1 files changed, 59 insertions, 0 deletions
diff --git a/Schmim.hs b/Schmim.hs
new file mode 100644
index 0000000..3c0bc79
--- /dev/null
+++ b/Schmim.hs
@@ -0,0 +1,59 @@
+module Main where
+
+import System.IO ( stdin, hGetContents )
+import System.Environment ( getArgs, getProgName )
+import System.Exit ( exitFailure, exitSuccess )
+
+import Parser.LexSchmim
+import Parser.ParSchmim
+import Parser.SkelSchmim
+import Parser.PrintSchmim
+import Parser.AbsSchmim
+
+import Eval
+
+import Parser.ErrM
+
+type ParseFun a = [Token] -> Err a
+
+myLLexer = myLexer
+
+type Verbosity = Int
+
+putStrV :: Verbosity -> String -> IO ()
+putStrV v s = if v > 1 then putStrLn s else return ()
+
+runFile :: Verbosity -> ParseFun Exp -> FilePath -> IO ()
+runFile v p f = readFile f >>= run v p
+
+run :: Verbosity -> ParseFun Exp -> String -> IO ()
+run v p s = let ts = myLLexer s in case p ts of
+           Bad s    -> do putStrLn "\nParse              Failed...\n"
+                          exitFailure
+           Ok  tree -> do let res = interp tree
+                          case res of
+                            (Left err) -> do putStrLn $ "Error: " ++ err
+                                             exitFailure
+                            (Right v) -> print v
+
+                          exitSuccess
+
+usage :: IO ()
+usage = do
+  putStrLn $ unlines
+    [ "usage: Call with one of the following argument combinations:"
+    , "  --help          Display this help message."
+    , "  (no arguments)  Parse stdin verbosely."
+    , "  (files)         Parse content of files verbosely."
+    , "  -s (files)      Silent mode. Parse content of files silently."
+    ]
+  exitFailure
+
+main :: IO ()
+main = do
+  args <- getArgs
+  case args of
+    ["--help"] -> usage
+    [] -> hGetContents stdin >>= run 2 pExp
+    "-s":fs -> mapM_ (runFile 0 pExp) fs
+    fs -> mapM_ (runFile 2 pExp) fs