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 Ruby and Eruby
• Various constructs in Coffeescript
• Various constructs in Perl
• Various constructs in Python
• PHP arrays
• Javascript object literals and functions
• Tags in HTML/XML
• Handlebars components
• CSS, SCSS, LESS style declarations.
• YAML arrays and maps
• Lua functions and tables
• Go structs
• Vimscript line continuations
• TeX blocks
• C if clauses and function calls
• Do-blocks in Elixir

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

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.