[xmonad] Bug in X.A.Submap

[Khudyakov Alexey]

On Суббота 20 июня 2009 07:37:03 you wrote:
> According to X11/extensions/XKB.h, modifier mask bits starting at  
> (1<<13) indicate group state.  (See XkbBuildCoreState() which builds  
> an event value when Xkb is active.)  I think you want this; while I  
> don't know the Russian keyboard layout, xmonad's default key bindings  
> are less than mnemonic if you're using the Hebrew or Arabic layouts :)  
> so you may want to define a separate, mnemonic key mapping for use in  
> Russian.
>
> (The flip side of this is if you change the group number the Russian  
> layout maps to, you need to make the same change to your xmonad key  
> bindings; this strikes me as bad.)
>
I think key binding should work regardless of current layout. At least normal 
(not Submap based) key bindings works this way. 

So masks >= (1<<13) should be filtered out. I'm not sure where groupmasks 
should be stripped. It's possible either in xmonad's core function 'cleanMask' 
or in Submap itself. I coded latter variant and it works.