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 < [email protected]> 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 > [email protected] > http://IvanMiljenovic.wordpress.com > > _______________________________________________ > Haskell-Cafe mailing list > [email protected] > http://www.haskell.org/mailman/listinfo/haskell-cafe >
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