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diff --git a/src/GF/Devel/TestGF3.hs b/src/GF/Devel/TestGF3.hs
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+++ b/src/GF/Devel/TestGF3.hs
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+module Main where
+
+import GF.Devel.Grammar.LexGF
+import GF.Devel.Grammar.ParGF
+---- import GF.Devel.Grammar.PrintGF
+import GF.Devel.Grammar.AbsGF
+
+import GF.Devel.Grammar.SourceToGF
+
+import qualified GF.Devel.Grammar.ErrM as GErr ----
+import GF.Data.Operations
+
+import System (getArgs)
+
+main = do
+ f:_ <- getArgs
+ s <- readFile f
+ let tt = myLexer s
+ case pGrammar tt of
+ GErr.Bad s -> putStrLn s
+ GErr.Ok g -> compile g
+
+compile g = do
+ let eg = transGrammar g
+ case eg of
+ Ok _ -> putStrLn "OK"
+ Bad s -> putStrLn s
+ return ()
+