Exemplo n.º 1
0
//------------------------------------------------------------------------------
// Name: toJson
//------------------------------------------------------------------------------
QString QJsonDocument::toJson(const QJsonValue &v, JsonFormat format) const {

	QString b;
	QTextStream ss(&b, QIODevice::WriteOnly | QIODevice::Text);

	switch(v.type()) {
	case QJsonValue::Null:
		ss << "null";
		break;
	case QJsonValue::Bool:
		ss << (v.toBool() ? "true" : "false");
		break;
	case QJsonValue::Double:
		ss << v.toDouble();
		break;
	case QJsonValue::String:
		ss << '"' << escapeString(v.toString()) << '"';
		break;
	case QJsonValue::Array:
		{
			const QJsonArray a = v.toArray();
			ss << "[";
			if(!a.empty()) {
				QJsonArray::const_iterator it = a.begin();
				QJsonArray::const_iterator e  = a.end();

				ss << toJson(*it++, format);

				for(;it != e; ++it) {
					ss << ',';
					ss << toJson(*it, format);
				}
			}
			ss << "]";
		}
		break;
	case QJsonValue::Object:
		{
			const QJsonObject o = v.toObject();
			ss << "{";
			if(!o.empty()) {
				QJsonObject::const_iterator it = o.begin();
				QJsonObject::const_iterator e  = o.end();

				ss << '"' << escapeString(it.key()) << "\": " << toJson(it.value(), format);
				++it;
				for(;it != e; ++it) {
					ss << ',';
					ss << '"' << escapeString(it.key()) << "\": " << toJson(it.value(), format);
				}
			}
			ss  << "}";
		}
		break;
	case QJsonValue::Undefined:
		Q_ASSERT(0);
		break;
	}

	return b;
}