[英]emacs - set shortcut key only in major mode?
I would like to override Cl
and use it to do Mx erase-buffer
followed by simulating hitting RET
, only when I am in m-shell-mode
. 我想覆盖
Cl
并使用它做Mx erase-buffer
然后仅当我处于m-shell-mode
时,模拟RET
击中。 Cl
should be its default, recenter-top-bottom
, otherwise. Cl
应该是默认值,否则为recenter-top-bottom
。 How do I do so? 我该怎么做?
Not sure what m-shell-mode
is, but if it's a well-defined major mode , then the following should do the trick: 不知道什么是
m-shell-mode
,但是如果它是定义明确的主模式 ,那么以下方法可以解决问题:
(require 'm-shell-mode)
(define-key m-shell-mode-map (kbd "C-l") 'erase-buffer)
Might I suggest an alternative binding, which has the same visual effect, but keeps the buffer contents around (which can be handy). 可能我建议使用替代绑定,该绑定具有相同的视觉效果,但保留缓冲区内容(可能很方便)。
(defun shell-clear-command (&optional a)
"\"clear\" the screen"
(interactive "P")
(recenter (or a 0)))
(define-key m-shell-mode-map (kbd "C-l") 'shell-clear-command)
If m-shell-mode
is based on comint-mode
, which is true of many modes that provide a shell to interact with another process, then you can pass the return
keypress to matlab with the function comint-send-input
. 如果
m-shell-mode
是基于comint-mode
,这是许多模式,提供一个外壳来与另一个进程交互的真实,那么你可以通过return
按键与功能的MATLAB的comint-send-input
。 In that case the following code should do what you want: 在这种情况下,以下代码应按您的要求执行:
(defun clear-and-return ()
"Erases the buffer, and then passes a return to the buffer process.
Assumes the buffer is attached to a comint process."
(interactive)
(erase-buffer)
(comint-send-input))
(defun my-m-shell-mode-hook ()
(local-set-key (kbd "C-l") 'clear-and-return))
(add-hook 'm-shell-mode-hook 'my-m-shell-mode-hook)
The first defun makes a function that does what you want. 第一个defun会执行您想要的功能。 The second is a hook function that will bind
Cl
to that function for the buffer that is active when the function is called. 第二个是钩子函数,该钩子函数会将
Cl
绑定到该函数,以使该函数在调用该函数时处于活动状态。 The add-hook
tells emacs to run the second function whenever you start m-shell-mode
. 每当您启动
m-shell-mode
时, add-hook
告诉emacs运行第二个功能。 You can add further m-shell-mode customizations inside the body of my-m-shell-mode
, and Emacs will run all of them each time you start the mode. 您可以在
my-m-shell-mode
主体中添加其他m-shell-mode定制,并且每次启动模式时Emacs都会运行所有定制。
If m-shell-mode
is not based on comint-mode
, you need to find out what happens when you press return
. 如果
m-shell-mode
不是基于comint-mode
,则需要找出在按return
时会发生什么。 From a buffer that is running the mode, type Ch k RET
to find the function bound to the return key. 从运行该模式的缓冲区中,键入
Ch k RET
以查找绑定到返回键的函数。 Use that function instead of comint-send-input
in the code above. 使用该函数代替上面的代码中的
comint-send-input
。
您可以将以下代码添加到m-shell-mode
挂钩:
(local-set-key (kbd "C-l") 'erase-buffer)
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