So I'm trying to understand thos lines and coming from C# and Python I'm having a hard time to understand this syntax :
rv = b < c*a
sl = rv == 1 and high > y and close < y and open < y
ss = rv == 1 and low < x and close > x and open > x
li = sl ? y : ss ? x : (x+y)/2
rv = b < c*a - result is a bool variable rv which value (true or false) depends of the expression b < c*a.
sl = rv == 1 and high > y and close < y and open < y result is a bool variable, expression can be simplified as
sl = b1 and b2 and b3 and b4 where:
b1 = rv == 1 (true or false)
b2 = high > y (true or false)
b3 = close < y (true or false)
b4 = open < y (true or false)
same
is a ternary operator https://www.tradingview.com/pine-script-docs/en/v5/language/Operators.html#ternary-operator