std::string & TrimR(std::string & val);
std::string & Trim(std::string & val);
+std::string ToLower(const std::string & value);
+std::string ToUpper(const std::string & value);
+
std::string IconvString(const std::string & source, const std::string & from, const std::string & to);
int ParseInt(const std::string & str, int * val);