--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/xmlpatterns/iterators/qinsertioniterator.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,128 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtXmlPatterns module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include "qinsertioniterator_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+InsertionIterator::InsertionIterator(const Item::Iterator::Ptr &target,
+                                     const xsInteger pos,
+                                     const Item::Iterator::Ptr &inserts)
+                                    : m_target(target),
+                                      m_insertPos(pos),
+                                      m_inserts(inserts),
+                                      m_position(0),
+                                      m_isInserting(pos == 1)
+{
+    Q_ASSERT(target);
+    Q_ASSERT(inserts);
+    Q_ASSERT(m_insertPos >= 1);
+}
+
+Item InsertionIterator::next()
+{
+    if(m_isInserting)
+    {
+        m_current = m_inserts->next();
+
+        if(m_current)
+        {
+            ++m_position;
+            return m_current;
+        }
+    }
+    else if(m_position == (m_insertPos - 1) && !m_isInserting)
+    { /* Entered only the first time insertion starts. */
+        m_isInserting = true;
+        return next();
+    }
+
+    ++m_position;
+    m_current = m_target->next();
+
+    if(m_current)
+        return m_current;
+    else if(m_inserts->position() == -1) /* We're at the end of the both iterators. */
+    {
+        m_position = -1;
+        m_current.reset();
+        return Item();
+    }
+
+    /* Insert the insertion iterator, since it's still left. */
+    Q_ASSERT(m_target->position() < m_insertPos);
+    m_isInserting = true;
+    m_current = m_inserts->next();
+
+    if(m_current)
+        return m_current;
+    else
+    {
+        /* m_current is already null, so no need to reset it. */
+        m_position = -1;
+        return Item();
+    }
+}
+
+xsInteger InsertionIterator::count()
+{
+    return m_target->count() + m_inserts->count();
+}
+
+Item InsertionIterator::current() const
+{
+    return m_current;
+}
+
+xsInteger InsertionIterator::position() const
+{
+    return m_position;
+}
+
+Item::Iterator::Ptr InsertionIterator::copy() const
+{
+    return Item::Iterator::Ptr(new InsertionIterator(m_target->copy(), m_insertPos, m_inserts->copy()));
+}
+
+QT_END_NAMESPACE