convert method

@override String convert(List items)

Converts input and returns the result of the conversion.

Implementation

@override
String convert(List<dynamic> items) {
  final result = StringBuffer();
  for (final dynamic item_ in items) {
    dynamic item = item_;
    if (item is! List) {
      item = item.toCsv();
      if (item is! List) {
        throw Exception(
          'Expecting $item to be a List or have toCsv() function that returns List',
        );
      }
    }
    for (int i = 0; i < item.length; i++) {
      dynamic cell = item[i];
      if (cell is! String) {
        cell = '$cell';
      }
      writeCsvCell(cell, result);
      if (i == item.length - 1) {
        result.write('\r\n');
      } else {
        result.write(',');
      }
    }
  }
  return result.toString();
}