Classic Interpreter pattern was added. (Ported from dofactory to c++)

Author: khajavi

Behavioural/Interpreter/Classic/C++/Main.cpp

@@ -0,0 +1,52 @@
+/*
+ * Ported to C++ from http://www.dofactory.com/Patterns/PatternInterpreter.aspx
+ */
+
+#include <iostream>
+#include <vector>
+using namespace std;
+
+class Context {
+
+};
+
+
+class AbstractExpression {
+public:
+	virtual void interpret( Context* context ) = 0;
+};
+
+class TerminalExpression : public AbstractExpression {
+public:
+	virtual void interpret( Context* context ) {
+		cout << "Called Terminal.interpret()" << endl;
+	}
+};
+
+class NoneterminalExpression : public AbstractExpression {
+public:
+	virtual void interpret( Context* context ) {
+		cout << "Called NonTerminal.interpret()" << endl;
+	}
+};
+
+
+int main() {
+
+	Context* context = new Context();
+
+	vector<AbstractExpression*> list;
+
+	list.push_back( new TerminalExpression() );
+	list.push_back( new NoneterminalExpression() );
+	list.push_back( new TerminalExpression() );
+	list.push_back( new TerminalExpression() );
+
+	for ( vector<AbstractExpression*>::iterator it = list.begin();
+			it != list.end();
+			++it ) {
+		(*it)->interpret(context);
+	}
+
+	return 0;
+}

Behavioural/Interpreter/Main.cpp

@@ -0,0 +1,21 @@
+#include <iostream>
+using namespace std;
+
+class Context {
+public:
+	bool lookup( const char* paramName ) const {
+		if ( strcmp( _xName, paramName ) == 0
+	}
+
+private:
+	char* _xName;
+	char* _yName;
+	bool _xVlue;
+	bool _xVlue;
+}
+
+class BooleanExpression {
+public:
+	virtual bool evaluate( Context & ) = 0;
+};
+