Phrase.fromString constructor

Phrase.fromString(String phrase)

Implementation

factory Phrase.fromString(String phrase) {
  final arr = phrase.trim().split(' ');
  final invalidWords = <String>[];
  for (final word in arr) {
    if (!_phraseWordsList.any((e) => e == word)) {
      invalidWords.add(word);
    }
  }
  if (invalidWords.isNotEmpty) {
    throw PhaseException(message: 'Invalid phrase', wordList: invalidWords);
  }
  if (arr.length != 12 && arr.length != 24) {
    throw PhaseException(
      message: 'Invalid phrase length of ${arr.length}, expected 12 or 24.',
    );
  }
  return Phrase(phrase);
}