Iavor's pretty-show package is quite handy for these kind of tasks as well. Highly recommended: http://hackage.haskell.org/package/pretty-show Since Iavor package is not tree-centric, it'll probably not generate as nice output as you can for real tree-like-data. However, since it works on arbitrary Show instances, it's much more readily usable: It's (almost) a drop-in replacement for show. I find it to be extremely valuable in debugging tasks. -Levent. On Fri, Oct 26, 2012 at 5:58 AM, Ivan Lazar Miljenovic < ivan.miljenovic@gmail.com> wrote:
For a project I'm working on, I got sick of writing out trees by hand. Data.Tree has a drawTree function, but whilst it's better than nothing, I prefer a more top-down "traditional" approach to drawing trees.
So I wrote a package to do just that: http://hackage.haskell.org/package/pretty-tree
(I didn't think to check whether diagrams had capabilities to do so until after I finished, though in this case I prefer a textual approach anyway.)
I'm more than happy to consider adding other forms of drawing trees (though off-hand I can't think of any), or of course you can send me patches since I'm taking advantage of the nice new shiny hub.darcs.net (thanks Darcs team!).
I was going to put an example here but it only really comes out nicely if you're using a monospaced font, so have a look at the Haddock docs for the module once Hackage builds it (in hindsight, I should probably have come up with better labels before releasing the package... oh well :)
-- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com http://IvanMiljenovic.wordpress.com
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