module I18n::Tasks::PluralKeys

Constants

CLDR_CATEGORY_KEYS

Ref: cldr.unicode.org/index/cldr-spec/plural-rules

PLURAL_KEY_RE
PLURAL_KEY_SUFFIXES

Public Instance Methods

collapse_plural_nodes!(tree) click to toggle source
# File lib/i18n/tasks/plural_keys.rb, line 10
def collapse_plural_nodes!(tree)
  tree.leaves.map(&:parent).compact.uniq.each do |node|
    children = node.children
    next unless plural_forms?(children)

    node.value    = children.to_hash
    node.children = nil
    node.data.merge! children.first.data
  end
  tree
end
depluralize_key(key, locale = base_locale) click to toggle source

@param [String] key i18n key @param [String] locale to pull key data from @return [String] the base form if the key is a specific plural form (e.g. apple for apple.many), the key otherwise.

# File lib/i18n/tasks/plural_keys.rb, line 25
def depluralize_key(key, locale = base_locale)
  return key if key !~ PLURAL_KEY_RE

  key_name = last_key_part(key)
  parent_key = key[0..- (key_name.length + 2)]
  nodes = tree("#{locale}.#{parent_key}").presence || (locale != base_locale && tree("#{base_locale}.#{parent_key}"))
  if nodes && plural_forms?(nodes)
    parent_key
  else
    key
  end
end
plural_forms?(s) click to toggle source
# File lib/i18n/tasks/plural_keys.rb, line 54
def plural_forms?(s)
  s.present? && s.all? { |node| node.leaf? && plural_suffix?(node.key) }
end
plural_nodes(tree) { |parent| ... } click to toggle source

@param [::I18n::Tasks::Data::Tree::Traversal] tree @yieldparam node [::I18n::Tasks::Data::Tree::Node] plural node

# File lib/i18n/tasks/plural_keys.rb, line 40
def plural_nodes(tree)
  return to_enum(:plural_nodes, tree) unless block_given?

  visited = Set.new
  tree.leaves do |node|
    parent = node.parent
    next if !parent || visited.include?(parent)

    yield parent if plural_forms?(parent.children)
    visited.add(parent)
  end
  self
end
plural_suffix?(key) click to toggle source
# File lib/i18n/tasks/plural_keys.rb, line 58
def plural_suffix?(key)
  PLURAL_KEY_SUFFIXES.include?(key)
end