diff -r 000000000000 -r 1918ee327afb src/xmlpatterns/functions/qsubstringfns.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/xmlpatterns/functions/qsubstringfns.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,173 @@
+/****************************************************************************
+**
+** 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 "qboolean_p.h"
+#include "qcommonvalues_p.h"
+#include "qliteral_p.h"
+#include "qatomicstring_p.h"
+
+#include "qsubstringfns_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+Item ContainsFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item op1(m_operands.first()->evaluateSingleton(context));
+    QString str1;
+
+    if(op1)
+        str1 = op1.stringValue();
+
+    const Item op2(m_operands.at(1)->evaluateSingleton(context));
+    QString str2;
+
+    if(op2)
+        str2 = op2.stringValue();
+
+    if(str2.isEmpty())
+        return CommonValues::BooleanTrue;
+
+    if(str1.isEmpty())
+        return CommonValues::BooleanFalse;
+
+    return Boolean::fromValue(str1.contains(str2, caseSensitivity()));
+}
+
+Item StartsWithFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item op1(m_operands.first()->evaluateSingleton(context));
+    QString str1;
+
+    if(op1)
+        str1 = op1.stringValue();
+
+    const Item op2(m_operands.at(1)->evaluateSingleton(context));
+    QString str2;
+
+    if(op2)
+        str2 = op2.stringValue();
+
+    if(str2.isEmpty())
+        return CommonValues::BooleanTrue;
+
+    if(str1.isEmpty())
+        return CommonValues::BooleanFalse;
+
+    return Boolean::fromValue(str1.startsWith(str2, caseSensitivity()));
+}
+
+Item EndsWithFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item op1(m_operands.first()->evaluateSingleton(context));
+    QString str1;
+
+    if(op1)
+        str1 = op1.stringValue();
+
+    const Item op2(m_operands.at(1)->evaluateSingleton(context));
+    QString str2;
+
+    if(op2)
+        str2 = op2.stringValue();
+
+    if(str2.isEmpty())
+        return CommonValues::BooleanTrue;
+
+    if(str1.isEmpty())
+        return CommonValues::BooleanFalse;
+
+    return Boolean::fromValue(str1.endsWith(str2, caseSensitivity()));
+}
+
+Item SubstringBeforeFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item op1(m_operands.first()->evaluateSingleton(context));
+    QString str1;
+
+    if(op1)
+        str1 = op1.stringValue();
+
+    const Item op2(m_operands.at(1)->evaluateSingleton(context));
+    QString str2;
+
+    if(op2)
+        str2 = op2.stringValue();
+
+    const int pos = str1.indexOf(str2);
+    if(pos == -1)
+        return CommonValues::EmptyString;
+
+    return AtomicString::fromValue(QString(str1.left(pos)));
+}
+
+Item SubstringAfterFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item op1(m_operands.first()->evaluateSingleton(context));
+    QString str1;
+
+    if(op1)
+        str1 = op1.stringValue();
+
+    const Item op2(m_operands.at(1)->evaluateSingleton(context));
+    QString str2;
+
+    if(op2)
+        str2 = op2.stringValue();
+
+    if(str2.isEmpty())
+    {
+        if(op1)
+            return op1;
+        else
+            return CommonValues::EmptyString;
+    }
+
+    const int pos = str1.indexOf(str2);
+
+    if(pos == -1)
+        return CommonValues::EmptyString;
+
+    return AtomicString::fromValue(QString(str1.right(str1.length() - (pos + str2.length()))));
+}
+
+QT_END_NAMESPACE