Brainfuck interpreter frontend

2 files changed, 38 insertions, 2 deletions

diff --git a/brainfuck.hs b/brainfuck.hs
new file mode 100644
index 0000000..5f13ae6
--- /dev/null
+++ b/brainfuck.hs
@@ -0,0 +1,30 @@
+
+import System.Environment( getArgs )
+import Control.Exception( ErrorCall(..), Handler(..), catches )
+import Brainfuck.Parser
+import Brainfuck.Interpreter
+
+
+
+
+usageString :: String
+usageString = "Usage: brainfuck <program file>"
+
+
+
+program :: IO ()
+program = do
+	args <- getArgs
+	fileContents <- if (length args /= 1)
+		            then error usageString
+		            else readFile (head args)
+
+	case (parseBrainfuck fileContents) of
+		Left x -> putStrLn (show x)
+		Right x -> brainfuck x >> return ()
+
+
+
+main = catches program
+               [ Handler ((\e -> putStrLn . show $ e) :: ErrorCall -> IO ()) ]
+
diff --git a/makefile b/makefile
index 0eb8b14..66a2928 100644
--- a/makefile
+++ b/makefile
@@ -1,13 +1,17 @@
 
 OUTPUTDIR = bin
 
-EXECUTABLES = ${OUTPUTDIR}/test ${OUTPUTDIR}/fractran ${OUTPUTDIR}/thue ${OUTPUTDIR}/unlambda
+EXECUTABLES  =  ${OUTPUTDIR}/test \
+                ${OUTPUTDIR}/fractran \
+                ${OUTPUTDIR}/thue \
+                ${OUTPUTDIR}/unlambda \
+                ${OUTPUTDIR}/brainfuck
 
 SWITCHES = -XDeriveDataTypeable
 
 
 
-all: testprog fractranprog thueprog unlambdaprog
+all: testprog fractranprog thueprog unlambdaprog brainfuckprog
 
 
 clean:
@@ -31,3 +35,5 @@ thueprog:
 unlambdaprog:
 	ghc ${SWITCHES} --make unlambda.hs -o ${OUTPUTDIR}/unlambda
 
+brainfuckprog:
+	ghc ${SWITCHES} --make brainfuck.hs -o ${OUTPUTDIR}/brainfuck