module I18n::Backend::Base

# => "file test.txt opened by %{user}"
interpolate "file %{file} opened by %%{user}", :file => 'test.txt', :user => 'Mr. X'

Interpolates values into a given string.

def interpolate(locale, string, values = {})
  if string.is_a?(::String) && !values.empty?
    I18n.interpolate(string, values)
  else
    string
  end
end