monad-journal is a simple but powerful answer to the logging problem. A lot
of people think that “logging” is IO-related, while it’s not. Everyone must
know MonadWriter
, which is perfect to log things in pure computations. The issue is that you
can’t access those “things” inside the computation itself. monad-journal
exposes a cool typeclass called MonadJournal that enables you to do so.
Changes
CHANGELOG
0.8.1
Removed the either dependency. It was not needed anymore!
0.8.0
Added support for either-4.5. This support breaks compatibility as we don’t have EitherT
anymore. If you used it, please fall back to ExceptT, which has the same interface.
0.7.1
Added support for either 4.4.1.
0.7
Added support for GHC 7.10.
0.6.0.2
Fixed compilation error. That was due to the change regarding
monad-control-1.0.
0.6.0.1
Fixed bug about monad-control and type / data families.
0.6
monad-control 1.0.0.1 qualified.
0.5
license is now BSD3!;
enhanced the documentation in all modules;
added README.md.
0.4.0.2
added the changelog in the package description (.cabal).
0.4.0.1
added the source-repository head field in the .cabal file;
added the bug-reports field in the .cabal file;
change author and maintainer format.
0.4
actually, lower bound is better for now; using mtl-2.1.
0.3
now using lower-bound mtl’s version 0.2.2.1 for Control.Monad.Except.
