DFA built after reversed expression?

[flores-o]

Hi Amin,

Thanks for the project you shared.

Is it possible that the DFA is built after the reversed expression and not the one that is given in the input?
I tried to follow the code and see why, but I couldn't.

Could you help?
Thank you,
Oana

I read the chapter on 'Compilers: Principles, Techniques and Tools by Aho, Ullman, Sethi and Lam'. I have an understanding of what the algorithm should do, but not so deep