created INTEGER function on operand.

Operand.cpp

@@ -94,7 +94,13 @@ namespace jet {
       } else if(in.ifNextIgnoreCase("CONCAT")) {
 	 
       } else if(in.ifNextIgnoreCase("INTEGER")) {
-	 
+	 if(!in.ifNext("("))
+	   throw coreutils::Exception("Expecting ( for INTEGER parameters.");
+	 Operand parm1(in, tag);
+	 if(in.ifNext(")")) {
+	    string = parm1.string.asInteger();
+	 } else
+	   throw coreutils::Exception("Expecting ) at end of INTEGER expression.");	 	 	 	 
       } else if(in.ifNextIgnoreCase("ROUND")) {
 	 
       } else if(in.ifNextIgnoreCase("RANDOM")) {