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Contents
# frozen_string_literal: true
module Worldwide
module Cldr
class Fallbacks < Hash
def initialize
super
@all_ancestors_computed = false
@map = {}
end
def [](locale)
locale = locale.to_sym
super || store(locale, ancestry(locale))
end
def descendants(locale)
compute_all_ancestors
self.select { |_loc, loc_ancestors| loc_ancestors.include?(locale.to_sym) }.keys
end
def defined_parent_locales
@defined_parent_locales ||= cldr_defined_parents.values.uniq
end
private
def cldr_defined_parents
@cldr_defined_parents ||= YAML.load_file(File.join(Worldwide::Paths::CLDR_ROOT, "parent_locales.yml")).to_h { |k, v| [k.to_sym, v.to_sym] }
end
def ancestry(locale)
ancestors = [locale]
loop do
if cldr_defined_parents[ancestors.last]
ancestors << cldr_defined_parents[ancestors.last]
elsif I18n::Locale::Tag.tag(ancestors.last).parents.count > 0
ancestors << I18n::Locale::Tag.tag(ancestors.last).parents.first.to_sym
else
break
end
end
ancestors << :root unless ancestors.last == :root
ancestors
end
# Walk through all known locales, calculating their ancestry, and caching the results
def compute_all_ancestors
return if @all_ancestors_computed
Worldwide::Locales.known.each do |locale|
self[locale]
end
@all_ancestors_computed = true
end
end
end
end
Version data entries
45 entries across 45 versions & 1 rubygems