47 #include "el.h"
58 cv_undo(EditLine *el)
60 	c_undo_t *vu = &el->el_chared.c_undo;
61 	c_redo_t *r = &el->el_chared.c_redo;
65 	size = el->el_line.lastchar - el->el_line.buffer;
67 	vu->cursor = (int)(el->el_line.cursor - el->el_line.buffer);
68 	memcpy(vu->buf, el->el_line.buffer, size);
71 	r->count = el->el_state.doingarg ? el->el_state.argument : 0;
72 	r->action = el->el_chared.c_vcmd.action;
74 	r->cmd = el->el_state.thiscmd;
75 	r->ch = el->el_state.thisch;
82 cv_yank(EditLine *el, const char *ptr, int size)
84 	c_kill_t *k = &el->el_chared.c_kill;
95 c_insert(EditLine *el, int num)
99 	if (el->el_line.lastchar + num >= el->el_line.limit) {
100 		if (!ch_enlargebufs(el, (size_t)num))
104 	if (el->el_line.cursor < el->el_line.lastchar) {
106 		for (cp = el->el_line.lastchar; cp >= el->el_line.cursor; cp--)
109 	el->el_line.lastchar += num;
117 c_delafter(EditLine *el, int num)
120 	if (el->el_line.cursor + num > el->el_line.lastchar)
121 		num = (int)(el->el_line.lastchar - el->el_line.cursor);
123 	if (el->el_map.current != el->el_map.emacs) {
124 		cv_undo(el);
125 		cv_yank(el, el->el_line.cursor, num);
131 		for (cp = el->el_line.cursor; cp <= el->el_line.lastchar; cp++)
134 		el->el_line.lastchar -= num;
143 c_delafter1(EditLine *el)
147 	for (cp = el->el_line.cursor; cp <= el->el_line.lastchar; cp++)
150 	el->el_line.lastchar--;
158 c_delbefore(EditLine *el, int num)
161 	if (el->el_line.cursor - num < el->el_line.buffer)
162 		num = (int)(el->el_line.cursor - el->el_line.buffer);
164 	if (el->el_map.current != el->el_map.emacs) {
165 		cv_undo(el);
166 		cv_yank(el, el->el_line.cursor - num, num);
172 		for (cp = el->el_line.cursor - num;
173 		    cp <= el->el_line.lastchar;
177 		el->el_line.lastchar -= num;
186 c_delbefore1(EditLine *el)
190 	for (cp = el->el_line.cursor - 1; cp <= el->el_line.lastchar; cp++)
193 	el->el_line.lastchar--;
277 cv_next_word(EditLine *el, char *p, char *high, int n, int (*wtest)(int))
289 		if (n || el->el_chared.c_vcmd.action != (DELETE|INSERT))
366 cv_delfini(EditLine *el)
369 	int action = el->el_chared.c_vcmd.action;
372 		el->el_map.current = el->el_map.key;
374 	if (el->el_chared.c_vcmd.pos == 0)
378 	size = (int)(el->el_line.cursor - el->el_chared.c_vcmd.pos);
381 	el->el_line.cursor = el->el_chared.c_vcmd.pos;
384 			cv_yank(el, el->el_line.cursor, size);
386 			cv_yank(el, el->el_line.cursor + size, -size);
389 			c_delafter(el, size);
390 			re_refresh_cursor(el);
392 			c_delbefore(el, -size);
393 			el->el_line.cursor += size;
396 	el->el_chared.c_vcmd.action = NOP;
448 ch_init(EditLine *el)
450 	c_macro_t *ma = &el->el_chared.c_macro;
452 	el->el_line.buffer		= (char *) el_malloc(EL_BUFSIZ);
453 	if (el->el_line.buffer == NULL)
456 	(void) memset(el->el_line.buffer, 0, EL_BUFSIZ);
457 	el->el_line.cursor		= el->el_line.buffer;
458 	el->el_line.lastchar		= el->el_line.buffer;
459 	el->el_line.limit		= &el->el_line.buffer[EL_BUFSIZ - EL_LEAVE];
461 	el->el_chared.c_undo.buf	= (char *) el_malloc(EL_BUFSIZ);
462 	if (el->el_chared.c_undo.buf == NULL)
464 	(void) memset(el->el_chared.c_undo.buf, 0, EL_BUFSIZ);
465 	el->el_chared.c_undo.len	= -1;
466 	el->el_chared.c_undo.cursor	= 0;
467 	el->el_chared.c_redo.buf	= (char *) el_malloc(EL_BUFSIZ);
468 	if (el->el_chared.c_redo.buf == NULL)
470 	el->el_chared.c_redo.pos	= el->el_chared.c_redo.buf;
471 	el->el_chared.c_redo.lim	= el->el_chared.c_redo.buf + EL_BUFSIZ;
472 	el->el_chared.c_redo.cmd	= ED_UNASSIGNED;
474 	el->el_chared.c_vcmd.action	= NOP;
475 	el->el_chared.c_vcmd.pos	= el->el_line.buffer;
477 	el->el_chared.c_kill.buf	= (char *) el_malloc(EL_BUFSIZ);
478 	if (el->el_chared.c_kill.buf == NULL)
480 	(void) memset(el->el_chared.c_kill.buf, 0, EL_BUFSIZ);
481 	el->el_chared.c_kill.mark	= el->el_line.buffer;
482 	el->el_chared.c_kill.last	= el->el_chared.c_kill.buf;
484 	el->el_map.current		= el->el_map.key;
486 	el->el_state.inputmode		= MODE_INSERT; /* XXX: save a default */
487 	el->el_state.doingarg		= 0;
488 	el->el_state.metanext		= 0;
489 	el->el_state.argument		= 1;
490 	el->el_state.lastcmd		= ED_UNASSIGNED;
504 ch_reset(EditLine *el, int mclear)
506 	el->el_line.cursor		= el->el_line.buffer;
507 	el->el_line.lastchar		= el->el_line.buffer;
509 	el->el_chared.c_undo.len	= -1;
510 	el->el_chared.c_undo.cursor	= 0;
512 	el->el_chared.c_vcmd.action	= NOP;
513 	el->el_chared.c_vcmd.pos	= el->el_line.buffer;
515 	el->el_chared.c_kill.mark	= el->el_line.buffer;
517 	el->el_map.current		= el->el_map.key;
519 	el->el_state.inputmode		= MODE_INSERT; /* XXX: save a default */
520 	el->el_state.doingarg		= 0;
521 	el->el_state.metanext		= 0;
522 	el->el_state.argument		= 1;
523 	el->el_state.lastcmd		= ED_UNASSIGNED;
525 	el->el_history.eventno		= 0;
528 		ch__clearmacro(el);
532 ch__clearmacro(EditLine *el)
534 	c_macro_t *ma = &el->el_chared.c_macro;
544 ch_enlargebufs(EditLine *el, size_t addlen)
549 	sz = el->el_line.limit - el->el_line.buffer + EL_LEAVE;
563 	newbuffer = el_realloc(el->el_line.buffer, newsz);
570 	oldbuf = el->el_line.buffer;
572 	el->el_line.buffer = newbuffer;
573 	el->el_line.cursor = newbuffer + (el->el_line.cursor - oldbuf);
574 	el->el_line.lastchar = newbuffer + (el->el_line.lastchar - oldbuf);
576 	el->el_line.limit  = &newbuffer[sz - EL_LEAVE];
581 	newbuffer = el_realloc(el->el_chared.c_kill.buf, newsz);
588 	oldkbuf = el->el_chared.c_kill.buf;
590 	el->el_chared.c_kill.buf = newbuffer;
591 	el->el_chared.c_kill.last = newbuffer +
592 					(el->el_chared.c_kill.last - oldkbuf);
593 	el->el_chared.c_kill.mark = el->el_line.buffer +
594 					(el->el_chared.c_kill.mark - oldbuf);
599 	newbuffer = el_realloc(el->el_chared.c_undo.buf, newsz);
605 	el->el_chared.c_undo.buf = newbuffer;
607 	newbuffer = el_realloc(el->el_chared.c_redo.buf, newsz);
610 	el->el_chared.c_redo.pos = newbuffer +
611 			(el->el_chared.c_redo.pos - el->el_chared.c_redo.buf);
612 	el->el_chared.c_redo.lim = newbuffer +
613 			(el->el_chared.c_redo.lim - el->el_chared.c_redo.buf);
614 	el->el_chared.c_redo.buf = newbuffer;
616 	if (!hist_enlargebuf(el, sz, newsz))
620 	el->el_line.limit  = &el->el_line.buffer[newsz - EL_LEAVE];
628 ch_end(EditLine *el)
630 	el_free((ptr_t) el->el_line.buffer);
631 	el->el_line.buffer = NULL;
632 	el->el_line.limit = NULL;
633 	el_free((ptr_t) el->el_chared.c_undo.buf);
634 	el->el_chared.c_undo.buf = NULL;
635 	el_free((ptr_t) el->el_chared.c_redo.buf);
636 	el->el_chared.c_redo.buf = NULL;
637 	el->el_chared.c_redo.pos = NULL;
638 	el->el_chared.c_redo.lim = NULL;
639 	el->el_chared.c_redo.cmd = ED_UNASSIGNED;
640 	el_free((ptr_t) el->el_chared.c_kill.buf);
641 	el->el_chared.c_kill.buf = NULL;
642 	ch_reset(el, 1);
643 	el_free((ptr_t) el->el_chared.c_macro.macro);
644 	el->el_chared.c_macro.macro = NULL;
652 el_insertstr(EditLine *el, const char *s)
658 	if (el->el_line.lastchar + len >= el->el_line.limit) {
659 		if (!ch_enlargebufs(el, len))
663 	c_insert(el, (int)len);
665 		*el->el_line.cursor++ = *s++;
674 el_deletestr(EditLine *el, int n)
679 	if (el->el_line.cursor < &el->el_line.buffer[n])
682 	c_delbefore(el, n);		/* delete before dot */
683 	el->el_line.cursor -= n;
684 	if (el->el_line.cursor < el->el_line.buffer)
685 		el->el_line.cursor = el->el_line.buffer;
692 c_gets(EditLine *el, char *buf, const char *prompt)
696 	char *cp = el->el_line.buffer;
706 		el->el_line.cursor = cp;
708 		el->el_line.lastchar = cp + 1;
709 		re_refresh(el);
711 		if (el_getc(el, &ch) != 1) {
712 			ed_end_of_file(el, 0);
736 				term_beep(el);
746 	el->el_line.buffer[0] = '\0';
747 	el->el_line.lastchar = el->el_line.buffer;
748 	el->el_line.cursor = el->el_line.buffer;
757 c_hpos(EditLine *el)
764 	if (el->el_line.cursor == el->el_line.buffer)
767 		for (ptr = el->el_line.cursor - 1;
768 		     ptr >= el->el_line.buffer && *ptr != '\n';
771 		return (int)(el->el_line.cursor - ptr - 1);

Indexes created Sun Jun 23 19:15:37 MDT 2024