Metastock bollinger bands formula

cond1:=C>BBandTop(C,20,S,2);
cond2:=H<=Ref(H,-1) AND Ref(H,-1)>=Ref(H,-2);
cond3:=RSI(14)>65;
cond4:=Ref(cond1,-1) AND cond2 AND Ref(cond3,-1);
cond5:=C<BBandTop(C,20,S,1.25);

ExitTrigger:=
Abs(13-BarsSince(cond4))<=7

AND

Ref(C>BBandTop(C,20,S,1.25),-1)

AND

Ref(C<BBandTop(C,20,S,2),-1)

AND

cond2

AND

Ref(RSI(14),-1)<ValueWhen(1,cond4,Ref(RSI(14),-1))

AND

BarsSince(cond5)<BarsSince(cond4)

AND

BarsSince(cond1)>BarsSince(cond5);

cond1:=C>BBandTop(C,20,S,2);
{the CLOSE price of the current bar must be higher than the top BB}
{notice the value of the SD argument}

cond2:=H<=Ref(H,-1) AND Ref(H,-1)>=Ref(H,-2);
{the HIGH of the current bar must be ltoe the HIGH of the previous bar, and
the HIGH of the previous bar must be gtoe the HIGH of the bar previous}

cond3:=RSI(14)>65;
{the RSI must be gt 65}

cond4:=Ref(cond1,-1) AND cond2 AND Ref(cond3,-1);
{the value of (cond1) on the previous bar must be TRUE, and
the value of (cond2) on the current bar must be TRUE, and
the value of (cond3) on the previous bar must be TRUE}

cond5:=C<BBandTop(C,20,S,1.25);
{the CLOSE of the current bar must be lt the top BB}
{notice the value of the SD argument}

ExitTrigger:=
Abs(13-BarsSince(cond4))<=7
{the value of (cond4) must have been true at any time between
6 to 20 bars ago (inclusive)}

AND

Ref(C>BBandTop(C,20,S,1.25),-1)
{on the previous bar, the CLOSE must be gt the top BB}
{notice the value of the SD argument}

AND

Ref(C<BBandTop(C,20,S,2),-1)
{on the previous bar, the CLOSE must be lt the top BB}
{notice the value of the SD argument}

AND

cond2
{must be true}

AND

Ref(RSI(14),-1)<ValueWhen(1,cond4,Ref(RSI(14),-1))
{the value of the RSI on the previous bar must be lt the
value of the RSI on the previous bar on the last occasion
when (cond4) was TRUE}

AND

BarsSince(cond5)<BarsSince(cond4)
{the period elapsed since (cond5) was last TRUE is lt
than the period elapsed since (cond4) was TRUE}

AND

BarsSince(cond1)>BarsSince(cond5);
{the periods elapsed since (cond1) was last TRUE is gt
the period elapsed since (cond5) was TRUE}