Emacs命令在光标上方插入和缩进行-Emacscommandtoinsertandindentlineabovecursor

Here's my humble solution:

这是我谦虚的解决方案:

(defun insert-before-line ()
  (interactive)
  (let ((pos (point))
        (cur-max (point-max)))
    (beginning-of-line)
    ; I've changed the order of (yank) and (indent-according-to-mode)
    ; in order to handle the case when yanked line comes with its own indent
    (yank)(indent-according-to-mode)
    ; could be as well changed to simple (newline) it's metter of taste
    ; and of usage
    (newline-and-indent) 
    (goto-char (+ pos (- (point-max) cur-max)))))

Hope it helps.

希望能帮助到你。

Here's what you can do if you are not a Zen master emacs dude.

如果你不是禅宗大师emacs老兄,你可以做的就是这些。

Emacs has a record-macro thing, kmacro-start-macro and kmacro-end-macro.

Emacs有一个记录宏的东西,kmacro-start-macro和kmacro-end-macro。

After recording your macro, do name-last-kbd-macro. then visit .emacs, and do insert-kbd-macro.

录制宏后,执行name-last-kbd-macro。然后访问.emacs,并执行insert-kbd-macro。

You then have an fset statement that defines your macro. It may look funny, and it is not as maintainable as elisp, but if you stuff it into your .emacs, that macro (by that name) will be available to any of your editing sessions. And you can bind it to a key sequence as well.

然后,您有一个定义宏的fset语句。它可能看起来很有趣,并且它不像elisp那样可维护,但是如果你将它填入你的.emacs中,那个宏(通过那个名字)将可用于你的任何编辑会话。您也可以将它绑定到键序列。

Probably bad form to answer my own question, but Cheeso's answer motivated me to do some lisp programming for the second time in ten years (my original version was a named keyboard macro, but it stepped all over the kill/mark-rings). Here's what I came up with

回答我自己的问题可能是糟糕的形式,但Cheeso的回答促使我在十年内第二次做一些lisp编程(我的原始版本是一个命名的键盘宏,但它遍布了kill / mark-rings)。这就是我想出的

(defun insert-and-indent-line-above ()
  (interactive)
  (push-mark)
  (let* 
    ((ipt (progn (back-to-indentation) (point)))
     (bol (progn (move-beginning-of-line 1) (point)))
     (indent (buffer-substring bol ipt)))
    (newline)
    (previous-line)
    (insert indent)))

(global-set-key [ (control return) ] 'insert-and-indent-line-above)

there are probably many better ways of doing this, but two hours of lisp-hacking can hardly be called wasted time :-)

可能有很多更好的方法可以做到这一点,但两个小时的lisp-hacking几乎不能称为浪费时间:-)

Just hold your thought on the variable declaration, finish typing your statement, then type RET (though C-j is usually more DWIM) and type your next line for the variable declaration, then hit C-x C-t to transpose the lines.

只需按住你对变量声明的想法,完成键入你的语句,然后键入RET(虽然C-j通常更多是DWIM)并键入你的下一行变量声明,然后点击C-x C-t来转置行。