Method newStreamWriter

ThirdParty/jsoncpp/vtkjsoncpp/jsoncpp.cpp:5255–5296

StreamWriterBuilder::StreamWriterBuilder() { setDefaults(&settings_); }
StreamWriterBuilder::~StreamWriterBuilder() = default;
StreamWriter* StreamWriterBuilder::newStreamWriter() const {
  const String indentation = settings_["indentation"].asString();
  const String cs_str = settings_["commentStyle"].asString();
  const String pt_str = settings_["precisionType"].asString();
  const bool eyc = settings_["enableYAMLCompatibility"].asBool();
  const bool dnp = settings_["dropNullPlaceholders"].asBool();
  const bool usf = settings_["useSpecialFloats"].asBool();
  const bool emitUTF8 = settings_["emitUTF8"].asBool();
  unsigned int pre = settings_["precision"].asUInt();
  CommentStyle::Enum cs = CommentStyle::All;
  if (cs_str == "All") {
    cs = CommentStyle::All;
  } else if (cs_str == "None") {
    cs = CommentStyle::None;
  } else {
    throwRuntimeError("commentStyle must be 'All' or 'None'");
  }
  PrecisionType precisionType(significantDigits);
  if (pt_str == "significant") {
    precisionType = PrecisionType::significantDigits;
  } else if (pt_str == "decimal") {
    precisionType = PrecisionType::decimalPlaces;
  } else {
    throwRuntimeError("precisionType must be 'significant' or 'decimal'");
  }
  String colonSymbol = " : ";
  if (eyc) {
    colonSymbol = ": ";
  } else if (indentation.empty()) {
    colonSymbol = ":";
  }
  String nullSymbol = "null";
  if (dnp) {
    nullSymbol.clear();
  }
  if (pre > 17)
    pre = 17;
  String endingLineFeedSymbol;
  return new BuiltStyledStreamWriter(indentation, cs, colonSymbol, nullSymbol,
                                     endingLineFeedSymbol, usf, emitUTF8, pre,
                                     precisionType);
}

bool StreamWriterBuilder::validate(Json::Value* invalid) const {
  static const auto& valid_keys = *new std::set<String>{