logic: Test License

Test license for x days
License_generator flag -e <days>

src/lib/utility/utilityString.cpp

@@ -182,4 +182,16 @@ namespace utility
 		auto wsback = std::find_if_not(str.rbegin(), str.rend(), [](int c){ return std::isspace(c); }).base();
 		return (wsback <= wsfront ? std::string() : std::string(wsfront, wsback));
 	}
+
+	std::string substrBetween(const std::string &str, const std::string &delimiter1, const std::string &delimiter2)
+	{
+		size_t found_delimiter1 = str.find(delimiter1);
+		found_delimiter1 += delimiter1.length();
+		size_t found_delimiter2 = str.find(delimiter2,found_delimiter1);
+		if(found_delimiter1 != str.npos && found_delimiter2 != str.npos)
+		{
+			return str.substr(found_delimiter1, found_delimiter2-found_delimiter1);
+		}
+		return "";
+	}
 }

src/lib/utility/utilityString.h

@@ -32,6 +32,8 @@ namespace utility
 	std::string substrBefore(const std::string& str, char delimiter);
 	std::string substrAfter(const std::string& str, char delimiter);
 
+	std::string substrBetween(const std::string& str, const std::string& delimiter1, const std::string& delimiter2);
+
 	bool isPrefix(const std::string& prefix, const std::string& text);
 
 	std::string toUpperCase(const std::string& in);