[GHC] #13329: Windows CMD.EXE "Quick Edit Mode"

[GHC]

#13329: Windows CMD.EXE "Quick Edit Mode"
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           Reporter:  irongremlin    |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Compiler       |           Version:  8.0.1
           Keywords:  clipboard,     |  Operating System:  Windows
  quick edit                         |
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 Behavior:

 When a compiled haskell executable launches into a windows 7 'cmd.exe'
 terminal session, it does not respect the users 'quick edit mode' setting,
 and launches with the system default setting instead.

 I have not replicated this issue on other versions of windows.

 Details:
 For a description of the feature behavior, see:
 https://blogs.msdn.microsoft.com/adioltean/2004/12/27/useful-copypaste-
 trick-in-cmd-exe/

 The registry key entry controlling this setting is:
 HKEY_CURRENT_USER\Console\QuickEdit (1 == on, 0 ==off)

 Tiny illustrative program:

 main :: IO ()
 putStrLn "Try to copy this text" >>=(\_ -> getLine) >>= putStrLn

 Additional notes:

 The workaround is pretty simple, launch the program from a .bat script -

 cmd /K myscript.exe

 Or from inside an existing cmd.exe session, and the problem goes away.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13329>
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