Ⅰ. 插件描述
Multiple cursors for emacs.Ⅱ. 基本信息
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Ⅲ. 安装方法
使用Vundle管理器安装
在你的.vimrc下添加:Plugin 'magnars/multiple-cursors-el':source %
:PluginInstall对于Vundle版本 < 0.10.2，请用上面的Bundle替换Plugin。
使用NeoBundle管理器安装
在你的.vimrc下添加:NeoBundle 'magnars/multiple-cursors-el':source %
:NeoBundleInstall使用VimPlug管理器安装
在你的.vimrc下添加:Plug 'magnars/multiple-cursors-el':source %
:PlugInstall使用Pathogen管理器安装
在终端中运行以下命令:cd ~/.vim/bundle
git clone https://github.com/magnars/multiple-cursors.elⅣ. 文档说明
# multiple-cursors.el 
Multiple cursors for Emacs. This is some pretty crazy functionality, so yes,
there are kinks. Don't be afraid though, I've been using it since 2011 with
great success and much merriment.
Maintenance warning
I use this package every day, and have been doing so for years. It just works.
At least, it works for all my use cases. And if it breaks somehow, I fix it.
However, it has become painfully clear to me that I don't have time to fix
problems I don't have. It's been years since I could keep pace with the issues
and pull requests. Whenever I try, I keep getting feedback that my fix isn't
good enough by some standard I don't particularly care about.
So, I have closed the issue tracker and the pull requests. I hope you can
happily use this package, just like I do. If it doesn't work for you, then I'm
- Thankfully Emacs is infinitely malleable, you can probably fix it
yourself.
TLDR: I am still maintaining this package, but I am no longer crowdsourcing a list of issues.
Installation
I highly recommend installing multiple-cursors through package.el.
It's available on MELPA and MELPA Stable:
M-x package-install multiple-cursors
The package depends on the cl-lib package, so if you do not usepackage.el or have a recent Emacs, you would need to install that
too: see GNU ELPA.
Basic usage
Start out with:
(require 'multiple-cursors)
Then you have to set up your keybindings - multiple-cursors doesn't presume to
know how you'd like them laid out. Here are some examples:
When you have an active region that spans multiple lines, the following will
add a cursor to each line:
(global-set-key (kbd "C-S-c C-S-c") 'mc/edit-lines)
When you want to add multiple cursors not based on continuous lines, but based on
keywords in the buffer, use:
(global-set-key (kbd "C->") 'mc/mark-next-like-this)
(global-set-key (kbd "C-<") 'mc/mark-previous-like-this)
(global-set-key (kbd "C-c C-<") 'mc/mark-all-like-this)
First mark the word, then add more cursors.
To get out of multiple-cursors-mode, press <return> or C-g. The latter will
first disable multiple regions before disabling multiple cursors. If you want to
insert a newline in multiple-cursors-mode, use C-j.
Important note
Multiple cursors does not do well when you invoke its commands with M-x. It needs to be bound to keys to work properly. Pull request to fix this is welcome.
Video
You can watch an intro to multiple-cursors at Emacs Rocks.
Command overview
Mark one more occurrence
mc/mark-next-like-this: Adds a cursor and region at the next part of the buffer forwards that matches the current region.mc/mark-next-like-this-word: Adds a cursor and region at the next part of the buffer forwards that matches the current region, if no region is selected it selects the word at the point.mc/mark-next-like-this-symbol: Adds a cursor and region at the next part of the buffer forwards that matches the current region, if no region is selected it selects the symbol at the point.mc/mark-next-word-like-this: Likemc/mark-next-like-thisbut only for whole words.mc/mark-next-symbol-like-this: Likemc/mark-next-like-thisbut only for whole symbols.mc/mark-previous-like-this: Adds a cursor and region at the next part of the buffer backwards that matches the current region.mc/mark-previous-like-this-word: Adds a cursor and region at the next part of the buffer backwards that matches the current region, if no region is selected it selects the word at the point.mc/mark-previous-like-this-symbol: Adds a cursor and region at the next part of the buffer backwards that matches the current region, if no region is selected it selects the symbol at the point.mc/mark-previous-word-like-this: Likemc/mark-previous-like-thisbut only for whole words.mc/mark-previous-symbol-like-this: Likemc/mark-previous-like-thisbut only for whole symbols.mc/mark-more-like-this-extended: Use arrow keys to quickly mark/skip next/previous occurrences.mc/add-cursor-on-click: Bind to a mouse event to add cursors by clicking. See tips-section.mc/mark-pop: Set a cursor at the current point and move to the next (different) position on the mark stack. This allows for fine grained control over the placement of cursors.
Juggle around with the current cursors
mc/unmark-next-like-this: Remove the cursor furthest down in the buffer.mc/unmark-previous-like-this: Remove the cursor furthest up in the buffer.mc/skip-to-next-like-this: Remove the cursor furthest down, marking the next occurrence down.mc/skip-to-previous-like-this: Remove the cursor furthest up, marking the next occurrence up.
Mark many occurrences
mc/edit-lines: Adds one cursor to each line in the current region.mc/edit-beginnings-of-lines: Adds a cursor at the start of each line in the current region.mc/edit-ends-of-lines: Adds a cursor at the end of each line in the current region.mc/mark-all-like-this: Marks all parts of the buffer that matches the current region.mc/mark-all-words-like-this: Likemc/mark-all-like-thisbut only for whole words.mc/mark-all-symbols-like-this: Likemc/mark-all-like-thisbut only for whole symbols.mc/mark-all-in-region: Prompts for a string to match in the region, adding cursors to all of them.mc/mark-all-like-this-in-defun: Marks all parts of the current defun that matches the current region.mc/mark-all-words-like-this-in-defun: Likemc/mark-all-like-this-in-defunbut only for whole words.mc/mark-all-symbols-like-this-in-defun: Likemc/mark-all-like-this-in-defunbut only for whole symbols.mc/mark-all-dwim: Tries to be smart about marking everything you want. Can be pressed multiple times.
Special
set-rectangular-region-anchor: Think of this one asset-markexcept you're marking a rectangular region.mc/mark-sgml-tag-pair: Mark the current opening and closing tag.mc/insert-numbers: Insert increasing numbers for each cursor, top to bottom.mc/insert-letters: Insert increasing letters for each cursor, top to bottom.mc/sort-regions: Sort the marked regions alphabetically.mc/reverse-regions: Reverse the order of the marked regions.
Tips and tricks
- To get out of multiple-cursors-mode, press
<return>orC-g. The latter will
first disable multiple regions before disabling multiple cursors. If you want to
insert a newline in multiple-cursors-mode, use C-j.
(define-key mc/keymap (kbd "<return>") nil)will make<return>insert a
newline; multiple-cursors-mode can still be disabled withC-g.- Sometimes you end up with cursors outside of your view. You can
scroll the screen to center on each cursor withC-vandM-vor you can
press C-' to hide all lines without a cursor, press C-' again to unhide.
- Try pressing
mc/mark-next-like-thiswith no region selected. It
will just add a cursor on the next line. - Try pressing
mc/mark-next-like-this-wordormc/mark-next-like-this-symbolwith no region selected. It will
mark the word or symbol and add a cursor at the next occurrence
- Try pressing
mc/mark-all-like-this-dwimon a tagname in html-mode. - Notice that the number of cursors active can be seen in the modeline.
- If you get out of multiple-cursors-mode and yank - it will yank only
from the kill-ring of main cursor. To yank from the kill-rings of
every cursor use yank-rectangle, normally found at C-x r y.
- You can use
mc/reverse-regionswith nothing selected and just one cursor.
It will then flip the sexp at point and the one below it. - When you use
mc/edit-lines, you can give it a positive or negative
prefix to change how it behaves on too short lines. - If you would like to keep the global bindings clean, and get custom keybindings
when the region is active, you can try region-bindings-mode.
BTW, I highly recommend adding mc/mark-next-like-this to a key binding that's
right next to the key for er/expand-region.
Binding mouse events
To override a mouse event, you will likely have to also unbind thedown-mouse part of the event. Like this:
(global-unset-key (kbd "M-<down-mouse-1>"))
(global-set-key (kbd "M-<mouse-1>") 'mc/add-cursor-on-click)
Or you can do like me and find an unused, but less convenient, binding:
(global-set-key (kbd "C-S-<mouse-1>") 'mc/add-cursor-on-click)
Unknown commands
Multiple-cursors uses two lists of commands to know what to do: the run-once list
and the run-for-all list. It comes with a set of defaults, but it would be beyond silly
to try and include all the known Emacs commands.
So that's why multiple-cursors occasionally asks what to do about a command. It will
then remember your choice by saving it in ~/.emacs.d/.mc-lists.el. You can change
the location with:
(setq mc/list-file "/my/preferred/file")
NB! Make sure to do so before requiring multiple-cursors.
It is possible to set multiple-cursors to "run-for-all" for every
command except for those that are listed in mc/cmds-to-run-once. To
enable this set mc/always-run-for-all to non-nil. Add commands to be
run once to mc/cmds-to-run-once in ".mc-lists.el".
Known limitations
- isearch-forward and isearch-backward aren't supported with multiple cursors.
If you want this functionality, you can use phi-search. - Commands run with
M-xwon't be repeated for all cursors. - All key bindings that refer to lambdas are always run for all cursors. If you
need to limit it, you will have to give it a name. - Redo might screw with your cursors. Undo works very well.
Contribute
Yes, please do. There's a suite of tests, so remember to add tests for your
specific feature, or I might break it later.
You'll find the repo at:
https://github.com/magnars/multiple-cursors.el
To fetch the test dependencies, install
cask if you haven't already,
then:
$ cd /path/to/multiple-cursors
$ cask
Run the tests with:
$ ./run-tests.sh
Contributors
- Takafumi Arakaki has contributed several small improvements
- Marco Baringer contributed looping to
mc/cycleand adding cursors without region for mark-more. - Ivan Andrus added showing number of cursors in mode-line, and different options for how to handle short lines in
mc/edit-lines. - Fuco added the first version of
mc/mark-all-like-this-dwim - Zach Kost-Smith added
mc/mark-pop - Maciej Katafiasz added
mc/mark-all-dwim - Aleksey Fedotov added
mc-hide-unmatched-lines-mode - Jules Tamagnan added
mc/mark-next-like-this-wordandmc/mark-next-like-this-symbol - Ingo Lohmar extended
mc/add-cursor-on-clickto toggle cursors. - Andrea Orru added
mc/mark-previous-like-this-word/-symbol
Thanks!
License
Copyright (C) 2012-2016 Magnar Sveen
Author: Magnar Sveen <magnars@gmail.com>
Keywords: editing cursors
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses/.