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List:       freedesktop-xorg
Subject:    Re: Config XKB to map a key combination to another
From:       wettstae () gmail ! com
Date:       2018-06-04 16:21:49
Message-ID: 87po16a5eq.fsf () 509 ! ch
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> I'm trying to create a bunch of mappings like this:
> `Hyper+Shift+C` -> `Ctrl+Shift+C`
> `Hyper+Left` -> `Alt+Left`
> `Alt+Left` -> `Ctrl+Left`
> `Super+Left` -> `Home`
> How can I do it in xkb config files?

You can change the modifiers with Redirect actions.  For example, for
the LEFT key, use something similar to this (untested, assuming Alt =
Mod1, Super = Mod4, and Hyper = Mod2):

key <LEFT> {
   type = "ALT_SUPER_HYPER",
   symbols = [ Left, Left, Left, Left, Left, Left, Left, Left ],
   actions = [ NoAction(), RedirectKey(key=<LEFT>, clearMods=Mod1, mods=Control),
               RedirectKey(key=<HOME>, clearMods=Mod4), NoAction(),
               RedirectKey(key=<LEFT>, clearMods=Mod2, mods=Mod1), NoAction(),
               NoAction(),  NoAction() ]
}

The type ALT_SUPER_HYPER above you must provide as well; I assumed that
it is a eight level key with Alt as level 2 shift, and Super and Hyper
as Level 3 and Level 5 shift, respectively.  If you have a look in
directory xkb/types, you certainly will figure out how that works.  The
only thing special is that you should use `preserve` for all modifier
combinations; you can see preserve in action in file xkb/types/level5.

Andreas
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