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-- automatically generated by BNF Converter
module Main where
import IO ( stdin, hGetContents )
import System ( getArgs, getProgName )
import LexGF
import ParGF
import SkelGF
import PrintGF
import AbsGF
import ErrM
type ParseFun a = [Token] -> Err a
myLLexer = myLexer
runFile :: (Print a, Show a) => ParseFun a -> FilePath -> IO ()
runFile p f = readFile f >>= run p
run :: (Print a, Show a) => ParseFun a -> String -> IO ()
run p s = case (p (myLLexer s)) of
Bad s -> do putStrLn "\nParse Failed...\n"
putStrLn s
Ok tree -> do putStrLn "\nParse Successful!"
putStrLn $ "\n[Abstract Syntax]\n\n" ++ show tree
putStrLn $ "\n[Linearized tree]\n\n" ++ printTree tree
main :: IO ()
main = do args <- getArgs
case args of
[] -> hGetContents stdin >>= run pGrammar
[f] -> runFile pGrammar f
_ -> do progName <- getProgName
putStrLn $ progName ++ ": excess arguments."
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