[Haskell-beginners] Using derived Show most of the time

[Russ Abbott]

I have a data type for which I want to generate my own show string in a few
cases, e.g.,

*data *T =    T1 ...
             | T2 ...
             | T3 ...
             ...


I'd like to do something like this,

*instance *Show T *where*
     show T5 ... = <something special>
     show t = showTheDerived t


Is there a way to do something like that simply?

*
-- Russ *
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