YamlScalar? _tryParseScalar()

in lib/src/loader.dart [216:243]

• 25 lines of code
• 18 McCabe index (conditional complexity)

  YamlScalar? _tryParseScalar(ScalarEvent scalar) {
    // Quickly check for the empty string, which means null.
    var length = scalar.value.length;
    if (length == 0) return YamlScalar.internal(null, scalar);

    // Dispatch on the first character.
    var firstChar = scalar.value.codeUnitAt(0);
    switch (firstChar) {
      case $dot:
      case $plus:
      case $minus:
        return _parseNumber(scalar);
      case $n:
      case $N:
        return length == 4 ? _parseNull(scalar) : null;
      case $t:
      case $T:
        return length == 4 ? _parseBool(scalar) : null;
      case $f:
      case $F:
        return length == 5 ? _parseBool(scalar) : null;
      case $tilde:
        return length == 1 ? YamlScalar.internal(null, scalar) : null;
      default:
        if (firstChar >= $0 && firstChar <= $9) return _parseNumber(scalar);
        return null;
    }
  }