Added localized language names with plugin from http://github.com/grosser/i18n_data...

[rails.git] / vendor / plugins / i18n_data / lib / i18n_data / live_data_provider.rb

diff --git a/vendor/plugins/i18n_data/lib/i18n_data/live_data_provider.rb b/vendor/plugins/i18n_data/lib/i18n_data/live_data_provider.rb
new file mode 100644 (file)
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+++ b/vendor/plugins/i18n_data/lib/i18n_data/live_data_provider.rb
@@ -0,0 +1,97 @@
+require 'open-uri'
+require 'rexml/document'
+gem 'activesupport', '> 2.2'
+require 'activesupport'
+
+module I18nData
+  # fetches data online from debian svn
+  module LiveDataProvider
+    extend ActiveSupport::Memoizable
+    extend self
+    
+    XML_CODES = {
+      :countries => 'http://svn.debian.org/viewsvn/*checkout*/pkg-isocodes/trunk/iso-codes/iso_3166/iso_3166.xml',
+      :languages => 'http://svn.debian.org/viewsvn/*checkout*/pkg-isocodes/trunk/iso-codes/iso_639/iso_639.xml'
+    }
+    TRANSLATIONS = {
+      :languages => 'http://svn.debian.org/viewsvn/*checkout*/pkg-isocodes/trunk/iso-codes/iso_639/',
+      :countries => 'http://svn.debian.org/viewsvn/*checkout*/pkg-isocodes/trunk/iso-codes/iso_3166/'
+    }
+
+    def codes(type,language_code)
+      language_code = language_code.upcase
+      if language_code == 'EN'
+        send("english_#{type}")
+      else
+        translated(type,language_code)
+      end
+    end
+
+  private
+
+    def translate(type,language,to_language_code)
+      translated = translations(type,to_language_code)[language]
+      translated.to_s.empty? ? nil : translated
+    end
+
+    def translated(type,language_code)
+      translations = {}
+      send("english_#{type}").each do |code,name|
+        translation = translate(type,name,language_code)
+        translations[code] = translation ? translation : name
+      end
+      translations
+    end
+    memoize :translated
+
+    def translations(type,language_code)
+      begin
+        data = open(TRANSLATIONS[type]+"#{language_code.downcase}.po").readlines
+      rescue
+        raise NoTranslationAvailable.new("for #{type} and language code = #{language_code}")
+      end
+
+      po_to_hash(data)
+    end
+    memoize :translations
+
+    def english_languages
+      codes = {}
+      xml(:languages).elements.each('*/iso_639_entry') do |entry|
+        name = entry.attributes['name'].to_s.gsub("'","\\'")
+        code = entry.attributes['iso_639_1_code'].to_s.upcase
+        next if code.empty? or name.empty?
+        codes[code]=name
+      end
+      codes
+    end
+    memoize :english_languages
+
+    def english_countries
+      codes = {}
+      xml(:countries).elements.each('*/iso_3166_entry') do |entry|
+        name = entry.attributes['name'].to_s.gsub("'","\\'")
+        code = entry.attributes['alpha_2_code'].to_s.upcase
+        codes[code]=name
+      end
+      codes
+    end
+    memoize :english_countries
+
+    def po_to_hash(data)
+      names = data.select{|l| l =~ /^msgid/}.map{|line| line.match(/^msgid "(.*?)"/)[1]}
+      translations = data.select{|l| l =~ /^msgstr/}.map{|line| line.match(/^msgstr "(.*?)"/)[1]}
+
+      translated = {}
+      names.each_with_index do |name,index|
+        translated[name]=translations[index]
+      end
+      translated
+    end
+
+    def xml(type)
+      xml = open(XML_CODES[type]).read
+      REXML::Document.new(xml)
+    end
+  end
+end
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