Present users coutries/languages in their language
Convert a country/language-name to its 2-letter-code
List of 2-letter-code/name pairs for all countries/languages in all languages

Translations

185 Language codes (iso 639 - 2 letter) in 68 Languages
246 Country codes (iso 3166 - 2 letter) in 86 Languages
contry specific codes e.g. zh_TW are also available, have a look at the isocodes website for all options

Install

gem install i18n_data

Usage

require 'i18n_data'
...
I18nData.languages        # {"DE"=>"German",...}
I18nData.languages('DE')  # {"DE"=>"Deutsch",...}
I18nData.languages('FR')  # {"DE"=>"Allemand",...}
...

I18nData.countries        # {"DE"=>"Germany",...}
I18nData.countries('DE')  # {"DE"=>"Deutschland",...}
...

I18nData.language_code('German')       # DE
I18nData.language_code('Deutsch')      # DE
I18nData.language_code('Allemand')     # DE
..

I18nData.country_code('Germany')       # DE
I18nData.country_code('Deutschland')   # DE
..

Data Providers

FileDataProvider: FAST (default) (loading data from cache-files)
LiveDataProvider: SLOW (fetching up-to-date data from svn repos)

Development

update FileDataProvider caches after each code-change to make changes available to users rake write_cache_for_file_data_provider
FileDataProvider tests might fail if caches are not updates

Alphabetical localized sorting

If you would like to have the countries list sorted alphabetically in different languages there is a gem called sort_alphabetical for that.

TODO

include other language/country code formats (3-letter codes...) ?
parse list of files on isocodes for write_cache instead of hardcoding country-specific ones
rake task that checks that the readme is updated with language/country counters