[GHC] #11695: On GHCi prompt the arrow (movement) keys create strange character sequences

GHC ghc-devs at haskell.org
Fri Mar 11 03:24:07 UTC 2016


#11695: On GHCi prompt the arrow (movement) keys create strange character sequences
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        Reporter:  heisenbug     |                Owner:
            Type:  bug           |               Status:  new
        Priority:  normal        |            Milestone:
       Component:  GHCi          |              Version:  8.1
      Resolution:                |             Keywords:
Operating System:  Linux         |         Architecture:  x86_64 (amd64)
 Type of failure:  None/Unknown  |            Test Case:
      Blocked By:                |             Blocking:
 Related Tickets:                |  Differential Rev(s):
       Wiki Page:                |
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Comment (by judahj):

 By any chance are you using tmux or a similar program?  If so, check out
 the instructions here (your symptoms sound similar):

 https://github.com/judah/haskeline/wiki/UsingTmux

 Otherwise, can you give a little more information about your setup?
 - What is the value of $TERM
 - What terminal program (e.g. xterm) you're using
 - To try to figure out exactly what's confusing ghci: can you explain more
 what "$DISPLAY is a vnc session on a different box" means?  I'm not
 familiar with that kind of setup.  Which machine are you actually typing
 text into, and how is that text being relayed to the server that's
 actually running ghci?

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11695#comment:4>
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