state = 0;
        for ( i = j = 0; i < len; i++ ) {
            switch ( state ) {
            case 0:
                ch = str.charAt(i);
                if ( ch == '%' ) {
                    state = 1;
                }
                else {
                    out[ j++ ] = ch;
                }
                break;
            case 1:
                /*