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sefftinge 2008-09-22 12:45:33 +00:00
parent d9dab783c8
commit 9e5d55916c
1 changed files with 14 additions and 0 deletions
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14
plugins/org.eclipse.xtext/src/org/eclipse/xtext/parsetree/NodeUtil.java
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@ -120,5 +120,19 @@ public class NodeUtil {
}
System.out.println("} (" + node.getOffset() + ", " + node.getLength() + ")");
}
public static AbstractNode findLeafNodeAtOffset(CompositeNode parseTreeRootNode, int offset) {
for (AbstractNode node : parseTreeRootNode.getChildren()) {
if (node.getOffset() + node.getLength() >= offset) {
if (node.getOffset() <= offset) {
if (node instanceof LeafNode)
return (LeafNode) node;
else if (node instanceof CompositeNode)
return findLeafNodeAtOffset((CompositeNode) node, offset);
}
}
}
return null;
}
}