Mercurial > hg > xemacs-beta
annotate lisp/mule/mule-cmds.el @ 5940:c608d4b0b75e cygwin64 tip
rescue lost branch from 64bit.backup
| author | Henry Thompson <ht@markup.co.uk> |
|---|---|
| date | Thu, 16 Dec 2021 18:48:58 +0000 |
| parents | d489e88450aa |
| children |
| rev | line source |
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| 502 | 1 ;;; mule-cmds.el --- Commands for multilingual environment -*- coding: iso-2022-7bit; -*- |
| 428 | 2 |
| 3 ;; Copyright (C) 1995,1999 Electrotechnical Laboratory, JAPAN. | |
| 4 ;; Licensed to the Free Software Foundation. | |
| 5 ;; Copyright (C) 1997 MORIOKA Tomohiko | |
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6 ;; Copyright (C) 2000, 2001, 2002, 2003, 2010 Ben Wing. |
| 428 | 7 |
| 8 ;; Keywords: mule, multilingual | |
| 9 | |
| 10 ;; This file is part of XEmacs. | |
| 11 | |
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12 ;; XEmacs is free software: you can redistribute it and/or modify it |
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13 ;; under the terms of the GNU General Public License as published by the |
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14 ;; Free Software Foundation, either version 3 of the License, or (at your |
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15 ;; option) any later version. |
| 428 | 16 |
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17 ;; XEmacs is distributed in the hope that it will be useful, but WITHOUT |
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18 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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19 ;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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20 ;; for more details. |
| 428 | 21 |
| 22 ;; You should have received a copy of the GNU General Public License | |
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23 ;; along with XEmacs. If not, see <http://www.gnu.org/licenses/>. |
| 428 | 24 |
| 444 | 25 ;; Note: Some of the code here is now in code-cmds.el |
| 26 | |
| 428 | 27 ;;; Code: |
| 28 | |
| 29 ;;; MULE related key bindings and menus. | |
| 30 | |
| 444 | 31 ;; Preserve the old name |
| 32 (defvaralias 'mule-keymap 'coding-keymap) | |
| 33 | |
| 428 | 34 (define-key mule-keymap "x" 'set-selection-coding-system) |
| 35 (define-key mule-keymap "X" 'set-next-selection-coding-system) | |
| 36 (define-key mule-keymap "\C-\\" 'set-input-method) | |
| 37 ;;(define-key mule-keymap "c" 'list-coding-system-briefly) ; XEmacs | |
| 38 (define-key mule-keymap "C" 'describe-coding-system) ; XEmacs | |
| 39 (define-key mule-keymap "r" 'toggle-display-direction) ; XEmacs | |
| 40 (define-key mule-keymap "l" 'set-language-environment) | |
| 41 | |
| 42 (define-key help-map "L" 'describe-language-environment) | |
| 43 (define-key help-map "\C-\\" 'describe-input-method) | |
| 44 (define-key help-map "I" 'describe-input-method) | |
| 45 (define-key help-map "h" 'view-hello-file) | |
| 46 | |
| 47 ;; Menu for XEmacs were moved to menubar-items.el. | |
| 48 | |
| 49 | |
| 50 ;; This should be a single character key binding because users use it | |
| 51 ;; very frequently while editing multilingual text. Now we can use | |
| 52 ;; only two such keys: "\C-\\" and "\C-^", but the latter is not | |
| 53 ;; convenient because it requires shifting on most keyboards. An | |
| 54 ;; alternative is "\C-\]" which is now bound to `abort-recursive-edit' | |
| 55 ;; but it won't be used that frequently. | |
| 56 (define-key global-map "\C-\\" 'toggle-input-method) | |
| 57 | |
| 771 | 58 ;; Original mapping will be altered by set-keyboard-coding-system. |
| 59 (define-key global-map [(meta \#)] 'ispell-word) ;originally "$" | |
| 60 ;; (define-key global-map [(meta {)] 'insert-parentheses) ;originally "(" | |
| 61 | |
| 428 | 62 ;;; This is no good because people often type Shift-SPC |
| 63 ;;; meaning to type SPC. -- rms. | |
| 64 ;;; ;; Here's an alternative key binding for X users (Shift-SPACE). | |
| 771 | 65 ;;; (define-key global-map '(shift space) 'toggle-input-method) |
| 428 | 66 |
| 67 (defun view-hello-file () | |
| 68 "Display the HELLO file which list up many languages and characters." | |
| 69 (interactive) | |
| 70 ;; We have to decode the file in any environment. | |
| 71 (let ((coding-system-for-read 'iso-2022-7bit)) | |
| 72 (find-file-read-only (expand-file-name "HELLO" data-directory)))) | |
| 73 | |
| 3999 | 74 (defvar system-type-file-name-coding |
| 75 '((darwin . utf-8)) | |
| 76 "A map from values of `system-type' to invariant file name coding systems. | |
| 77 Used if a give system type does not vary in the coding system it uses for | |
| 78 file names; otherwise, `language-info-alist' is consulted for this | |
| 79 information. This affects the `file-name' coding system alias, but not the | |
| 80 `file-name-coding-system' variable, which in practice is mostly ignored. ") | |
| 81 | |
| 428 | 82 |
| 771 | 83 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 84 ;;; Language Support Functions ;;; | |
| 85 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 428 | 86 (defvar language-info-alist nil |
| 87 "Alist of language environment definitions. | |
| 88 Each element looks like: | |
| 771 | 89 (LANGUAGE-NAME . ((PROP . VALUE) ...)) |
| 428 | 90 where LANGUAGE-NAME is a string, the name of the language environment, |
| 771 | 91 PROP is a symbol denoting a property, and VALUE is the data associated |
| 92 with PROP. | |
| 93 See `set-language-info' for documentation on PROP and VALUE.") | |
| 428 | 94 |
| 771 | 95 (defun get-language-info (lang-env prop) |
| 96 "Return information listed under PROP for language environment LANG-ENV. | |
| 97 PROP is a symbol denoting a property. | |
| 98 For a list of useful values for PROP and their meanings, | |
| 99 see `set-language-info'." | |
| 428 | 100 (if (symbolp lang-env) |
| 101 (setq lang-env (symbol-name lang-env))) | |
| 102 (let ((lang-slot (assoc-ignore-case lang-env language-info-alist))) | |
| 103 (if lang-slot | |
| 771 | 104 (cdr (assq prop (cdr lang-slot)))))) |
| 428 | 105 |
| 771 | 106 (defun set-language-info (lang-env prop value) |
| 428 | 107 "Modify part of the definition of language environment LANG-ENV. |
| 771 | 108 Specifically, this stores the information VALUE under PROP |
| 428 | 109 in the definition of this language environment. |
| 771 | 110 PROP is a symbol denoting a property, and VALUE is the value of that property. |
| 111 | |
| 112 Meaningful values for PROP include | |
| 113 | |
| 114 documentation VALUE is documentation of what this language environment | |
| 115 is meant for, and how to use it. | |
| 116 | |
| 117 charset VALUE is a list of the character sets used by this | |
| 118 language environment. | |
| 119 | |
| 120 sample-text VALUE is one line of text, | |
| 121 written using those character sets, | |
| 122 appropriate for this language environment. | |
| 123 | |
| 124 setup-function VALUE is a function to call to switch to this | |
| 125 language environment. | |
| 126 | |
| 127 exit-function VALUE is a function to call to leave this | |
| 128 language environment. | |
| 129 | |
| 130 coding-system VALUE is a list of coding systems that are good | |
| 131 for saving text written in this language environment. | |
| 132 This list serves as suggestions to the user; | |
| 133 in effect, as a kind of documentation. | |
| 134 | |
| 135 coding-priority VALUE is a list of coding systems for this language | |
| 136 environment, in order of decreasing priority. | |
| 137 This is used to set up the coding system priority | |
| 138 list when you switch to this language environment. | |
| 139 | |
| 140 input-method VALUE is a default input method for this language | |
| 141 environment. | |
| 142 | |
| 143 features VALUE is a list of features requested in this | |
| 144 language environment. | |
| 145 | |
| 146 tutorial VALUE is a tutorial file name written in the language. | |
| 147 | |
| 148 locale VALUE is a list of locale expressions, which serve | |
| 149 two purposes: (1) Determining the language | |
| 150 environment from the current system locale at | |
| 151 startup, and (2) determining how to set the system | |
| 152 locale when the language environment is changed. | |
| 153 Each expression will be tried in turn, and should | |
| 154 be a string (for case (1), the string is matched | |
| 155 against the current locale using the regular | |
| 156 expression \"^STRING[^A-Za-z0-9]\"; for case (2), | |
| 157 the string is passed directly to | |
| 158 `set-current-locale' until a non-nil result is | |
| 159 returned), or a function of one argument. For | |
| 160 case (1), this argument will be a locale, and the | |
| 161 function should return t or nil to indicate | |
| 162 whether this locale matches the language | |
| 163 environment; for case (2), the argument will be | |
| 164 nil, and the function should call | |
| 165 `set-current-locale' itself and return the set | |
| 166 locale string if the locale was successfully set, | |
| 167 and nil otherwise. | |
| 428 | 168 |
| 771 | 169 NOTE: This property is *NOT* used under MS Windows; |
| 170 instead, the `mswindows-locale' property is used. | |
| 171 | |
| 172 cygwin-locale VALUE specifies a general Unix-style C library | |
| 173 locale that will be used to initialize the LANG | |
| 174 environment variable under MS Windows native, when the | |
| 175 system cannot test out the locales specified in the | |
| 176 `locale' property. This is so that Cygwin programs | |
| 177 can be run from an MS Windows native XEmacs. If not | |
| 178 specified, the last entry in `locale' will be used. | |
| 179 | |
| 180 native-coding-system VALUE is a single coding-system expression, or a | |
| 181 list of such expressions. These expressions are | |
| 182 used to compute the operating system's native | |
| 183 coding system, i.e. the coding system to be used | |
| 184 as the alias for `native' and `file-name'. This | |
| 185 specifies the coding system used for text | |
| 186 exchanged with the operating system, such as file | |
| 187 names, environment variables, subprocess | |
| 188 arguments, etc. Each expression should be either | |
| 189 a symbol naming a coding system or a function | |
| 190 (anything that is `functionp') of one argument, | |
| 191 which is passed the current locale corresponding | |
| 192 to this language environment and should return a | |
| 193 coding system or nil. Each expression is tried in | |
| 194 turn until a coding system is obtained. If there | |
| 195 is no non-nil result, or no value is specified for | |
| 196 this property, the first coding system listed | |
| 197 under the `coding-system' property is used. | |
| 198 | |
| 199 NOTE: This is *NOT* used under MS Windows. | |
| 200 Instead, `mswindows-multibyte-system-default' | |
| 201 is always used, since the system default code | |
| 202 page is what the Win32 API routines make use | |
| 203 of, and this cannot be changed. (We get around | |
| 204 this by using the Unicode versions whenever | |
| 205 possible -- i.e. on Windows NT/2000, and on | |
| 206 Windows 9x with the few API's that support | |
| 207 Unicode.) | |
| 208 | |
| 209 mswindows-locale VALUE is an element of the form MSWINDOWS-LOCALE, or | |
| 210 a list of such elements. Each element is an MS | |
| 211 Windows locale, of the form that can be passed to | |
| 212 `mswindows-set-current-locale'. This property is used | |
| 213 both to determine the current language environment at | |
| 214 startup (by matching MSWINDOWS-LOCALE against the | |
| 215 value returned by `mswindows-user-default-locale') and | |
| 216 to set the values of `set-current-locale' and | |
| 217 `mswindows-set-current-locale' when the current | |
| 218 language environment is changed. (The correct CLIB | |
| 219 locale can always be generated by passing in the | |
| 220 SUBLANG, with dashes in place of underscores, or the | |
| 221 LANG if there's no SUBLANG. The return value will be | |
| 222 the canonicalized locale, in proper CLIB form.) | |
| 223 | |
| 224 If there is no value for this property, the MS Windows | |
| 225 locale is assumed to have the same name as the | |
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226 language environment. |
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227 |
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228 invalid-sequence-coding-system |
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229 VALUE is a fixed-width 8-bit coding system used to |
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230 display Unicode error sequences (using a face to make |
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231 it clear that the data is invalid). In Western Europe |
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232 and the Americas this is normally windows-1252; in |
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233 Russia and the former Soviet Union koi8-ru or |
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234 windows-1251 makes more sense." |
| 428 | 235 (if (symbolp lang-env) |
| 236 (setq lang-env (symbol-name lang-env))) | |
| 771 | 237 (let (lang-slot prop-slot) |
| 428 | 238 (setq lang-slot (assoc lang-env language-info-alist)) |
| 239 (if (null lang-slot) ; If no slot for the language, add it. | |
| 240 (setq lang-slot (list lang-env) | |
| 241 language-info-alist (cons lang-slot language-info-alist))) | |
| 771 | 242 (setq prop-slot (assq prop lang-slot)) |
| 243 (if (null prop-slot) ; If no slot for the prop, add it. | |
| 428 | 244 (progn |
| 771 | 245 (setq prop-slot (list prop)) |
| 246 (setcdr lang-slot (cons prop-slot (cdr lang-slot))))) | |
| 247 (setcdr prop-slot value))) | |
| 428 | 248 |
| 249 (defun set-language-info-alist (lang-env alist &optional parents) | |
| 250 "Store ALIST as the definition of language environment LANG-ENV. | |
| 771 | 251 ALIST is an alist of properties and values. See the documentation of |
| 252 `set-language-info' for the allowed properties." | |
| 428 | 253 (if (symbolp lang-env) |
| 254 (setq lang-env (symbol-name lang-env))) | |
| 771 | 255 ;; FSF has 30 lines of unbelievably ugly code to set up the menus |
| 256 ;; appropriately. We just use a filter. | |
| 257 (while alist | |
| 258 (set-language-info lang-env (car (car alist)) (cdr (car alist))) | |
| 3707 | 259 (setq alist (cdr alist))) |
| 260 lang-env) | |
| 428 | 261 |
| 262 (defun read-language-name (key prompt &optional default) | |
| 263 "Read a language environment name which has information for KEY. | |
| 264 If KEY is nil, read any language environment. | |
| 265 Prompt with PROMPT. DEFAULT is the default choice of language environment. | |
| 266 This returns a language environment name as a string." | |
| 267 (let* ((completion-ignore-case t) | |
| 268 (name (completing-read prompt | |
| 269 language-info-alist | |
| 270 (and key | |
| 271 (function (lambda (elm) (assq key elm)))) | |
| 272 t nil nil default))) | |
| 273 (if (and (> (length name) 0) | |
| 274 (or (not key) | |
| 275 (get-language-info name key))) | |
| 276 name))) | |
| 277 | |
| 278 ;;; Multilingual input methods. | |
| 279 | |
| 280 (defconst leim-list-file-name "leim-list.el" | |
| 281 "Name of LEIM list file. | |
| 282 This file contains a list of libraries of Emacs input methods (LEIM) | |
| 283 in the format of Lisp expression for registering each input method. | |
| 284 Emacs loads this file at startup time.") | |
| 285 | |
| 286 (defvar leim-list-header (format | |
| 287 ";;; %s -- list of LEIM (Library of Emacs Input Method) | |
| 288 ;; | |
| 289 ;; This file contains a list of LEIM (Library of Emacs Input Method) | |
| 290 ;; in the same directory as this file. Loading this file registers | |
| 291 ;; the whole input methods in Emacs. | |
| 292 ;; | |
| 293 ;; Each entry has the form: | |
| 294 ;; (register-input-method | |
| 295 ;; INPUT-METHOD LANGUAGE-NAME ACTIVATE-FUNC | |
| 296 ;; TITLE DESCRIPTION | |
| 297 ;; ARG ...) | |
| 298 ;; See the function `register-input-method' for the meanings of arguments. | |
| 299 ;; | |
| 300 ;; If this directory is included in load-path, Emacs automatically | |
| 301 ;; loads this file at startup time. | |
| 302 | |
| 303 " | |
| 304 leim-list-file-name) | |
| 305 "Header to be inserted in LEIM list file.") | |
| 306 | |
| 307 (defvar leim-list-entry-regexp "^(register-input-method" | |
| 308 "Regexp matching head of each entry in LEIM list file. | |
| 309 See also the variable `leim-list-header'") | |
| 310 | |
| 311 (defvar update-leim-list-functions | |
| 312 '(quail-update-leim-list-file) | |
| 313 "List of functions to call to update LEIM list file. | |
| 314 Each function is called with one arg, LEIM directory name.") | |
| 315 | |
| 316 (defun update-leim-list-file (&rest dirs) | |
| 317 "Update LEIM list file in directories DIRS." | |
| 318 (let ((functions update-leim-list-functions)) | |
| 319 (while functions | |
| 320 (apply (car functions) dirs) | |
| 321 (setq functions (cdr functions))))) | |
| 322 | |
| 323 (defvar current-input-method nil | |
| 324 "The current input method for multilingual text. | |
| 325 If nil, that means no input method is activated now.") | |
| 326 (make-variable-buffer-local 'current-input-method) | |
| 327 (put 'current-input-method 'permanent-local t) | |
| 328 | |
| 329 (defvar current-input-method-title nil | |
| 330 "Title string of the current input method shown in mode line.") | |
| 331 (make-variable-buffer-local 'current-input-method-title) | |
| 332 (put 'current-input-method-title 'permanent-local t) | |
| 333 | |
| 334 (defcustom default-input-method nil | |
| 335 "*Default input method for multilingual text (a string). | |
| 336 This is the input method activated automatically by the command | |
| 337 `toggle-input-method' (\\[toggle-input-method])." | |
| 338 :group 'mule | |
| 339 :type '(choice (const nil) string)) | |
| 340 | |
| 341 (put 'input-method-function 'permanent-local t) | |
| 342 | |
| 343 (defvar input-method-history nil | |
| 344 "History list for some commands that read input methods.") | |
| 345 (make-variable-buffer-local 'input-method-history) | |
| 346 (put 'input-method-history 'permanent-local t) | |
| 347 | |
| 348 (defvar inactivate-current-input-method-function nil | |
| 349 "Function to call for inactivating the current input method. | |
| 350 Every input method should set this to an appropriate value when activated. | |
| 351 This function is called with no argument. | |
| 352 | |
| 353 This function should never change the value of `current-input-method'. | |
| 354 It is set to nil by the function `inactivate-input-method'.") | |
| 355 (make-variable-buffer-local 'inactivate-current-input-method-function) | |
| 356 (put 'inactivate-current-input-method-function 'permanent-local t) | |
| 357 | |
| 358 (defvar describe-current-input-method-function nil | |
| 359 "Function to call for describing the current input method. | |
| 360 This function is called with no argument.") | |
| 361 (make-variable-buffer-local 'describe-current-input-method-function) | |
| 362 (put 'describe-current-input-method-function 'permanent-local t) | |
| 363 | |
| 364 (defvar input-method-alist nil | |
| 2970 | 365 "Alist mapping input method names to information used by the LEIM API. |
| 366 Elements have the form (METHOD LANGUAGE ACTIVATOR TITLE DESCRIPTION ARGS...). | |
| 367 Use `register-input-method' to add input methods to the database. See its | |
| 368 documentation for the meanings of the elements.") | |
| 428 | 369 |
| 2970 | 370 (defun register-input-method (method language |
| 371 ;; #### shouldn't be optional, but need to | |
| 372 ;; audit callers | |
| 373 &optional activator title description | |
| 374 &rest args) | |
| 375 "Register METHOD as an input method for language environment LANGUAGE. | |
| 428 | 376 |
| 2970 | 377 METHOD and LANGUAGE may be symbols or strings. |
| 378 ACTIVATOR is the function called to activate this method. METHOD (the | |
| 379 invocation name) and ARGS are passed to the function on activation. | |
| 428 | 380 TITLE is a string to show in the mode line when this method is active. |
| 381 DESCRIPTION is a string describing this method and what it is good for. | |
| 2970 | 382 Optional ARGS, if any, are stored and passed as arguments to ACTIVATOR. |
| 428 | 383 |
| 2970 | 384 When registering a new Quail input method, the input method title should be |
| 385 the one given in the third parameter of `quail-define-package' (if the values | |
| 386 are different, the string specified in this function takes precedence). | |
| 428 | 387 |
| 2970 | 388 The information provided is registered in `input-method-alist'. The commands |
| 389 `describe-input-method' and `list-input-methods' use this database to show | |
| 390 information about input methods without loading them." | |
| 391 (if (symbolp language) | |
| 392 (setq language (symbol-name language))) | |
| 393 (if (symbolp method) | |
| 394 (setq method (symbol-name method))) | |
| 395 (let ((info (append (list language activator title description) args)) | |
| 396 (slot (assoc method input-method-alist))) | |
| 428 | 397 (if slot |
| 398 (setcdr slot info) | |
| 2970 | 399 (setq slot (cons method info)) |
| 428 | 400 (setq input-method-alist (cons slot input-method-alist))))) |
| 401 | |
| 402 (defun read-input-method-name (prompt &optional default inhibit-null) | |
| 403 "Read a name of input method from a minibuffer prompting with PROMPT. | |
| 404 If DEFAULT is non-nil, use that as the default, | |
| 405 and substitute it into PROMPT at the first `%s'. | |
| 406 If INHIBIT-NULL is non-nil, null input signals an error. | |
| 407 | |
| 408 The return value is a string." | |
| 409 (if default | |
| 410 (setq prompt (format prompt default))) | |
| 411 (let* ((completion-ignore-case t) | |
| 412 ;; This binding is necessary because input-method-history is | |
| 413 ;; buffer local. | |
| 414 (input-method (completing-read prompt input-method-alist | |
| 415 nil t nil 'input-method-history | |
| 416 default))) | |
| 417 (if (and input-method (symbolp input-method)) | |
| 418 (setq input-method (symbol-name input-method))) | |
| 419 (if (> (length input-method) 0) | |
| 420 input-method | |
| 421 (if inhibit-null | |
| 422 (error "No valid input method is specified"))))) | |
| 423 | |
| 424 (defun activate-input-method (input-method) | |
| 425 "Switch to input method INPUT-METHOD for the current buffer. | |
| 426 If some other input method is already active, turn it off first. | |
| 427 If INPUT-METHOD is nil, deactivate any current input method." | |
| 428 (if (and input-method (symbolp input-method)) | |
| 429 (setq input-method (symbol-name input-method))) | |
| 430 (if (and current-input-method | |
| 431 (not (string= current-input-method input-method))) | |
| 432 (inactivate-input-method)) | |
| 433 (unless (or current-input-method (null input-method)) | |
| 434 (let ((slot (assoc input-method input-method-alist))) | |
| 435 (if (null slot) | |
| 436 (error "Can't activate input method `%s'" input-method)) | |
| 437 (let ((func (nth 2 slot))) | |
| 438 (if (functionp func) | |
| 439 (apply (nth 2 slot) input-method (nthcdr 5 slot)) | |
| 440 (if (and (consp func) (symbolp (car func)) (symbolp (cdr func))) | |
| 441 (progn | |
| 442 (require (cdr func)) | |
| 443 (apply (car func) input-method (nthcdr 5 slot))) | |
| 444 (error "Can't activate input method `%s'" input-method)))) | |
| 445 (setq current-input-method input-method) | |
| 446 (setq current-input-method-title (nth 3 slot)) | |
| 447 (unwind-protect | |
| 448 (run-hooks 'input-method-activate-hook) | |
| 449 (force-mode-line-update))))) | |
| 450 | |
| 451 (defun inactivate-input-method () | |
| 452 "Turn off the current input method." | |
| 453 (when current-input-method | |
| 454 (if input-method-history | |
| 455 (unless (string= current-input-method (car input-method-history)) | |
| 456 (setq input-method-history | |
| 457 (cons current-input-method | |
| 458 (delete current-input-method input-method-history)))) | |
| 459 (setq input-method-history (list current-input-method))) | |
| 460 (unwind-protect | |
| 461 (funcall inactivate-current-input-method-function) | |
| 462 (unwind-protect | |
| 463 (run-hooks 'input-method-inactivate-hook) | |
| 464 (setq current-input-method nil | |
| 465 current-input-method-title nil) | |
| 466 (force-mode-line-update))))) | |
| 467 | |
| 468 (defun set-input-method (input-method) | |
| 469 "Select and activate input method INPUT-METHOD for the current buffer. | |
| 470 This also sets the default input method to the one you specify." | |
| 471 (interactive | |
| 472 (let* ((default (or (car input-method-history) default-input-method))) | |
| 473 (list (read-input-method-name | |
| 474 (if default "Select input method (default %s): " "Select input method: ") | |
| 475 default t)))) | |
| 476 (activate-input-method input-method) | |
| 477 (setq default-input-method input-method)) | |
| 478 | |
| 479 (defun toggle-input-method (&optional arg) | |
| 480 "Turn on or off a multilingual text input method for the current buffer. | |
| 481 | |
| 482 With no prefix argument, if an input method is currently activated, | |
| 483 turn it off. Otherwise, activate an input method -- the one most | |
| 484 recently used, or the one specified in `default-input-method', or | |
| 485 the one read from the minibuffer. | |
| 486 | |
| 487 With a prefix argument, read an input method from the minibuffer and | |
| 488 turn it on. | |
| 489 | |
| 490 The default is to use the most recent input method specified | |
| 491 \(not including the currently active input method, if any)." | |
| 492 (interactive "P") | |
| 493 (if (and current-input-method (not arg)) | |
| 494 (inactivate-input-method) | |
| 495 (let ((default (or (car input-method-history) default-input-method))) | |
| 496 (if (and arg default (equal current-input-method default) | |
| 497 (> (length input-method-history) 1)) | |
| 498 (setq default (nth 1 input-method-history))) | |
| 499 (activate-input-method | |
| 500 (if (or arg (not default)) | |
| 501 (progn | |
| 502 (read-input-method-name | |
| 503 (if default "Input method (default %s): " "Input method: " ) | |
| 504 default t)) | |
| 505 default)) | |
| 506 (or default-input-method | |
| 507 (setq default-input-method current-input-method))))) | |
| 508 | |
| 509 (defun describe-input-method (input-method) | |
| 510 "Describe input method INPUT-METHOD." | |
| 511 (interactive | |
| 512 (list (read-input-method-name | |
| 513 "Describe input method (default, current choice): "))) | |
| 514 (if (and input-method (symbolp input-method)) | |
| 515 (setq input-method (symbol-name input-method))) | |
| 516 (if (null input-method) | |
| 517 (describe-current-input-method) | |
| 518 (with-output-to-temp-buffer "*Help*" | |
| 519 (let ((elt (assoc input-method input-method-alist))) | |
| 520 (princ (format "Input method: %s (`%s' in mode line) for %s\n %s\n" | |
| 521 input-method (nth 3 elt) (nth 1 elt) (nth 4 elt))))))) | |
| 522 | |
| 523 (defun describe-current-input-method () | |
| 524 "Describe the input method currently in use." | |
| 525 (if current-input-method | |
| 526 (if (and (symbolp describe-current-input-method-function) | |
| 527 (fboundp describe-current-input-method-function)) | |
| 528 (funcall describe-current-input-method-function) | |
| 529 (message "No way to describe the current input method `%s'" | |
| 530 current-input-method) | |
| 531 (ding)) | |
| 532 (error "No input method is activated now"))) | |
| 533 | |
| 534 (defun read-multilingual-string (prompt &optional initial-input input-method) | |
| 535 "Read a multilingual string from minibuffer, prompting with string PROMPT. | |
| 536 The input method selected last time is activated in minibuffer. | |
| 537 If optional second arg INITIAL-INPUT is non-nil, insert it in the minibuffer | |
| 538 initially. | |
| 539 Optional 3rd argument INPUT-METHOD specifies the input method | |
| 540 to be activated instead of the one selected last time. It is a symbol | |
| 541 or a string." | |
| 542 (setq input-method | |
| 543 (or input-method | |
| 544 current-input-method | |
| 545 default-input-method | |
| 546 (read-input-method-name "Input method: " nil t))) | |
| 547 (if (and input-method (symbolp input-method)) | |
| 548 (setq input-method (symbol-name input-method))) | |
| 549 (let ((prev-input-method current-input-method)) | |
| 550 (unwind-protect | |
| 551 (progn | |
| 552 (activate-input-method input-method) | |
| 553 ;; FSF Emacs | |
| 554 ;; (read-string prompt initial-input nil nil t) | |
| 555 (read-string prompt initial-input nil)) | |
| 556 (activate-input-method prev-input-method)))) | |
| 557 | |
| 558 ;; Variables to control behavior of input methods. All input methods | |
| 559 ;; should react to these variables. | |
| 560 | |
| 561 (defcustom input-method-verbose-flag 'default | |
| 562 "*A flag to control extra guidance given by input methods. | |
| 563 The value should be nil, t, `complex-only', or `default'. | |
| 564 | |
| 565 The extra guidance is done by showing list of available keys in echo | |
| 566 area. When you use the input method in the minibuffer, the guidance | |
| 567 is shown at the bottom short window (split from the existing window). | |
| 568 | |
| 569 If the value is t, extra guidance is always given, if the value is | |
| 570 nil, extra guidance is always suppressed. | |
| 571 | |
| 572 If the value is `complex-only', only complex input methods such as | |
| 573 `chinese-py' and `japanese' give extra guidance. | |
| 574 | |
| 575 If the value is `default', complex input methods always give extra | |
| 576 guidance, but simple input methods give it only when you are not in | |
| 577 the minibuffer. | |
| 578 | |
| 579 See also the variable `input-method-highlight-flag'." | |
| 580 :type '(choice (const t) (const nil) (const complex-only) (const default)) | |
| 581 :group 'mule) | |
| 582 | |
| 583 (defcustom input-method-highlight-flag t | |
| 584 "*If this flag is non-nil, input methods highlight partially-entered text. | |
| 585 For instance, while you are in the middle of a Quail input method sequence, | |
| 586 the text inserted so far is temporarily underlined. | |
| 587 The underlining goes away when you finish or abort the input method sequence. | |
| 588 See also the variable `input-method-verbose-flag'." | |
| 589 :type 'boolean | |
| 590 :group 'mule) | |
| 591 | |
| 592 (defvar input-method-activate-hook nil | |
| 593 "Normal hook run just after an input method is activated. | |
| 594 | |
| 595 The variable `current-input-method' keeps the input method name | |
| 596 just activated.") | |
| 597 | |
| 598 (defvar input-method-inactivate-hook nil | |
| 599 "Normal hook run just after an input method is inactivated. | |
| 600 | |
| 601 The variable `current-input-method' still keeps the input method name | |
| 602 just inactivated.") | |
| 603 | |
| 604 (defvar input-method-after-insert-chunk-hook nil | |
| 605 "Normal hook run just after an input method insert some chunk of text.") | |
| 606 | |
| 607 (defvar input-method-exit-on-first-char nil | |
| 608 "This flag controls a timing when an input method returns. | |
| 609 Usually, the input method does not return while there's a possibility | |
| 610 that it may find a different translation if a user types another key. | |
| 611 But, it this flag is non-nil, the input method returns as soon as | |
| 612 the current key sequence gets long enough to have some valid translation.") | |
| 613 | |
| 614 (defvar input-method-use-echo-area nil | |
| 615 "This flag controls how an input method shows an intermediate key sequence. | |
| 616 Usually, the input method inserts the intermediate key sequence, | |
| 617 or candidate translations corresponding to the sequence, | |
| 618 at point in the current buffer. | |
| 619 But, if this flag is non-nil, it displays them in echo area instead.") | |
| 620 | |
| 621 (defvar input-method-exit-on-invalid-key nil | |
| 442 | 622 "This flag controls the behavior of an input method on invalid key input. |
| 428 | 623 Usually, when a user types a key which doesn't start any character |
| 624 handled by the input method, the key is handled by turning off the | |
| 625 input method temporarily. After that key, the input method is re-enabled. | |
| 626 But, if this flag is non-nil, the input method is never back on.") | |
| 627 | |
| 628 | |
| 629 (defvar set-language-environment-hook nil | |
| 630 "Normal hook run after some language environment is set. | |
| 631 | |
| 632 When you set some hook function here, that effect usually should not | |
| 633 be inherited to another language environment. So, you had better set | |
| 634 another function in `exit-language-environment-hook' (which see) to | |
| 635 cancel the effect.") | |
| 636 | |
| 637 (defvar exit-language-environment-hook nil | |
| 638 "Normal hook run after exiting from some language environment. | |
| 639 When this hook is run, the variable `current-language-environment' | |
| 640 is still bound to the language environment being exited. | |
| 641 | |
| 642 This hook is mainly used for canceling the effect of | |
| 643 `set-language-environment-hook' (which-see).") | |
| 644 | |
| 771 | 645 ;; bogus FSF function setup-specified-language-support. |
| 428 | 646 |
| 647 (defcustom current-language-environment "English" | |
| 648 "The last language environment specified with `set-language-environment'. | |
| 649 This variable should be set only with \\[customize], which is equivalent | |
| 650 to using the function `set-language-environment'." | |
| 651 :link '(custom-manual "(emacs)Language Environments") | |
| 652 :set (lambda (symbol value) (set-language-environment value)) | |
| 653 :get (lambda (x) | |
| 654 (or (car-safe (assoc-ignore-case | |
| 655 (if (symbolp current-language-environment) | |
| 656 (symbol-name current-language-environment) | |
| 657 current-language-environment) | |
| 658 language-info-alist)) | |
| 659 "English")) | |
| 660 :type (cons 'choice (mapcar (lambda (lang) | |
| 661 (list 'const (car lang))) | |
| 662 language-info-alist)) | |
| 663 :initialize 'custom-initialize-default | |
| 664 :group 'mule | |
| 665 :type 'string) | |
| 666 | |
| 667 (defun set-language-environment (language-name) | |
| 668 "Set up multi-lingual environment for using LANGUAGE-NAME. | |
| 771 | 669 This sets the coding system autodetection priority, the default buffer |
| 670 coding system, the default input method, the system locale, and other | |
| 671 relevant language properties. LANGUAGE-NAME should be a string, the | |
| 672 name of a language environment. For example, \"Latin-1\" specifies | |
| 673 the language environment for the major languages of Western Europe." | |
| 428 | 674 (interactive (list (read-language-name |
| 675 nil | |
| 676 "Set language environment (default, English): "))) | |
| 677 (if language-name | |
| 678 (if (symbolp language-name) | |
| 679 (setq language-name (symbol-name language-name))) | |
| 680 (setq language-name "English")) | |
| 681 (or (assoc-ignore-case language-name language-info-alist) | |
| 771 | 682 (error 'invalid-argument "Language environment not defined" |
| 683 language-name)) | |
| 428 | 684 (if current-language-environment |
| 685 (let ((func (get-language-info current-language-environment | |
| 686 'exit-function))) | |
| 687 (run-hooks 'exit-language-environment-hook) | |
| 4145 | 688 (if (functionp func) (funcall func)))) |
| 771 | 689 (setq current-language-environment language-name) |
| 428 | 690 (let ((default-eol-type (coding-system-eol-type |
| 691 default-buffer-file-coding-system))) | |
| 771 | 692 (reset-coding-categories-to-default) |
| 693 (set-locale-for-language-environment language-name) | |
| 694 (set-language-environment-coding-systems language-name default-eol-type)) | |
| 695 | |
| 696 (finish-set-language-environment language-name)) | |
| 428 | 697 |
| 771 | 698 (defun finish-set-language-environment (language-name) |
| 699 ;; Internal function. Only what's here is called at startup, once the | |
| 700 ;; first language environment is determined. The above stuff was already | |
| 701 ;; taken care of very early in the startup sequence, in a special | |
| 702 ;; fashion. | |
| 428 | 703 (let ((input-method (get-language-info language-name 'input-method))) |
| 704 (when input-method | |
| 705 (setq default-input-method input-method) | |
| 706 (if input-method-history | |
| 707 (setq input-method-history | |
| 708 (cons input-method | |
| 709 (delete input-method input-method-history)))))) | |
| 710 ;; (let ((nonascii (get-language-info language-name 'nonascii-translation)) | |
| 711 ;; (dos-table | |
| 712 ;; (if (eq window-system 'pc) | |
| 713 ;; (intern | |
| 714 ;; (concat "cp" dos-codepage "-nonascii-translation-table"))))) | |
| 715 ;; (cond | |
| 716 ;; ((char-table-p nonascii) | |
| 717 ;; (setq nonascii-translation-table nonascii)) | |
| 718 ;; ((and (eq window-system 'pc) (boundp dos-table)) | |
| 719 ;; ;; DOS terminals' default is to use a special non-ASCII translation | |
| 720 ;; ;; table as appropriate for the installed codepage. | |
| 721 ;; (setq nonascii-translation-table (symbol-value dos-table))) | |
| 722 ;; ((charsetp nonascii) | |
| 723 ;; (setq nonascii-insert-offset (- (make-char nonascii) 128))))) | |
| 724 | |
| 725 ;; (setq charset-origin-alist | |
| 726 ;; (get-language-info language-name 'charset-origin-alist)) | |
| 727 | |
| 728 ;; Unibyte setups if necessary. | |
| 729 ;; (unless default-enable-multibyte-characters | |
| 730 ;; ;; Syntax and case table. | |
| 731 ;; (let ((syntax (get-language-info language-name 'unibyte-syntax))) | |
| 732 ;; (if syntax | |
| 733 ;; (let ((set-case-syntax-set-multibyte nil)) | |
| 734 ;; (load syntax nil t)) | |
| 735 ;; ;; No information for syntax and case. Reset to the defaults. | |
| 736 ;; (let ((syntax-table (standard-syntax-table)) | |
| 737 ;; (case-table (standard-case-table)) | |
| 738 ;; (ch (if (eq window-system 'pc) 128 160))) | |
| 739 ;; (while (< ch 256) | |
| 740 ;; (modify-syntax-entry ch " " syntax-table) | |
| 741 ;; (aset case-table ch ch) | |
| 742 ;; (setq ch (1+ ch))) | |
| 743 ;; (set-char-table-extra-slot case-table 0 nil) | |
| 744 ;; (set-char-table-extra-slot case-table 1 nil) | |
| 745 ;; (set-char-table-extra-slot case-table 2 nil)) | |
| 746 ;; (set-standard-case-table (standard-case-table)) | |
| 747 ;; (let ((list (buffer-list))) | |
| 748 ;; (while list | |
| 749 ;; (with-current-buffer (car list) | |
| 750 ;; (set-case-table (standard-case-table))) | |
| 751 ;; (setq list (cdr list)))))) | |
| 752 ;; ;; Display table and coding system for terminal. | |
| 753 ;; (let ((coding (get-language-info language-name 'unibyte-display))) | |
| 754 ;; (if coding | |
| 755 ;; (standard-display-european-internal) | |
| 756 ;; (standard-display-default (if (eq window-system 'pc) 128 160) 255) | |
| 757 ;; (aset standard-display-table 146 nil)) | |
| 758 ;; (or (eq window-system 'pc) | |
| 759 ;; (set-terminal-coding-system coding)))) | |
| 760 | |
| 761 (let ((required-features (get-language-info language-name 'features))) | |
| 762 (while required-features | |
| 763 (require (car required-features)) | |
| 764 (setq required-features (cdr required-features)))) | |
| 765 (let ((func (get-language-info language-name 'setup-function))) | |
| 4145 | 766 (if (functionp func) |
| 428 | 767 (funcall func))) |
| 952 | 768 |
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769 (let ((invalid-sequence-coding-system |
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770 (get-language-info language-name 'invalid-sequence-coding-system)) |
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771 (disp-table (specifier-instance current-display-table)) |
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772 glyph string unicode-error-lookup first-char) |
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773 (when (consp invalid-sequence-coding-system) |
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774 (setq invalid-sequence-coding-system |
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775 (car invalid-sequence-coding-system))) |
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776 (map-char-table |
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777 #'(lambda (key entry) |
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778 (setq string (decode-coding-string (string entry) |
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779 invalid-sequence-coding-system)) |
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780 (when (eql 1 (length string)) |
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781 ;; Treat Unicode error sequence chars as the octets |
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782 ;; corresponding to those on disk: |
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783 (setq unicode-error-lookup |
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784 (get-char-table (aref string 0) |
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785 unicode-error-default-translation-table)) |
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786 (when unicode-error-lookup |
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787 (setq string (format "%c" unicode-error-lookup))) |
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788 ;; Treat control characters specially: |
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789 (setq first-char (aref string 0)) |
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790 (when (or (<= #x00 first-char #x1f) (<= #x80 first-char #x9f)) |
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791 (setq string (format "^%c" (+ ?@ (aref string 0)))))) |
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792 (setq glyph (make-glyph (vector 'string :data string))) |
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793 (set-glyph-face glyph 'unicode-invalid-sequence-warning-face) |
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794 (put-char-table key glyph disp-table) |
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795 nil) |
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796 unicode-error-default-translation-table)) |
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797 |
| 952 | 798 ;; Fit the charsets preferences in unicode conversions for the |
| 799 ;; language environment. | |
| 1285 | 800 (set-language-unicode-precedence-list |
| 801 (get-language-info language-name 'charset)) | |
| 952 | 802 |
| 428 | 803 (run-hooks 'set-language-environment-hook) |
| 804 (force-mode-line-update t)) | |
| 805 | |
| 806 ;; (defun standard-display-european-internal () | |
| 807 ;; ;; Actually set up direct output of non-ASCII characters. | |
| 808 ;; (standard-display-8bit (if (eq window-system 'pc) 128 160) 255) | |
| 809 ;; ;; Unibyte Emacs on MS-DOS wants to display all 8-bit characters with | |
| 810 ;; ;; the native font, and codes 160 and 146 stand for something very | |
| 811 ;; ;; different there. | |
| 812 ;; (or (and (eq window-system 'pc) (not default-enable-multibyte-characters)) | |
| 813 ;; (progn | |
| 814 ;; ;; Make non-line-break space display as a plain space. | |
| 815 ;; ;; Most X fonts do the wrong thing for code 160. | |
| 816 ;; (aset standard-display-table 160 [32]) | |
| 817 ;; ;; Most Windows programs send out apostrophe's as \222. Most X fonts | |
| 818 ;; ;; don't contain a character at that position. Map it to the ASCII | |
| 819 ;; ;; apostrophe. | |
| 820 ;; (aset standard-display-table 146 [39])))) | |
| 821 | |
| 771 | 822 ;; bogus FSF function describe-specified-language-support. |
| 428 | 823 |
| 824 (defun describe-language-environment (language-name) | |
| 825 "Describe how Emacs supports language environment LANGUAGE-NAME." | |
| 826 (interactive | |
| 827 (list (read-language-name | |
| 828 'documentation | |
| 829 "Describe language environment (default, current choice): "))) | |
| 830 (if (null language-name) | |
| 831 (setq language-name current-language-environment)) | |
| 832 (if (or (null language-name) | |
| 833 (null (get-language-info language-name 'documentation))) | |
| 834 (error "No documentation for the specified language")) | |
| 835 (if (symbolp language-name) | |
| 836 (setq language-name (symbol-name language-name))) | |
| 837 (let ((doc (get-language-info language-name 'documentation))) | |
|
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838 (labels ((princ-list (&rest args) |
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839 (while args (princ (car args)) (setq args (cdr args))) |
|
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840 (princ "\n"))) |
|
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|
841 (declare (inline princ-list)) |
| 771 | 842 (with-output-to-temp-buffer "*Help*" |
| 843 (princ-list language-name " language environment" "\n") | |
| 844 (if (stringp doc) | |
| 428 | 845 (progn |
| 771 | 846 (princ-list doc) |
| 847 (terpri))) | |
| 848 (let ((str (get-language-info language-name 'sample-text))) | |
| 849 (if (stringp str) | |
| 850 (progn | |
| 851 (princ "Sample text:\n") | |
| 852 (princ-list " " str) | |
| 853 (terpri)))) | |
| 854 (let ((input-method (get-language-info language-name 'input-method)) | |
| 855 (l (copy-sequence input-method-alist))) | |
| 856 (princ "Input methods") | |
| 857 (when input-method | |
| 858 (princ (format " (default, %s)" input-method)) | |
| 859 (setq input-method (assoc input-method input-method-alist)) | |
| 860 (setq l (cons input-method (delete input-method l)))) | |
| 861 (princ ":\n") | |
| 428 | 862 (while l |
| 771 | 863 (if (string= language-name (nth 1 (car l))) |
| 864 (princ-list " " (car (car l)) | |
| 865 (format " (`%s' in mode line)" (nth 3 (car l))))) | |
| 866 (setq l (cdr l)))) | |
| 867 (terpri) | |
| 868 (princ "Character sets:\n") | |
| 869 (let ((l (get-language-info language-name 'charset))) | |
| 870 (if (null l) | |
| 871 (princ-list " nothing specific to " language-name) | |
| 872 (while l | |
| 873 (princ-list " " (car l) ": " | |
| 874 (charset-description (car l))) | |
| 875 (setq l (cdr l))))) | |
| 876 (terpri) | |
| 877 (princ "Coding systems:\n") | |
| 878 (let ((l (get-language-info language-name 'coding-system))) | |
| 879 (if (null l) | |
| 880 (princ-list " nothing specific to " language-name) | |
| 881 (while l | |
| 882 (princ ; (format " %s (`%c' in mode line):\n\t%s\n" | |
| 883 ;; In XEmacs, `coding-system-mnemonic' returns string. | |
| 884 (format " %s (`%s' in English, `%s' in mode line):\n\t%s\n" | |
| 885 (car l) | |
| 886 (coding-system-description (car l)) | |
| 887 (coding-system-mnemonic (car l)) | |
| 888 (or (coding-system-documentation (car l)) | |
| 889 "Not documented.")) ) | |
| 890 ;; (let ((aliases (coding-system-get (car l) 'alias-coding-systems))) | |
| 891 ;; (when aliases | |
| 892 ;; (princ "\t") | |
| 893 ;; (princ (cons 'alias: (cdr aliases))) | |
| 894 ;; (terpri))) | |
| 895 (setq l (cdr l))))))))) | |
| 428 | 896 |
| 897 ;;; Charset property | |
| 898 | |
| 899 ;; (defsubst get-charset-property (charset propname) | |
| 900 ;; "Return the value of CHARSET's PROPNAME property. | |
| 901 ;; This is the last value stored with | |
| 902 ;; `(put-charset-property CHARSET PROPNAME VALUE)'." | |
| 903 ;; (plist-get (charset-plist charset) propname)) | |
| 904 | |
| 905 ;; (defsubst put-charset-property (charset propname value) | |
| 906 ;; "Store CHARSETS's PROPNAME property with value VALUE. | |
| 907 ;; It can be retrieved with `(get-charset-property CHARSET PROPNAME)'." | |
| 908 ;; (set-charset-plist charset | |
| 909 ;; (plist-put (charset-plist charset) propname value))) | |
| 910 | |
| 911 (defvar char-code-property-table | |
| 912 (make-char-table 'generic) | |
| 913 "Char-table containing a property list of each character code. | |
| 914 | |
| 915 See also the documentation of `get-char-code-property' and | |
| 916 `put-char-code-property'") | |
| 917 ;; (let ((plist (aref char-code-property-table char))) | |
| 918 (defun get-char-code-property (char propname) | |
| 919 "Return the value of CHAR's PROPNAME property in `char-code-property-table'." | |
| 920 (let ((plist (get-char-table char char-code-property-table))) | |
| 921 (if (listp plist) | |
| 922 (car (cdr (memq propname plist)))))) | |
| 923 | |
| 924 (defun put-char-code-property (char propname value) | |
| 925 "Store CHAR's PROPNAME property with VALUE in `char-code-property-table'. | |
| 926 It can be retrieved with `(get-char-code-property CHAR PROPNAME)'." | |
| 927 (let ((plist (get-char-table char char-code-property-table))) | |
| 928 (if plist | |
| 929 (let ((slot (memq propname plist))) | |
| 930 (if slot | |
| 931 (setcar (cdr slot) value) | |
| 932 (nconc plist (list propname value)))) | |
| 933 (put-char-table char (list propname value) char-code-property-table) | |
| 934 ))) | |
| 935 | |
| 936 | |
| 937 ;; Pretty description of encoded string | |
| 938 | |
| 939 ;; Alist of ISO 2022 control code vs the corresponding mnemonic string. | |
|
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940 (defvar iso-2022-control-alist |
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941 '((?\x1b . "ESC") |
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942 (?\x0e . "SO") |
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943 (?\x0f . "SI") |
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944 (?\x8e . "SS2") |
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945 (?\x8f . "SS3") |
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946 (?\x9b . "CSI"))) |
| 428 | 947 |
|
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948 (defun encoded-string-description (str coding-system) |
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949 "Return a pretty description of STR that is encoded by CODING-SYSTEM." |
|
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950 ;; XEmacs; no transformation to unibyte. |
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951 (mapconcat |
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952 (if (and coding-system (eq (coding-system-type coding-system) 'iso2022)) |
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953 ;; Try to get a pretty description for ISO 2022 escape sequences. |
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954 (function (lambda (x) (or (cdr (assq x iso-2022-control-alist)) |
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955 (format "#x%02X" x)))) |
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956 (function (lambda (x) (format "#x%02X" x)))) |
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957 str " ")) |
| 428 | 958 |
|
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959 ;; XEmacs; |
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960 ;; (defun encode-coding-char (char coding-system) in coding.el. |
| 428 | 961 |
| 771 | 962 |
| 963 ;; #### The following section is utter junk from mule-misc.el. | |
| 964 ;; I've deleted everything that's not referenced in mule-packages and | |
| 965 ;; not in FSF 20.6; there's no point in keeping old namespace-polluting | |
| 966 ;; Mule 2.3 crap around. --ben | |
| 967 | |
| 968 (defvar self-insert-after-hook nil | |
| 969 "Hook to run when extended self insertion command exits. Should take | |
| 970 two arguments START and END corresponding to character position.") | |
| 971 | |
| 972 (make-variable-buffer-local 'self-insert-after-hook) | |
| 973 | |
| 974 (defun delete-text-in-column (from to) | |
| 975 "Delete the text between column FROM and TO (exclusive) of the current line. | |
| 976 Nil of FORM or TO means the current column. | |
| 977 | |
| 978 If there's a character across the borders, the character is replaced | |
| 979 with the same width of spaces before deleting." | |
| 980 (save-excursion | |
| 981 (let (p1 p2) | |
| 982 (if from | |
| 983 (progn | |
| 984 (setq p1 (move-to-column from)) | |
| 985 (if (> p1 from) | |
| 986 (progn | |
| 987 (delete-char -1) | |
| 988 (insert-char ? (- p1 (current-column))) | |
| 989 (forward-char (- from p1)))))) | |
| 990 (setq p1 (point)) | |
| 991 (if to | |
| 992 (progn | |
| 993 (setq p2 (move-to-column to)) | |
| 994 (if (> p2 to) | |
| 995 (progn | |
| 996 (delete-char -1) | |
| 997 (insert-char ? (- p2 (current-column))) | |
| 998 (forward-char (- to p2)))))) | |
| 999 (setq p2 (point)) | |
| 1000 (delete-region p1 p2)))) | |
| 1001 | |
| 1002 (defun cancel-undo-boundary () | |
| 1003 "Cancel undo boundary." | |
| 1004 (if (and (consp buffer-undo-list) | |
| 1005 (null (car buffer-undo-list))) | |
| 1006 (setq buffer-undo-list (cdr buffer-undo-list)))) | |
| 1007 | |
| 1008 (defun define-egg-environment (env-sym doc-string enable-function) | |
| 1009 "Define a new language environment for egg, named by ENV-SYM. | |
| 1010 DOC-STRING should be a string describing the environment. | |
| 1011 ENABLE-FUNCTION should be a function of no arguments that will be called | |
| 1012 when the language environment is made current." | |
| 1013 (put env-sym 'egg-environ-doc-string doc-string) | |
| 1014 (put env-sym 'set-egg-environ enable-function)) | |
| 1015 | |
| 1016 | |
| 1017 ;; Init code. | |
| 1018 | |
| 1019 ;; auto-language-alist deleted. We have a more sophisticated system, | |
| 1020 ;; with the locales stored in the language data. | |
| 1021 | |
| 4145 | 1022 ;; Initialised in mule/general-late.el, which is compiled after all the |
| 1023 ;; language support--and, thus, minority Chinese coding systems and so | |
| 1024 ;; on--has been loaded. | |
| 3707 | 1025 (defvar posix-charset-to-coding-system-hash nil |
| 1026 "A map from the POSIX locale charset versions of the defined coding | |
|
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1027 systems' names, with all non-alpha-numeric characters removed, to the actual |
| 3707 | 1028 coding system names. Used at startup when working out which coding system |
| 1029 should be the default for the locale. ") | |
| 1030 | |
| 1031 (defun parse-posix-locale-string (locale-string) | |
| 1032 "Return values \(LANGUAGE REGION CHARSET MODIFIERS\) given LOCALE-STRING. | |
| 1033 | |
| 1034 LOCALE-STRING should be a POSIX locale. If it cannot be parsed as such, this | |
| 1035 function returns nil. " | |
| 1036 (let (language region charset modifiers locinfo) | |
| 1037 (setq locale-string (downcase locale-string)) | |
| 1038 (cond ((string-match | |
| 1039 #r"^\([a-z0-9]\{2,2\}\)\(_[a-z0-9]\{2,2\}\)?\(\.[^@]*\)?\(@.*\)?$" | |
| 1040 locale-string) | |
| 1041 (setq language (match-string 1 locale-string) | |
| 1042 region (match-string 2 locale-string) | |
| 1043 charset (match-string 3 locale-string) | |
| 1044 modifiers (match-string 4 locale-string) | |
| 1045 region (and region (replace-in-string region "^_" "")) | |
| 1046 charset (and charset (replace-in-string charset #r"^\." "")) | |
| 1047 modifiers (and modifiers | |
| 1048 (replace-in-string modifiers "^@" ""))) | |
| 1049 (when (and modifiers (equal modifiers "euro") (null charset)) | |
| 1050 ;; Not ideal for Latvian, say, but I don't have any locales | |
| 1051 ;; where the @euro modifier doesn't mean ISO-8859-15 in the 956 | |
| 1052 ;; I have. | |
| 1053 (setq charset "iso-8859-15")) | |
| 4073 | 1054 (when (and modifiers (equal modifiers "cyrillic") (null charset)) |
| 1055 ;; Feedback wanted! | |
| 1056 (setq charset "windows-1251")) | |
| 3707 | 1057 (values language region charset modifiers)) |
| 1058 ((and (string-match "^[a-z0-9]+$" locale-string) | |
| 1059 (assoc-ignore-case locale-string language-info-alist)) | |
| 1060 (setq language (get-language-info locale-string 'locale) | |
| 1061 language (if (listp language) (car language) language)) | |
| 1062 (values language region charset modifiers)) | |
| 1063 ((string-match #r"^\([a-z0-9]+\)\.\([a-z0-9]+\)$" locale-string) | |
| 1064 (when (assoc-ignore-case | |
| 1065 (setq locinfo (match-string 1 locale-string)) | |
| 1066 language-info-alist) | |
| 1067 (setq language (get-language-info locinfo 'locale) | |
| 1068 language (if (listp language) (car language) language))) | |
| 1069 (setq charset (match-string 2 locale-string)) | |
| 1070 (values language region charset modifiers))))) | |
| 1071 | |
| 1072 (defun create-variant-language-environment (langenv coding-system) | |
| 1073 "Create a variant of LANGENV with CODING-SYSTEM as its coding systems. | |
| 1074 | |
| 1075 The coding systems in question are those described in the | |
| 1076 `set-language-info' docstring with the property names of | |
| 1077 `native-coding-system' and `coding-system'. The name of the new language | |
| 1078 environment is the name of the old language environment, followed by | |
| 1079 CODING-SYSTEM in parentheses. Returns the name of the new language | |
| 3767 | 1080 environment. |
| 1081 | |
| 1082 This function also modifies the `coding-priority' of a language | |
| 3707 | 1083 environment. " |
| 1084 (check-coding-system coding-system) | |
| 1085 (if (symbolp langenv) (setq langenv (symbol-name langenv))) | |
| 1086 (unless (setq langenv | |
| 1087 (assoc-ignore-case langenv language-info-alist)) | |
| 1088 (error 'wrong-type-argument "Not a known language environment")) | |
| 1089 (set-language-info-alist | |
| 1090 (if (string-match " ([^)]+)$" (car langenv)) | |
| 1091 (replace-match (format " (%s)" | |
| 1092 (upcase (symbol-name | |
| 1093 (coding-system-name coding-system)))) | |
| 3737 | 1094 nil nil (car langenv)) |
| 3707 | 1095 (format "%s (%s)" (car langenv) |
| 1096 (upcase (symbol-name (coding-system-name coding-system))))) | |
| 1097 (destructive-plist-to-alist | |
| 3767 | 1098 (plist-put |
| 1099 (plist-put | |
| 4292 | 1100 (plist-put |
| 1101 (plist-put (alist-to-plist (cdr langenv)) 'native-coding-system | |
| 1102 coding-system) | |
| 1103 'coding-system (cons coding-system | |
| 1104 (cdr (assoc 'coding-system (cdr langenv))))) | |
| 1105 'coding-priority (cons coding-system | |
| 1106 (cdr (assq 'coding-priority (cdr langenv))))) | |
| 1107 ;; The tutorial coding system is important; otherwise the tutorial file | |
| 1108 ;; gets loaded in the variant coding system. | |
| 1109 'tutorial-coding-system | |
| 1110 (or (car-safe (cdr-safe (assoc 'tutorial-coding-system (cdr langenv)))) | |
| 1111 (car-safe (cdr-safe (assoc 'coding-system (cdr langenv))))))))) | |
| 801 | 1112 |
| 771 | 1113 (defun get-language-environment-from-locale (locale) |
| 1114 "Convert LOCALE into a language environment. | |
| 1115 LOCALE is a C library locale string, as returned by `current-locale'. | |
| 1116 Uses the `locale' property of the language environment." | |
| 3707 | 1117 (block langenv |
| 4103 | 1118 (multiple-value-bind (language ignored-arg charset ignored-arg) |
| 3707 | 1119 (parse-posix-locale-string locale) |
| 1120 (let ((case-fold-search t) | |
| 1121 (desired-coding-system | |
| 1122 (and charset (gethash (replace-in-string charset "[^a-z0-9]" "") | |
| 1123 posix-charset-to-coding-system-hash))) | |
| 3767 | 1124 lang locs given-coding-system) |
| 3707 | 1125 (dolist (langcons language-info-alist) |
| 1126 (setq lang (car langcons) | |
| 1127 locs (get-language-info lang 'locale)) | |
| 1128 (dolist (loc (if (listp locs) locs (list locs))) | |
| 1129 (cond ((functionp loc) | |
| 1130 (if (funcall loc locale) | |
| 1131 (return-from langenv lang))) | |
| 1132 ((stringp loc) | |
| 1133 (when (or (equal loc language) | |
| 1134 (string-match | |
| 1135 (format "^%s\\([^A-Za-z0-9]\\|$\\)" loc) | |
| 1136 locale)) | |
| 1137 (if (or (null desired-coding-system) | |
| 1138 (and desired-coding-system | |
| 3767 | 1139 (or (eq desired-coding-system |
| 1140 (setq given-coding-system | |
| 1141 (get-language-info | |
| 1142 lang | |
| 1143 'native-coding-system))) | |
| 1144 (and (listp given-coding-system) | |
| 1145 (memq desired-coding-system | |
| 1146 given-coding-system))))) | |
| 3707 | 1147 (return-from langenv lang) |
| 1148 (return-from langenv | |
| 1149 (create-variant-language-environment | |
| 1150 lang desired-coding-system)))))))))))) | |
| 771 | 1151 |
| 1152 (defun mswindows-get-language-environment-from-locale (ms-locale) | |
| 1153 "Convert MS-LOCALE (an MS Windows locale) into a language environment. | |
| 1154 MS-LOCALE is in the format recognized by `set-mswindows-current-locale' -- | |
| 1155 i.e. a language string or a cons (LANG . SUBLANG). Note: This is NOT the | |
| 1156 same as the C library locale format (see `set-current-locale')! | |
| 1157 | |
| 1158 This looks up the `mswindows-locale' property of all language environments; | |
| 1159 if nothing matching is found, it looks for a language environment with the | |
| 1160 same name (modulo case differences) as the LANG part of the locale." | |
| 1161 (or (consp ms-locale) (setq ms-locale (cons ms-locale "DEFAULT"))) | |
| 1162 (or (block langenv | |
| 1163 (dolist (langcons language-info-alist) | |
| 1164 (let* ((lang (car langcons)) | |
| 1165 (mswlocs (get-language-info lang 'mswindows-locale)) | |
| 1166 (mswlocs (if (and (consp mswlocs) | |
| 1167 (listp (cdr mswlocs))) | |
| 1168 mswlocs (list mswlocs)))) | |
| 1169 (dolist (loc mswlocs) | |
| 1170 (or (consp loc) (setq loc (cons loc "DEFAULT"))) | |
| 1171 (if (equalp loc ms-locale) | |
| 1172 (return-from langenv lang)))))) | |
| 1173 (dolist (langcons language-info-alist) | |
| 1174 (let* ((lang (car langcons))) | |
| 1175 (if (equalp lang (car ms-locale)) | |
| 1176 (return-from nil lang)))))) | |
| 1177 | |
| 1178 (defun get-native-coding-system-from-language-environment (langenv locale) | |
| 1179 "Return the native coding system appropriate for LANGENV. | |
| 1180 LANGENV is a string naming a language environment. May use the LOCALE | |
| 1181 \(which should be the C library LOCALE corresponding to LANGENV) to | |
| 1182 determine the correct coding system. (For example, in the Japanese language | |
| 1183 environment, there are multiple encodings in use: euc-jp, shift-jis, jis7, | |
| 1184 jis8, iso-2022-jp, etc. The LOCALE may tell which one is correct.) | |
| 1185 | |
| 1186 Specifically: Under X, the returned value is determined from these two. | |
| 1187 Under MS Windows, the native coding system must be set from the default | |
| 1188 system locale and is not influenced by LOCALE. (In other words, a program | |
| 1189 can't set the text encoding used to communicate with the OS. To get around | |
| 1190 this, we use Unicode whenever available, i.e. on Windows NT always and on | |
| 1318 | 1191 Windows 9x whenever a Unicode version of a system call is available.)" |
|
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1192 (cond ((eq system-type 'windows-nt) |
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1193 ;; should not apply to Cygwin, I don't think |
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1194 'mswindows-multibyte-system-default) |
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1195 ((featurep 'cygwin-use-utf-8) |
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1196 'utf-8) |
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1197 (t |
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1198 (let ((ncod (get-language-info langenv 'native-coding-system))) |
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1199 (if (or (functionp ncod) (not (listp ncod))) |
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1200 (setq ncod (list ncod))) |
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1201 (let ((native |
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1202 (dolist (try-native ncod) |
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1203 (let ((result |
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1204 (if (functionp try-native) |
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1205 (funcall try-native locale) |
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1206 try-native))) |
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|
1207 (if result (return result)))))) |
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1208 (or native (car (get-language-info langenv 'coding-system)) |
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|
1209 'raw-text)))))) |
| 771 | 1210 |
| 1211 (defun get-coding-system-from-locale (locale) | |
| 1212 "Return the coding system corresponding to a locale string." | |
| 1213 (get-native-coding-system-from-language-environment | |
| 1214 (get-language-environment-from-locale locale) locale)) | |
| 1215 | |
| 1216 (defvar mswindows-langenv-to-locale-table (make-hash-table) | |
| 1217 "Table mapping language environments to associated MS Windows locales. | |
| 1218 There may be more than one MS Windows locale that maps to a given language | |
| 1219 environment, so once we've made the mapping, we record it here when we need | |
| 1220 to make the reverse mapping. For example, all MS Windows locales with | |
| 1221 language ENGLISH will map to language environment English, and when the | |
| 1222 user starts up in such a locale, switches to another language environment | |
| 1223 and then back to English, we want the same locale again.") | |
| 1224 | |
| 1225 (defun set-locale-for-language-environment (langenv) | |
| 1226 "Sets the current system locale as appropriate for LANGENV. | |
| 1227 LANGENV is a language environment. The locale is determined by looking at | |
| 1228 the 'locale (or maybe 'mswindows-locale) property of LANGENV, and then | |
| 1229 setting it using `set-current-locale' and maybe also | |
| 1230 `mswindows-set-current-locale'. Also sets the LANG environment variable. | |
| 1231 Returns non-nil if successfully set the locale(s)." | |
|
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1232 (labels |
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1233 ((mswindows-get-and-set-locale-from-langenv (langenv) |
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1234 ;; find the mswindows locale for the langenv, make it current, |
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1235 ;; and return it. first we check the langenv-to-locale table |
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1236 ;; ... |
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1237 (let ((ms-locale |
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1238 (gethash langenv mswindows-langenv-to-locale-table))) |
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1239 (if ms-locale (progn |
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1240 (declare-fboundp (mswindows-set-current-locale |
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1241 ms-locale)) |
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1242 ms-locale) |
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1243 ;; ... if not, see if the langenv specifies any locale(s). |
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1244 ;; if not, construct one from the langenv name. |
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1245 (let* ((mslocs (get-language-info langenv 'mswindows-locale)) |
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1246 (mslocs (or mslocs (cons (upcase langenv) "DEFAULT"))) |
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1247 (mslocs (if (and (consp mslocs) |
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1248 (listp (cdr mslocs))) |
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1249 mslocs (list mslocs)))) |
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1250 (dolist (msloc mslocs) |
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1251 ;; Sometimes a language with DEFAULT is different from |
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1252 ;; with SYS_DEFAULT, and on my system |
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1253 ;; (set-current-locale "chinese") is NOT the same as |
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1254 ;; (set-current-locale "chinese-default")! The latter |
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1255 ;; gives Taiwan (DEFAULT), the former PRC (SYS_DEFAULT). |
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1256 ;; In the interests of consistency, we always use DEFAULT. |
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1257 (or (consp msloc) (setq msloc (cons msloc "DEFAULT"))) |
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|
1258 (when (condition-case nil |
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1259 (progn |
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1260 (declare-fboundp (mswindows-set-current-locale |
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|
1261 msloc)) |
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1262 t) |
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1263 (error nil)) |
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1264 (return msloc)))))))) |
| 771 | 1265 (if (eq system-type 'windows-nt) |
| 1266 (let ((ms-locale (mswindows-get-and-set-locale-from-langenv langenv))) | |
| 1267 (when ms-locale | |
| 1268 ;; also need to set the clib locale. | |
| 1269 (or (set-current-locale | |
| 1270 ;; if the locale is '("DUTCH" . "DUTCH_BELGIAN"), | |
| 1271 ;; try "DUTCH-BELGIAN". (Case is insignificant; | |
| 1272 ;; "dutch-belgian" works just as well.) This type | |
| 1273 ;; of transformation should always work, and you | |
| 1274 ;; get back the canonicalized version -- in this | |
| 1275 ;; case "Dutch_Belgium.1252". Note the futility of | |
| 1276 ;; trying to construct "Belgium" directly from | |
| 1277 ;; "BELGIAN". | |
| 1278 ;; | |
| 1279 ;; BUT ... We actually have to be trickier. | |
| 1280 ;; ("SPANISH" . "SPANISH_DOMINICAN_REPUBLIC") needs | |
| 1281 ;; to end up as "SPANISH-DOMINICAN REPUBLIC"; any | |
| 1282 ;; other punctuation makes it fail (you either get | |
| 1283 ;; Spain for the country, or nil). | |
| 1284 ;; | |
| 1285 ;; assume it's DEFAULT or NEUTRAL (or something else | |
| 1286 ;; without the language in it?) and prepend the | |
| 1287 ;; language. | |
| 1288 (if (string-match "_" (cdr ms-locale)) | |
| 1289 (replace-in-string | |
| 1290 (replace-match "-" nil nil (cdr ms-locale)) "_" " ") | |
| 1291 (format "%s-%s" (car ms-locale) (cdr ms-locale)))) | |
| 1292 ;; ???? huh ???? if failure, just try the language | |
| 1293 ;; name. | |
| 1294 (set-current-locale (car ms-locale)))) | |
| 1295 ;; also set LANG, for the benefit of Cygwin subprocesses. | |
| 1296 (let* ((cygloc (or (get-language-info langenv 'cygwin-locale) | |
| 1297 (get-language-info langenv 'locale))) | |
| 1298 (cygloc (if (listp cygloc) (car (last cygloc)) cygloc))) | |
| 1299 (if (and cygloc (stringp cygloc)) (setenv "LANG" cygloc))) | |
| 1300 (not (null ms-locale))) | |
| 1301 | |
| 1302 ;; not MS Windows native. | |
| 1303 | |
| 1304 ;; Cygwin is as usual an unholy mixture -- C library locales | |
| 1305 ;; that follow Unix conventions, but also MS Windows locales. | |
| 1306 ;; So set the MS Windows locale, and then try to find a Unix | |
| 1307 ;; locale. | |
|
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1308 (when (memq system-type '(cygwin32 cygwin64)) |
| 771 | 1309 (mswindows-get-and-set-locale-from-langenv langenv)) |
| 1310 (let ((locs (get-language-info langenv 'locale))) | |
| 1311 (dolist (loc (if (listp locs) locs (list locs))) | |
| 1312 (let ((retval | |
| 1313 (cond ((functionp loc) (funcall loc nil)) | |
| 1314 ((stringp loc) (set-current-locale loc)) | |
| 1315 (t nil)))) | |
| 1316 (when retval | |
| 1317 (setenv "LANG" retval) | |
| 1318 (return t)))))))) | |
| 1319 | |
| 1320 (defun set-language-environment-coding-systems (language-name | |
| 1321 &optional eol-type) | |
| 1322 "Do various coding system setups for language environment LANGUAGE-NAME. | |
| 1323 This function assumes that the locale for LANGUAGE-NAME has been set using | |
| 1324 `set-current-locale'. | |
| 1325 | |
| 1326 The optional arg EOL-TYPE specifies the eol-type of the default value | |
| 1327 of buffer-file-coding-system set by this function." | |
| 1328 | |
| 1329 ;; The following appeared as the third paragraph of the doc string for this | |
| 778 | 1330 ;; function, but it's not in FSF 21.1, and it's not true, since we call |
| 771 | 1331 ;; reset-coding-categories-to-default before calling this function. #### |
| 1332 ;; Should we rethink this? | |
| 1333 | |
| 1334 ; Note that `coding-priority-list' is not reset first; thus changing language | |
| 1335 ; environment allows recognition of coding systems from previously set language | |
| 1336 ; environments. (This will not work if the desired coding systems are from the | |
| 1337 ; same category. E.g., starting with a Hebrew language environment, ISO 8859-8 | |
| 1338 ; will be recognized. If you shift to Russian, ISO 8859-8 will be shadowed by | |
| 1339 ; ISO 8859-5, and cannot be automatically recognized without resetting the | |
| 1340 ; language environment to Hebrew. However, if you shift from Japanese to | |
| 1341 ; Russian, ISO-2022-JP will continue to be automatically recognized, since | |
| 1342 ; ISO-8859-5 and ISO-2022-JP are different coding categories.)" | |
| 1343 | |
|
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1344 (labels ((maybe-change-coding-system-with-eol (codesys eol-type) |
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1345 ;; if the EOL type specifies a specific type of ending, |
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1346 ;; then add that ending onto the given CODESYS; otherwise, |
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1347 ;; return CODESYS unchanged. |
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1348 (if (memq eol-type '(lf crlf cr unix dos mac)) |
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1349 (coding-system-change-eol-conversion codesys eol-type) |
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1350 codesys))) |
|
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1351 (declare (inline maybe-change-coding-system-with-eol)) |
| 771 | 1352 ;; initialize category mappings and priority list. |
| 1353 (let* ((priority (get-language-info language-name 'coding-priority)) | |
| 1354 (default-coding (car priority))) | |
| 1355 (if priority | |
| 1356 (let ((categories (mapcar 'coding-system-category priority)) | |
| 1357 category checked-categories) | |
| 1358 (while priority | |
| 1359 (unless (memq (setq category (car categories)) checked-categories) | |
| 1360 (set-coding-category-system category (car priority)) | |
| 1361 (setq checked-categories (cons category checked-categories))) | |
| 1362 (setq priority (cdr priority) | |
| 1363 categories (cdr categories))) | |
| 1364 (set-coding-priority-list (nreverse checked-categories)) | |
| 1365 )) | |
| 1366 | |
| 1367 ;; set the default buffer coding system from the first element of the | |
| 1368 ;; list in the `coding-priority' property, under Unix. Under Windows, it | |
| 1369 ;; should stay at `mswindows-multibyte', which will reference the current | |
| 3707 | 1370 ;; code page. ([Does it really make sense to set the Unix default |
| 771 | 1371 ;; that way? NOTE also that it's not the same as the native coding |
| 1372 ;; system for the locale, which is correct -- the form we choose for text | |
| 3707 | 1373 ;; files should not necessarily have any relevance to whether we're in a |
| 1374 ;; Shift-JIS, EUC-JP, JIS, or other Japanese locale.]) | |
| 1375 ;; | |
| 1376 ;; On Unix--with the exception of Mac OS X--there is no way to | |
| 1377 ;; know for certain what coding system to use for file names, and | |
| 1378 ;; the environment is the best guess. If a particular user's | |
| 1379 ;; preferences differ from this, then that particular user needs | |
| 1380 ;; to edit ~/.xemacs/init.el. Aidan Kehoe, Sun Nov 26 18:11:31 CET | |
| 1381 ;; 2006. OS X uses an almost-normal-form version of UTF-8. | |
| 1382 | |
|
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1383 (unless (memq system-type '(windows-nt cygwin32 cygwin64)) |
| 771 | 1384 (set-default-buffer-file-coding-system |
| 1385 (maybe-change-coding-system-with-eol default-coding eol-type)))) | |
| 1386 ;; (setq default-sendmail-coding-system default-coding) | |
| 1387 | |
| 1318 | 1388 ;; set the native coding system and the default process-output system. |
| 771 | 1389 (let ((native (get-native-coding-system-from-language-environment |
|
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1390 language-name (current-locale))) |
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1391 seven current-input-mode) |
| 1318 | 1392 |
| 771 | 1393 (condition-case nil |
| 1318 | 1394 (define-coding-system-alias 'native |
| 1395 (maybe-change-coding-system-with-eol native eol-type)) | |
| 771 | 1396 (error |
| 1397 (warn "Invalid native-coding-system %s in language environment %s" | |
| 1398 native language-name))) | |
|
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1399 ;; These variables have magic handlers to make setting them equivalent |
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1400 ;; to setting the file-name, terminal and keyboard coding system |
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1401 ;; aliases. See coding.el. |
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1402 (setq file-name-coding-system |
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1403 (or |
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1404 (let ((fncs (assq system-type system-type-file-name-coding))) |
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1405 (and fncs (cdr fncs))) |
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1406 native) |
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1407 ;; Set the default keyboard and terminal coding systems to the |
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1408 ;; native coding system of the language environment. |
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1409 keyboard-coding-system native |
| 3142 | 1410 terminal-coding-system native) |
|
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1411 ;; Does this coding system use bit 8? |
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1412 (setq seven (and (eq (coding-system-type native) 'iso2022) |
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1413 (coding-system-property native 'seven))) |
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1414 ;; Set the coding system for TTY consoles. |
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1415 (dolist (console |
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1416 (delete* 'tty (console-list) :key #'console-type :test-not #'eq)) |
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1417 (set-console-tty-coding-system console native) |
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1418 (unless seven |
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1419 ;; The native coding system uses bit 8, so we need to use that bit |
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1420 ;; for character information, not for meta. |
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1421 (setq current-input-mode (current-input-mode console)) |
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1422 (and (memq (second current-input-mode) '(nil t)) |
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1423 (set-input-mode nil (first current-input-mode) 'character |
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1424 (third current-input-mode) console)))) |
| 1318 | 1425 ;; process output should not have EOL conversion. under MS Windows |
| 1426 ;; and Cygwin, this screws things up (`cmd' is fine with just LF and | |
| 1427 ;; `bash' chokes on CR-LF). | |
| 771 | 1428 (setq default-process-coding-system |
| 1318 | 1429 (cons (car default-process-coding-system) native))))) |
| 771 | 1430 |
| 1431 (defun init-locale-at-early-startup () | |
| 1432 "Don't call this." | |
| 1433 ;; Called directly from the C code in intl.c, very early in the startup | |
| 1434 ;; sequence. Don't call this!!! The main purpose is to set things up | |
| 1435 ;; so that non-ASCII strings of all sorts (e.g. file names, command-line | |
| 1436 ;; arguments, environment variables) can be correctly processed during | |
| 1437 ;; the rest of the startup sequence. As a result, this will almost | |
| 1438 ;; certainly be the FIRST Lisp code called when a dumped XEmacs is run, | |
| 1439 ;; and it's called before ANY of the external environment is initialized. | |
| 1440 ;; Thus, it cannot interact at all with the outside world, make any | |
| 1441 ;; system calls, etc! (Except for `set-current-locale'.) | |
| 1442 ;; | |
| 1443 ;; NOTE: The following are the basic settings we have to deal with when | |
| 1444 ;; changing the language environment; | |
| 1445 ;; | |
| 1446 ;; -- current C library locale | |
| 1447 ;; -- under MS Windows, current MS Windows locale | |
| 1448 ;; -- LANG environment variable | |
| 1449 ;; -- native/file-name coding systems | |
| 1450 ;; -- subprocess write coding system (cdr of default-process-coding-system) | |
| 1451 ;; -- coding categories (for detection) | |
| 1452 | |
| 1453 (let (langenv) | |
| 1454 ;; under ms windows (any): | |
|
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1455 (if (memq system-type '(windows-nt cygwin32 cygwin64)) |
| 778 | 1456 (let ((userdef (declare-fboundp (mswindows-user-default-locale))) |
| 1457 (sysdef (declare-fboundp (mswindows-system-default-locale)))) | |
| 771 | 1458 ;; (1) current langenv comes from user-default locale. |
| 1459 (setq langenv (mswindows-get-language-environment-from-locale | |
| 1460 userdef)) | |
| 1461 ;; (2) init the langenv-to-locale table. | |
| 1462 (puthash (mswindows-get-language-environment-from-locale sysdef) | |
| 1463 sysdef mswindows-langenv-to-locale-table) | |
| 1464 ;; user-default second in langenv-to-locale table so it will | |
| 1465 ;; override the system-default if the two are different but both | |
| 1466 ;; map to the same language environment | |
| 1467 (puthash langenv userdef mswindows-langenv-to-locale-table) | |
| 1468 ;; (3) setup C lib locale, MS Windows locale, LANG environment | |
| 1469 ;; variable. Note that under Cygwin we are ignoring the | |
| 1470 ;; passed-in LANG environment variable for the moment -- it's | |
| 1471 ;; usually wrong anyway and just says "C". #### Perhaps we | |
| 1472 ;; should reconsider. | |
| 1473 (and langenv (set-locale-for-language-environment langenv)) | |
| 1474 ;; (4) override current MS Windows locale with the user-default | |
| 1475 ;; locale. Always init the MS Windows locale from the | |
| 1476 ;; user-default locale even if the langenv doesn't correspond; | |
| 1477 ;; we might not be able to find a langenv for the user-default | |
| 1478 ;; locale but we should still use the right code page, etc. | |
| 778 | 1479 (declare-fboundp (mswindows-set-current-locale userdef))) |
| 771 | 1480 ;; Unix: |
| 3173 | 1481 (let (locstring) |
| 1482 ;; Init the POSIX locale from the environment--this calls the C | |
| 1483 ;; library's setlocale(3). | |
| 1484 (set-current-locale "") | |
| 1485 ;; Can't let locstring be the result of (set-current-locale "") | |
| 1486 ;; because that can return a more detailed string than we know how | |
| 1487 ;; to handle. | |
| 1488 (setq locstring (current-locale) | |
| 1489 ;; assume C lib locale and LANG env var are set correctly. | |
| 1490 ;; use them to find the langenv. | |
| 1491 langenv | |
| 1492 (and locstring (get-language-environment-from-locale | |
| 1493 locstring))))) | |
| 771 | 1494 ;; All systems: |
| 1495 (unless langenv (setq langenv "English")) | |
| 1496 (setq current-language-environment langenv) | |
| 1497 ;; Setup various coding systems and categories. | |
| 1498 (let ((default-eol-type (coding-system-eol-type | |
| 1499 default-buffer-file-coding-system))) | |
| 1500 (reset-language-environment) | |
| 1501 (set-language-environment-coding-systems langenv default-eol-type)))) | |
| 1502 | |
| 1503 (defun init-mule-at-startup () | |
| 1504 "Initialize MULE environment at startup. Don't call this." | |
| 1505 | |
| 2367 | 1506 (when (not load-unicode-tables-at-dump-time) |
| 1507 (load-unicode-tables)) | |
| 771 | 1508 |
| 2367 | 1509 ;; This is called (currently; might be moved earlier) from startup.el, |
| 1510 ;; after the basic GUI systems have been initialized, and just before the | |
| 1511 ;; init file gets read in. It needs to finish up initializing the | |
| 1512 ;; current language environment. Very early in the startup procedure we | |
| 1513 ;; determined the default language environment from the locale, and | |
| 1514 ;; bootstrapped the native, file-name and process I/O coding systems. | |
| 1515 ;; Now we need to do it over `the right away'. | |
| 771 | 1516 (finish-set-language-environment current-language-environment) |
| 1517 | |
| 1518 ;; Load a (localizable) locale-specific init file, if it exists. | |
| 1519 ;; We now use the language environment name, NOT the locale, | |
| 1520 ;; whose name varies from system to system. | |
| 1521 (load (format "%s%s/locale-start" | |
| 1522 (locate-data-directory "start-files") | |
| 1523 current-language-environment) | |
| 1524 t t) | |
| 1525 | |
| 1526 ;; #### the rest is junk that should be deleted. | |
| 1527 | |
| 1528 (when current-language-environment | |
| 1529 ;; rman seems to be incompatible with encoded text | |
| 1530 (setq Manual-use-rosetta-man nil)) | |
| 1531 | |
| 1532 ;; Register available input methods by loading LEIM list file. | |
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1533 (load leim-list-file-name 'noerror 'nomessage 'nosuffix)) |
| 771 | 1534 |
| 1535 ;; Code deleted: init-mule-tm (Enable the tm package by default) | |
| 428 | 1536 |
| 1537 ;;; mule-cmds.el ends here |