Logic equivalent in electronic

HI,

I am trying to find if there is an equivalent in electronic (most
probably digital) for some common programming language.
What would be the equivalent of 'if - then' , 'else' etc...
I am builing a digial circuits with inverters , Nand gates etc.. but
would like to implement more complex decision.
I did not find anything on google, does anybody know about these
pre-made circuitry?

thank you

ken

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