A library for correct appearance Greek names as appropriate.
Add this line to your application's Gemfile:
gem 'greek_names'
And then execute:
$ bundle
Or install it yourself as:
$ gem install greek_names
vocative(string)
GreekNames.vocative("Αλέξανδρος") # => "Αλέξανδρε"
GreekNames.vocative("Γιώργος") # => "Γιώργο"
GreekNames.vocative("Αντώνης") # => "Αντώνη"
GreekNames.vocative("Δήμητρα") # => "Δήμητρα"
GreekNames.vocative("Παππαδόπουλος") # => "Παππαδόπουλε"