Changeset 12 in default for trunk/de.ugoe.cs.swe.bnftools.ebnf.ui/src/de/ugoe/cs/swe/bnftools/visitor/EbnfVisitor.java

Timestamp:

10/22/10 15:45:35 (14 years ago)

Author:

zeiss

Message:

 

File:

• trunk/de.ugoe.cs.swe.bnftools.ebnf.ui/src/de/ugoe/cs/swe/bnftools/visitor/EbnfVisitor.java (modified) (4 diffs)

trunk/de.ugoe.cs.swe.bnftools.ebnf.ui/src/de/ugoe/cs/swe/bnftools/visitor/EbnfVisitor.java

@@ -1 +1 @@
 package de.ugoe.cs.swe.bnftools.visitor;
 
+import java.util.Stack;
+
 import org.eclipse.emf.ecore.EObject;
-
-import com.sun.xml.internal.bind.v2.schemagen.xmlschema.Import;
 
 import de.ugoe.cs.swe.bnftools.ebnf.Atom;
@@ -12 +12 @@
 import de.ugoe.cs.swe.bnftools.ebnf.GroupedSequence;
 import de.ugoe.cs.swe.bnftools.ebnf.HookCombinator;
+import de.ugoe.cs.swe.bnftools.ebnf.Import;
 import de.ugoe.cs.swe.bnftools.ebnf.MergeRule;
 import de.ugoe.cs.swe.bnftools.ebnf.OptionalSequence;
@@ -26 +27 @@
         
         protected EObject rootNode = null;
-
+        protected Stack<Boolean> lastElementStack = new Stack<Boolean>();
+        
         public EbnfVisitor() {
         }
@@ -46 +48 @@
 
         private void acceptInner(EObject node) {
+                Boolean lastElement = false;
+                if (node.eContents().size() == 0)
+                        lastElement = true;
+                lastElementStack.push(lastElement);             
                 for (int i=0; i < node.eContents().size(); i++) {
                         EObject currentNode = (EObject) node.eContents().get(i);
+                        if (i == node.eContents().size()-1) {
+                                lastElement = true;
+                                lastElementStack.pop();
+                                lastElementStack.push(lastElement);
+                        }
                         dispatcherBefore(currentNode);
                         acceptInner(currentNode);
                         dispatcherAfter(currentNode);
                 }
+                lastElementStack.pop();
+        }
+        
+        protected boolean isLastElement() {
+                return lastElementStack.peek();
         }