This plugin is meant to simplify a task I've found too common in my workflow: switching between a single-line statement and a multi-line one. It offers the following default keybindings, which can be customized:

• gS to split a one-liner into multiple lines
• gJ (with the cursor on the first line of a block) to join a block into a single-line statement.

I usually work with ruby and a lot of expressions can be written very concisely on a single line. A good example is the "if" statement:

puts "foo" if bar?

This is a great feature of the language, but when you need to add more statements to the body of the "if", you need to rewrite it:

if bar?
  puts "foo"
  puts "baz"
end

The idea of this plugin is to introduce a single key binding (default: gS) for transforming a line like this:

<div id="foo">bar</div>

Into this:

<div id="foo">
  bar
</div>

And another binding (default: gJ) for the opposite transformation.

This currently works for various constructs in the following languages:

• C
• CSS
• Clojure
• Coffeescript
• Elixir
• Elm
• Eruby
• Go
• HAML
• Hare
• HTML (and HTML-like markup)
• Handlebars
• JSON
• Java
• Javascript (within JSX, TSX, Vue.js templates as well)
• Lua
• PHP
• Perl
• Python
• R
• Ruby
• Rust
• SCSS and Less
• Shell (sh, bash, zsh)
• Tex
• Vimscript
• YAML

For more information, including examples for all of those languages, try :help splitjoin, or take a look at the full help file online at doc/splitjoin.txt

The easiest way to install the plugin is with a plugin manager:

• vim-plug: https://github.com/junegunn/vim-plug
• Vundle: https://github.com/VundleVim/Vundle.vim

If you use one, just follow the instructions in its documentation.

You can install the plugin yourself using Vim's "packages" functionality by cloning the project (or adding it as a submodule) under ~/.vim/pack/<any-name>/start/. For example:

git clone https://github.com/AndrewRadev/splitjoin.vim ~/.vim/pack/_/start/splitjoin

This should automatically load the plugin for you on Vim start. Alternatively, you can add it to ~/.vim/pack/<any-name>/opt/ instead and load it in your .vimrc manually with:

packadd splitjoin

If you'd rather not use git, you can download the files from the "releases" tab and unzip them in the relevant directory: https://github.com/AndrewRadev/splitjoin.vim/releases.

If you'd like to hack on the plugin, please see CONTRIBUTING.md first.

Any issues and suggestions are very welcome on the github bugtracker.