made parenthesis work in and out

git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@352529 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/poi/hssf/record/formula/ParenthesisPtg.java

@@ -72,6 +72,20 @@ public class ParenthesisPtg
     private final static int SIZE = 1;
     public final static byte sid  = 0x15;
    
+    public ParenthesisPtg()
+    {
+    }
+
+    public ParenthesisPtg(byte [] data, int offset)
+    {
+
+        // doesn't need anything
+    }
+    
+    protected ParenthesisPtg(String formula, int offset) {
+        
+    }
+
     
     public void writeBytes(byte [] array, int offset)
     {
@@ -103,16 +117,9 @@ public class ParenthesisPtg
         return "";
     }
         
-    public void manipulate(List source, List results, int pos) {
-    }
-    
     public String toFormulaString(String[] operands) {
         return "("+operands[0]+")";
     }    
         
-    public int getPrecedence() {
-        return 2;
-    }    
-    
 }
 

src/java/org/apache/poi/hssf/record/formula/Ptg.java

@@ -210,9 +210,9 @@ public abstract class Ptg
                 retval = new ValueReferencePtg(data, offset);
                 break;
 
-    //        case ParenthesisPtg.sid :
+            case ParenthesisPtg.sid :
-      //          retval = new ParenthesisPtg(data, offset);
+                retval = new ParenthesisPtg(data, offset);
-        //        break;
+                break;
 
             case ValueVariableFunctionPtg.sid :
                 retval = new ValueVariableFunctionPtg(data, offset);