String _similarCommandsText()

in lib/command_runner.dart [213:238]

• 24 lines of code
• 7 McCabe index (conditional complexity)

  String _similarCommandsText(String name, Iterable<Command<T>> commands) {
    if (suggestionDistanceLimit <= 0) return '';
    var distances = <Command<T>, int>{};
    var candidates =
        SplayTreeSet<Command<T>>((a, b) => distances[a]! - distances[b]!);
    for (var command in commands) {
      if (command.hidden) continue;
      var distance = _editDistance(name, command.name);
      if (distance <= suggestionDistanceLimit) {
        distances[command] = distance;
        candidates.add(command);
      }
    }
    if (candidates.isEmpty) return '';

    var similar = StringBuffer();
    similar
      ..writeln()
      ..writeln()
      ..writeln('Did you mean one of these?');
    for (var command in candidates) {
      similar.writeln('  ${command.name}');
    }

    return similar.toString();
  }