Merge pull request #1 from lethalman/master

Fix parsing of rec sets with reserved keyword

Nix/Parser.hs

@@ -96,10 +96,10 @@ nixIf = Fix <$> (NIf
 setLambdaStringOrSym :: Bool -> Parser NExpr
 setLambdaStringOrSym allowLambdas = do
     trace "setLambdaStringOrSym" $ return ()
-    x <- try (lookAhead identifier)
-        <|> try (lookAhead (singleton <$> char '{'))
-        <|> return ""
-    if x == "rec" || x == "{"
+    isSetOrArgs <- try (lookAhead (reserved "rec") *> pure True) <|>
+                   try (lookAhead (singleton <$> char '{') *> pure True)
+                   <|> pure False
+    if isSetOrArgs
         then setOrArgs
         else do
             trace "might still have a lambda" $ return ()