c++ string about utils code

string_utils.cpp

static std::string strip(const std::string& content)
{
	if (content.empty())
	{
		return content;
	}
	std::string result = content;
	while (true)
	{
		const wchar_t last_char = result[result.size() - 1];
		if (last_char == '\r' ||
			last_char == '\n' ||
			last_char == ' ' ||
			last_char == ',' ||
			last_char == '\t')
		{
			result = result.substr(0, result.size() - 1);
		}
		else
		{
			break;
		}
	}
	return result;
}
static std::vector<std::string> splitString(const std::string& s, const std::string& c)
{
	std::vector<std::string> v;
	std::string::size_type pos1, pos2;
	pos2 = s.find(c);
	pos1 = 0;
	while (std::string::npos != pos2)
	{
		v.push_back(s.substr(pos1, pos2 - pos1));
		pos1 = pos2 + c.size();
		pos2 = s.find(c, pos1);
	}
	if (pos1 != s.length())
		v.push_back(s.substr(pos1));
	return v;
}
static std::string getFileContent(const std::string& filePath)
{
	std::string result;
	std::ifstream ifs(filePath);
	if (!ifs.is_open())
	{
		return result;
	}
	while (!ifs.eof())
	{
		std::string line;
		std::getline(ifs, line);
		result += line + "\n";
	}
	return result;
}