String yamlEncodeBlockString()

in lib/src/strings.dart [217:263]
33 lines of code
10 McCabe index (conditional complexity)

String yamlEncodeBlockString(
    YamlNode value, int indentation, String lineEnding) {
  const additionalIndentation = 2;

  if (!isBlockNode(value)) return yamlEncodeFlowString(value);

  final newIndentation = indentation + additionalIndentation;

  if (value is YamlList) {
    if (value.isEmpty) return ' ' * indentation + '[]';

    Iterable<String> safeValues;

    final children = value.nodes;

    safeValues = children.map((child) {
      var valueString =
          yamlEncodeBlockString(child, newIndentation, lineEnding);
      if (isCollection(child) && !isFlowYamlCollectionNode(child)) {
        valueString = valueString.substring(newIndentation);
      }

      return ' ' * indentation + '- $valueString';
    });

    return safeValues.join(lineEnding);
  } else if (value is YamlMap) {
    if (value.isEmpty) return ' ' * indentation + '{}';

    return value.nodes.entries.map((entry) {
      final safeKey = yamlEncodeFlowString(entry.key);
      final formattedKey = ' ' * indentation + safeKey;
      final formattedValue =
          yamlEncodeBlockString(entry.value, newIndentation, lineEnding);

      /// Empty collections are always encoded in flow-style, so new-line must
      /// be avoided
      if (isCollection(entry.value) && !isEmpty(entry.value)) {
        return formattedKey + ':\n' + formattedValue;
      }

      return formattedKey + ': ' + formattedValue;
    }).join(lineEnding);
  }

  return yamlEncodeBlockScalar(value, newIndentation, lineEnding);
}