Updated mcollective.init according to OSCI-658

[packages/precise/mcollective.git] / lib / mcollective / vendor / i18n / lib / i18n / locale / fallbacks.rb

diff --git a/lib/mcollective/vendor/i18n/lib/i18n/locale/fallbacks.rb b/lib/mcollective/vendor/i18n/lib/i18n/locale/fallbacks.rb
new file mode 100644 (file)
index 0000000..08bf6f5
--- /dev/null
+++ b/lib/mcollective/vendor/i18n/lib/i18n/locale/fallbacks.rb
@@ -0,0 +1,96 @@
+# Locale Fallbacks
+#
+# Extends the I18n module to hold a fallbacks instance which is set to an
+# instance of I18n::Locale::Fallbacks by default but can be swapped with a
+# different implementation.
+#
+# Locale fallbacks will compute a number of fallback locales for a given locale.
+# For example:
+#
+# <pre><code>
+# I18n.fallbacks[:"es-MX"] # => [:"es-MX", :es, :en] </code></pre>
+#
+# Locale fallbacks always fall back to
+#
+#   * all parent locales of a given locale (e.g. :es for :"es-MX") first,
+#   * the current default locales and all of their parents second
+#
+# The default locales are set to [I18n.default_locale] by default but can be
+# set to something else.
+#
+# One can additionally add any number of additional fallback locales manually.
+# These will be added before the default locales to the fallback chain. For
+# example:
+#
+#   # using the default locale as default fallback locale
+#
+#   I18n.default_locale = :"en-US"
+#   I18n.fallbacks = I18n::Locale::Fallbacks.new(:"de-AT" => :"de-DE")
+#   I18n.fallbacks[:"de-AT"] # => [:"de-AT", :"de-DE", :de, :"en-US", :en]
+#
+#   # using a custom locale as default fallback locale
+#
+#   I18n.fallbacks = I18n::Locale::Fallbacks.new(:"en-GB", :"de-AT" => :de, :"de-CH" => :de)
+#   I18n.fallbacks[:"de-AT"] # => [:"de-AT", :de, :"en-GB", :en]
+#   I18n.fallbacks[:"de-CH"] # => [:"de-CH", :de, :"en-GB", :en]
+#
+#   # mapping fallbacks to an existing instance
+#
+#   # people speaking Catalan also speak Spanish as spoken in Spain
+#   fallbacks = I18n.fallbacks
+#   fallbacks.map(:ca => :"es-ES")
+#   fallbacks[:ca] # => [:ca, :"es-ES", :es, :"en-US", :en]
+#
+#   # people speaking Arabian as spoken in Palestine also speak Hebrew as spoken in Israel
+#   fallbacks.map(:"ar-PS" => :"he-IL")
+#   fallbacks[:"ar-PS"] # => [:"ar-PS", :ar, :"he-IL", :he, :"en-US", :en]
+#   fallbacks[:"ar-EG"] # => [:"ar-EG", :ar, :"en-US", :en]
+#
+#   # people speaking Sami as spoken in Finnland also speak Swedish and Finnish as spoken in Finnland
+#   fallbacks.map(:sms => [:"se-FI", :"fi-FI"])
+#   fallbacks[:sms] # => [:sms, :"se-FI", :se, :"fi-FI", :fi, :"en-US", :en]
+
+module I18n
+  module Locale
+    class Fallbacks < Hash
+      def initialize(*mappings)
+        @map = {}
+        map(mappings.pop) if mappings.last.is_a?(Hash)
+        self.defaults = mappings.empty? ? [I18n.default_locale.to_sym] : mappings
+      end
+
+      def defaults=(defaults)
+        @defaults = defaults.map { |default| compute(default, false) }.flatten
+      end
+      attr_reader :defaults
+
+      def [](locale)
+        raise InvalidLocale.new(locale) if locale.nil?
+        locale = locale.to_sym
+        super || store(locale, compute(locale))
+      end
+
+      def map(mappings)
+        mappings.each do |from, to|
+          from, to = from.to_sym, Array(to)
+          to.each do |_to|
+            @map[from] ||= []
+            @map[from] << _to.to_sym
+          end
+        end
+      end
+
+      protected
+
+      def compute(tags, include_defaults = true, exclude = [])
+        result = Array(tags).collect do |tag|
+          tags = I18n::Locale::Tag.tag(tag).self_and_parents.map! { |t| t.to_sym } - exclude
+          tags.each { |_tag| tags += compute(@map[_tag], false, exclude + tags) if @map[_tag] }
+          tags
+        end.flatten
+        result.push(*defaults) if include_defaults
+        result.uniq.compact
+      end
+    end
+  end
+end