# File lib/pickle/parser.rb, line 27
    def parse_field(field)
      if field =~ /^#{capture_key_and_value_in_field}$/
        { $1 => eval($2) }
      else
        raise ArgumentError, "The field argument is not in the correct format.\n\n'#{field}' did not match: #{match_field}"
      end
    end