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X-Bullshit: method reduce/map optimizer 
Subject: Re: [9front] program to bind/rebind keys
Reply-To: 9front@9front.org
Precedence: bulk

Quoth binary cat <dogedoge61@gmail.com>:
> The program would operate by opening /dev/kbd, then binding its output
> to /dev/kbd.
> It would read a list of keybindings (from a file and/or command line options),
> then operate in a loop of reading a key from (the old) /dev/kbd, checking if it
> matches any of the bindings given to it. If it finds a match, it executes the
> action associated with it. Otherwise, it passes the keypress on.
> 
> This could be used for global keyboard shortcuts by wrapping around rio,
> or for per-program keyboard shortcuts.
> 
> `awk` is surprisingly close to working for this, but it has a few problems,
> both with reading input delimited by NUL instead of LF, and with
> non-printable characters in regular expressions.
> 
> I'm up to provide a bounty for this, although first I'd like to have a rough
> idea of how difficult it would be to either write such a program, or to
> fix the problems with `awk`, so I know how much a reasonable bounty
> would be.
> 
> -- binarycat

One of the easy approaches used in riow[1] is to catch all keyboard
events that involve a specific modifier, Mod4 in this case, export it
via fs, and convert to plain text form in another small program.
Those then are used to do window management.

[1] https://git.sr.ht/~ft/riow