Brainfuck parser, it really is simple to write

1 files changed, 46 insertions, 0 deletions

diff --git a/Brainfuck/Parser.hs b/Brainfuck/Parser.hs
new file mode 100644
index 0000000..1f2a414
--- /dev/null
+++ b/Brainfuck/Parser.hs
@@ -0,0 +1,46 @@
+module Brainfuck.Parser (
+	parseBrainfuck
+    ) where
+
+import Control.Applicative( some )
+import Text.ParserCombinators.Parsec
+
+
+
+type BrainfuckProgram = [BrainCom]
+
+
+data BrainCom = R | L | Inc | Dec | Out | In | OpenLoop | CloseLoop
+    deriving (Show, Eq)
+
+
+
+
+parseBrainfuck :: String -> Either ParseError BrainfuckProgram
+parseBrainfuck = parse brainfuck "error"
+
+
+
+
+brainfuck = many commentChar >> many fuck
+
+
+fuck = do
+	f <- brainCommand
+	many commentChar
+	return f
+
+
+brainCommand =  try (char '>' >> return R)
+            <|> try (char '<' >> return L)
+            <|> try (char '+' >> return Inc)
+            <|> try (char '-' >> return Dec)
+            <|> try (char '.' >> return Out)
+            <|> try (char ',' >> return In)
+            <|> try (char '[' >> return OpenLoop)
+            <|> try (char ']' >> return CloseLoop)
+            <?> "brainfuck command"
+
+
+commentChar = noneOf "><+-.,[]"
+