namespace command {
/**
- * Class responsible for handling commandline arguments.
- * Arguments are required,x non-named parameters of program.
+ * Base class for all the Arguments and Options.
*
* Example:
* ./myprog ARGUMENT
*/
class Parameter : public Descriptive {
+ protected:
+ /** Variable indicating if current Parameter was already used or not */
+ bool used = false;
+
public:
typedef class Parameter Type;
/**
*
* @param description Description of current Argument
*/
- Parameter(std::string description)
+ Parameter(const std::string & description)
: Descriptive(description) {
}
- virtual ~Parameter() {}
- virtual void handle() {
- std::cout << "Parameter::handle()" << std::endl;
+ virtual ~Parameter() { }
+
+ /**
+ * Method used for handling method calls linked with this Parameter
+ */
+ virtual void handle() = 0;
+
+ /**
+ * Method used for checking if the given user value understandable for
+ * parameter.
+ *
+ * @return true if passed value is understandable by current Parameter.
+ * False otherwise.
+ */
+ virtual bool understand(const std::string & ) = 0;
+
+ /**
+ * Indicates if current Parameter is required
+ *
+ * @return false, as all Parameters are non-required by default. If you
+ * want to make Parameter as required, wrap it using Required class
+ */
+ virtual bool isRequired() {
+ return false;
};
+
+ /**
+ * Indicates if current Parameter has been already used
+ *
+ * @return true if current Parameter has been already used. False otherwise.
+ */
+ virtual bool isUsed() {
+ return used;
+ }
};
}