Earlier quoted context omitted.
It worked rather badly with Haskell last time I checked (Darwin, Fish shell).
I'm sorry to hear that but I'm happy to help if there is anything I can do as a maintainer. The Haskell plugin isn't maintained by the core team, and it may have some issues of it's own that need to be fixed. If there was something specific that caused you trouble let me know and I'll see what I can do to get it addressed.
Thanks a lot for the reply and willingness to help, but I'm not using anything Haskell related at the moment. Might submit some issues in the future though.