top-level toy compiler - far from complete

devel/compiler/Top.hs

@@ -0,0 +1,34 @@
+module Main where
+
+import IO ( stdin, hGetContents )
+import System ( getArgs, getProgName )
+
+import LexSrc
+import ParSrc
+import SkelSrc
+import PrintSrc
+import AbsSrc
+
+import Compile
+import PrEnv
+
+import ErrM
+
+type ParseFun a = [Token] -> Err a
+
+myLLexer = myLexer
+
+runFile :: ParseFun Grammar -> FilePath -> IO ()
+runFile p f = readFile f >>= run p
+
+run :: ParseFun Grammar -> String -> IO ()
+run p s = let ts = myLLexer s in case p ts of
+           Bad s    -> do putStrLn "Parse Failed...\n"
+                          putStrLn s
+           Ok  tree -> prEnv $ compile tree
+
+main :: IO ()
+main = do args <- getArgs
+          case args of
+            fs -> mapM_ (runFile pGrammar) fs
+