Characters takeWhile()

in lib/src/characters_impl.dart [286:300]

• 15 lines of code
• 5 McCabe index (conditional complexity)

  Characters takeWhile(bool Function(String) test) {
    if (string.isNotEmpty) {
      var breaks = Breaks(string, 0, string.length, stateSoTNoBreak);
      var index = 0;
      var endIndex = 0;
      while ((index = breaks.nextBreak()) >= 0) {
        if (!test(string.substring(endIndex, index))) {
          if (endIndex == 0) return Characters.empty;
          return StringCharacters(string.substring(0, endIndex));
        }
        endIndex = index;
      }
    }
    return this;
  }