std::string trim

strtrim.h

	static inline std::string &ltrim(std::string &s){
	  s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
		  return s;
		}

		static inline std::string &rtrim(std::string &s) {
		  s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
		  return s;
		}

		static inline std::string &trim(std::string &s) {
		  return ltrim(rtrim(s));
		}