[Haskell-cafe] Re: derive Pretty?
Christian.Maeder at dfki.de
Fri Feb 1 05:32:35 EST 2008
Greg Fitzgerald wrote:
> Is it possible to automatically derive instances of Pretty
> If no, what do most do when it comes to pretty-printing large data types?
We do it manually. Usually you have to decide anyway which bits to omit
or add (only implicitly indicated by a data constructor) and if you
compose things vertically or beside (or nested or whatever) to make it
see i.e an abstract syntax at:
the pretty printer code is here
our pretty printer wrapper (for text and latex tailored for Hets)
(try "versions" instead of "daily", if a "daily" went wrong)
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