[Haskell-cafe] Prettier pretty-printing of data types?

[Austin Seipp]

It's not exactly hierarchical, but Groom most certainly should help
with getting much prettier output:

http://hackage.haskell.org/package/groom

On Tue, Mar 13, 2012 at 5:33 PM, Johan Tibell <johan.tibell at gmail.com> wrote:
> Hi all,
>
> The derived Show instance is useful, but I sometimes wish for
> something that's easier to read for big data types. Does anyone have
> an implementation of show that draws things in a hierarchical manner?
> Example:
>
> Given
>
>    data Tree a = Leaf | Bin Int a (Tree a) (Tree a)
>
> and
>
>    value = Bin 1 (Bin 2 Leaf Leaf) (Bin 3 Leaf Leaf)
>
> draw as
>
> Bin
>  1
>  Bin
>    2
>    Leaf
>    Leaf
>  Bin
>    3
>    Leaf
>    Leaf
>
> Cheers,
> Johan
>
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-- 
Regards,
Austin