OMG --- that was it --- I can't tell you how many hours I have been wrestling with this.
Thank you so much for the quick response. I was aware that Haskell required indentation for some things (and I'm a fan of indentation) but I didn't realize it required NO indentation for some things --- I thought that went away with FORTRAN (grin) D On Dec 14, 2010, at 4:37 PM, Patrick LeBoutillier wrote: > Hi, > > Make sure the line > > data JValue ... > > is not indented. I should start at the first column. > > > Patrick > > > On Tue, Dec 14, 2010 at 4:28 PM, dhjdhj <dhj...@gmail.com> wrote: >> >> >> >> I'm sure this question has been asked many times but I have not been able to >> find it anywhere. >> >> >> I have written the code below into Lekseh directly from the RWH book. >> However, I always get the error >> >> parse error on input 'getString' and the line number refers to the type >> declaration for getString. >> >> I have no idea what's wrong and would appreciate any suggestions to get past >> this. >> >> Thanks in advance >> >> David >> ---------------------------- >> >> >> >> module SimpleJSON ( >> >> JValue(..), >> getString, >> getInt, >> getDouble, >> getBool, >> getObject, >> getArray, >> isNull >> ) >> >> where >> >> >> >> data JValue = JString String >> | JNumber Double >> | JBool Bool >> | JNull >> | JObject [ (String, JValue) ] >> | JArray [JValue] >> >> deriving (Eq, Ord, Show) >> >> >> getString :: JValue -> Maybe String >> getString (JString s) = Just s >> getString _ = Nothing >> >> getInt (JNumber n) = Just (truncate n) >> getInt _ = Nothing >> >> getDouble (JNumber n) = Just n >> getDouble _ = Nothing >> >> getBool (JBool b) = Just b >> getBool _ = Nothing >> >> getObject (JObject o) = Just o >> getObject _ = Nothing >> >> getArray (JArray a) = Just a >> getArray _ = Nothing >> >> isNull v = v == JNull >> >> >> >> -- >> View this message in context: >> http://haskell.1045720.n5.nabble.com/I-m-a-beginner-struggling-with-the-SimpleJSON-example-from-Real-World-Haskell-tp3305331p3305331.html >> Sent from the Haskell - Haskell mailing list archive at Nabble.com. >> >> _______________________________________________ >> Haskell mailing list >> Haskell@haskell.org >> http://www.haskell.org/mailman/listinfo/haskell >> > > > > -- > ===================== > Patrick LeBoutillier > Rosemère, Québec, Canada > _______________________________________________ Haskell mailing list Haskell@haskell.org http://www.haskell.org/mailman/listinfo/haskell
