使用 xcape 和 xkb 將普通鍵作為修飾符

為了在適當的情況下Spacebar行事Ctrl，目前的 GitHub 頁面xcape說明如下：

# Map an unused modifier's keysym to the spacebar's keycode and make it a
# control modifier. It needs to be an existing key so that emacs won't
# spazz out when you press it. Hyper_L is a good candidate.
spare_modifier="Hyper_L"
xmodmap -e "keycode 65 = $spare_modifier"
xmodmap -e "remove mod4 = $spare_modifier" # hyper_l is mod4 by default
xmodmap -e "add Control = $spare_modifier"

# Map space to an unused keycode (to keep it around for xcape to
# use).
xmodmap -e "keycode any = space"

# Finally use xcape to cause the space bar to generate a space when tapped.
xcape -e "$spare_modifier=space"

如何用xkb而不是實現這一點xmodmap？

Hyper_R代替，它Hyper_L是這樣的：

內容~/.config/xkb/keycodes/my-keycodes：

xkb_keycodes "xcape-special" {
   <HYPR> =  65;
   <SPCE> = 207;
};

注意：是我機器上傳入的鍵碼表中207（虛擬）鍵的預設鍵碼。Hyper_R

內容~/.config/xkb/symbols/my-symbols：

xkb_symbols "xcape-special" {
   key <HYPR>  { [ Hyper_R ] };
   modifier_map Control { <HYPR> };
};

摘自~/.xinitrc：

XKB_DIR="$HOME/.config/xkb"
XKB_SYMBOL_FILE="my-symbols"
XKB_KEYCODE_FILE="my-keycodes"

setxkbmap -layout "us+$XKB_SYMBOL_FILE(xcape-special)" \
   -keycodes "evdev+$XKB_KEYCODE_FILE(xcape-special)" \
   -option "" -print \
   | xkbcomp -I"$XKB_DIR" - "${DISPLAY%%.*}" >/dev/null 2>&1

xcape -e "Hyper_R=space"

這不是配置的唯一方法xkb。配置可能通過單個xkbcomp呼叫從單個文件載入。的子目錄~/.config/xkb/僅遵循/usr/share/X11/xkb/. 該... -print | xkbcomp ...部分有些複雜但靈活。目前我無法嘗試更簡單的設置。

引用自：https://unix.stackexchange.com/questions/326904