Create Parserv3.h

Parserv3.h

@@ -0,0 +1,242 @@
+#include <string>       // std::string
+#include <iostream>     // std::cout
+#include <sstream>      // std::stringstream
+#include <vector>
+#include <string>
+
+using namespace std;
+
+
+class Relation 
+{
+	string name;
+	
+	public:
+	
+	string getName()
+	{
+		return name;
+	}
+}
+
+
+
+class Union
+{
+	string Un1;
+	string Un2;
+	
+	Union (string s1, string s2)
+	{
+		Un1 = s1;
+		Un2 = s2;
+	}
+	
+	string getUnion()
+	{
+		return "Union of " + Un1 + " and " + Un2;
+	}
+}
+
+class Product
+{
+	string Pr1;
+	string Pr2;
+	
+	Product(string s1, string s2)
+	{
+		Pr1 = s1;
+		Pr2 = s2;
+	}
+	
+	string getProduct()
+	{
+		return "Product of " + Pr1 + " and " + Pr2;
+	}
+}
+
+class Difference()
+{
+	string D1;
+	string D2;
+	
+	Difference(string s1, string s2)
+	{
+		D1 = s1;
+		D2 = s2;
+	}
+	
+	string getDifference()
+	{
+		return "Difference of " + D1 + " and " + D2;
+	}
+}
+
+class Rename()
+{
+	string newName;
+	string oldName;
+	
+	Rename(string s1, string s2)
+	{
+		newName = s1;
+		oldName = s2;
+	}
+	
+	string doRename()
+	{
+		return "Renaming " + oldName + " to " + newName;
+	}
+}
+
+class Projection()
+{
+	string newName;
+	string oldName;
+	
+	Rename(string s1, string s2)
+	{
+		newName = s1;
+		oldName = s2;
+	}
+	
+	string doRename()
+	{
+		return "Projecting " + oldName + " onto " + newName;
+	}
+}
+
+class Operand()
+{
+	string op;
+	
+	Operand(string str)
+	{
+		op = str;
+	}
+	
+	void setOperand(string str)
+	{
+		op = str;
+	}
+	
+	string getOperand()
+	{
+		return op;
+	}
+}
+
+class Op()
+{
+	string op;
+	
+	Op(string str)
+	{
+		op = str;
+	}
+	
+	void setOp(string str)
+	{
+		op = str;
+	}
+	
+	string getOp()
+	{
+		return op;
+	}
+}
+
+class Comparison()
+{
+	Op op;
+	Operand operand1;
+	Operand operand2;
+	
+	Comparison(string str1, string str2, string str3)
+	{
+		operand1.setOperand(str1);
+		op.setOp(str2);
+		operand2.setOperand(str3);
+	}
+	
+	void setComparison(string str1, string str2, string str3)
+	{
+		operand1.setOperand(str1);
+		op.setOp(str2);
+		operand2.setOperand(str3);
+	}
+	
+	string getComparison()
+	{
+		return op1.getOperand() + " " + op.getOp() + " " + op2.getOperand();
+	}
+}
+
+class Conjunction()
+{
+	string conj;
+	
+	Conjunction(string str)
+	{
+		conj = str;
+	}
+	
+	void setConjunction(string str)
+	{
+		conj = str;
+	}
+	
+	string getConjunction()
+	{
+		return conj;
+	}
+}
+
+class Condition()
+{
+	string cond;
+	
+	Condition(string str)
+	{
+		cond = str;
+	}
+	
+	void setCondition(string str)
+	{
+		cond = str;
+	}
+	
+	string getCondition()
+	{
+		return cond;
+	}
+}
+
+class Selection()
+{
+	string select;
+	
+	Selection(string str)
+	{
+		select = str;
+	}
+	
+	string getSelection()
+	{
+		return select;
+	}
+}
+
+class expr
+{
+	Relation r;
+	
+	selection
+    projection
+    renaming
+	Union
+	difference
+    product
+
+}
+