Some work on Expression and Operand.

__if.cpp

@@ -1,4 +1,3 @@
-
 #include "__if.h"
 #include "Exception.h"
 #include <iostream>
@@ -15,11 +14,12 @@ namespace jet {
 	   throw coreutils::Exception("Either value1 or expr can be specified but not both.");
 	 if(variableDefined("value2")) {
 	    if(variableDefined("type")) {
-	       result = "true";
+	       result = Expression(variables["expr"]);
 	    } else
 	      throw coreutils::Exception("type expected if value1 and value2 specified.");
 	 } else
 	   throw coreutils::Exception("value2 required if value1 specified.");
+	 std::cout << variables["value1"].str() << "' and value2 '" << variables["value2"].str() << "' comparison" << std::endl;
       } else if(variableDefined("expr")) {
    	   if(variableDefined("value2"))
 	        throw coreutils::Exception("value2 should not be specified with expr.");