lib/libedit/chared.c

54 /* value to leave unused in line buffer */
68 	size = (size_t)(el->el_line.lastchar - el->el_line.buffer);
70 	vu->cursor = (int)(el->el_line.cursor - el->el_line.buffer);
71 	(void)memcpy(vu->buf, el->el_line.buffer, size * sizeof(*vu->buf));
104 			return;		/* can't go past end of buffer */
164 	if (el->el_line.cursor - num < el->el_line.buffer)
165 		num = (int)(el->el_line.cursor - el->el_line.buffer);
399 	el->el_line.buffer		= el_malloc(EL_BUFSIZ *
400 	    sizeof(*el->el_line.buffer));
401 	if (el->el_line.buffer == NULL)
404 	(void) memset(el->el_line.buffer, 0, EL_BUFSIZ *
405 	    sizeof(*el->el_line.buffer));
406 	el->el_line.cursor		= el->el_line.buffer;
407 	el->el_line.lastchar		= el->el_line.buffer;
408 	el->el_line.limit		= &el->el_line.buffer[EL_BUFSIZ - EL_LEAVE];
427 	el->el_chared.c_vcmd.pos	= el->el_line.buffer;
435 	el->el_chared.c_kill.mark	= el->el_line.buffer;
464 	el->el_line.cursor		= el->el_line.buffer;
465 	el->el_line.lastchar		= el->el_line.buffer;
471 	el->el_chared.c_vcmd.pos	= el->el_line.buffer;
473 	el->el_chared.c_kill.mark	= el->el_line.buffer;
498  *	Enlarge line buffer to be able to hold twice as much characters.
507 	sz = (size_t)(el->el_line.limit - el->el_line.buffer + EL_LEAVE);
510 	 * If newly required length is longer than current buffer, we need
511 	 * to make the buffer big enough to hold both old and new stuff.
519 	 * Reallocate line buffer.
521 	newbuffer = el_realloc(el->el_line.buffer, newsz * sizeof(*newbuffer));
528 	oldbuf = el->el_line.buffer;
530 	el->el_line.buffer = newbuffer;
537 	 * Reallocate kill buffer.
552 	el->el_chared.c_kill.mark = el->el_line.buffer +
556 	 * Reallocate undo buffer.
580 	/* Safe to set enlarged buffer size */
581 	el->el_line.limit  = &el->el_line.buffer[newsz - EL_LEAVE];
593 	el_free(el->el_line.buffer);
594 	el->el_line.buffer = NULL;
642 	if (el->el_line.cursor < &el->el_line.buffer[n])
647 	if (el->el_line.cursor < el->el_line.buffer)
648 		el->el_line.cursor = el->el_line.buffer;
662 	if (el->el_line.cursor < el->el_line.buffer)
663 		el->el_line.cursor = el->el_line.buffer;
667 	return (int)(el->el_line.cursor - el->el_line.buffer);
678 	Char *cp = el->el_line.buffer;
728 	el->el_line.buffer[0] = '\0';
729 	el->el_line.lastchar = el->el_line.buffer;
730 	el->el_line.cursor = el->el_line.buffer;
746 	if (el->el_line.cursor == el->el_line.buffer)
750 		     ptr >= el->el_line.buffer && *ptr != '\n';