diff -r 666f914201fb -r 2fe1408b6811 epoc32/include/xmlengnamespace.h
--- a/epoc32/include/xmlengnamespace.h	Tue Nov 24 13:55:44 2009 +0000
+++ b/epoc32/include/xmlengnamespace.h	Tue Mar 16 16:12:26 2010 +0000
@@ -1,1 +1,161 @@
-xmlengnamespace.h
+/*
+* Copyright (c) 2004-2006 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
+* which accompanies this distribution, and is available
+* at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:       Namespace node functions
+*
+*/
+
+
+
+
+
+
+
+#ifndef XMLENGINE_NAMESPACE_H_INCLUDED
+#define XMLENGINE_NAMESPACE_H_INCLUDED
+
+#include "xmlengnode.h"
+
+/**
+ *   Represents existing namespace declaration in DOM tree <b>OR</b> namespace node returned
+ *   in RXmlEngNodeSet as a result of some XPath expression. 
+ *
+ *   All elements and attributes may have a namespace instance associated.
+ *   Once put in element, a namespace declaration (instance of TXmlEngNamespace) may be 
+ *   referred to by all attributes and descentants of the element (unless
+ *   prefix that this namespace-to-prefix binding uses is overriden somewhere below in the document tree)
+ *
+ *   <b>General rules of namespace handling:</b>
+ *
+ * - <b>NULL</b> prefix in namespace node means NO PREFIX. ""(empty string '\\0') can be used for specifying 
+ *   absense of prefix when setting it, however <b>NULL</b> will be stored and returned.
+ *
+ * - <b>NULL</b> value of namespace URI is legal only with <b>NULL</b> prefix and only met in 
+ *   undeclaration of namespace (<i>xmlns=""</i>). <b>""</b> (empty string) can be used too, however it 
+ *   will be returned as <b>NULL</b>.
+ *
+ * - <b>NULL</b> or <b>""</b> namespace <b>URI</b> with non-<b>NULL</b> prefix is illegal acording to the XML specification.
+ *
+ * - Namespace of a element is <b>default</b> if it is associated with some namespace declaration with <b>NULL</b> prefix.
+ *
+ * - Elements are never associated with namespace undeclarations (<b>xmlns=""</b>), instead, such elements have no
+ *   namespace declaration referred to. 
+ *
+ * - Attributes do not have <i>default</i> namespace. Even if it is effective at element scope,
+ *   default namespace declaration is not applied to element's attributes (according to the XML specification)
+ *
+ * - Namespace of a node (element or attribute) is <b>undefined</b> if no namespace declaration is
+ *   associated with it.
+ *
+ * - Node with <i>undefined</i> namespace is serialized as having no prefix. In general,
+ *   DOM API handles the complexity of namespace declaration handling and creates neccessary
+ *   namespace declarations and undeclares default namespace. However, some node-creation methods (e.g. TXmlEngElement::AddNewElementL()) 
+ *   do not ensure that created node with undefined namespace (thus, without a prefix) will 
+ *   actually treated after serialization as having some <i>default</i> namespace
+ *
+ *   @note
+ *   Namespace nodes that are result of XPath expression have following restrictions:
+ *       - they cannot be used as namespace definitions, because they are not part of
+ *         the DOM tree, but copies of existing namespace definitions.
+ *       - namespace prefix is not available because it is not mandated by DOM Level 3 XPath module API, 
+ *         so in returned copies of DOM tree, namespaces prefix strings are not preserved 
+ *         and Prefix() returns NULL.
+ * 
+ * @lib XmlEngineDOM.lib
+ * @since S60 v3.1
+ */
+class TXmlEngNamespace: public TXmlEngNode
+{
+  public:
+    /**
+     * Default constructor
+     *
+     * @since S60 v3.1
+     */
+	inline TXmlEngNamespace();
+
+    /**
+    /**
+     * Get namespace URI
+     *
+     * @since S60 v3.1
+     * @return Namespace URI string 
+     * @note "" is never returned - it is replaced with NULL
+     *
+     * For TXmlEngNamespace(NULL) or namespace undeclaration (xmlns=""), which are
+     * treatet as <i>undefined namespace</i> returns NULL,
+     * otherwise result is not a NULL string and not a "" (empty string).
+     */
+    IMPORT_C TPtrC8 Uri() const;
+
+    /**
+     * Get namespace prefix. 
+     *
+     * @since S60 v3.1
+     * @return prefix that is bound in the namespace declaration
+     * or NULL string for default namespace or if no binding exist
+     */
+    IMPORT_C TPtrC8 Prefix() const;
+
+    /**
+     * Check if namespace is default.
+     *
+     * @since S60 v3.1
+     * @return Whether it is a definition of default namespace
+     *    TRUE  -- is a default namespace (no prefix)
+     *    FALSE -- not a default namespace (bound to prefix) or empty TXmlEngNamespace(NULL) instance
+     */
+    IMPORT_C TBool IsDefault() const;
+
+	/**
+     * Check if namespace is undefined
+	 *
+     * @since S60 v3.1
+     * @return Whether the namespace is undefined
+     *
+     * A node's namespace is undefined if no namespace declaration associated with it.
+     * @note Same as TXmlEngNode::IsNull()
+     */
+    IMPORT_C TBool IsUndefined() const; 
+
+protected:
+    /**
+     *   Workaround to avoid misuse of TXmlEngNode::NamespaceUri() method, which should not be
+     *   applied to TXmlEngNamespace node. Since the name of the inherited method from TXmlEngNode
+     *   is too similar to TXmlEngNamespace::Uri(), NamespaceUri() is disabled for direct
+     *   use. 
+     *   If NamespaceUri() is called on the TXmlEngNamespace object that is downcasted to TXmlEngNode, then
+     *   NamespaceUri()'s result equals to result of Uri() method.
+     *
+     * @since S60 v3.1
+     * @return NULL
+     */
+	inline TPtrC8 NamespaceUri();
+
+protected:
+    /**
+     * Constructor
+     *
+     * @since S60 v3.1
+     * @param aPtr Namespace pointer
+     */
+	inline TXmlEngNamespace(void* aPtr);
+
+    friend class TXmlEngElement;
+    friend class TXmlEngNode;
+};
+
+#include "xmlengnamespace.inl"
+
+#endif /* XMLENGINE_NAMESPACE_H_INCLUDED */
+