How to set Compose key?

[TheWhiteFangedOne]

I am unsure how to set a Compose key like I could in Sway, using xkb_options. Using setxkbmap simply returned an error about running xkb against Xwayland.

[vaxerski]

isn't compose just a mod? you can see that in wev

[xlassmgreat]

Of course, a wayland version of xev. I don't know why I didn't really but, okay. What exactly am I supposed to do with wev? What am I looking for? So you mean the compose key is a mod key, but what if I'd need to change that to something else?

[vaxerski]

when you press a mod, you'll get a mod event with its name:

[14:     wl_keyboard] modifiers: serial: 0; group: 0
                      depressed: 00000040: Mod4 
                      latched: 00000000
                      locked: 00000000

if you want to remap it to something, you have the kb_ variables in the hyprland config to input your xkb layouts options and stuff. Hyprland should not have to deal with remapping and stuff.

[xlassmgreat]

I don't understand where you're going with this. I'm not trying to remap anything to anything. I'm trying to set the compose key, how would I approach it? Normally, I'd expect setting kb_options = "compose:rctrl" would set the compose key to the right control key. How does this work?

Edit: It's been more than a year, and I ought to have mentioned it sooner. But I'll say it now: my mistake was using double quotes. Silly as that.

[prskr]

at least for me it works actually more or less exactly like you're describing it:

input {
    kb_layout = us
    kb_variant =
    kb_model =
    kb_options = grp:alt_shift_toggle, compose:menu
}

works perfectly so use the menu key as compose key

[Schievel1]

at least for me it works actually more or less exactly like you're describing it:

input {
    kb_layout = us
    kb_variant =
    kb_model =
    kb_options = grp:alt_shift_toggle, compose:menu
}

works perfectly so use the menu key as compose key

Thanks. This works for ralt, but not for lalt or lsuper for some reason. I would like to bind it to 'page up'. What would be the right keycode for that? It's not 'pgup' it seems.

[Kantariia]

Sorry, bro. I am from Ukraine. Now i at the war. I can't open my code. So i am So sorry. вс, 8 янв. 2023 г., 07:15 xlassmgreat ***@***.***>:

…

What wev? Please explain. — Reply to this email directly, view it on GitHub <#1224 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AW7L2FIP7QBFM45MPBF3CZ3WRJENTANCNFSM6AAAAAAS45GPLE> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[linkert]

This works wonders for me :)

set {
  $keyboard_layout  se,se
  $keyboard_model   pc105
  $keyboard_options grp:alt_space_toggle,compose:rctrl
  $keyboard_variant us,
}

input * {
  xkb_layout  $keyboard_layout
  xkb_variant $keyboard_variant
  xkb_options $keyboard_options
  xkb_model   $keyboard_model
}

[wideaperture]

I anyone's still looking for an answer as to how to set the compose key (not the compose menu), I happened across it here. Setting the compose key to the right alt key can be done like so in hyprland.conf:

input {
    # ...
    kb_options = compose:ralt
    # ...
}

[Schievel1]

Still, how do you actually get those keycodes? wev gives this when pressing left alt key:

[14:     wl_keyboard] key: serial: 8137; time: 4871790; key: 64; state: 1 (pressed)
                      sym: Alt_L        (65513), utf8: ''
[14:     wl_keyboard] modifiers: serial: 0; group: 0
                      depressed: 00000008: Mod1
                      latched: 00000000
                      locked: 00000000
[14:     wl_keyboard] key: serial: 8139; time: 4872257; key: 64; state: 0 (released)
                      sym: Alt_L        (65513), utf8: ''
[14:     wl_keyboard] modifiers: serial: 0; group: 0
                      depressed: 00000000
                      latched: 00000000
                      locked: 00000000

In what way does that help in guessing what the right thing is to put after compose:?

For right alt its ralt, but for left alt it is not lalt apparently. ralt works for me, so does caps. But not pageup

Edit: To answer that question:
The allowed configurations are found in a file:

guru/app-editors/emacs-lsp-booster on  dev [$] ➜ grep "compose:" /usr/share/X11/xkb/rules/base.lst   took 11m48s
  compose:ralt         Right Alt
  compose:lwin         Left Win
  compose:lwin-altgr   3rd level of Left Win
  compose:rwin         Right Win
  compose:rwin-altgr   3rd level of Right Win
  compose:menu         Menu
  compose:menu-altgr   3rd level of Menu
  compose:lctrl        Left Ctrl
  compose:lctrl-altgr  3rd level of Left Ctrl
  compose:rctrl        Right Ctrl
  compose:rctrl-altgr  3rd level of Right Ctrl
  compose:caps         Caps Lock
  compose:caps-altgr   3rd level of Caps Lock
  compose:102          The "< >" key
  compose:102-altgr    3rd level of the "< >" key
  compose:paus         Pause
  compose:ins          Insert
  compose:prsc         PrtSc
  compose:sclk         Scroll Lock

[opennomad]

One thing that caught me is that I tried to add the kb_options twice. Once for swapping caps and escape and again for mapping the compose. The right way to do it is to put them on the same line and separate them with a comma, as follows:

kb_options = caps:swapescape,compose:rctrl

That makes it so I can press the right control to activate compose and type things like ä (compose + " + a) and ⁰ (compose + ^ + 0) and ñ (compose + ~ + n) etc pressing one key at a time.