1 files changed, 307 insertions, 0 deletions
diff --git a/parser/html/java/htmlparser/src/nu/validator/saxtree/Node.java b/parser/html/java/htmlparser/src/nu/validator/saxtree/Node.java
new file mode 100644
index 000000000..7aed83b75
--- /dev/null
+++ b/parser/html/java/htmlparser/src/nu/validator/saxtree/Node.java
@@ -0,0 +1,307 @@
+/*
+ * Copyright (c) 2007 Henri Sivonen
+ * Copyright (c) 2007-2009 Mozilla Foundation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a 
+ * copy of this software and associated documentation files (the "Software"), 
+ * to deal in the Software without restriction, including without limitation 
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+ * and/or sell copies of the Software, and to permit persons to whom the 
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in 
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+package nu.validator.saxtree;
+
+import java.util.List;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.Locator;
+import org.xml.sax.SAXException;
+
+/**
+ * The common node superclass.
+ * @version $Id$
+ * @author hsivonen
+ */
+public abstract class Node implements Locator {
+
+    /**
+     * The system id.
+     */
+    private final String systemId;
+    
+    /**
+     * The public id.
+     */
+    private final String publicId;
+    
+    /**
+     * The column.
+     */
+    private final int column;
+    
+    /**
+     * The line.
+     */
+    private final int line;
+
+    /**
+     * The next sibling.
+     */
+    private Node nextSibling = null;
+    
+    /**
+     * The parent.
+     */
+    private ParentNode parentNode = null;
+
+    /**
+     * The constructor.
+     * 
+     * @param locator the locator
+     */
+    Node(Locator locator) {
+        if (locator == null) {
+            this.systemId = null;
+            this.publicId = null;
+            this.column = -1;
+            this.line = -1;
+        } else {
+            this.systemId = locator.getSystemId();
+            this.publicId = locator.getPublicId();
+            this.column = locator.getColumnNumber();
+            this.line = locator.getLineNumber();
+        }
+    }
+    
+    /**
+     * 
+     * @see org.xml.sax.Locator#getColumnNumber()
+     */
+    public int getColumnNumber() {
+        return column;
+    }
+
+    /**
+     * 
+     * @see org.xml.sax.Locator#getLineNumber()
+     */
+    public int getLineNumber() {
+        return line;
+    }
+
+    /**
+     * 
+     * @see org.xml.sax.Locator#getPublicId()
+     */
+    public String getPublicId() {
+        return publicId;
+    }
+
+    /**
+     * 
+     * @see org.xml.sax.Locator#getSystemId()
+     */
+    public String getSystemId() {
+        return systemId;
+    }
+
+    /**
+     * Visit the node.
+     * 
+     * @param treeParser the visitor
+     * @throws SAXException if stuff goes wrong
+     */
+    abstract void visit(TreeParser treeParser) throws SAXException;
+    
+    /**
+     * Revisit the node.
+     * 
+     * @param treeParser the visitor
+     * @throws SAXException if stuff goes wrong
+     */
+    void revisit(TreeParser treeParser) throws SAXException {
+        return;
+    }
+    
+    /**
+     * Return the first child.
+     * @return the first child
+     */
+    public Node getFirstChild() {
+        return null;
+    }
+
+    /**
+     * Returns the nextSibling.
+     * 
+     * @return the nextSibling
+     */
+    public final Node getNextSibling() {
+        return nextSibling;
+    }
+    
+    /**
+     * Returns the previous sibling
+     * @return the previous sibling
+     */
+    public final Node getPreviousSibling() {
+        Node prev = null;
+        Node next = parentNode.getFirstChild();
+        for(;;) {
+            if (this == next) {
+                return prev;
+            }
+            prev = next;
+            next = next.nextSibling;
+        }
+    }
+
+    /**
+     * Sets the nextSibling.
+     * 
+     * @param nextSibling the nextSibling to set
+     */
+    void setNextSibling(Node nextSibling) {
+        this.nextSibling = nextSibling;
+    }
+    
+    
+    /**
+     * Returns the parentNode.
+     * 
+     * @return the parentNode
+     */
+    public final ParentNode getParentNode() {
+        return parentNode;
+    }
+    
+    /**
+     * Sets the parentNode.
+     * 
+     * @param parentNode the parentNode to set
+     */
+    void setParentNode(ParentNode parentNode) {
+        this.parentNode = parentNode;
+    }
+    
+    /**
+     * Return the node type.
+     * @return the node type
+     */
+    public abstract NodeType getNodeType();
+    
+    // Subclass-specific accessors that are hoisted here to 
+    // avoid casting.
+    
+    /**
+     * Detach this node from its parent.
+     */
+    public void detach() {
+        if (parentNode != null) {
+            parentNode.removeChild(this);
+            parentNode = null;
+        }
+    }
+    
+    /**
+     * Returns the name.
+     * 
+     * @return the name
+     */
+    public String getName() {
+        throw new UnsupportedOperationException();
+    }
+
+    /**
+     * Returns the publicIdentifier.
+     * 
+     * @return the publicIdentifier
+     */
+    public String getPublicIdentifier() {
+        throw new UnsupportedOperationException();
+    }
+
+    /**
+     * Returns the systemIdentifier.
+     * 
+     * @return the systemIdentifier
+     */
+    public String getSystemIdentifier() {
+        throw new UnsupportedOperationException();
+    }
+
+    /**
+     * Returns the attributes.
+     * 
+     * @return the attributes
+     */
+    public Attributes getAttributes() {
+        throw new UnsupportedOperationException();
+    }
+
+    /**
+     * Returns the localName.
+     * 
+     * @return the localName
+     */
+    public String getLocalName() {
+        throw new UnsupportedOperationException();
+    }
+
+    /**
+     * Returns the prefixMappings.
+     * 
+     * @return the prefixMappings
+     */
+    public List<PrefixMapping> getPrefixMappings() {
+        throw new UnsupportedOperationException();
+    }
+
+    /**
+     * Returns the qName.
+     * 
+     * @return the qName
+     */
+    public String getQName() {
+        throw new UnsupportedOperationException();
+    }
+
+    /**
+     * Returns the uri.
+     * 
+     * @return the uri
+     */
+    public String getUri() {
+        throw new UnsupportedOperationException();
+    }
+
+    /**
+     * Returns the data.
+     * 
+     * @return the data
+     */
+    public String getData() {
+        throw new UnsupportedOperationException();
+    }
+
+    /**
+     * Returns the target.
+     * 
+     * @return the target
+     */
+    public String getTarget() {
+        throw new UnsupportedOperationException();
+    }
+}