LANGUAGE-NAME of the kind KEY. | |
4ed46869 | 350 | KEY is a symbol denoting the kind of required information." |
4ef06f75 KH |
351 | (if (symbolp language-name) |
352 | (setq language-name (symbol-name language-name))) | |
15b3e511 | 353 | (let ((lang-slot (assoc-ignore-case language-name language-info-alist))) |
4ed46869 KH |
354 | (if lang-slot |
355 | (cdr (assq key (cdr lang-slot)))))) | |
356 | ||
54b226f7 KH |
357 | (defun set-language-info (language-name key info |
358 | &optional describe-map setup-map) | |
4ed46869 | 359 | "Set for LANGUAGE-NAME the information INFO under KEY. |
4ed46869 | 360 | KEY is a symbol denoting the kind of information. |
54b226f7 KH |
361 | INFO is any Lisp object which contains the actual information specific |
362 | to LANGUAGE-NAME. | |
4ed46869 KH |
363 | |
364 | Currently, the following KEYs are used by Emacs: | |
281d03ec | 365 | |
54b226f7 KH |
366 | charset: list of charsets. |
367 | ||
368 | coding-system: list of coding systems. | |
281d03ec | 369 | |
54b226f7 | 370 | coding-priority: list of coding systems ordered by priority. |
281d03ec | 371 | |
4ed46869 | 372 | tutorial: a tutorial file name written in the language. |
281d03ec | 373 | |
4ed46869 | 374 | sample-text: one line short text containing characters of the language. |
281d03ec | 375 | |
15b3e511 | 376 | documentation: t or a string describing how Emacs supports the language. |
54b226f7 KH |
377 | If a string is specified, it is shown before any other information |
378 | of the language by the command `describe-language-environment'. | |
281d03ec | 379 | |
13e82c04 | 380 | setup-function: a function to call for setting up environment |
54b226f7 | 381 | convenient for a user of the language. |
13e82c04 | 382 | |
281d03ec | 383 | We will define more KEYs in the future. To avoid conflict, |
54b226f7 KH |
384 | if you want to use your own KEY values, make them start with `user-'. |
385 | ||
386 | Optional 4th and 5th args DESCRIBE-MAP and SETUP-MAP are keymaps to | |
387 | register LANGUAGE-NAME in the menu of `Mule'->`Describe Language | |
388 | Environment' and `Mule'->`Setup Language Environment' respectively." | |
4ef06f75 KH |
389 | (if (symbolp language-name) |
390 | (setq language-name (symbol-name language-name))) | |
4ed46869 KH |
391 | (let (lang-slot key-slot) |
392 | (setq lang-slot (assoc language-name language-info-alist)) | |
393 | (if (null lang-slot) ; If no slot for the language, add it. | |
394 | (setq lang-slot (list language-name) | |
395 | language-info-alist (cons lang-slot language-info-alist))) | |
396 | (setq key-slot (assq key lang-slot)) | |
397 | (if (null key-slot) ; If no slot for the key, add it. | |
398 | (progn | |
399 | (setq key-slot (list key)) | |
400 | (setcdr lang-slot (cons key-slot (cdr lang-slot))))) | |
4ed46869 | 401 | ;; Setup menu. |
48082651 | 402 | (cond ((eq key 'documentation) |
54b226f7 KH |
403 | (define-key-after describe-map (vector (intern language-name)) |
404 | (cons language-name 'describe-specified-language-support) t)) | |
ef8a8c8c | 405 | ((eq key 'setup-function) |
54b226f7 KH |
406 | (define-key-after setup-map (vector (intern language-name)) |
407 | (cons language-name 'setup-specified-language-environment) t))) | |
15b3e511 KH |
408 | |
409 | (setcdr key-slot info) | |
4ed46869 KH |
410 | )) |
411 | ||
54b226f7 | 412 | (defun set-language-info-alist (language-name alist &optional parents) |
4ed46869 KH |
413 | "Set for LANGUAGE-NAME the information in ALIST. |
414 | ALIST is an alist of KEY and INFO. See the documentation of | |
54b226f7 KH |
415 | `set-langauge-info' for the meanings of KEY and INFO. |
416 | ||
417 | Optional arg PARENTS is a list of parent language environments ordered | |
418 | from the highest to the lower. If it is nil, we make LANGUAGE-NAME | |
419 | the top level language environment." | |
4ef06f75 KH |
420 | (if (symbolp language-name) |
421 | (setq language-name (symbol-name language-name))) | |
54b226f7 KH |
422 | (let ((describe-map describe-language-environment-map) |
423 | (setup-map setup-language-environment-map)) | |
424 | (if parents | |
425 | (let ((l parents) | |
426 | map parent-symbol parent) | |
427 | (while l | |
428 | (if (symbolp (setq parent-symbol (car l))) | |
429 | (setq parent (symbol-name parent)) | |
430 | (setq parent parent-symbol parent-symbol (intern parent))) | |
431 | (setq map (lookup-key describe-map (vector parent-symbol))) | |
432 | (if (not map) | |
433 | (progn | |
434 | (setq map (intern (format "describe-%s-environment-map" | |
435 | (downcase parent)))) | |
436 | (define-prefix-command map) | |
437 | (define-key-after describe-map (vector parent-symbol) | |
438 | (cons parent map) t))) | |
439 | (setq describe-map (symbol-value map)) | |
440 | (setq map (lookup-key setup-map (vector parent-symbol))) | |
441 | (if (not map) | |
442 | (progn | |
443 | (setq map (intern (format "setup-%s-environment-map" | |
444 | (downcase parent)))) | |
445 | (define-prefix-command map) | |
446 | (define-key-after setup-map (vector parent-symbol) | |
447 | (cons parent map) t))) | |
448 | (setq setup-map (symbol-value map)) | |
449 | (setq l (cdr l))))) | |
450 | (while alist | |
451 | (set-language-info language-name (car (car alist)) (cdr (car alist)) | |
452 | describe-map setup-map) | |
453 | (setq alist (cdr alist))))) | |
4ed46869 | 454 | |
ae302641 | 455 | (defun read-language-name (key prompt &optional default) |
4ef06f75 | 456 | "Read language name which has information for KEY, prompting with PROMPT. |
ae302641 | 457 | DEFAULT is the default choice of language. |
fc0678af | 458 | This returns a language name as a string." |
4ed46869 KH |
459 | (let* ((completion-ignore-case t) |
460 | (name (completing-read prompt | |
461 | language-info-alist | |
462 | (function (lambda (elm) (assq key elm))) | |
ae302641 | 463 | t nil nil default))) |
13e82c04 KH |
464 | (if (and (> (length name) 0) |
465 | (get-language-info name key)) | |
466 | name))) | |
4ed46869 KH |
467 | \f |
468 | ;;; Multilingual input methods. | |
469 | ||
d0b9c3ab KH |
470 | (defconst leim-list-file-name "leim-list.el" |
471 | "Name of LEIM list file. | |
472 | This file contains a list of libraries of Emacs input methods (LEIM) | |
473 | in the format of Lisp expression for registering each input method. | |
474 | Emacs loads this file at startup time.") | |
475 | ||
476 | (defvar leim-list-header (format "\ | |
477 | ;;; %s -- list of LEIM (Library of Emacs Input Method) | |
478 | ;; | |
479 | ;; This file contains a list of LEIM (Library of Emacs Input Method) | |
480 | ;; in the same directory as this file. Loading this file registeres | |
481 | ;; the whole input methods in Emacs. | |
482 | ;; | |
d33d5fbe | 483 | ;; Each entry has the form: |
d0b9c3ab KH |
484 | ;; (register-input-method |
485 | ;; INPUT-METHOD LANGUAGE-NAME ACTIVATE-FUNC | |
486 | ;; TITLE DESCRIPTION | |
487 | ;; ARG ...) | |
488 | ;; See the function `register-input-method' for the meanings of arguments. | |
489 | ;; | |
490 | ;; If this directory is included in load-path, Emacs automatically | |
491 | ;; loads this file at startup time. | |
492 | ||
493 | " | |
494 | leim-list-file-name) | |
495 | "Header to be inserted in LEIM list file.") | |
496 | ||
e55e92ee | 497 | (defvar leim-list-entry-regexp "^(register-input-method" |
d0b9c3ab KH |
498 | "Regexp matching head of each entry in LEIM list file. |
499 | See also the variable `leim-list-header'") | |
500 | ||
501 | (defvar update-leim-list-functions | |
502 | '(quail-update-leim-list-file) | |
503 | "List of functions to call to update LEIM list file. | |
504 | Each function is called with one arg, LEIM directory name.") | |
505 | ||
a337fe7f RS |
506 | (defun update-leim-list-file (&rest dirs) |
507 | "Update LEIM list file in directories DIRS." | |
d0b9c3ab KH |
508 | (let ((functions update-leim-list-functions)) |
509 | (while functions | |
a337fe7f | 510 | (apply (car functions) dirs) |
d0b9c3ab KH |
511 | (setq functions (cdr functions))))) |
512 | ||
4ed46869 KH |
513 | (defvar current-input-method nil |
514 | "The current input method for multilingual text. | |
96db204a | 515 | If nil, that means no input method is activated now.") |
4ed46869 KH |
516 | (make-variable-buffer-local 'current-input-method) |
517 | (put 'current-input-method 'permanent-local t) | |
518 | ||
519 | (defvar current-input-method-title nil | |
d0b9c3ab | 520 | "Title string of the current input method shown in mode line.") |
4ed46869 KH |
521 | (make-variable-buffer-local 'current-input-method-title) |
522 | (put 'current-input-method-title 'permanent-local t) | |
523 | ||
b4fba33f KH |
524 | (defcustom default-input-method nil |
525 | "*Default input method for multilingual text. | |
526 | This is the input method activated automatically by the command | |
9b10b5a3 | 527 | `toggle-input-method' (\\[toggle-input-method])." |
b4fba33f KH |
528 | :group 'mule) |
529 | ||
723a427a KH |
530 | (defvar input-method-history nil |
531 | "History list for some commands that read input methods.") | |
532 | (make-variable-buffer-local 'input-method-history) | |
533 | (put 'input-method-history 'permanent-local t) | |
4ed46869 KH |
534 | |
535 | (defvar inactivate-current-input-method-function nil | |
536 | "Function to call for inactivating the current input method. | |
537 | Every input method should set this to an appropriate value when activated. | |
f17ccaee KH |
538 | This function is called with no argument. |
539 | ||
540 | This function should never change the value of `current-input-method'. | |
541 | It is set to nil by the function `inactivate-input-method'.") | |
4ed46869 KH |
542 | (make-variable-buffer-local 'inactivate-current-input-method-function) |
543 | (put 'inactivate-current-input-method-function 'permanent-local t) | |
544 | ||
545 | (defvar describe-current-input-method-function nil | |
546 | "Function to call for describing the current input method. | |
547 | This function is called with no argument.") | |
548 | (make-variable-buffer-local 'describe-current-input-method-function) | |
549 | (put 'describe-current-input-method-function 'permanent-local t) | |
550 | ||
d0b9c3ab KH |
551 | (defvar input-method-alist nil |
552 | "Alist of input method names vs the corresponding information to use it. | |
553 | Each element has the form: | |
554 | (INPUT-METHOD LANGUAGE-NAME ACTIVATE-FUNC TITLE DESCRIPTION ...) | |
555 | See the function `register-input-method' for the meanings of each elements.") | |
556 | ||
557 | (defun register-input-method (input-method language-name &rest args) | |
558 | "Register INPUT-METHOD as an input method for LANGUAGE-NAME. | |
4ef06f75 | 559 | INPUT-METHOD and LANGUAGE-NAME are symbols or strings. |
d0b9c3ab KH |
560 | The remaining arguments are: |
561 | ACTIVATE-FUNC, TITLE, DESCRIPTION, and ARG ... | |
562 | where, | |
563 | ACTIVATE-FUNC is a function to call for activating this method. | |
564 | TITLE is a string shown in mode-line while this method is active, | |
565 | DESCRIPTION is a string describing about this method, | |
566 | Arguments to ACTIVATE-FUNC are INPUT-METHOD and ARGs." | |
4ef06f75 KH |
567 | (if (symbolp language-name) |
568 | (setq language-name (symbol-name language-name))) | |
569 | (if (symbolp input-method) | |
570 | (setq input-method (symbol-name input-method))) | |
d0b9c3ab KH |
571 | (let ((info (cons language-name args)) |
572 | (slot (assoc input-method input-method-alist))) | |
573 | (if slot | |
574 | (setcdr slot info) | |
575 | (setq slot (cons input-method info)) | |
576 | (setq input-method-alist (cons slot input-method-alist))))) | |
577 | ||
4d5ac029 | 578 | (defun read-input-method-name (prompt &optional default inhibit-null) |
d0b9c3ab | 579 | "Read a name of input method from a minibuffer prompting with PROMPT. |
4d5ac029 RS |
580 | If DEFAULT is non-nil, use that as the default, |
581 | and substitute it into PROMPT at the first `%s'. | |
4ef06f75 KH |
582 | If INHIBIT-NULL is non-nil, null input signals an error. |
583 | ||
584 | The return value is a string." | |
4d5ac029 RS |
585 | (if default |
586 | (setq prompt (format prompt default))) | |
d0b9c3ab | 587 | (let* ((completion-ignore-case t) |
723a427a KH |
588 | ;; This binding is necessary because input-method-history is |
589 | ;; buffer local. | |
d0b9c3ab | 590 | (input-method (completing-read prompt input-method-alist |
87505a98 RS |
591 | nil t nil 'input-method-history |
592 | default))) | |
d0b9c3ab KH |
593 | (if (> (length input-method) 0) |
594 | input-method | |
595 | (if inhibit-null | |
43807b77 | 596 | (error "No valid input method is specified"))))) |
d0b9c3ab | 597 | |
d0b9c3ab | 598 | (defun activate-input-method (input-method) |
f17ccaee KH |
599 | "Turn INPUT-METHOD on. |
600 | If some input method is already on, turn it off at first." | |
4ef06f75 KH |
601 | (if (symbolp input-method) |
602 | (setq input-method (symbol-name input-method))) | |
723a427a KH |
603 | (if (and current-input-method |
604 | (not (string= current-input-method input-method))) | |
42395763 RS |
605 | (inactivate-input-method)) |
606 | (unless current-input-method | |
d0b9c3ab KH |
607 | (let ((slot (assoc input-method input-method-alist))) |
608 | (if (null slot) | |
723a427a | 609 | (error "Can't activate input method `%s'" input-method)) |
8efc03e1 KH |
610 | (let ((func (nth 2 slot))) |
611 | (if (functionp func) | |
612 | (apply (nth 2 slot) input-method (nthcdr 5 slot)) | |
613 | (if (and (consp func) (symbolp (car func)) (symbolp (cdr func))) | |
614 | (progn | |
615 | (require (cdr func)) | |
616 | (apply (car func) input-method (nthcdr 5 slot))) | |
617 | (error "Can't activate input method `%s'" input-method)))) | |
d0b9c3ab | 618 | (setq current-input-method input-method) |
723a427a KH |
619 | (setq current-input-method-title (nth 3 slot)) |
620 | (run-hooks 'input-method-activate-hook)))) | |
15b3e511 | 621 | |
15b3e511 | 622 | (defun inactivate-input-method () |
f17ccaee | 623 | "Turn off the current input method." |
723a427a KH |
624 | (when current-input-method |
625 | (if input-method-history | |
626 | (unless (string= current-input-method (car input-method-history)) | |
627 | (setq input-method-history | |
628 | (cons current-input-method | |
629 | (delete current-input-method input-method-history)))) | |
630 | (setq input-method-history (list current-input-method))) | |
631 | (unwind-protect | |
632 | (funcall inactivate-current-input-method-function) | |
15b3e511 | 633 | (unwind-protect |
723a427a KH |
634 | (run-hooks 'input-method-inactivate-hook) |
635 | (setq current-input-method nil | |
636 | current-input-method-title nil))))) | |
4ed46869 | 637 | |
8b784951 | 638 | (defun set-input-method (input-method) |
723a427a KH |
639 | "Select and turn on INPUT-METHOD. |
640 | This sets the default input method to what you specify, | |
641 | and turn it on for the current buffer." | |
d0b9c3ab | 642 | (interactive |
723a427a | 643 | (let* ((default (or (car input-method-history) default-input-method))) |
42395763 | 644 | (list (read-input-method-name |
87505a98 | 645 | (if default "Select input method (default %s): " "Select input method: ") |
42395763 | 646 | default t)))) |
d0b9c3ab | 647 | (activate-input-method input-method) |
42395763 | 648 | (setq default-input-method input-method)) |
4ed46869 KH |
649 | |
650 | (defun toggle-input-method (&optional arg) | |
15b3e511 | 651 | "Turn on or off a multilingual text input method for the current buffer. |
723a427a | 652 | |
d0b9c3ab | 653 | With arg, read an input method from minibuffer and turn it on. |
723a427a | 654 | |
15b3e511 | 655 | Without arg, if some input method is currently activated, turn it off, |
723a427a KH |
656 | else turn on an input method selected last time |
657 | or the default input method (see `default-input-method'). | |
658 | ||
659 | When there's no input method to turn on, turn on what read from minibuffer." | |
4ed46869 | 660 | (interactive "P") |
723a427a | 661 | (let* ((default (or (car input-method-history) default-input-method))) |
b4fba33f KH |
662 | (if (and current-input-method (not arg)) |
663 | (inactivate-input-method) | |
723a427a KH |
664 | (activate-input-method |
665 | (if (or arg (not default)) | |
666 | (read-input-method-name | |
667 | (if default "Input method (default %s): " "Input method: " ) | |
668 | default t) | |
669 | default)) | |
670 | (or default-input-method | |
671 | (setq default-input-method current-input-method))))) | |
d0b9c3ab KH |
672 | |
673 | (defun describe-input-method (input-method) | |
4ef06f75 | 674 | "Describe input method INPUT-METHOD." |
d0b9c3ab KH |
675 | (interactive |
676 | (list (read-input-method-name | |
677 | "Describe input method (default, current choice): "))) | |
78754934 | 678 | (if (and input-method (symbolp input-method)) |
4ef06f75 | 679 | (setq input-method (symbol-name input-method))) |
d0b9c3ab KH |
680 | (if (null input-method) |
681 | (describe-current-input-method) | |
682 | (with-output-to-temp-buffer "*Help*" | |
683 | (let ((elt (assoc input-method input-method-alist))) | |
684 | (princ (format "Input method: %s (`%s' in mode line) for %s\n %s\n" | |
685 | input-method (nth 3 elt) (nth 1 elt) (nth 4 elt))))))) | |
686 | ||
687 | (defun describe-current-input-method () | |
96db204a | 688 | "Describe the input method currently in use." |
4ed46869 KH |
689 | (if current-input-method |
690 | (if (and (symbolp describe-current-input-method-function) | |
691 | (fboundp describe-current-input-method-function)) | |
692 | (funcall describe-current-input-method-function) | |
693 | (message "No way to describe the current input method `%s'" | |
694 | (cdr current-input-method)) | |
695 | (ding)) | |
d0b9c3ab | 696 | (error "No input method is activated now"))) |
4ed46869 | 697 | |
d3459641 | 698 | (defun read-multilingual-string (prompt &optional initial-input input-method) |
4ed46869 KH |
699 | "Read a multilingual string from minibuffer, prompting with string PROMPT. |
700 | The input method selected last time is activated in minibuffer. | |
15b3e511 | 701 | If optional second arg INITIAL-INPUT is non-nil, insert it in the minibuffer |
d0b9c3ab KH |
702 | initially. |
703 | Optional 3rd argument INPUT-METHOD specifies the input method | |
4ef06f75 KH |
704 | to be activated instead of the one selected last time. It is a symbol |
705 | or a string." | |
88d559ec KH |
706 | (setq input-method |
707 | (or input-method | |
d3459641 | 708 | current-input-method |
88d559ec KH |
709 | default-input-method |
710 | (read-input-method-name "Input method: " nil t))) | |
3df60841 | 711 | (if (and input-method (symbolp input-method)) |
4ef06f75 | 712 | (setq input-method (symbol-name input-method))) |
d3459641 KH |
713 | (let ((previous-input-method current-input-method)) |
714 | (unwind-protect | |
715 | (progn | |
716 | (activate-input-method input-method) | |
717 | (read-string prompt initial-input nil nil t)) | |
718 | (if previous-input-method | |
719 | (activate-input-method previous-input-method) | |
720 | (inactivate-input-method))))) | |
4ed46869 KH |
721 | |
722 | ;; Variables to control behavior of input methods. All input methods | |
723 | ;; should react to these variables. | |
724 | ||
8efc03e1 KH |
725 | (defcustom input-method-verbose-flag 'default |
726 | "*A flag to control extra guidance given by input methods. | |
727 | The value should be nil, t, `complex-only', or `default'. | |
4ed46869 | 728 | |
cb29dfb6 | 729 | The extra guidance is done by showing list of available keys in echo |
8efc03e1 KH |
730 | area. When you use the input method in the minibuffer, the guidance |
731 | is shown at the bottom short window (split from the existing window). | |
c27c4ed8 | 732 | |
8efc03e1 KH |
733 | If the value is t, extra guidance is always given, if the value is |
734 | nil, extra guidance is always suppressed. | |
735 | ||
736 | If the value is `complex-only', only complex input methods such as | |
737 | `chinese-py' and `japanese' give extra guidance. | |
738 | ||
739 | If the value is `default', complex input methods always give extra | |
740 | guidance, but simple input methods give it only when you are not in | |
741 | the minibuffer. | |
742 | ||
743 | See also the variable `input-method-highlight-flag'." | |
744 | :type '(choice (const t) (const nil) (const complex-only) (const default)) | |
42395763 RS |
745 | :group 'mule) |
746 | ||
747 | (defcustom input-method-highlight-flag t | |
748 | "*If this flag is non-nil, input methods highlight partially-entered text. | |
749 | For instance, while you are in the middle of a Quail input method sequence, | |
750 | the text inserted so far is temporarily underlined. | |
8efc03e1 KH |
751 | The underlining goes away when you finish or abort the input method sequence. |
752 | See also the variable `input-method-verbose-flag'." | |
42395763 RS |
753 | :type 'boolean |
754 | :group 'mule) | |
4ed46869 KH |
755 | |
756 | (defvar input-method-activate-hook nil | |
f17ccaee KH |
757 | "Normal hook run just after an input method is activated. |
758 | ||
759 | The variable `current-input-method' keeps the input method name | |
760 | just activated.") | |
4ed46869 KH |
761 | |
762 | (defvar input-method-inactivate-hook nil | |
f17ccaee KH |
763 | "Normal hook run just after an input method is inactivated. |
764 | ||
765 | The variable `current-input-method' still keeps the input method name | |
4d0e6a11 | 766 | just inactivated.") |
4ed46869 KH |
767 | |
768 | (defvar input-method-after-insert-chunk-hook nil | |
769 | "Normal hook run just after an input method insert some chunk of text.") | |
770 | ||
723a427a KH |
771 | (defvar input-method-exit-on-invalid-key nil |
772 | "This flag controls the behaviour of an input method on invalid key input. | |
773 | Usually, when a user types a key which doesn't start any character | |
774 | handled by the input method, the key is handled by turning off the | |
775 | input method temporalily. After the key is handled, the input method is | |
776 | back on. | |
777 | But, if this flag is non-nil, the input method is never back on.") | |
778 | ||
4ed46869 | 779 | \f |
8efc03e1 KH |
780 | (defvar set-language-environment-hook nil |
781 | "Normal hook run after some language environment is set. | |
782 | ||
783 | When you set some hook function here, that effect usually should not | |
784 | be inherited to another language environment. So, you had better set | |
785 | another function in `exit-language-environment-hook' (which see) to | |
786 | cancel the effect.") | |
787 | ||
788 | (defvar exit-language-environment-hook nil | |
789 | "Normal hook run after exiting from some language environment. | |
790 | When this hook is run, the variable `current-language-environment' | |
791 | is still bound to the language environment being exited. | |
792 | ||
793 | This hook is mainly used for cancelling the effect of | |
794 | `set-language-environment-hook' (which-see).") | |
795 | ||
15b3e511 | 796 | (defun setup-specified-language-environment () |
f850d782 | 797 | "Set up multi-lingual environment convenient for the specified language." |
15b3e511 | 798 | (interactive) |
f850d782 | 799 | (let (language-name) |
15b3e511 KH |
800 | (if (and (symbolp last-command-event) |
801 | (or (not (eq last-command-event 'Default)) | |
802 | (setq last-command-event 'English)) | |
f850d782 RS |
803 | (setq language-name (symbol-name last-command-event))) |
804 | (set-language-environment language-name) | |
15b3e511 | 805 | (error "Bogus calling sequence")))) |
4ed46869 | 806 | |
f850d782 RS |
807 | (defvar current-language-environment "English" |
808 | "The last language environment specified with `set-language-environment'.") | |
809 | ||
166246f7 | 810 | (defun set-language-environment (language-name) |
6c05d680 RS |
811 | "Set up multi-lingual environment for using LANGUAGE-NAME. |
812 | This sets the coding system priority and the default input method | |
813 | and sometimes other things." | |
8efc03e1 KH |
814 | (interactive (list (read-language-name |
815 | 'setup-function | |
816 | "Set language environment (default, English): "))) | |
4ef06f75 KH |
817 | (if language-name |
818 | (if (symbolp language-name) | |
819 | (setq language-name (symbol-name language-name))) | |
820 | (setq language-name "English")) | |
b4fba33f | 821 | (if (null (get-language-info language-name 'setup-function)) |
f850d782 | 822 | (error "Language environment not defined: %S" language-name)) |
8efc03e1 KH |
823 | (if current-language-environment |
824 | (let ((func (get-language-info current-language-environment | |
825 | 'exit-function))) | |
e63645c2 KH |
826 | (run-hooks 'exit-language-environment-hook) |
827 | (if (fboundp func) (funcall func)))) | |
f850d782 | 828 | (setq current-language-environment language-name) |
8efc03e1 KH |
829 | (funcall (get-language-info language-name 'setup-function)) |
830 | (run-hooks 'set-language-environment-hook) | |
f850d782 | 831 | (force-mode-line-update t)) |
4ed46869 | 832 | |
54b226f7 KH |
833 | (defun set-language-environment-coding-systems (language-name) |
834 | "Do various coding system setups for language environment LANGUAGE-NAME." | |
835 | (let* ((priority (get-language-info language-name 'coding-priority)) | |
836 | (default-coding (car priority))) | |
837 | (if priority | |
838 | (let ((categories (mapcar 'coding-system-category priority))) | |
839 | (set-default-coding-systems default-coding) | |
840 | (set-coding-priority categories) | |
841 | (while priority | |
842 | (set (car categories) (car priority)) | |
843 | (setq priority (cdr priority) categories (cdr categories))) | |
844 | (update-iso-coding-systems))))) | |
845 | ||
4ed46869 KH |
846 | ;; Print all arguments with `princ', then print "\n". |
847 | (defsubst princ-list (&rest args) | |
848 | (while args (princ (car args)) (setq args (cdr args))) | |
849 | (princ "\n")) | |
850 | ||
48082651 | 851 | ;; Print a language specific information such as input methods, |
13e82c04 | 852 | ;; charsets, and coding systems. This function is intended to be |
48082651 | 853 | ;; called from the menu: |
281d03ec | 854 | ;; [menu-bar mule describe-language-environment LANGUAGE] |
48082651 KH |
855 | ;; and should not run it by `M-x describe-current-input-method-function'. |
856 | (defun describe-specified-language-support () | |
96db204a | 857 | "Describe how Emacs supports the specified language environment." |
48082651 | 858 | (interactive) |
281d03ec | 859 | (let (language-name) |
48082651 | 860 | (if (not (and (symbolp last-command-event) |
281d03ec | 861 | (setq language-name (symbol-name last-command-event)))) |
48082651 | 862 | (error "Bogus calling sequence")) |
281d03ec RS |
863 | (describe-language-environment language-name))) |
864 | ||
865 | (defun describe-language-environment (language-name) | |
866 | "Describe how Emacs supports language environment LANGUAGE-NAME." | |
78754934 KH |
867 | (interactive |
868 | (list (read-language-name | |
869 | 'documentation | |
8adfa8be | 870 | "Describe language environment (default, current choice): "))) |
f850d782 RS |
871 | (if (null language-name) |
872 | (setq language-name current-language-environment)) | |
281d03ec RS |
873 | (if (or (null language-name) |
874 | (null (get-language-info language-name 'documentation))) | |
875 | (error "No documentation for the specified language")) | |
4ef06f75 KH |
876 | (if (symbolp language-name) |
877 | (setq language-name (symbol-name language-name))) | |
281d03ec | 878 | (let ((doc (get-language-info language-name 'documentation))) |
48082651 | 879 | (with-output-to-temp-buffer "*Help*" |
13e82c04 | 880 | (if (stringp doc) |
d0b9c3ab KH |
881 | (progn |
882 | (princ-list doc) | |
883 | (terpri))) | |
15b3e511 KH |
884 | (let ((str (get-language-info language-name 'sample-text))) |
885 | (if (stringp str) | |
886 | (progn | |
281d03ec | 887 | (princ "Sample text:\n") |
d0b9c3ab KH |
888 | (princ-list " " str) |
889 | (terpri)))) | |
281d03ec | 890 | (princ "Input methods:\n") |
d0b9c3ab | 891 | (let ((l input-method-alist)) |
15b3e511 | 892 | (while l |
d0b9c3ab KH |
893 | (if (string= language-name (nth 1 (car l))) |
894 | (princ-list " " (car (car l)) | |
895 | (format " (`%s' in mode line)" (nth 3 (car l))))) | |
15b3e511 | 896 | (setq l (cdr l)))) |
281d03ec RS |
897 | (terpri) |
898 | (princ "Character sets:\n") | |
15b3e511 KH |
899 | (let ((l (get-language-info language-name 'charset))) |
900 | (if (null l) | |
901 | (princ-list " nothing specific to " language-name) | |
902 | (while l | |
903 | (princ-list " " (car l) ": " | |
904 | (charset-description (car l))) | |
905 | (setq l (cdr l))))) | |
281d03ec RS |
906 | (terpri) |
907 | (princ "Coding systems:\n") | |
15b3e511 KH |
908 | (let ((l (get-language-info language-name 'coding-system))) |
909 | (if (null l) | |
910 | (princ-list " nothing specific to " language-name) | |
48082651 | 911 | (while l |
281d03ec RS |
912 | (princ (format " %s (`%c' in mode line):\n\t%s\n" |
913 | (car l) | |
914 | (coding-system-mnemonic (car l)) | |
a904b20b | 915 | (coding-system-doc-string (car l)))) |
8efc03e1 KH |
916 | (let ((aliases (coding-system-get (car l) 'alias-coding-systems))) |
917 | (when aliases | |
918 | (princ "\t") | |
919 | (princ (cons 'alias: (cdr aliases))) | |
920 | (terpri))) | |
15b3e511 | 921 | (setq l (cdr l)))))))) |
4ed46869 KH |
922 | \f |
923 | ;;; Charset property | |
924 | ||
925 | (defsubst get-charset-property (charset propname) | |
926 | "Return the value of CHARSET's PROPNAME property. | |
927 | This is the last value stored with | |
96db204a | 928 | (put-charset-property CHARSET PROPNAME VALUE)." |
4ed46869 KH |
929 | (plist-get (charset-plist charset) propname)) |
930 | ||
931 | (defsubst put-charset-property (charset propname value) | |
932 | "Store CHARSETS's PROPNAME property with value VALUE. | |
933 | It can be retrieved with `(get-charset-property CHARSET PROPNAME)'." | |
934 | (set-charset-plist charset | |
935 | (plist-put (charset-plist charset) propname value))) | |
936 | ||
937 | ;;; Character code property | |
938 | (put 'char-code-property-table 'char-table-extra-slots 0) | |
939 | ||
940 | (defvar char-code-property-table | |
941 | (make-char-table 'char-code-property-table) | |
942 | "Char-table containing a property list of each character code. | |
943 | ||
944 | See also the documentation of `get-char-code-property' and | |
96db204a | 945 | `put-char-code-property'.") |
4ed46869 KH |
946 | |
947 | (defun get-char-code-property (char propname) | |
948 | "Return the value of CHAR's PROPNAME property in `char-code-property-table'." | |
949 | (let ((plist (aref char-code-property-table char))) | |
950 | (if (listp plist) | |
951 | (car (cdr (memq propname plist)))))) | |
952 | ||
953 | (defun put-char-code-property (char propname value) | |
954 | "Store CHAR's PROPNAME property with VALUE in `char-code-property-table'. | |
955 | It can be retrieved with `(get-char-code-property CHAR PROPNAME)'." | |
956 | (let ((plist (aref char-code-property-table char))) | |
957 | (if plist | |
958 | (let ((slot (memq propname plist))) | |
959 | (if slot | |
960 | (setcar (cdr slot) value) | |
961 | (nconc plist (list propname value)))) | |
962 | (aset char-code-property-table char (list propname value))))) | |
963 | ||
964 | ;;; mule-cmds.el ends here |