switch (*p) {
	case 'c': keys = keys_c; break;
	case 'd': case 'f': keys = keys_df; break;
	case 'g': keys = keys_g; break;
	case 'i': case 'l': keys = keys_il; break;
	case 'm': keys = keys_m; break;
	case 'n': case 'o': keys = keys_no; break;
	case 'r': keys = keys_r; break;
	case 's': keys = keys_s; break;
	case 't': keys = keys_t; break;
	case 'u': keys = keys_u; break;
	default: return (0);/* Unknown key */
	}

    unsafe {
        match *p as i32 {
            99 => {
                keys = keys_c.as_ptr()
                /* Unknown key */
            }
            100 | 102 => keys = keys_df.as_ptr(),
            103 => keys = keys_g.as_ptr(),
            105 | 108 => keys = keys_il.as_ptr(),
            109 => keys = keys_m.as_ptr(),
            110 | 111 => keys = keys_no.as_ptr(),
            114 => keys = keys_r.as_ptr(),
            115 => keys = keys_s.as_ptr(),
            116 => keys = keys_t.as_ptr(),
            117 => keys = keys_u.as_ptr(),
            _ => return 0,
        }
    }