Support for special character input

[lboklin]

A must-have for any use case. Right now alphanumeric characters work along with modifier keys, but special characters (such as ~) do not.

[lboklin]

After taking some time looking at this it seems to me that the issue is that we're attempting to translate Godot's high-level key codes into evdev's lower-level event codes, which apparently does not cover non-hardware keys, ie. symbols produced via modifier keys (at least that's the only pattern I've been able to discern).

We're going to have to find a way to pass non-hardware key codes or characters into our compositor.

[georgewsinger]

Vim Test. I found the following issues when testing keys with vim (inside a weston-terminal):

1. Symbols that don't work.
   • ~
   • KP_0, …, KP_9
   • KP_PERIOD
   • [
   • ]
   • {
   • }
   • /
   • | (but \ does work)
   • : (but ; does work)
   • " (but ' does work)
2. Symbols that not only don't work but exhibit weird behavior when pressed.
   • #
   • ?
   • $
   • < (but , does work)
   • > (but . does work)
3. Symbols that I'm not sure about.
   • Alt + *

Everything else seems to work (including, for example, Ctrl + * combos and the remaining KP_* combinations).

[lboklin]

Fixed in fa56e8f