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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 | |
b50c87ee | 5 | ;; Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. |
215e89e5 RS |
6 | |
7 | ;; Author: Michael Staats <michael@thp.Uni-Duisburg.DE> | |
8 | ;; Created: 26 Sep 1995 | |
9 | ||
10 | ;; This file is part of GNU Emacs. | |
11 | ||
12 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
13 | ;; it under the terms of the GNU General Public License as published by | |
14 | ;; the Free Software Foundation; either version 2, or (at your option) | |
15 | ;; any later version. | |
16 | ||
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
23 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
24 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
25 | ;; Boston, MA 02111-1307, USA. | |
215e89e5 RS |
26 | |
27 | ;;; Commentary: | |
b578f267 | 28 | |
215e89e5 RS |
29 | ;; This package emulates the mark, copy, cut and paste look-and-feel of motif |
30 | ;; programs (which is the same as the MAC gui and (sorry for that) MS-Windows). | |
31 | ;; It modifies the keybindings of the cursor keys and the next, prior, | |
32 | ;; home and end keys. They will modify mark-active. | |
33 | ;; You can still get the old behaviour of cursor moving with the | |
34 | ;; control sequences C-f, C-b, etc. | |
35 | ;; This package uses transient-mark-mode and | |
36 | ;; delete-selection-mode. | |
37 | ;; | |
38 | ;; In addition to that all key-bindings from the pc-mode are | |
39 | ;; done here too (as suggested by RMS). | |
40 | ;; | |
41 | ;; As I found out after I finished the first version, s-region.el tries | |
42 | ;; to do the same.... But my code is a little more complete and using | |
43 | ;; delete-selection-mode is very important for the look-and-feel. | |
44 | ;; Pete Forman <pete.forman@airgun.wg.waii.com> provided some motif | |
45 | ;; compliant keybindings which I added. I had to modify them a little | |
46 | ;; to add the -mark and -nomark functionality of cursor moving. | |
47 | ;; | |
48 | ;; Credits: | |
49 | ;; Many thanks to all who made comments. | |
50 | ;; Thanks to RMS and Ralf Muschall <prm@rz.uni-jena.de> for criticism. | |
51 | ;; Kevin Cutts <cutts@ukraine.corp.mot.com> added the beginning-of-buffer | |
52 | ;; and end-of-buffer functions which I modified a little. | |
53 | ;; David Biesack <sasdjb@unx.sas.com> suggested some more cleanup. | |
54 | ;; Thanks to Pete Forman <pete.forman@airgun.wg.waii.com> | |
55 | ;; for additional motif keybindings. | |
14dacacd RS |
56 | ;; Thanks to jvromans@squirrel.nl (Johan Vromans) for a bug report |
57 | ;; concerning setting of this-command. | |
83d1d58c | 58 | ;; Dan Nicolaescu <done@ece.arizona.ro> suggested suppressing the |
20c5a87d | 59 | ;; scroll-up/scroll-down error. |
b50c87ee KH |
60 | ;; Eli Barzilay (eli@cs.bgu.ac.il) suggested the sexps functions and |
61 | ;; keybindings. | |
215e89e5 RS |
62 | ;; |
63 | ;; Ok, some details about the idea of pc-selection-mode: | |
64 | ;; | |
65 | ;; o The standard keys for moving around (right, left, up, down, home, end, | |
66 | ;; prior, next, called "move-keys" from now on) will always de-activate | |
67 | ;; the mark. | |
68 | ;; o If you press "Shift" together with the "move-keys", the region | |
69 | ;; you pass along is activated | |
70 | ;; o You have the copy, cut and paste functions (as in many other programs) | |
71 | ;; which will operate on the active region | |
72 | ;; It was not possible to bind them to C-v, C-x and C-c for obvious | |
73 | ;; emacs reasons. | |
74 | ;; They will be bound according to the "old" behaviour to S-delete (cut), | |
75 | ;; S-insert (paste) and C-insert (copy). These keys do the same in many | |
76 | ;; other programs. | |
20c5a87d | 77 | ;; |
215e89e5 | 78 | |
20c5a87d | 79 | ;;;; Customization: |
83d1d58c RS |
80 | (defgroup pc-select nil |
81 | "Emulate pc bindings." | |
82 | :prefix "pc-select" | |
83 | :group 'editing-basics) | |
20c5a87d | 84 | |
83d1d58c | 85 | (defcustom pc-select-override-scroll-error t |
20c5a87d RS |
86 | "*Non-nil means don't generate error on scrolling past edge of buffer. |
87 | This variable applies in PC Selection mode only. | |
88 | The scroll commands normally generate an error if you try to scroll | |
89 | past the top or bottom of the buffer. This is annoying when selecting | |
90 | text with these commands. If you set this variable to non-nil, these | |
83d1d58c RS |
91 | errors are suppressed." |
92 | :type 'boolean | |
93 | :group 'pc-select) | |
215e89e5 | 94 | |
83d1d58c | 95 | (defcustom pc-select-selection-keys-only nil |
b50c87ee KH |
96 | "*Non-nil means only bind the basic selection keys when started. |
97 | Other keys that emulate pc-behavior will be untouched. | |
83d1d58c RS |
98 | This gives mostly Emacs-like behaviour with only the selection keys enabled." |
99 | :type 'boolean | |
100 | :group 'pc-select) | |
b50c87ee | 101 | |
83d1d58c RS |
102 | (defcustom pc-select-meta-moves-sexps nil |
103 | "*Non-nil means move sexp-wise with Meta key, otherwise move word-wise." | |
104 | :type 'boolean | |
105 | :group 'pc-select) | |
b50c87ee | 106 | |
215e89e5 RS |
107 | ;;;; |
108 | ;; misc | |
109 | ;;;; | |
110 | ||
111 | (provide 'pc-select) | |
112 | ||
113 | (defun copy-region-as-kill-nomark (beg end) | |
114 | "Save the region as if killed; but don't kill it; deactivate mark. | |
115 | If `interprogram-cut-function' is non-nil, also save the text for a window | |
20c5a87d RS |
116 | system cut and paste. |
117 | ||
215e89e5 RS |
118 | Deactivating mark is to avoid confusion with delete-selection-mode |
119 | and transient-mark-mode." | |
120 | (interactive "r") | |
121 | (copy-region-as-kill beg end) | |
122 | (setq mark-active nil) | |
123 | (message "Region saved")) | |
124 | ||
b50c87ee KH |
125 | (defun exchange-point-and-mark-nomark () |
126 | (interactive) | |
127 | (exchange-point-and-mark) | |
128 | (setq mark-active nil)) | |
129 | ||
215e89e5 RS |
130 | ;;;; |
131 | ;; non-interactive | |
132 | ;;;; | |
133 | (defun ensure-mark() | |
134 | ;; make sure mark is active | |
135 | ;; test if it is active, if it isn't, set it and activate it | |
2a811501 | 136 | (or mark-active (set-mark-command nil))) |
215e89e5 RS |
137 | |
138 | ;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
139 | ;;;;; forward and mark | |
140 | ;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
141 | ||
142 | (defun forward-char-mark (&optional arg) | |
143 | "Ensure mark is active; move point right ARG characters (left if ARG negative). | |
144 | On reaching end of buffer, stop and signal error." | |
145 | (interactive "p") | |
146 | (ensure-mark) | |
147 | (forward-char arg)) | |
148 | ||
149 | (defun forward-word-mark (&optional arg) | |
150 | "Ensure mark is active; move point right ARG words (backward if ARG is negative). | |
151 | Normally returns t. | |
152 | If an edge of the buffer is reached, point is left there | |
153 | and nil is returned." | |
154 | (interactive "p") | |
155 | (ensure-mark) | |
156 | (forward-word arg)) | |
157 | ||
20c5a87d RS |
158 | (defun forward-line-mark (&optional arg) |
159 | "Ensure mark is active; move cursor vertically down ARG lines." | |
160 | (interactive "p") | |
161 | (ensure-mark) | |
162 | (forward-line arg) | |
163 | (setq this-command 'forward-line) | |
164 | ) | |
165 | ||
b50c87ee KH |
166 | (defun forward-sexp-mark (&optional arg) |
167 | "Ensure mark is active; move forward across one balanced expression (sexp). | |
168 | With argument, do it that many times. Negative arg -N means | |
169 | move backward across N balanced expressions." | |
170 | (interactive "p") | |
171 | (ensure-mark) | |
172 | (forward-sexp arg)) | |
173 | ||
215e89e5 RS |
174 | (defun forward-paragraph-mark (&optional arg) |
175 | "Ensure mark is active; move forward to end of paragraph. | |
20c5a87d RS |
176 | With arg N, do it N times; negative arg -N means move backward N paragraphs. |
177 | ||
215e89e5 | 178 | A line which `paragraph-start' matches either separates paragraphs |
14dacacd | 179 | \(if `paragraph-separate' matches it also) or is the first line of a paragraph. |
215e89e5 RS |
180 | A paragraph end is the beginning of a line which is not part of the paragraph |
181 | to which the end of the previous line belongs, or the end of the buffer." | |
182 | (interactive "p") | |
183 | (ensure-mark) | |
184 | (forward-paragraph arg)) | |
20c5a87d | 185 | |
215e89e5 RS |
186 | (defun next-line-mark (&optional arg) |
187 | "Ensure mark is active; move cursor vertically down ARG lines. | |
188 | If there is no character in the target line exactly under the current column, | |
189 | the cursor is positioned after the character in that line which spans this | |
190 | column, or at the end of the line if it is not long enough. | |
191 | If there is no line in the buffer after this one, behavior depends on the | |
192 | value of `next-line-add-newlines'. If non-nil, it inserts a newline character | |
193 | to create a line, and moves the cursor to that line. Otherwise it moves the | |
194 | cursor to the end of the buffer \(if already at the end of the buffer, an error | |
20c5a87d RS |
195 | is signaled). |
196 | ||
215e89e5 RS |
197 | The command C-x C-n can be used to create |
198 | a semipermanent goal column to which this command always moves. | |
199 | Then it does not try to move vertically. This goal column is stored | |
200 | in `goal-column', which is nil when there is none." | |
201 | (interactive "p") | |
202 | (ensure-mark) | |
14dacacd RS |
203 | (next-line arg) |
204 | (setq this-command 'next-line)) | |
215e89e5 RS |
205 | |
206 | (defun end-of-line-mark (&optional arg) | |
207 | "Ensure mark is active; move point to end of current line. | |
208 | With argument ARG not nil or 1, move forward ARG - 1 lines first. | |
209 | If scan reaches end of buffer, stop there without error." | |
210 | (interactive "p") | |
211 | (ensure-mark) | |
14dacacd RS |
212 | (end-of-line arg) |
213 | (setq this-command 'end-of-line)) | |
215e89e5 | 214 | |
20c5a87d RS |
215 | (defun backward-line-mark (&optional arg) |
216 | "Ensure mark is active; move cursor vertically up ARG lines." | |
217 | (interactive "p") | |
218 | (ensure-mark) | |
219 | (if (null arg) | |
220 | (setq arg 1)) | |
221 | (forward-line (- arg)) | |
222 | (setq this-command 'forward-line) | |
223 | ) | |
224 | ||
215e89e5 RS |
225 | (defun scroll-down-mark (&optional arg) |
226 | "Ensure mark is active; scroll down ARG lines; or near full screen if no ARG. | |
227 | A near full screen is `next-screen-context-lines' less than a full screen. | |
228 | Negative ARG means scroll upward. | |
229 | When calling from a program, supply a number as argument or nil." | |
230 | (interactive "P") | |
231 | (ensure-mark) | |
2a811501 RS |
232 | (cond (pc-select-override-scroll-error |
233 | (condition-case nil (scroll-down arg) | |
234 | (beginning-of-buffer (goto-char (point-min))))) | |
235 | (t (scroll-down arg)))) | |
215e89e5 RS |
236 | |
237 | (defun end-of-buffer-mark (&optional arg) | |
238 | "Ensure mark is active; move point to the end of the buffer. | |
20c5a87d RS |
239 | With arg N, put point N/10 of the way from the end. |
240 | ||
215e89e5 | 241 | If the buffer is narrowed, this command uses the beginning and size |
20c5a87d RS |
242 | of the accessible part of the buffer. |
243 | ||
215e89e5 RS |
244 | Don't use this command in Lisp programs! |
245 | \(goto-char \(point-max)) is faster and avoids clobbering the mark." | |
246 | (interactive "P") | |
247 | (ensure-mark) | |
248 | (let ((size (- (point-max) (point-min)))) | |
249 | (goto-char (if arg | |
250 | (- (point-max) | |
251 | (if (> size 10000) | |
252 | ;; Avoid overflow for large buffer sizes! | |
253 | (* (prefix-numeric-value arg) | |
254 | (/ size 10)) | |
255 | (/ (* size (prefix-numeric-value arg)) 10))) | |
256 | (point-max)))) | |
257 | ;; If we went to a place in the middle of the buffer, | |
258 | ;; adjust it to the beginning of a line. | |
259 | (if arg (forward-line 1) | |
260 | ;; If the end of the buffer is not already on the screen, | |
261 | ;; then scroll specially to put it near, but not at, the bottom. | |
262 | (if (let ((old-point (point))) | |
263 | (save-excursion | |
264 | (goto-char (window-start)) | |
265 | (vertical-motion (window-height)) | |
266 | (< (point) old-point))) | |
267 | (progn | |
268 | (overlay-recenter (point)) | |
269 | (recenter -3))))) | |
270 | ||
271 | ;;;;;;;;; | |
272 | ;;;;; no mark | |
273 | ;;;;;;;;; | |
274 | ||
275 | (defun forward-char-nomark (&optional arg) | |
276 | "Deactivate mark; move point right ARG characters \(left if ARG negative). | |
277 | On reaching end of buffer, stop and signal error." | |
278 | (interactive "p") | |
279 | (setq mark-active nil) | |
280 | (forward-char arg)) | |
281 | ||
282 | (defun forward-word-nomark (&optional arg) | |
283 | "Deactivate mark; move point right ARG words \(backward if ARG is negative). | |
284 | Normally returns t. | |
285 | If an edge of the buffer is reached, point is left there | |
286 | and nil is returned." | |
287 | (interactive "p") | |
288 | (setq mark-active nil) | |
289 | (forward-word arg)) | |
290 | ||
20c5a87d RS |
291 | (defun forward-line-nomark (&optional arg) |
292 | "Deactivate mark; move cursor vertically down ARG lines." | |
293 | (interactive "p") | |
294 | (setq mark-active nil) | |
295 | (forward-line arg) | |
296 | (setq this-command 'forward-line) | |
297 | ) | |
298 | ||
b50c87ee KH |
299 | (defun forward-sexp-nomark (&optional arg) |
300 | "Deactivate mark; move forward across one balanced expression (sexp). | |
301 | With argument, do it that many times. Negative arg -N means | |
302 | move backward across N balanced expressions." | |
303 | (interactive "p") | |
304 | (setq mark-active nil) | |
305 | (forward-sexp arg)) | |
306 | ||
215e89e5 RS |
307 | (defun forward-paragraph-nomark (&optional arg) |
308 | "Deactivate mark; move forward to end of paragraph. | |
20c5a87d RS |
309 | With arg N, do it N times; negative arg -N means move backward N paragraphs. |
310 | ||
215e89e5 | 311 | A line which `paragraph-start' matches either separates paragraphs |
14dacacd | 312 | \(if `paragraph-separate' matches it also) or is the first line of a paragraph. |
215e89e5 RS |
313 | A paragraph end is the beginning of a line which is not part of the paragraph |
314 | to which the end of the previous line belongs, or the end of the buffer." | |
315 | (interactive "p") | |
316 | (setq mark-active nil) | |
317 | (forward-paragraph arg)) | |
318 | ||
319 | (defun next-line-nomark (&optional arg) | |
320 | "Deactivate mark; move cursor vertically down ARG lines. | |
321 | If there is no character in the target line exactly under the current column, | |
322 | the cursor is positioned after the character in that line which spans this | |
323 | column, or at the end of the line if it is not long enough. | |
324 | If there is no line in the buffer after this one, behavior depends on the | |
325 | value of `next-line-add-newlines'. If non-nil, it inserts a newline character | |
326 | to create a line, and moves the cursor to that line. Otherwise it moves the | |
327 | cursor to the end of the buffer (if already at the end of the buffer, an error | |
20c5a87d RS |
328 | is signaled). |
329 | ||
215e89e5 RS |
330 | The command C-x C-n can be used to create |
331 | a semipermanent goal column to which this command always moves. | |
332 | Then it does not try to move vertically. This goal column is stored | |
333 | in `goal-column', which is nil when there is none." | |
334 | (interactive "p") | |
335 | (setq mark-active nil) | |
14dacacd RS |
336 | (next-line arg) |
337 | (setq this-command 'next-line)) | |
215e89e5 RS |
338 | |
339 | (defun end-of-line-nomark (&optional arg) | |
340 | "Deactivate mark; move point to end of current line. | |
341 | With argument ARG not nil or 1, move forward ARG - 1 lines first. | |
342 | If scan reaches end of buffer, stop there without error." | |
343 | (interactive "p") | |
344 | (setq mark-active nil) | |
14dacacd RS |
345 | (end-of-line arg) |
346 | (setq this-command 'end-of-line)) | |
215e89e5 | 347 | |
20c5a87d RS |
348 | (defun backward-line-nomark (&optional arg) |
349 | "Deactivate mark; move cursor vertically up ARG lines." | |
350 | (interactive "p") | |
351 | (setq mark-active nil) | |
352 | (if (null arg) | |
353 | (setq arg 1)) | |
354 | (forward-line (- arg)) | |
355 | (setq this-command 'forward-line) | |
356 | ) | |
357 | ||
215e89e5 RS |
358 | (defun scroll-down-nomark (&optional arg) |
359 | "Deactivate mark; scroll down ARG lines; or near full screen if no ARG. | |
360 | A near full screen is `next-screen-context-lines' less than a full screen. | |
361 | Negative ARG means scroll upward. | |
362 | When calling from a program, supply a number as argument or nil." | |
363 | (interactive "P") | |
364 | (setq mark-active nil) | |
2a811501 RS |
365 | (cond (pc-select-override-scroll-error |
366 | (condition-case nil (scroll-down arg) | |
367 | (beginning-of-buffer (goto-char (point-min))))) | |
368 | (t (scroll-down arg)))) | |
215e89e5 RS |
369 | |
370 | (defun end-of-buffer-nomark (&optional arg) | |
371 | "Deactivate mark; move point to the end of the buffer. | |
20c5a87d RS |
372 | With arg N, put point N/10 of the way from the end. |
373 | ||
215e89e5 | 374 | If the buffer is narrowed, this command uses the beginning and size |
20c5a87d RS |
375 | of the accessible part of the buffer. |
376 | ||
215e89e5 | 377 | Don't use this command in Lisp programs! |
14dacacd | 378 | \(goto-char (point-max)) is faster and avoids clobbering the mark." |
215e89e5 RS |
379 | (interactive "P") |
380 | (setq mark-active nil) | |
381 | (let ((size (- (point-max) (point-min)))) | |
382 | (goto-char (if arg | |
383 | (- (point-max) | |
384 | (if (> size 10000) | |
385 | ;; Avoid overflow for large buffer sizes! | |
386 | (* (prefix-numeric-value arg) | |
387 | (/ size 10)) | |
388 | (/ (* size (prefix-numeric-value arg)) 10))) | |
389 | (point-max)))) | |
390 | ;; If we went to a place in the middle of the buffer, | |
391 | ;; adjust it to the beginning of a line. | |
392 | (if arg (forward-line 1) | |
393 | ;; If the end of the buffer is not already on the screen, | |
394 | ;; then scroll specially to put it near, but not at, the bottom. | |
395 | (if (let ((old-point (point))) | |
396 | (save-excursion | |
397 | (goto-char (window-start)) | |
398 | (vertical-motion (window-height)) | |
399 | (< (point) old-point))) | |
400 | (progn | |
401 | (overlay-recenter (point)) | |
402 | (recenter -3))))) | |
403 | ||
404 | ||
405 | ;;;;;;;;;;;;;;;;;;;; | |
406 | ;;;;;; backwards and mark | |
407 | ;;;;;;;;;;;;;;;;;;;; | |
408 | ||
409 | (defun backward-char-mark (&optional arg) | |
410 | "Ensure mark is active; move point left ARG characters (right if ARG negative). | |
411 | On attempt to pass beginning or end of buffer, stop and signal error." | |
412 | (interactive "p") | |
413 | (ensure-mark) | |
414 | (backward-char arg)) | |
415 | ||
416 | (defun backward-word-mark (&optional arg) | |
417 | "Ensure mark is active; move backward until encountering the end of a word. | |
418 | With argument, do this that many times." | |
419 | (interactive "p") | |
420 | (ensure-mark) | |
421 | (backward-word arg)) | |
422 | ||
b50c87ee KH |
423 | (defun backward-sexp-mark (&optional arg) |
424 | "Ensure mark is active; move backward across one balanced expression (sexp). | |
425 | With argument, do it that many times. Negative arg -N means | |
426 | move forward across N balanced expressions." | |
427 | (interactive "p") | |
428 | (ensure-mark) | |
429 | (backward-sexp arg)) | |
430 | ||
215e89e5 RS |
431 | (defun backward-paragraph-mark (&optional arg) |
432 | "Ensure mark is active; move backward to start of paragraph. | |
20c5a87d RS |
433 | With arg N, do it N times; negative arg -N means move forward N paragraphs. |
434 | ||
215e89e5 RS |
435 | A paragraph start is the beginning of a line which is a |
436 | `first-line-of-paragraph' or which is ordinary text and follows a | |
437 | paragraph-separating line; except: if the first real line of a | |
438 | paragraph is preceded by a blank line, the paragraph starts at that | |
20c5a87d RS |
439 | blank line. |
440 | ||
215e89e5 RS |
441 | See `forward-paragraph' for more information." |
442 | (interactive "p") | |
443 | (ensure-mark) | |
444 | (backward-paragraph arg)) | |
445 | ||
446 | (defun previous-line-mark (&optional arg) | |
447 | "Ensure mark is active; move cursor vertically up ARG lines. | |
448 | If there is no character in the target line exactly over the current column, | |
449 | the cursor is positioned after the character in that line which spans this | |
20c5a87d RS |
450 | column, or at the end of the line if it is not long enough. |
451 | ||
215e89e5 RS |
452 | The command C-x C-n can be used to create |
453 | a semipermanent goal column to which this command always moves. | |
20c5a87d RS |
454 | Then it does not try to move vertically. |
455 | ||
215e89e5 RS |
456 | If you are thinking of using this in a Lisp program, consider using |
457 | `forward-line' with a negative argument instead. It is usually easier | |
458 | to use and more reliable (no dependence on goal column, etc.)." | |
459 | (interactive "p") | |
460 | (ensure-mark) | |
14dacacd RS |
461 | (previous-line arg) |
462 | (setq this-command 'previous-line)) | |
215e89e5 RS |
463 | |
464 | (defun beginning-of-line-mark (&optional arg) | |
465 | "Ensure mark is active; move point to beginning of current line. | |
466 | With argument ARG not nil or 1, move forward ARG - 1 lines first. | |
467 | If scan reaches end of buffer, stop there without error." | |
468 | (interactive "p") | |
469 | (ensure-mark) | |
470 | (beginning-of-line arg)) | |
471 | ||
472 | ||
473 | (defun scroll-up-mark (&optional arg) | |
474 | "Ensure mark is active; scroll upward ARG lines; or near full screen if no ARG. | |
475 | A near full screen is `next-screen-context-lines' less than a full screen. | |
476 | Negative ARG means scroll downward. | |
477 | When calling from a program, supply a number as argument or nil." | |
478 | (interactive "P") | |
479 | (ensure-mark) | |
2a811501 RS |
480 | (cond (pc-select-override-scroll-error |
481 | (condition-case nil (scroll-up arg) | |
482 | (end-of-buffer (goto-char (point-max))))) | |
483 | (t (scroll-up arg)))) | |
215e89e5 RS |
484 | |
485 | (defun beginning-of-buffer-mark (&optional arg) | |
486 | "Ensure mark is active; move point to the beginning of the buffer. | |
20c5a87d RS |
487 | With arg N, put point N/10 of the way from the beginning. |
488 | ||
215e89e5 | 489 | If the buffer is narrowed, this command uses the beginning and size |
20c5a87d RS |
490 | of the accessible part of the buffer. |
491 | ||
215e89e5 RS |
492 | Don't use this command in Lisp programs! |
493 | \(goto-char (p\oint-min)) is faster and avoids clobbering the mark." | |
494 | (interactive "P") | |
495 | (ensure-mark) | |
496 | (let ((size (- (point-max) (point-min)))) | |
497 | (goto-char (if arg | |
498 | (+ (point-min) | |
499 | (if (> size 10000) | |
500 | ;; Avoid overflow for large buffer sizes! | |
501 | (* (prefix-numeric-value arg) | |
502 | (/ size 10)) | |
503 | (/ (+ 10 (* size (prefix-numeric-value arg))) 10))) | |
504 | (point-min)))) | |
505 | (if arg (forward-line 1))) | |
506 | ||
507 | ;;;;;;;; | |
508 | ;;; no mark | |
509 | ;;;;;;;; | |
510 | ||
511 | (defun backward-char-nomark (&optional arg) | |
512 | "Deactivate mark; move point left ARG characters (right if ARG negative). | |
513 | On attempt to pass beginning or end of buffer, stop and signal error." | |
514 | (interactive "p") | |
515 | (setq mark-active nil) | |
516 | (backward-char arg)) | |
517 | ||
518 | (defun backward-word-nomark (&optional arg) | |
519 | "Deactivate mark; move backward until encountering the end of a word. | |
520 | With argument, do this that many times." | |
521 | (interactive "p") | |
522 | (setq mark-active nil) | |
523 | (backward-word arg)) | |
524 | ||
b50c87ee KH |
525 | (defun backward-sexp-nomark (&optional arg) |
526 | "Deactivate mark; move backward across one balanced expression (sexp). | |
527 | With argument, do it that many times. Negative arg -N means | |
528 | move forward across N balanced expressions." | |
529 | (interactive "p") | |
530 | (setq mark-active nil) | |
531 | (backward-sexp arg)) | |
532 | ||
215e89e5 RS |
533 | (defun backward-paragraph-nomark (&optional arg) |
534 | "Deactivate mark; move backward to start of paragraph. | |
20c5a87d RS |
535 | With arg N, do it N times; negative arg -N means move forward N paragraphs. |
536 | ||
215e89e5 RS |
537 | A paragraph start is the beginning of a line which is a |
538 | `first-line-of-paragraph' or which is ordinary text and follows a | |
539 | paragraph-separating line; except: if the first real line of a | |
540 | paragraph is preceded by a blank line, the paragraph starts at that | |
20c5a87d RS |
541 | blank line. |
542 | ||
215e89e5 RS |
543 | See `forward-paragraph' for more information." |
544 | (interactive "p") | |
545 | (setq mark-active nil) | |
546 | (backward-paragraph arg)) | |
547 | ||
548 | (defun previous-line-nomark (&optional arg) | |
549 | "Deactivate mark; move cursor vertically up ARG lines. | |
550 | If there is no character in the target line exactly over the current column, | |
551 | the cursor is positioned after the character in that line which spans this | |
20c5a87d RS |
552 | column, or at the end of the line if it is not long enough. |
553 | ||
215e89e5 RS |
554 | The command C-x C-n can be used to create |
555 | a semipermanent goal column to which this command always moves. | |
556 | Then it does not try to move vertically." | |
557 | (interactive "p") | |
558 | (setq mark-active nil) | |
14dacacd RS |
559 | (previous-line arg) |
560 | (setq this-command 'previous-line)) | |
215e89e5 RS |
561 | |
562 | (defun beginning-of-line-nomark (&optional arg) | |
563 | "Deactivate mark; move point to beginning of current line. | |
564 | With argument ARG not nil or 1, move forward ARG - 1 lines first. | |
565 | If scan reaches end of buffer, stop there without error." | |
566 | (interactive "p") | |
567 | (setq mark-active nil) | |
568 | (beginning-of-line arg)) | |
569 | ||
570 | (defun scroll-up-nomark (&optional arg) | |
571 | "Deactivate mark; scroll upward ARG lines; or near full screen if no ARG. | |
572 | A near full screen is `next-screen-context-lines' less than a full screen. | |
573 | Negative ARG means scroll downward. | |
574 | When calling from a program, supply a number as argument or nil." | |
575 | (interactive "P") | |
576 | (setq mark-active nil) | |
2a811501 RS |
577 | (cond (pc-select-override-scroll-error |
578 | (condition-case nil (scroll-up arg) | |
579 | (end-of-buffer (goto-char (point-max))))) | |
580 | (t (scroll-up arg)))) | |
215e89e5 RS |
581 | |
582 | (defun beginning-of-buffer-nomark (&optional arg) | |
583 | "Deactivate mark; move point to the beginning of the buffer. | |
20c5a87d RS |
584 | With arg N, put point N/10 of the way from the beginning. |
585 | ||
215e89e5 | 586 | If the buffer is narrowed, this command uses the beginning and size |
20c5a87d RS |
587 | of the accessible part of the buffer. |
588 | ||
215e89e5 | 589 | Don't use this command in Lisp programs! |
14dacacd | 590 | \(goto-char (point-min)) is faster and avoids clobbering the mark." |
215e89e5 RS |
591 | (interactive "P") |
592 | (setq mark-active nil) | |
593 | (let ((size (- (point-max) (point-min)))) | |
594 | (goto-char (if arg | |
595 | (+ (point-min) | |
596 | (if (> size 10000) | |
597 | ;; Avoid overflow for large buffer sizes! | |
598 | (* (prefix-numeric-value arg) | |
599 | (/ size 10)) | |
600 | (/ (+ 10 (* size (prefix-numeric-value arg))) 10))) | |
601 | (point-min)))) | |
602 | (if arg (forward-line 1))) | |
603 | ||
3eeb7b9f | 604 | ;;;###autoload |
215e89e5 | 605 | (defun pc-selection-mode () |
20c5a87d RS |
606 | "Change mark behaviour to emulate Motif, MAC or MS-Windows cut and paste style. |
607 | ||
608 | This mode enables Delete Selection mode and Transient Mark mode. | |
609 | ||
610 | The arrow keys (and others) are bound to new functions | |
611 | which modify the status of the mark. | |
612 | ||
613 | The ordinary arrow keys disable the mark. | |
614 | The shift-arrow keys move, leaving the mark behind. | |
615 | ||
616 | C-LEFT and C-RIGHT move back or forward one word, disabling the mark. | |
617 | S-C-LEFT and S-C-RIGHT move back or forward one word, leaving the mark behind. | |
618 | ||
b50c87ee KH |
619 | M-LEFT and M-RIGHT move back or forward one word or sexp, disabling the mark. |
620 | S-M-LEFT and S-M-RIGHT move back or forward one word or sexp, leaving the mark | |
621 | behind. To control wether these keys move word-wise or sexp-wise set the | |
622 | variable pc-select-meta-moves-sexps after loading pc-select.el but before | |
623 | turning pc-selection-mode on. | |
624 | ||
20c5a87d RS |
625 | C-DOWN and C-UP move back or forward a paragraph, disabling the mark. |
626 | S-C-DOWN and S-C-UP move back or forward a paragraph, leaving the mark behind. | |
627 | ||
628 | HOME moves to beginning of line, disabling the mark. | |
629 | S-HOME moves to beginning of line, leaving the mark behind. | |
630 | With Ctrl or Meta, these keys move to beginning of buffer instead. | |
631 | ||
632 | END moves to end of line, disabling the mark. | |
633 | S-END moves to end of line, leaving the mark behind. | |
634 | With Ctrl or Meta, these keys move to end of buffer instead. | |
635 | ||
636 | PRIOR or PAGE-UP scrolls and disables the mark. | |
637 | S-PRIOR or S-PAGE-UP scrolls and leaves the mark behind. | |
638 | ||
639 | S-DELETE kills the region (`kill-region'). | |
640 | S-INSERT yanks text from the kill ring (`yank'). | |
641 | C-INSERT copies the region into the kill ring (`copy-region-as-kill'). | |
642 | ||
b50c87ee KH |
643 | In addition, certain other PC bindings are imitated (to avoid this, set |
644 | the variable pc-select-selection-keys-only to t after loading pc-select.el | |
645 | but before calling pc-selection-mode): | |
20c5a87d RS |
646 | |
647 | F6 other-window | |
648 | DELETE delete-char | |
649 | C-DELETE kill-line | |
650 | M-DELETE kill-word | |
651 | C-M-DELETE kill-sexp | |
652 | C-BACKSPACE backward-kill-word | |
653 | M-BACKSPACE undo" | |
654 | ||
215e89e5 RS |
655 | (interactive) |
656 | ;; | |
657 | ;; keybindings | |
658 | ;; | |
659 | ||
660 | ;; This is to avoid confusion with the delete-selection-mode | |
661 | ;; On simple displays you can't see that a region is active and | |
b50c87ee KH |
662 | ;; will be deleted on the next keypress. IMHO especially for |
663 | ;; copy-region-as-kill this is confusing. | |
664 | ;; The same goes for exchange-point-and-mark | |
215e89e5 | 665 | (define-key global-map "\M-w" 'copy-region-as-kill-nomark) |
b50c87ee | 666 | (define-key global-map "\C-x\C-x" 'exchange-point-and-mark-nomark) |
a7acbbe4 | 667 | ;; The following keybindings are for standard ISO keyboards |
215e89e5 RS |
668 | ;; as they are used with IBM compatible PCs, IBM RS/6000, |
669 | ;; MACs, many X-Stations and probably more | |
670 | (define-key global-map [S-right] 'forward-char-mark) | |
671 | (define-key global-map [right] 'forward-char-nomark) | |
672 | (define-key global-map [C-S-right] 'forward-word-mark) | |
673 | (define-key global-map [C-right] 'forward-word-nomark) | |
b50c87ee KH |
674 | (define-key global-map [S-left] 'backward-char-mark) |
675 | (define-key global-map [left] 'backward-char-nomark) | |
676 | (define-key global-map [C-S-left] 'backward-word-mark) | |
677 | (define-key global-map [C-left] 'backward-word-nomark) | |
678 | (cond (pc-select-meta-moves-sexps | |
679 | (define-key global-map [M-S-right] 'forward-sexp-mark) | |
680 | (define-key global-map [M-right] 'forward-sexp-nomark) | |
681 | (define-key global-map [M-S-left] 'backward-sexp-mark) | |
682 | (define-key global-map [M-left] 'backward-sexp-nomark)) | |
683 | (t | |
684 | (define-key global-map [M-S-right] 'forward-word-mark) | |
685 | (define-key global-map [M-right] 'forward-word-nomark) | |
686 | (define-key global-map [M-S-left] 'backward-word-mark) | |
687 | (define-key global-map [M-left] 'backward-word-nomark))) | |
215e89e5 RS |
688 | |
689 | (define-key global-map [S-down] 'next-line-mark) | |
690 | (define-key global-map [down] 'next-line-nomark) | |
691 | ||
692 | (define-key global-map [S-end] 'end-of-line-mark) | |
693 | (define-key global-map [end] 'end-of-line-nomark) | |
694 | (global-set-key [S-C-end] 'end-of-buffer-mark) | |
695 | (global-set-key [C-end] 'end-of-buffer-nomark) | |
14dacacd RS |
696 | (global-set-key [S-M-end] 'end-of-buffer-mark) |
697 | (global-set-key [M-end] 'end-of-buffer-nomark) | |
215e89e5 RS |
698 | |
699 | (define-key global-map [S-next] 'scroll-up-mark) | |
700 | (define-key global-map [next] 'scroll-up-nomark) | |
701 | ||
215e89e5 RS |
702 | (define-key global-map [S-up] 'previous-line-mark) |
703 | (define-key global-map [up] 'previous-line-nomark) | |
704 | ||
705 | (define-key global-map [S-home] 'beginning-of-line-mark) | |
706 | (define-key global-map [home] 'beginning-of-line-nomark) | |
707 | (global-set-key [S-C-home] 'beginning-of-buffer-mark) | |
708 | (global-set-key [C-home] 'beginning-of-buffer-nomark) | |
14dacacd RS |
709 | (global-set-key [S-M-home] 'beginning-of-buffer-mark) |
710 | (global-set-key [M-home] 'beginning-of-buffer-nomark) | |
215e89e5 | 711 | |
20c5a87d RS |
712 | (define-key global-map [M-S-down] 'forward-line-mark) |
713 | (define-key global-map [M-down] 'forward-line-nomark) | |
714 | (define-key global-map [M-S-up] 'backward-line-mark) | |
715 | (define-key global-map [M-up] 'backward-line-nomark) | |
716 | ||
b50c87ee KH |
717 | (define-key global-map [S-prior] 'scroll-down-mark) |
718 | (define-key global-map [prior] 'scroll-down-nomark) | |
719 | ||
720 | ;; Next four lines are from Pete Forman. | |
721 | (global-set-key [C-down] 'forward-paragraph-nomark) ; KNextPara cDn | |
722 | (global-set-key [C-up] 'backward-paragraph-nomark) ; KPrevPara cUp | |
215e89e5 RS |
723 | (global-set-key [S-C-down] 'forward-paragraph-mark) |
724 | (global-set-key [S-C-up] 'backward-paragraph-mark) | |
725 | ||
b50c87ee KH |
726 | (or pc-select-selection-keys-only |
727 | (progn | |
728 | (define-key global-map [S-insert] 'yank) | |
729 | (define-key global-map [C-insert] 'copy-region-as-kill) | |
730 | (define-key global-map [S-delete] 'kill-region) | |
731 | ||
732 | ;; The following bindings are useful on Sun Type 3 keyboards | |
733 | ;; They implement the Get-Delete-Put (copy-cut-paste) | |
734 | ;; functions from sunview on the L6, L8 and L10 keys | |
735 | ;; Sam Steingold <sds@ptc.com> says that f16 is copy and f18 is paste. | |
736 | (define-key global-map [f16] 'copy-region-as-kill) | |
737 | (define-key global-map [f18] 'yank) | |
738 | (define-key global-map [f20] 'kill-region) | |
739 | ||
740 | ;; The following bindings are from Pete Forman. | |
741 | (global-set-key [f6] 'other-window) ; KNextPane F6 | |
742 | (global-set-key [delete] 'delete-char) ; KDelete Del | |
743 | (global-set-key [C-delete] 'kill-line) ; KEraseEndLine cDel | |
744 | (global-set-key [M-backspace] 'undo) ; KUndo aBS | |
745 | ||
746 | ;; The following bindings are taken from pc-mode.el | |
747 | ;; as suggested by RMS. | |
748 | ;; I only used the ones that are not covered above. | |
749 | (define-key function-key-map [M-delete] [?\M-d]) | |
750 | (global-set-key [C-M-delete] 'kill-sexp) | |
751 | (global-set-key [C-backspace] 'backward-kill-word) | |
752 | ;; Next line proposed by Eli Barzilay | |
753 | (global-set-key [C-escape] 'electric-buffer-list))) | |
215e89e5 RS |
754 | ;; |
755 | ;; setup | |
756 | ;; | |
b50c87ee KH |
757 | ;; Next line proposed by Eli Barzilay |
758 | (setq highlight-nonselected-windows nil) | |
215e89e5 RS |
759 | (setq transient-mark-mode t) |
760 | (setq mark-even-if-inactive t) | |
20c5a87d | 761 | (delete-selection-mode 1) |
2a811501 | 762 | ) |
83d1d58c RS |
763 | |
764 | ;;;###autoload | |
765 | (defcustom pc-selection-mode nil | |
766 | "Toggle PC Selection mode. | |
767 | Change mark behaviour to emulate Motif, MAC or MS-Windows cut and paste style, | |
768 | and cursor movement commands. | |
769 | This mode enables Delete Selection mode and Transient Mark mode. | |
770 | You must modify via \\[customize] for this variable to have an effect." | |
771 | :set (lambda (symbol value) | |
772 | (if value (pc-selection-mode))) | |
773 | :type 'boolean | |
774 | :group 'pc-select | |
775 | :require 'pc-select) | |
776 | ||
215e89e5 | 777 | ;;; pc-select.el ends here |