在emacs中删除完成小缓冲区中的额外消息

Question

当我输入emacs shell和选项卡以完成时，将显示一个完成微型缓冲区，并列出如下所示的可能完成情况：

Click <mouse-2> on a completion to select it.
In this buffer, type RET to select the completion near point.

Possible completions are:
CLUTTER_IM_MODULE   DBUS_SESSION_BUS_ADDRESS    DEFAULTS_PATH

通过设置(setq completion-show-help nil)，我能够删除前两行。但是有可能摆脱possible completions are:吗？我只想要一点清洁。

Answer 1

围绕不可自定义的消息，一个简单的黑客就是在display-completion-list运行后将该行从输出缓冲区中删除(假设您已经将completion-show-help设置为nil)，

(define-advice display-completion-list (:after (&rest r) "remove-msg")
  (with-current-buffer standard-output
    (goto-char (point-min))
    (when (looking-at-p "Possible completions.*")
      (delete-region (line-beginning-position) (line-beginning-position 2)))))