Set vi as editor in GHCi

Question

How can I get vi editing mode to work in GHCi?

I'm using version 7.10.3.

I tried Prelude> :set editor vi, but to no effect.

I also have these lines in my ~/.inputrc.

set editing-mode vi
set keymap vi

.

Answer 1

GHCi now uses the Haskeline library for command line editing (which has been true for quite a while now), and it does indeed have a vi mode. The configuration file is ~/.haskeline and the line you want is:

editMode: Vi

Documented here: https://github.com/judah/haskeline/wiki/UserPreferences