decko-commons/decko

# lib/my_custom_scanner.rb
require "i18n/tasks/scanners/file_scanner"
class Card
  module Set
    class I18nScanner < ::I18n::Tasks::Scanners::FileScanner
      include ::I18n::Tasks::Scanners::RelativeKeys
      include ::I18n::Tasks::Scanners::OccurrenceFromPosition

      # @return [Array<[absolute key, Results::Occurrence]>]
      def scan_file path
        text = read_file(path)

        text.scan(/[^\w._-]tr[( ]\s*["':](\w+)/).map do |_match|
          occurrence = occurrence_from_position(
            path, text, Regexp.last_match.offset(0).first
          )
          [absolute_key(".#{_match[0]}", path), occurrence]
        end
      end
    end
    ::I18n::Tasks.add_scanner "Card::Set::I18nScanner"
  end
end