[GHC] #4316: Interactive "do" notation in GHCi

[GHC]

#4316: Interactive "do" notation in GHCi
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  Reporter:  mitar            |          Owner:  vivian          
      Type:  feature request  |         Status:  new             
  Priority:  normal           |      Milestone:  7.2.1           
 Component:  GHCi             |        Version:  6.12.3          
Resolution:                   |       Keywords:                  
  Testcase:                   |      Blockedby:                  
Difficulty:                   |             Os:  Unknown/Multiple
  Blocking:                   |   Architecture:  Unknown/Multiple
   Failure:  None/Unknown     |  
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Comment(by simonmar):

 Replying to [comment:19 vivian]:

 > I add {{{Opt_AlternativeLayoutRule}}} as a dynamic flag.  I'm checking
 to see if the list of ALRContexts is empty and whether an opening curly
 brace is expected but this does not appear to be sufficient.  What in the
 "state of the lexer" should I be checking?

 I don't know.  In what way is it not sufficient, can you give an example?

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4316#comment:22>
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