Convert array to range ppoi string. Or range ppoi string to array.

Add this line to your application's Gemfile:

gem 'range_ppoi_string'

And then execute:

$ bundle

Or install it yourself as:

$ gem install range_ppoi_string

require 'range_ppoi_string'
using RangePpoiString

s = [1, *3..5, 7, 11].to_s #=> "1,3-5,7,11"
s.to_a #=> ["1", "3", "4", "5", "7", "11"]

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, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/yancya/range_ppoi_string.