DictionaryDefinitionTranslation.fromTranslation constructor

DictionaryDefinitionTranslation.fromTranslation(Translation translation)

Implementation

factory DictionaryDefinitionTranslation.fromTranslation(
  Translation translation,
) {
  List<String>? translations;
  var word = translation.word;
  if (word != null) {
    // inside square brackets or parenthesis
    final pattern = RegExp(r'\[.*?\]|\(.*?\)');
    word = word
        // Sometimes extra information is inside square brackets, but with
        //  characters used for separators. So it is best to remove the
        //  extra information than taking the risk of adding translations
        //  with trash (pieces of phrases) to the database.
        .replaceAll(pattern, "");

    // Sometimes translations having comma are separated by the semicolon.
    const primarySeparator = ";";
    final separators = [
      ",",
      ...TranslationLanguage.values
          .map((lang) => lang.wordSeparator)
          .whereType<String>(),
    ];
    final splitRegExp = RegExp(
      (StringBuffer()..writeAll(["[", ...separators, "]"])).toString(),
    );
    // translations = word?.split(pattern) ?? null;
    final primarySplit = word.split(primarySeparator);
    if (primarySplit.length > 1) {
      translations = primarySplit;
    } else {
      translations = word.split(splitRegExp);
    }
    translations = translations
        .map(
          (e) => e.replaceAll("【", " (").replaceAll("】", ") ").trim(),
        )
        .toSet()
        .toList();
  }
  return DictionaryDefinitionTranslation(
    definition: translation.definition,
    translations: translations,
  );
}