how to convert this metastock code to mt4 ea

[eatrade]

Hello

I saw a system coded at metastock lang at forex-tsd.com. This system looks candle pattrern . Its a kind of fractal system. How can convert this code to mt4 ea.

Thanks.

code:

Up Level and Down Level Fractals}

F1:=ValueWhen(1,H<Ref(H,-2) AND Ref(H,-1)<Ref(H,-2) AND Ref(H,-3)<Ref(H,-2) AND Ref(H,-4)<Ref(H,-2),Ref(H,-2));

F2:=ValueWhen(1,L>Ref(L,-2) AND Ref(L,-1)>Ref(L,-2) AND Ref(L,-3)>Ref(L,-2) AND Ref(L,-4)>Ref(L,-2),Ref(L,-2));

{Cross Up and Down Level Fractal}

a:= Cross(H,F1);
b:= Cross(F2,L);

state:= BarsSince(a)<BarsSince(b);

{Signal Long and Short}

ShortSignal:= state < Ref(state,-1);
LongSignal:= state > Ref(state,-1);

{Trend Up and Down}

UpTrend:= state>0;
DownTrend:= state<1;

{OpenBuy and CloseBuy}

OpenBuy:= LongSignal and (eventCount('OpenBuy')=eventCount('CloseBuy'));
CloseBuy:= ShortSignal and (eventCount('OpenBuy')>eventCount('CloseBuy'));

{OpenSell and CloseSell}

OpenSell:= ShortSignal and (eventCount('OpenSell')=eventCount('CloseSell'));
CloseSell:= LongSignal and (eventCount('OpenSell')>eventCount('CloseSell'));