nerdcommenter

by preservim

preservim / nerdcommenter

Vim plugin for intensely nerdy commenting powers

3.9K Stars 388 Forks Last release: over 2 years ago (2.5.2) Creative Commons Zero v1.0 Universal 523 Commits 19 Releases

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NERD Commenter

Vint

Comment functions so powerful—no comment necessary.

Installation

Via Plugin Manager (Recommended)

Vim-Plug

  1. Add
    Plug 'preservim/nerdcommenter'
    to your vimrc file.
  2. Reload your vimrc or restart
  3. Run
    :PlugInstall

Vundle or similar

  1. Add
    Plugin 'preservim/nerdcommenter'
    to your vimrc file.
  2. Reload your vimrc or restart
  3. Run
    :BundleInstall

NeoBundle

  1. Add
    NeoBundle 'preservim/nerdcommenter'
    to your vimrc file.
  2. Reload your vimrc or restart
  3. Run
    :NeoUpdate

Pathogen

cd ~/.vim/bundle
git clone https://github.com/preservim/nerdcommenter.git

Manual Installation

Unix

(For Neovim, change

~/.vim/
to
~/.config/nvim/
.)
curl -fLo ~/.vim/plugin/NERD_Commenter.vim --create-dirs \
  https://raw.githubusercontent.com/preservim/nerdcommenter/master/plugin/NERD_commenter.vim
curl -fLo ~/.vim/doc/NERD_Commenter.txt --create-dirs \
  https://raw.githubusercontent.com/preservim/nerdcommenter/master/doc/NERD_commenter.txt

Windows (PowerShell)

md ~\vimfiles\plugin
md ~\vimfiles\doc
$pluguri = 'https://raw.githubusercontent.com/preservim/nerdcommenter/master/plugin/NERD_commenter.vim'
$docsuri = 'https://raw.githubusercontent.com/preservim/nerdcommenter/master/doc/NERD_commenter.txt'
(New-Object Net.WebClient).DownloadFile($pluguri, $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath("~\vimfiles\plugin\NERD_commenter.vim"))
(New-Object Net.WebClient).DownloadFile($docsuri, $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath("~\vimfiles\doc\NERD_commenter.txt"))

Post Installation

Make sure that you have filetype plugins enabled, as the plugin makes use of |commentstring| where possible (which is usually set in a filetype plugin). See |filetype-plugin-on| for details, but the short version is make sure this line appears in your vimrc:

filetype plugin on

Usage

Documentation

Please see the vim help system for full documentation of all options:

:help nerdcommenter

Settings

Several settings can be added to your vimrc to change the default behavior. Some examples:

" Add spaces after comment delimiters by default
let g:NERDSpaceDelims = 1

" Use compact syntax for prettified multi-line comments let g:NERDCompactSexyComs = 1

" Align line-wise comment delimiters flush left instead of following code indentation let g:NERDDefaultAlign = 'left'

" Set a language to use its alternate delimiters by default let g:NERDAltDelims_java = 1

" Add your own custom formats or override the defaults let g:NERDCustomDelimiters = { 'c': { 'left': '/*','right': '/' } }

" Allow commenting and inverting empty lines (useful when commenting a region) let g:NERDCommentEmptyLines = 1

" Enable trimming of trailing whitespace when uncommenting let g:NERDTrimTrailingWhitespace = 1

" Enable NERDCommenterToggle to check all selected lines is commented or not let g:NERDToggleCheckAllLines = 1

Default mappings

The following key mappings are provided by default (there is also a menu provided that contains menu items corresponding to all the below mappings):

Most of the following mappings are for normal/visual mode only. The |NERDCommenterInsert| mapping is for insert mode only.

  • [count]cc
    |NERDCommenterComment|

    Comment out the current line or text selected in visual mode.

  • [count]cn
    |NERDCommenterNested|

    Same as cc but forces nesting.

  • [count]c
    |NERDCommenterToggle|

    Toggles the comment state of the selected line(s). If the topmost selected line is commented, all selected lines are uncommented and vice versa.

  • [count]cm
    |NERDCommenterMinimal|

    Comments the given lines using only one set of multipart delimiters.

  • [count]ci
    |NERDCommenterInvert|

    Toggles the comment state of the selected line(s) individually.

  • [count]cs
    |NERDCommenterSexy|

    Comments out the selected lines with a pretty block formatted layout.

  • [count]cy
    |NERDCommenterYank|

    Same as cc except that the commented line(s) are yanked first.

  • c$
    |NERDCommenterToEOL|

    Comments the current line from the cursor to the end of line.

  • cA
    |NERDCommenterAppend|

    Adds comment delimiters to the end of line and goes into insert mode between them.

  • |NERDCommenterInsert|

    Adds comment delimiters at the current cursor position and inserts between. Disabled by default.

  • ca
    |NERDCommenterAltDelims|

    Switches to the alternative set of delimiters.

  • [count]cl
    |NERDCommenterAlignLeft
    [count]cb
    |NERDCommenterAlignBoth

    Same as |NERDCommenterComment| except that the delimiters are aligned down the left side (

    cl
    ) or both sides (
    cb
    ).
  • [count]cu
    |NERDCommenterUncomment|

    Uncomments the selected line(s).

Contributions

This plugin was originally written in 2007 by Martin Grenfell (@scrooloose). Lots of features and many of the supported filetypes have come from community contributors. Since 2016 it has been maintained primarily by Caleb Maclennan (@alerque). Additional file type support, bug fixes, and new feature contributons are all welcome, please send them as Pull Requests on Github. If you can't contribute yourself please also feel free to open issues to report problems or request features.

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