Mercurial > hg > xemacs-beta
annotate lisp/select.el @ 5637:a366601407c2
Add an explicit autoload for #'cl-compile-time-init, bytecomp.el.
2012-01-02 Aidan Kehoe <kehoea@parhasard.net>
* bytecomp.el (cl-compile-time-init): Add an autoload for this,
some code supplies -no-autoloads when byte-compiling, making it
necessary.
author | Aidan Kehoe <kehoea@parhasard.net> |
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date | Mon, 02 Jan 2012 16:52:59 +0000 |
parents | cc1ec4c93a67 |
children | 0df3cedee9ac |
rev | line source |
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428 | 1 ;;; select.el --- Lisp interface to windows selections. |
2 | |
3 ;; Copyright (C) 1998 Andy Piper. | |
4 ;; Copyright (C) 1990, 1997 Free Software Foundation, Inc. | |
5 ;; Copyright (C) 1995 Sun Microsystems. | |
851 | 6 ;; Copyright (C) 2002 Ben Wing. |
428 | 7 |
8 ;; Maintainer: XEmacs Development Team | |
9 ;; Keywords: extensions, dumped | |
10 | |
11 ;; This file is part of XEmacs. | |
12 | |
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13 ;; XEmacs is free software: you can redistribute it and/or modify it |
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14 ;; under the terms of the GNU General Public License as published by the |
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15 ;; Free Software Foundation, either version 3 of the License, or (at your |
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16 ;; option) any later version. |
428 | 17 |
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18 ;; XEmacs is distributed in the hope that it will be useful, but WITHOUT |
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19 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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20 ;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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21 ;; for more details. |
428 | 22 |
23 ;; You should have received a copy of the GNU General Public License | |
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24 ;; along with XEmacs. If not, see <http://www.gnu.org/licenses/>. |
428 | 25 |
26 ;;; Synched up with: Not in FSF | |
27 | |
28 ;;; Commentary: | |
29 | |
444 | 30 ;; This file is dumped with XEmacs |
428 | 31 |
32 ;;; Code: | |
33 | |
2624 | 34 ;; We prefer UTF8_STRING to COMPOUND_TEXT because, even though the latter |
35 ;; gives us more information when taking data from other XEmacs invocations, | |
36 ;; Mozilla will happily give us broken COMPOUND_TEXT where a non-broken | |
37 ;; UTF8_STRING is available. | |
38 (defvar selection-preferred-types | |
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39 `(UTF8_STRING ,@(and (featurep 'mule) '(COMPOUND_TEXT)) STRING |
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40 ,@(mapcan #'(lambda (format) |
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41 (and (featurep format) |
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42 (list (intern (format "image/%s" format))))) |
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43 '(png gif jpeg tiff xpm xbm))) |
2624 | 44 "An ordered list of X11 type atoms for selections we want to receive. |
45 We prefer UTF8_STRING over COMPOUND_TEXT, for compatibility with a certain | |
46 widely-used browser suite, and COMPOUND_TEXT over STRING. (COMPOUND_TEXT | |
47 isn't available on non-Mule.) We also accept several image types. | |
48 | |
49 For compatibility, this can be a single atom. ") | |
50 | |
51 ;; Renamed because it was just ridiculous for it to be mostly image formats | |
52 ;; and named selected-text-type. | |
53 (define-obsolete-variable-alias 'selected-text-type 'selection-preferred-types) | |
428 | 54 |
444 | 55 (defvar selection-sets-clipboard nil |
428 | 56 "Controls the selection's relationship to the clipboard. |
57 When non-nil, any operation that sets the primary selection will also | |
58 set the clipboard.") | |
59 | |
60 (defun copy-primary-selection () | |
851 | 61 "Copy the selection to the Clipboard and the kill ring. |
62 This is similar to the command \\[kill-ring-save] except that it will | |
63 save to the Clipboard even if that command doesn't, and it handles rectangles | |
64 properly." | |
428 | 65 (interactive) |
66 (and (console-on-window-system-p) | |
67 (cut-copy-clear-internal 'copy))) | |
68 | |
69 (defun kill-primary-selection () | |
2624 | 70 "Copy the selection to the Clipboard and the kill ring, then delete it. |
851 | 71 This is similar to the command \\[kill-region] except that it will |
72 save to the Clipboard even if that command doesn't, and it handles rectangles | |
73 properly." | |
428 | 74 (interactive "*") |
75 (and (console-on-window-system-p) | |
76 (cut-copy-clear-internal 'cut))) | |
77 | |
78 (defun delete-primary-selection () | |
79 "Delete the selection without copying it to the Clipboard or the kill ring." | |
80 (interactive "*") | |
81 (and (console-on-window-system-p) | |
82 (cut-copy-clear-internal 'clear))) | |
83 | |
84 (defun yank-clipboard-selection () | |
85 "Insert the current Clipboard selection at point." | |
86 (interactive "*") | |
87 (when (console-on-window-system-p) | |
88 (setq last-command nil) | |
89 (setq this-command 'yank) ; so that yank-pop works. | |
90 (let ((clip (get-clipboard))) | |
91 (or clip (error "there is no clipboard selection")) | |
92 (push-mark) | |
93 (insert clip)))) | |
94 | |
95 (defun get-clipboard () | |
829 | 96 "Return text pasted to the clipboard. |
843 | 97 Not suitable for `interprogram-paste-function', use `get-clipboard-foreign'." |
98 (get-selection 'CLIPBOARD)) | |
99 | |
100 (defun get-clipboard-foreign () | |
101 "Return text pasted to the clipboard by another program. | |
829 | 102 See `interprogram-paste-function' for more information." |
843 | 103 (get-selection-foreign 'CLIPBOARD)) |
428 | 104 |
105 (define-device-method get-cutbuffer | |
106 "Return the value of one of the cut buffers. | |
107 This will do nothing under anything other than X.") | |
108 | |
109 (defun get-selection-no-error (&optional type data-type) | |
442 | 110 "Return the value of a window-system selection. |
2624 | 111 The argument TYPE (default `PRIMARY') says which selection, and the argument |
112 DATA-TYPE (defaulting to the value of `selection-preferred-types'), says how | |
113 to convert the data. Returns NIL if there is no selection." | |
442 | 114 (condition-case nil (get-selection type data-type) (t nil))) |
428 | 115 |
116 (defun get-selection (&optional type data-type) | |
843 | 117 "Return the value of a window-system selection. |
2624 | 118 The argument TYPE (default `PRIMARY') says which selection, and the argument |
119 DATA-TYPE (defaulting to the value of, and compatible with, | |
120 `selection-preferred-types') says how to convert the data. If | |
121 there is no selection an error is signalled. Not suitable in a | |
122 `interprogram-paste-function', q.v." | |
428 | 123 (or type (setq type 'PRIMARY)) |
2624 | 124 (or data-type (setq data-type selection-preferred-types)) |
829 | 125 (if (consp data-type) |
2624 | 126 ;; TARGETS is a vector; we want a list so we can memq --> append it to |
127 ;; nil. | |
128 (let ((targets (append (get-selection-internal type 'TARGETS) nil)) | |
129 res) | |
130 (catch 'converted | |
131 (if targets | |
132 (dolist (current-preference data-type) | |
3072 | 133 (condition-case nil |
2624 | 134 (if (and (memq current-preference targets) |
135 (setq res (get-selection-internal | |
136 type current-preference))) | |
137 (throw 'converted res)) | |
138 (selection-conversion-error | |
139 nil)))) | |
140 ;; The source app didn't offer us anything compatible in TARGETS, | |
141 ;; or they're not negotiating at all. (That is, we're probably not | |
142 ;; on X11.) Try to convert to the types specified by our caller, | |
143 ;; and throw an error if the last one of those fails. | |
144 (while data-type | |
145 (condition-case err | |
146 (progn | |
147 (setq res (get-selection-internal type (car data-type))) | |
2656 | 148 (if res (throw 'converted res) |
149 (signal 'selection-conversion-error nil))) | |
2624 | 150 (selection-conversion-error |
151 (if (cdr data-type) | |
2656 | 152 (setq data-type (cdr data-type)) |
2624 | 153 (signal (car err) (cdr err)))))))) |
829 | 154 (get-selection-internal type data-type))) |
428 | 155 |
847 | 156 (defun get-selection-foreign (&optional type data-type) |
157 "Return the value of a window-system selection, or nil if XEmacs owns it. | |
2624 | 158 The argument TYPE (default `PRIMARY') says which selection, and the argument |
159 DATA-TYPE (defaulting to the value of `selection-preferred-types' which see) | |
160 says how to convert the data. If there is no selection an error is | |
161 signalled. See `interprogram-paste-function' for more information." | |
847 | 162 (unless (selection-owner-p type) |
163 (get-selection type data-type))) | |
164 | |
428 | 165 ;; FSFmacs calls this `x-set-selection', and reverses the |
442 | 166 ;; first two arguments (duh ...). This order is more logical. |
167 (defun own-selection (data &optional type how-to-add data-type) | |
168 "Make a window-system selection of type TYPE and value DATA. | |
428 | 169 The argument TYPE (default `PRIMARY') says which selection, |
442 | 170 and DATA specifies the contents. DATA may be any lisp data type |
171 that can be converted using the function corresponding to DATA-TYPE | |
172 in `select-converter-alist'---strings are the usual choice, but | |
173 other types may be permissible depending on the DATA-TYPE parameter | |
851 | 174 \(if DATA-TYPE is not supplied, the default behavior is window |
442 | 175 system specific, but strings are always accepted). |
176 HOW-TO-ADD may be any of the following: | |
177 | |
178 'replace-all or nil -- replace all data in the selection. | |
179 'replace-existing -- replace data for specified DATA-TYPE only. | |
180 'append or t -- append data to existing DATA-TYPE data. | |
181 | |
182 DATA-TYPE is the window-system specific data type identifier | |
851 | 183 \(see `register-selection-data-type' for more information). |
428 | 184 |
185 The selection may also be a cons of two markers pointing to the same buffer, | |
186 or an overlay. In these cases, the selection is considered to be the text | |
442 | 187 between the markers *at whatever time the selection is examined* (note |
188 that the window system clipboard does not necessarily duplicate this | |
189 behavior - it doesn't on mswindows for example). | |
428 | 190 Thus, editing done in the buffer after you specify the selection |
191 can alter the effective value of the selection. | |
192 | |
193 The data may also be a vector of valid non-vector selection values. | |
194 | |
195 Interactively, the text of the region is used as the selection value." | |
196 (interactive (if (not current-prefix-arg) | |
197 (list (read-string "Store text for pasting: ")) | |
198 (list (substring (region-beginning) (region-end))))) | |
442 | 199 ;; calling own-selection-internal will mess this up, so preserve it. |
200 (let ((zmacs-region-stays zmacs-region-stays)) | |
201 ;FSFmacs huh?? It says: | |
202 ;; "This is for temporary compatibility with pre-release Emacs 19." | |
203 ;(if (stringp type) | |
204 ; (setq type (intern type))) | |
205 (or type (setq type 'PRIMARY)) | |
206 (if (null data) | |
207 (disown-selection-internal type) | |
208 (own-selection-internal type data how-to-add data-type) | |
209 (when (and (eq type 'PRIMARY) | |
210 selection-sets-clipboard) | |
211 (own-selection-internal 'CLIPBOARD data how-to-add data-type))) | |
212 (cond ((eq type 'PRIMARY) | |
213 (setq primary-selection-extent | |
214 (select-make-extent-for-selection | |
215 data primary-selection-extent))) | |
216 ((eq type 'SECONDARY) | |
217 (setq secondary-selection-extent | |
218 (select-make-extent-for-selection | |
219 data secondary-selection-extent))))) | |
220 ;; zmacs-region-stays is for commands, not low-level functions. | |
221 ;; when behaving as the latter, we better not set it, or we will | |
222 ;; cause unwanted sticky-region behavior in kill-region and friends. | |
223 (if (interactive-p) | |
224 (setq zmacs-region-stays t)) | |
428 | 225 data) |
226 | |
227 (defun dehilight-selection (selection) | |
228 "for use as a value of `lost-selection-hooks'." | |
229 (cond ((eq selection 'PRIMARY) | |
230 (if primary-selection-extent | |
231 (let ((inhibit-quit t)) | |
232 (if (consp primary-selection-extent) | |
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233 (mapc 'delete-extent primary-selection-extent) |
428 | 234 (delete-extent primary-selection-extent)) |
235 (setq primary-selection-extent nil))) | |
236 (if zmacs-regions (zmacs-deactivate-region))) | |
237 ((eq selection 'SECONDARY) | |
238 (if secondary-selection-extent | |
239 (let ((inhibit-quit t)) | |
240 (if (consp secondary-selection-extent) | |
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241 (mapc 'delete-extent secondary-selection-extent) |
428 | 242 (delete-extent secondary-selection-extent)) |
243 (setq secondary-selection-extent nil))))) | |
244 nil) | |
245 | |
246 (setq lost-selection-hooks 'dehilight-selection) | |
247 | |
442 | 248 (defun own-clipboard (string &optional push) |
249 "Paste the given string to the window system Clipboard. | |
250 See `interprogram-cut-function' for more information." | |
428 | 251 (own-selection string 'CLIPBOARD)) |
252 | |
253 (defun disown-selection (&optional secondary-p) | |
487 | 254 "Assuming we own the selection, disown it. |
255 With an argument, discard the secondary selection instead of the | |
256 primary selection." | |
428 | 257 (disown-selection-internal (if secondary-p 'SECONDARY 'PRIMARY)) |
258 (when (and selection-sets-clipboard | |
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259 (memq secondary-p '(nil PRIMARY CLIPBOARD))) |
428 | 260 (disown-selection-internal 'CLIPBOARD))) |
261 | |
262 ;; selections and active regions | |
263 | |
264 ;; If and only if zmacs-regions is true: | |
265 | |
266 ;; When a mark is pushed and the region goes into the "active" state, we | |
267 ;; assert it as the Primary selection. This causes it to be hilighted. | |
268 ;; When the region goes into the "inactive" state, we disown the Primary | |
269 ;; selection, causing the region to be dehilighted. | |
270 | |
271 ;; Note that it is possible for the region to be in the "active" state | |
272 ;; and not be hilighted, if it is in the active state and then some other | |
273 ;; application asserts the selection. This is probably not a big deal. | |
274 | |
275 (defun activate-region-as-selection () | |
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276 (cond ((and-fboundp 'mouse-track-rectangle-p |
4222 | 277 (mouse-track-rectangle-p |
278 (mouse-track-activate-rectangular-selection)))) | |
487 | 279 ((marker-buffer (mark-marker t)) |
280 (own-selection (cons (point-marker t) (mark-marker t)))))) | |
428 | 281 |
282 (defvar primary-selection-extent nil | |
283 "The extent of the primary selection; don't use this.") | |
284 | |
285 (defvar secondary-selection-extent nil | |
286 "The extent of the secondary selection; don't use this.") | |
287 | |
288 (defun select-make-extent-for-selection (selection previous-extent) | |
289 ;; Given a selection, this makes an extent in the buffer which holds that | |
290 ;; selection, for highlighting purposes. If the selection isn't associated | |
291 ;; with a buffer, this does nothing. | |
2624 | 292 ;; |
293 ;; Something similar needs to be hooked into the rectangle functions. | |
428 | 294 (let ((buffer nil) |
295 (valid (and (extentp previous-extent) | |
296 (extent-object previous-extent) | |
297 (buffer-live-p (extent-object previous-extent)))) | |
298 start end) | |
299 (cond ((stringp selection) | |
300 ;; if we're selecting a string, lose the previous extent used | |
301 ;; to highlight the selection. | |
302 (setq valid nil)) | |
303 ((consp selection) | |
304 (setq start (min (car selection) (cdr selection)) | |
305 end (max (car selection) (cdr selection)) | |
306 valid (and valid | |
307 (eq (marker-buffer (car selection)) | |
308 (extent-object previous-extent))) | |
309 buffer (marker-buffer (car selection)))) | |
310 ((extentp selection) | |
311 (setq start (extent-start-position selection) | |
312 end (extent-end-position selection) | |
313 valid (and valid | |
314 (eq (extent-object selection) | |
315 (extent-object previous-extent))) | |
316 buffer (extent-object selection))) | |
317 (t | |
318 (signal 'error (list "invalid selection" selection)))) | |
319 | |
320 (if valid | |
321 nil | |
322 (condition-case () | |
323 (if (listp previous-extent) | |
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324 (mapc 'delete-extent previous-extent) |
428 | 325 (delete-extent previous-extent)) |
326 (error nil))) | |
327 | |
328 (if (not buffer) | |
329 ;; string case | |
330 nil | |
331 ;; normal case | |
332 (if valid | |
333 (set-extent-endpoints previous-extent start end) | |
334 (setq previous-extent (make-extent start end buffer)) | |
335 | |
336 ;; Make the extent be closed on the right, which means that if | |
337 ;; characters are inserted exactly at the end of the extent, the | |
338 ;; extent will grow to cover them. This is important for shell | |
339 ;; buffers - suppose one makes a selection, and one end is at | |
340 ;; point-max. If the shell produces output, that marker will remain | |
341 ;; at point-max (its position will increase). So it's important that | |
342 ;; the extent exhibit the same behavior, lest the region covered by | |
343 ;; the extent (the visual indication), and the region between point | |
344 ;; and mark (the actual selection value) become different! | |
345 (set-extent-property previous-extent 'end-open nil) | |
346 | |
347 (cond | |
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348 ((and-fboundp 'mouse-track-rectangle-p |
4222 | 349 (mouse-track-rectangle-p |
350 (setq previous-extent (list previous-extent)) | |
351 (default-mouse-track-next-move-rect start end previous-extent) | |
352 )))) | |
428 | 353 previous-extent)))) |
354 | |
355 (defun valid-simple-selection-p (data) | |
442 | 356 "An obsolete function that tests whether something was a valid simple |
357 selection using the old XEmacs selection support. You shouldn't use this | |
358 any more, because just about anything could be a valid selection now." | |
428 | 359 (or (stringp data) |
360 ;FSFmacs huh?? (symbolp data) | |
361 (integerp data) | |
362 (and (consp data) | |
363 (integerp (car data)) | |
364 (or (integerp (cdr data)) | |
365 (and (consp (cdr data)) | |
366 (integerp (car (cdr data)))))) | |
367 (extentp data) | |
368 (and (consp data) | |
369 (markerp (car data)) | |
370 (markerp (cdr data)) | |
371 (marker-buffer (car data)) | |
372 (marker-buffer (cdr data)) | |
373 (eq (marker-buffer (car data)) | |
374 (marker-buffer (cdr data))) | |
375 (buffer-live-p (marker-buffer (car data))) | |
376 (buffer-live-p (marker-buffer (cdr data)))))) | |
377 | |
378 (defun cut-copy-clear-internal (mode) | |
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379 (or (memq mode '(cut copy clear)) (error "unknown mode %S" mode)) |
428 | 380 (or (selection-owner-p) |
381 (error "XEmacs does not own the primary selection")) | |
382 (setq last-command nil) | |
383 (or primary-selection-extent | |
384 (error "the primary selection is not an extent?")) | |
385 (save-excursion | |
386 (let (rect-p b s e) | |
387 (cond | |
388 ((consp primary-selection-extent) | |
389 (setq rect-p t | |
390 b (extent-object (car primary-selection-extent)) | |
391 s (extent-start-position (car primary-selection-extent)) | |
392 e (extent-end-position (car (reverse primary-selection-extent))))) | |
393 (t | |
394 (setq rect-p nil | |
395 b (extent-object primary-selection-extent) | |
396 s (extent-start-position primary-selection-extent) | |
397 e (extent-end-position primary-selection-extent)))) | |
398 (set-buffer b) | |
399 (cond ((memq mode '(cut copy)) | |
400 (if rect-p | |
401 (progn | |
851 | 402 ;; killed-rectangle is defvarred in rect.el |
428 | 403 (setq killed-rectangle (extract-rectangle s e)) |
404 (kill-new (mapconcat #'identity killed-rectangle "\n"))) | |
405 (copy-region-as-kill s e)) | |
406 ;; Maybe killing doesn't own clipboard. Make sure it happens. | |
407 ;; This memq is kind of grody, because they might have done it | |
408 ;; some other way, but owning the clipboard twice in that case | |
409 ;; wouldn't actually hurt anything. | |
410 (or (and (consp kill-hooks) (memq 'own-clipboard kill-hooks)) | |
851 | 411 (eq 'own-clipboard interprogram-cut-function) |
428 | 412 (own-clipboard (car kill-ring))))) |
413 (cond ((memq mode '(cut clear)) | |
414 (if rect-p | |
415 (delete-rectangle s e) | |
416 (delete-region s e)))) | |
417 (disown-selection nil) | |
418 ))) | |
419 | |
442 | 420 |
428 | 421 ;;; Functions to convert the selection into various other selection |
442 | 422 ;;; types. |
423 | |
424 ;; These next three functions get called by C code... | |
425 (defun select-convert-in (selection type value) | |
426 "Attempt to convert the specified external VALUE to the specified DATA-TYPE, | |
427 for the specified SELECTION. Return nil if this is impossible, or a | |
428 suitable internal representation otherwise." | |
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429 (and value |
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430 (funcall (or (cdr (assq type selection-converter-in-alist)) #'ignore) |
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431 selection type value))) |
428 | 432 |
442 | 433 (defun select-convert-out (selection type value) |
434 "Attempt to convert the specified internal VALUE for the specified DATA-TYPE | |
435 and SELECTION. Return nil if this is impossible, or a suitable external | |
436 representation otherwise." | |
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437 (and value |
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438 (funcall (or (cdr (assq type selection-converter-out-alist)) #'ignore) |
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439 selection type value))) |
442 | 440 |
441 (defun select-coerce (selection type value) | |
442 "Attempt to convert the specified internal VALUE to a representation | |
443 suitable for return from `get-selection' in the specified DATA-TYPE. Return | |
444 nil if this is impossible, or a suitable representation otherwise." | |
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445 (and value |
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446 (funcall (or (cdr (assq type selection-conversion-alist)) #'ignore) |
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447 selection type value))) |
442 | 448 |
449 ;; The rest of the functions on this "page" are conversion handlers, | |
450 ;; append handlers and buffer-kill handlers. | |
428 | 451 (defun select-convert-to-text (selection type value) |
452 (cond ((stringp value) | |
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453 (substring-no-properties value)) |
428 | 454 ((extentp value) |
455 (save-excursion | |
456 (set-buffer (extent-object value)) | |
457 (save-restriction | |
458 (widen) | |
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459 (buffer-substring-no-properties (extent-start-position value) |
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460 (extent-end-position value))))) |
428 | 461 ((and (consp value) |
462 (markerp (car value)) | |
463 (markerp (cdr value))) | |
464 (or (eq (marker-buffer (car value)) (marker-buffer (cdr value))) | |
465 (signal 'error | |
466 (list "markers must be in the same buffer" | |
467 (car value) (cdr value)))) | |
468 (save-excursion | |
469 (set-buffer (or (marker-buffer (car value)) | |
470 (error "selection is in a killed buffer"))) | |
471 (save-restriction | |
472 (widen) | |
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473 (buffer-substring-no-properties (car value) (cdr value))))) |
428 | 474 (t nil))) |
475 | |
2624 | 476 (defun select-convert-to-timestamp (selection type value) |
477 (let ((ts (get-xemacs-selection-timestamp selection))) | |
478 (if ts (cons 'TIMESTAMP ts)))) | |
479 | |
480 (defun select-convert-to-utf-8-text (selection type value) | |
481 (cond ((stringp value) | |
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482 (cons 'UTF8_STRING (encode-coding-string |
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483 (substring-no-properties value) 'utf-8))) |
2624 | 484 ((extentp value) |
485 (save-excursion | |
486 (set-buffer (extent-object value)) | |
487 (save-restriction | |
488 (widen) | |
489 (cons 'UTF8_STRING | |
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490 (encode-coding-string (buffer-substring-no-properties |
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491 (extent-start-position value) |
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492 (extent-end-position value)) |
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493 'utf-8))))) |
2624 | 494 ((and (consp value) |
495 (markerp (car value)) | |
496 (markerp (cdr value))) | |
497 (or (eq (marker-buffer (car value)) (marker-buffer (cdr value))) | |
498 (signal 'error | |
499 (list "markers must be in the same buffer" | |
500 (car value) (cdr value)))) | |
501 (save-excursion | |
502 (set-buffer (or (marker-buffer (car value)) | |
503 (error "selection is in a killed buffer"))) | |
504 (save-restriction | |
505 (widen) | |
506 (cons 'UTF8_STRING (encode-coding-string | |
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507 (buffer-substring-no-properties |
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508 (car value) (cdr value)) 'utf-8))))) |
2624 | 509 (t nil))) |
510 | |
442 | 511 (defun select-coerce-to-text (selection type value) |
512 (select-convert-to-text selection type value)) | |
513 | |
428 | 514 (defun select-convert-to-string (selection type value) |
515 (let ((outval (select-convert-to-text selection type value))) | |
442 | 516 ;; force the string to be not in Compound Text format. This grubby |
517 ;; hack will go soon, to be replaced by a more general mechanism. | |
428 | 518 (if (stringp outval) |
519 (cons 'STRING outval) | |
520 outval))) | |
521 | |
522 (defun select-convert-to-compound-text (selection type value) | |
523 ;; converts to compound text automatically | |
524 (select-convert-to-text selection type value)) | |
525 | |
526 (defun select-convert-to-length (selection type value) | |
527 (let ((value | |
528 (cond ((stringp value) | |
529 (length value)) | |
530 ((extentp value) | |
531 (extent-length value)) | |
532 ((and (consp value) | |
533 (markerp (car value)) | |
534 (markerp (cdr value))) | |
535 (or (eq (marker-buffer (car value)) | |
536 (marker-buffer (cdr value))) | |
537 (signal 'error | |
538 (list "markers must be in the same buffer" | |
539 (car value) (cdr value)))) | |
540 (abs (- (car value) (cdr value))))))) | |
541 (if value ; force it to be in 32-bit format. | |
542 (cons (ash value -16) (logand value 65535)) | |
543 nil))) | |
544 | |
545 (defun select-convert-to-targets (selection type value) | |
546 ;; return a vector of atoms, but remove duplicates first. | |
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547 (delete-duplicates (map 'vector #'car selection-converter-out-alist))) |
428 | 548 |
549 (defun select-convert-to-delete (selection type value) | |
550 (disown-selection-internal selection) | |
551 ;; A return value of nil means that we do not know how to do this conversion, | |
552 ;; and replies with an "error". A return value of NULL means that we have | |
553 ;; done the conversion (and any side-effects) but have no value to return. | |
554 'NULL) | |
555 | |
556 (defun select-convert-to-filename (selection type value) | |
557 (cond ((extentp value) | |
558 (buffer-file-name (or (extent-object value) | |
559 (error "selection is in a killed buffer")))) | |
560 ((and (consp value) | |
561 (markerp (car value)) | |
562 (markerp (cdr value))) | |
563 (buffer-file-name (or (marker-buffer (car value)) | |
564 (error "selection is in a killed buffer")))) | |
565 (t nil))) | |
566 | |
567 (defun select-convert-to-charpos (selection type value) | |
568 (let (a b tmp) | |
569 (cond ((cond ((extentp value) | |
570 (setq a (extent-start-position value) | |
571 b (extent-end-position value))) | |
572 ((and (consp value) | |
573 (markerp (car value)) | |
574 (markerp (cdr value))) | |
575 (setq a (car value) | |
576 b (cdr value)))) | |
577 (setq a (1- a) b (1- b)) ; zero-based | |
578 (if (< b a) (setq tmp a a b b tmp)) | |
579 (cons 'SPAN | |
580 (vector (cons (ash a -16) (logand a 65535)) | |
581 (cons (ash b -16) (logand b 65535)))))))) | |
582 | |
583 (defun select-convert-to-lineno (selection type value) | |
584 (let (a b buf tmp) | |
585 (cond ((cond ((extentp value) | |
586 (setq buf (extent-object value) | |
587 a (extent-start-position value) | |
588 b (extent-end-position value))) | |
589 ((and (consp value) | |
590 (markerp (car value)) | |
591 (markerp (cdr value))) | |
592 (setq a (marker-position (car value)) | |
593 b (marker-position (cdr value)) | |
594 buf (marker-buffer (car value))))) | |
595 (save-excursion | |
596 (set-buffer buf) | |
597 (save-restriction | |
598 (widen) | |
599 (goto-char a) | |
600 (beginning-of-line) | |
601 (setq a (1+ (count-lines 1 (point)))) | |
602 (goto-char b) | |
603 (beginning-of-line) | |
604 (setq b (1+ (count-lines 1 (point)))))) | |
605 (if (< b a) (setq tmp a a b b tmp)) | |
606 (cons 'SPAN | |
607 (vector (cons (ash a -16) (logand a 65535)) | |
608 (cons (ash b -16) (logand b 65535)))))))) | |
609 | |
610 (defun select-convert-to-colno (selection type value) | |
611 (let (a b buf tmp) | |
612 (cond ((cond ((extentp value) | |
613 (setq buf (extent-object value) | |
614 a (extent-start-position value) | |
615 b (extent-end-position value))) | |
616 ((and (consp value) | |
617 (markerp (car value)) | |
618 (markerp (cdr value))) | |
619 (setq a (car value) | |
620 b (cdr value) | |
621 buf (marker-buffer a)))) | |
622 (save-excursion | |
623 (set-buffer buf) | |
624 (goto-char a) | |
625 (setq a (current-column)) | |
626 (goto-char b) | |
627 (setq b (current-column))) | |
628 (if (< b a) (setq tmp a a b b tmp)) | |
629 (cons 'SPAN | |
630 (vector (cons (ash a -16) (logand a 65535)) | |
631 (cons (ash b -16) (logand b 65535)))))))) | |
632 | |
633 (defun select-convert-to-sourceloc (selection type value) | |
634 (let (a b buf file-name tmp) | |
635 (cond ((cond ((extentp value) | |
636 (setq buf (or (extent-object value) | |
637 (error "selection is in a killed buffer")) | |
638 a (extent-start-position value) | |
639 b (extent-end-position value) | |
640 file-name (buffer-file-name buf))) | |
641 ((and (consp value) | |
642 (markerp (car value)) | |
643 (markerp (cdr value))) | |
644 (setq a (marker-position (car value)) | |
645 b (marker-position (cdr value)) | |
646 buf (or (marker-buffer (car value)) | |
647 (error "selection is in a killed buffer")) | |
648 file-name (buffer-file-name buf)))) | |
649 (save-excursion | |
650 (set-buffer buf) | |
651 (save-restriction | |
652 (widen) | |
653 (goto-char a) | |
654 (beginning-of-line) | |
655 (setq a (1+ (count-lines 1 (point)))) | |
656 (goto-char b) | |
657 (beginning-of-line) | |
658 (setq b (1+ (count-lines 1 (point)))))) | |
659 (if (< b a) (setq tmp a a b b tmp)) | |
660 (format "%s:%d" file-name a))))) | |
661 | |
662 (defun select-convert-to-os (selection type size) | |
663 (symbol-name system-type)) | |
664 | |
665 (defun select-convert-to-host (selection type size) | |
666 (system-name)) | |
667 | |
668 (defun select-convert-to-user (selection type size) | |
669 (user-full-name)) | |
670 | |
671 (defun select-convert-to-class (selection type size) | |
442 | 672 (symbol-value 'x-emacs-application-class)) |
428 | 673 |
674 ;; We do not try to determine the name Emacs was invoked with, | |
675 ;; because it is not clean for a program's behavior to depend on that. | |
676 (defun select-convert-to-name (selection type size) | |
677 ;invocation-name | |
678 "xemacs") | |
679 | |
680 (defun select-convert-to-integer (selection type value) | |
681 (and (integerp value) | |
682 (cons (ash value -16) (logand value 65535)))) | |
683 | |
442 | 684 ;; Can convert from the following integer representations |
685 ;; | |
686 ;; integer | |
687 ;; (integer . integer) | |
688 ;; (integer integer) | |
689 ;; (list [integer|(integer . integer)]*) | |
690 ;; (vector [integer|(integer . integer)]*) | |
691 ;; | |
692 ;; Cons'd integers get cleaned up a little. | |
693 | |
694 (defun select-convert-from-integer (selection type value) | |
695 (cond ((integerp value) ; Integer | |
696 value) | |
444 | 697 |
442 | 698 ((and (consp value) ; (integer . integer) |
699 (integerp (car value)) | |
700 (integerp (cdr value))) | |
701 (if (eq (car value) 0) | |
702 (cdr value) | |
703 (if (and (eq (car value) -1) | |
704 (< (cdr value) 0)) | |
705 (cdr value) | |
706 value))) | |
444 | 707 |
442 | 708 ((and (listp value) ; (integer integer) |
709 (eq (length value) 2) | |
710 (integerp (car value)) | |
711 (integerp (cadr value))) | |
712 (if (eq (car value) 0) | |
713 (cadr value) | |
714 (if (and (eq (car value) -1) | |
715 (< (cdr value) 0)) | |
716 (- (cadr value)) | |
717 (cons (car value) (cadr value))))) | |
444 | 718 |
442 | 719 ((listp value) ; list |
720 (if (cdr value) | |
4021 | 721 (mapcar #'(lambda (x) |
722 (select-convert-from-integer selection type x)) | |
442 | 723 value) |
724 (select-convert-from-integer selection type (car value)))) | |
444 | 725 |
442 | 726 ((vectorp value) ; vector |
727 (if (eq (length value) 1) | |
728 (select-convert-from-integer selection type (aref value 0)) | |
4021 | 729 (mapvector #'(lambda (x) |
730 (select-convert-from-integer selection type x)) | |
731 value))) | |
444 | 732 |
442 | 733 (t nil) |
734 )) | |
735 | |
2624 | 736 (defun select-convert-from-ip-address (selection type value) |
737 (if (and (stringp value) | |
738 (= (length value) 4)) | |
739 (format "%d.%d.%d.%d" | |
740 (aref value 0) (aref value 1) (aref value 2) (aref value 3)))) | |
741 | |
428 | 742 (defun select-convert-to-atom (selection type value) |
743 (and (symbolp value) value)) | |
744 | |
2624 | 745 (defun select-convert-from-utf-8-text (selection type value) |
746 (decode-coding-string value 'utf-8)) | |
747 | |
748 (defun select-convert-from-utf-16-le-text (selection type value) | |
749 (decode-coding-string value 'utf-16-le)) | |
750 | |
751 ;; Image conversion. | |
752 (defun select-convert-from-image-data (image-type value) | |
753 "Take an image type specification--one of the image types this XEmacs | |
754 supports--and some data in that format, return a space, with a glyph | |
755 corresponding to that data as an end-glyph extent property of that space. " | |
756 (let* ((str (make-string 1 ?\ )) | |
757 (extent (make-extent 0 1 str)) | |
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758 (glyph (make-glyph (vector image-type :data value)))) |
2624 | 759 (when glyph |
760 (set-extent-property extent 'invisible t) | |
761 (set-extent-property extent 'start-open t) | |
762 (set-extent-property extent 'end-open t) | |
763 (set-extent-property extent 'duplicable t) | |
764 (set-extent-property extent 'atomic t) | |
765 (set-extent-end-glyph extent glyph) | |
766 str))) | |
767 | |
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768 (macrolet |
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769 ((create-image-functions (&rest formats) |
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770 (cons |
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771 'progn |
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772 (mapcar |
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773 #'(lambda (format) |
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774 `(if (featurep ',format) |
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775 (defalias (intern (concat "select-convert-from-image/" |
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776 ,(symbol-name format))) |
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777 #'(lambda (selection type value) |
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778 (select-convert-from-image-data ',format |
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779 value))))) formats)))) |
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780 (create-image-functions gif jpeg png tiff xpm xbm)) |
2624 | 781 |
442 | 782 ;;; CF_xxx conversions |
783 (defun select-convert-from-cf-text (selection type value) | |
2624 | 784 (if (find-coding-system 'mswindows-multibyte) |
785 (let ((value (decode-coding-string value 'mswindows-multibyte))) | |
786 (replace-in-string (if (string-match "\0" value) | |
787 (substring value 0 (match-beginning 0)) | |
788 value) | |
789 "\\(\r\n\\|\n\r\\)" "\n" t)))) | |
771 | 790 |
791 (defun select-convert-from-cf-unicodetext (selection type value) | |
2624 | 792 (if (find-coding-system 'mswindows-unicode) |
793 (let ((value (decode-coding-string value 'mswindows-unicode))) | |
794 (replace-in-string (if (string-match "\0" value) | |
795 (substring value 0 (match-beginning 0)) | |
796 value) | |
797 "\\(\r\n\\|\n\r\\)" "\n" t)))) | |
442 | 798 |
799 (defun select-convert-to-cf-text (selection type value) | |
2624 | 800 (if (find-coding-system 'mswindows-multibyte) |
801 (let ((text (select-convert-to-text selection type value))) | |
802 (encode-coding-string | |
803 (concat (replace-in-string text "\n" "\r\n" t) "\0") | |
804 'mswindows-multibyte)))) | |
771 | 805 |
806 (defun select-convert-to-cf-unicodetext (selection type value) | |
2624 | 807 (if (find-coding-system 'mswindows-unicode) |
808 (let ((text (select-convert-to-text selection type value))) | |
809 (encode-coding-string | |
810 (concat (replace-in-string text "\n" "\r\n" t) "\0") | |
811 'mswindows-unicode)))) | |
442 | 812 |
813 ;;; Appenders | |
814 (defun select-append-to-text (selection type value1 value2) | |
815 (let ((text1 (select-convert-to-text selection 'STRING value1)) | |
816 (text2 (select-convert-to-text selection 'STRING value2))) | |
817 (if (and text1 text2) | |
818 (concat text1 text2) | |
819 nil))) | |
820 | |
821 (defun select-append-to-string (selection type value1 value2) | |
822 (select-append-to-text selection type value1 value2)) | |
823 | |
824 (defun select-append-to-compound-text (selection type value1 value2) | |
825 (select-append-to-text selection type value1 value2)) | |
826 | |
827 (defun select-append-to-cf-text (selection type value1 value2) | |
828 (let ((text1 (select-convert-from-cf-text selection 'CF_TEXT value1)) | |
829 (text2 (select-convert-from-cf-text selection 'CF_TEXT value2))) | |
830 (if (and text1 text2) | |
831 (select-convert-to-cf-text selection type (concat text1 text2)) | |
832 nil))) | |
428 | 833 |
771 | 834 (defun select-append-to-cf-unicodetext (selection type value1 value2) |
835 (let ((text1 (select-convert-from-cf-unicodetext selection | |
836 'CF_UNICODETEXT value1)) | |
837 (text2 (select-convert-from-cf-unicodetext selection | |
838 'CF_UNICODETEXT value2))) | |
839 (if (and text1 text2) | |
840 (select-convert-to-cf-unicodetext selection type (concat text1 text2)) | |
841 nil))) | |
842 | |
442 | 843 (defun select-append-default (selection type value1 value2) |
844 ;; This appender gets used if the type is "nil" - i.e. default. | |
845 ;; It should probably have more cases implemented than it does - e.g. | |
846 ;; appending numbers to strings, etc... | |
847 (cond ((and (stringp value1) (stringp value2)) | |
848 (select-append-to-string selection 'STRING value1 value2)) | |
849 (t nil))) | |
850 | |
851 ;;; Buffer kill handlers | |
852 | |
853 (defun select-buffer-killed-default (selection type value buffer) | |
854 ;; This handler gets used if the type is "nil". | |
855 (cond ((extentp value) | |
856 (if (eq (extent-object value) buffer) | |
857 ; If this selection is on the clipboard, grab it quick | |
858 (when (eq selection 'CLIPBOARD) | |
859 (save-excursion | |
860 (set-buffer (extent-object value)) | |
861 (save-restriction | |
862 (widen) | |
863 (buffer-substring (extent-start-position value) | |
864 (extent-end-position value))))) | |
865 value)) | |
866 ((markerp value) | |
867 (unless (eq (marker-buffer value) buffer) | |
868 value)) | |
869 ((and (consp value) | |
870 (markerp (car value)) | |
871 (markerp (cdr value))) | |
872 (if (or (eq (marker-buffer (car value)) buffer) | |
873 (eq (marker-buffer (cdr value)) buffer)) | |
874 ; If this selection is on the clipboard, grab it quick | |
875 (when (eq selection 'CLIPBOARD) | |
876 (save-excursion | |
877 (set-buffer (marker-buffer (car value))) | |
878 (save-restriction | |
879 (widen) | |
880 (buffer-substring (car value) (cdr value))))) | |
881 value)) | |
882 (t value))) | |
883 | |
884 (defun select-buffer-killed-text (selection type value buffer) | |
885 (select-buffer-killed-default selection type value buffer)) | |
444 | 886 |
442 | 887 ;; Types listed in here can be selections of XEmacs |
888 (setq selection-converter-out-alist | |
2624 | 889 '((TIMESTAMP . select-convert-to-timestamp) |
890 (UTF8_STRING . select-convert-to-utf-8-text) | |
891 (TEXT . select-convert-to-text) | |
428 | 892 (STRING . select-convert-to-string) |
893 (COMPOUND_TEXT . select-convert-to-compound-text) | |
894 (TARGETS . select-convert-to-targets) | |
895 (LENGTH . select-convert-to-length) | |
896 (DELETE . select-convert-to-delete) | |
897 (FILE_NAME . select-convert-to-filename) | |
898 (CHARACTER_POSITION . select-convert-to-charpos) | |
899 (SOURCE_LOC . select-convert-to-sourceloc) | |
900 (LINE_NUMBER . select-convert-to-lineno) | |
901 (COLUMN_NUMBER . select-convert-to-colno) | |
902 (OWNER_OS . select-convert-to-os) | |
903 (HOST_NAME . select-convert-to-host) | |
904 (USER . select-convert-to-user) | |
905 (CLASS . select-convert-to-class) | |
906 (NAME . select-convert-to-name) | |
907 (ATOM . select-convert-to-atom) | |
908 (INTEGER . select-convert-to-integer) | |
442 | 909 (CF_TEXT . select-convert-to-cf-text) |
771 | 910 (CF_UNICODETEXT . select-convert-to-cf-unicodetext) |
442 | 911 )) |
912 | |
913 ;; Types listed here can be selections foreign to XEmacs | |
914 (setq selection-converter-in-alist | |
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915 `(; Specific types that get handled by generic converters |
442 | 916 (INTEGER . select-convert-from-integer) |
2624 | 917 (TIMESTAMP . select-convert-from-integer) |
918 (LENGTH . select-convert-from-integer) | |
919 (LIST_LENGTH . select-convert-from-integer) | |
920 (CLIENT_WINDOW . select-convert-from-integer) | |
921 (PROCESS . select-convert-from-integer) | |
922 (IP_ADDRESS . select-convert-from-ip-address) | |
923 ;; We go after UTF8_STRING in preference to STRING because Mozilla, | |
924 ;; at least, does bad things with non-Latin-1 Unicode characters in | |
925 ;; STRING. | |
926 (UTF8_STRING . select-convert-from-utf-8-text) | |
442 | 927 (CF_TEXT . select-convert-from-cf-text) |
771 | 928 (CF_UNICODETEXT . select-convert-from-cf-unicodetext) |
2624 | 929 (text/html . select-convert-from-utf-16-le-text) ; Mozilla |
930 (text/_moz_htmlcontext . select-convert-from-utf-16-le-text) | |
931 (text/_moz_htmlinfo . select-convert-from-utf-16-le-text) | |
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932 ,@(loop |
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933 for format in '(gif jpeg png tiff xpm xbm) |
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934 nconc (if (featurep format) |
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935 (list (cons (intern (format "image/%s" format)) |
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936 (intern (format "select-convert-from-image/%s" |
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937 format)))))))) |
428 | 938 |
442 | 939 ;; Types listed here have special coercion functions that can munge |
940 ;; other types. This can also be used to add special features - e.g. | |
941 ;; being able to pass a region or a cons of markers to own-selection, | |
942 ;; but getting the *current* text in the region back when calling | |
943 ;; get-selection. | |
944 ;; | |
945 ;; Any function listed in here *will be called* whenever a value of | |
946 ;; its type is retrieved from the internal selection cache, or when | |
947 ;; no suitable values could be found in which case XEmacs looks for | |
948 ;; values with types listed in selection-coercible-types. | |
949 (setq selection-coercion-alist | |
950 '((TEXT . select-coerce-to-text) | |
951 (STRING . select-coerce-to-text) | |
952 (COMPOUND_TEXT . select-coerce-to-text) | |
771 | 953 (CF_TEXT . select-coerce-to-text) |
954 (CF_UNICODETEXT . select-coerce-to-text) | |
955 )) | |
442 | 956 |
957 ;; Types listed here can be appended by own-selection | |
958 (setq selection-appender-alist | |
959 '((nil . select-append-default) | |
960 (TEXT . select-append-to-text) | |
961 (STRING . select-append-to-string) | |
962 (COMPOUND_TEXT . select-append-to-compound-text) | |
963 (CF_TEXT . select-append-to-cf-text) | |
771 | 964 (CF_UNICODETEXT . select-append-to-cf-unicodetext) |
442 | 965 )) |
966 | |
967 ;; Types listed here have buffer-kill handlers | |
968 (setq selection-buffer-killed-alist | |
969 '((nil . select-buffer-killed-default) | |
970 (TEXT . select-buffer-killed-text) | |
971 (STRING . select-buffer-killed-text) | |
972 (COMPOUND_TEXT . select-buffer-killed-text) | |
771 | 973 (CF_TEXT . select-buffer-killed-text) |
974 (CF_UNICODETEXT . select-buffer-killed-text) | |
975 )) | |
442 | 976 |
977 ;; Lists of types that are coercible (can be converted to other types) | |
771 | 978 (setq selection-coercible-types '(TEXT STRING COMPOUND_TEXT CF_TEXT CF_UNICODETEXT)) |
442 | 979 |
428 | 980 ;;; select.el ends here |