jodd-lagarto/src/main/java/jodd/lagarto/dom/LagartoDOMBuilderTagVisitor.java
protected Node findMatchingParentOpenTag(String tagName) {
		Node parent = parentNode;
		
		if (!rootNode.config.isCaseSensitive()) {
			tagName = tagName.toLowerCase();
		}
		
		while (parent != null) {
			String parentNodeName = parent.getNodeName();

			if (parentNodeName != null) {
				if (!rootNode.config.isCaseSensitive()) {
					parentNodeName = parentNodeName.toLowerCase();
				}
			}
			
			if (tagName.equals(parentNodeName)) {
				return parent;
			}
			parent = parent.getParentNode();
		}
		return null;
	}
protected Node findMatchingParentOpenTag(String tagName) {
		Node parent = parentNode;
		
		if (!rootNode.config.isCaseSensitive()) {
			tagName = tagName.toLowerCase();
		}
		
		while (parent != null) {
			String parentNodeName = parent.getNodeName();

			if (parentNodeName != null) {
				if (!rootNode.config.isCaseSensitive()) {
					parentNodeName = parentNodeName.toLowerCase();
				}
			}
			
			if (tagName.equals(parentNodeName)) {
				return parent;
			}
			parent = parent.getParentNode();
		}
		return null;
	}
Finds matching parent open tag or <code>null</code> if not found.