Configurable to allow Caps to be mapped to other things

[Jason Milkins]

It would be nice if we could map Caps to be other things too.

Obviously this may be beyond your intended scope as these mappings already satisfy a common Vim use case (especially when migrating from Karabiner/OS X)

Anyway I thought I would ask the question before deciding to fork or not.

Thanks for building this.

[Francisco Lopes]

As I've commented here, I'm working on a more general tool where caps2esc will be just an special case. I'll leave this open until I finish the other tool.

For your information, it's gonna be more or less like this:

intercept -g $DEVICE | caps2esc | other_mapping | uinput -d $DEVICE

intercept will be a tool to capture input from a given $DEVICE (grabbing it or not through the -g flag) and output it to stdout. caps2esc and other_mapping will be responsible solely for reading input events from stdin and outputting mutated events (or not) to stdout. uinput will be a tool to capture events from stdin and emulating them through a virtual device which can be constructed based on existing ones (-d flag) or through configuration files.

interception will be another tool that will accept a configuration file and will just monitor devices and execute any command when a given attached device matches the configuration. And any command can be one like the one above.

[Rasmus Ansin]

I personally really like that caps2esc does one thing, and one thing only. Any other tools would be cool, of course, but caps2esc staying the same would be nice.

[Francisco Lopes]

@Ran4 I agree. When I go about publishing the general tool I will provide an alternative caps2esc while this one will still live on its own.

[dragon788]

I look forward to your new tool, I'm finding that it grabbing all the xinput items without a filter is conflicting with the xinput-toggle utility that I need for another purpose.

[Francisco Lopes]

@dragon788 caps2esc is now superseded by this more general project https://gitlab.com/interception/linux/tools, you can use it already to filter specific devices by name or other characteristics. A more generalized caps2escplugin regarding key configurations will come later.

[silenc3r]

I like caps2esc being simple but I would prefer to have Esc work as Esc and have CapsLock toggle on Ctrl. It looks like simple tweak but sadly I don't know C.

Edit: Nevermind, changing line 88 to

if (output[0].code == KEY_LEFTCTRL)

did the trick. C ain't that hard ;).