module I18n::Backend::Pluralization
Public Instance Methods
Overwrites the Base backend translate method so that it will check the translation meta data space (:i18n) for a locale specific pluralization rule and use it to pluralize the given entry. I.e. the library expects pluralization rules to be stored at I18n.t(:'i18n.plural.rule')
Pluralization rules are expected to respond to call(count) and return a pluralization key. Valid keys depend on the translation data hash (entry) but it is generally recommended to follow CLDR's style, i.e., return one of the keys :zero, :one, :few, :many, :other.
The :zero key is always picked directly when count equals 0 AND the translation data has the key :zero. This way translators are free to either pick a special :zero translation even for languages where the pluralizer does not return a :zero key.
# File lib/i18n/backend/pluralization.rb, line 30 def pluralize(locale, entry, count) return entry unless entry.is_a?(Hash) and count pluralizer = pluralizer(locale) if pluralizer.respond_to?(:call) key = count == 0 && entry.has_key?(:zero) ? :zero : pluralizer.call(count) raise InvalidPluralizationData.new(entry, count, key) unless entry.has_key?(key) entry[key] else super end end
Protected Instance Methods
# File lib/i18n/backend/pluralization.rb, line 49 def pluralizer(locale) pluralizers[locale] ||= I18n.t(:'i18n.plural.rule', :locale => locale, :resolve => false) end
# File lib/i18n/backend/pluralization.rb, line 45 def pluralizers @pluralizers ||= {} end