vi.c revision 1.9 1 /* $NetBSD: vi.c,v 1.9 2002/03/18 16:01:01 christos Exp $ */
2
3 /*-
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Christos Zoulas of Cornell University.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 */
38
39 #include "config.h"
40 #if !defined(lint) && !defined(SCCSID)
41 #if 0
42 static char sccsid[] = "@(#)vi.c 8.1 (Berkeley) 6/4/93";
43 #else
44 __RCSID("$NetBSD: vi.c,v 1.9 2002/03/18 16:01:01 christos Exp $");
45 #endif
46 #endif /* not lint && not SCCSID */
47
48 /*
49 * vi.c: Vi mode commands.
50 */
51 #include "el.h"
52
53 private el_action_t cv_action(EditLine *, int);
54 private el_action_t cv_paste(EditLine *, int);
55
56 /* cv_action():
57 * Handle vi actions.
58 */
59 private el_action_t
60 cv_action(EditLine *el, int c)
61 {
62 char *cp, *kp;
63
64 if (el->el_chared.c_vcmd.action & DELETE) {
65 el->el_chared.c_vcmd.action = NOP;
66 el->el_chared.c_vcmd.pos = 0;
67
68 el->el_chared.c_undo.isize = 0;
69 el->el_chared.c_undo.dsize = 0;
70 kp = el->el_chared.c_undo.buf;
71 for (cp = el->el_line.buffer; cp < el->el_line.lastchar; cp++) {
72 *kp++ = *cp;
73 el->el_chared.c_undo.dsize++;
74 }
75
76 el->el_chared.c_undo.action = INSERT;
77 el->el_chared.c_undo.ptr = el->el_line.buffer;
78 el->el_line.lastchar = el->el_line.buffer;
79 el->el_line.cursor = el->el_line.buffer;
80 if (c & INSERT)
81 el->el_map.current = el->el_map.key;
82
83 return (CC_REFRESH);
84 }
85 el->el_chared.c_vcmd.pos = el->el_line.cursor;
86 el->el_chared.c_vcmd.action = c;
87 return (CC_ARGHACK);
88
89 #ifdef notdef
90 /*
91 * I don't think that this is needed. But we keep it for now
92 */
93 else
94 if (el_chared.c_vcmd.action == NOP) {
95 el->el_chared.c_vcmd.pos = el->el_line.cursor;
96 el->el_chared.c_vcmd.action = c;
97 return (CC_ARGHACK);
98 } else {
99 el->el_chared.c_vcmd.action = 0;
100 el->el_chared.c_vcmd.pos = 0;
101 return (CC_ERROR);
102 }
103 #endif
104 }
105
106
107 /* cv_paste():
108 * Paste previous deletion before or after the cursor
109 */
110 private el_action_t
111 cv_paste(EditLine *el, int c)
112 {
113 char *ptr;
114 c_undo_t *un = &el->el_chared.c_undo;
115
116 #ifdef DEBUG_PASTE
117 (void) fprintf(el->el_errfile, "Paste: %x \"%s\" +%d -%d\n",
118 un->action, un->buf, un->isize, un->dsize);
119 #endif
120 if (un->isize == 0)
121 return (CC_ERROR);
122
123 if (!c && el->el_line.cursor < el->el_line.lastchar)
124 el->el_line.cursor++;
125 ptr = el->el_line.cursor;
126
127 c_insert(el, (int) un->isize);
128 if (el->el_line.cursor + un->isize > el->el_line.lastchar)
129 return (CC_ERROR);
130 (void) memcpy(ptr, un->buf, un->isize);
131 return (CC_REFRESH);
132 }
133
134
135 /* vi_paste_next():
136 * Vi paste previous deletion to the right of the cursor
137 * [p]
138 */
139 protected el_action_t
140 /*ARGSUSED*/
141 vi_paste_next(EditLine *el, int c)
142 {
143
144 return (cv_paste(el, 0));
145 }
146
147
148 /* vi_paste_prev():
149 * Vi paste previous deletion to the left of the cursor
150 * [P]
151 */
152 protected el_action_t
153 /*ARGSUSED*/
154 vi_paste_prev(EditLine *el, int c)
155 {
156
157 return (cv_paste(el, 1));
158 }
159
160
161 /* vi_prev_space_word():
162 * Vi move to the previous space delimited word
163 * [B]
164 */
165 protected el_action_t
166 /*ARGSUSED*/
167 vi_prev_space_word(EditLine *el, int c)
168 {
169
170 if (el->el_line.cursor == el->el_line.buffer)
171 return (CC_ERROR);
172
173 el->el_line.cursor = cv_prev_word(el, el->el_line.cursor,
174 el->el_line.buffer,
175 el->el_state.argument,
176 cv__isword);
177
178 if (el->el_chared.c_vcmd.action & DELETE) {
179 cv_delfini(el);
180 return (CC_REFRESH);
181 }
182 return (CC_CURSOR);
183 }
184
185
186 /* vi_prev_word():
187 * Vi move to the previous word
188 * [B]
189 */
190 protected el_action_t
191 /*ARGSUSED*/
192 vi_prev_word(EditLine *el, int c)
193 {
194
195 if (el->el_line.cursor == el->el_line.buffer)
196 return (CC_ERROR);
197
198 el->el_line.cursor = cv_prev_word(el, el->el_line.cursor,
199 el->el_line.buffer,
200 el->el_state.argument,
201 ce__isword);
202
203 if (el->el_chared.c_vcmd.action & DELETE) {
204 cv_delfini(el);
205 return (CC_REFRESH);
206 }
207 return (CC_CURSOR);
208 }
209
210
211 /* vi_next_space_word():
212 * Vi move to the next space delimited word
213 * [W]
214 */
215 protected el_action_t
216 /*ARGSUSED*/
217 vi_next_space_word(EditLine *el, int c)
218 {
219
220 if (el->el_line.cursor == el->el_line.lastchar)
221 return (CC_ERROR);
222
223 el->el_line.cursor = cv_next_word(el, el->el_line.cursor,
224 el->el_line.lastchar,
225 el->el_state.argument,
226 cv__isword);
227
228 if (el->el_map.type == MAP_VI)
229 if (el->el_chared.c_vcmd.action & DELETE) {
230 cv_delfini(el);
231 return (CC_REFRESH);
232 }
233 return (CC_CURSOR);
234 }
235
236
237 /* vi_next_word():
238 * Vi move to the next word
239 * [w]
240 */
241 protected el_action_t
242 /*ARGSUSED*/
243 vi_next_word(EditLine *el, int c)
244 {
245
246 if (el->el_line.cursor == el->el_line.lastchar)
247 return (CC_ERROR);
248
249 el->el_line.cursor = cv_next_word(el, el->el_line.cursor,
250 el->el_line.lastchar,
251 el->el_state.argument,
252 ce__isword);
253
254 if (el->el_map.type == MAP_VI)
255 if (el->el_chared.c_vcmd.action & DELETE) {
256 cv_delfini(el);
257 return (CC_REFRESH);
258 }
259 return (CC_CURSOR);
260 }
261
262
263 /* vi_change_case():
264 * Vi change case of character under the cursor and advance one character
265 * [~]
266 */
267 protected el_action_t
268 vi_change_case(EditLine *el, int c)
269 {
270
271 if (el->el_line.cursor < el->el_line.lastchar) {
272 c = *el->el_line.cursor;
273 if (isupper(c))
274 *el->el_line.cursor++ = tolower(c);
275 else if (islower(c))
276 *el->el_line.cursor++ = toupper(c);
277 else
278 el->el_line.cursor++;
279 re_fastaddc(el);
280 return (CC_NORM);
281 }
282 return (CC_ERROR);
283 }
284
285
286 /* vi_change_meta():
287 * Vi change prefix command
288 * [c]
289 */
290 protected el_action_t
291 /*ARGSUSED*/
292 vi_change_meta(EditLine *el, int c)
293 {
294
295 /*
296 * Delete with insert == change: first we delete and then we leave in
297 * insert mode.
298 */
299 return (cv_action(el, DELETE | INSERT));
300 }
301
302
303 /* vi_insert_at_bol():
304 * Vi enter insert mode at the beginning of line
305 * [I]
306 */
307 protected el_action_t
308 /*ARGSUSED*/
309 vi_insert_at_bol(EditLine *el, int c)
310 {
311
312 el->el_line.cursor = el->el_line.buffer;
313 el->el_chared.c_vcmd.ins = el->el_line.cursor;
314
315 el->el_chared.c_undo.ptr = el->el_line.cursor;
316 el->el_chared.c_undo.action = DELETE;
317
318 el->el_map.current = el->el_map.key;
319 return (CC_CURSOR);
320 }
321
322
323 /* vi_replace_char():
324 * Vi replace character under the cursor with the next character typed
325 * [r]
326 */
327 protected el_action_t
328 /*ARGSUSED*/
329 vi_replace_char(EditLine *el, int c)
330 {
331
332 el->el_map.current = el->el_map.key;
333 el->el_state.inputmode = MODE_REPLACE_1;
334 el->el_chared.c_undo.action = CHANGE;
335 el->el_chared.c_undo.ptr = el->el_line.cursor;
336 el->el_chared.c_undo.isize = 0;
337 el->el_chared.c_undo.dsize = 0;
338 return (CC_NORM);
339 }
340
341
342 /* vi_replace_mode():
343 * Vi enter replace mode
344 * [R]
345 */
346 protected el_action_t
347 /*ARGSUSED*/
348 vi_replace_mode(EditLine *el, int c)
349 {
350
351 el->el_map.current = el->el_map.key;
352 el->el_state.inputmode = MODE_REPLACE;
353 el->el_chared.c_undo.action = CHANGE;
354 el->el_chared.c_undo.ptr = el->el_line.cursor;
355 el->el_chared.c_undo.isize = 0;
356 el->el_chared.c_undo.dsize = 0;
357 return (CC_NORM);
358 }
359
360
361 /* vi_substitute_char():
362 * Vi replace character under the cursor and enter insert mode
363 * [r]
364 */
365 protected el_action_t
366 /*ARGSUSED*/
367 vi_substitute_char(EditLine *el, int c)
368 {
369
370 c_delafter(el, el->el_state.argument);
371 el->el_map.current = el->el_map.key;
372 return (CC_REFRESH);
373 }
374
375
376 /* vi_substitute_line():
377 * Vi substitute entire line
378 * [S]
379 */
380 protected el_action_t
381 /*ARGSUSED*/
382 vi_substitute_line(EditLine *el, int c)
383 {
384
385 (void) em_kill_line(el, 0);
386 el->el_map.current = el->el_map.key;
387 return (CC_REFRESH);
388 }
389
390
391 /* vi_change_to_eol():
392 * Vi change to end of line
393 * [C]
394 */
395 protected el_action_t
396 /*ARGSUSED*/
397 vi_change_to_eol(EditLine *el, int c)
398 {
399
400 (void) ed_kill_line(el, 0);
401 el->el_map.current = el->el_map.key;
402 return (CC_REFRESH);
403 }
404
405
406 /* vi_insert():
407 * Vi enter insert mode
408 * [i]
409 */
410 protected el_action_t
411 /*ARGSUSED*/
412 vi_insert(EditLine *el, int c)
413 {
414
415 el->el_map.current = el->el_map.key;
416
417 el->el_chared.c_vcmd.ins = el->el_line.cursor;
418 el->el_chared.c_undo.ptr = el->el_line.cursor;
419 el->el_chared.c_undo.action = DELETE;
420
421 return (CC_NORM);
422 }
423
424
425 /* vi_add():
426 * Vi enter insert mode after the cursor
427 * [a]
428 */
429 protected el_action_t
430 /*ARGSUSED*/
431 vi_add(EditLine *el, int c)
432 {
433 int ret;
434
435 el->el_map.current = el->el_map.key;
436 if (el->el_line.cursor < el->el_line.lastchar) {
437 el->el_line.cursor++;
438 if (el->el_line.cursor > el->el_line.lastchar)
439 el->el_line.cursor = el->el_line.lastchar;
440 ret = CC_CURSOR;
441 } else
442 ret = CC_NORM;
443
444 el->el_chared.c_vcmd.ins = el->el_line.cursor;
445 el->el_chared.c_undo.ptr = el->el_line.cursor;
446 el->el_chared.c_undo.action = DELETE;
447
448 return (ret);
449 }
450
451
452 /* vi_add_at_eol():
453 * Vi enter insert mode at end of line
454 * [A]
455 */
456 protected el_action_t
457 /*ARGSUSED*/
458 vi_add_at_eol(EditLine *el, int c)
459 {
460
461 el->el_map.current = el->el_map.key;
462 el->el_line.cursor = el->el_line.lastchar;
463
464 /* Mark where insertion begins */
465 el->el_chared.c_vcmd.ins = el->el_line.lastchar;
466 el->el_chared.c_undo.ptr = el->el_line.lastchar;
467 el->el_chared.c_undo.action = DELETE;
468 return (CC_CURSOR);
469 }
470
471
472 /* vi_delete_meta():
473 * Vi delete prefix command
474 * [d]
475 */
476 protected el_action_t
477 /*ARGSUSED*/
478 vi_delete_meta(EditLine *el, int c)
479 {
480
481 return (cv_action(el, DELETE));
482 }
483
484
485 /* vi_end_word():
486 * Vi move to the end of the current space delimited word
487 * [E]
488 */
489 protected el_action_t
490 /*ARGSUSED*/
491 vi_end_word(EditLine *el, int c)
492 {
493
494 if (el->el_line.cursor == el->el_line.lastchar)
495 return (CC_ERROR);
496
497 el->el_line.cursor = cv__endword(el->el_line.cursor,
498 el->el_line.lastchar, el->el_state.argument);
499
500 if (el->el_chared.c_vcmd.action & DELETE) {
501 el->el_line.cursor++;
502 cv_delfini(el);
503 return (CC_REFRESH);
504 }
505 return (CC_CURSOR);
506 }
507
508
509 /* vi_to_end_word():
510 * Vi move to the end of the current word
511 * [e]
512 */
513 protected el_action_t
514 /*ARGSUSED*/
515 vi_to_end_word(EditLine *el, int c)
516 {
517
518 if (el->el_line.cursor == el->el_line.lastchar)
519 return (CC_ERROR);
520
521 el->el_line.cursor = cv__endword(el->el_line.cursor,
522 el->el_line.lastchar, el->el_state.argument);
523
524 if (el->el_chared.c_vcmd.action & DELETE) {
525 el->el_line.cursor++;
526 cv_delfini(el);
527 return (CC_REFRESH);
528 }
529 return (CC_CURSOR);
530 }
531
532
533 /* vi_undo():
534 * Vi undo last change
535 * [u]
536 */
537 protected el_action_t
538 /*ARGSUSED*/
539 vi_undo(EditLine *el, int c)
540 {
541 char *cp, *kp;
542 char temp;
543 int i, size;
544 c_undo_t *un = &el->el_chared.c_undo;
545
546 #ifdef DEBUG_UNDO
547 (void) fprintf(el->el_errfile, "Undo: %x \"%s\" +%d -%d\n",
548 un->action, un->buf, un->isize, un->dsize);
549 #endif
550 switch (un->action) {
551 case DELETE:
552 if (un->dsize == 0)
553 return (CC_NORM);
554
555 (void) memcpy(un->buf, un->ptr, un->dsize);
556 for (cp = un->ptr; cp <= el->el_line.lastchar; cp++)
557 *cp = cp[un->dsize];
558
559 el->el_line.lastchar -= un->dsize;
560 el->el_line.cursor = un->ptr;
561
562 un->action = INSERT;
563 un->isize = un->dsize;
564 un->dsize = 0;
565 break;
566
567 case DELETE | INSERT:
568 size = un->isize - un->dsize;
569 if (size > 0)
570 i = un->dsize;
571 else
572 i = un->isize;
573 cp = un->ptr;
574 kp = un->buf;
575 while (i-- > 0) {
576 temp = *kp;
577 *kp++ = *cp;
578 *cp++ = temp;
579 }
580 if (size > 0) {
581 el->el_line.cursor = cp;
582 c_insert(el, size);
583 while (size-- > 0 && cp < el->el_line.lastchar) {
584 temp = *kp;
585 *kp++ = *cp;
586 *cp++ = temp;
587 }
588 } else if (size < 0) {
589 size = -size;
590 for (; cp <= el->el_line.lastchar; cp++) {
591 *kp++ = *cp;
592 *cp = cp[size];
593 }
594 el->el_line.lastchar -= size;
595 }
596 el->el_line.cursor = un->ptr;
597 i = un->dsize;
598 un->dsize = un->isize;
599 un->isize = i;
600 break;
601
602 case INSERT:
603 if (un->isize == 0)
604 return (CC_NORM);
605
606 el->el_line.cursor = un->ptr;
607 c_insert(el, (int) un->isize);
608 (void) memcpy(un->ptr, un->buf, un->isize);
609 un->action = DELETE;
610 un->dsize = un->isize;
611 un->isize = 0;
612 break;
613
614 case CHANGE:
615 if (un->isize == 0)
616 return (CC_NORM);
617
618 el->el_line.cursor = un->ptr;
619 size = (int) (el->el_line.cursor - el->el_line.lastchar);
620 if (size < un->isize)
621 size = un->isize;
622 cp = un->ptr;
623 kp = un->buf;
624 for (i = 0; i < size; i++) {
625 temp = *kp;
626 *kp++ = *cp;
627 *cp++ = temp;
628 }
629 un->dsize = 0;
630 break;
631
632 default:
633 return (CC_ERROR);
634 }
635
636 return (CC_REFRESH);
637 }
638
639
640 /* vi_command_mode():
641 * Vi enter command mode (use alternative key bindings)
642 * [<ESC>]
643 */
644 protected el_action_t
645 /*ARGSUSED*/
646 vi_command_mode(EditLine *el, int c)
647 {
648 int size;
649
650 /* [Esc] cancels pending action */
651 el->el_chared.c_vcmd.ins = 0;
652 el->el_chared.c_vcmd.action = NOP;
653 el->el_chared.c_vcmd.pos = 0;
654
655 el->el_state.doingarg = 0;
656 size = el->el_chared.c_undo.ptr - el->el_line.cursor;
657 if (size < 0)
658 size = -size;
659 if (el->el_chared.c_undo.action == (INSERT | DELETE) ||
660 el->el_chared.c_undo.action == DELETE)
661 el->el_chared.c_undo.dsize = size;
662 else
663 el->el_chared.c_undo.isize = size;
664
665 el->el_state.inputmode = MODE_INSERT;
666 el->el_map.current = el->el_map.alt;
667 #ifdef VI_MOVE
668 if (el->el_line.cursor > el->el_line.buffer)
669 el->el_line.cursor--;
670 #endif
671 return (CC_CURSOR);
672 }
673
674
675 /* vi_zero():
676 * Vi move to the beginning of line
677 * [0]
678 */
679 protected el_action_t
680 vi_zero(EditLine *el, int c)
681 {
682
683 if (el->el_state.doingarg) {
684 if (el->el_state.argument > 1000000)
685 return (CC_ERROR);
686 el->el_state.argument =
687 (el->el_state.argument * 10) + (c - '0');
688 return (CC_ARGHACK);
689 } else {
690 el->el_line.cursor = el->el_line.buffer;
691 if (el->el_chared.c_vcmd.action & DELETE) {
692 cv_delfini(el);
693 return (CC_REFRESH);
694 }
695 return (CC_CURSOR);
696 }
697 }
698
699
700 /* vi_delete_prev_char():
701 * Vi move to previous character (backspace)
702 * [^H]
703 */
704 protected el_action_t
705 /*ARGSUSED*/
706 vi_delete_prev_char(EditLine *el, int c)
707 {
708
709 if (el->el_chared.c_vcmd.ins == 0)
710 return (CC_ERROR);
711
712 if (el->el_chared.c_vcmd.ins >
713 el->el_line.cursor - el->el_state.argument)
714 return (CC_ERROR);
715
716 c_delbefore(el, el->el_state.argument);
717 el->el_line.cursor -= el->el_state.argument;
718
719 return (CC_REFRESH);
720 }
721
722
723 /* vi_list_or_eof():
724 * Vi list choices for completion or indicate end of file if empty line
725 * [^D]
726 */
727 protected el_action_t
728 /*ARGSUSED*/
729 vi_list_or_eof(EditLine *el, int c)
730 {
731
732 #ifdef notyet
733 if (el->el_line.cursor == el->el_line.lastchar &&
734 el->el_line.cursor == el->el_line.buffer) {
735 #endif
736 term_overwrite(el, STReof, 4); /* then do a EOF */
737 term__flush();
738 return (CC_EOF);
739 #ifdef notyet
740 } else {
741 re_goto_bottom(el);
742 *el->el_line.lastchar = '\0'; /* just in case */
743 return (CC_LIST_CHOICES);
744 }
745 #endif
746 }
747
748
749 /* vi_kill_line_prev():
750 * Vi cut from beginning of line to cursor
751 * [^U]
752 */
753 protected el_action_t
754 /*ARGSUSED*/
755 vi_kill_line_prev(EditLine *el, int c)
756 {
757 char *kp, *cp;
758
759 cp = el->el_line.buffer;
760 kp = el->el_chared.c_kill.buf;
761 while (cp < el->el_line.cursor)
762 *kp++ = *cp++; /* copy it */
763 el->el_chared.c_kill.last = kp;
764 c_delbefore(el, el->el_line.cursor - el->el_line.buffer);
765 el->el_line.cursor = el->el_line.buffer; /* zap! */
766 return (CC_REFRESH);
767 }
768
769
770 /* vi_search_prev():
771 * Vi search history previous
772 * [?]
773 */
774 protected el_action_t
775 /*ARGSUSED*/
776 vi_search_prev(EditLine *el, int c)
777 {
778
779 return (cv_search(el, ED_SEARCH_PREV_HISTORY));
780 }
781
782
783 /* vi_search_next():
784 * Vi search history next
785 * [/]
786 */
787 protected el_action_t
788 /*ARGSUSED*/
789 vi_search_next(EditLine *el, int c)
790 {
791
792 return (cv_search(el, ED_SEARCH_NEXT_HISTORY));
793 }
794
795
796 /* vi_repeat_search_next():
797 * Vi repeat current search in the same search direction
798 * [n]
799 */
800 protected el_action_t
801 /*ARGSUSED*/
802 vi_repeat_search_next(EditLine *el, int c)
803 {
804
805 if (el->el_search.patlen == 0)
806 return (CC_ERROR);
807 else
808 return (cv_repeat_srch(el, el->el_search.patdir));
809 }
810
811
812 /* vi_repeat_search_prev():
813 * Vi repeat current search in the opposite search direction
814 * [N]
815 */
816 /*ARGSUSED*/
817 protected el_action_t
818 vi_repeat_search_prev(EditLine *el, int c)
819 {
820
821 if (el->el_search.patlen == 0)
822 return (CC_ERROR);
823 else
824 return (cv_repeat_srch(el,
825 el->el_search.patdir == ED_SEARCH_PREV_HISTORY ?
826 ED_SEARCH_NEXT_HISTORY : ED_SEARCH_PREV_HISTORY));
827 }
828
829
830 /* vi_next_char():
831 * Vi move to the character specified next
832 * [f]
833 */
834 protected el_action_t
835 /*ARGSUSED*/
836 vi_next_char(EditLine *el, int c)
837 {
838 char ch;
839
840 if (el_getc(el, &ch) != 1)
841 return (ed_end_of_file(el, 0));
842
843 el->el_search.chadir = CHAR_FWD;
844 el->el_search.chacha = ch;
845
846 return (cv_csearch_fwd(el, ch, el->el_state.argument, 0));
847
848 }
849
850
851 /* vi_prev_char():
852 * Vi move to the character specified previous
853 * [F]
854 */
855 protected el_action_t
856 /*ARGSUSED*/
857 vi_prev_char(EditLine *el, int c)
858 {
859 char ch;
860
861 if (el_getc(el, &ch) != 1)
862 return (ed_end_of_file(el, 0));
863
864 el->el_search.chadir = CHAR_BACK;
865 el->el_search.chacha = ch;
866
867 return (cv_csearch_back(el, ch, el->el_state.argument, 0));
868 }
869
870
871 /* vi_to_next_char():
872 * Vi move up to the character specified next
873 * [t]
874 */
875 protected el_action_t
876 /*ARGSUSED*/
877 vi_to_next_char(EditLine *el, int c)
878 {
879 char ch;
880
881 if (el_getc(el, &ch) != 1)
882 return (ed_end_of_file(el, 0));
883
884 return (cv_csearch_fwd(el, ch, el->el_state.argument, 1));
885
886 }
887
888
889 /* vi_to_prev_char():
890 * Vi move up to the character specified previous
891 * [T]
892 */
893 protected el_action_t
894 /*ARGSUSED*/
895 vi_to_prev_char(EditLine *el, int c)
896 {
897 char ch;
898
899 if (el_getc(el, &ch) != 1)
900 return (ed_end_of_file(el, 0));
901
902 return (cv_csearch_back(el, ch, el->el_state.argument, 1));
903 }
904
905
906 /* vi_repeat_next_char():
907 * Vi repeat current character search in the same search direction
908 * [;]
909 */
910 protected el_action_t
911 /*ARGSUSED*/
912 vi_repeat_next_char(EditLine *el, int c)
913 {
914
915 if (el->el_search.chacha == 0)
916 return (CC_ERROR);
917
918 return (el->el_search.chadir == CHAR_FWD
919 ? cv_csearch_fwd(el, el->el_search.chacha,
920 el->el_state.argument, 0)
921 : cv_csearch_back(el, el->el_search.chacha,
922 el->el_state.argument, 0));
923 }
924
925
926 /* vi_repeat_prev_char():
927 * Vi repeat current character search in the opposite search direction
928 * [,]
929 */
930 protected el_action_t
931 /*ARGSUSED*/
932 vi_repeat_prev_char(EditLine *el, int c)
933 {
934
935 if (el->el_search.chacha == 0)
936 return (CC_ERROR);
937
938 return el->el_search.chadir == CHAR_BACK ?
939 cv_csearch_fwd(el, el->el_search.chacha, el->el_state.argument, 0) :
940 cv_csearch_back(el, el->el_search.chacha, el->el_state.argument, 0);
941 }
942