purescript-generic-graphviz

consists of 3 parts (which probably should be seperate modules..):

Dot-Lang typed representation and Dot-Lang code-generator (located in Data.DotLang)
Generic Graph generator (takes an arbituary ADT and generates a graph for it)
Bindings for Graphviz using viz.js

Example

-- your data type
data Tree' a = Leaf' | Node' (Tree' a) a (Tree' a)

-- derive generic
derive instance treeGeneric :: Generic (Tree' a) _

-- create instances for the needed type classes
instance treeEdges :: Edges a => Edges (Tree' a) where edges x = genericEdges x
instance treeDotRepr ::  Edges a => GraphRepr (Tree' a) where toGraph = genericToGraph

example :: String
example = renderToSvg Dot $ toGraph $
  Node' Leaf' 3 (Node' (Node' Leaf' 5 Leaf') 4 Leaf')
-- example = "...<svg><g>...</g>...</svg>..."

see full file for imports

TODOs

Refactor into multiple libraries
support entine DOT language in data model
allow custom edges in GenericGraph