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e8af40ee | 1 | ;;; w32-fns.el --- Lisp routines for Windows NT |
b578f267 | 2 | |
49bd2bfe | 3 | ;; Copyright (C) 1994, 2001, 2004 Free Software Foundation, Inc. |
95ed0025 | 4 | |
68429d86 | 5 | ;; Author: Geoff Voelker <voelker@cs.washington.edu> |
284b3043 | 6 | ;; Keywords: internal |
95ed0025 RS |
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 | |
b578f267 EN |
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. | |
95ed0025 RS |
24 | |
25 | ;;; Commentary: | |
26 | ||
27 | ;; (August 12, 1993) | |
81b38822 | 28 | ;; Created. |
95ed0025 | 29 | |
81b38822 KH |
30 | ;; (November 21, 1994) |
31 | ;; [C-M-backspace] defined. | |
32 | ;; mode-line-format defined to show buffer file type. | |
33 | ;; audio bell initialized. | |
95ed0025 RS |
34 | |
35 | ;;; Code: | |
36 | ||
37 | ;; Map delete and backspace | |
38 | (define-key function-key-map [backspace] "\177") | |
39 | (define-key function-key-map [delete] "\C-d") | |
40 | (define-key function-key-map [M-backspace] [?\M-\177]) | |
81b38822 KH |
41 | (define-key function-key-map [C-M-backspace] [\C-\M-delete]) |
42 | ||
95ed0025 RS |
43 | ;; Ignore case on file-name completion |
44 | (setq completion-ignore-case t) | |
45 | ||
bcaf1c36 | 46 | ;; Map all versions of a filename (8.3, longname, mixed case) to the |
d234707d GV |
47 | ;; same buffer. |
48 | (setq find-file-visit-truename t) | |
49 | ||
161ab819 AI |
50 | (defun w32-version () |
51 | "Return the MS-Windows version numbers. | |
52 | The value is a list of three integers: the major and minor version | |
53 | numbers, and the build number." | |
54 | (x-server-version)) | |
55 | ||
ee82af56 | 56 | (defun w32-using-nt () |
49bd2bfe JB |
57 | "Return non-nil if running on a 32-bit Windows system. |
58 | That includes all Windows systems except for 9X/Me." | |
ee82af56 GV |
59 | (and (eq system-type 'windows-nt) (getenv "SystemRoot"))) |
60 | ||
61 | (defun w32-shell-name () | |
d234707d | 62 | "Return the name of the shell being used." |
ee82af56 GV |
63 | (or (and (boundp 'explicit-shell-file-name) explicit-shell-file-name) |
64 | (getenv "ESHELL") | |
65 | (getenv "SHELL") | |
66 | (and (w32-using-nt) "cmd.exe") | |
67 | "command.com")) | |
68 | ||
d234707d GV |
69 | (defun w32-system-shell-p (shell-name) |
70 | (and shell-name | |
bcaf1c36 | 71 | (member (downcase (file-name-nondirectory shell-name)) |
d234707d | 72 | w32-system-shells))) |
ee82af56 | 73 | |
f3e62da2 | 74 | (defun w32-shell-dos-semantics () |
49bd2bfe | 75 | "Return non-nil if the interactive shell being used expects MSDOS shell semantics." |
f3e62da2 GV |
76 | (or (w32-system-shell-p (w32-shell-name)) |
77 | (and (member (downcase (file-name-nondirectory (w32-shell-name))) | |
78 | '("cmdproxy" "cmdproxy.exe")) | |
79 | (w32-system-shell-p (getenv "COMSPEC"))))) | |
80 | ||
d234707d GV |
81 | (defun w32-check-shell-configuration () |
82 | "Check the configuration of shell variables on Windows NT/9X. | |
ee82af56 | 83 | This function is invoked after loading the init files and processing |
d234707d GV |
84 | the command line arguments. It issues a warning if the user or site |
85 | has configured the shell with inappropriate settings." | |
85f568ec | 86 | (interactive) |
d234707d GV |
87 | (let ((prev-buffer (current-buffer)) |
88 | (buffer (get-buffer-create "*Shell Configuration*")) | |
89 | (system-shell)) | |
90 | (set-buffer buffer) | |
91 | (erase-buffer) | |
92 | (if (w32-system-shell-p (getenv "ESHELL")) | |
93 | (insert (format "Warning! The ESHELL environment variable uses %s. | |
bcaf1c36 | 94 | You probably want to change it so that it uses cmdproxy.exe instead.\n\n" |
d234707d GV |
95 | (getenv "ESHELL")))) |
96 | (if (w32-system-shell-p (getenv "SHELL")) | |
97 | (insert (format "Warning! The SHELL environment variable uses %s. | |
bcaf1c36 | 98 | You probably want to change it so that it uses cmdproxy.exe instead.\n\n" |
d234707d GV |
99 | (getenv "SHELL")))) |
100 | (if (w32-system-shell-p shell-file-name) | |
101 | (insert (format "Warning! shell-file-name uses %s. | |
bcaf1c36 | 102 | You probably want to change it so that it uses cmdproxy.exe instead.\n\n" |
d234707d GV |
103 | shell-file-name))) |
104 | (if (and (boundp 'explicit-shell-file-name) | |
105 | (w32-system-shell-p explicit-shell-file-name)) | |
106 | (insert (format "Warning! explicit-shell-file-name uses %s. | |
107 | You probably want to change it so that it uses cmdproxy.exe instead.\n\n" | |
108 | explicit-shell-file-name))) | |
109 | (setq system-shell (> (buffer-size) 0)) | |
85f568ec GV |
110 | |
111 | ;; Allow user to specify that they really do want to use one of the | |
112 | ;; "system" shells, despite the drawbacks, but still warn if | |
113 | ;; shell-command-switch doesn't match. | |
114 | (if w32-allow-system-shell | |
115 | (erase-buffer)) | |
116 | ||
d234707d GV |
117 | (cond (system-shell |
118 | ;; System shells. | |
119 | (if (string-equal "-c" shell-command-switch) | |
120 | (insert "Warning! shell-command-switch is \"-c\". | |
121 | You should set this to \"/c\" when using a system shell.\n\n")) | |
122 | (if w32-quote-process-args | |
123 | (insert "Warning! w32-quote-process-args is t. | |
124 | You should set this to nil when using a system shell.\n\n"))) | |
125 | ;; Non-system shells. | |
126 | (t | |
127 | (if (string-equal "/c" shell-command-switch) | |
128 | (insert "Warning! shell-command-switch is \"/c\". | |
129 | You should set this to \"-c\" when using a non-system shell.\n\n")) | |
130 | (if (not w32-quote-process-args) | |
131 | (insert "Warning! w32-quote-process-args is nil. | |
132 | You should set this to t when using a non-system shell.\n\n")))) | |
133 | (if (> (buffer-size) 0) | |
134 | (display-buffer buffer) | |
135 | (kill-buffer buffer)) | |
136 | (set-buffer prev-buffer))) | |
137 | ||
138 | (add-hook 'after-init-hook 'w32-check-shell-configuration) | |
139 | ||
b1ed8648 AI |
140 | ;;; Override setting chosen at startup. |
141 | (defun set-default-process-coding-system () | |
142 | ;; Most programs on Windows will accept Unix line endings on input | |
143 | ;; (and some programs ported from Unix require it) but most will | |
144 | ;; produce DOS line endings on output. | |
145 | (setq default-process-coding-system | |
146 | (if default-enable-multibyte-characters | |
147 | '(undecided-dos . undecided-unix) | |
148 | '(raw-text-dos . raw-text-unix))) | |
149 | (or (w32-using-nt) | |
150 | ;; On Windows 9x, make cmdproxy default to using DOS line endings | |
151 | ;; for input, because command.com requires this. | |
152 | (setq process-coding-system-alist | |
153 | `(("[cC][mM][dD][pP][rR][oO][xX][yY]" | |
154 | . ,(if default-enable-multibyte-characters | |
155 | '(undecided-dos . undecided-dos) | |
156 | '(raw-text-dos . raw-text-dos))))))) | |
157 | ||
158 | (add-hook 'before-init-hook 'set-default-process-coding-system) | |
159 | ||
85f568ec GV |
160 | |
161 | ;;; Basic support functions for managing Emacs' locale setting | |
162 | ||
163 | (defvar w32-valid-locales nil | |
164 | "List of locale ids known to be supported.") | |
165 | ||
166 | ;;; This is the brute-force version; an efficient version is now | |
167 | ;;; built-in though. | |
168 | (if (not (fboundp 'w32-get-valid-locale-ids)) | |
169 | (defun w32-get-valid-locale-ids () | |
170 | "Return list of all valid Windows locale ids." | |
171 | (let ((i 65535) | |
172 | locales) | |
173 | (while (> i 0) | |
174 | (if (w32-get-locale-info i) | |
175 | (setq locales (cons i locales))) | |
176 | (setq i (1- i))) | |
177 | locales))) | |
178 | ||
179 | (defun w32-list-locales () | |
180 | "List the name and id of all locales supported by Windows." | |
181 | (interactive) | |
182 | (if (null w32-valid-locales) | |
183 | (setq w32-valid-locales (w32-get-valid-locale-ids))) | |
184 | (switch-to-buffer-other-window (get-buffer-create "*Supported Locales*")) | |
185 | (erase-buffer) | |
186 | (insert "LCID\tAbbrev\tFull name\n\n") | |
187 | (insert (mapconcat | |
188 | '(lambda (x) | |
189 | (format "%d\t%s\t%s" | |
190 | x | |
191 | (w32-get-locale-info x) | |
192 | (w32-get-locale-info x t))) | |
193 | w32-valid-locales "\n")) | |
194 | (insert "\n") | |
195 | (goto-char (point-min))) | |
196 | ||
197 | ||
d234707d GV |
198 | ;;; Setup Info-default-directory-list to include the info directory |
199 | ;;; near where Emacs executable was installed. We used to set INFOPATH, | |
200 | ;;; but when this is set Info-default-directory-list is ignored. We | |
201 | ;;; also cannot rely upon what is set in paths.el because they assume | |
202 | ;;; that configuration during build time is correct for runtime. | |
203 | (defun w32-init-info () | |
204 | (let* ((instdir (file-name-directory invocation-directory)) | |
85f568ec | 205 | (dir1 (expand-file-name "../info/" instdir)) |
d234707d GV |
206 | (dir2 (expand-file-name "../../../info/" instdir))) |
207 | (if (file-exists-p dir1) | |
bcaf1c36 | 208 | (setq Info-default-directory-list |
d234707d GV |
209 | (append Info-default-directory-list (list dir1))) |
210 | (if (file-exists-p dir2) | |
211 | (setq Info-default-directory-list | |
212 | (append Info-default-directory-list (list dir2))))))) | |
213 | ||
214 | (add-hook 'before-init-hook 'w32-init-info) | |
3eab6a03 | 215 | |
8929f478 GV |
216 | ;;; The variable source-directory is used to initialize Info-directory-list. |
217 | ;;; However, the common case is that Emacs is being used from a binary | |
218 | ;;; distribution, and the value of source-directory is meaningless in that | |
219 | ;;; case. Even worse, source-directory can refer to a directory on a drive | |
220 | ;;; on the build machine that happens to be a removable drive on the user's | |
221 | ;;; machine. When this happens, Emacs tries to access the removable drive | |
222 | ;;; and produces the abort/retry/ignore dialog. Since we do not use | |
223 | ;;; source-directory, set it to something that is a reasonable approximation | |
224 | ;;; on the user's machine. | |
225 | ||
bcaf1c36 | 226 | ;(add-hook 'before-init-hook |
1198514b | 227 | ; '(lambda () |
bcaf1c36 | 228 | ; (setq source-directory (file-name-as-directory |
1198514b | 229 | ; (expand-file-name ".." exec-directory))))) |
8929f478 | 230 | |
d234707d GV |
231 | (defun convert-standard-filename (filename) |
232 | "Convert a standard file's name to something suitable for the current OS. | |
233 | This function's standard definition is trivial; it just returns the argument. | |
234 | However, on some systems, the function is redefined | |
235 | with a definition that really does change some file names." | |
bcaf1c36 SS |
236 | (let ((name |
237 | (save-match-data | |
238 | (if (string-match "\\`/cygdrive/\\([a-zA-Z]\\)/" filename) | |
239 | (replace-match "\\1:/" t nil filename) | |
240 | (copy-sequence filename)))) | |
4e0cd0df | 241 | (start 0)) |
d234707d | 242 | ;; leave ':' if part of drive specifier |
82d5a7b2 AI |
243 | (if (and (> (length name) 1) |
244 | (eq (aref name 1) ?:)) | |
d234707d GV |
245 | (setq start 2)) |
246 | ;; destructively replace invalid filename characters with ! | |
247 | (while (string-match "[?*:<>|\"\000-\037]" name start) | |
248 | (aset name (match-beginning 0) ?!) | |
249 | (setq start (match-end 0))) | |
dd89ee95 | 250 | ;; convert directory separators to Windows format |
105adfb5 | 251 | ;; (but only if the shell in use requires it) |
5f47fb28 EZ |
252 | (when (w32-shell-dos-semantics) |
253 | (setq start 0) | |
254 | (while (string-match "/" name start) | |
255 | (aset name (match-beginning 0) ?\\) | |
256 | (setq start (match-end 0)))) | |
257 | name)) | |
4e0cd0df | 258 | |
95ed0025 | 259 | ;;; Fix interface to (X-specific) mouse.el |
bffcf874 RS |
260 | (defun x-set-selection (type data) |
261 | (or type (setq type 'PRIMARY)) | |
262 | (put 'x-selections type data)) | |
263 | ||
264 | (defun x-get-selection (&optional type data-type) | |
265 | (or type (setq type 'PRIMARY)) | |
266 | (get 'x-selections type)) | |
267 | ||
1b42a753 | 268 | (defun set-w32-system-coding-system (coding-system) |
49bd2bfe | 269 | "Set the coding system used by the Windows system to CODING-SYSTEM. |
1b42a753 GV |
270 | This is used for things like passing font names with non-ASCII |
271 | characters in them to the system. For a list of possible values of | |
086ceb30 JR |
272 | CODING-SYSTEM, use \\[list-coding-systems]. |
273 | ||
274 | This function is provided for backward compatibility, since | |
49bd2bfe | 275 | `w32-system-coding-system' is now an alias for `locale-coding-system'." |
1b42a753 | 276 | (interactive |
086ceb30 | 277 | (list (let ((default locale-coding-system)) |
1b42a753 GV |
278 | (read-coding-system |
279 | (format "Coding system for system calls (default, %s): " | |
280 | default) | |
281 | default)))) | |
282 | (check-coding-system coding-system) | |
086ceb30 JR |
283 | (setq locale-coding-system coding-system)) |
284 | ||
285 | ;; locale-coding-system was introduced to do the same thing as | |
286 | ;; w32-system-coding-system. Use that instead. | |
287 | (defvaralias 'w32-system-coding-system 'locale-coding-system) | |
1b42a753 | 288 | |
81b38822 KH |
289 | ;;; Set to a system sound if you want a fancy bell. |
290 | (set-message-beep nil) | |
291 | ||
d234707d GV |
292 | ;;; The "Windows" keys on newer keyboards bring up the Start menu |
293 | ;;; whether you want it or not - make Emacs ignore these keystrokes | |
294 | ;;; rather than beep. | |
295 | (global-set-key [lwindow] 'ignore) | |
296 | (global-set-key [rwindow] 'ignore) | |
297 | ||
298 | ;; Map certain keypad keys into ASCII characters | |
299 | ;; that people usually expect. | |
300 | (define-key function-key-map [tab] [?\t]) | |
301 | (define-key function-key-map [linefeed] [?\n]) | |
302 | (define-key function-key-map [clear] [11]) | |
303 | (define-key function-key-map [return] [13]) | |
304 | (define-key function-key-map [escape] [?\e]) | |
305 | (define-key function-key-map [M-tab] [?\M-\t]) | |
306 | (define-key function-key-map [M-linefeed] [?\M-\n]) | |
307 | (define-key function-key-map [M-clear] [?\M-\013]) | |
308 | (define-key function-key-map [M-return] [?\M-\015]) | |
309 | (define-key function-key-map [M-escape] [?\M-\e]) | |
310 | ||
311 | ;; These don't do the right thing (voelker) | |
312 | ;(define-key function-key-map [backspace] [127]) | |
313 | ;(define-key function-key-map [delete] [127]) | |
314 | ;(define-key function-key-map [M-backspace] [?\M-\d]) | |
315 | ;(define-key function-key-map [M-delete] [?\M-\d]) | |
316 | ||
317 | ;; These tell read-char how to convert | |
318 | ;; these special chars to ASCII. | |
319 | (put 'tab 'ascii-character ?\t) | |
320 | (put 'linefeed 'ascii-character ?\n) | |
321 | (put 'clear 'ascii-character 12) | |
322 | (put 'return 'ascii-character 13) | |
323 | (put 'escape 'ascii-character ?\e) | |
324 | (put 'backspace 'ascii-character 127) | |
325 | (put 'delete 'ascii-character 127) | |
326 | ||
5e568214 JR |
327 | ;; W32 uses different color indexes than standard: |
328 | ||
329 | (defvar w32-tty-standard-colors | |
f5e4bd09 | 330 | '(("black" 0 0 0 0) |
5e568214 | 331 | ("blue" 1 0 0 52480) ; MediumBlue |
f5e4bd09 EZ |
332 | ("green" 2 8704 35584 8704) ; ForestGreen |
333 | ("cyan" 3 0 52736 53504) ; DarkTurquoise | |
334 | ("red" 4 45568 8704 8704) ; FireBrick | |
335 | ("magenta" 5 35584 0 35584) ; DarkMagenta | |
336 | ("brown" 6 40960 20992 11520) ; Sienna | |
337 | ("lightgray" 7 48640 48640 48640) ; Gray | |
338 | ("darkgray" 8 26112 26112 26112) ; Gray40 | |
339 | ("lightblue" 9 0 0 65535) ; Blue | |
340 | ("lightgreen" 10 0 65535 0) ; Green | |
341 | ("lightcyan" 11 0 65535 65535) ; Cyan | |
342 | ("lightred" 12 65535 0 0) ; Red | |
343 | ("lightmagenta" 13 65535 0 65535) ; Magenta | |
344 | ("yellow" 14 65535 65535 0) ; Yellow | |
345 | ("white" 15 65535 65535 65535)) | |
5e568214 JR |
346 | "A list of VGA console colors, their indices and 16-bit RGB values.") |
347 | ||
15fa6efb JR |
348 | |
349 | (defun w32-add-charset-info (xlfd-charset windows-charset codepage) | |
350 | "Function to add character sets to display with Windows fonts. | |
351 | Creates entries in `w32-charset-info-alist'. | |
352 | XLFD-CHARSET is a string which will appear in the XLFD font name to | |
353 | identify the character set. WINDOWS-CHARSET is a symbol identifying | |
354 | the Windows character set this maps to. For the list of possible | |
355 | values, see the documentation for `w32-charset-info-alist'. CODEPAGE | |
356 | can be a numeric codepage that Windows uses to display the character | |
357 | set, t for Unicode output with no codepage translation or nil for 8 | |
358 | bit output with no translation." | |
359 | (add-to-list 'w32-charset-info-alist | |
360 | (cons xlfd-charset (cons windows-charset codepage))) | |
361 | ) | |
362 | ||
4c7ec703 JR |
363 | ;; The last charset we add becomes the "preferred" charset for the return |
364 | ;; value from w32-select-font etc, so list the most important charsets last. | |
15fa6efb JR |
365 | (w32-add-charset-info "iso8859-14" 'w32-charset-ansi 28604) |
366 | (w32-add-charset-info "iso8859-15" 'w32-charset-ansi 28605) | |
15fa6efb JR |
367 | (w32-add-charset-info "jisx0201-latin" 'w32-charset-shiftjis 932) |
368 | (w32-add-charset-info "jisx0201-katakana" 'w32-charset-shiftjis 932) | |
4c7ec703 | 369 | (w32-add-charset-info "jisx0208-sjis" 'w32-charset-shiftjis 932) |
15fa6efb JR |
370 | (w32-add-charset-info "ksc5601.1987" 'w32-charset-hangeul 949) |
371 | (w32-add-charset-info "big5" 'w32-charset-chinesebig5 950) | |
372 | (w32-add-charset-info "gb2312" 'w32-charset-gb2312 936) | |
373 | (w32-add-charset-info "ms-symbol" 'w32-charset-symbol nil) | |
374 | (w32-add-charset-info "ms-oem" 'w32-charset-oem 437) | |
375 | (w32-add-charset-info "ms-oemlatin" 'w32-charset-oem 850) | |
376 | (if (boundp 'w32-extra-charsets-defined) | |
377 | (progn | |
378 | (w32-add-charset-info "iso8859-2" 'w32-charset-easteurope 28592) | |
379 | (w32-add-charset-info "iso8859-3" 'w32-charset-turkish 28593) | |
380 | (w32-add-charset-info "iso8859-4" 'w32-charset-baltic 28594) | |
15fa6efb JR |
381 | (w32-add-charset-info "iso8859-6" 'w32-charset-arabic 28596) |
382 | (w32-add-charset-info "iso8859-7" 'w32-charset-greek 28597) | |
383 | (w32-add-charset-info "iso8859-8" 'w32-charset-hebrew 1255) | |
384 | (w32-add-charset-info "iso8859-9" 'w32-charset-turkish 1254) | |
385 | (w32-add-charset-info "iso8859-13" 'w32-charset-baltic 1257) | |
386 | (w32-add-charset-info "koi8-r" 'w32-charset-russian 20866) | |
4c7ec703 | 387 | (w32-add-charset-info "iso8859-5" 'w32-charset-russian 28595) |
15fa6efb JR |
388 | (w32-add-charset-info "tis620" 'w32-charset-thai 874) |
389 | (w32-add-charset-info "ksc5601.1992" 'w32-charset-johab 1361) | |
390 | (w32-add-charset-info "mac" 'w32-charset-mac nil))) | |
391 | (if (boundp 'w32-unicode-charset-defined) | |
392 | (progn | |
4c7ec703 JR |
393 | (w32-add-charset-info "unicode" 'w32-charset-unicode t) |
394 | (w32-add-charset-info "iso10646-1" 'w32-charset-unicode t)) | |
ac169f7b JR |
395 | ;; If unicode windows charset is not defined, use ansi fonts. |
396 | (w32-add-charset-info "iso10646-1" 'w32-charset-ansi t)) | |
4c7ec703 | 397 | (w32-add-charset-info "iso8859-1" 'w32-charset-ansi 1252) |
52f32671 | 398 | |
47092217 JR |
399 | (make-obsolete-variable 'w32-enable-italics |
400 | 'w32-enable-synthesized-fonts "21.1") | |
d4b7d6b4 | 401 | (make-obsolete-variable 'w32-charset-to-codepage-alist |
47092217 | 402 | 'w32-charset-info-alist "21.1") |
d4b7d6b4 | 403 | |
3b4cf5db AI |
404 | \f |
405 | ;;;; Selections and cut buffers | |
406 | ||
407 | ;;; We keep track of the last text selected here, so we can check the | |
408 | ;;; current selection against it, and avoid passing back our own text | |
409 | ;;; from x-cut-buffer-or-selection-value. | |
410 | (defvar x-last-selected-text nil) | |
411 | ||
412 | ;;; It is said that overlarge strings are slow to put into the cut buffer. | |
413 | ;;; Note this value is overridden below. | |
414 | (defvar x-cut-buffer-max 20000 | |
415 | "Max number of characters to put in the cut buffer.") | |
416 | ||
3b4cf5db AI |
417 | (defun x-select-text (text &optional push) |
418 | "Make TEXT the last selected text. | |
419 | If `x-select-enable-clipboard' is non-nil, copy the text to the system | |
420 | clipboard as well. Optional PUSH is ignored on Windows." | |
421 | (if x-select-enable-clipboard | |
422 | (w32-set-clipboard-data text)) | |
423 | (setq x-last-selected-text text)) | |
bcaf1c36 | 424 | |
3b4cf5db AI |
425 | (defun x-get-selection-value () |
426 | "Return the value of the current selection. | |
427 | Consult the selection, then the cut buffer. Treat empty strings as if | |
428 | they were unset." | |
429 | (if x-select-enable-clipboard | |
430 | (let (text) | |
431 | ;; Don't die if x-get-selection signals an error. | |
432 | (condition-case c | |
433 | (setq text (w32-get-clipboard-data)) | |
434 | (error (message "w32-get-clipboard-data:%s" c))) | |
435 | (if (string= text "") (setq text nil)) | |
436 | (cond | |
437 | ((not text) nil) | |
438 | ((eq text x-last-selected-text) nil) | |
439 | ((string= text x-last-selected-text) | |
440 | ;; Record the newer string, so subsequent calls can use the 'eq' test. | |
441 | (setq x-last-selected-text text) | |
442 | nil) | |
443 | (t | |
444 | (setq x-last-selected-text text)))))) | |
445 | \f | |
446 | (defalias 'x-cut-buffer-or-selection-value 'x-get-selection-value) | |
447 | ||
448 | ;;; Arrange for the kill and yank functions to set and check the clipboard. | |
449 | (setq interprogram-cut-function 'x-select-text) | |
450 | (setq interprogram-paste-function 'x-get-selection-value) | |
451 | ||
452 | ||
ab5796a9 | 453 | ;;; arch-tag: c49b48cc-0f4f-454f-a274-c2dc34815e14 |
a0d14345 | 454 | ;;; w32-fns.el ends here |