layerkey
========

A simple utility that allows you to easily configure a second keyboard layer
and generate a corresponding `.json` file to use with Karabiner-Elements.


Installation
------------

In the project root, run:

    make install
    
This will install layerkey to `~/.local/bin/` and create a config directory
in `~/.config/layerkey/`.

Usage
-----

Edit the configuration file in `~/.config/layerkey/config` then run:

    layerkey <key code>

where `<key code>` is the key code of the key that should activate the layer,
for example `grave_accent_and_tilde`.

If you don't know the key code, open Karabiner-EventViewer and press the key.
    
If the command is not found then `~/.local/bin/` might not be in your `$PATH`,
in that case, add it:

    export PATH="$PATH:$HOME/.local/bin"
    
This will create a file `~/.config/layerkey/layer.json`.

To add it to Karabiner-Elements:

1. Open Karabiner-Elements
2. Navigate to 'Complex Modifications'
3. Select 'Add your own rule'
4. Copy and paste the contents of `~/.config/layerkey/layer.json`


Configuration
-------------

Simply replace the character you want to remap with the character you want
to remap it to.  Here is an example of what a config might look like:

    ,---,---,---,---,---,---,---,---,---,---,---,---,---,-------,
    |   | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 |   |   |       |
    |---'-,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-'-,-----|
    |     | q | < | > | - | + | ^ | { | } | o | p |   |   |     |
    |-----',--',--',--',--',--',--',--',--',--',--',--',--'-----|
    |      | ! | * | / | _ | = | h | ( | ) | l |   |   |        |
    |------'-,-'-,-'-,-'-+-'-,-'-,-'-+-'-,-'-,-'-,-'-,-'------,-'
    |        | z | x | c | v | b | [ | ] |   |   |   |        |
    |---,----',--'--,'---'---'---'---'---',--'--,'---'------,-'
    |   |     |     |                     |     |    |      |
    '---'-----'-----'---------------------'-----'----'------'

**NOTE**: DO NOT ADD OR REMOVE ANY WHITESPACE

Unfortunately only alphanumeric keys can be remapped at the moment.