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better tree viz

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aarne
2005-06-21 14:49:08 +00:00
parent 1073bc1d3f
commit 0c71d62d4c
1 changed files with 19 additions and 16 deletions
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35
src/GF/Visualization/VisualizeTree.hs
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@@ -26,28 +26,31 @@ import Data.List (intersperse, nub)
import Data.Maybe (maybeToList)
visualizeTrees :: Options -> [Tree] -> String
visualizeTrees opts = unlines . map (prGraph . tree2graph opts)
visualizeTrees opts = unlines . map (prGraph opts . tree2graph opts)
tree2graph :: Options -> Tree -> [String]
tree2graph opts = prf (0,0) where
prf (i,j) t@(Tr (node, trees)) =
let nod = prn (i,j) node in
(nod ++ " [style = \"solid\", shape = \"plaintext\"] ;") :
[pra (i+1,j) nod t | (j,t) <- zip [0..] trees] ++
concat [prf (i+1,j) t | (j,t) <- zip [0..] trees]
prn (i,j) (N (bi,at,val,_,_)) =
"\"" ++ prs i ++
prb bi ++
prc at val ++
prs j ++ "\""
tree2graph opts = prf [] where
prf ps t@(Tr (node, trees)) =
let (nod,lab) = prn ps node in
(nod ++ " [label = " ++ lab ++ ", style = \"solid\", shape = \"plaintext\"] ;") :
[ pra (j:ps) nod t | (j,t) <- zip [0..] trees] ++
concat [prf (j:ps) t | (j,t) <- zip [0..] trees]
prn ps (N (bi,at,val,_,_)) =
let
lab =
"\"" ++
prb bi ++
prc at val ++
"\""
in if oElem (iOpt "g") opts then (lab,lab) else (show(show (ps :: [Int])),lab)
prb [] = ""
prb bi = "\\" ++ concat (intersperse "," (map (prt_ . fst) bi)) ++ " -> "
pra i nod t@(Tr (node,_)) = nod ++ " -- " ++ prn i node ++ " [style = \"solid\"];"
prs k = if oElem (iOpt "g") opts then "" else replicate k ' '
pra i nod t@(Tr (node,_)) = nod ++ arr ++ fst (prn i node) ++ " [style = \"solid\"];"
prc a v
| oElem (iOpt "c") opts = prt_ v
| oElem (iOpt "f") opts = prt_ a
| otherwise = prt_ a ++ " : " ++ prt_ v
arr = if oElem (iOpt "g") opts then " -> " else " -- "
prGraph ns = concat $ map (++"\n") $ ["graph {\n"] ++ ns ++ ["}"]
prGraph opts ns = concat $ map (++"\n") $ [graph ++ "{\n"] ++ ns ++ ["}"] where
graph = if oElem (iOpt "g") opts then "digraph" else "graph"