Rtlcss

A wrapper gem for the rtlcss npm package to flip CSS direction in ruby. For example, given the following CSS that's designed to work with LTR (Left To Right) layouts:

a {
  left: 5px;
  padding-right: 5px;
  margin: 1px 2px 3px 4px;
}

You can use this gem to produce the following CSS which is suitable for RTL (Right To Left) layouts:

a {
  right: 5px;
  padding-left: 5px;
  margin: 1px 4px 3px 2px;
}

This gem uses mini_racer to call the rtlcss npm package.

Install the gem and add to the application's Gemfile by executing:

$ bundle add rtlcss

If bundler is not being used to manage dependencies, install the gem by executing:

$ gem install rtlcss

require "rtlcss"

Rtlcss.flip_css("a { right: 1px; }") # => "a { left: 1px; }"

Syntactically-broken CSS will raise a Rtlcss::FlipError exception.

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, update the CHANGELOG.md file, and commit the changes and push to GitHub. Our GitHub Action will then take care of pushing the new versio to rubygems.org.

Instructions for updating the distributed copy of rtlcss that's included with this gem (i.e. the dist/main.js file) can be found in the README in the rtlcss-miniracer directory.

Bug reports and pull requests are welcome on GitHub at https://github.com/discourse/rtlcss. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

The gem is available as open source under the terms of the MIT License.

Everyone interacting in the Rtlcss project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.