[Haskell-cafe] ErrorT and catchError question
Brandon S. Allbery KF8NH
allbery at ece.cmu.edu
Tue Jan 15 00:33:51 EST 2008
On Jan 15, 2008, at 0:28 , Adam Smyczek wrote:
> It's probably a trivial question, but I cannot figure out
> how to implement the catchError function in:
> instance MonadError String Shell where
> throwError = error . ("Shell failed: "++)
> catchError l h = ???
Take a look at Control.Exception.catch for starters.
brandon s. allbery [solaris,freebsd,perl,pugs,haskell] allbery at kf8nh.com
system administrator [openafs,heimdal,too many hats] allbery at ece.cmu.edu
electrical and computer engineering, carnegie mellon university KF8NH
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