How do I disable some interferring xterm keybinds?
TL:DR : I just want xterm to not do anything special when I start typing ctrl+shift+u so I can write special character, so I must remove the ctrl+u default keybind.
I'm using xterm on a laptop (no discrete gpu and pretty bad integrated graphics, so gpu-accelerated ones like kitty are counterproductive, and I use i3 so an xorg based one sounds better). I also like using vim.
I'm also using a qwerty keyboard, but sometimes write in French and need accents.
I've memorized the codes for those I often need, like ctrl+maj+u+e+9 for é, but it doesn't work in xterm because it executes the ctrl+u keybind (delete previous characters and then types "(" (because it's maj+9).
So, following online guides, I've created a .Xresource file with the following code:
Um, if your primary use is typing accented letters, why don't you just set a compose key? The character sequences you need to type are much more intuitive, and you don't get this type of problem.
In my case, I have scroll lock (the most useless key on the keyboard) set as a compose key. To get "é", I type scroll lock, then e, then '.
You can set a compose key using setxkbmap, for instance setxkbmap -option compose:sclk. (If scroll lock isn't to your liking, there are a number of other modifier keys that can be used instead—list here, starting around line 810.) You can also specify it permanently using X configuration files, although I don't know the exact method.