TIL: Turning off capslock when esc is pressed

system/turning-off-capslock-when-esc-is-pressed.md

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+When my Ctrl key broken, I remapped Capslock to Ctrl as it was the most useless key on the keyboard. Its position was great and suddenly all the shortcuts involving Ctrl become much more easier. Then I forget about Capslock and map it to Ctrl even if both keys are functioning. Recently I made some custom keyboards for myself and I thought maybe I can bring back Capslock. Currently, my right shift key acts as Capslock if tapped once or Shift if being hold. This is great
+
+I am a vim user and I don't use Capslock other than typing some constant variable names or SQL syntax etc. They are all happening in vim, specifically, in insert mode. Whenever I switch to normal mode, I want my Capslock to be off. I sometimes forget and instead of moving down with `j`, I find myself `J`oining lines. This happened more than 3 times so it is time to do something. 
+
+I could solve this problem in keyboard level because I have a programmable keyboard. I didn't want to this because sometimes I use my laptop's keyboard and I don't want them to behave differently. So I solved it on OS level. Here are the commands that I run in order to achieve this effect:
+```
+mkdir -p ~/.xkb/keymap/
+mkdir -p ~/.xkb/symbols/
+vim ~/.xkb/symbols/mysymbols
+
+partial modifier_keys
+xkb_symbols "esc_breaks_caps" {
+    key <ESC> {
+        type = "ALPHABETIC",
+        actions [Group1] = [
+            SetMods(modifiers=none),
+            SetMods(modifiers=Lock,clearLocks)
+        ]
+    };
+};
+
+setxkbmap -print > ~/.xkb/keymap/mykbd
+vim ~/.xkb/keymap/mykbd
+# and add +mysymbols(esc_breaks_caps) to xkb_symbols
+
+xkbcomp -I$HOME/.xkb ~/.xkb/keymap/mykbd $DISPLAY
+```