Emacs中有（重复 - 最后命令）吗？ [英] Is there a (repeat-last-command) in Emacs?

问题描述

通常，我已经挖掘到apropos和docs寻找类似于以下的东西，只能放弃回到手头的任务：

（repeat-最后一个命令）

执行刚刚执行的最后一个C-或M-命令（要反弹到一个fn键）

或有时相关：

（describe-last-function）

什么键击我只是错误地发布，我想添加到我的包中的效果。描述键很近，但需要知道我输入的内容。

我只是从我的信任伙伴那里询问太多了。

解决方案

关于' describe-last-function '：

有一个变量 last-command 它被设置为代表最后一件事的符号。所以这个elisp片段 - （describe-function last-command） - 应该提出立即发生的事情的文档。

所以你可以做一个微不足道的工作 describe-last-function 像这样

 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 
 $ $ p> 
 
 
将该elisp放在 .emacs 或等效项中，您将有一个 Mx describe-last-功能。
 
 
 
如果你从几个关键字上敲了一下，或者做了一些修改last-command的内容，那就是你感兴趣的东西，命令历史函数可能会引起关注。您可以通过 M-x命令历史 
 
获得
Frequently, I've dug into apropos and docs looking for something like the following only to give up to get back to the task at hand:

(repeat-last-command)

do the last C- or M- command I just executed (to be rebound to a fn key)

or sometimes the related: 

(describe-last-function)

what keystroke did I just mistakenly issue, the effect of which I'd like to add to my bag of tricks. describe-key is close, but requires knowing what I typed. 

Am I simply asking too much from my trusty sidekick?
解决方案
with regards to 'describe-last-function':

There's a variable last-command which is set to a symbol representative of the last thing you did. So this elisp snippet - (describe-function last-command) - ought to bring up the documentation for the thing that immediately happened.

So you could make a trivial working describe-last-function like so
(defun describe-last-function() 
  (interactive) 
  (describe-function last-command))
Put that elisp in .emacs or equivalent, and you'll have a M-x describe-last-function.

If you've banged on a few keys or done something that modified last-command since the thing you're interested in, the command-history function might be of interest. You can get that by M-x command-history

                        
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