Initial commit

1 files changed, 50 insertions, 0 deletions

diff --git a/src/grammar/IndexExpr.java b/src/grammar/IndexExpr.java
new file mode 100644
index 0000000..38ba6d4
--- /dev/null
+++ b/src/grammar/IndexExpr.java
@@ -0,0 +1,50 @@
+package grammar;
+
+/** IndexExpr
+ *
+ * @author Andrei Aiordachioaie
+ */
+public class IndexExpr implements IParseTreeNode
+{
+
+    String op;
+    IParseTreeNode e1, e2;
+    String constant;
+    String function;
+    
+    public IndexExpr(String op, IndexExpr e1, IndexExpr e2)
+    {
+        this.op = op;
+        this.e1 = e1;
+        this.e2 = e2;
+        function = "op2";
+    }
+
+    public IndexExpr(String constant)
+    {
+        function = "constant";
+        this.constant = constant;
+    }
+
+    public IndexExpr(String op, NumericScalarExpr e1)
+    {
+        this.op = op;
+        this.e1 = e1;
+        function = "op1";
+    }
+
+    public String toXML()
+    {
+        String result = "";
+        String tag1 = "<" + op + ">", tag2 = "</" + op + ">";
+        if (function.equals("constant"))
+            result = "<numericConstant>" + constant + "</numericConstant>";
+        else if (function.equals("op1"))
+            result = tag1 + e1.toXML() + tag2;
+        else if (function.equals("op2"))
+            result = tag1 + e1.toXML() + e2.toXML() + tag2;
+        
+        return result;
+    }
+    
+}