1/*-
2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Christos Zoulas of Cornell University.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
|
32 * $NetBSD: common.c,v 1.18 2005/08/08 14:05:37 christos Exp $
|
| 32 * $NetBSD: common.c,v 1.19 2006/03/06 21:11:56 christos Exp $ |
33 */
34
35#if !defined(lint) && !defined(SCCSID)
36static char sccsid[] = "@(#)common.c 8.1 (Berkeley) 6/4/93";
37#endif /* not lint && not SCCSID */
38#include <sys/cdefs.h>
|
39__FBSDID("$FreeBSD: head/lib/libedit/common.c 148900 2005-08-09 13:37:59Z stefanf $");
|
| 39__FBSDID("$FreeBSD: head/lib/libedit/common.c 167457 2007-03-11 18:30:22Z stefanf $"); |
40
41/*
42 * common.c: Common Editor functions
43 */
44#include "sys.h"
45#include "el.h"
46
47/* ed_end_of_file():
48 * Indicate end of file
49 * [^D]
50 */
51protected el_action_t
52/*ARGSUSED*/
53ed_end_of_file(EditLine *el, int c __unused)
54{
55
56 re_goto_bottom(el);
57 *el->el_line.lastchar = '\0';
58 return (CC_EOF);
59}
60
61
62/* ed_insert():
63 * Add character to the line
64 * Insert a character [bound to all insert keys]
65 */
66protected el_action_t
67ed_insert(EditLine *el, int c)
68{
69 int count = el->el_state.argument;
70
71 if (c == '\0')
72 return (CC_ERROR);
73
74 if (el->el_line.lastchar + el->el_state.argument >=
75 el->el_line.limit) {
76 /* end of buffer space, try to allocate more */
77 if (!ch_enlargebufs(el, (size_t) count))
78 return CC_ERROR; /* error allocating more */
79 }
80
81 if (count == 1) {
82 if (el->el_state.inputmode == MODE_INSERT
83 || el->el_line.cursor >= el->el_line.lastchar)
84 c_insert(el, 1);
85
86 *el->el_line.cursor++ = c;
87 re_fastaddc(el); /* fast refresh for one char. */
88 } else {
89 if (el->el_state.inputmode != MODE_REPLACE_1)
90 c_insert(el, el->el_state.argument);
91
92 while (count-- && el->el_line.cursor < el->el_line.lastchar)
93 *el->el_line.cursor++ = c;
94 re_refresh(el);
95 }
96
97 if (el->el_state.inputmode == MODE_REPLACE_1)
98 return vi_command_mode(el, 0);
99
100 return (CC_NORM);
101}
102
103
104/* ed_delete_prev_word():
105 * Delete from beginning of current word to cursor
106 * [M-^?] [^W]
107 */
108protected el_action_t
109/*ARGSUSED*/
110ed_delete_prev_word(EditLine *el, int c __unused)
111{
112 char *cp, *p, *kp;
113
114 if (el->el_line.cursor == el->el_line.buffer)
115 return (CC_ERROR);
116
117 cp = c__prev_word(el->el_line.cursor, el->el_line.buffer,
118 el->el_state.argument, ce__isword);
119
120 for (p = cp, kp = el->el_chared.c_kill.buf; p < el->el_line.cursor; p++)
121 *kp++ = *p;
122 el->el_chared.c_kill.last = kp;
123
124 c_delbefore(el, el->el_line.cursor - cp); /* delete before dot */
125 el->el_line.cursor = cp;
126 if (el->el_line.cursor < el->el_line.buffer)
127 el->el_line.cursor = el->el_line.buffer; /* bounds check */
128 return (CC_REFRESH);
129}
130
131
132/* ed_delete_next_char():
133 * Delete character under cursor
134 * [^D] [x]
135 */
136protected el_action_t
137/*ARGSUSED*/
|
138ed_delete_next_char(EditLine *el, int c __unused)
|
| 138ed_delete_next_char(EditLine *el, int c) |
139{
140#ifdef notdef /* XXX */
141#define EL el->el_line
142 (void) fprintf(el->el_errlfile,
143 "\nD(b: %x(%s) c: %x(%s) last: %x(%s) limit: %x(%s)\n",
144 EL.buffer, EL.buffer, EL.cursor, EL.cursor, EL.lastchar,
145 EL.lastchar, EL.limit, EL.limit);
146#endif
147 if (el->el_line.cursor == el->el_line.lastchar) {
148 /* if I'm at the end */
149 if (el->el_map.type == MAP_VI) {
150 if (el->el_line.cursor == el->el_line.buffer) {
151 /* if I'm also at the beginning */
152#ifdef KSHVI
153 return (CC_ERROR);
154#else
|
155 term_overwrite(el, STReof, 4);
156 /* then do an EOF */
157 term__flush();
|
155 /* then do an EOF */
156 term_writechar(el, c); |
157 return (CC_EOF);
158#endif
159 } else {
160#ifdef KSHVI
161 el->el_line.cursor--;
162#else
163 return (CC_ERROR);
164#endif
165 }
166 } else {
167 if (el->el_line.cursor != el->el_line.buffer)
168 el->el_line.cursor--;
169 else
170 return (CC_ERROR);
171 }
172 }
173 c_delafter(el, el->el_state.argument); /* delete after dot */
174 if (el->el_line.cursor >= el->el_line.lastchar &&
175 el->el_line.cursor > el->el_line.buffer)
176 /* bounds check */
177 el->el_line.cursor = el->el_line.lastchar - 1;
178 return (CC_REFRESH);
179}
180
181
182/* ed_kill_line():
183 * Cut to the end of line
184 * [^K] [^K]
185 */
186protected el_action_t
187/*ARGSUSED*/
188ed_kill_line(EditLine *el, int c __unused)
189{
190 char *kp, *cp;
191
192 cp = el->el_line.cursor;
193 kp = el->el_chared.c_kill.buf;
194 while (cp < el->el_line.lastchar)
195 *kp++ = *cp++; /* copy it */
196 el->el_chared.c_kill.last = kp;
197 /* zap! -- delete to end */
198 el->el_line.lastchar = el->el_line.cursor;
199 return (CC_REFRESH);
200}
201
202
203/* ed_move_to_end():
204 * Move cursor to the end of line
205 * [^E] [^E]
206 */
207protected el_action_t
208/*ARGSUSED*/
209ed_move_to_end(EditLine *el, int c __unused)
210{
211
212 el->el_line.cursor = el->el_line.lastchar;
213 if (el->el_map.type == MAP_VI) {
214#ifdef VI_MOVE
215 el->el_line.cursor--;
216#endif
217 if (el->el_chared.c_vcmd.action != NOP) {
218 cv_delfini(el);
219 return (CC_REFRESH);
220 }
221 }
222 return (CC_CURSOR);
223}
224
225
226/* ed_move_to_beg():
227 * Move cursor to the beginning of line
228 * [^A] [^A]
229 */
230protected el_action_t
231/*ARGSUSED*/
232ed_move_to_beg(EditLine *el, int c __unused)
233{
234
235 el->el_line.cursor = el->el_line.buffer;
236
237 if (el->el_map.type == MAP_VI) {
238 /* We want FIRST non space character */
239 while (isspace((unsigned char) *el->el_line.cursor))
240 el->el_line.cursor++;
241 if (el->el_chared.c_vcmd.action != NOP) {
242 cv_delfini(el);
243 return (CC_REFRESH);
244 }
245 }
246 return (CC_CURSOR);
247}
248
249
250/* ed_transpose_chars():
251 * Exchange the character to the left of the cursor with the one under it
252 * [^T] [^T]
253 */
254protected el_action_t
255ed_transpose_chars(EditLine *el, int c)
256{
257
258 if (el->el_line.cursor < el->el_line.lastchar) {
259 if (el->el_line.lastchar <= &el->el_line.buffer[1])
260 return (CC_ERROR);
261 else
262 el->el_line.cursor++;
263 }
264 if (el->el_line.cursor > &el->el_line.buffer[1]) {
265 /* must have at least two chars entered */
266 c = el->el_line.cursor[-2];
267 el->el_line.cursor[-2] = el->el_line.cursor[-1];
268 el->el_line.cursor[-1] = c;
269 return (CC_REFRESH);
270 } else
271 return (CC_ERROR);
272}
273
274
275/* ed_next_char():
276 * Move to the right one character
277 * [^F] [^F]
278 */
279protected el_action_t
280/*ARGSUSED*/
281ed_next_char(EditLine *el, int c __unused)
282{
283 char *lim = el->el_line.lastchar;
284
285 if (el->el_line.cursor >= lim ||
286 (el->el_line.cursor == lim - 1 &&
287 el->el_map.type == MAP_VI &&
288 el->el_chared.c_vcmd.action == NOP))
289 return (CC_ERROR);
290
291 el->el_line.cursor += el->el_state.argument;
292 if (el->el_line.cursor > lim)
293 el->el_line.cursor = lim;
294
295 if (el->el_map.type == MAP_VI)
296 if (el->el_chared.c_vcmd.action != NOP) {
297 cv_delfini(el);
298 return (CC_REFRESH);
299 }
300 return (CC_CURSOR);
301}
302
303
304/* ed_prev_word():
305 * Move to the beginning of the current word
306 * [M-b] [b]
307 */
308protected el_action_t
309/*ARGSUSED*/
310ed_prev_word(EditLine *el, int c __unused)
311{
312
313 if (el->el_line.cursor == el->el_line.buffer)
314 return (CC_ERROR);
315
316 el->el_line.cursor = c__prev_word(el->el_line.cursor,
317 el->el_line.buffer,
318 el->el_state.argument,
319 ce__isword);
320
321 if (el->el_map.type == MAP_VI)
322 if (el->el_chared.c_vcmd.action != NOP) {
323 cv_delfini(el);
324 return (CC_REFRESH);
325 }
326 return (CC_CURSOR);
327}
328
329
330/* ed_prev_char():
331 * Move to the left one character
332 * [^B] [^B]
333 */
334protected el_action_t
335/*ARGSUSED*/
336ed_prev_char(EditLine *el, int c __unused)
337{
338
339 if (el->el_line.cursor > el->el_line.buffer) {
340 el->el_line.cursor -= el->el_state.argument;
341 if (el->el_line.cursor < el->el_line.buffer)
342 el->el_line.cursor = el->el_line.buffer;
343
344 if (el->el_map.type == MAP_VI)
345 if (el->el_chared.c_vcmd.action != NOP) {
346 cv_delfini(el);
347 return (CC_REFRESH);
348 }
349 return (CC_CURSOR);
350 } else
351 return (CC_ERROR);
352}
353
354
355/* ed_quoted_insert():
356 * Add the next character typed verbatim
357 * [^V] [^V]
358 */
359protected el_action_t
360ed_quoted_insert(EditLine *el, int c)
361{
362 int num;
363 char tc;
364
365 tty_quotemode(el);
366 num = el_getc(el, &tc);
367 c = (unsigned char) tc;
368 tty_noquotemode(el);
369 if (num == 1)
370 return (ed_insert(el, c));
371 else
372 return (ed_end_of_file(el, 0));
373}
374
375
376/* ed_digit():
377 * Adds to argument or enters a digit
378 */
379protected el_action_t
380ed_digit(EditLine *el, int c)
381{
382
383 if (!isdigit((unsigned char) c))
384 return (CC_ERROR);
385
386 if (el->el_state.doingarg) {
387 /* if doing an arg, add this in... */
388 if (el->el_state.lastcmd == EM_UNIVERSAL_ARGUMENT)
389 el->el_state.argument = c - '0';
390 else {
391 if (el->el_state.argument > 1000000)
392 return (CC_ERROR);
393 el->el_state.argument =
394 (el->el_state.argument * 10) + (c - '0');
395 }
396 return (CC_ARGHACK);
397 }
398
399 return ed_insert(el, c);
400}
401
402
403/* ed_argument_digit():
404 * Digit that starts argument
405 * For ESC-n
406 */
407protected el_action_t
408ed_argument_digit(EditLine *el, int c)
409{
410
411 if (!isdigit((unsigned char) c))
412 return (CC_ERROR);
413
414 if (el->el_state.doingarg) {
415 if (el->el_state.argument > 1000000)
416 return (CC_ERROR);
417 el->el_state.argument = (el->el_state.argument * 10) +
418 (c - '0');
419 } else { /* else starting an argument */
420 el->el_state.argument = c - '0';
421 el->el_state.doingarg = 1;
422 }
423 return (CC_ARGHACK);
424}
425
426
427/* ed_unassigned():
428 * Indicates unbound character
429 * Bound to keys that are not assigned
430 */
431protected el_action_t
432/*ARGSUSED*/
433ed_unassigned(EditLine *el, int c __unused)
434{
435
436 return (CC_ERROR);
437}
438
439
440/**
441 ** TTY key handling.
442 **/
443
444/* ed_tty_sigint():
445 * Tty interrupt character
446 * [^C]
447 */
448protected el_action_t
449/*ARGSUSED*/
450ed_tty_sigint(EditLine *el __unused,
451 int c __unused)
452{
453
454 return (CC_NORM);
455}
456
457
458/* ed_tty_dsusp():
459 * Tty delayed suspend character
460 * [^Y]
461 */
462protected el_action_t
463/*ARGSUSED*/
464ed_tty_dsusp(EditLine *el __unused,
465 int c __unused)
466{
467
468 return (CC_NORM);
469}
470
471
472/* ed_tty_flush_output():
473 * Tty flush output characters
474 * [^O]
475 */
476protected el_action_t
477/*ARGSUSED*/
478ed_tty_flush_output(EditLine *el __unused,
479 int c __unused)
480{
481
482 return (CC_NORM);
483}
484
485
486/* ed_tty_sigquit():
487 * Tty quit character
488 * [^\]
489 */
490protected el_action_t
491/*ARGSUSED*/
492ed_tty_sigquit(EditLine *el __unused,
493 int c __unused)
494{
495
496 return (CC_NORM);
497}
498
499
500/* ed_tty_sigtstp():
501 * Tty suspend character
502 * [^Z]
503 */
504protected el_action_t
505/*ARGSUSED*/
506ed_tty_sigtstp(EditLine *el __unused,
507 int c __unused)
508{
509
510 return (CC_NORM);
511}
512
513
514/* ed_tty_stop_output():
515 * Tty disallow output characters
516 * [^S]
517 */
518protected el_action_t
519/*ARGSUSED*/
520ed_tty_stop_output(EditLine *el __unused,
521 int c __unused)
522{
523
524 return (CC_NORM);
525}
526
527
528/* ed_tty_start_output():
529 * Tty allow output characters
530 * [^Q]
531 */
532protected el_action_t
533/*ARGSUSED*/
534ed_tty_start_output(EditLine *el __unused,
535 int c __unused)
536{
537
538 return (CC_NORM);
539}
540
541
542/* ed_newline():
543 * Execute command
544 * [^J]
545 */
546protected el_action_t
547/*ARGSUSED*/
548ed_newline(EditLine *el, int c __unused)
549{
550
551 re_goto_bottom(el);
552 *el->el_line.lastchar++ = '\n';
553 *el->el_line.lastchar = '\0';
554 return (CC_NEWLINE);
555}
556
557
558/* ed_delete_prev_char():
559 * Delete the character to the left of the cursor
560 * [^?]
561 */
562protected el_action_t
563/*ARGSUSED*/
564ed_delete_prev_char(EditLine *el, int c __unused)
565{
566
567 if (el->el_line.cursor <= el->el_line.buffer)
568 return (CC_ERROR);
569
570 c_delbefore(el, el->el_state.argument);
571 el->el_line.cursor -= el->el_state.argument;
572 if (el->el_line.cursor < el->el_line.buffer)
573 el->el_line.cursor = el->el_line.buffer;
574 return (CC_REFRESH);
575}
576
577
578/* ed_clear_screen():
579 * Clear screen leaving current line at the top
580 * [^L]
581 */
582protected el_action_t
583/*ARGSUSED*/
584ed_clear_screen(EditLine *el, int c __unused)
585{
586
587 term_clear_screen(el); /* clear the whole real screen */
588 re_clear_display(el); /* reset everything */
589 return (CC_REFRESH);
590}
591
592
593/* ed_redisplay():
594 * Redisplay everything
595 * ^R
596 */
597protected el_action_t
598/*ARGSUSED*/
599ed_redisplay(EditLine *el __unused,
600 int c __unused)
601{
602
603 return (CC_REDISPLAY);
604}
605
606
607/* ed_start_over():
608 * Erase current line and start from scratch
609 * [^G]
610 */
611protected el_action_t
612/*ARGSUSED*/
613ed_start_over(EditLine *el, int c __unused)
614{
615
616 ch_reset(el, 0);
617 return (CC_REFRESH);
618}
619
620
621/* ed_sequence_lead_in():
622 * First character in a bound sequence
623 * Placeholder for external keys
624 */
625protected el_action_t
626/*ARGSUSED*/
627ed_sequence_lead_in(EditLine *el __unused,
628 int c __unused)
629{
630
631 return (CC_NORM);
632}
633
634
635/* ed_prev_history():
636 * Move to the previous history line
637 * [^P] [k]
638 */
639protected el_action_t
640/*ARGSUSED*/
641ed_prev_history(EditLine *el, int c __unused)
642{
643 char beep = 0;
644 int sv_event = el->el_history.eventno;
645
646 el->el_chared.c_undo.len = -1;
647 *el->el_line.lastchar = '\0'; /* just in case */
648
649 if (el->el_history.eventno == 0) { /* save the current buffer
650 * away */
651 (void) strncpy(el->el_history.buf, el->el_line.buffer,
652 EL_BUFSIZ);
653 el->el_history.last = el->el_history.buf +
654 (el->el_line.lastchar - el->el_line.buffer);
655 }
656 el->el_history.eventno += el->el_state.argument;
657
658 if (hist_get(el) == CC_ERROR) {
659 if (el->el_map.type == MAP_VI) {
660 el->el_history.eventno = sv_event;
661 return CC_ERROR;
662 }
663 beep = 1;
664 /* el->el_history.eventno was fixed by first call */
665 (void) hist_get(el);
666 }
667 if (beep)
668 return CC_REFRESH_BEEP;
669 return CC_REFRESH;
670}
671
672
673/* ed_next_history():
674 * Move to the next history line
675 * [^N] [j]
676 */
677protected el_action_t
678/*ARGSUSED*/
679ed_next_history(EditLine *el, int c __unused)
680{
681 el_action_t beep = CC_REFRESH, rval;
682
683 el->el_chared.c_undo.len = -1;
684 *el->el_line.lastchar = '\0'; /* just in case */
685
686 el->el_history.eventno -= el->el_state.argument;
687
688 if (el->el_history.eventno < 0) {
689 el->el_history.eventno = 0;
690 beep = CC_REFRESH_BEEP;
691 }
692 rval = hist_get(el);
693 if (rval == CC_REFRESH)
694 return beep;
695 return rval;
696
697}
698
699
700/* ed_search_prev_history():
701 * Search previous in history for a line matching the current
702 * next search history [M-P] [K]
703 */
704protected el_action_t
705/*ARGSUSED*/
706ed_search_prev_history(EditLine *el, int c __unused)
707{
708 const char *hp;
709 int h;
710 bool_t found = 0;
711
712 el->el_chared.c_vcmd.action = NOP;
713 el->el_chared.c_undo.len = -1;
714 *el->el_line.lastchar = '\0'; /* just in case */
715 if (el->el_history.eventno < 0) {
716#ifdef DEBUG_EDIT
717 (void) fprintf(el->el_errfile,
718 "e_prev_search_hist(): eventno < 0;\n");
719#endif
720 el->el_history.eventno = 0;
721 return (CC_ERROR);
722 }
723 if (el->el_history.eventno == 0) {
724 (void) strncpy(el->el_history.buf, el->el_line.buffer,
725 EL_BUFSIZ);
726 el->el_history.last = el->el_history.buf +
727 (el->el_line.lastchar - el->el_line.buffer);
728 }
729 if (el->el_history.ref == NULL)
730 return (CC_ERROR);
731
732 hp = HIST_FIRST(el);
733 if (hp == NULL)
734 return (CC_ERROR);
735
736 c_setpat(el); /* Set search pattern !! */
737
738 for (h = 1; h <= el->el_history.eventno; h++)
739 hp = HIST_NEXT(el);
740
741 while (hp != NULL) {
742#ifdef SDEBUG
743 (void) fprintf(el->el_errfile, "Comparing with \"%s\"\n", hp);
744#endif
745 if ((strncmp(hp, el->el_line.buffer, (size_t)
746 (el->el_line.lastchar - el->el_line.buffer)) ||
747 hp[el->el_line.lastchar - el->el_line.buffer]) &&
748 c_hmatch(el, hp)) {
749 found++;
750 break;
751 }
752 h++;
753 hp = HIST_NEXT(el);
754 }
755
756 if (!found) {
757#ifdef SDEBUG
758 (void) fprintf(el->el_errfile, "not found\n");
759#endif
760 return (CC_ERROR);
761 }
762 el->el_history.eventno = h;
763
764 return (hist_get(el));
765}
766
767
768/* ed_search_next_history():
769 * Search next in history for a line matching the current
770 * [M-N] [J]
771 */
772protected el_action_t
773/*ARGSUSED*/
774ed_search_next_history(EditLine *el, int c __unused)
775{
776 const char *hp;
777 int h;
778 bool_t found = 0;
779
780 el->el_chared.c_vcmd.action = NOP;
781 el->el_chared.c_undo.len = -1;
782 *el->el_line.lastchar = '\0'; /* just in case */
783
784 if (el->el_history.eventno == 0)
785 return (CC_ERROR);
786
787 if (el->el_history.ref == NULL)
788 return (CC_ERROR);
789
790 hp = HIST_FIRST(el);
791 if (hp == NULL)
792 return (CC_ERROR);
793
794 c_setpat(el); /* Set search pattern !! */
795
796 for (h = 1; h < el->el_history.eventno && hp; h++) {
797#ifdef SDEBUG
798 (void) fprintf(el->el_errfile, "Comparing with \"%s\"\n", hp);
799#endif
800 if ((strncmp(hp, el->el_line.buffer, (size_t)
801 (el->el_line.lastchar - el->el_line.buffer)) ||
802 hp[el->el_line.lastchar - el->el_line.buffer]) &&
803 c_hmatch(el, hp))
804 found = h;
805 hp = HIST_NEXT(el);
806 }
807
808 if (!found) { /* is it the current history number? */
809 if (!c_hmatch(el, el->el_history.buf)) {
810#ifdef SDEBUG
811 (void) fprintf(el->el_errfile, "not found\n");
812#endif
813 return (CC_ERROR);
814 }
815 }
816 el->el_history.eventno = found;
817
818 return (hist_get(el));
819}
820
821
822/* ed_prev_line():
823 * Move up one line
824 * Could be [k] [^p]
825 */
826protected el_action_t
827/*ARGSUSED*/
828ed_prev_line(EditLine *el, int c __unused)
829{
830 char *ptr;
831 int nchars = c_hpos(el);
832
833 /*
834 * Move to the line requested
835 */
836 if (*(ptr = el->el_line.cursor) == '\n')
837 ptr--;
838
839 for (; ptr >= el->el_line.buffer; ptr--)
840 if (*ptr == '\n' && --el->el_state.argument <= 0)
841 break;
842
843 if (el->el_state.argument > 0)
844 return (CC_ERROR);
845
846 /*
847 * Move to the beginning of the line
848 */
849 for (ptr--; ptr >= el->el_line.buffer && *ptr != '\n'; ptr--)
850 continue;
851
852 /*
853 * Move to the character requested
854 */
855 for (ptr++;
856 nchars-- > 0 && ptr < el->el_line.lastchar && *ptr != '\n';
857 ptr++)
858 continue;
859
860 el->el_line.cursor = ptr;
861 return (CC_CURSOR);
862}
863
864
865/* ed_next_line():
866 * Move down one line
867 * Could be [j] [^n]
868 */
869protected el_action_t
870/*ARGSUSED*/
871ed_next_line(EditLine *el, int c __unused)
872{
873 char *ptr;
874 int nchars = c_hpos(el);
875
876 /*
877 * Move to the line requested
878 */
879 for (ptr = el->el_line.cursor; ptr < el->el_line.lastchar; ptr++)
880 if (*ptr == '\n' && --el->el_state.argument <= 0)
881 break;
882
883 if (el->el_state.argument > 0)
884 return (CC_ERROR);
885
886 /*
887 * Move to the character requested
888 */
889 for (ptr++;
890 nchars-- > 0 && ptr < el->el_line.lastchar && *ptr != '\n';
891 ptr++)
892 continue;
893
894 el->el_line.cursor = ptr;
895 return (CC_CURSOR);
896}
897
898
899/* ed_command():
900 * Editline extended command
901 * [M-X] [:]
902 */
903protected el_action_t
904/*ARGSUSED*/
905ed_command(EditLine *el, int c __unused)
906{
907 char tmpbuf[EL_BUFSIZ];
908 int tmplen;
909
910 tmplen = c_gets(el, tmpbuf, "\n: ");
911 term__putc('\n');
912
913 if (tmplen < 0 || (tmpbuf[tmplen] = 0, parse_line(el, tmpbuf)) == -1)
914 term_beep(el);
915
916 el->el_map.current = el->el_map.key;
917 re_clear_display(el);
918 return CC_REFRESH;
919}
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