Re: [Haskell-cafe] [ANNOUNCEMENT] xmobar 0.14

On Sat, Dec 10, 2011 at 5:31 PM, Brandon Allbery wrote:

On Sat, Dec 10, 2011 at 18:25, Peter Simons wrote:

...

previous versions of xmobar used to compile fine with GHC 6.10.4, but the new version no longer does:

   src/Parsers.hs:163:52:        Couldn't match expected type `Char' against inferred type `[Char]'          Expected type: GenParser Char st Char          Inferred type: GenParser Char st String        In the second argument of `($)', namely `wrapSkip $ string "Run"'        In a stmt of a 'do' expression:              notFollowedBy $ wrapSkip $ string "Run"

xmobar currently requires parsec 3.x; the above is the symptom of building it against 2.x.

It's not clear to me from reading the sources and type signatures of 'notFollowedBy' why this is different in parsec 2 vs. parsec 3. Am I missing something easy? Because if it isn't obvious perhaps it wasn't on purpose. Antoine