CLDR!

lib/i18n/backend.rb

@@ -5,6 +5,7 @@ module Backend
     autoload :Cache,                 'i18n/backend/cache'
     autoload :Cascade,               'i18n/backend/cascade'
     autoload :Chain,                 'i18n/backend/chain'
+    autoload :Cldr,                  'i18n/backend/cldr'
     autoload :Fallbacks,             'i18n/backend/fallbacks'
     autoload :Fast,                  'i18n/backend/fast'
     autoload :Gettext,               'i18n/backend/gettext'

lib/i18n/backend/cldr.rb

@@ -0,0 +1,34 @@
+# encoding: utf-8
+$:.unshift '/Volumes/Users/sven/Development/projects/i18n/cldr/lib'
+require 'cldr'
+
+module I18n
+  module Backend
+    module Cldr
+      include ::Cldr::Format
+
+      def localize(locale, object, format = :default, options = {})
+        case object
+        when ::Numeric
+          format(locale, object, { :as => :number }.merge(options))
+        else
+          super
+        end
+      end
+
+      protected
+
+        def lookup_number_format(locale, type, format)
+          I18n.t(:"numbers.formats.#{type}.#{format || :default}.pattern", :locale => locale)
+        end
+
+        def lookup_number_symbols(locale)
+          I18n.t(:'numbers.symbols', :locale => locale)
+        end
+
+        def lookup_currency(locale, currency, count)
+          I18n.t(:"currencies.#{currency}", :locale => locale, :count => count)
+        end
+    end
+  end
+end

test/cases/backend/cldr_test.rb

@@ -0,0 +1,42 @@
+# encoding: utf-8
+
+require File.expand_path(File.dirname(__FILE__) + '/../../test_helper')
+require 'i18n/backend/cldr'
+
+class I18nBackendCldrTest < Test::Unit::TestCase
+  class Backend
+    include I18n::Backend::Base
+    include I18n::Backend::Cldr
+  end
+
+  def setup
+    I18n.backend = Backend.new
+    I18n.locale = :de
+    I18n.load_path += Dir[locales_dir + '/cldr/**/*.{yml,rb}']
+    super
+  end
+
+  define_method :"test: format_number" do
+    assert_equal '123.456,78', I18n.l(123456.78)
+  end
+
+  define_method :"test: format_currency" do
+    assert_equal '123.456,78 EUR', I18n.l(123456.78, :currency => 'EUR')
+  end
+
+  # hu? does this actually make any sense?
+  define_method :"test: format_currency translating currency names" do 
+    assert_equal '1,00 Irisches Pfund', I18n.l(1, :currency => :IEP)
+    assert_equal '2,00 Irische Pfund',  I18n.l(2, :currency => :IEP)
+  end
+
+  # this is odd but the cldr percent format does not include a fraction
+  define_method :"test: format_percent" do
+    assert_equal '123.457 %', I18n.l(123456.78, :as => :percent)
+  end
+
+  # so we can pass a precision manually
+  define_method :"test: format_percent w/ precision" do
+    assert_equal '123.456,70 %', I18n.l(123456.7, :as => :percent, :precision => 2)
+  end
+end

test/locales/cldr/de/currencies.yml

@@ -0,0 +1,8 @@
+de: 
+  currencies: 
+    EUR: 
+      one: Euro
+      other: Euro
+    IEP: 
+      one: "Irisches Pfund"
+      other: "Irische Pfund"

test/locales/cldr/de/numbers.yml

@@ -0,0 +1,31 @@
+de: 
+  numbers: 
+    formats: 
+      currency: 
+        default:
+          pattern: "#,##0.00 ¤"
+          unit: 
+            one: "{0} {1}"
+            other: "{0} {1}"
+      decimal: 
+        default:
+          pattern: "#,##0.###"
+      percent: 
+        default:
+          pattern: "#,##0 %"
+      scientific: 
+        default:
+          pattern: "#E0"
+    symbols: 
+      decimal: ","
+      exponential: E
+      group: "."
+      infinity: ∞
+      list: ;
+      minus_sign: "-"
+      nan: NaN
+      native_zero_digit: 0
+      pattern_digit: "#"
+      per_mille: ‰
+      percent_sign: "%"
+      plus_sign: +