[xmonad] ManageHook question

[Sean Allen]

Thanks Brandon.

I'm constantly amused by what haskell I can figure out to get stuff
working in and what I can't.
I'm going to dig deeper into your explanation and hopefully really
learn something.



On Sat, Mar 5, 2011 at 2:45 AM, Brandon S Allbery KF8NH
<allbery.b at gmail.com> wrote:
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> On 3/5/11 02:28 , Sean Allen wrote:
>> title =? 'downloads' --> doIgnore
>>
>> but instead of exactly matching title against 'downloads' we want to
>> run the doIgnore for any window whose title contains 'downloads'.
>
> It's kinda ugly:
>
>    ("downloads" `isInfixOf`) `fmap` title --> doIgnore
>
> or equivalently
>
>    fmap (isInfixOf "downloads") title --> doIgnore
>
> More generally, to apply a comparison operation of some kind to a Query
> string, use "fmap" to run it "inside" the Query.  So you can read the first
> version somewhat naturally as 'run ("downloads" `isInfixOf` x) with "x"
> being the string inside of "title"'.
>
> (You will probably need "import Data.List (isInfixOf)" at the top of your
> xmonad.hs.)
>
> - --
> brandon s. allbery     [linux,solaris,freebsd,perl]    allbery.b at gmail.com
> system administrator  [openafs,heimdal,too many hats]                kf8nh
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