96 lines
4 KiB
Markdown
96 lines
4 KiB
Markdown
# vim-expand-region
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## About
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[vim-expand-region] is a Vim plugin that allows you to visually select increasingly larger regions of text using the same key combination. It is similar to features from other editors:
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- Emac's [expand region](https://github.com/magnars/expand-region.el)
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- IntelliJ's [syntax aware selection](http://www.jetbrains.com/idea/documentation/tips/#tips_code_editing)
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- Eclipse's [select enclosing element](http://stackoverflow.com/questions/4264047/intellij-ctrlw-equivalent-shortcut-in-eclipse)
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<p align="center">
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<img src="https://raw.github.com/terryma/vim-expand-region/master/expand-region.gif" alt="vim-expand-region" />
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</p>
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## Installation
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Install using [Pathogen], [Vundle], [Neobundle], or your favorite Vim package manager.
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## Quick Start
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Press ```+``` to expand the visual selection and ```_``` to shrink it.
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## Mapping
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Customize the key mapping if you don't like the default.
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```
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map K <Plug>(expand_region_expand)
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map J <Plug>(expand_region_shrink)
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```
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## Setting
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### Customize selected regions
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The plugin uses __your own__ text objects to determine the expansion. You can customize the text objects the plugin knows about with ```g:expand_region_text_objects```.
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```vim
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" Default settings. (NOTE: Remove comments in dictionary before sourcing)
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let g:expand_region_text_objects = {
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\ 'iw' :0,
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\ 'iW' :0,
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\ 'i"' :0,
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\ 'i''' :0,
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\ 'i]' :1, " Support nesting of square brackets
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\ 'ib' :1, " Support nesting of parentheses
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\ 'iB' :1, " Support nesting of braces
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\ 'il' :0, " 'inside line'. Available through https://github.com/kana/vim-textobj-line
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\ 'ip' :0,
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\ 'ie' :0, " 'entire file'. Available through https://github.com/kana/vim-textobj-entire
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\ }
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```
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You can extend the global default dictionary by calling ```expand_region#custom_text_objects```:
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```vim
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" Extend the global default (NOTE: Remove comments in dictionary before sourcing)
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call expand_region#custom_text_objects({
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\ "\/\\n\\n\<CR>": 1, " Motions are supported as well. Here's a search motion that finds a blank line
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\ 'a]' :1, " Support nesting of 'around' brackets
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\ 'ab' :1, " Support nesting of 'around' parentheses
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\ 'aB' :1, " Support nesting of 'around' braces
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\ 'ii' :0, " 'inside indent'. Available through https://github.com/kana/vim-textobj-indent
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\ 'ai' :0, " 'around indent'. Available through https://github.com/kana/vim-textobj-indent
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\ })
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```
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You can further customize the text objects dictionary on a per filetype basis by defining global variables like ```g:expand_region_text_objects_{ft}```.
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```vim
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" Use the following setting for ruby. (NOTE: Remove comments in dictionary before sourcing)
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let g:expand_region_text_objects_ruby = {
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\ 'im' :0, " 'inner method'. Available through https://github.com/vim-ruby/vim-ruby
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\ 'am' :0, " 'around method'. Available through https://github.com/vim-ruby/vim-ruby
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\ }
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```
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Note that this completely replaces the default dictionary. To extend the default on a per filetype basis, you can call ```expand_region#custom_text_objects``` by passing in the filetype in the first argument:
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```vim
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" Use the global default + the following for ruby
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call expand_region#custom_text_objects('ruby', {
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\ 'im' :0,
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\ 'am' :0,
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\ })
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```
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### Customize selection mode
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By default, after an expansion, the plugin leaves you in visual mode. If your ```selectmode```(h:selectmode)) contains ```cmd```, then the plugin will respect that setting and leave you in select mode. If you don't have ```selectmode``` set, but would like to default the expansion in select mode, you can use the global setting below:
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```vim
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let g:expand_region_use_select_mode = 1
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```
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[vim-expand-region]:http://github.com/terryma/vim-expand-region
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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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[](https://bitdeli.com/free "Bitdeli Badge")
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