Keep your code readable with smart indenting : Latex

Is there a way to automatically indent a math environment ? By that, I mean a clean set of equations for the writer and this has absolutely no influence on the output pdf. It is just to make readable the text file. In Matlab, ctr+i is doing this smart indenting. I am wondering if there is an equivalent to that in Latex.

Update:
By smart indenting, I mean if for instance you have

begin{equation}
centering
begin{aligned}
    begin{dcases}
       textsf{}  
       textsf{} 
    end{dcases}
    &{hspace{}  textsf{}}
        end{aligned}
    {hspace{}  text{} hspace{}}
    begin{aligned}
        begin{dcases}
       textsf{}  
        textsf{} 
    end{dcases}
&{hspace{}  textsf{}
        end{aligned}

end{equation} 

the set of lines are correctly tabbed with respect to each other. I don’t want to indent them all. I want the indent be such that as the code is clean and you can see the nested part of it.

begin{equation}
        centering
        begin{aligned}
                begin{dcases}
                        textsf{} 
                        textsf{} 
                end{dcases} 
                 & {hspace{}  textsf{}}
        end{aligned}
        {hspace{}  text{} hspace{}}
        begin{aligned}
                begin{dcases}
                        textsf{} 
                        textsf{} 
                end{dcases} 
                 & {hspace{}  textsf{}
        end{aligned}

end{equation}