A nuisance: typing in Polish diacritics doesn't work.

To reproduce:
1. In System Preferences > Keyboard > Input Sources set layout to Polish Pro(grammer's).
2. In a text field (e.g. Executable) type Alt+N.
In any other editor Alt+N produces 'ń' but nothing happens in c[ode]clap.

Other diacritics: Alt+(A, C, E, L, N, O, S, X, Z) -> ą, ć, ę, ł, ń, ó, ś, ź, ż.

Other problems:

• Pasting text containing diacritics also doesn't work (the diacritics are skipped, the text field acts funny afterwards: can't get to the end of the text)
• Text navigation is very limited; the following system-wide shortcuts don't work:
  
  • Alt + Arrow Left/Right should skip words.
  • Alt + Arrow Up/Down should go to line up/down with the cursor on the beginning/end of a line.
  • Cmd + Arrow Left/Right should go to home/end of a line.
  • Cmd + Arrow Up/Down should go to home/end of a view or a text field.
  • Fn + Arrow Up/Down should be the equivalent of Page Up/Down.
• The default Keybindings for some functions include Ctrl + Arrows which macOS reserves for Mission Control.

Observed on macOS 10.15.1, c[ode]clap 0.9.1.

Note: On Mac both Alt keys are used to input diacritics, on Windows and Linux only the right one (Alt Gr).

Thanks for reporting this. The behavior is kind of expected because there isn't any code to actually handle this. But it is understandable that you probably need this for paths and file names. All these issues should be small enough to get them fixed in the next update.