GHCi in colour

This page documents efforts to colourise GHCi output.

Example

Or a type error:

Output like this would be the result of running, for example:

   ghci --colour

and would appear in the console/xterm as ansi terminal coloured output.

Implementation

Using HsColour

An existing tool, HsColour, could be modified to operate interactively.

GuiHaskell

Neil Mitchell has a prototype gui haskell wrapper, based on gtk. Does this contain a reasonable ghci wrapper we could steal?

If you have an idea of how to do this nicely, add your proposal here.