• 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

Through pkg-isocodes:

• 185 Language codes (iso 639 - 2 letter) in 68 Languages
• 246 Country codes (iso 3166 - 2 letter) in 86 Languages

gem install i18n_data

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

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

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
..

While translations to language variants like ZH-CN are provided, translations of the names of those variants are not. In other words, while I18nData.languages('ZH_CN')['DE'] will give you the Chinese (as written in China) name of the German language ("德国"), the German name of the Chinese (as written in China) language is not provided.

Where the variant represents a country, you are able to combine the translations of the names of languages and countries (e.g. "#{I18nData.languages('DE')['ZH']} (#{I18nData.countries('DE')['CN']})" gives "Chinesisch (China)"), but there is no guarantee this will be correct gramatically or conceptionally in that language.

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

• 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

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

• 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

• Barry Allard
• Richard Doe

Michael Grosser
michael@grosser.it
License: MIT