Function vi_change_case

extern/editline/src/vi.c:247–271

vi_change_case(): * Vi change case of character under the cursor and advance one character * [~] */

 *	[~]
 */
protected el_action_t
vi_change_case(EditLine *el, Int c)
{
	int i;

	if (el->el_line.cursor >= el->el_line.lastchar)
		return CC_ERROR;
	cv_undo(el);
	for (i = 0; i < el->el_state.argument; i++) {

		c = *el->el_line.cursor;
		if (Isupper(c))
			*el->el_line.cursor = Tolower(c);
		else if (Islower(c))
			*el->el_line.cursor = Toupper(c);

		if (++el->el_line.cursor >= el->el_line.lastchar) {
			el->el_line.cursor--;
			re_fastaddc(el);
			break;
		}
		re_fastaddc(el);
	}
	return CC_NORM;
}


/* vi_change_meta():