1 files changed, 69 insertions, 0 deletions
diff --git a/petascope/src/petascope/wcps/grammar/IndexExpr.java b/petascope/src/petascope/wcps/grammar/IndexExpr.java
new file mode 100644
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--- /dev/null
+++ b/petascope/src/petascope/wcps/grammar/IndexExpr.java
@@ -0,0 +1,69 @@
+/*
+ * This file is part of PetaScope.
+ *
+ * PetaScope is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * PetaScope is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with PetaScope. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * For more information please see <http://www.PetaScope.org>
+ * or contact Peter Baumann via <baumann@rasdaman.com>.
+ *
+ * Copyright 2009 Jacobs University Bremen, Peter Baumann.
+ */
+package petascope.wcps.grammar;
+
+/**
+ * IndexExpr
+ *
+ * @author Andrei Aiordachioaie
+ */
+public class IndexExpr implements IParseTreeNode {
+
+    String constant;
+    IParseTreeNode e1, e2;
+    String function;
+    String op;
+
+    public IndexExpr(String constant) {
+        function = "constant";
+        this.constant = constant;
+    }
+
+    public IndexExpr(String op, NumericScalarExpr e1) {
+        this.op = op;
+        this.e1 = e1;
+        function = "op1";
+    }
+
+    public IndexExpr(String op, IndexExpr e1, IndexExpr e2) {
+        this.op = op;
+        this.e1 = e1;
+        this.e2 = e2;
+        function = "op2";
+    }
+
+    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;
+    }
+}