On 29/08/13 00:43, Malcolm Wallace wrote: > Have you tried simply wrapping the call to runCpphs in a "catch"? Something > like > > safeRunCpphs :: ... -> IO (Either String String) > safeRunCpphs foo = fmap Right (runCpphs foo) `catch` (\(UserError s)-> > Left s
Yes, that is what I'm doing at the moment. The problem with this is that it does not allow me to distinguish between a programmer error (error) on the caller or implementation side, and an #error in the input file. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
