ivy-backward-delete-char can't delete into pre-existing path in counsel-find-file?

[AmaiKinono]

I saw on a forum that someone wants to use C-a C-k to kill the whole path when using counsel-find-file, but C-a won't go into the pre-existing default-directory.

Since I can press DEL (backspace) to delete it, I think a better way is to create a command that runs ivy-backward-delete-char until an error happen, and bind it to a key under counsel-find-file-map. So I did this:

(defun clear-counsel-find-file-path ()
  (interactive)
  (condition-case nil
      (while t
        (ivy-backward-delete-char))
    (error nil)))

(define-key counsel-find-file-map "C-u" 'clear-counsel-find-file-path)

But this doesn't work. Further experiments show that if I bind ivy-backward-delete-char to some key, it won't delete into the pre-existing path, but pressing DEL will. I wonder why this happens?

Update: Typing ~ or // will clear the input, but he is on a Windows machine. I don't know if you can type something like C:/ to clear the input.

[CeleritasCelery]

Typing ~ or // will clear the input, but he is on a Windows machine. I don't know if you can type something like C:/ to clear the input.

That's the recommended approach.

[basil-conto]

I think this can be closed as a duplicate of #883 or one of its linked issues.

[abo-abo]

C-M-y can be used. So I think we can close this.