[xmonad] ppVisible with 3 screens

[Felix Blanke]

Hi,

are you sure that it doesn't work with only one screen?

Even with only one screen "getSortByXineramaRule" returns a list with 9 workspaces
(I'm using 9 workspaces) in it, right? Logicaly the sorting after the let is wrong
then, but there should be no error.

But like I said: I'm a haskell noob, maybe I'm totaly wrong :)


How would I add that fallback? You wrote some ], but I'm not sure how such a fallback
looks @haskell

myXineramaSorter = do
    srt <- getSortByXineramaRule
    let prm (one:two:rest) = two:one:rest
    return (prm . srt)


Felix



On 09. October 2010 - 20:18, Adam Vogt wrote:
> Date: Sat, 9 Oct 2010 20:18:58 -0400
> From: Adam Vogt <vogt.adam at gmail.com>
> To: xmonad at haskell.org
> Subject: Re: [xmonad] ppVisible with 3 screens
> 
> * On Friday, October 08 2010, Felix Blanke wrote:
> 
> >Hello,
> >
> >thanks a lot for your work!
> >
> >
> >It works :) The short version
> >
> >"let prm (one:two:rest) = two:one:rest"
> >
> >is enough, because I only need to switch the first two elements.
> >With this hack I don't need the colour thing.
> >
> >
> >Thanks again!
> >
> >
> >Regards,
> >Felix
> 
> If you end up using that config with only one screen, that expression
> will throw an exception. XMonad will most likely catch it, but the
> recovery is to try again. Arguably xmonad should do something smarter,
> but until something changes there, you'd get an infinite loop.
> 
> So add a fallback case to the definition:
> 
> ] let prm (one:two:rest) = two:one:rest
> ]     prm x = x
> 
> --
> Adam
> _______________________________________________
> xmonad mailing list
> xmonad at haskell.org
> http://www.haskell.org/mailman/listinfo/xmonad
---end quoted text---