math - determining numerator and denominator in a relatively complex mathematical expression using python -

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i'm trying convert calculator input latex. if user inputs this:

(3x^(x+(5/x)+(x/33))+y)/(32 + 5)

i have convert this:

frac{3x^(x+frac{5}{x}+frac{x}{33})+y}{32 + 5x}

however having issues determining when numerator begins , ends. suggestions?

a package exists kind of transformation : py2tex

if want reuse package, can use py2tex.interpret class so.


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