On GHCi prompt the arrow (movement) keys create strange character sequences
Fire up GHCi
and sit on the arrow down (or left) keys. This is what I get after constantly pressing for some time:
$ ghci
GHCi, version 8.1.20160202: http://www.haskell.org/ghc/ :? for help
Loaded GHCi configuration from /home/ggreif/.ghci
Prelude> OBOBOBBOBOBOBOBOBOBOBCOCCOCOCCOCCOC
<interactive>:1:1: error:
Data constructor not in scope: OBOBOBBOBOBOBOBOBOBOBCOCCOCOCCOCCOC
When such a strange letter appears, there is also a blinking of the terminal.
It is not happening on Windows. I have seen it on RHEL5 and RHEL6.
Pretty annoying, especially when you want to quickly navigate in the repl.
This is probably a haskeline
bug, but I am coming here to see whether others suffer from it too, i.e. is it reproducible for elseone?
Trac metadata
Trac field | Value |
---|---|
Version | 8.1 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | GHCi |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |