[Xmonad] darcs patch: change Dmenu functions to return IO/X (Maybe String)

[Andrea Rossato]

On Sun, Oct 07, 2007 at 12:03:59AM -0500, Spencer Janssen wrote:
> On Saturday 06 October 2007 02:17:02 Devin Mullins wrote:
> > Sat Oct  6 03:09:59 EDT 2007  Devin Mullins <me at twifkak.com>
> >   * change Dmenu functions to return IO/X (Maybe String)
> >   dmenu exits with code 1 when you hit Escape, and I wanna create a contrib
> > that takes advantage of that.
> >
> >   This required changes in four contribs (Commands, DirectoryPrompt,
> > ShellPrompt, and WorkspaceDir), and might require changes in users'
> > Configs. Also, I'm not sure some of the changes I made to the client code
> > are very Haskelly. Would appreciate input there.
> 
> Applied.

I don't think this is a useful patch: runProcessWithInpunt was a
useful function that returned a String. Checking for an empty string
was enough.

Sounds to me very much like a Maybe [String].

Just my 2 cents.

Andrea