-- turns \n into ' '
-- | grab's the text behind a HpcPos;
grabHpcPos :: Map.Map Int String -> HpcPos -> String
-grabHpcPos hsMap span =
+grabHpcPos hsMap srcspan =
case lns of
[ln] -> (take ((c2 - c1) + 1) $ drop (c1 - 1) ln)
_ -> let lns1 = drop (c1 -1) (head lns) : tail lns
lns2 = init lns1 ++ [take (c2 + 1) (last lns1) ]
in foldl1 (\ xs ys -> xs ++ "\n" ++ ys) lns2
- where (l1,c1,l2,c2) = fromHpcPos span
+ where (l1,c1,l2,c2) = fromHpcPos srcspan
lns = map (\ n -> case Map.lookup n hsMap of
Just ln -> ln
Nothing -> error $ "bad line number : " ++ show n
) [l1..l2]
+
+readFileFromPath :: (String -> IO String) -> String -> [String] -> IO String
+readFileFromPath _ filename@('/':_) _ = readFile filename
+readFileFromPath err filename path0 = readTheFile path0
+ where
+ readTheFile [] = err $ "could not find " ++ show filename
+ ++ " in path " ++ show path0
+ readTheFile (dir:dirs) =
+ catch (do str <- readFile (dir ++ "/" ++ filename)
+ return str)
+ (\ _ -> readTheFile dirs)