CousinRoman

CousinRoman provides functionality to convert between Roman and Arabian numerals.

The functionality provided via String and Integer extensions.

Installation

Add this line to your application's Gemfile:

gem 'cousin_roman'

And then execute:

$ bundle

Or install it yourself as:

$ gem install cousin_roman

Usage

Just use String#to_arabian or String#to_arabian! methods if you want to convert from Roman to Arabian and Integer#to_roman or Integer#to_roman! if you want to convert from Arabian to Roman.

For example:

'MMXIII'.to_arabian # => 2013
'MMYUOX'.to_arabian # => nil
'MMYOUX'.to_arabian! # => TypeError: not a valid roman number

2013.to_roman # => 'MMXIII'
'0'.to_roman # => nil
'100500'.to_roman! # => TypeError: not a valid roman number

Testing

Just run

$ rake

under gem folder (be prepared for massive output).

Contributing

  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request