pickMultiStringMap method

Map<String, List<String>>? pickMultiStringMap(String name)

Implementation

Map<String, List<String>>? pickMultiStringMap(String name) {
  if (base == null || results.wasParsed(name)) {
    final value = results[name];
    if (value != null) {
      _pickedAny = true;
      final list = value as List<String>;
      final map = <String, List<String>>{};
      for (var item in list) {
        final parts = item.split(':');
        if (parts.length < 2) {
          throw ArgumentError.value(
            item,
            name,
            'must be in the format <dest>:<source>',
          );
        }
        final dest = parts[0];
        final source = parts
            .sublist(1)
            .join(':'); // Re-join in case of Windows paths like C:\
        map.putIfAbsent(dest, () => []).add(source);
      }
      return map;
    }
  }
  return null;
}