pass formula from excel to autoit

[golfinhu]

 

Hi, people, how are you?
I'm trying to create an algorithm that passes conditional formulas from excel to Autoit, I was thinking of doing something recursive, but I'm not getting it.

 

#include <Array.au3>

$sString = '=IF(D15="NO",(-K6+(K6*K6-4*K5*K7)^(1/2))/(2*K5),IF(G9="BIG",G14,(-K6+(K6*K6-4*K5*K7)^(1/2))/(2*K5)))'


MsgBox(0,'', _a($sString))

Func _a($sString)
    MsgBox(0, '', $sString)
    Local $sCondition = StringRegExp($sString, "IF\((.+?);", 3)[0]
    Local $aRight = StringRegExp($sString, "IF\(.+?;(.+)\)", 3)

    If StringLeft($aRight[0], 2) <> "IF" Then
        Return 0
    Else
        Return _a($aRight[0])
    EndIf

EndFunc

I wanted something like this:

if $D15 = "NO" then
    (-$K6+($K6*$K6-4*$K5*$K7)^(1/2))/(2*$K5);
elseif $G9 = 'BIG' then
    $G14
else
    (-$K6+($K6*$K6-4*$K5*$K7^(1/2/(2*$K5))));
Endif

 

Remembering that you can have IF inside IF.

 

Is there any simple way to do this?

Thank you very much