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GHCi in colour

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(ui)
(note this is already kinda possible with HsColour)
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An existing tool, [http://www.cs.york.ac.uk/fp/darcs/hscolour/ HsColour],
 
An existing tool, [http://www.cs.york.ac.uk/fp/darcs/hscolour/ HsColour],
could be modified to operate interactively.
+
could be modified to operate interactively. In fact, HsColour is already interactive, and
  +
with a small patch added on 2006-12-14 to control ouput buffering better, this works
  +
relatively nicely:
  +
  +
ghci 2>&1 | HsColour -tty
   
 
=== GuiHaskell ===
 
=== GuiHaskell ===

Revision as of 17:17, 14 December 2006

This page documents efforts to colourise GHCi output.

Contents

1 Example

   Colour-ghci.png

Or a type error:

   Coloured-error.png

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.

2 Implementation

2.1 Using HsColour

An existing tool, HsColour, could be modified to operate interactively. In fact, HsColour is already interactive, and with a small patch added on 2006-12-14 to control ouput buffering better, this works relatively nicely:

   ghci 2>&1 | HsColour -tty

2.2 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.