[Haskell-cafe] combined parsing & pretty-printing

[Ozgur Akgun]

Dear Café,

I working on a DSL represented by a algebraic data type with many
constructors. I can write (separately) a parser and a pretty-printer for it,
and I am doing so at the moment. However, this way it feels like repeating
the same information twice.

Is there any work to combine the two?

Best,
Ozgur
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