[Haskell-cafe] Prettier pretty-printing of data types?
mad.one at gmail.com
Tue Mar 13 23:37:24 CET 2012
It's not exactly hierarchical, but Groom most certainly should help
with getting much prettier output:
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?
> data Tree a = Leaf | Bin Int a (Tree a) (Tree a)
> value = Bin 1 (Bin 2 Leaf Leaf) (Bin 3 Leaf Leaf)
> draw as
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