1 /* $NetBSD: common.c,v 1.49 2020/03/30 06:54:37 ryo 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. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 #include "config.h"
36 #if !defined(lint) && !defined(SCCSID)
37 #if 0
38 static char sccsid[] = "@(#)common.c 8.1 (Berkeley) 6/4/93";
39 #else
40 __RCSID("$NetBSD: common.c,v 1.49 2020/03/30 06:54:37 ryo Exp $");
41 #endif
42 #endif /* not lint && not SCCSID */
43
44 /*
45 * common.c: Common Editor functions
46 */
47 #include <ctype.h>
48 #include <string.h>
49
50 #include "el.h"
51 #include "common.h"
52 #include "fcns.h"
53 #include "parse.h"
54 #include "vi.h"
55
56 /* ed_end_of_file():
57 * Indicate end of file
58 * [^D]
59 */
60 libedit_private el_action_t
61 /*ARGSUSED*/
ed_end_of_file(EditLine * el,wint_t c)62 ed_end_of_file(EditLine *el, wint_t c __attribute__((__unused__)))
63 {
64
65 re_goto_bottom(el);
66 *el->el_line.lastchar = '\0';
67 return CC_EOF;
68 }
69
70
71 /* ed_insert():
72 * Add character to the line
73 * Insert a character [bound to all insert keys]
74 */
75 libedit_private el_action_t
ed_insert(EditLine * el,wint_t c)76 ed_insert(EditLine *el, wint_t c)
77 {
78 int count = el->el_state.argument;
79
80 if (c == '\0')
81 return CC_ERROR;
82
83 if (el->el_line.lastchar + el->el_state.argument >=
84 el->el_line.limit) {
85 /* end of buffer space, try to allocate more */
86 if (!ch_enlargebufs(el, (size_t) count))
87 return CC_ERROR; /* error allocating more */
88 }
89
90 if (count == 1) {
91 if (el->el_state.inputmode == MODE_INSERT
92 || el->el_line.cursor >= el->el_line.lastchar)
93 c_insert(el, 1);
94
95 *el->el_line.cursor++ = c;
96 re_fastaddc(el); /* fast refresh for one char. */
97 } else {
98 if (el->el_state.inputmode != MODE_REPLACE_1)
99 c_insert(el, el->el_state.argument);
100
101 while (count-- && el->el_line.cursor < el->el_line.lastchar)
102 *el->el_line.cursor++ = c;
103 re_refresh(el);
104 }
105
106 if (el->el_state.inputmode == MODE_REPLACE_1)
107 return vi_command_mode(el, 0);
108
109 return CC_NORM;
110 }
111
112
113 /* ed_delete_prev_word():
114 * Delete from beginning of current word to cursor
115 * [M-^?] [^W]
116 */
117 libedit_private el_action_t
118 /*ARGSUSED*/
ed_delete_prev_word(EditLine * el,wint_t c)119 ed_delete_prev_word(EditLine *el, wint_t c __attribute__((__unused__)))
120 {
121 wchar_t *cp, *p, *kp;
122
123 if (el->el_line.cursor == el->el_line.buffer)
124 return CC_ERROR;
125
126 cp = c__prev_word(el->el_line.cursor, el->el_line.buffer,
127 el->el_state.argument, ce__isword);
128
129 for (p = cp, kp = el->el_chared.c_kill.buf; p < el->el_line.cursor; p++)
130 *kp++ = *p;
131 el->el_chared.c_kill.last = kp;
132
133 c_delbefore(el, (int)(el->el_line.cursor - cp));/* delete before dot */
134 el->el_line.cursor = cp;
135 if (el->el_line.cursor < el->el_line.buffer)
136 el->el_line.cursor = el->el_line.buffer; /* bounds check */
137 return CC_REFRESH;
138 }
139
140
141 /* ed_delete_next_char():
142 * Delete character under cursor
143 * [^D] [x]
144 */
145 libedit_private el_action_t
146 /*ARGSUSED*/
ed_delete_next_char(EditLine * el,wint_t c)147 ed_delete_next_char(EditLine *el, wint_t c __attribute__((__unused__)))
148 {
149 #ifdef DEBUG_EDIT
150 #define EL el->el_line
151 (void) fprintf(el->el_errfile,
152 "\nD(b: %p(%ls) c: %p(%ls) last: %p(%ls) limit: %p(%ls)\n",
153 EL.buffer, EL.buffer, EL.cursor, EL.cursor, EL.lastchar,
154 EL.lastchar, EL.limit, EL.limit);
155 #endif
156 if (el->el_line.cursor == el->el_line.lastchar) {
157 /* if I'm at the end */
158 if (el->el_map.type == MAP_VI) {
159 if (el->el_line.cursor == el->el_line.buffer) {
160 /* if I'm also at the beginning */
161 #ifdef KSHVI
162 return CC_ERROR;
163 #else
164 /* then do an EOF */
165 terminal_writec(el, c);
166 return CC_EOF;
167 #endif
168 } else {
169 #ifdef KSHVI
170 el->el_line.cursor--;
171 #else
172 return CC_ERROR;
173 #endif
174 }
175 } else
176 return CC_ERROR;
177 }
178 c_delafter(el, el->el_state.argument); /* delete after dot */
179 if (el->el_map.type == MAP_VI &&
180 el->el_line.cursor >= el->el_line.lastchar &&
181 el->el_line.cursor > el->el_line.buffer)
182 /* bounds check */
183 el->el_line.cursor = el->el_line.lastchar - 1;
184 return CC_REFRESH;
185 }
186
187
188 /* ed_kill_line():
189 * Cut to the end of line
190 * [^K] [^K]
191 */
192 libedit_private el_action_t
193 /*ARGSUSED*/
ed_kill_line(EditLine * el,wint_t c)194 ed_kill_line(EditLine *el, wint_t c __attribute__((__unused__)))
195 {
196 wchar_t *kp, *cp;
197
198 cp = el->el_line.cursor;
199 kp = el->el_chared.c_kill.buf;
200 while (cp < el->el_line.lastchar)
201 *kp++ = *cp++; /* copy it */
202 el->el_chared.c_kill.last = kp;
203 /* zap! -- delete to end */
204 el->el_line.lastchar = el->el_line.cursor;
205 return CC_REFRESH;
206 }
207
208
209 /* ed_move_to_end():
210 * Move cursor to the end of line
211 * [^E] [^E]
212 */
213 libedit_private el_action_t
214 /*ARGSUSED*/
ed_move_to_end(EditLine * el,wint_t c)215 ed_move_to_end(EditLine *el, wint_t c __attribute__((__unused__)))
216 {
217
218 el->el_line.cursor = el->el_line.lastchar;
219 if (el->el_map.type == MAP_VI) {
220 if (el->el_chared.c_vcmd.action != NOP) {
221 cv_delfini(el);
222 return CC_REFRESH;
223 }
224 #ifdef VI_MOVE
225 el->el_line.cursor--;
226 #endif
227 }
228 return CC_CURSOR;
229 }
230
231
232 /* ed_move_to_beg():
233 * Move cursor to the beginning of line
234 * [^A] [^A]
235 */
236 libedit_private el_action_t
237 /*ARGSUSED*/
ed_move_to_beg(EditLine * el,wint_t c)238 ed_move_to_beg(EditLine *el, wint_t c __attribute__((__unused__)))
239 {
240
241 el->el_line.cursor = el->el_line.buffer;
242
243 if (el->el_map.type == MAP_VI) {
244 /* We want FIRST non space character */
245 while (iswspace(*el->el_line.cursor))
246 el->el_line.cursor++;
247 if (el->el_chared.c_vcmd.action != NOP) {
248 cv_delfini(el);
249 return CC_REFRESH;
250 }
251 }
252 return CC_CURSOR;
253 }
254
255
256 /* ed_transpose_chars():
257 * Exchange the character to the left of the cursor with the one under it
258 * [^T] [^T]
259 */
260 libedit_private el_action_t
ed_transpose_chars(EditLine * el,wint_t c)261 ed_transpose_chars(EditLine *el, wint_t c)
262 {
263
264 if (el->el_line.cursor < el->el_line.lastchar) {
265 if (el->el_line.lastchar <= &el->el_line.buffer[1])
266 return CC_ERROR;
267 else
268 el->el_line.cursor++;
269 }
270 if (el->el_line.cursor > &el->el_line.buffer[1]) {
271 /* must have at least two chars entered */
272 c = el->el_line.cursor[-2];
273 el->el_line.cursor[-2] = el->el_line.cursor[-1];
274 el->el_line.cursor[-1] = c;
275 return CC_REFRESH;
276 } else
277 return CC_ERROR;
278 }
279
280
281 /* ed_next_char():
282 * Move to the right one character
283 * [^F] [^F]
284 */
285 libedit_private el_action_t
286 /*ARGSUSED*/
ed_next_char(EditLine * el,wint_t c)287 ed_next_char(EditLine *el, wint_t c __attribute__((__unused__)))
288 {
289 wchar_t *lim = el->el_line.lastchar;
290
291 if (el->el_line.cursor >= lim ||
292 (el->el_line.cursor == lim - 1 &&
293 el->el_map.type == MAP_VI &&
294 el->el_chared.c_vcmd.action == NOP))
295 return CC_ERROR;
296
297 el->el_line.cursor += el->el_state.argument;
298 if (el->el_line.cursor > lim)
299 el->el_line.cursor = lim;
300
301 if (el->el_map.type == MAP_VI)
302 if (el->el_chared.c_vcmd.action != NOP) {
303 cv_delfini(el);
304 return CC_REFRESH;
305 }
306 return CC_CURSOR;
307 }
308
309
310 /* ed_prev_word():
311 * Move to the beginning of the current word
312 * [M-b] [b]
313 */
314 libedit_private el_action_t
315 /*ARGSUSED*/
ed_prev_word(EditLine * el,wint_t c)316 ed_prev_word(EditLine *el, wint_t c __attribute__((__unused__)))
317 {
318
319 if (el->el_line.cursor == el->el_line.buffer)
320 return CC_ERROR;
321
322 el->el_line.cursor = c__prev_word(el->el_line.cursor,
323 el->el_line.buffer,
324 el->el_state.argument,
325 ce__isword);
326
327 if (el->el_map.type == MAP_VI)
328 if (el->el_chared.c_vcmd.action != NOP) {
329 cv_delfini(el);
330 return CC_REFRESH;
331 }
332 return CC_CURSOR;
333 }
334
335
336 /* ed_prev_char():
337 * Move to the left one character
338 * [^B] [^B]
339 */
340 libedit_private el_action_t
341 /*ARGSUSED*/
ed_prev_char(EditLine * el,wint_t c)342 ed_prev_char(EditLine *el, wint_t c __attribute__((__unused__)))
343 {
344
345 if (el->el_line.cursor > el->el_line.buffer) {
346 el->el_line.cursor -= el->el_state.argument;
347 if (el->el_line.cursor < el->el_line.buffer)
348 el->el_line.cursor = el->el_line.buffer;
349
350 if (el->el_map.type == MAP_VI)
351 if (el->el_chared.c_vcmd.action != NOP) {
352 cv_delfini(el);
353 return CC_REFRESH;
354 }
355 return CC_CURSOR;
356 } else
357 return CC_ERROR;
358 }
359
360
361 /* ed_quoted_insert():
362 * Add the next character typed verbatim
363 * [^V] [^V]
364 */
365 libedit_private el_action_t
366 /*ARGSUSED*/
ed_quoted_insert(EditLine * el,wint_t c)367 ed_quoted_insert(EditLine *el, wint_t c __attribute__((__unused__)))
368 {
369 int num;
370 wchar_t ch;
371
372 tty_quotemode(el);
373 num = el_wgetc(el, &ch);
374 tty_noquotemode(el);
375 if (num == 1)
376 return ed_insert(el, ch);
377 else
378 return ed_end_of_file(el, 0);
379 }
380
381
382 /* ed_digit():
383 * Adds to argument or enters a digit
384 */
385 libedit_private el_action_t
ed_digit(EditLine * el,wint_t c)386 ed_digit(EditLine *el, wint_t c)
387 {
388
389 if (!iswdigit(c))
390 return CC_ERROR;
391
392 if (el->el_state.doingarg) {
393 /* if doing an arg, add this in... */
394 if (el->el_state.lastcmd == EM_UNIVERSAL_ARGUMENT)
395 el->el_state.argument = c - '0';
396 else {
397 if (el->el_state.argument > 1000000)
398 return CC_ERROR;
399 el->el_state.argument =
400 (el->el_state.argument * 10) + (c - '0');
401 }
402 return CC_ARGHACK;
403 }
404
405 return ed_insert(el, c);
406 }
407
408
409 /* ed_argument_digit():
410 * Digit that starts argument
411 * For ESC-n
412 */
413 libedit_private el_action_t
ed_argument_digit(EditLine * el,wint_t c)414 ed_argument_digit(EditLine *el, wint_t c)
415 {
416
417 if (!iswdigit(c))
418 return CC_ERROR;
419
420 if (el->el_state.doingarg) {
421 if (el->el_state.argument > 1000000)
422 return CC_ERROR;
423 el->el_state.argument = (el->el_state.argument * 10) +
424 (c - '0');
425 } else { /* else starting an argument */
426 el->el_state.argument = c - '0';
427 el->el_state.doingarg = 1;
428 }
429 return CC_ARGHACK;
430 }
431
432
433 /* ed_unassigned():
434 * Indicates unbound character
435 * Bound to keys that are not assigned
436 */
437 libedit_private el_action_t
438 /*ARGSUSED*/
ed_unassigned(EditLine * el,wint_t c)439 ed_unassigned(EditLine *el __attribute__((__unused__)),
440 wint_t c __attribute__((__unused__)))
441 {
442
443 return CC_ERROR;
444 }
445
446
447 /* ed_ignore():
448 * Input characters that have no effect
449 * [^C ^O ^Q ^S ^Z ^\ ^]] [^C ^O ^Q ^S ^\]
450 */
451 libedit_private el_action_t
452 /*ARGSUSED*/
ed_ignore(EditLine * el,wint_t c)453 ed_ignore(EditLine *el __attribute__((__unused__)),
454 wint_t c __attribute__((__unused__)))
455 {
456
457 return CC_NORM;
458 }
459
460
461 /* ed_newline():
462 * Execute command
463 * [^J]
464 */
465 libedit_private el_action_t
466 /*ARGSUSED*/
ed_newline(EditLine * el,wint_t c)467 ed_newline(EditLine *el, wint_t c __attribute__((__unused__)))
468 {
469
470 re_goto_bottom(el);
471 *el->el_line.lastchar++ = '\n';
472 *el->el_line.lastchar = '\0';
473 return CC_NEWLINE;
474 }
475
476
477 /* ed_delete_prev_char():
478 * Delete the character to the left of the cursor
479 * [^?]
480 */
481 libedit_private el_action_t
482 /*ARGSUSED*/
ed_delete_prev_char(EditLine * el,wint_t c)483 ed_delete_prev_char(EditLine *el, wint_t c __attribute__((__unused__)))
484 {
485
486 if (el->el_line.cursor <= el->el_line.buffer)
487 return CC_ERROR;
488
489 c_delbefore(el, el->el_state.argument);
490 el->el_line.cursor -= el->el_state.argument;
491 if (el->el_line.cursor < el->el_line.buffer)
492 el->el_line.cursor = el->el_line.buffer;
493 return CC_REFRESH;
494 }
495
496
497 /* ed_clear_screen():
498 * Clear screen leaving current line at the top
499 * [^L]
500 */
501 libedit_private el_action_t
502 /*ARGSUSED*/
ed_clear_screen(EditLine * el,wint_t c)503 ed_clear_screen(EditLine *el, wint_t c __attribute__((__unused__)))
504 {
505
506 terminal_clear_screen(el); /* clear the whole real screen */
507 re_clear_display(el); /* reset everything */
508 return CC_REFRESH;
509 }
510
511
512 /* ed_redisplay():
513 * Redisplay everything
514 * ^R
515 */
516 libedit_private el_action_t
517 /*ARGSUSED*/
ed_redisplay(EditLine * el,wint_t c)518 ed_redisplay(EditLine *el __attribute__((__unused__)),
519 wint_t c __attribute__((__unused__)))
520 {
521
522 return CC_REDISPLAY;
523 }
524
525
526 /* ed_start_over():
527 * Erase current line and start from scratch
528 * [^G]
529 */
530 libedit_private el_action_t
531 /*ARGSUSED*/
ed_start_over(EditLine * el,wint_t c)532 ed_start_over(EditLine *el, wint_t c __attribute__((__unused__)))
533 {
534
535 ch_reset(el);
536 return CC_REFRESH;
537 }
538
539
540 /* ed_sequence_lead_in():
541 * First character in a bound sequence
542 * Placeholder for external keys
543 */
544 libedit_private el_action_t
545 /*ARGSUSED*/
ed_sequence_lead_in(EditLine * el,wint_t c)546 ed_sequence_lead_in(EditLine *el __attribute__((__unused__)),
547 wint_t c __attribute__((__unused__)))
548 {
549
550 return CC_NORM;
551 }
552
553
554 /* ed_prev_history():
555 * Move to the previous history line
556 * [^P] [k]
557 */
558 libedit_private el_action_t
559 /*ARGSUSED*/
ed_prev_history(EditLine * el,wint_t c)560 ed_prev_history(EditLine *el, wint_t c __attribute__((__unused__)))
561 {
562 char beep = 0;
563 int sv_event = el->el_history.eventno;
564
565 el->el_chared.c_undo.len = -1;
566 *el->el_line.lastchar = '\0'; /* just in case */
567
568 if (el->el_history.eventno == 0) { /* save the current buffer
569 * away */
570 (void) wcsncpy(el->el_history.buf, el->el_line.buffer,
571 EL_BUFSIZ);
572 el->el_history.last = el->el_history.buf +
573 (el->el_line.lastchar - el->el_line.buffer);
574 }
575 el->el_history.eventno += el->el_state.argument;
576
577 if (hist_get(el) == CC_ERROR) {
578 if (el->el_map.type == MAP_VI) {
579 el->el_history.eventno = sv_event;
580 }
581 beep = 1;
582 /* el->el_history.eventno was fixed by first call */
583 (void) hist_get(el);
584 }
585 if (beep)
586 return CC_REFRESH_BEEP;
587 return CC_REFRESH;
588 }
589
590
591 /* ed_next_history():
592 * Move to the next history line
593 * [^N] [j]
594 */
595 libedit_private el_action_t
596 /*ARGSUSED*/
ed_next_history(EditLine * el,wint_t c)597 ed_next_history(EditLine *el, wint_t c __attribute__((__unused__)))
598 {
599 el_action_t beep = CC_REFRESH, rval;
600
601 el->el_chared.c_undo.len = -1;
602 *el->el_line.lastchar = '\0'; /* just in case */
603
604 el->el_history.eventno -= el->el_state.argument;
605
606 if (el->el_history.eventno < 0) {
607 el->el_history.eventno = 0;
608 beep = CC_REFRESH_BEEP;
609 }
610 rval = hist_get(el);
611 if (rval == CC_REFRESH)
612 return beep;
613 return rval;
614
615 }
616
617
618 /* ed_search_prev_history():
619 * Search previous in history for a line matching the current
620 * next search history [M-P] [K]
621 */
622 libedit_private el_action_t
623 /*ARGSUSED*/
ed_search_prev_history(EditLine * el,wint_t c)624 ed_search_prev_history(EditLine *el, wint_t c __attribute__((__unused__)))
625 {
626 const wchar_t *hp;
627 int h;
628 int found = 0;
629
630 el->el_chared.c_vcmd.action = NOP;
631 el->el_chared.c_undo.len = -1;
632 *el->el_line.lastchar = '\0'; /* just in case */
633 if (el->el_history.eventno < 0) {
634 #ifdef DEBUG_EDIT
635 (void) fprintf(el->el_errfile,
636 "e_prev_search_hist(): eventno < 0;\n");
637 #endif
638 el->el_history.eventno = 0;
639 return CC_ERROR;
640 }
641 if (el->el_history.eventno == 0) {
642 (void) wcsncpy(el->el_history.buf, el->el_line.buffer,
643 EL_BUFSIZ);
644 el->el_history.last = el->el_history.buf +
645 (el->el_line.lastchar - el->el_line.buffer);
646 }
647 if (el->el_history.ref == NULL)
648 return CC_ERROR;
649
650 hp = HIST_FIRST(el);
651 if (hp == NULL)
652 return CC_ERROR;
653
654 c_setpat(el); /* Set search pattern !! */
655
656 for (h = 1; h <= el->el_history.eventno; h++)
657 hp = HIST_NEXT(el);
658
659 while (hp != NULL) {
660 #ifdef SDEBUG
661 (void) fprintf(el->el_errfile, "Comparing with \"%ls\"\n", hp);
662 #endif
663 if ((wcsncmp(hp, el->el_line.buffer, (size_t)
664 (el->el_line.lastchar - el->el_line.buffer)) ||
665 hp[el->el_line.lastchar - el->el_line.buffer]) &&
666 c_hmatch(el, hp)) {
667 found = 1;
668 break;
669 }
670 h++;
671 hp = HIST_NEXT(el);
672 }
673
674 if (!found) {
675 #ifdef SDEBUG
676 (void) fprintf(el->el_errfile, "not found\n");
677 #endif
678 return CC_ERROR;
679 }
680 el->el_history.eventno = h;
681
682 return hist_get(el);
683 }
684
685
686 /* ed_search_next_history():
687 * Search next in history for a line matching the current
688 * [M-N] [J]
689 */
690 libedit_private el_action_t
691 /*ARGSUSED*/
ed_search_next_history(EditLine * el,wint_t c)692 ed_search_next_history(EditLine *el, wint_t c __attribute__((__unused__)))
693 {
694 const wchar_t *hp;
695 int h;
696 int found = 0;
697
698 el->el_chared.c_vcmd.action = NOP;
699 el->el_chared.c_undo.len = -1;
700 *el->el_line.lastchar = '\0'; /* just in case */
701
702 if (el->el_history.eventno == 0)
703 return CC_ERROR;
704
705 if (el->el_history.ref == NULL)
706 return CC_ERROR;
707
708 hp = HIST_FIRST(el);
709 if (hp == NULL)
710 return CC_ERROR;
711
712 c_setpat(el); /* Set search pattern !! */
713
714 for (h = 1; h < el->el_history.eventno && hp; h++) {
715 #ifdef SDEBUG
716 (void) fprintf(el->el_errfile, "Comparing with \"%ls\"\n", hp);
717 #endif
718 if ((wcsncmp(hp, el->el_line.buffer, (size_t)
719 (el->el_line.lastchar - el->el_line.buffer)) ||
720 hp[el->el_line.lastchar - el->el_line.buffer]) &&
721 c_hmatch(el, hp))
722 found = h;
723 hp = HIST_NEXT(el);
724 }
725
726 if (!found) { /* is it the current history number? */
727 if (!c_hmatch(el, el->el_history.buf)) {
728 #ifdef SDEBUG
729 (void) fprintf(el->el_errfile, "not found\n");
730 #endif
731 return CC_ERROR;
732 }
733 }
734 el->el_history.eventno = found;
735
736 return hist_get(el);
737 }
738
739
740 /* ed_prev_line():
741 * Move up one line
742 * Could be [k] [^p]
743 */
744 libedit_private el_action_t
745 /*ARGSUSED*/
ed_prev_line(EditLine * el,wint_t c)746 ed_prev_line(EditLine *el, wint_t c __attribute__((__unused__)))
747 {
748 wchar_t *ptr;
749 int nchars = c_hpos(el);
750
751 /*
752 * Move to the line requested
753 */
754 if (*(ptr = el->el_line.cursor) == '\n')
755 ptr--;
756
757 for (; ptr >= el->el_line.buffer; ptr--)
758 if (*ptr == '\n' && --el->el_state.argument <= 0)
759 break;
760
761 if (el->el_state.argument > 0)
762 return CC_ERROR;
763
764 /*
765 * Move to the beginning of the line
766 */
767 for (ptr--; ptr >= el->el_line.buffer && *ptr != '\n'; ptr--)
768 continue;
769
770 /*
771 * Move to the character requested
772 */
773 for (ptr++;
774 nchars-- > 0 && ptr < el->el_line.lastchar && *ptr != '\n';
775 ptr++)
776 continue;
777
778 el->el_line.cursor = ptr;
779 return CC_CURSOR;
780 }
781
782
783 /* ed_next_line():
784 * Move down one line
785 * Could be [j] [^n]
786 */
787 libedit_private el_action_t
788 /*ARGSUSED*/
ed_next_line(EditLine * el,wint_t c)789 ed_next_line(EditLine *el, wint_t c __attribute__((__unused__)))
790 {
791 wchar_t *ptr;
792 int nchars = c_hpos(el);
793
794 /*
795 * Move to the line requested
796 */
797 for (ptr = el->el_line.cursor; ptr < el->el_line.lastchar; ptr++)
798 if (*ptr == '\n' && --el->el_state.argument <= 0)
799 break;
800
801 if (el->el_state.argument > 0)
802 return CC_ERROR;
803
804 /*
805 * Move to the character requested
806 */
807 for (ptr++;
808 nchars-- > 0 && ptr < el->el_line.lastchar && *ptr != '\n';
809 ptr++)
810 continue;
811
812 el->el_line.cursor = ptr;
813 return CC_CURSOR;
814 }
815
816
817 /* ed_command():
818 * Editline extended command
819 * [M-X] [:]
820 */
821 libedit_private el_action_t
822 /*ARGSUSED*/
ed_command(EditLine * el,wint_t c)823 ed_command(EditLine *el, wint_t c __attribute__((__unused__)))
824 {
825 wchar_t tmpbuf[EL_BUFSIZ];
826 int tmplen;
827
828 tmplen = c_gets(el, tmpbuf, L"\n: ");
829 terminal__putc(el, '\n');
830
831 if (tmplen < 0 || (tmpbuf[tmplen] = 0, parse_line(el, tmpbuf)) == -1)
832 terminal_beep(el);
833
834 el->el_map.current = el->el_map.key;
835 re_clear_display(el);
836 return CC_REFRESH;
837 }
838