# File lib/gherkin/formatter/argument.rb, line 13
      def self.format(string, argument_format, arguments)
        arguments ||= []
        s = string.dup
        offset = past_offset = 0
        arguments.each do |arg|
          next if arg.byte_offset.nil? || arg.byte_offset < past_offset
          replacement = argument_format.format_argument(arg.val)
          s[arg.byte_offset + offset, arg.val.length] = replacement
          offset += replacement.unpack("U*").length - arg.val.unpack("U*").length
          past_offset = arg.byte_offset + arg.val.length
        end
        s
      end