Initial checkin for username creation

src/Utils.cpp

@@ -8,6 +8,7 @@
 #include <stdexcept>
 #include <fstream>
 #include <cstdlib>
+#include <regex>
 
 #include "Utils.h"
 
@@ -390,4 +391,12 @@ namespace uCentral::Utils {
 		}
 	}
 
+	bool ValidEMailAddress(const std::string &email) {
+		// define a regular expression
+		const std::regex pattern
+			("(\\w+)(\\.|_)?(\\w*)@(\\w+)(\\.(\\w+))+");
+
+		// try to match the string with the regular expression
+		return std::regex_match(email, pattern);
+	}
 }