1 // SPDX-License-Identifier: GPL-2.0
35 /* Don't take this from <ctype.h>: 011-015 on the screen aren't spaces */
48 	.start = -1,
54 /* set reverse video on characters s-e of console with selection. */
57 	invert_screen(vc_sel.cons, s, e-s+2, true);  in highlight()
76  * clear_selection - remove current selection
81  * Locking: The caller must hold the console lock.
85 	highlight_pointer(-1); /* hide the pointer */  in clear_selection()
86 	if (vc_sel.start != -1) {  in clear_selection()
88 		vc_sel.start = -1;  in clear_selection()
104   0x03FFE000, /* digits and "-./"  */
115  * sel_loadlut() - load the LUT table
128 		return -EFAULT;  in sel_loadlut()
143 /* stores the char in UTF8 and returns the number of bytes used (1-4) */
178  * set_selection_user - set the current selection.
193 		return -EFAULT;  in set_selection_user()
206 			return -EPERM;  in set_selection_user()
219 	bp = kmalloc_array((vc_sel.end - vc_sel.start) / 2 + 1, unicode ? 4 : 1,  in vc_selection_store_chars()
224 		return -ENOMEM;  in vc_selection_store_chars()
238 		if (!((i + 2) % vc->vc_size_row)) {  in vc_selection_store_chars()
240 			   unless non-space at end of line. */  in vc_selection_store_chars()
248 	vc_sel.buf_len = bp - vc_sel.buffer;  in vc_selection_store_chars()
253 static int vc_do_selection(struct vc_data *vc, unsigned short mode, int ps,  in vc_do_selection()  argument
260 	case TIOCL_SELCHAR:	/* character-by-character selection */  in vc_do_selection()
261 		new_sel_start = ps;  in vc_do_selection()
264 	case TIOCL_SELWORD:	/* word-by-word selection */  in vc_do_selection()
265 		spc = is_space_on_vt(sel_pos(ps, unicode));  in vc_do_selection()
266 		for (new_sel_start = ps; ; ps -= 2) {  in vc_do_selection()
267 			if ((spc && !is_space_on_vt(sel_pos(ps, unicode))) ||  in vc_do_selection()
268 			    (!spc && !inword(sel_pos(ps, unicode))))  in vc_do_selection()
270 			new_sel_start = ps;  in vc_do_selection()
271 			if (!(ps % vc->vc_size_row))  in vc_do_selection()
281 			if (!((pe + 2) % vc->vc_size_row))  in vc_do_selection()
285 	case TIOCL_SELLINE:	/* line-by-line selection */  in vc_do_selection()
286 		new_sel_start = rounddown(ps, vc->vc_size_row);  in vc_do_selection()
287 		new_sel_end = rounddown(pe, vc->vc_size_row) +  in vc_do_selection()
288 			vc->vc_size_row - 2;  in vc_do_selection()
294 		return -EINVAL;  in vc_do_selection()
298 	highlight_pointer(-1);  in vc_do_selection()
302 		!atedge(new_sel_end, vc->vc_size_row) &&  in vc_do_selection()
306 			    atedge(pe, vc->vc_size_row))  in vc_do_selection()
311 	if (vc_sel.start == -1)	/* no current selection */  in vc_do_selection()
325 			highlight(new_sel_start, vc_sel.start - 2);  in vc_do_selection()
327 			highlight(vc_sel.start, new_sel_start - 2);  in vc_do_selection()
343 	int ps, pe;  in vc_selection()  local
347 	if (v->sel_mode == TIOCL_SELCLEAR) {  in vc_selection()
353 	v->xs = min_t(u16, v->xs - 1, vc->vc_cols - 1);  in vc_selection()
354 	v->ys = min_t(u16, v->ys - 1, vc->vc_rows - 1);  in vc_selection()
355 	v->xe = min_t(u16, v->xe - 1, vc->vc_cols - 1);  in vc_selection()
356 	v->ye = min_t(u16, v->ye - 1, vc->vc_rows - 1);  in vc_selection()
358 	if (mouse_reporting() && (v->sel_mode & TIOCL_SELMOUSEREPORT)) {  in vc_selection()
359 		mouse_report(tty, v->sel_mode & TIOCL_SELBUTTONMASK, v->xs,  in vc_selection()
360 			     v->ys);  in vc_selection()
364 	ps = v->ys * vc->vc_size_row + (v->xs << 1);  in vc_selection()
365 	pe = v->ye * vc->vc_size_row + (v->xe << 1);  in vc_selection()
366 	if (ps > pe)	/* make vc_sel.start <= vc_sel.end */  in vc_selection()
367 		swap(ps, pe);  in vc_selection()
374 	return vc_do_selection(vc, v->sel_mode, ps, pe);  in vc_selection()
400 	struct vc_data *vc = tty->driver_data;  in paste_selection()
413 		return -EIO;	/* ldisc was hung up */  in paste_selection()
414 	tty_buffer_lock_exclusive(&vc->port);  in paste_selection()
416 	add_wait_queue(&vc->paste_wait, &wait);  in paste_selection()
421 			ret = -EINTR;  in paste_selection()
431 		count = vc_sel.buf_len - pasted;  in paste_selection()
437 	remove_wait_queue(&vc->paste_wait, &wait);  in paste_selection()
440 	tty_buffer_unlock_exclusive(&vc->port);  in paste_selection()