From 281425310c5db21f87981eeb9601a71d1974d98d Mon Sep 17 00:00:00 2001
From: Jed Barber <jjbarber@y7mail.com>
Date: Thu, 10 Apr 2014 05:25:03 +1000
Subject: Rearranging files

---
 src/fractran.hs | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 src/fractran.hs

(limited to 'src/fractran.hs')

diff --git a/src/fractran.hs b/src/fractran.hs
new file mode 100644
index 0000000..224cb05
--- /dev/null
+++ b/src/fractran.hs
@@ -0,0 +1,30 @@
+
+import System.Environment( getArgs )
+import Control.Exception( ErrorCall(..), Handler(..), catches )
+import Fractran.Parser
+import Fractran.Interpreter
+
+
+
+
+usageString :: String
+usageString = "Usage: fractran <program file>"
+
+
+
+program :: IO ()
+program = do
+	args <- getArgs
+	fileContents <- if (length args /= 1)
+		            then error usageString
+		            else readFile (head args)
+
+	case (parseFractran fileContents) of
+		Left x -> putStrLn (show x)
+		Right x -> putStrLn (show (fractran x))
+
+
+
+main = catches program
+               [ Handler ((\e -> putStrLn . show $ e) :: ErrorCall -> IO ()) ]
+
-- 
cgit