177 lines
10 KiB
Markdown
177 lines
10 KiB
Markdown
# vim-multiple-cursors [](https://travis-ci.org/terryma/vim-multiple-cursors)
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###Contributors
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- [eapache](https://github.com/eapache)
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- [aschrab](https://github.com/aschrab)
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- [kristijanhusak](https://github.com/kristijanhusak)
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- [faceleg](https://github.com/faceleg)
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## About
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[There](https://github.com/paradigm/vim-multicursor) [have](https://github.com/felixr/vim-multiedit) [been](https://github.com/hlissner/vim-multiedit) [many](https://github.com/adinapoli/vim-markmultiple) [attempts](https://github.com/AndrewRadev/multichange.vim) at bringing Sublime Text's awesome [multiple selection][sublime-multiple-selection] feature into Vim, but none so far have been in my opinion a faithful port that is simplistic to use, yet powerful and intuitive enough for an existing Vim user. [vim-multiple-cursors] is yet another attempt at that.
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### It's great for quick refactoring
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### Add a cursor to each line of your visual selection
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### Do it backwards too! This is not just a replay of the above gif :)
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### Add multiple cursors using regexes
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To see what keystrokes are used for the above example, see [this issue](https://github.com/terryma/vim-multiple-cursors/issues/39).
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## Features
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- Live update in Insert mode
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- One key to rule it all! See [Quick Start](#quick-start) on what the key does in different scenarios
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- Works in Normal, Insert, and Visual mode for any commands (including
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multi-key commands, assuming you set `g:multicursor_insert_maps` and
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`g:multicursor_normal_maps`; see Settings below for details)
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## Installation
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Install using [Pathogen], [Vundle], [Neobundle], or your favorite Vim package manager.
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Requires vim 7.4 or later for full functionality.
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## Quick Start
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Out of the box, all you need to know is a single key `Ctrl-n`. Pressing the key in Normal mode highlights the current word under the cursor in Visual mode and places a virtual cursor at the end of it. Pressing it again finds the next ocurrence and places another virtual cursor at the end of the visual selection. If you select multiple lines in Visual mode, pressing the key puts a virtual cursor at every line and leaves you in Normal mode.
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After you've marked all your locations with `Ctrl-n`, you can change the visual selection with normal Vim motion commands in Visual mode. You could go to Normal mode by pressing `v` and wield your motion commands there. Single key command to switch to Insert mode such as `c` or `s` from Visual mode or `i`, `a`, `I`, `A` in Normal mode should work without any issues.
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At any time, you can press `<Esc>` to exit back to regular Vim.
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Two additional keys are also mapped:
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- `Ctrl-p` in Visual mode will remove the current virtual cursor and go back to the previous virtual cursor location. This is useful if you are trigger happy with `Ctrl-n` and accidentally went too far.
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- `Ctrl-x` in Visual mode will remove the current virtual cursor and skip to the next virtual cursor location. This is useful if you don't want the current selection to be a candidate to operate on later.
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You can also add multiple cursors using a regular expression. The command `MultipleCursorsFind` accepts a range and a pattern, and it will create a virtual cursor at the end of every match within the range. If no range is passed in, then it defaults to the entire buffer.
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**NOTE:** If at any time you have lingering cursors on screen, you can press `Ctrl-n` in Normal mode and it will remove all prior cursors before starting a new one.
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## Mapping
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Out of the box, only the single key `Ctrl-n` is mapped in regular Vim's Normal mode and Visual mode to provide the functionality mentioned above. `Ctrl-n`, `Ctrl-p`, `Ctrl-x`, and `<Esc>` are mapped in the special multicursor mode once you've added at least one virtual cursor to the buffer. If you don't like the plugin taking over your favorite key bindings, you can turn off the default with
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```
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let g:multi_cursor_use_default_mapping=0
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```
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You can then map the 'next', 'previous', 'skip', and 'exit' keys like the following:
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```
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" Default mapping
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let g:multi_cursor_next_key='<C-n>'
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let g:multi_cursor_prev_key='<C-p>'
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let g:multi_cursor_skip_key='<C-x>'
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let g:multi_cursor_quit_key='<Esc>'
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```
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By default, the 'next' key is also used to enter multicursor mode. If you want to use a different key to start multicursor mode than for selecting the next location, do like the following:
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```
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" Map start key separately from next key
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let g:multi_cursor_start_key='<F6>'
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```
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Note that when multicursor mode is started, it selects current word without boundaries, i.e. it behaves like `g*`. If you want to use word boundaries in Normal mode (as `*` does) but still have old behaviour up your sleeve, you can do the following:
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```
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let g:multi_cursor_start_key='g<C-n>'
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let g:multi_cursor_start_word_key='<C-n>'
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```
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In this configuration `<C-n>` will start multicursor mode using word boundaries (but only in Normal mode, as it does not make much sense to use it in Visual mode). Old behaviour without word boundaries is still available using `g<C-n>`.
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**IMPORTANT:** Please note that currently only single keystrokes and special keys can be mapped. This means that a mapping like `<Leader>n` will NOT work correctly. For a list of special keys that are supported, see `help :key-notation`
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**NOTE:** Please make sure to always map something to `g:multi_cursor_quit_key`, otherwise you'll have a tough time quitting from multicursor mode.
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**NOTE:** Prior to version 1.3, the recommended way to map the keys is using the expression quote syntax in Vim, using something like `"\<C-n>"` or `"\<Esc>"` (see h: expr-quote). After 1.3, the recommended way is to use a raw string like above. If your key mappings don't appear to work, give the new syntax a try.
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## Setting
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Currently there are four additional global settings one can tweak:
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### ```g:multi_cursor_exit_from_visual_mode``` (Default: 1)
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If set to 0, then pressing `g:multi_cursor_quit_key` in _Visual_ mode will not quit and delete all existing cursors. This is useful if you want to press Escape and go back to Normal mode, and still be able to operate on all the cursors.
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### ```g:multi_cursor_exit_from_insert_mode``` (Default: 1)
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If set to 0, then pressing `g:multi_cursor_quit_key` in _Insert_ mode will not quit and delete all existing cursors. This is useful if you want to press Escape and go back to Normal mode, and still be able to operate on all the cursors.
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### ```g:multi_cursor_insert_maps``` (Default: `{}`)
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Any key in this map (values are ignored) will cause multi-cursor _Insert_ mode
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to pause for `timeoutlen` waiting for map completion just like normal vim.
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Otherwise keys mapped in insert mode are ignored when multiple cursors are
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active. For example, setting it to `{'\':1}` will make insert-mode mappings
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beginning with the default leader key work in multi-cursor mode. You have to
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manually set this because vim doesn't provide a way to see which keys *start*
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mappings.
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### ```g:multi_cursor_normal_maps``` (Default: `{}`)
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Any key in this map (values are ignored) will cause multi-cursor _Normal_ mode
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to pause for map completion just like normal vim. Otherwise keys mapped in
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normal mode will "fail to replay" when multiple cursors are active. For example,
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setting it to `{'d':1}` will make normal-mode mappings beginning with `d` (such
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as `dw` to delete a word) work in multi-cursor mode. You have to
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manually set this because vim doesn't provide a way to see which keys *start*
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mappings; setting it to include motion commands like `j` can break things.
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### Interactions with other plugins
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### ```Multiple_cursors_before/Multiple_cursors_after``` (Default: `nothing`)
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Other plugins may trigger on keypresses when in insert mode. These plugins
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generally provide a means to toggle their active state. These hooks allow
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the user to provide functions in their .vimrc to do this when multiple-cursor-mode
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is entered.
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For example, if you are using [Neocomplete](https://github.com/Shougo/neocomplete.vim),
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add this to your vimrc to prevent conflict:
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```
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" Called once right before you start selecting multiple cursors
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function! Multiple_cursors_before()
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if exists(':NeoCompleteLock')==2
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exe 'NeoCompleteLock'
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endif
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endfunction
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" Called once only when the multiple selection is canceled (default <Esc>)
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function! Multiple_cursors_after()
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if exists(':NeoCompleteUnlock')==2
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exe 'NeoCompleteUnlock'
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endif
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endfunction
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```
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With this locking and unlocking we prevent neocomplete to trigger it's function calls until we are finished with multiple cursors editing.
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### Highlight
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The plugin uses the highlight group `multiple_cursors_cursor` and `multiple_cursors_visual` to highlight the virtual cursors and their visual selections respectively. You can customize them by putting something similar like the following in your vimrc:
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```
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" Default highlighting (see help :highlight and help :highlight-link)
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highlight multiple_cursors_cursor term=reverse cterm=reverse gui=reverse
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highlight link multiple_cursors_visual Visual
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```
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## Issues
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- Select mode is not implemented
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## Changelog
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See [CHANGELOG.md](CHANGELOG.md)
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## Contributing
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As one can see, there're still many issues to be resolved, patches and suggestions are always welcome! A list of open feature requests can be found [here](../../issues?labels=enhancement&state=open).
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Running the test suite requires ruby and rake as well as vim of course. On Mac
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OS, [MacVim](https://code.google.com/p/macvim/) is known to work.
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## Credit
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Obviously inspired by Sublime Text's [multiple selection][sublime-multiple-selection] feature, also encouraged by Emac's [multiple cursors][emacs-multiple-cursors] implementation by Magnar Sveen
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[vim-multiple-cursors]:http://github.com/terryma/vim-multiple-cursors
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[sublime-multiple-selection]:http://www.sublimetext.com/docs/2/multiple_selection_with_the_keyboard.html
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[Pathogen]:http://github.com/tpope/vim-pathogen
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[Vundle]:http://github.com/gmarik/vundle
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[Neobundle]:http://github.com/Shougo/neobundle.vim
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[emacs-multiple-cursors]:https://github.com/magnars/multiple-cursors.el
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[](https://bitdeli.com/free "Bitdeli Badge")
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