[GHC] #3455: Add a setting to change how Unicode encoding errors are handled

[GHC]

#3455: Add a setting to change how Unicode encoding errors are handled
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    Reporter:  judahj            |        Owner:                  
        Type:  proposal          |       Status:  new             
    Priority:  normal            |    Milestone:  Not GHC         
   Component:  libraries/base    |      Version:  6.10.4          
    Severity:  normal            |   Resolution:                  
    Keywords:                    |   Difficulty:  Unknown         
    Testcase:                    |           Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |  
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Comment (by simonmar):

 It looks like the main question here is whether the `IOError` should be
 returned explicitly (as in your patch), or whether we should just catch
 the exception.  All things being equal, catching the exception would be
 simpler, as it wouldn't require any changes in the codecs.  Is there a
 reason why you didn't do it that way?  Perhaps because you want to be sure
 that the exception is really an encoding error, and not some other kind of
 exception?  If that's the case, then we should introduce a new exception
 for encoding errors (that's probably a good idea anyway).

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3455#comment:2>
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