Function cv_csearch

extern/editline/src/search.c:596–642

cv_csearch(): * Vi character search */

 *	Vi character search
 */
protected el_action_t
cv_csearch(EditLine *el, int direction, Int ch, int count, int tflag)
{
	Char *cp;

	if (ch == 0)
		return CC_ERROR;

	if (ch == (Int)-1) {
		Char c;
		if (FUN(el,getc)(el, &c) != 1)
			return ed_end_of_file(el, 0);
		ch = c;
	}

	/* Save for ';' and ',' commands */
	el->el_search.chacha = ch;
	el->el_search.chadir = direction;
	el->el_search.chatflg = (char)tflag;

	cp = el->el_line.cursor;
	while (count--) {
		if ((Int)*cp == ch)
			cp += direction;
		for (;;cp += direction) {
			if (cp >= el->el_line.lastchar)
				return CC_ERROR;
			if (cp < el->el_line.buffer)
				return CC_ERROR;
			if ((Int)*cp == ch)
				break;
		}
	}

	if (tflag)
		cp -= direction;

	el->el_line.cursor = cp;

	if (el->el_chared.c_vcmd.action != NOP) {
		if (direction > 0)
			el->el_line.cursor++;
		cv_delfini(el);
		return CC_REFRESH;
	}
	return CC_CURSOR;
}