如何在Emacs中复制整行?
我看到了,这是我自己想知道如何为Emacs做的事情。在ReSharper中,我使用CTRL-D进行此操作。在Emacs中执行此操作的最少命令数是多少?因为我不知道,我将以慢球开始这轮高尔夫: ctrl-k,y,yctrl-k,ctrl-k,(定位到新位置)ctrl-y如何在Emacs中复制整行?,emacs,text,editor,editing,command,Emacs,Text,Editor,Editing,Command,我看到了,这是我自己想知道如何为Emacs做的事情。在ReSharper中,我使用CTRL-D进行此操作。在Emacs中执行此操作的最少命令数是多少?因为我不知道,我将以慢球开始这轮高尔夫: ctrl-k,y,yctrl-k,ctrl-k,(定位到新位置)ctrl-y 如果不是从行首开始,请添加ctrl-a。第二个ctrl-k是获取换行符。如果您只需要文本,可以将其删除。将光标放在行上,如果不是在开始时按CTRL-a键,则: CTRL-K CTRL-K CTRL-Y CTRL-Y[凯文·康纳]:
如果不是从行首开始,请添加ctrl-a。第二个ctrl-k是获取换行符。如果您只需要文本,可以将其删除。将光标放在行上,如果不是在开始时按CTRL-a键,则: CTRL-K CTRL-K CTRL-Y
CTRL-Y[凯文·康纳]:据我所知,非常接近。唯一需要考虑的是打开代码< >杀死整行<代码>,在C-K.中使用换行符> P>我使用
C-a C-k C-k C-y C-y
C-a C-SPACE C-n M-w C-y
分解为
:将光标移动到行首C-a
:开始选择(“设置标记”)C-SPACE
:将光标移动到下一行C-n
:复制区域M-w
:粘贴(“猛拉”)C-y
C-a C-k C-k C-y C-y
相当于同一事物(TMTOWTDI)
:将光标移动到行首C-a
:切断(“杀死”)线路C-k
:剪切换行符C-k
:粘贴(“猛拉”)(我们回到原点)C-y
:再次粘贴(现在我们有两份该行的副本)C-y
C-d
相比,这两者都是令人尴尬的冗长,但在Emacs中总是有一个定制<默认情况下,code>C-d绑定到delete char
,那么C-C-d
呢?只需将以下内容添加到.emacs
:
(global-set-key "\C-c\C-d" "\C-a\C- \C-n\M-w\C-y")
(@Nathan的elisp版本可能更可取,因为如果更改任何密钥绑定,它都不会中断。)
注意:某些Emacs模式可能会回收
C-C-d
来做其他事情。除了前面的答案,您还可以定义自己的函数来复制一行。例如,将以下内容放入.emacs文件将使C-d复制当前行
(defun duplicate-line()
(interactive)
(move-beginning-of-line 1)
(kill-line)
(yank)
(open-line 1)
(next-line 1)
(yank)
)
(global-set-key (kbd "C-d") 'duplicate-line)
我已将上面的
复制命令
绑定到一个键并使用该键。它提供了XEMAC,但我不知道GNU Emacs
`“从上面复制”命令是一个
交互式编译Lisp函数--从“/usr/share/xemacs/21.4.15/lisp/misc.elc”加载 (从上面复制命令&可选) ARG) 文档:从中复制字符 上一个非空行,刚开始 以上这一点。复制ARG字符,但是 没有超过那条线的尽头。如果没有 给出一个参数,复制其余的 排队等候。复制的字符是 在点之前插入缓冲区
Nathan添加到.emacs文件是一个不错的选择,但是可以通过替换
(open-line 1)
(next-line 1)
与
屈服
(defun duplicate-line()
(interactive)
(move-beginning-of-line 1)
(kill-line)
(yank)
(newline)
(yank)
)
(global-set-key (kbd "C-d") 'duplicate-line)
您可能希望在.emacs中包含的内容是
(setq kill-whole-line t)
这基本上会在调用kill-line(即通过C-k)时杀死整行加上换行符。然后,不需要额外的代码,您只需执行C-a C-k C-y C-y来复制该行。它分解为
C-a go to beginning of line
C-k kill-line (i.e. cut the line into clipboard)
C-y yank (i.e. paste); the first time you get the killed line back;
second time gives the duplicated line.
但是如果您经常使用这一功能,那么使用专用密钥绑定可能是一个更好的主意,但是只使用C-a C-k C-y C-y C-y的优点是您可以在其他地方复制该行,而不是在当前行的正下方。默认设置非常糟糕。但是,您可以将Emacs扩展为像SlickEdit和TextMate一样工作,即在未选择任何文本时复制/剪切当前行:
(defun duplicate-line()
(interactive)
(move-beginning-of-line 1)
(kill-line)
(yank)
(open-line 1)
(next-line 1)
(yank)
)
(global-set-key (kbd "C-d") 'duplicate-line)
(transient-mark-mode t)
(defadvice kill-ring-save (before slick-copy activate compile)
"When called interactively with no active region, copy a single line instead."
(interactive
(if mark-active (list (region-beginning) (region-end))
(message "Copied line")
(list (line-beginning-position)
(line-beginning-position 2)))))
(defadvice kill-region (before slick-cut activate compile)
"When called interactively with no active region, kill a single line instead."
(interactive
(if mark-active (list (region-beginning) (region-end))
(list (line-beginning-position)
(line-beginning-position 2)))))
将以上内容放入
.emacs
中。然后,要复制一行,M-w
。要删除行,C-w
。要复制一行,C-a M-w C-y C-y C-y…
我不太记得在其他任何地方复制行是如何工作的,但作为以前的SciTE用户,我喜欢SciTE方式的一点:它不触摸光标位置!
所以上面所有的回答对我来说都不够好,下面是我的嬉皮版:
(defun duplicate-line ()
"Clone line at cursor, leaving the latter intact."
(interactive)
(save-excursion
(let ((kill-read-only-ok t) deactivate-mark)
(toggle-read-only 1)
(kill-whole-line)
(toggle-read-only 0)
(yank))))
请注意,在这个过程中并没有任何内容被实际删除,标记和当前选择保持不变
顺便说一句,为什么你们这些家伙这么喜欢在有这么好的“不”干净的整行删除(C-s-backspace)的情况下乱动光标?我的函数版本可以复制一行,这行可以很好地使用撤销,并且不会弄乱光标的位置。这是一场灾难的结果 然后可以定义CTRL-D来调用此函数:
(global-set-key (kbd "C-d") 'duplicate-line)
“我写了自己版本的
复制行
,因为我不想搞砸杀人环
(defun jr-duplicate-line ()
"EASY"
(interactive)
(save-excursion
(let ((line-text (buffer-substring-no-properties
(line-beginning-position)
(line-end-position))))
(move-end-of-line 1)
(newline)
(insert line-text))))
(global-set-key "\C-cd" 'jr-duplicate-line)
使用以下命令代替
C-a
C-k
C-k
C-k
C-y
C-y
:
与
C-k
相比,它的优点包括,点在线路的什么位置都不重要(不像C-k
要求在线路的开头),而且它也会扼杀新线(同样是C-k
没有做到的事情)。我喜欢弗拉戈德的版本,除了两件事:(1)它不会用(interactive“*”
)检查缓冲区是否已经是只读的,(2)如果缓冲区的最后一行是空的,它会在缓冲区的最后一行失败(因为在这种情况下不能终止该行),使缓冲区保持只读
我做了以下更改以解决此问题:
(defun duplicate-line ()
"Clone line at cursor, leaving the latter intact."
(interactive "*")
(save-excursion
;; The last line of the buffer cannot be killed
;; if it is empty. Instead, simply add a new line.
(if (and (eobp) (bolp))
(newline)
;; Otherwise kill the whole line, and yank it back.
(let ((kill-read-only-ok t)
deactivate-mark)
(toggle-read-only 1)
(kill-whole-line)
(toggle-read-only 0)
(yank)))))
使用前缀参数,以及(我希望)直觉行为:
(defun duplicate-line (&optional arg)
"Duplicate it. With prefix ARG, duplicate ARG times."
(interactive "p")
(next-line
(save-excursion
(let ((beg (line-beginning-position))
(end (line-end-position)))
(copy-region-as-kill beg end)
(dotimes (num arg arg)
(end-of-line) (newline)
(yank))))))
光标将保留在最后一行。
或者,您可能希望指定一个前缀,以便一次复制接下来的几行:
(defun duplicate-line (&optional arg)
"Duplicate it. With prefix ARG, duplicate ARG times."
(interactive "p")
(save-excursion
(let ((beg (line-beginning-position))
(end
(progn (forward-line (1- arg)) (line-end-position))))
(copy-region-as-kill beg end)
(end-of-line) (newline)
(yank)))
(next-line arg))
我发现自己经常使用这两种方法,使用包装器函数切换前缀参数的行为
和一个键绑定:
(全局设置键(kbd“C-S-d”)'重复行)
这里还有另一个用于执行此操作的函数。我的版本没有触及杀人环,光标在新行结束,原来的位置。如果我
(defun duplicate-line (&optional arg)
"Duplicate it. With prefix ARG, duplicate ARG times."
(interactive "p")
(next-line
(save-excursion
(let ((beg (line-beginning-position))
(end (line-end-position)))
(copy-region-as-kill beg end)
(dotimes (num arg arg)
(end-of-line) (newline)
(yank))))))
(defun duplicate-line (&optional arg)
"Duplicate it. With prefix ARG, duplicate ARG times."
(interactive "p")
(save-excursion
(let ((beg (line-beginning-position))
(end
(progn (forward-line (1- arg)) (line-end-position))))
(copy-region-as-kill beg end)
(end-of-line) (newline)
(yank)))
(next-line arg))
(defun duplicate-line-or-region (&optional n)
"Duplicate current line, or region if active.
With argument N, make N copies.
With negative N, comment out original line and use the absolute value."
(interactive "*p")
(let ((use-region (use-region-p)))
(save-excursion
(let ((text (if use-region ;Get region if active, otherwise line
(buffer-substring (region-beginning) (region-end))
(prog1 (thing-at-point 'line)
(end-of-line)
(if (< 0 (forward-line 1)) ;Go to beginning of next line, or make a new one
(newline))))))
(dotimes (i (abs (or n 1))) ;Insert N times, or once if not specified
(insert text))))
(if use-region nil ;Only if we're working with a line (not a region)
(let ((pos (- (point) (line-beginning-position)))) ;Save column
(if (> 0 n) ;Comment out original with negative arg
(comment-region (line-beginning-position) (line-end-position)))
(forward-line 1)
(forward-char pos)))))
(global-set-key [?\C-c ?d] 'duplicate-line-or-region)
M-w C-a RET C-y
(defadvice kill-ring-save (before slick-copy activate compile)
"When called interactively with no active region, COPY a single line instead."
(interactive
(if mark-active (list (region-beginning) (region-end))
(message "Copied line")
(list (line-beginning-position)
(line-beginning-position 2)))))
(defadvice kill-region (before slick-cut activate compile)
"When called interactively with no active region, KILL a single line instead."
(interactive
(if mark-active (list (region-beginning) (region-end))
(message "Killed line")
(list (line-beginning-position)
(line-beginning-position 2)))))
(defun move-line-up ()
"Move the current line up."
(interactive)
(transpose-lines 1)
(forward-line -2)
(indent-according-to-mode))
(defun move-line-down ()
"Move the current line down."
(interactive)
(forward-line 1)
(transpose-lines 1)
(forward-line -1)
(indent-according-to-mode))
(global-set-key [(meta shift up)] 'move-line-up)
(global-set-key [(meta shift down)] 'move-line-down)
(defun duplicate-line ()
"Duplicate current line"
(interactive)
(kill-whole-line)
(yank)
(yank))
(global-set-key (kbd "C-x M-d") 'duplicate-line)
(defun wrx/duplicate-line-or-region (beg end)
"Implements functionality of JetBrains' `Command-d' shortcut for `duplicate-line'.
BEG & END correspond point & mark, smaller first
`use-region-p' explained:
http://emacs.stackexchange.com/questions/12334/elisp-for-applying-command-to-only-the-selected-region#answer-12335"
(interactive "r")
(if (use-region-p)
(wrx/duplicate-region-in-buffer beg end)
(wrx/duplicate-line-in-buffer)))
(defun wrx/duplicate-region-in-buffer (beg end)
"copy and duplicate context of current active region
|------------------------+----------------------------|
| before | after |
|------------------------+----------------------------|
| first <MARK>line here | first line here |
| second item<POINT> now | second item<MARK>line here |
| | second item<POINT> now |
|------------------------+----------------------------|
TODO: Acts funky when point < mark"
(set-mark-command nil)
(insert (buffer-substring beg end))
(setq deactivate-mark nil))
(defun wrx/duplicate-line-in-buffer ()
"Duplicate current line, maintaining column position.
|--------------------------+--------------------------|
| before | after |
|--------------------------+--------------------------|
| lorem ipsum<POINT> dolor | lorem ipsum dolor |
| | lorem ipsum<POINT> dolor |
|--------------------------+--------------------------|
TODO: Save history for `Cmd-Z'
Context:
http://stackoverflow.com/questions/88399/how-do-i-duplicate-a-whole-line-in-emacs#answer-551053"
(setq columns-over (current-column))
(save-excursion
(kill-whole-line)
(yank)
(yank))
(let (v)
(dotimes (n columns-over v)
(right-char)
(setq v (cons n v))))
(next-line))
(global-set-key (kbd "M-D") 'wrx/duplicate-line-or-region)
(defun duplicate-lines (arg)
(interactive "P")
(let* ((arg (if arg arg 1))
(beg (save-excursion (beginning-of-line) (point)))
(end (save-excursion (end-of-line) (point)))
(line (buffer-substring-no-properties beg end)))
(save-excursion
(end-of-line)
(open-line arg)
(setq num 0)
(while (< num arg)
(setq num (1+ num))
(forward-line 1)
(insert line))
)))
(global-set-key (kbd "C-S-o") 'duplicate-lines)
fun duplicate-line ()
(interactive)
(let ((col (current-column)))
(move-beginning-of-line 1)
(kill-line)
(yank)
(newline)
(yank)
(move-to-column col)))
SPC x l d