From 50958fc5f2aad6f72fa8b948f8fa33713beb91a1 Mon Sep 17 00:00:00 2001
From: Jed Barber <jjbarber@y7mail.com>
Date: Tue, 18 Feb 2014 01:10:00 +1100
Subject: Added basic command line programs to invoke Fractran and Thue
 interpreters

---
 fractran.hs | 38 ++++++++++++++++++++++++++++++++++++++
 makefile    | 19 ++++++++++++++-----
 thue.hs     | 38 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 90 insertions(+), 5 deletions(-)
 create mode 100644 fractran.hs
 create mode 100644 thue.hs

diff --git a/fractran.hs b/fractran.hs
new file mode 100644
index 0000000..7f3946f
--- /dev/null
+++ b/fractran.hs
@@ -0,0 +1,38 @@
+
+import System.Environment( getArgs )
+import Data.Typeable
+import qualified Control.Exception
+import Fractran.Parser
+import Fractran.Interpreter
+
+
+data FractranException = FractranException { errString :: String }
+    deriving (Show, Typeable)
+
+instance Control.Exception.Exception FractranException
+
+
+
+usageString :: String
+usageString = "Usage: fractran <program file>"
+
+
+
+program :: IO ()
+program = do
+	args <- getArgs
+	fileContents <- if (length args /= 1)
+		            then Control.Exception.throw (FractranException usageString)
+		            else readFile (head args)
+
+	case (parseFractran fileContents) of
+		Left x -> putStrLn (show x)
+		Right x -> putStrLn (show (fractran x))
+
+
+
+main = Control.Exception.catch program handler
+        where
+        	handler :: FractranException -> IO ()
+        	handler err = putStrLn (errString err)
+
diff --git a/makefile b/makefile
index d5a3939..961af1a 100644
--- a/makefile
+++ b/makefile
@@ -1,10 +1,12 @@
 
-OUTPUTDIR = ./bin
+OUTPUTDIR = bin
 
-EXECUTABLES = ${OUTPUTDIR}/test
+EXECUTABLES = ${OUTPUTDIR}/test ${OUTPUTDIR}/fractran ${OUTPUTDIR}/thue
 
 
-all: test
+
+all: testprog fractranprog thueprog
+
 
 clean:
 	find . -name '*.hi' -delete
@@ -14,6 +16,13 @@ distclean:
 	rm ${EXECUTABLES}
 
 
-test:
-	ghc --make ./test.hs -o ${OUTPUTDIR}/test
+
+testprog:
+	ghc --make test.hs -o ${OUTPUTDIR}/test
+
+fractranprog:
+	ghc -XDeriveDataTypeable --make fractran.hs -o ${OUTPUTDIR}/fractran
+
+thueprog:
+	ghc -XDeriveDataTypeable --make thue.hs -o ${OUTPUTDIR}/thue
 
diff --git a/thue.hs b/thue.hs
new file mode 100644
index 0000000..6630e6d
--- /dev/null
+++ b/thue.hs
@@ -0,0 +1,38 @@
+
+import System.Environment( getArgs )
+import Data.Typeable
+import qualified Control.Exception
+import Thue.Parser
+import Thue.Interpreter
+
+
+data ThueException = ThueException { errString :: String }
+    deriving (Show, Typeable)
+
+instance Control.Exception.Exception ThueException
+
+
+
+usageString :: String
+usageString = "Usage: thue <program file>"
+
+
+
+program :: IO ()
+program = do
+	args <- getArgs
+	fileContents <- if (length args /= 1)
+		            then Control.Exception.throw (ThueException usageString)
+		            else readFile (head args)
+
+	case (parseThue fileContents) of
+		Left x -> putStrLn (show x)
+		Right x -> (thue x) >>= (putStrLn . show)
+
+
+
+main = Control.Exception.catch program handler
+        where
+        	handler :: ThueException -> IO ()
+        	handler err = putStrLn (errString err)
+
-- 
cgit