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-#+title: KMonad Configuration
-#+author: Preston Pan
-#+description: My Literate KMonad Configuration
-#+html_head: <link rel="stylesheet" type="text/css" href="../style.css" />
-
-* Goals
-** It should be the most efficient keyboard layout possible.
-*** Ergonomic key positions and more frequent keys closer to home row.
-*** Optimize the layers in such a way where we do not need to change layer frequently
-however, layers are still needed because it is sometimes more economical to switch layers rather than to reach.
-
-* Configuration
-** Initial Values
-We must set our initial values for the configuration:
-#+begin_src kbd :tangle config.kbd
-(defcfg
- input (device-file "/dev/input/by-path/platform-i8042-serio-0-event-kbd")
- output (uinput-sink "My KMonad output"
- "/usr/bin/sleep 1 && /usr/bin/setxkbmap -option compose:ralt")
- cmp-seq ralt ;; Set the compose key to `RightAlt'
- cmp-seq-delay 5 ;; 5ms delay between each compose-key sequence press
- fallthrough true
- allow-cmd true
-)
-#+end_src
-you need to set your input device according to your hardware.
-** defsrc
-The defsrc block specifies the default layout that our keyboard uses. Note that when you are,
-for example, using a 40% keyboard, some of these keys will not be present.
-However, it is still syntactically valid and you will be able to use this
-configuration.
-#+begin_src kbd :tangle config.kbd
-(defsrc
- grv 1 2 3 4 5 6 7 8 9 0 - = bspc
- tab q w e r t y u i o p [ ] \
- caps a s d f g h j k l ; ' ret
- lsft z x c v b n m , . / rsft
- lctl lmet lalt spc ralt rmet cmp rctl
-)
-#+end_src
-Also note that the defsrc block is not used for custom key configuration. It
-is used only to describe the shape of the current keyboard.
-** defalias
-defalias defines aliases for buttons. Buttons are used in deflayer blocks
-in order to remap the keys.
-#+begin_src kbd :tangle config.kbd
-(defalias
- num (layer-toggle numbers)
- kil C-A-del
-)
-#+end_src
-** deflayer
-#+begin_src kbd :tangle config.kbd
-#| --------------------------------------------------------------------------
- Necessary: at least 1 `deflayer` block
-
- It is also important to mention that the 'keymap' in KMonad is modelled as a
- stack of layers (just like in QMK). When an event is registered we look in the
- top-most layer for a handler. If we don't find one we try the next layer, and
- then the next.
-
- Exactly what 'evaluates-to-a-button' will be expanded on in more detail below.
- There are very many different specialist buttons in KMonad that we will touch
- upon. However, for now, these 4 are a good place to begin:
-
- 1. Any keycode evaluates to a button that, on press, emits the press of that
- keycode, and on release, emits the release of that keycode. Just a 'normal'
- button. The exception is '\', which gets used as an escape character. Use
- '\\' instead. Other characters that need to be escaped to match the literal
- character are '(', ')', and '_'.
-
- 2. An @-prefixed name evaluates to an alias lookup. We named two buttons in
- the `defalias` block above, we could now refer to these buttons using
- `@num` and `@kil`. This is also why we only use alias-names no longer than
- 3 characters in this tutorial. Also, note that we are already referencing
- some aliases that have not yet been defined, this is not an issue.
-
- 3. The '_' character evaluates to transparent. I.e. no handler for that
- key-event in this layer, causing this event to be handed down the layer
- stack to perhaps be handled by the next layer.
-
- 4. The 'XX' character evaluates to blocked. I.e. no action bound to that
- key-event in this layer, but do actually catch event, preventing any
- underlying layer from handling it.
-
- Finally, it is important to note that the *first* `deflayer` statement in a
- KMonad config will be the layer that is active when KMonad starts up.
-
- -------------------------------------------------------------------------- |#
-
-
-(deflayer qwerty
- grv 1 2 3 4 5 6 7 8 9 0 - = bspc
- tab q w e r t y u i o p [ ] \
- esc a s d f g h j k l ; ' ret
- lsft z x c v b n m , . / rsft
- lctl lmet lalt spc @num rmet @sym rctl
-)
-
-(deflayer numbers
- _ _ _ _ _ _ _ _ _ _ _ _ _ _
- _ _ _ _ _ XX / 7 8 9 - _ _ _
- _ _ _ _ _ XX * 4 5 6 + _ _
- _ _ \( \) . XX 0 1 2 3 _ _
- _ _ _ _ _ _ _ _
-)
-
-#+end_src
-
-#+begin_src kbd :tangle config.kbd
-#| --------------------------------------------------------------------------
- Optional: modded buttons
-
- Let's start by exploring the various special buttons that are supported by
- KMonad by looking at 'modded' buttons, that is to say, buttons that activate
- some kind of 'mod', then perform some button, and finally release that 'mod'
- again.
-
- We have already seen an example of this style of button, our `kil` button is
- one such button. Let's look at it in more detail:
- C-A-del
-
- This looks like a simple declarative statement, but it's helpful to realize
- that is simply syntactic sugar around 2 function calls. This statement is
- equivalent to:
- (around ctl (around alt del))
-
- This highlights a core design principle in KMonad: we try to provide very
- simple buttons, and then we provide rules and functions for combining them
- into new buttons. Although note: still very much a work in progress.
-
- So, looking at this statement:
- (around foo bar)
-
- Here, `around` is a function that takes two buttons and creates a new button.
- This new button will, on a press, first press foo, then press bar, and on a
- release first release bar, and then foo. Once created, this new button can be
- passed to anything in KMonad that expects a button.
-
- We have already seen other examples of modded buttons, \(, \), *, and +. There
- are no Keycodes for these buttons in KMonad, but they are buttons. They simply
- evaluate to `(around lsft x)`. All shifted numbers have their corresponding
- characters, the same is true for all capitals, and < > : ~ " | { } \_ + and ?.
-
- To wrap up 'modded-buttons', let's look back at C-A-del. We have 8 variants:
- C- : (around lctl X)
- A- : (around lalt X)
- M- : (around lmet X)
- S- : (around lsft X)
-
- Then RC-, RA-, RM-, and RS- behave exactly the same, except using the
- right-modifier.
-
- These can be combined however you please:
- C-A-M-S-x ;; Perfectly valid
- C-% ;; Perfectly valid: same as C-S-5
- C-RC-RA-A-M-S-RS-m ;; Sure, but why would you?
-
- Also, note that although we provide special syntax for certain modifiers,
- these buttons are in no way 'special' in KMonad. There is no concept of 'modifier'.
- (around a (around b c)) ;; Perfectly valid
-
- -------------------------------------------------------------------------- |#
-
-(defalias
-
- ;; Something useful
- cpy C-c
- pst C-v
- cut C-x
-
- ;; Something silly
- md1 (around a (around b c)) ;; abc
- md2 (around a (around lsft b)) ;; aB
- md3 C-A-M-S-l
- md4 (around % b) ;; BEWARE: %B, not %b, do you see why?
-)
-
-#| --------------------------------------------------------------------------
- Optional: sticky keys
-
- KMonad also support so called "sticky keys". These are keys that will
- behave as if they were pressed after just tapping them. This behaviour
- wears off after the next button is pressed, which makes them ideal for
- things like a quick control or shift. For example, tapping a sticky and
- then pressing `abc' will result in `Abc'.
-
- You can create these keys with the `sticky-key' keyword:
-
- (defalias
- slc (sticky-key 500 lctl))
-
- The number after `sticky-key' is the timeout you want, in milliseconds. If
- a key is tapped and that time has passed, it won't act like it's pressed
- down when we receive the next keypress.
-
- It is also possible to combine sticky keys. For example, to
- get a sticky shift+control you can do
-
- (defalias
- ssc (around
- (sticky-key 500 lsft)
- (sticky-key 500 lctl)))
-
- -------------------------------------------------------------------------- |#
-
-;; Let's make both shift keys sticky
-(defalias
- sl (sticky-key 300 lsft)
- sr (sticky-key 300 rsft))
-
-
-;; Now we define the 'tst' button as opening and closing a bunch of layers at
-;; the same time. If you understand why this works, you're starting to grok
-;; KMonad.
-;;
-;; Explanation: we define a bunch of testing-layers with buttons to illustrate
-;; the various options in KMonad. Each of these layers makes sure to have its
-;; buttons not overlap with the buttons from the other layers, and specifies all
-;; its other buttons as transparent. When we use the nested `around` statement,
-;; whenever we push the button linked to '@tst' (check `qwerty` layer, we bind
-;; it to `rctl`), any button we press when holding `rctl` will be pressed in the
-;; context of those 4 layers overlayed on the stack. When we release `rctl`, all
-;; these layers will be popped again.
-(defalias tst (around (layer-toggle macro-test)
- (around (layer-toggle layer-test)
- (around (layer-toggle around-next-test)
- (around (layer-toggle command-test)
- (layer-toggle modded-test))))))
-
-(deflayer modded-test
- _ _ _ _ _ _ _ _ _ _ _ _ _ _
- _ _ @md4 _ _ _ _ _ _ _ _ _ _ _
- _ _ @md1 @md2 @md3 _ _ _ _ _ _ _ _
- _ _ @cut @cpy @pst _ _ _ _ _ _ _
- _ _ _ _ _ _ _ _
-)
-
-#| --------------------------------------------------------------------------
- Optional: tap-macros
-
- Let's look at a button we haven't seen yet, tap-macros.
-
- `tap-macro` is a function that takes an arbitrary number of buttons and
- returns a new button. When this new button is pressed it rapidly taps all its
- stored buttons in quick succesion except for its last button, which it only
- presses. This last button gets released when the `tap-macro` gets released.
-
- There are two ways to define a `tap-macro`, using the `tap-macro` function
- directly, or through the #() syntactic sugar. Both evaluate to exactly the
- same button.
-
- (tap-macro K M o n a d)
- #(K M o n a d)
-
- If you are going to use a `tap-macro` to perform a sequence of actions inside
- some program you probably want to include short pauses between inputs to give
- the program time to register all the key-presses. Therefore we also provide
- the 'pause' function, which simply pauses processing for a certain amount of
- milliseconds. Pauses can be created like this:
-
- (pause 20)
- P20
-
- You can also pause between each key stroke by specifying the `:delay' keyword,
- as well as a time in ms, at the end of a `tap-macro':
-
- (tap-macro K M o n a d :delay 5)
- #(K M o n a d :delay 5)
-
- The above would be equivalent to e.g.
-
- (tap-macro K P5 M P5 o P5 n P5 a P5 d)
-
- The `tap-macro-release` is like `tap-macro`, except that it
- waits to press the last button when the `tap-macro-release`
- gets released. It might be useful when combined with a
- footswitch that sends keyboard scan codes.
-
- (tap-macro-release i K M o n a d esc)
-
- WARNING: DO NOT STORE YOUR PASSWORDS IN PLAIN TEXT OR IN YOUR KEYBOARD
-
- I know it might be tempting to store your password as a macro, but there are 2
- huge risks:
- 1. You accidentally leak your config and expose your password
- 2. Anyone who knows about the button can get clear-text representation of your
- password with any text editor, shell, or text-input field.
-
- Support for triggering shell commands directly from KMonad is described in the
- command buttons section below.
-
- This concludes this public service announcement.
-
- -------------------------------------------------------------------------- |#
-
-(defalias
- mc1 #(K M o n a d)
- mc2 #(C-c P50 A-tab P50 C-v) ;; Careful, this might do something
- mc3 #(P200 h P150 4 P100 > < P50 > < P20 0 r z 1 ! 1 ! !)
- mc4 (tap-macro a (pause 50) @md2 (pause 50) c)
- mc5 (tap-macro-release esc esc esc)
- mc6 #(@mc3 spc @mc3 spc @mc3)
-)
-
-(deflayer macro-test
- _ @mc1 @mc2 @mc3 @mc4 @mc5 @mc6 _ _ _ _ _ _ _
- _ _ _ _ _ _ _ _ _ _ _ _ _ _
- _ _ _ _ _ _ _ _ _ _ _ _ _
- _ _ _ _ _ _ _ _ _ _ _ _
- _ _ _ _ _ _ _ _
-)
-
-
-#| --------------------------------------------------------------------------
- Optional: layer manipulation
-
- You have already seen the basics of layer-manipulation. The `layer-toggle`
- button. This button adds a layer to the top of KMonad's layer stack when
- pressed, and removes it again when released. There are a number of other ways
- to manipulate the layer stack, some safer than others. Let's go through all of
- them from safest to least safe:
-
- `layer-toggle` works as described before, 2 things to note:
- 1. If you are confused or worried about pressing a key, changing layers, and
- then releasing a key and this causing issues: don't be. KMonad handles
- presses and releases in very different ways. Presses get passed directly to
- the stacked keymap as previously described. When a KMonad button has its
- press-action triggered, it then registers a callback that will catch its
- own release before we ever touch the keymap. This guarantees that the
- button triggered by the press of X *will be* the button whose release is
- triggered by the release of X (the release of X might trigger other things
- as well, but that is besides the point.)
- 2. If `layer-toggle` can only ever add and then necessarily remove 1 layer
- from the stack, then it will never cause a permanent change, and is
- perfectly safe.
-
- `layer-delay`, once pressed, temporarily switches to some layer for some
- milliseconds. Just like `layer-toggle` this will never permanently mess-up the
- layer stack. This button was initially implemented to provide some
- 'leader-key' style behavior. Although I think in the future better solutions
- will be available. For now this will temporarily add a layer to the top of the
- stack:
- (layer-delay 500 my-layer)
-
- `layer-next`, once pressed, primes KMonad to handle the next press from some
- arbitrary layer. This aims to fill the same usecase as `layer-delay`: the
- beginnings of 'leader-key' style behavior. I think this whole button will get
- deleted soon, because the more general `around-next` now exists (see below)
- and this is nothing more than:
- (around-next (layer-toggle layer-name))
- Until then though, use `layer-next` like this:
- (layer-next layer-name)
-
- `layer-switch`: change the base-layer of KMonad. As described at the top of
- this document, the first `deflayer` statement is the layer that is active when
- KMonad starts. Since `layer-toggle` can only ever add on and remove from the
- top of that, it can never change the base-layer. The following button will
- unregister the bottom-most layer of the keymap, and replace it with another
- layer.
- (layer-switch my-layer)
-
- This is where things start getting potentially dangerous (i.e. get KMonad into
- an unusuable state until a restart has occured). It is perfectly possible to
- switch into a layer that you can never get out of. Or worse, you could
- theoretically have a layer full of only `XX`s and switch into that, rendering
- your keyboard unuseable until you somehow manage to kill KMonad (without using
- your keyboard).
-
- However, when handled well, `layer-switch` is very useful, letting you switch
- between 'modes' for your keyboard. I have a tiny keyboard with a weird keymap,
- but I switch into a simple 'qwerty' keymap shifted 1 button to the right for
- gaming. Just make sure that any 'mode' you switch into has a button that
- allows you to switch back out of the 'mode' (or content yourself restarting
- KMonad somehow).
-
- `layer-add` and `layer-rem`. This is where you can very quickly cause yourself
- a big headache. Originally I didn't expose these operations, but someone
- wanted to use them, and I am not one to deny someone else a chainsaw. As the
- names might give away:
- (layer-add name) ;; Add a layer to the top of the stack
- (layer-rem name) ;; Remove a layer by name (noop if no such layer)
-
- To use `layer-add` and `layer-rem` well, you should take a moment to think
- about how to create a layout that will prevent you from getting into
- situations where you enter a key-configuration you cannot get out of again.
- These two operations together, however, are very useful for activating a
- permanent overlay for a while. This technique is illustrated in the tap-hold
- overlay a bit further down.
-
-
- -------------------------------------------------------------------------- |#
-
-(defalias
-
- yah (layer-toggle asking-for-trouble) ;; Completely safe
- nah (layer-add asking-for-trouble) ;; Completely unsafe
-
- ld1 (layer-delay 500 numbers) ;; One way to get a leader-key
- ld2 (layer-next numbers) ;; Another way to get a leader key
-
- ;; NOTE, this is safe because both `qwerty` and `colemak` contain the `@tst`
- ;; button which will get us to the `layer-test` layer, which itself contains
- ;; both `@qwe` and `@col`.
- qwe (layer-switch qwerty) ;; Set qwerty as the base layer
- col (layer-switch colemak) ;; Set colemak as the base layer
-)
-(deflayer layer-test
- @qwe _ _ _ _ _ _ _ _ _ _ @add _ @nah
- @col _ _ _ _ _ _ _ _ _ _ _ _ @yah
- _ _ _ _ _ _ _ _ _ _ _ _ _
- _ _ _ _ _ _ _ _ _ @ld1 @ld2 _
- _ _ _ _ _ _ _ _
-)
-
-;; Exactly like qwerty, but with the letters switched around
-(deflayer colemak
- grv 1 2 3 4 5 6 7 8 9 0 - = bspc
- tab q w f p g j l u y ; [ ] \
- @xcp a r s t d h n e i o ' ret
- @sl z x c v b k m , . / @sr
- lctl @num lalt spc ralt rmet @sym @tst
-)
-
-(defalias lol #(: - D))
-
-;; Contrived example
-(deflayer asking-for-trouble
- @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol
- @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol
- @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol
- @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol @lol
- @lol @lol @lol @lol @lol @lol @lol @lol
-)
-
-;; One way to safely use layer-add and layer-rem: the button bound to layer-add
-;; is the same button bound to layer-rem in the layer that `add` adds to the
-;; stack. I.e., it becomes impossible to add or remove multiple copies of a
-;; layer.
-(defalias
- add (layer-add multi-overlay) ;; multi-overlay is defined in the next
- rem (layer-rem multi-overlay) ;; section below this
- )
-
-#| --------------------------------------------------------------------------
- Optional: Multi-use buttons
-
- Perhaps one of the most useful features of KMonad, where a lot of work has
- gone into, but also an area with many buttons that are ever so slightly
- different. The naming and structuring of these buttons might change sometime
- soon, but for now, this is what there is.
-
- For the next section being able to talk about examples is going to be handy,
- so consider the following scenario and mini-language that will be the same
- between scenarios.
- - We have some button `foo` that will be different between scenarios
- - `foo` is bound to 'Esc' on the input keyboard
- - the letters a s d f are bound to themselves
- - Px signifies the press of button x on the keyboard
- - Rx signifies the release of said button
- - Tx signifies the sequential and near instantaneous press and release of x
- - 100 signifies 100ms pass
-
- So for example:
- Tesc Ta:
- tap of 'Esc' (triggering `foo`), tap of 'a' triggering `a`
- Pesc 100 Ta Tb Resc:
- press of 'Esc', 100ms pause, tap of 'a', tap of 'b', release of 'Esc'
-
- The `tap-next` button takes 2 buttons, one for tapping, one for holding, and
- combines them into a single button. When pressed, if the next event is its own
- release, we tap the 'tapping' button. In all other cases we first press the
- 'holding' button then we handle the event. Then when the `tap-next` gets
- released, we release the 'holding' button.
-
- So, using our mini-language, we set foo to:
- (tap-next x lsft)
- Then:
- Tesc -> x
- Tesc Ta -> xa
- Pesc Ta Resc -> A
- Pesc Ta Tr Resc -> AR
-
- The `tap-hold` button is very similar to `tap-next` (a theme, trust me). The
- difference lies in how the decision is made whether to tap or hold. A
- `tap-hold` waits for a particular timeout, if the `tap-hold` is released
- anywhere before that moment we execute a tap immediately. If the timeout
- occurs and the `tap-hold` is still held, we switch to holding mode.
-
- The additional feature of a `tap-hold` is that it pauses event-processing
- until it makes its decision and then rolls back processing when the decision
- has been made.
-
- So, again with the mini-language, we set foo to:
- (tap-hold 200 x lsft) ;; Like tap-next, but with a 200ms timeout
- Then:
- Tesc -> x
- Tesc Ta -> xa
- Pesc 300 a -> A (the moment you press a)
- Pesc a 300 -> A (after 200 ms)
- Pesc a 100 Resc -> xa (both happening immediately on Resc)
-
- The `tap-hold-next` button is a combination of the previous 2. Essentially,
- think of it as a `tap-next` button, but it also switches to held after a
- period of time. This is useful, because if you have a (tap-next ret ctl) for
- example, and you press it thinking you want to press C-v, but then you change
- your mind, you now cannot release the button without triggering a 'ret', that
- you then have to backspace. With the `tap-hold-next` button, you simply
- outwait the delay, and you're good. I see no benefit of `tap-next` over
- `tap-hold-next` with a decent timeout value.
-
- You can use the `:timeout-button` keyword to specify a button other than the
- hold button which should be held when the timeout expires. For example, we
- can construct a button which types one x when tapped, multiple x's when held,
- and yet still acts as shift when another button is pressed before the timeout
- expires. So, using the minilanguage and foo as:
- (tap-hold-next 200 x lsft :timeout-button x)
- Then:
- Tesc -> Tx
- Pesc 100 a -> A (the moment you press a)
- Pesc 5000 Resc -> xxxxxxx (some number of auto-repeated x's)
-
- Note that KMonad does not itself auto-repeat the key. In this last example,
- KMonad emits 200 Px 4800 Rx, and the operating system's auto-repeat feature,
- if any, emits multiple x's because it sees that the x key is held for 4800 ms.
-
- The `tap-next-release` is like `tap-next`, except it decides whether to tap or
- hold based on the next release of a key that was *not* pressed before us. This
- also performs rollback like `tap-hold`. So, using the minilanguage and foo as:
- (tap-next-release x lsft)
- Then:
- Tesc Ta -> xa
- Pa Pesc Ra Resc -> ax (because 'a' was already pressed when we started, so
- foo decides it is tapping)
- Pesc Pa Resc Ra -> xa (because the first release we encounter is of esc)
- Pesc Ta Resc -> A (because a was pressed *and* released after we started,
- so foo decides it is holding)
-
- `tap-next-press` is also a lot like `tap-next`, but decides whether to tap or
- hold based on whether another key is pressed before this one is released.
- Using the minilanguage:
- (tap-next-press x lsft)
- Then:
- Tesc Ta -> xa
- Pa Pesc Ra Resc -> ax (because esc is released before another key is pressed)
- Pesc Pa Resc Ra -> A (because a is pressed before esc is released)
- Pesc Ta Resc -> A (a is pressed before esc is released here as well)
-
- These increasingly stranger buttons are, I think, coming from the stubborn
- drive of some of my more eccentric (and I mean that in the most positive way)
- users to make typing with modifiers on the home-row more comfortable.
- Especially layouts that encourage a lot of rolling motions are nicer to use
- with the `release` style buttons.
-
- The `tap-hold-next-release` (notice a trend?) is just like `tap-next-release`,
- but it comes with an additional timeout that, just like `tap-hold-next` will
- jump into holding-mode after a timeout.
-
- I honestly think that `tap-hold-next-release`, although it seems the most
- complicated, probably is the most comfortable to use. But I've put all of them
- in a testing layer down below, so give them a go and see what is nice.
-
- -------------------------------------------------------------------------- |#
-
-
-(defalias
- xtn (tap-next x lsft) ;; Shift that does 'x' on tap
- xth (tap-hold 400 x lsft) ;; Long delay for easier testing
- thn (tap-hold-next 400 x lsft)
- tnr (tap-next-release x lsft)
- tnp (tap-next-press x lsft)
- tnh (tap-hold-next-release 2000 x lsft)
-
- ;; Used it the colemak layer
- xcp (tap-hold-next 400 esc ctl)
-)
-
-;; Some of the buttons used here are defined in the next section
-(deflayer multi-overlay
- @mt _ _ _ _ _ _ _ _ _ _ _ @rem _
- _ _ _ _ _ _ _ _ _ _ _ _ _ _
- @thn _ _ _ _ _ _ _ _ _ _ _ _
- @xtn _ _ _ _ _ _ _ _ _ _ @xth
- @tnr @tnp _ _ _ _ _ @tnh
-)
-
-
-#| --------------------------------------------------------------------------
- Optional: Multi-tap
-
- Besides the tap-hold style buttons there is another multi-use button (with.
- only 1 variant, at the moment). The `multi-tap`.
-
- A `multi-tap` codes for different buttons depending on how often it is tapped.
- It is defined by a series of delays and buttons, followed by a last button
- without delay. As long as you tap the `multi-tap` within the delay specified,
- it will jump to the next button. Once the delay is exceeded the selected
- button is pressed. If the last button in the list is reached, it is
- immediately pressed. When another key is pressed down while we're tapping,
- `multi-tap' also immediately exits and taps the current button.
-
- Note that you can actually hold the button, so in the below example, going:
- tap-tap-hold (wait 300ms) will get you a pressed c, until you release again.
-
- -------------------------------------------------------------------------- |#
-
-(defalias
- mt (multi-tap 300 a 300 b 300 c 300 d e))
-
-
-#| --------------------------------------------------------------------------
- Optional: Around-next
-
- The `around-next` function creates a button that primes KMonad to perform the
- next button-press inside some context. This could be the context of 'having
- Shift pressed' or 'being inside some layer' or, less usefully, 'having d
- pressed'. It is a more general and powerful version of `layer-next`.
-
- There is also an `around-next-timeout` button that does the same thing as
- `around-next`, except that if some other button press is not detected within
- some timeout, some other button is tapped. This can be used to create a
- leader-key that simply times out (by passing a non-button), or a key that can
- still function as a normal key, but also as a leader key when used slowly.
-
- I think expansion of this button-style is probably the future of leader-key,
- hydra-style functionality support in KMonad.
-
- -------------------------------------------------------------------------- |#
-
-(defalias
- ns (around-next sft) ;; Shift the next press
- nnm (around-next @num) ;; Perform next press in numbers layer
- ntm (around-next-timeout 500 sft XX)
-
-
-)
-
-(deflayer around-next-test
- _ _ _ _ _ _ _ _ _ _ _ _ _ _
- _ _ _ _ _ _ _ _ _ _ _ _ _ _
- @ns _ _ _ _ _ _ _ _ _ _ _ _
- @nnm _ _ _ _ _ _ _ _ _ _ _
- @ntm _ _ _ _ _ _ _
-)
-
-#| --------------------------------------------------------------------------
- Optional: Compose-key sequences
-
- Compose-key sequences are series of button-presses that your operating system
- will interpret as the insertion of a special character, like accented
- characters, or various special-languages. In that sense, they are just
- syntactic sugar for keyboard macros.
-
- To get this to work on Linux you will need to set your compose-key with a tool
- like `setxkbmap', as well as tell kmonad that information. See the `defcfg'
- block at the top of this file for a working example. Note that you need to
- wait ever so slightly for the keyboard to register with linux before the
- command gets executed, that's why the `sleep 1`. Also, note that all the
- `/run/current-system' stuff is because the author uses NixOS. Just find a
- shell-command that will:
-
- 1. Sleep a moment
- 2. Set the compose-key to your desired key
-
- Please be aware that what `setxkbmap' calls the `menu' key is not actually the
- `menu' key! If you want to use the often suggested
-
- setxkbmap -option compose:menu
-
- you will have to set your compose key within kmonad to `compose' and not
- `menu'.
-
- After this, this should work out of the box under Linux. Windows does not
- recognize the same compose-key sequences, but WinCompose will make most of the
- sequences line up with KMonad: http://wincompose.info/
- This has not in any way been tested on Mac.
-
- In addition to hard-coded symbols, we also provide 'uncompleted' macros. Since
- a compose-key sequence is literally just a series of keystrokes, we can omit
- the last one, and enter the sequence for 'add an umlaut' and let the user then
- press some letter to add this umlaut to. These are created using the `+"`
- syntax.
-
- -------------------------------------------------------------------------- |#
-
-(defalias
- sym (layer-toggle symbols)
-
-)
-
-(deflayer symbols
- _ _ _ _ _ _ _ _ _ _ _ _ _ _
- _ ä é © _ _ _ _ _ _ _ _ _ _
- _ +' +~ +` +^ _ _ _ _ _ _ _ _
- _ +" +, _ _ _ _ _ _ _ _ _
- _ _ _ _ _ _ _ _)
-
-
-#| --------------------------------------------------------------------------
- Optional: Command buttons
-
- Currently we also provide the ability to launch arbitrary shell-commands from
- inside kmonad. These commands are simply handed off to the command-shell
- without any further checking or waiting.
-
- NOTE: currently only tested on Linux, but should work on any platform, as long
- as the command is valid for that platform.
-
- The `cmd-button' function takes two arguments, the second one of which is
- optional. These represent the commands to be executed on pressing and
- releasing the button respectively.
-
- BEWARE: never run anyone's configuration without looking at it. You wouldn't
- want to push:
-
- (cmd-button "rm -rf ~/*") ;; Delete all this user's data
-
-
- -------------------------------------------------------------------------- |#
-#+end_src