Function parseOptionValues

fdbclient/MultiVersionTransaction.actor.cpp:2825–2862

}

std::vector<std::string> parseOptionValues(std::string valueStr) {
	std::string specialCharacters = "\\";
	specialCharacters += ENV_VAR_PATH_SEPARATOR;

	std::vector<std::string> values;

	size_t index = 0;
	size_t nextIndex = 0;
	std::stringstream ss;
	while (true) {
		nextIndex = valueStr.find_first_of(specialCharacters, index);
		char c = nextIndex == valueStr.npos ? ENV_VAR_PATH_SEPARATOR : valueStr[nextIndex];

		if (c == '\\') {
			if (valueStr.size() == nextIndex + 1 || specialCharacters.find(valueStr[nextIndex + 1]) == valueStr.npos) {
				throw invalid_option_value();
			}

			ss << valueStr.substr(index, nextIndex - index);
			ss << valueStr[nextIndex + 1];

			index = nextIndex + 2;
		} else if (c == ENV_VAR_PATH_SEPARATOR) {
			ss << valueStr.substr(index, nextIndex - index);
			values.push_back(ss.str());
			ss.str(std::string());

			if (nextIndex == valueStr.npos) {
				break;
			}
			index = nextIndex + 1;
		} else {
			ASSERT(false);
		}
	}

	return values;
}

// This function sets all environment variable options which have not been set previously by a call to this function.
// If an option has multiple values and setting one of those values failed with an error, then only those options