Data.Generics.Fixplate.Draw

Generic ascii art / graphviz drawing of trees.

Suggestions for drawing styles are welcome.

TODO:

• make the style customizable
• the same for graphviz

Default tree drawing, using Show instancess

drawTree :: (Functor f, Foldable f, ShowF f) => Mu f -> IO ()

Prints a tree. It is defined simply as

 drawTree = putStrLn . showTree

showTree :: (Functor f, Foldable f, ShowF f) => Mu f -> String

Creates a string representation which can be printed with putStrLn.

graphvizTree :: (Traversable f, ShowF f) => Mu f -> String

Generate a graphviz .dot file

Customizable tree drawing

drawTreeWith :: (Functor f, Foldable f) => (f Hole -> String) -> Mu f -> IO ()

showTreeWith :: (Functor f, Foldable f) => (f Hole -> String) -> Mu f -> String

graphvizTreeWith :: Traversable f => (f Hole -> String) -> Mu f -> String