Please help me to code following strategy

BUY

1.TODAY OPEN = TODAY LOW

2.CURRENT PRICE IS GREATER THAN YESTERDAY’S HIGH

SELL

1.TODAY HIGH =TODAY LOW

2.CURENT PRICE IS LESS THAN YESTERDAY’S LOW

As per the above condition use day candles

Buy Script:

LAST > REF(HIGH,1) AND OPEN = LOW

Sell Script:

LAST < REF(LOW,1) AND OPEN = HIGH

Thanks !! AlgoGeek