--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/xml/XPathUtil.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2005 Frerich Raabe <raabe@kde.org>
+ * Copyright (C) 2006, 2009 Apple Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "XPathUtil.h"
+
+#if ENABLE(XPATH)
+
+#include "ContainerNode.h"
+
+namespace WebCore {
+namespace XPath {
+        
+bool isRootDomNode(Node* node)
+{
+    return node && !node->parentNode();
+}
+
+String stringValue(Node* node)
+{
+    switch (node->nodeType()) {
+        case Node::ATTRIBUTE_NODE:
+        case Node::PROCESSING_INSTRUCTION_NODE:
+        case Node::COMMENT_NODE:
+        case Node::TEXT_NODE:
+        case Node::CDATA_SECTION_NODE:
+        case Node::XPATH_NAMESPACE_NODE:
+            return node->nodeValue();
+        default:
+            if (isRootDomNode(node) || node->nodeType() == Node::ELEMENT_NODE) {
+                Vector<UChar> result;
+                result.reserveCapacity(1024);
+
+                for (Node* n = node->firstChild(); n; n = n->traverseNextNode(node)) {
+                    if (n->isTextNode()) {
+                        const String& nodeValue = n->nodeValue();
+                        result.append(nodeValue.characters(), nodeValue.length());
+                    }
+                }
+
+                return String::adopt(result);
+            }
+    }
+    
+    return String();
+}
+
+bool isValidContextNode(Node* node)
+{
+    if (!node)
+        return false;
+    switch (node->nodeType()) {
+        case Node::ATTRIBUTE_NODE:
+        case Node::CDATA_SECTION_NODE:
+        case Node::COMMENT_NODE:
+        case Node::DOCUMENT_NODE:
+        case Node::ELEMENT_NODE:
+        case Node::PROCESSING_INSTRUCTION_NODE:
+        case Node::XPATH_NAMESPACE_NODE:
+            return true;
+        case Node::DOCUMENT_FRAGMENT_NODE:
+        case Node::DOCUMENT_TYPE_NODE:
+        case Node::ENTITY_NODE:
+        case Node::ENTITY_REFERENCE_NODE:
+        case Node::NOTATION_NODE:
+            return false;
+        case Node::TEXT_NODE:
+            return !(node->parentNode() && node->parentNode()->isAttributeNode());
+    }
+    ASSERT_NOT_REACHED();
+    return false;
+}
+
+}
+}
+
+#endif // ENABLE(XPATH)