--- /dev/null
+module FastGettext
+ # Responsibility:
+ # - store data threadsave
+ # - provide error messages when repositories are unconfigured
+ # - accept/reject locales that are set by the user
+ module Storage
+ class NoTextDomainConfigured < RuntimeError
+ def to_s
+ "Current textdomain (#{FastGettext.text_domain.inspect}) was not added, use FastGettext.add_text_domain !"
+ end
+ end
+
+ [:available_locales, :_locale, :text_domain, :pluralisation_rule].each do |method_name|
+ key = "fast_gettext_#{method_name}".to_sym
+ define_method method_name do
+ Thread.current[key]
+ end
+
+ define_method "#{method_name}=" do |value|
+ Thread.current[key]=value
+ update_current_cache
+ end
+ end
+ private :_locale, :_locale=
+
+
+ def available_locales
+ locales = Thread.current[:fast_gettext_available_locales] || default_available_locales
+ return unless locales
+ locales.map{|s|s.to_s}
+ end
+
+ # == cattr_accessor :default_available_locales
+ @@default_available_locales = nil
+ def default_available_locales=(avail_locales)
+ @@default_available_locales = avail_locales
+ update_current_cache
+ end
+
+ def default_available_locales
+ @@default_available_locales
+ end
+
+
+ def text_domain
+ Thread.current[:fast_gettext_text_domain] || default_text_domain
+ end
+
+ # == cattr_accessor :default_text_domain
+ @@default_text_domain = nil
+ def default_text_domain=(domain)
+ @@default_text_domain = domain
+ update_current_cache
+ end
+
+ def default_text_domain
+ @@default_text_domain
+ end
+
+
+ # if overwritten by user( FastGettext.pluralisation_rule = xxx) use it,
+ # otherwise fall back to repo or to default lambda
+ def pluralisation_rule
+ Thread.current[:fast_gettext_pluralisation_rule] || current_repository.pluralisation_rule || lambda{|i| i!=1}
+ end
+
+ def current_cache
+ Thread.current[:fast_gettext_current_cache] || {}
+ end
+
+ def current_cache=(cache)
+ Thread.current[:fast_gettext_current_cache] = cache
+ end
+
+ #global, since re-parsing whole folders takes too much time...
+ @@translation_repositories={}
+ def translation_repositories
+ @@translation_repositories
+ end
+
+ # used to speedup simple translations, does not work for pluralisation
+ # caches[text_domain][locale][key]=translation
+ @@caches={}
+ def caches
+ @@caches
+ end
+
+ def current_repository
+ translation_repositories[text_domain] || raise(NoTextDomainConfigured)
+ end
+
+ def key_exist?(key)
+ !!(cached_find key)
+ end
+
+ def cached_find(key)
+ translation = current_cache[key]
+ return translation if translation or translation == false #found or was not found before
+ current_cache[key] = current_repository[key] || false
+ end
+
+ def cached_plural_find(*keys)
+ key = '||||' + keys * '||||'
+ translation = current_cache[key]
+ return translation if translation or translation == false #found or was not found before
+ current_cache[key] = current_repository.plural(*keys) || false
+ end
+
+ def locale
+ _locale || ( default_locale || (available_locales||[]).first || 'en' )
+ end
+
+ def locale=(new_locale)
+ new_locale = best_locale_in(new_locale)
+ self._locale = new_locale if new_locale
+ end
+
+ # for chaining: puts set_locale('xx') == 'xx' ? 'applied' : 'rejected'
+ # returns the current locale, not the one that was supplied
+ # like locale=(), whoes behavior cannot be changed
+ def set_locale(new_locale)
+ self.locale = new_locale
+ locale
+ end
+
+ @@default_locale = nil
+ def default_locale=(new_locale)
+ @@default_locale = best_locale_in(new_locale)
+ update_current_cache
+ end
+
+ def default_locale
+ @@default_locale
+ end
+
+ #Opera: de-DE,de;q=0.9,en;q=0.8
+ #Firefox de-de,de;q=0.8,en-us;q=0.5,en;q=0.3
+ #IE6/7 de
+ #nil if nothing matches
+ def best_locale_in(locales)
+ formatted_sorted_locales(locales).each do |candidate|
+ return candidate if not available_locales
+ return candidate if available_locales.include?(candidate)
+ return candidate[0..1] if available_locales.include?(candidate[0..1])#available locales include a langauge
+ end
+ return nil#nothing found im sorry :P
+ end
+
+ #turn off translation if none was defined to disable all resulting errors
+ def silence_errors
+ require 'fast_gettext/translation_repository/base'
+ translation_repositories[text_domain] = TranslationRepository::Base.new('x')
+ end
+
+ private
+
+ # de-de,DE-CH;q=0.9 -> ['de_DE','de_CH']
+ def formatted_sorted_locales(locales)
+ found = weighted_locales(locales).reject{|x|x.empty?}.sort_by{|l|l.last}.reverse #sort them by weight which is the last entry
+ found.flatten.map{|l| format_locale(l)}
+ end
+
+ #split the locale and seperate it into different languages
+ #de-de,de;q=0.9,en;q=0.8 => [['de-de','de','0.5'], ['en','0.8']]
+ def weighted_locales(locales)
+ locales = locales.to_s.gsub(/\s/,'')
+ found = [[]]
+ locales.split(',').each do |part|
+ if part =~ /;q=/ #contains language and weight ?
+ found.last << part.split(/;q=/)
+ found.last.flatten!
+ found << []
+ else
+ found.last << part
+ end
+ end
+ found
+ end
+
+ #de-de -> de_DE
+ def format_locale(locale)
+ locale.sub(/^([a-zA-Z]{2})[-_]([a-zA-Z]{2})$/){$1.downcase+'_'+$2.upcase}
+ end
+
+ def update_current_cache
+ caches[text_domain] ||= {}
+ caches[text_domain][locale] ||= {}
+ caches[text_domain][locale][""] = false #ignore gettext meta key when translating
+ self.current_cache = caches[text_domain][locale]
+ end
+ end
+end
\ No newline at end of file
OSDN Git Service
