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b50c87ee KH |
1 | ;;; pc-select.el --- emulate mark, cut, copy and paste from Motif |
2 | ;;; (or MAC GUI or MS-windoze (bah)) look-and-feel | |
3 | ;;; including key bindings. | |
215e89e5 | 4 | |
5fd6d89f | 5 | ;; Copyright (C) 1995, 1996, 1997, 2000, 2001, 2002, 2003, 2004, |
8b72699e | 6 | ;; 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
215e89e5 RS |
7 | |
8 | ;; Author: Michael Staats <michael@thp.Uni-Duisburg.DE> | |
de986953 | 9 | ;; Keywords: convenience emulation |
215e89e5 RS |
10 | ;; Created: 26 Sep 1995 |
11 | ||
12 | ;; This file is part of GNU Emacs. | |
13 | ||
14 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
15 | ;; it under the terms of the GNU General Public License as published by | |
e0085d62 | 16 | ;; the Free Software Foundation; either version 3, or (at your option) |
215e89e5 RS |
17 | ;; any later version. |
18 | ||
19 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
20 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | ;; GNU General Public License for more details. | |
23 | ||
24 | ;; You should have received a copy of the GNU General Public License | |
b578f267 | 25 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
3a35cf56 LK |
26 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
27 | ;; Boston, MA 02110-1301, USA. | |
215e89e5 RS |
28 | |
29 | ;;; Commentary: | |
b578f267 | 30 | |
215e89e5 RS |
31 | ;; This package emulates the mark, copy, cut and paste look-and-feel of motif |
32 | ;; programs (which is the same as the MAC gui and (sorry for that) MS-Windows). | |
33 | ;; It modifies the keybindings of the cursor keys and the next, prior, | |
34 | ;; home and end keys. They will modify mark-active. | |
35 | ;; You can still get the old behaviour of cursor moving with the | |
36 | ;; control sequences C-f, C-b, etc. | |
37 | ;; This package uses transient-mark-mode and | |
38 | ;; delete-selection-mode. | |
39 | ;; | |
13f5a20e | 40 | ;; In addition to that all key-bindings from the pc-mode are |
215e89e5 RS |
41 | ;; done here too (as suggested by RMS). |
42 | ;; | |
43 | ;; As I found out after I finished the first version, s-region.el tries | |
44 | ;; to do the same.... But my code is a little more complete and using | |
45 | ;; delete-selection-mode is very important for the look-and-feel. | |
46 | ;; Pete Forman <pete.forman@airgun.wg.waii.com> provided some motif | |
47 | ;; compliant keybindings which I added. I had to modify them a little | |
48 | ;; to add the -mark and -nomark functionality of cursor moving. | |
49 | ;; | |
50 | ;; Credits: | |
51 | ;; Many thanks to all who made comments. | |
52 | ;; Thanks to RMS and Ralf Muschall <prm@rz.uni-jena.de> for criticism. | |
53 | ;; Kevin Cutts <cutts@ukraine.corp.mot.com> added the beginning-of-buffer | |
54 | ;; and end-of-buffer functions which I modified a little. | |
55 | ;; David Biesack <sasdjb@unx.sas.com> suggested some more cleanup. | |
56 | ;; Thanks to Pete Forman <pete.forman@airgun.wg.waii.com> | |
57 | ;; for additional motif keybindings. | |
14dacacd RS |
58 | ;; Thanks to jvromans@squirrel.nl (Johan Vromans) for a bug report |
59 | ;; concerning setting of this-command. | |
83d1d58c | 60 | ;; Dan Nicolaescu <done@ece.arizona.ro> suggested suppressing the |
20c5a87d | 61 | ;; scroll-up/scroll-down error. |
b50c87ee | 62 | ;; Eli Barzilay (eli@cs.bgu.ac.il) suggested the sexps functions and |
13f5a20e | 63 | ;; keybindings. |
215e89e5 | 64 | ;; |
e873bbf9 | 65 | ;; Ok, some details about the idea of PC Selection mode: |
215e89e5 RS |
66 | ;; |
67 | ;; o The standard keys for moving around (right, left, up, down, home, end, | |
68 | ;; prior, next, called "move-keys" from now on) will always de-activate | |
69 | ;; the mark. | |
70 | ;; o If you press "Shift" together with the "move-keys", the region | |
71 | ;; you pass along is activated | |
72 | ;; o You have the copy, cut and paste functions (as in many other programs) | |
73 | ;; which will operate on the active region | |
74 | ;; It was not possible to bind them to C-v, C-x and C-c for obvious | |
75 | ;; emacs reasons. | |
76 | ;; They will be bound according to the "old" behaviour to S-delete (cut), | |
77 | ;; S-insert (paste) and C-insert (copy). These keys do the same in many | |
78 | ;; other programs. | |
20c5a87d | 79 | ;; |
215e89e5 | 80 | |
e8af40ee PJ |
81 | ;;; Code: |
82 | ||
fd4e5923 | 83 | ;; Customization: |
83d1d58c RS |
84 | (defgroup pc-select nil |
85 | "Emulate pc bindings." | |
86 | :prefix "pc-select" | |
f5f727f8 DN |
87 | :group 'editing-basics |
88 | :group 'convenience) | |
20c5a87d | 89 | |
83d1d58c | 90 | (defcustom pc-select-override-scroll-error t |
20c5a87d RS |
91 | "*Non-nil means don't generate error on scrolling past edge of buffer. |
92 | This variable applies in PC Selection mode only. | |
93 | The scroll commands normally generate an error if you try to scroll | |
94 | past the top or bottom of the buffer. This is annoying when selecting | |
95 | text with these commands. If you set this variable to non-nil, these | |
83d1d58c RS |
96 | errors are suppressed." |
97 | :type 'boolean | |
98 | :group 'pc-select) | |
215e89e5 | 99 | |
83d1d58c | 100 | (defcustom pc-select-selection-keys-only nil |
b50c87ee KH |
101 | "*Non-nil means only bind the basic selection keys when started. |
102 | Other keys that emulate pc-behavior will be untouched. | |
ca088b04 | 103 | This gives mostly Emacs-like behavior with only the selection keys enabled." |
83d1d58c RS |
104 | :type 'boolean |
105 | :group 'pc-select) | |
b50c87ee | 106 | |
83d1d58c RS |
107 | (defcustom pc-select-meta-moves-sexps nil |
108 | "*Non-nil means move sexp-wise with Meta key, otherwise move word-wise." | |
109 | :type 'boolean | |
110 | :group 'pc-select) | |
b50c87ee | 111 | |
cb96f094 RS |
112 | (defcustom pc-selection-mode-hook nil |
113 | "The hook to run when pc-selection-mode is toggled." | |
114 | :type 'hook | |
115 | :group 'pc-select) | |
116 | ||
117 | (defvar pc-select-saved-settings-alist nil | |
e873bbf9 RS |
118 | "The values of the variables before PC Selection mode was toggled on. |
119 | When PC Selection mode is toggled on, it sets quite a few variables | |
cb96f094 | 120 | for its own purposes. This alist holds the original values of the |
e873bbf9 RS |
121 | variables PC Selection mode had set, so that these variables can be |
122 | restored to their original values when PC Selection mode is toggled off.") | |
cb96f094 RS |
123 | |
124 | (defvar pc-select-map nil | |
e873bbf9 | 125 | "The keymap used as the global map when PC Selection mode is on." ) |
cb96f094 RS |
126 | |
127 | (defvar pc-select-saved-global-map nil | |
e873bbf9 | 128 | "The global map that was in effect when PC Selection mode was toggled on.") |
cb96f094 RS |
129 | |
130 | (defvar pc-select-key-bindings-alist nil | |
e873bbf9 | 131 | "This alist holds all the key bindings PC Selection mode sets.") |
cb96f094 RS |
132 | |
133 | (defvar pc-select-default-key-bindings nil | |
e873bbf9 | 134 | "These key bindings always get set by PC Selection mode.") |
cb96f094 RS |
135 | |
136 | (unless pc-select-default-key-bindings | |
137 | (let ((lst | |
de299ed7 SM |
138 | ;; This is to avoid confusion with the delete-selection-mode. |
139 | ;; On simple displays you can't see that a region is active and | |
cb96f094 RS |
140 | ;; will be deleted on the next keypress IMHO especially for |
141 | ;; copy-region-as-kill this is confusing. | |
142 | ;; The same goes for exchange-point-and-mark | |
143 | '(("\M-w" . copy-region-as-kill-nomark) | |
144 | ("\C-x\C-x" . exchange-point-and-mark-nomark) | |
145 | ([S-right] . forward-char-mark) | |
146 | ([right] . forward-char-nomark) | |
147 | ([C-S-right] . forward-word-mark) | |
148 | ([C-right] . forward-word-nomark) | |
149 | ([S-left] . backward-char-mark) | |
150 | ([left] . backward-char-nomark) | |
151 | ([C-S-left] . backward-word-mark) | |
152 | ([C-left] . backward-word-nomark) | |
153 | ([S-down] . next-line-mark) | |
154 | ([down] . next-line-nomark) | |
155 | ||
156 | ([S-end] . end-of-line-mark) | |
157 | ([end] . end-of-line-nomark) | |
158 | ([S-C-end] . end-of-buffer-mark) | |
159 | ([C-end] . end-of-buffer-nomark) | |
160 | ([S-M-end] . end-of-buffer-mark) | |
161 | ([M-end] . end-of-buffer-nomark) | |
162 | ||
163 | ([S-next] . scroll-up-mark) | |
164 | ([next] . scroll-up-nomark) | |
165 | ||
166 | ([S-up] . previous-line-mark) | |
167 | ([up] . previous-line-nomark) | |
168 | ||
169 | ([S-home] . beginning-of-line-mark) | |
170 | ([home] . beginning-of-line-nomark) | |
171 | ([S-C-home] . beginning-of-buffer-mark) | |
172 | ([C-home] . beginning-of-buffer-nomark) | |
173 | ([S-M-home] . beginning-of-buffer-mark) | |
174 | ([M-home] . beginning-of-buffer-nomark) | |
175 | ||
176 | ([M-S-down] . forward-line-mark) | |
177 | ([M-down] . forward-line-nomark) | |
178 | ([M-S-up] . backward-line-mark) | |
179 | ([M-up] . backward-line-nomark) | |
180 | ||
181 | ([S-prior] . scroll-down-mark) | |
182 | ([prior] . scroll-down-nomark) | |
183 | ||
184 | ;; Next four lines are from Pete Forman. | |
de299ed7 | 185 | ([C-down] . forward-paragraph-nomark) ; KNextPara cDn |
cb96f094 RS |
186 | ([C-up] . backward-paragraph-nomark) ; KPrevPara cUp |
187 | ([S-C-down] . forward-paragraph-mark) | |
188 | ([S-C-up] . backward-paragraph-mark)))) | |
a1506d29 | 189 | |
cb96f094 RS |
190 | (setq pc-select-default-key-bindings lst))) |
191 | ||
192 | (defvar pc-select-extra-key-bindings nil | |
193 | "Key bindings to set only if `pc-select-selection-keys-only' is nil.") | |
194 | ||
195 | ;; The following keybindings are for standard ISO keyboards | |
196 | ;; as they are used with IBM compatible PCs, IBM RS/6000, | |
197 | ;; MACs, many X-Stations and probably more | |
198 | (unless pc-select-extra-key-bindings | |
199 | (let ((lst | |
200 | '(([S-insert] . yank) | |
201 | ([C-insert] . copy-region-as-kill) | |
202 | ([S-delete] . kill-region) | |
203 | ||
204 | ;; The following bindings are useful on Sun Type 3 keyboards | |
205 | ;; They implement the Get-Delete-Put (copy-cut-paste) | |
206 | ;; functions from sunview on the L6, L8 and L10 keys | |
207 | ;; Sam Steingold <sds@gnu.org> says that f16 is copy and f18 is paste. | |
208 | ([f16] . copy-region-as-kill) | |
209 | ([f18] . yank) | |
210 | ([f20] . kill-region) | |
211 | ||
212 | ;; The following bindings are from Pete Forman. | |
213 | ([f6] . other-window) ; KNextPane F6 | |
214 | ([C-delete] . kill-line) ; KEraseEndLine cDel | |
215 | ("\M-\d" . undo) ; KUndo aBS | |
216 | ||
217 | ;; The following binding is taken from pc-mode.el | |
218 | ;; as suggested by RMS. | |
219 | ;; I only used the one that is not covered above. | |
220 | ([C-M-delete] . kill-sexp) | |
221 | ;; Next line proposed by Eli Barzilay | |
222 | ([C-escape] . electric-buffer-list)))) | |
a1506d29 | 223 | |
cb96f094 RS |
224 | (setq pc-select-extra-key-bindings lst))) |
225 | ||
226 | (defvar pc-select-meta-moves-sexps-key-bindings | |
227 | '((([M-S-right] . forward-sexp-mark) | |
228 | ([M-right] . forward-sexp-nomark) | |
229 | ([M-S-left] . backward-sexp-mark) | |
230 | ([M-left] . backward-sexp-nomark)) | |
231 | (([M-S-right] . forward-word-mark) | |
232 | ([M-right] . forward-word-nomark) | |
233 | ([M-S-left] . backward-word-mark) | |
234 | ([M-left] . backward-word-nomark))) | |
235 | "The list of key bindings controlled by `pc-select-meta-moves-sexp'. | |
236 | The bindings in the car of this list get installed if | |
237 | `pc-select-meta-moves-sexp' is t, the bindings in the cadr of this | |
238 | list get installed otherwise.") | |
239 | ||
240 | ;; This is for tty. We don't turn on normal-erase-is-backspace, | |
241 | ;; but bind keys as pc-selection-mode did before | |
242 | ;; normal-erase-is-backspace was invented, to keep us back | |
243 | ;; compatible. | |
244 | (defvar pc-select-tty-key-bindings | |
245 | '(([delete] . delete-char) ; KDelete Del | |
246 | ([C-backspace] . backward-kill-word)) | |
247 | "The list of key bindings controlled by `pc-select-selection-keys-only'. | |
248 | These key bindings get installed when running in a tty, but only if | |
249 | `pc-select-selection-keys-only' is nil.") | |
250 | ||
251 | (defvar pc-select-old-M-delete-binding nil | |
252 | "Holds the old mapping of [M-delete] in the `function-key-map'. | |
253 | This variable holds the value associated with [M-delete] in the | |
e873bbf9 | 254 | `function-key-map' before PC Selection mode had changed that |
cb96f094 RS |
255 | association.") |
256 | ||
215e89e5 RS |
257 | ;;;; |
258 | ;; misc | |
259 | ;;;; | |
260 | ||
261 | (provide 'pc-select) | |
262 | ||
263 | (defun copy-region-as-kill-nomark (beg end) | |
264 | "Save the region as if killed; but don't kill it; deactivate mark. | |
265 | If `interprogram-cut-function' is non-nil, also save the text for a window | |
20c5a87d RS |
266 | system cut and paste. |
267 | ||
fd4e5923 SM |
268 | Deactivating mark is to avoid confusion with `delete-selection-mode' |
269 | and `transient-mark-mode'." | |
215e89e5 RS |
270 | (interactive "r") |
271 | (copy-region-as-kill beg end) | |
272 | (setq mark-active nil) | |
273 | (message "Region saved")) | |
274 | ||
b50c87ee | 275 | (defun exchange-point-and-mark-nomark () |
fd4e5923 | 276 | "Like `exchange-point-and-mark' but without activating the mark." |
b50c87ee KH |
277 | (interactive) |
278 | (exchange-point-and-mark) | |
279 | (setq mark-active nil)) | |
280 | ||
215e89e5 RS |
281 | ;;;; |
282 | ;; non-interactive | |
283 | ;;;; | |
e85c6b7c | 284 | (defun pc-select-ensure-mark () |
215e89e5 RS |
285 | ;; make sure mark is active |
286 | ;; test if it is active, if it isn't, set it and activate it | |
de299ed7 | 287 | (or mark-active (set-mark-command nil)) |
e85c6b7c SM |
288 | ;; Remember who activated the mark. |
289 | (setq mark-active 'pc-select)) | |
de299ed7 | 290 | |
e85c6b7c | 291 | (defun pc-select-maybe-deactivate-mark () |
de299ed7 | 292 | ;; maybe switch off mark (only if *we* switched it on) |
e85c6b7c SM |
293 | (when (eq mark-active 'pc-select) |
294 | (deactivate-mark))) | |
215e89e5 RS |
295 | |
296 | ;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
297 | ;;;;; forward and mark | |
298 | ;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
299 | ||
300 | (defun forward-char-mark (&optional arg) | |
301 | "Ensure mark is active; move point right ARG characters (left if ARG negative). | |
302 | On reaching end of buffer, stop and signal error." | |
303 | (interactive "p") | |
e85c6b7c | 304 | (pc-select-ensure-mark) |
215e89e5 RS |
305 | (forward-char arg)) |
306 | ||
307 | (defun forward-word-mark (&optional arg) | |
308 | "Ensure mark is active; move point right ARG words (backward if ARG is negative). | |
309 | Normally returns t. | |
310 | If an edge of the buffer is reached, point is left there | |
311 | and nil is returned." | |
312 | (interactive "p") | |
e85c6b7c | 313 | (pc-select-ensure-mark) |
215e89e5 RS |
314 | (forward-word arg)) |
315 | ||
20c5a87d RS |
316 | (defun forward-line-mark (&optional arg) |
317 | "Ensure mark is active; move cursor vertically down ARG lines." | |
318 | (interactive "p") | |
e85c6b7c | 319 | (pc-select-ensure-mark) |
20c5a87d RS |
320 | (forward-line arg) |
321 | (setq this-command 'forward-line) | |
322 | ) | |
323 | ||
b50c87ee KH |
324 | (defun forward-sexp-mark (&optional arg) |
325 | "Ensure mark is active; move forward across one balanced expression (sexp). | |
326 | With argument, do it that many times. Negative arg -N means | |
327 | move backward across N balanced expressions." | |
328 | (interactive "p") | |
e85c6b7c | 329 | (pc-select-ensure-mark) |
b50c87ee KH |
330 | (forward-sexp arg)) |
331 | ||
215e89e5 RS |
332 | (defun forward-paragraph-mark (&optional arg) |
333 | "Ensure mark is active; move forward to end of paragraph. | |
20c5a87d RS |
334 | With arg N, do it N times; negative arg -N means move backward N paragraphs. |
335 | ||
215e89e5 | 336 | A line which `paragraph-start' matches either separates paragraphs |
14dacacd | 337 | \(if `paragraph-separate' matches it also) or is the first line of a paragraph. |
215e89e5 RS |
338 | A paragraph end is the beginning of a line which is not part of the paragraph |
339 | to which the end of the previous line belongs, or the end of the buffer." | |
340 | (interactive "p") | |
e85c6b7c | 341 | (pc-select-ensure-mark) |
215e89e5 | 342 | (forward-paragraph arg)) |
20c5a87d | 343 | |
215e89e5 RS |
344 | (defun next-line-mark (&optional arg) |
345 | "Ensure mark is active; move cursor vertically down ARG lines. | |
346 | If there is no character in the target line exactly under the current column, | |
347 | the cursor is positioned after the character in that line which spans this | |
348 | column, or at the end of the line if it is not long enough. | |
349 | If there is no line in the buffer after this one, behavior depends on the | |
350 | value of `next-line-add-newlines'. If non-nil, it inserts a newline character | |
351 | to create a line, and moves the cursor to that line. Otherwise it moves the | |
352 | cursor to the end of the buffer \(if already at the end of the buffer, an error | |
20c5a87d RS |
353 | is signaled). |
354 | ||
fd4e5923 | 355 | The command \\[set-goal-column] can be used to create |
215e89e5 RS |
356 | a semipermanent goal column to which this command always moves. |
357 | Then it does not try to move vertically. This goal column is stored | |
358 | in `goal-column', which is nil when there is none." | |
359 | (interactive "p") | |
e85c6b7c | 360 | (pc-select-ensure-mark) |
3fe5c37a | 361 | (with-no-warnings (next-line arg)) |
14dacacd | 362 | (setq this-command 'next-line)) |
215e89e5 RS |
363 | |
364 | (defun end-of-line-mark (&optional arg) | |
365 | "Ensure mark is active; move point to end of current line. | |
366 | With argument ARG not nil or 1, move forward ARG - 1 lines first. | |
367 | If scan reaches end of buffer, stop there without error." | |
368 | (interactive "p") | |
e85c6b7c | 369 | (pc-select-ensure-mark) |
14dacacd RS |
370 | (end-of-line arg) |
371 | (setq this-command 'end-of-line)) | |
215e89e5 | 372 | |
20c5a87d RS |
373 | (defun backward-line-mark (&optional arg) |
374 | "Ensure mark is active; move cursor vertically up ARG lines." | |
375 | (interactive "p") | |
e85c6b7c | 376 | (pc-select-ensure-mark) |
20c5a87d RS |
377 | (if (null arg) |
378 | (setq arg 1)) | |
379 | (forward-line (- arg)) | |
380 | (setq this-command 'forward-line) | |
381 | ) | |
382 | ||
215e89e5 RS |
383 | (defun scroll-down-mark (&optional arg) |
384 | "Ensure mark is active; scroll down ARG lines; or near full screen if no ARG. | |
385 | A near full screen is `next-screen-context-lines' less than a full screen. | |
386 | Negative ARG means scroll upward. | |
387 | When calling from a program, supply a number as argument or nil." | |
13f5a20e | 388 | (interactive "P") |
e85c6b7c | 389 | (pc-select-ensure-mark) |
2a811501 RS |
390 | (cond (pc-select-override-scroll-error |
391 | (condition-case nil (scroll-down arg) | |
392 | (beginning-of-buffer (goto-char (point-min))))) | |
393 | (t (scroll-down arg)))) | |
215e89e5 RS |
394 | |
395 | (defun end-of-buffer-mark (&optional arg) | |
396 | "Ensure mark is active; move point to the end of the buffer. | |
20c5a87d RS |
397 | With arg N, put point N/10 of the way from the end. |
398 | ||
215e89e5 | 399 | If the buffer is narrowed, this command uses the beginning and size |
20c5a87d RS |
400 | of the accessible part of the buffer. |
401 | ||
215e89e5 RS |
402 | Don't use this command in Lisp programs! |
403 | \(goto-char \(point-max)) is faster and avoids clobbering the mark." | |
404 | (interactive "P") | |
e85c6b7c | 405 | (pc-select-ensure-mark) |
215e89e5 RS |
406 | (let ((size (- (point-max) (point-min)))) |
407 | (goto-char (if arg | |
408 | (- (point-max) | |
409 | (if (> size 10000) | |
410 | ;; Avoid overflow for large buffer sizes! | |
411 | (* (prefix-numeric-value arg) | |
412 | (/ size 10)) | |
413 | (/ (* size (prefix-numeric-value arg)) 10))) | |
414 | (point-max)))) | |
415 | ;; If we went to a place in the middle of the buffer, | |
416 | ;; adjust it to the beginning of a line. | |
417 | (if arg (forward-line 1) | |
418 | ;; If the end of the buffer is not already on the screen, | |
419 | ;; then scroll specially to put it near, but not at, the bottom. | |
420 | (if (let ((old-point (point))) | |
421 | (save-excursion | |
422 | (goto-char (window-start)) | |
423 | (vertical-motion (window-height)) | |
424 | (< (point) old-point))) | |
425 | (progn | |
426 | (overlay-recenter (point)) | |
427 | (recenter -3))))) | |
428 | ||
429 | ;;;;;;;;; | |
430 | ;;;;; no mark | |
431 | ;;;;;;;;; | |
432 | ||
433 | (defun forward-char-nomark (&optional arg) | |
434 | "Deactivate mark; move point right ARG characters \(left if ARG negative). | |
435 | On reaching end of buffer, stop and signal error." | |
436 | (interactive "p") | |
e85c6b7c | 437 | (pc-select-maybe-deactivate-mark) |
215e89e5 RS |
438 | (forward-char arg)) |
439 | ||
440 | (defun forward-word-nomark (&optional arg) | |
441 | "Deactivate mark; move point right ARG words \(backward if ARG is negative). | |
442 | Normally returns t. | |
443 | If an edge of the buffer is reached, point is left there | |
444 | and nil is returned." | |
445 | (interactive "p") | |
e85c6b7c | 446 | (pc-select-maybe-deactivate-mark) |
215e89e5 RS |
447 | (forward-word arg)) |
448 | ||
20c5a87d RS |
449 | (defun forward-line-nomark (&optional arg) |
450 | "Deactivate mark; move cursor vertically down ARG lines." | |
451 | (interactive "p") | |
e85c6b7c | 452 | (pc-select-maybe-deactivate-mark) |
20c5a87d RS |
453 | (forward-line arg) |
454 | (setq this-command 'forward-line) | |
455 | ) | |
456 | ||
b50c87ee KH |
457 | (defun forward-sexp-nomark (&optional arg) |
458 | "Deactivate mark; move forward across one balanced expression (sexp). | |
459 | With argument, do it that many times. Negative arg -N means | |
460 | move backward across N balanced expressions." | |
461 | (interactive "p") | |
e85c6b7c | 462 | (pc-select-maybe-deactivate-mark) |
b50c87ee KH |
463 | (forward-sexp arg)) |
464 | ||
215e89e5 RS |
465 | (defun forward-paragraph-nomark (&optional arg) |
466 | "Deactivate mark; move forward to end of paragraph. | |
20c5a87d RS |
467 | With arg N, do it N times; negative arg -N means move backward N paragraphs. |
468 | ||
215e89e5 | 469 | A line which `paragraph-start' matches either separates paragraphs |
14dacacd | 470 | \(if `paragraph-separate' matches it also) or is the first line of a paragraph. |
215e89e5 RS |
471 | A paragraph end is the beginning of a line which is not part of the paragraph |
472 | to which the end of the previous line belongs, or the end of the buffer." | |
473 | (interactive "p") | |
e85c6b7c | 474 | (pc-select-maybe-deactivate-mark) |
215e89e5 RS |
475 | (forward-paragraph arg)) |
476 | ||
477 | (defun next-line-nomark (&optional arg) | |
478 | "Deactivate mark; move cursor vertically down ARG lines. | |
479 | If there is no character in the target line exactly under the current column, | |
480 | the cursor is positioned after the character in that line which spans this | |
481 | column, or at the end of the line if it is not long enough. | |
482 | If there is no line in the buffer after this one, behavior depends on the | |
483 | value of `next-line-add-newlines'. If non-nil, it inserts a newline character | |
484 | to create a line, and moves the cursor to that line. Otherwise it moves the | |
485 | cursor to the end of the buffer (if already at the end of the buffer, an error | |
20c5a87d RS |
486 | is signaled). |
487 | ||
fd4e5923 | 488 | The command \\[set-goal-column] can be used to create |
215e89e5 RS |
489 | a semipermanent goal column to which this command always moves. |
490 | Then it does not try to move vertically. This goal column is stored | |
491 | in `goal-column', which is nil when there is none." | |
492 | (interactive "p") | |
e85c6b7c | 493 | (pc-select-maybe-deactivate-mark) |
3fe5c37a | 494 | (with-no-warnings (next-line arg)) |
14dacacd | 495 | (setq this-command 'next-line)) |
215e89e5 RS |
496 | |
497 | (defun end-of-line-nomark (&optional arg) | |
498 | "Deactivate mark; move point to end of current line. | |
499 | With argument ARG not nil or 1, move forward ARG - 1 lines first. | |
500 | If scan reaches end of buffer, stop there without error." | |
501 | (interactive "p") | |
e85c6b7c | 502 | (pc-select-maybe-deactivate-mark) |
14dacacd RS |
503 | (end-of-line arg) |
504 | (setq this-command 'end-of-line)) | |
215e89e5 | 505 | |
20c5a87d RS |
506 | (defun backward-line-nomark (&optional arg) |
507 | "Deactivate mark; move cursor vertically up ARG lines." | |
508 | (interactive "p") | |
e85c6b7c | 509 | (pc-select-maybe-deactivate-mark) |
20c5a87d RS |
510 | (if (null arg) |
511 | (setq arg 1)) | |
512 | (forward-line (- arg)) | |
513 | (setq this-command 'forward-line) | |
514 | ) | |
515 | ||
215e89e5 RS |
516 | (defun scroll-down-nomark (&optional arg) |
517 | "Deactivate mark; scroll down ARG lines; or near full screen if no ARG. | |
518 | A near full screen is `next-screen-context-lines' less than a full screen. | |
519 | Negative ARG means scroll upward. | |
520 | When calling from a program, supply a number as argument or nil." | |
521 | (interactive "P") | |
e85c6b7c | 522 | (pc-select-maybe-deactivate-mark) |
2a811501 RS |
523 | (cond (pc-select-override-scroll-error |
524 | (condition-case nil (scroll-down arg) | |
525 | (beginning-of-buffer (goto-char (point-min))))) | |
526 | (t (scroll-down arg)))) | |
215e89e5 RS |
527 | |
528 | (defun end-of-buffer-nomark (&optional arg) | |
529 | "Deactivate mark; move point to the end of the buffer. | |
20c5a87d RS |
530 | With arg N, put point N/10 of the way from the end. |
531 | ||
215e89e5 | 532 | If the buffer is narrowed, this command uses the beginning and size |
20c5a87d RS |
533 | of the accessible part of the buffer. |
534 | ||
215e89e5 | 535 | Don't use this command in Lisp programs! |
14dacacd | 536 | \(goto-char (point-max)) is faster and avoids clobbering the mark." |
215e89e5 | 537 | (interactive "P") |
e85c6b7c | 538 | (pc-select-maybe-deactivate-mark) |
215e89e5 RS |
539 | (let ((size (- (point-max) (point-min)))) |
540 | (goto-char (if arg | |
541 | (- (point-max) | |
542 | (if (> size 10000) | |
543 | ;; Avoid overflow for large buffer sizes! | |
544 | (* (prefix-numeric-value arg) | |
545 | (/ size 10)) | |
546 | (/ (* size (prefix-numeric-value arg)) 10))) | |
547 | (point-max)))) | |
548 | ;; If we went to a place in the middle of the buffer, | |
549 | ;; adjust it to the beginning of a line. | |
550 | (if arg (forward-line 1) | |
551 | ;; If the end of the buffer is not already on the screen, | |
552 | ;; then scroll specially to put it near, but not at, the bottom. | |
553 | (if (let ((old-point (point))) | |
554 | (save-excursion | |
555 | (goto-char (window-start)) | |
556 | (vertical-motion (window-height)) | |
557 | (< (point) old-point))) | |
558 | (progn | |
559 | (overlay-recenter (point)) | |
560 | (recenter -3))))) | |
561 | ||
562 | ||
563 | ;;;;;;;;;;;;;;;;;;;; | |
564 | ;;;;;; backwards and mark | |
565 | ;;;;;;;;;;;;;;;;;;;; | |
566 | ||
567 | (defun backward-char-mark (&optional arg) | |
568 | "Ensure mark is active; move point left ARG characters (right if ARG negative). | |
569 | On attempt to pass beginning or end of buffer, stop and signal error." | |
570 | (interactive "p") | |
e85c6b7c | 571 | (pc-select-ensure-mark) |
215e89e5 RS |
572 | (backward-char arg)) |
573 | ||
574 | (defun backward-word-mark (&optional arg) | |
575 | "Ensure mark is active; move backward until encountering the end of a word. | |
576 | With argument, do this that many times." | |
577 | (interactive "p") | |
e85c6b7c | 578 | (pc-select-ensure-mark) |
215e89e5 RS |
579 | (backward-word arg)) |
580 | ||
b50c87ee KH |
581 | (defun backward-sexp-mark (&optional arg) |
582 | "Ensure mark is active; move backward across one balanced expression (sexp). | |
583 | With argument, do it that many times. Negative arg -N means | |
584 | move forward across N balanced expressions." | |
585 | (interactive "p") | |
e85c6b7c | 586 | (pc-select-ensure-mark) |
b50c87ee KH |
587 | (backward-sexp arg)) |
588 | ||
215e89e5 RS |
589 | (defun backward-paragraph-mark (&optional arg) |
590 | "Ensure mark is active; move backward to start of paragraph. | |
20c5a87d RS |
591 | With arg N, do it N times; negative arg -N means move forward N paragraphs. |
592 | ||
215e89e5 RS |
593 | A paragraph start is the beginning of a line which is a |
594 | `first-line-of-paragraph' or which is ordinary text and follows a | |
595 | paragraph-separating line; except: if the first real line of a | |
596 | paragraph is preceded by a blank line, the paragraph starts at that | |
20c5a87d RS |
597 | blank line. |
598 | ||
215e89e5 RS |
599 | See `forward-paragraph' for more information." |
600 | (interactive "p") | |
e85c6b7c | 601 | (pc-select-ensure-mark) |
215e89e5 RS |
602 | (backward-paragraph arg)) |
603 | ||
604 | (defun previous-line-mark (&optional arg) | |
605 | "Ensure mark is active; move cursor vertically up ARG lines. | |
606 | If there is no character in the target line exactly over the current column, | |
607 | the cursor is positioned after the character in that line which spans this | |
20c5a87d RS |
608 | column, or at the end of the line if it is not long enough. |
609 | ||
fd4e5923 | 610 | The command \\[set-goal-column] can be used to create |
215e89e5 | 611 | a semipermanent goal column to which this command always moves. |
20c5a87d RS |
612 | Then it does not try to move vertically. |
613 | ||
215e89e5 RS |
614 | If you are thinking of using this in a Lisp program, consider using |
615 | `forward-line' with a negative argument instead. It is usually easier | |
616 | to use and more reliable (no dependence on goal column, etc.)." | |
617 | (interactive "p") | |
e85c6b7c | 618 | (pc-select-ensure-mark) |
3fe5c37a | 619 | (with-no-warnings (previous-line arg)) |
14dacacd | 620 | (setq this-command 'previous-line)) |
215e89e5 RS |
621 | |
622 | (defun beginning-of-line-mark (&optional arg) | |
623 | "Ensure mark is active; move point to beginning of current line. | |
624 | With argument ARG not nil or 1, move forward ARG - 1 lines first. | |
625 | If scan reaches end of buffer, stop there without error." | |
626 | (interactive "p") | |
e85c6b7c | 627 | (pc-select-ensure-mark) |
215e89e5 RS |
628 | (beginning-of-line arg)) |
629 | ||
630 | ||
631 | (defun scroll-up-mark (&optional arg) | |
632 | "Ensure mark is active; scroll upward ARG lines; or near full screen if no ARG. | |
633 | A near full screen is `next-screen-context-lines' less than a full screen. | |
634 | Negative ARG means scroll downward. | |
635 | When calling from a program, supply a number as argument or nil." | |
636 | (interactive "P") | |
e85c6b7c | 637 | (pc-select-ensure-mark) |
2a811501 RS |
638 | (cond (pc-select-override-scroll-error |
639 | (condition-case nil (scroll-up arg) | |
640 | (end-of-buffer (goto-char (point-max))))) | |
641 | (t (scroll-up arg)))) | |
215e89e5 RS |
642 | |
643 | (defun beginning-of-buffer-mark (&optional arg) | |
644 | "Ensure mark is active; move point to the beginning of the buffer. | |
20c5a87d RS |
645 | With arg N, put point N/10 of the way from the beginning. |
646 | ||
215e89e5 | 647 | If the buffer is narrowed, this command uses the beginning and size |
20c5a87d RS |
648 | of the accessible part of the buffer. |
649 | ||
215e89e5 RS |
650 | Don't use this command in Lisp programs! |
651 | \(goto-char (p\oint-min)) is faster and avoids clobbering the mark." | |
652 | (interactive "P") | |
e85c6b7c | 653 | (pc-select-ensure-mark) |
215e89e5 RS |
654 | (let ((size (- (point-max) (point-min)))) |
655 | (goto-char (if arg | |
656 | (+ (point-min) | |
657 | (if (> size 10000) | |
658 | ;; Avoid overflow for large buffer sizes! | |
659 | (* (prefix-numeric-value arg) | |
660 | (/ size 10)) | |
661 | (/ (+ 10 (* size (prefix-numeric-value arg))) 10))) | |
662 | (point-min)))) | |
663 | (if arg (forward-line 1))) | |
664 | ||
665 | ;;;;;;;; | |
666 | ;;; no mark | |
667 | ;;;;;;;; | |
668 | ||
669 | (defun backward-char-nomark (&optional arg) | |
670 | "Deactivate mark; move point left ARG characters (right if ARG negative). | |
671 | On attempt to pass beginning or end of buffer, stop and signal error." | |
672 | (interactive "p") | |
e85c6b7c | 673 | (pc-select-maybe-deactivate-mark) |
215e89e5 RS |
674 | (backward-char arg)) |
675 | ||
676 | (defun backward-word-nomark (&optional arg) | |
677 | "Deactivate mark; move backward until encountering the end of a word. | |
678 | With argument, do this that many times." | |
679 | (interactive "p") | |
e85c6b7c | 680 | (pc-select-maybe-deactivate-mark) |
215e89e5 RS |
681 | (backward-word arg)) |
682 | ||
b50c87ee KH |
683 | (defun backward-sexp-nomark (&optional arg) |
684 | "Deactivate mark; move backward across one balanced expression (sexp). | |
685 | With argument, do it that many times. Negative arg -N means | |
686 | move forward across N balanced expressions." | |
687 | (interactive "p") | |
e85c6b7c | 688 | (pc-select-maybe-deactivate-mark) |
b50c87ee KH |
689 | (backward-sexp arg)) |
690 | ||
215e89e5 RS |
691 | (defun backward-paragraph-nomark (&optional arg) |
692 | "Deactivate mark; move backward to start of paragraph. | |
20c5a87d RS |
693 | With arg N, do it N times; negative arg -N means move forward N paragraphs. |
694 | ||
215e89e5 RS |
695 | A paragraph start is the beginning of a line which is a |
696 | `first-line-of-paragraph' or which is ordinary text and follows a | |
697 | paragraph-separating line; except: if the first real line of a | |
698 | paragraph is preceded by a blank line, the paragraph starts at that | |
20c5a87d RS |
699 | blank line. |
700 | ||
215e89e5 RS |
701 | See `forward-paragraph' for more information." |
702 | (interactive "p") | |
e85c6b7c | 703 | (pc-select-maybe-deactivate-mark) |
215e89e5 RS |
704 | (backward-paragraph arg)) |
705 | ||
706 | (defun previous-line-nomark (&optional arg) | |
707 | "Deactivate mark; move cursor vertically up ARG lines. | |
708 | If there is no character in the target line exactly over the current column, | |
709 | the cursor is positioned after the character in that line which spans this | |
20c5a87d RS |
710 | column, or at the end of the line if it is not long enough. |
711 | ||
fd4e5923 | 712 | The command \\[set-goal-column] can be used to create |
215e89e5 RS |
713 | a semipermanent goal column to which this command always moves. |
714 | Then it does not try to move vertically." | |
715 | (interactive "p") | |
e85c6b7c | 716 | (pc-select-maybe-deactivate-mark) |
3fe5c37a | 717 | (with-no-warnings (previous-line arg)) |
14dacacd | 718 | (setq this-command 'previous-line)) |
215e89e5 RS |
719 | |
720 | (defun beginning-of-line-nomark (&optional arg) | |
721 | "Deactivate mark; move point to beginning of current line. | |
722 | With argument ARG not nil or 1, move forward ARG - 1 lines first. | |
723 | If scan reaches end of buffer, stop there without error." | |
724 | (interactive "p") | |
e85c6b7c | 725 | (pc-select-maybe-deactivate-mark) |
215e89e5 RS |
726 | (beginning-of-line arg)) |
727 | ||
728 | (defun scroll-up-nomark (&optional arg) | |
729 | "Deactivate mark; scroll upward ARG lines; or near full screen if no ARG. | |
730 | A near full screen is `next-screen-context-lines' less than a full screen. | |
731 | Negative ARG means scroll downward. | |
732 | When calling from a program, supply a number as argument or nil." | |
733 | (interactive "P") | |
e85c6b7c | 734 | (pc-select-maybe-deactivate-mark) |
2a811501 RS |
735 | (cond (pc-select-override-scroll-error |
736 | (condition-case nil (scroll-up arg) | |
737 | (end-of-buffer (goto-char (point-max))))) | |
738 | (t (scroll-up arg)))) | |
215e89e5 RS |
739 | |
740 | (defun beginning-of-buffer-nomark (&optional arg) | |
741 | "Deactivate mark; move point to the beginning of the buffer. | |
20c5a87d RS |
742 | With arg N, put point N/10 of the way from the beginning. |
743 | ||
215e89e5 | 744 | If the buffer is narrowed, this command uses the beginning and size |
20c5a87d RS |
745 | of the accessible part of the buffer. |
746 | ||
215e89e5 | 747 | Don't use this command in Lisp programs! |
14dacacd | 748 | \(goto-char (point-min)) is faster and avoids clobbering the mark." |
215e89e5 | 749 | (interactive "P") |
e85c6b7c | 750 | (pc-select-maybe-deactivate-mark) |
215e89e5 RS |
751 | (let ((size (- (point-max) (point-min)))) |
752 | (goto-char (if arg | |
753 | (+ (point-min) | |
754 | (if (> size 10000) | |
755 | ;; Avoid overflow for large buffer sizes! | |
756 | (* (prefix-numeric-value arg) | |
757 | (/ size 10)) | |
758 | (/ (+ 10 (* size (prefix-numeric-value arg))) 10))) | |
759 | (point-min)))) | |
760 | (if arg (forward-line 1))) | |
761 | ||
cb96f094 RS |
762 | |
763 | (defun pc-select-define-keys (alist keymap) | |
764 | "Make KEYMAP have the key bindings specified in ALIST." | |
765 | (let ((lst alist)) | |
766 | (while lst | |
767 | (define-key keymap (caar lst) (cdar lst)) | |
768 | (setq lst (cdr lst))))) | |
769 | ||
770 | (defun pc-select-restore-keys (alist keymap saved-map) | |
771 | "Use ALIST to restore key bindings from SAVED-MAP into KEYMAP. | |
772 | Go through all the key bindings in ALIST, and, for each key | |
773 | binding, if KEYMAP and ALIST still agree on the key binding, | |
774 | restore the previous value of that key binding from SAVED-MAP." | |
775 | (let ((lst alist)) | |
776 | (while lst | |
777 | (when (equal (lookup-key keymap (caar lst)) (cdar lst)) | |
778 | (define-key keymap (caar lst) (lookup-key saved-map (caar lst)))) | |
779 | (setq lst (cdr lst))))) | |
780 | ||
781 | (defmacro pc-select-add-to-alist (alist var val) | |
782 | "Ensure that ALIST contains the cons cell (VAR . VAL). | |
783 | If a cons cell whose car is VAR is already on the ALIST, update the | |
a1506d29 | 784 | cdr of that cell with VAL. Otherwise, make a new cons cell |
cb96f094 RS |
785 | \(VAR . VAL), and prepend it onto ALIST." |
786 | (let ((elt (make-symbol "elt"))) | |
787 | `(let ((,elt (assq ',var ,alist))) | |
788 | (if ,elt | |
789 | (setcdr ,elt ,val) | |
790 | (setq ,alist (cons (cons ',var ,val) ,alist)))))) | |
791 | ||
792 | (defmacro pc-select-save-and-set-var (var newval) | |
793 | "Set VAR to NEWVAL; save the old value. | |
794 | The old value is saved on the `pc-select-saved-settings-alist'." | |
795 | `(when (boundp ',var) | |
024ab5b5 RS |
796 | (pc-select-add-to-alist pc-select-saved-settings-alist ,var ,var) |
797 | (setq ,var ,newval))) | |
cb96f094 RS |
798 | |
799 | (defmacro pc-select-save-and-set-mode (mode &optional arg mode-var) | |
800 | "Call the function MODE; save the old value of the variable MODE. | |
801 | MODE is presumed to be a function which turns on a minor mode. First, | |
802 | save the value of the variable MODE on `pc-select-saved-settings-alist'. | |
803 | Then, if ARG is specified, call MODE with ARG, otherwise call it with | |
804 | nil as an argument. If MODE-VAR is specified, save the value of the | |
805 | variable MODE-VAR (instead of the value of the variable MODE) on | |
806 | `pc-select-saved-settings-alist'." | |
024ab5b5 RS |
807 | (unless mode-var (setq mode-var mode)) |
808 | `(when (fboundp ',mode) | |
809 | (pc-select-add-to-alist pc-select-saved-settings-alist | |
810 | ,mode-var ,mode-var) | |
811 | (,mode ,arg))) | |
cb96f094 RS |
812 | |
813 | (defmacro pc-select-restore-var (var) | |
a1506d29 | 814 | "Restore the previous value of the variable VAR. |
cb96f094 RS |
815 | Look up VAR's previous value in `pc-select-saved-settings-alist', and, |
816 | if the value is found, set VAR to that value." | |
817 | (let ((elt (make-symbol "elt"))) | |
818 | `(let ((,elt (assq ',var pc-select-saved-settings-alist))) | |
819 | (unless (null ,elt) | |
820 | (setq ,var (cdr ,elt)))))) | |
821 | ||
822 | (defmacro pc-select-restore-mode (mode) | |
823 | "Restore the previous state (either on or off) of the minor mode MODE. | |
824 | Look up the value of the variable MODE on `pc-select-saved-settings-alist'. | |
825 | If the value is non-nil, call the function MODE with an argument of | |
826 | 1, otherwise call it with an argument of -1." | |
827 | (let ((elt (make-symbol "elt"))) | |
828 | `(when (fboundp ',mode) | |
829 | (let ((,elt (assq ',mode pc-select-saved-settings-alist))) | |
830 | (unless (null ,elt) | |
024ab5b5 | 831 | (,mode (if (cdr ,elt) 1 -1))))))) |
cb96f094 RS |
832 | |
833 | ||
3eeb7b9f | 834 | ;;;###autoload |
cb96f094 | 835 | (define-minor-mode pc-selection-mode |
ca088b04 | 836 | "Change mark behavior to emulate Motif, MAC or MS-Windows cut and paste style. |
20c5a87d RS |
837 | |
838 | This mode enables Delete Selection mode and Transient Mark mode. | |
839 | ||
840 | The arrow keys (and others) are bound to new functions | |
841 | which modify the status of the mark. | |
842 | ||
843 | The ordinary arrow keys disable the mark. | |
844 | The shift-arrow keys move, leaving the mark behind. | |
845 | ||
846 | C-LEFT and C-RIGHT move back or forward one word, disabling the mark. | |
847 | S-C-LEFT and S-C-RIGHT move back or forward one word, leaving the mark behind. | |
848 | ||
b50c87ee KH |
849 | M-LEFT and M-RIGHT move back or forward one word or sexp, disabling the mark. |
850 | S-M-LEFT and S-M-RIGHT move back or forward one word or sexp, leaving the mark | |
fd4e5923 SM |
851 | behind. To control whether these keys move word-wise or sexp-wise set the |
852 | variable `pc-select-meta-moves-sexps' after loading pc-select.el but before | |
e873bbf9 | 853 | turning PC Selection mode on. |
b50c87ee | 854 | |
20c5a87d RS |
855 | C-DOWN and C-UP move back or forward a paragraph, disabling the mark. |
856 | S-C-DOWN and S-C-UP move back or forward a paragraph, leaving the mark behind. | |
857 | ||
858 | HOME moves to beginning of line, disabling the mark. | |
859 | S-HOME moves to beginning of line, leaving the mark behind. | |
860 | With Ctrl or Meta, these keys move to beginning of buffer instead. | |
861 | ||
862 | END moves to end of line, disabling the mark. | |
863 | S-END moves to end of line, leaving the mark behind. | |
864 | With Ctrl or Meta, these keys move to end of buffer instead. | |
865 | ||
866 | PRIOR or PAGE-UP scrolls and disables the mark. | |
867 | S-PRIOR or S-PAGE-UP scrolls and leaves the mark behind. | |
868 | ||
869 | S-DELETE kills the region (`kill-region'). | |
870 | S-INSERT yanks text from the kill ring (`yank'). | |
871 | C-INSERT copies the region into the kill ring (`copy-region-as-kill'). | |
872 | ||
b50c87ee | 873 | In addition, certain other PC bindings are imitated (to avoid this, set |
fd4e5923 | 874 | the variable `pc-select-selection-keys-only' to t after loading pc-select.el |
e873bbf9 | 875 | but before calling PC Selection mode): |
fd4e5923 | 876 | |
cb96f094 RS |
877 | F6 other-window |
878 | DELETE delete-char | |
879 | C-DELETE kill-line | |
880 | M-DELETE kill-word | |
881 | C-M-DELETE kill-sexp | |
882 | C-BACKSPACE backward-kill-word | |
883 | M-BACKSPACE undo" | |
fd4e5923 | 884 | ;; FIXME: bring pc-bindings-mode here ? |
cb96f094 RS |
885 | nil nil nil |
886 | ||
887 | :group 'pc-select | |
888 | :global t | |
889 | ||
890 | (if pc-selection-mode | |
891 | (if (null pc-select-key-bindings-alist) | |
892 | (progn | |
93e92186 | 893 | (setq pc-select-saved-global-map (copy-keymap (current-global-map))) |
cb96f094 RS |
894 | (setq pc-select-key-bindings-alist |
895 | (append pc-select-default-key-bindings | |
896 | (if pc-select-selection-keys-only | |
897 | nil | |
898 | pc-select-extra-key-bindings) | |
899 | (if pc-select-meta-moves-sexps | |
900 | (car pc-select-meta-moves-sexps-key-bindings) | |
901 | (cadr pc-select-meta-moves-sexps-key-bindings)) | |
902 | (if (or pc-select-selection-keys-only | |
903 | (eq window-system 'x) | |
904 | (memq system-name '(ms-dos windows-nt))) | |
905 | nil | |
906 | pc-select-tty-key-bindings))) | |
907 | ||
93e92186 RS |
908 | (pc-select-define-keys pc-select-key-bindings-alist |
909 | (current-global-map)) | |
cb96f094 RS |
910 | |
911 | (unless (or pc-select-selection-keys-only | |
912 | (eq window-system 'x) | |
913 | (memq system-name '(ms-dos windows-nt))) | |
914 | ;; it is not clear that we need the following line | |
93e92186 | 915 | ;; I hope it doesn't do too much harm to leave it in, though... |
cb96f094 RS |
916 | (setq pc-select-old-M-delete-binding |
917 | (lookup-key function-key-map [M-delete])) | |
918 | (define-key function-key-map [M-delete] [?\M-d])) | |
919 | ||
920 | (when (and (not pc-select-selection-keys-only) | |
921 | (or (eq window-system 'x) | |
922 | (memq system-name '(ms-dos windows-nt))) | |
923 | (fboundp 'normal-erase-is-backspace-mode)) | |
924 | (pc-select-save-and-set-mode normal-erase-is-backspace-mode 1 | |
925 | normal-erase-is-backspace)) | |
926 | ;; the original author also had this above: | |
927 | ;; (setq-default normal-erase-is-backspace t) | |
928 | ;; However, the documentation for the variable says that | |
93e92186 | 929 | ;; "setting it with setq has no effect", so I'm removing it. |
a1506d29 | 930 | |
cb96f094 RS |
931 | (pc-select-save-and-set-var highlight-nonselected-windows nil) |
932 | (pc-select-save-and-set-var transient-mark-mode t) | |
933 | (pc-select-save-and-set-var mark-even-if-inactive t) | |
934 | (pc-select-save-and-set-mode delete-selection-mode 1)) | |
935 | ;;else | |
936 | ;; If the user turned on pc-selection-mode a second time | |
937 | ;; do not clobber the values of the variables that were | |
938 | ;; saved from before pc-selection mode was activated -- | |
939 | ;; just make sure the values are the way we like them. | |
93e92186 RS |
940 | (pc-select-define-keys pc-select-key-bindings-alist |
941 | (current-global-map)) | |
cb96f094 RS |
942 | (unless (or pc-select-selection-keys-only |
943 | (eq window-system 'x) | |
944 | (memq system-name '(ms-dos windows-nt))) | |
945 | ;; it is not clear that we need the following line | |
93e92186 | 946 | ;; I hope it doesn't do too much harm to leave it in, though... |
cb96f094 RS |
947 | (define-key function-key-map [M-delete] [?\M-d])) |
948 | (when (and (not pc-select-selection-keys-only) | |
949 | (or (eq window-system 'x) | |
950 | (memq system-name '(ms-dos windows-nt))) | |
951 | (fboundp 'normal-erase-is-backspace-mode)) | |
fd4e5923 | 952 | (normal-erase-is-backspace-mode 1)) |
cb96f094 RS |
953 | (setq highlight-nonselected-windows nil) |
954 | (setq transient-mark-mode t) | |
955 | (setq mark-even-if-inactive t) | |
956 | (delete-selection-mode 1)) | |
957 | ;;else | |
958 | (when pc-select-key-bindings-alist | |
959 | (when (and (not pc-select-selection-keys-only) | |
960 | (or (eq window-system 'x) | |
961 | (memq system-name '(ms-dos windows-nt)))) | |
962 | (pc-select-restore-mode normal-erase-is-backspace-mode)) | |
963 | ||
cb96f094 | 964 | (pc-select-restore-keys |
93e92186 RS |
965 | pc-select-key-bindings-alist (current-global-map) |
966 | pc-select-saved-global-map) | |
cb96f094 RS |
967 | |
968 | (pc-select-restore-var highlight-nonselected-windows) | |
969 | (pc-select-restore-var transient-mark-mode) | |
970 | (pc-select-restore-var mark-even-if-inactive) | |
971 | (pc-select-restore-mode delete-selection-mode) | |
972 | (and pc-select-old-M-delete-binding | |
973 | (define-key function-key-map [M-delete] | |
974 | pc-select-old-M-delete-binding)) | |
975 | (setq pc-select-key-bindings-alist nil | |
976 | pc-select-saved-settings-alist nil)))) | |
a1506d29 | 977 | |
de299ed7 | 978 | ;; arch-tag: 10697b70-ae07-4f3e-ad23-7814a3f418c2 |
215e89e5 | 979 | ;;; pc-select.el ends here |