如何在 emacs 中编写键绑定以方便重复? [英] How to write a key bindings in emacs for easy repeat?

问题描述

假设我将密钥绑定到某个函数，如下所示:

Let's say I bind the key to a certain function as follows:

(global-set-key (kbd "C-c =") 'function-foo)

现在，我希望键绑定可以作为:
我第一次按Cc =后，如果我想重复函数-foo，我不需要再次按Cc，只需重复按=.然后，在调用函数 foo 足够多的次数后，我只需按 = 以外的键(或明确按 C-g)即可退出.

Now, I want the key binding to work as:
After I press C-c = for the first time, if I want to repeat the function-foo, I don't need to press C-c again, but simply repeat pressing =. Then, after I call the function-foo for enough times, I can just press keys other than = (or explicitly press C-g) to quit.

如何做到这一点?

推荐答案

这可能就是您要找的东西:

This may be the thing you are looking for:

(defun function-foo ()
  (interactive)
  (do-your-thing)
  (set-temporary-overlay-map
    (let ((map (make-sparse-keymap)))
      (define-key map (kbd "=") 'function-foo)
      map)))

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