Mouse copy looks not work

[x2c3z4]

Select texts with mouse, and Command-C to copy, nothing is copied.

[adoyle-h]

I think it is not a usual cases in vim. And I tried <D-c> and <cmd>c, neither works. The ⌘ key does not trigger.

Reason

<⌘-...> shortcuts never send key sequences to vim and nvim. Because these shortcuts are OS-level or App-level.
For example, I use iTerm2 as a pseudo terminal. The <⌘-c> is captured by iTerm2.

Also see neovim/neovim#14181

Solution

Do not create keymaps with ⌘. You can use <leader>y to copy current line into system clipboard. And <leader>P to paste from system clipboard. Please see the keymaps.md#Copy and Paste.

[x2c3z4]

I don't create keymaps with ⌘, and I also use iTerm2 to ssh to remote server, <leader> y works well, so this solution is acceptable.

Millions of thanks.