[haskeline] #114: does not play well with minTTY on windows

[haskeline]

#114: does not play well with minTTY on windows
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Reporter:  malcolmw  |       Owner:     
    Type:  defect    |      Status:  new
Priority:  minor     |   Milestone:     
 Version:            |    Keywords:     
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 Haskeline, at least when baked into a Windows-native build of ghc, appears
 not to work well with the minTTY terminal emulator.  Neither the arrow
 keys, nor vi key bindings do anything useful - they simply corrupt the
 buffer being passed to the underlying program by adding odd non-printable
 characters.

 I think the cause is similar to the reason that Windows-native Python does
 not work interactively in minTTY without special options.  To quote
 http://code.google.com/p/mintty/issues/detail?id=56

 "This is due to MinTTY being based on Cygwin pty's, which do not play well
 with Windows console apps. [...] basically it's because the pty emulation
 is based on pipes, which means that a Win32 application running in MinTTY
 sees a pipe rather than a console as its input, so it behaves
 differently."

 For instance, the _isatty() call will return False when run inside minTTY.
 The webpage goes into some more details, but I think the main problem is
 that Windows-native (rather than Cygwin) programs have no API available to
 them to manipulate a "pseudo terminal".

 I'm not certain the issue is fixable in Haskeline, but thought it worth
 noting, even if only for googleability.

-- 
Ticket URL: <http://trac.haskell.org/haskeline/ticket/114>
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