Initial import from the monolithic Qt.

This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:

http://qt.gitorious.org/qt/pages/GitIntroductionWithQt

If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

87 files changed, 14675 insertions, 0 deletions

diff --git a/src/xmlpatterns/data/data.pri b/src/xmlpatterns/data/data.pri
new file mode 100644
index 0000000..ccfed42
--- /dev/null
+++ b/src/xmlpatterns/data/data.pri
@@ -0,0 +1,82 @@
+HEADERS += $$PWD/qabstractdatetime_p.h              \
+           $$PWD/qabstractduration_p.h              \
+           $$PWD/qabstractfloatcasters_p.h          \
+           $$PWD/qabstractfloatmathematician_p.h    \
+           $$PWD/qabstractfloat_p.h                 \
+           $$PWD/qanyuri_p.h                        \
+           $$PWD/qatomiccaster_p.h                  \
+           $$PWD/qatomiccasters_p.h                 \
+           $$PWD/qatomiccomparator_p.h              \
+           $$PWD/qatomiccomparators_p.h             \
+           $$PWD/qatomicmathematician_p.h           \
+           $$PWD/qatomicmathematicians_p.h          \
+           $$PWD/qatomicstring_p.h                  \
+           $$PWD/qbase64binary_p.h                  \
+           $$PWD/qboolean_p.h                       \
+           $$PWD/qcommonvalues_p.h                  \
+           $$PWD/qcomparisonfactory_p.h             \
+           $$PWD/qdate_p.h                          \
+           $$PWD/qdaytimeduration_p.h               \
+           $$PWD/qdecimal_p.h                       \
+           $$PWD/qderivedinteger_p.h                \
+           $$PWD/qderivedstring_p.h                 \
+           $$PWD/qduration_p.h                      \
+           $$PWD/qgday_p.h                          \
+           $$PWD/qgmonthday_p.h                     \
+           $$PWD/qgmonth_p.h                        \
+           $$PWD/qgyearmonth_p.h                    \
+           $$PWD/qgyear_p.h                         \
+           $$PWD/qhexbinary_p.h                     \
+           $$PWD/qinteger_p.h                       \
+           $$PWD/qitem_p.h                          \
+           $$PWD/qnodebuilder_p.h                   \
+           $$PWD/qqnamevalue_p.h                    \
+           $$PWD/qresourceloader_p.h                \
+           $$PWD/qschemadatetime_p.h                \
+           $$PWD/qschemanumeric_p.h                 \
+           $$PWD/qschematime_p.h                    \
+           $$PWD/qsorttuple.cpp                     \
+           $$PWD/quntypedatomic_p.h                 \
+           $$PWD/qvalidationerror_p.h               \
+           $$PWD/qvaluefactory_p.h                  \
+           $$PWD/qyearmonthduration_p.h
+
+SOURCES += $$PWD/qabstractdatetime.cpp        \
+           $$PWD/qabstractduration.cpp        \
+           $$PWD/qanyuri.cpp                  \
+           $$PWD/qatomiccaster.cpp            \
+           $$PWD/qatomiccasters.cpp           \
+           $$PWD/qatomiccomparator.cpp        \
+           $$PWD/qatomiccomparators.cpp       \
+           $$PWD/qatomicmathematician.cpp     \
+           $$PWD/qatomicmathematicians.cpp    \
+           $$PWD/qatomicstring.cpp            \
+           $$PWD/qatomicvalue.cpp             \
+           $$PWD/qbase64binary.cpp            \
+           $$PWD/qboolean.cpp                 \
+           $$PWD/qcommonvalues.cpp            \
+           $$PWD/qcomparisonfactory.cpp       \
+           $$PWD/qdate.cpp                    \
+           $$PWD/qdaytimeduration.cpp         \
+           $$PWD/qdecimal.cpp                 \
+           $$PWD/qduration.cpp                \
+           $$PWD/qgday.cpp                    \
+           $$PWD/qgmonth.cpp                  \
+           $$PWD/qgmonthday.cpp               \
+           $$PWD/qgyear.cpp                   \
+           $$PWD/qgyearmonth.cpp              \
+           $$PWD/qhexbinary.cpp               \
+           $$PWD/qinteger.cpp                 \
+           $$PWD/qitem.cpp                    \
+           $$PWD/qnodebuilder.cpp             \
+           $$PWD/qnodemodel.cpp               \
+           $$PWD/qqnamevalue.cpp              \
+           $$PWD/qresourceloader.cpp          \
+           $$PWD/qschemadatetime.cpp          \
+           $$PWD/qschemanumeric.cpp           \
+           $$PWD/qschematime.cpp              \
+           $$PWD/qsorttuple.cpp               \
+           $$PWD/quntypedatomic.cpp           \
+           $$PWD/qvalidationerror.cpp         \
+           $$PWD/qvaluefactory.cpp            \
+           $$PWD/qyearmonthduration.cpp
diff --git a/src/xmlpatterns/data/qabstractdatetime.cpp b/src/xmlpatterns/data/qabstractdatetime.cpp
new file mode 100644
index 0000000..900a516
--- /dev/null
+++ b/src/xmlpatterns/data/qabstractdatetime.cpp
@@ -0,0 +1,400 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 <QStringList>
+
+#include "qbuiltintypes_p.h"
+#include "qitem_p.h"
+#include "qpatternistlocale_p.h"
+#include "qvalidationerror_p.h"
+
+#include "qabstractdatetime_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+AbstractDateTime::AbstractDateTime(const QDateTime &dateTime) : m_dateTime(dateTime)
+{
+    Q_ASSERT(dateTime.isValid());
+}
+
+#define badData(msg)        errorMessage = ValidationError::createError(msg); return QDateTime()
+#define getCapt(sym)        ((captTable.sym == -1) ? QString() : capts.at(captTable.sym))
+#define getSafeCapt(sym)    ((captTable.sym == -1) ? QString() : capts.value(captTable.sym))
+
+QDateTime AbstractDateTime::create(AtomicValue::Ptr &errorMessage,
+                                   const QString &lexicalSource,
+                                   const CaptureTable &captTable)
+{
+    QRegExp myExp(captTable.regExp);
+
+    if(!myExp.exactMatch(lexicalSource))
+    {
+        badData(QString());
+    }
+
+    const QStringList capts(myExp.capturedTexts());
+    const QString yearStr(getCapt(year));
+
+    if(yearStr.size() > 4 && yearStr.at(0) == QLatin1Char('0'))
+    {
+        badData(QtXmlPatterns::tr("Year %1 is invalid because it begins with %2.")
+                .arg(formatData(yearStr)).arg(formatData("0")));
+    }
+
+    /* If the strings are empty, load default values which are
+     * guranteed to pass the validness tests. */
+    const QString monthStr(getCapt(month));
+    const QString dayStr(getCapt(day));
+    YearProperty year = yearStr.isEmpty() ? DefaultYear : yearStr.toInt();
+    if(getCapt(yearSign) == QChar::fromLatin1('-'))
+        year = -year;
+    const MonthProperty month = monthStr.isEmpty() ? DefaultMonth : monthStr.toInt();
+    const MonthProperty day = dayStr.isEmpty() ? DefaultDay : dayStr.toInt();
+
+    if(!QDate::isValid(year, month, day))
+    {
+        /* Try to give an intelligent message. */
+        if(day > 31 || day < 1)
+        {
+            badData(QtXmlPatterns::tr("Day %1 is outside the range %2..%3.")
+                    .arg(formatData(QString::number(day)))
+                    .arg(formatData("01"))
+                    .arg(formatData("31")));
+        }
+        else if(month > 12 || month < -12 || month == 0)
+        {
+            badData(QtXmlPatterns::tr("Month %1 is outside the range %2..%3.")
+                    .arg(month)
+                    .arg(formatData("01"))
+                    .arg(formatData("12")));
+
+        }
+        else if(QDate::isValid(DefaultYear, month, day))
+        {
+            /* We can't use the badData() macro here because we need a different
+             * error code: FODT0001 instead of FORG0001. */
+            errorMessage = ValidationError::createError(QtXmlPatterns::tr(
+                               "Overflow: Can't represent date %1.")
+                               .arg(formatData(QLatin1String("%1-%2-%3"))
+                                    .arg(year).arg(month).arg(day)),
+                               ReportContext::FODT0001);
+            return QDateTime();
+        }
+        else
+        {
+            badData(QtXmlPatterns::tr("Day %1 is invalid for month %2.")
+                         .arg(formatData(QString::number(day)))
+                         .arg(formatData(QString::number(month))));
+        }
+    }
+
+    /* Parse the zone offset. */
+    ZoneOffsetParseResult zoResult;
+    const ZOTotal offset = parseZoneOffset(zoResult, capts, captTable);
+
+    if(zoResult == Error)
+    {
+        errorMessage = ValidationError::createError();
+        /* We encountered an error, so stop processing. */
+        return QDateTime();
+    }
+
+    QDate date(year, month, day);
+
+    /* Only deal with time if time is needed. */
+    if(captTable.hour == -1)
+    {
+        QDateTime result(date);
+        setUtcOffset(result, zoResult, offset);
+        return result;
+    }
+    else
+    {
+        /* Now, it's time for the time-part.
+         *
+         * If the strings are empty, toInt() will return 0, which
+         * in all cases is valid properties. */
+        const QString hourStr(getCapt(hour));
+        const QString minutesStr(getCapt(minutes));
+        const QString secondsStr(getCapt(seconds));
+        HourProperty hour = hourStr.toInt();
+        const MinuteProperty mins = minutesStr.toInt();
+        const SecondProperty secs = secondsStr.toInt();
+
+        QString msecondsStr(getSafeCapt(mseconds));
+        if(!msecondsStr.isEmpty())
+            msecondsStr = msecondsStr.leftJustified(3, QLatin1Char('0'), true);
+        const MSecondProperty msecs = msecondsStr.toInt();
+
+        if(hour == 24)
+        {
+            /* 24:00:00.00 is an invalid time for QTime, so handle it here. */
+            if(mins != 0 || secs != 0 || msecs != 0)
+            {
+                badData(QtXmlPatterns::tr("Time 24:%1:%2.%3 is invalid. "
+                                          "Hour is 24, but minutes, seconds, "
+                                          "and milliseconds are not all 0; ")
+                        .arg(mins).arg(secs).arg(msecs));
+            }
+            else
+            {
+                hour = 0;
+                date = date.addDays(1);
+            }
+        }
+        else if(!QTime::isValid(hour, mins, secs, msecs))
+        {
+            badData(QtXmlPatterns::tr("Time %1:%2:%3.%4 is invalid.")
+                         .arg(hour).arg(mins).arg(secs).arg(msecs));
+        }
+
+        const QTime time(hour, mins, secs, msecs);
+        Q_ASSERT(time.isValid());
+
+        QDateTime result(date, time);
+        setUtcOffset(result, zoResult, offset);
+        return result;
+    }
+}
+
+ZOTotal AbstractDateTime::parseZoneOffset(ZoneOffsetParseResult &result,
+                                          const QStringList &capts,
+                                          const CaptureTable &captTable)
+{
+    const QString zoneOffsetSignStr(getCapt(zoneOffsetSign));
+
+    if(zoneOffsetSignStr.isEmpty())
+    {
+        const QString zoneOffsetUTCStr(getCapt(zoneOffsetUTCSymbol));
+        Q_ASSERT(zoneOffsetUTCStr.isEmpty() || zoneOffsetUTCStr == QLatin1String("Z"));
+
+        if(zoneOffsetUTCStr.isEmpty())
+            result = LocalTime;
+        else
+            result = UTC;
+
+        return 0;
+    }
+
+    Q_ASSERT(zoneOffsetSignStr == QLatin1String("-") || zoneOffsetSignStr == QLatin1String("+"));
+
+    const QString zoneOffsetHourStr(getCapt(zoneOffsetHour));
+    Q_ASSERT(!zoneOffsetHourStr.isEmpty());
+    const ZOHourProperty zoHour = zoneOffsetHourStr.toInt();
+
+    if(zoHour > 14 || zoHour < -14)
+    {
+        result = Error;
+        return 0;
+        /*
+        badZOData(QtXmlPatterns::tr("%1 it is not a valid hour property in a zone offset. "
+                       "It must be less than or equal to 14.").arg(zoHour));
+                       */
+    }
+
+    const QString zoneOffsetMinuteStr(getCapt(zoneOffsetMinute));
+    Q_ASSERT(!zoneOffsetMinuteStr.isEmpty());
+    const ZOHourProperty zoMins = zoneOffsetMinuteStr.toInt();
+
+    if(zoHour == 14 && zoMins != 0)
+    {
+        /*
+        badZOData(QtXmlPatterns::tr("When the hour property in a zone offset is 14, the minute property "
+                       "must be 0, not %1.").arg(zoMins));
+                       */
+        result = Error;
+        return 0;
+    }
+    else if(zoMins > 59 || zoMins < -59)
+    {
+        /*
+        badZOData(QtXmlPatterns::tr("The minute property in a zone offset cannot be larger than 59. "
+                       "%1 is therefore invalid.").arg(zoMins));
+                       */
+        result = Error;
+        return 0;
+    }
+
+    if(zoHour == 0 && zoMins == 0) /* "-00:00" and "+00:00" is equal to 'Z'. */
+    {
+        result = UTC;
+        return 0;
+    }
+    else
+    {
+        ZOTotal zoneOffset = (zoHour * 60 + zoMins) * 60;
+
+        if(zoneOffsetSignStr == QChar::fromLatin1('-'))
+            zoneOffset = -zoneOffset;
+
+        result = Offset;
+        return zoneOffset;
+    }
+}
+//#undef badZOData
+
+void AbstractDateTime::setUtcOffset(QDateTime &result,
+                                     const ZoneOffsetParseResult zoResult,
+                                     const int zoOffset)
+{
+    if(zoResult == UTC)
+        result.setTimeSpec(Qt::UTC);
+    else if(zoResult == LocalTime)
+        result.setTimeSpec(Qt::LocalTime);
+    else
+    {
+        Q_ASSERT(zoResult == Offset);
+        result.setUtcOffset(zoOffset);
+    }
+}
+
+#undef badData
+#undef getCapt
+#undef getSafeCapt
+
+bool AbstractDateTime::isRangeValid(const QDate &date,
+                                    QString &message)
+{
+    if(date.isValid())
+        return true;
+    else
+    {
+        message = QtXmlPatterns::tr("Overflow: Date can't be represented.");
+        return false;
+    }
+}
+
+QString AbstractDateTime::dateToString() const
+{
+    return m_dateTime.toString(QLatin1String("yyyy-MM-dd"));
+}
+
+QString AbstractDateTime::serializeMSeconds(const MSecondProperty mseconds)
+{
+    QString retval;
+    retval.append(QLatin1Char('.'));
+    int div = 100;
+    MSecondProperty msecs = mseconds;
+
+    while(msecs > 0)
+    {
+        int d = msecs / div;
+        retval.append(QLatin1Char(d + '0'));
+        msecs = msecs % div;
+        div = div / 10;
+    }
+
+    return retval;
+}
+
+QString AbstractDateTime::timeToString() const
+{
+    QString base(m_dateTime.toString(QLatin1String("hh:mm:ss")));
+    const MSecondProperty msecs = m_dateTime.time().msec();
+
+    if(msecs)
+        base.append(serializeMSeconds(msecs));
+
+    return base;
+}
+
+QString AbstractDateTime::zoneOffsetToString() const
+{
+    switch(m_dateTime.timeSpec())
+    {
+        case Qt::LocalTime:
+            return QString();
+        case Qt::UTC:
+            return QLatin1String("Z");
+        default:
+        {
+            Q_ASSERT(m_dateTime.timeSpec() == Qt::OffsetFromUTC);
+
+            const int zoneOffset = m_dateTime.utcOffset();
+            Q_ASSERT(zoneOffset != 0);
+            const int posZoneOffset = qAbs(zoneOffset);
+
+            /* zoneOffset is in seconds. */
+            const int hours = posZoneOffset/(60 * 60);
+            const int minutes = (posZoneOffset % (60 * 60)) / 60;
+
+            QString result;
+            result.reserve(6);
+
+            result.append(zoneOffset < 0 ? QLatin1Char('-') : QLatin1Char('+'));
+            result.append(QString::number(hours).rightJustified(2, QLatin1Char('0')));
+            result.append(QLatin1Char(':'));
+            result.append(QString::number(minutes).rightJustified(2, QLatin1Char('0')));
+            return result;
+        }
+    }
+}
+
+void AbstractDateTime::copyTimeSpec(const QDateTime &from,
+                                    QDateTime &to)
+{
+    switch(from.timeSpec())
+    {
+        case Qt::UTC:
+        /* Fallthrough. */
+        case Qt::LocalTime:
+        {
+            to.setTimeSpec(from.timeSpec());
+            return;
+        }
+        case Qt::OffsetFromUTC:
+        {
+            to.setUtcOffset(from.utcOffset());
+            Q_ASSERT(to.timeSpec() == Qt::OffsetFromUTC);
+            return;
+        }
+    }
+}
+
+Item AbstractDateTime::fromValue(const QDateTime &) const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO,
+               "Calling AbstractDateTime::fromDateTime() makes no sense.");
+    return Item();
+}
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qabstractdatetime_p.h b/src/xmlpatterns/data/qabstractdatetime_p.h
new file mode 100644
index 0000000..3ad169b
--- /dev/null
+++ b/src/xmlpatterns/data/qabstractdatetime_p.h
@@ -0,0 +1,261 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_AbstractDateTime_H
+#define Patternist_AbstractDateTime_H
+
+#include <QDateTime>
+#include <QRegExp>
+
+#include "qitem_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Base class for classes implementing values related to time, date or both.
+     *
+     * @see <a href="http://www.w3.org/TR/xmlschema-2/#dateTime">XML Schema
+     * Part 2: Datatypes Second Edition, 3.2.7 dateTime</a>
+     * @see <a href="http://www.w3.org/TR/xpath-datamodel/#dates-and-times">XQuery
+     * 1.0 and XPath 2.0 Data Model (XDM), 3.3.2 Dates and Times</a>
+     * @see <a href="http://www.cl.cam.ac.uk/~mgk25/iso-time.html">A summary of
+     * the international standard date and time notation, Markus Kuhn</a>
+     * @see <a href="http://en.wikipedia.org/wiki/Iso_date">ISO 8601,
+     * From Wikipedia, the free encyclopedia</a>
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class AbstractDateTime : public AtomicValue
+    {
+    public:
+        typedef QExplicitlySharedDataPointer<AbstractDateTime> Ptr;
+
+        AbstractDateTime(const QDateTime &dateTime);
+
+        enum
+        {
+            DefaultYear     = 2000,
+            DefaultMonth    = 1,
+            DefaultDay      = 1
+        };
+
+        /**
+         * @returns the date time this class represents, as a QDateTime.
+         */
+        inline const QDateTime &toDateTime() const
+        {
+            return m_dateTime;
+        }
+
+
+        /**
+         * @short Acts as a mapping table for AbstractDateTime::create()
+         * and describes where certain fields in a QRegExp pattern can be found
+         * for a particular W3C XML Schema date/time type.
+         *
+         * @author Frans Englich <frans.englich@nokia.com>
+         * @ingroup Patternist_xdm
+         */
+        class CaptureTable
+        {
+        public:
+            CaptureTable(const QRegExp &exp,
+                         const qint8 zoneOffsetSignP,
+                         const qint8 zoneOffsetHourP,
+                         const qint8 zoneOffsetMinuteP,
+                         const qint8 zoneOffsetUTCSymbolP,
+                         const qint8 yearP,
+                         const qint8 monthP = -1,
+                         const qint8 dayP = -1,
+                         const qint8 hourP = -1,
+                         const qint8 minutesP = -1,
+                         const qint8 secondsP = -1,
+                         const qint8 msecondsP = -1,
+                         const qint8 yearSignP = -1) : regExp(exp)
+                                                     , zoneOffsetSign(zoneOffsetSignP)
+                                                     , zoneOffsetHour(zoneOffsetHourP)
+                                                     , zoneOffsetMinute(zoneOffsetMinuteP)
+                                                     , zoneOffsetUTCSymbol(zoneOffsetUTCSymbolP)
+                                                     , year(yearP)
+                                                     , month(monthP)
+                                                     , day(dayP)
+                                                     , hour(hourP)
+                                                     , minutes(minutesP)
+                                                     , seconds(secondsP)
+                                                     , mseconds(msecondsP)
+                                                     , yearSign(yearSignP)
+            {
+                Q_ASSERT(exp.isValid());
+            }
+
+            const QRegExp regExp;
+            const qint8 zoneOffsetSign;
+            const qint8 zoneOffsetHour;
+            const qint8 zoneOffsetMinute;
+            const qint8 zoneOffsetUTCSymbol;
+            const qint8 year;
+            const qint8 month;
+            const qint8 day;
+            const qint8 hour;
+            const qint8 minutes;
+            const qint8 seconds;
+            const qint8 mseconds;
+            const qint8 yearSign;
+
+        private:
+            Q_DISABLE_COPY(CaptureTable)
+        };
+
+        /**
+         * @returns m_dateTime's time part converted to string. This is for
+         * example "12" or "01.023".
+         */
+        QString timeToString() const;
+
+        /**
+         * @returns m_dateTime's date part converted to string. This is for
+         * example "2004-05-12" or "-2004-05-12".
+         */
+        QString dateToString() const;
+
+        /**
+         * Serializes the milli seconds @p msecs into a string representation. For
+         * example, if @p msecs is 1, ".001" is returned; if @p msecs is 100 then
+         * is ".1" returned.
+         */
+        static QString serializeMSeconds(const MSecondProperty msecs);
+
+        /**
+         * A factory function for creating instances that are of the dynamic
+         * type of this class, that represents @p dt.
+         *
+         * The default implementation performs an assert() call. This function
+         * is not pure virtual because all sub-classes do not use it.
+         */
+        virtual Item fromValue(const QDateTime &dt) const;
+
+        /**
+         * Determines whether @p dt is a date-time that can be represented,
+         * and isn't too early or too late. If it is valid, @c true is returned. Otherwise,
+         * @c false is returned and @p message is set to contain a translated message for
+         * human consumption, describing the error.
+         */
+        static bool isRangeValid(const QDate &date,
+                                 QString &message);
+
+    protected:
+
+        /**
+         * @returns m_dateTime' zone offset converted to string, as per the
+         * the W3C XML Schema types. This is for
+         * example "Z" or "+12.00"(depending on m_dateTime).
+         */
+        QString zoneOffsetToString() const;
+
+        static QDateTime create(AtomicValue::Ptr &errorMessage,
+                                const QString &lexicalSource,
+                                const CaptureTable &captTable);
+
+        /**
+         * @short Makes the QDateTime::timeSpec() and QDateTime::zoneOffset()
+         * of @p ot * consistent to @p from.
+         */
+        static void copyTimeSpec(const QDateTime &from,
+                                 QDateTime &to);
+
+        const QDateTime m_dateTime;
+
+    private:
+        enum ZoneOffsetParseResult
+        {
+            /**
+             * syntax or logical error was encountered.
+             */
+            Error,
+            /**
+             * It's a valid offset from UTC.
+             */
+            Offset,
+
+            /**
+             * No zone offset was specified, it's an implementation defined zone offset.
+             */
+            LocalTime,
+            UTC
+        };
+
+        /**
+         * @short Parses the zone offset. All types use zone offsets.
+         *
+         * If result is set to Offset, the offset is returned, otherwise
+         * the return value is undefined.
+         *
+         * The offset is in seconds.
+         */
+        static ZOTotal parseZoneOffset(ZoneOffsetParseResult &result,
+                                       const QStringList &capts,
+                                       const CaptureTable &captTable);
+
+        static inline void setUtcOffset(QDateTime &result,
+                                        const ZoneOffsetParseResult zoResult,
+                                        const int zoOffset);
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qabstractduration.cpp b/src/xmlpatterns/data/qabstractduration.cpp
new file mode 100644
index 0000000..6bd46c4
--- /dev/null
+++ b/src/xmlpatterns/data/qabstractduration.cpp
@@ -0,0 +1,235 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 <QStringList>
+
+#include "qbuiltintypes_p.h"
+#include "qpatternistlocale_p.h"
+#include "qvalidationerror_p.h"
+
+#include "qabstractduration_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+AbstractDuration::AbstractDuration(const bool isPos) : m_isPositive(isPos)
+{
+}
+
+#define error(msg) return ValidationError::createError(msg);
+#define getCapt(sym)        ((captTable.sym == -1) ? QString() : capts.at(captTable.sym))
+
+AtomicValue::Ptr AbstractDuration::create(const CaptureTable &captTable,
+                                          const QString &lexical,
+                                          bool *isPositive,
+                                          YearProperty *years,
+                                          MonthProperty *months,
+                                          DayCountProperty *days,
+                                          HourProperty *hours,
+                                          MinuteProperty *minutes,
+                                          SecondProperty *seconds,
+                                          MSecondProperty *mseconds)
+{
+    /* We don't directly write into the arguments(eg @p years) but uses these
+     * because the arguments are intended for normalized values, and therefore
+     * can cause overflows. */
+    MonthCountProperty monthCount = 0;
+    MinuteCountProperty minCount = 0;
+    HourCountProperty hourCount = 0;
+    SecondCountProperty secCount = 0;
+
+    Q_ASSERT(isPositive);
+    QRegExp myExp(captTable.regExp); /* Copy, in order to stay thread safe. */
+
+    if(!myExp.exactMatch(lexical))
+    {
+        error(QString());
+    }
+
+    const QStringList capts(myExp.capturedTexts());
+
+
+    if(days)
+    {
+        if(getCapt(tDelimiter).isEmpty())
+        {
+            if((years && getCapt(year).isEmpty() && getCapt(month).isEmpty() && getCapt(day).isEmpty())
+                ||
+               (!years && getCapt(day).isEmpty()))
+            {
+                error(QtXmlPatterns::tr("At least one component must be present."));
+            }
+        }
+        else if(getCapt(hour).isEmpty() &&
+                getCapt(minutes).isEmpty() &&
+                getCapt(seconds).isEmpty() &&
+                getCapt(mseconds).isEmpty())
+        {
+            error(QtXmlPatterns::tr("At least one time component must appear "
+                                    "after the %1-delimiter.")
+                                    .arg(formatKeyword("T")));
+        }
+    }
+    else if(getCapt(year).isEmpty() && getCapt(month).isEmpty()) /* This checks xs:yearMonthDuration. */
+    {
+        error(QtXmlPatterns::tr("At least one component must be present."));
+    }
+
+    /* If we got no '-', we are positive. */
+    *isPositive = capts.at(1).isEmpty();
+
+    if(days)
+    {
+        Q_ASSERT(hours);
+        Q_ASSERT(minutes);
+        Q_ASSERT(seconds);
+        Q_ASSERT(mseconds);
+
+        *days = getCapt(day).toInt();
+        hourCount = getCapt(hour).toInt();
+        minCount = getCapt(minutes).toInt();
+        secCount = getCapt(seconds).toInt();
+
+        const QString msecondsStr(getCapt(mseconds));
+        if(!msecondsStr.isEmpty())
+            *mseconds = msecondsStr.leftJustified(3, QLatin1Char('0')).toInt();
+        else
+            *mseconds = msecondsStr.toInt();
+
+        if(secCount > 59)
+        {
+            minCount += secCount / 60;
+            *seconds = secCount % 60;
+        }
+        else
+            *seconds = secCount;
+
+        if(minCount > 59)
+        {
+            hourCount += minCount / 60;
+            *minutes = minCount % 60;
+        }
+        else
+            *minutes = minCount;
+
+        if(hourCount > 23)
+        {
+            *days += hourCount / 24;
+            *hours = hourCount % 24;
+        }
+        else
+            *hours = hourCount;
+    }
+
+    if(!years)
+        return AtomicValue::Ptr();
+
+    /* We're supposed to handle years/months. */
+    Q_ASSERT(months);
+
+    *years = getCapt(year).toInt();
+    monthCount = getCapt(month).toInt();
+
+    if(monthCount > 11)
+    {
+        *years += monthCount / 12;
+        *months = monthCount % 12;
+    }
+    else
+        *months = monthCount;
+
+    return AtomicValue::Ptr();
+}
+#undef error
+#undef getCapt
+
+bool AbstractDuration::operator==(const AbstractDuration &other) const
+{
+    if(years() == other.years()
+       && months() == other.months()
+       && days() == other.days()
+       && hours() == other.hours()
+       && minutes() == other.minutes()
+       && seconds() == other.seconds()
+       && mseconds() == other.mseconds())
+    {
+        if(isPositive() == other.isPositive())
+            return true;
+        else if(years() == 0
+                && months() == 0
+                && days() == 0
+                && hours() == 0
+                && minutes() == 0
+                && seconds () == 0
+                && mseconds() == 0)
+        {
+            return true; /* Signedness doesn't matter if all are zero. */
+        }
+    }
+
+    return false;
+}
+
+QString AbstractDuration::serializeMSeconds(const MSecondProperty mseconds)
+{
+    QString retval;
+    retval.append(QLatin1Char('.'));
+    int div = 100;
+    MSecondProperty msecs = mseconds;
+
+    while(msecs > 0)
+    {
+        int d = msecs / div;
+        retval.append(QLatin1Char(d + '0'));
+        msecs = msecs % div;
+        div = div / 10;
+    }
+
+    return retval;
+}
+
+bool AbstractDuration::isPositive() const
+{
+    return m_isPositive;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qabstractduration_p.h b/src/xmlpatterns/data/qabstractduration_p.h
new file mode 100644
index 0000000..adde9d5
--- /dev/null
+++ b/src/xmlpatterns/data/qabstractduration_p.h
@@ -0,0 +1,192 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_AbstractDuration_H
+#define Patternist_AbstractDuration_H
+
+#include <QRegExp>
+
+#include "qitem_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Base class for classes implementing durations.
+     *
+     * @see <a href="http://www.w3.org/TR/xmlschema-2/#duration">XML Schema Part
+     * 2: Datatypes Second Edition, 3.2.6 duration</a>
+     * @see <a href="http://www.w3.org/TR/xpath-datamodel/#dates-and-times">XQuery
+     * 1.0 and XPath 2.0 Data Model (XDM), 3.3.2 Dates and Times</a>
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     * @todo Documentation is missing/incomplete
+     */
+    class AbstractDuration : public AtomicValue
+    {
+    public:
+        typedef QExplicitlySharedDataPointer<AbstractDuration> Ptr;
+
+        /**
+         * @short The amount in milli seconds.
+         */
+        typedef qint64 Value;
+
+        /**
+         * @short Acts as a mapping table for AbstractDuration::create()
+         * and describes where certain fields in a QRegExp pattern can be found
+         * for a particular W3C XML Schema duration type.
+         *
+         * @author Frans Englich <frans.englich@nokia.com>
+         * @ingroup Patternist_xdm
+         */
+        class CaptureTable
+        {
+        public:
+            CaptureTable(const QRegExp &exp,
+                         const qint8 yearP,
+                         const qint8 monthP,
+                         const qint8 dayP = -1,
+                         const qint8 tDelimiterP = -1,
+                         const qint8 hourP = -1,
+                         const qint8 minutesP = -1,
+                         const qint8 secondsP = -1,
+                         const qint8 msecondsP = -1) : regExp(exp),
+                                                       year(yearP),
+                                                       month(monthP),
+                                                       day(dayP),
+                                                       tDelimiter(tDelimiterP),
+                                                       hour(hourP),
+                                                       minutes(minutesP),
+                                                       seconds(secondsP),
+                                                       mseconds(msecondsP)
+            {
+                Q_ASSERT(exp.isValid());
+                Q_ASSERT(yearP == -1 || yearP == 2);
+            }
+
+            const QRegExp regExp;
+            const qint8 year;
+            const qint8 month;
+            const qint8 day;
+            const qint8 tDelimiter;
+            const qint8 hour;
+            const qint8 minutes;
+            const qint8 seconds;
+            const qint8 mseconds;
+        };
+
+        /**
+         * Determines whether this Duration is equal to @p other.
+         *
+         * @note Do not re-implement this function. It uses getters such as years() and
+         * mseconds() for determining its truth value.
+         */
+        bool operator==(const AbstractDuration &other) const;
+
+        virtual YearProperty years() const = 0;
+        virtual MonthProperty months() const = 0;
+        virtual DayCountProperty days() const = 0;
+        virtual HourProperty hours() const = 0;
+        virtual MinuteProperty minutes() const = 0;
+        virtual SecondProperty seconds() const = 0;
+        virtual MSecondProperty mseconds() const = 0;
+
+        /**
+         * @returns the value of this AbstractDuration. For example,
+         * in the case of xs:yearMonthDuration, that is YearMonthDuration,
+         * years times twelve plus the months is returned.
+         */
+        virtual Value value() const = 0;
+
+        /**
+         * A polymorphic factory function that returns instances of the
+         * sub-class with the value @p val.
+         */
+        virtual Item fromValue(const Value val) const = 0;
+
+        /**
+         * Determines whether this AbstractDuration is positive. For example,
+         * "P10H" is positive, while "-P10H" is not.
+         *
+         * @note Do not re-implement this function. Use the constructor, AbstractDuration(),
+         * for changing the value.
+         * @returns @c true if this AbstractDuration is positive, otherwise @c false.
+         */
+        bool isPositive() const;
+
+    protected:
+
+        AbstractDuration(const bool isPos);
+
+        static QString serializeMSeconds(const MSecondProperty mseconds);
+        static AtomicValue::Ptr create(const CaptureTable &captTable,
+                                       const QString &lexical,
+                                       bool *isPositive,
+                                       YearProperty *years,
+                                       MonthProperty *months,
+                                       DayCountProperty *days,
+                                       HourProperty *hours,
+                                       MinuteProperty *minutes,
+                                       SecondProperty *seconds,
+                                       MSecondProperty *mseconds);
+        const bool m_isPositive;
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qabstractfloat.cpp b/src/xmlpatterns/data/qabstractfloat.cpp
new file mode 100644
index 0000000..4f0c175
--- /dev/null
+++ b/src/xmlpatterns/data/qabstractfloat.cpp
@@ -0,0 +1,321 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/**
+ * @file
+ * @short This file is included by qabstractfloat_p.h.
+ * If you need includes in this file, put them in qabstractfloat_p.h, outside of the namespace.
+ */
+
+template <const bool isDouble>
+AbstractFloat<isDouble>::AbstractFloat(const xsDouble num) : m_value(num)
+{
+}
+
+template <const bool isDouble>
+Numeric::Ptr AbstractFloat<isDouble>::fromValue(const xsDouble num)
+{
+    return Numeric::Ptr(new AbstractFloat<isDouble>(num));
+}
+
+template <const bool isDouble>
+AtomicValue::Ptr AbstractFloat<isDouble>::fromLexical(const QString &strNumeric)
+{
+    /* QString::toDouble() handles the whitespace facet. */
+
+    if(strNumeric == QLatin1String("NaN"))
+        return isDouble ? CommonValues::DoubleNaN : CommonValues::FloatNaN;
+    else if(strNumeric == QLatin1String("-INF"))
+        return isDouble ? CommonValues::NegativeInfDouble : CommonValues::NegativeInfFloat;
+    else if(strNumeric == QLatin1String("INF"))
+        return isDouble ? CommonValues::InfDouble : CommonValues::InfFloat;
+
+    /* QString::toDouble() supports any case as well as +INF, but we don't. */
+    const QString toUpper(strNumeric.toUpper());
+    if(toUpper == QLatin1String("-INF") ||
+       toUpper == QLatin1String("INF")  ||
+       toUpper == QLatin1String("+INF") ||
+       toUpper == QLatin1String("NAN"))
+    {
+        return ValidationError::createError();
+    }
+
+    bool conversionOk = false;
+    const xsDouble num = strNumeric.toDouble(&conversionOk);
+
+    if(conversionOk)
+        return AtomicValue::Ptr(new AbstractFloat<isDouble>(num));
+    else
+        return ValidationError::createError();
+}
+
+template <const bool isDouble>
+int AbstractFloat<isDouble>::internalSignbit(const xsDouble num)
+{
+    Q_ASSERT_X(sizeof(xsDouble) == 8 || sizeof(xsDouble) == 4, Q_FUNC_INFO,
+               "This implementation of signbit assumes xsDouble, that is qreal, is 64 bits large.");
+
+    union
+    {
+        xsDouble asDouble;
+        qint64 asInt;
+    } value;
+
+    value.asDouble = num;
+
+    /* The highest bit, the 64'th for those who have 64bit floats, is the sign bit. So we pull it down until that bit is the
+     * only one left. */
+    if(sizeof(xsDouble) == 8)
+        return value.asInt >> 63;
+    else
+        return value.asInt >> 31;
+}
+
+template <const bool isDouble>
+bool AbstractFloat<isDouble>::isEqual(const xsDouble a, const xsDouble b)
+{
+    if(qIsInf(a))
+        return qIsInf(b) && internalSignbit(a) == internalSignbit(b);
+    else if(qIsInf(b))
+        return qIsInf(a) && internalSignbit(a) == internalSignbit(b);
+    else
+    {
+        /* Preferably, we would use std::numeric_limits<xsDouble>::espilon(), but
+         * we cannot since we cannot depend on the STL. The small xs:double value below,
+         * was extracted by printing the std::numeric_limits<xsDouble>::epsilon() using
+         * gdb. */
+        return qAbs(a - b) <= 2.2204460492503131e-16 * qAbs(a);
+    }
+}
+
+template <const bool isDouble>
+bool AbstractFloat<isDouble>::isZero() const
+{
+    return AbstractFloat<isDouble>::isEqual(m_value, 0.0);
+}
+
+template <const bool isDouble>
+bool AbstractFloat<isDouble>::evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    if(isZero() || qIsNaN(m_value))
+        return false;
+    else
+        return true;
+}
+
+template <const bool isDouble>
+QString AbstractFloat<isDouble>::stringValue() const
+{
+    if(qIsNaN(m_value))
+        return QLatin1String("NaN");
+    else if(qIsInf(m_value))
+        return internalSignbit(m_value) == 0 ? QLatin1String("INF") : QLatin1String("-INF");
+    /*
+     * If SV has an absolute value that is greater than or equal to 0.000001
+     * (one millionth) and less than 1000000 (one million),
+     * then the value is converted to an xs:decimal and the resulting xs:decimal
+     * is converted to an xs:string according to the rules above.
+     */
+    else if(0.000001 <= qAbs(m_value) && qAbs(m_value) < 1000000.0)
+        return Decimal::toString(toDecimal());
+    /*
+     * If SV has the value positive or negative zero, TV is "0" or "-0" respectively.
+     */
+    else if(isZero())
+        return internalSignbit(m_value) == 0 ? QLatin1String("0") : QLatin1String("-0");
+    else
+    {
+        /*
+         * Besides these special values, the general form of the canonical form for
+         * xs:float and xs:double is a mantissa, which is a xs:decimal, followed by
+         * the letter "E", followed by an exponent which is an xs:integer.
+         */
+        int sign;
+        int decimalPoint;
+        char *result = 0;
+        static_cast<void>(qdtoa(m_value, -1, 0, &decimalPoint, &sign, 0, &result));
+
+        /* If the copy constructor is used instead of QString::operator=(),
+         * it doesn't compile. I have no idea why. */
+        const QString qret(QString::fromLatin1(result));
+
+        /* We use free() instead of delete here, because qlocale.cpp use malloc(). Spotted
+         * by valgrind. */
+        free(result);
+
+        QString valueAsString;
+
+        if(sign)
+            valueAsString += QLatin1Char('-');
+
+        valueAsString += qret.at(0);
+        valueAsString += QLatin1Char('.');
+
+        if(1 == qret.size())
+            valueAsString += QLatin1Char('0');
+        else
+            valueAsString += qret.mid(1);
+
+        valueAsString += QLatin1Char('E');
+        decimalPoint--;
+        valueAsString += QString::number(decimalPoint);
+        return valueAsString;
+    }
+}
+
+template <const bool isDouble>
+xsDouble AbstractFloat<isDouble>::toDouble() const
+{
+    return m_value;
+}
+
+template <const bool isDouble>
+xsInteger AbstractFloat<isDouble>::toInteger() const
+{
+    return static_cast<xsInteger>(m_value);
+}
+
+template <const bool isDouble>
+xsFloat AbstractFloat<isDouble>::toFloat() const
+{
+    /* No cast, since xsFloat and xsDouble are typedef'ed with the same type. */
+    return m_value;
+}
+
+template <const bool isDouble>
+xsDecimal AbstractFloat<isDouble>::toDecimal() const
+{
+    return static_cast<xsDecimal>(m_value);
+}
+
+template <const bool isDouble>
+Numeric::Ptr AbstractFloat<isDouble>::round() const
+{
+    return AbstractFloat<isDouble>::fromValue(static_cast<xsDouble>(roundFloat(m_value)));
+}
+
+template <const bool isDouble>
+Numeric::Ptr AbstractFloat<isDouble>::roundHalfToEven(const xsInteger precision) const
+{
+    if(isNaN() || isInf() || isZero())
+        return Numeric::Ptr(const_cast<AbstractFloat<isDouble> *>(this));
+    else
+    {
+        /* The cast to double helps finding the correct pow() version on irix-cc. */
+        const xsDouble powered = pow(double(10), double(precision));
+        xsDouble val = powered * m_value;
+        bool isHalf = false;
+
+        if(val - 0.5 == ::floor(val))
+            isHalf = true;
+
+        val = m_value * powered + 0.5;
+        val = ::floor(val);
+
+        if(isHalf /*&& isOdd(val) or? TODO */)
+            val -= 1;
+
+        val /= powered;
+
+        return fromValue(val);
+    }
+}
+
+template <const bool isDouble>
+Numeric::Ptr AbstractFloat<isDouble>::floor() const
+{
+    return AbstractFloat<isDouble>::fromValue(static_cast<xsDouble>(::floor(m_value)));
+}
+
+template <const bool isDouble>
+Numeric::Ptr AbstractFloat<isDouble>::ceiling() const
+{
+    return AbstractFloat<isDouble>::fromValue(static_cast<xsDouble>(ceil(m_value)));
+}
+
+template <const bool isDouble>
+Numeric::Ptr AbstractFloat<isDouble>::abs() const
+{
+    /* We must use fabs() instead of qAbs() because qAbs()
+     * doesn't return 0 for -0.0. */
+    return AbstractFloat<isDouble>::fromValue(static_cast<xsDouble>(fabs(m_value)));
+}
+
+template <const bool isDouble>
+bool AbstractFloat<isDouble>::isNaN() const
+{
+    return qIsNaN(m_value);
+}
+
+template <const bool isDouble>
+bool AbstractFloat<isDouble>::isInf() const
+{
+    return qIsInf(m_value);
+}
+
+template <const bool isDouble>
+ItemType::Ptr AbstractFloat<isDouble>::type() const
+{
+    return isDouble ? BuiltinTypes::xsDouble : BuiltinTypes::xsFloat;
+}
+
+template <const bool isDouble>
+Item AbstractFloat<isDouble>::toNegated() const
+{
+    return fromValue(-m_value).data();
+}
+
+template <const bool isDouble>
+bool AbstractFloat<isDouble>::isSigned() const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO,
+               "It makes no sense to call this function, see Numeric::isSigned().");
+    return false;
+}
+
+template <const bool isDouble>
+qulonglong AbstractFloat<isDouble>::toUnsignedInteger() const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO,
+               "It makes no sense to call this function, see Numeric::toUnsignedInteger().");
+    return 0;
+}
+
diff --git a/src/xmlpatterns/data/qabstractfloat_p.h b/src/xmlpatterns/data/qabstractfloat_p.h
new file mode 100644
index 0000000..9abf97f
--- /dev/null
+++ b/src/xmlpatterns/data/qabstractfloat_p.h
@@ -0,0 +1,174 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_AbstractFloat_H
+#define Patternist_AbstractFloat_H
+
+#include <math.h>
+
+#include <qnumeric.h>
+
+#include "qcommonvalues_p.h"
+#include "qdecimal_p.h"
+#include "qschemanumeric_p.h"
+#include "qvalidationerror_p.h"
+#include "qbuiltintypes_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Base template class for Float and Double classes.
+     *
+     * @author Vincent Ricard <magic@magicninja.org>
+     * @ingroup Patternist_xdm
+     */
+    template <const bool isDouble>
+    class AbstractFloat : public Numeric
+    {
+    public:
+        static Numeric::Ptr fromValue(const xsDouble num);
+        static AtomicValue::Ptr fromLexical(const QString &strNumeric);
+
+        /**
+         * @todo more extensive docs.
+         *
+         * Performs floating point comparison.
+         *
+         * @returns @c true if @p a and @p are equal, otherwise @c false.
+         */
+        static bool isEqual(const xsDouble a, const xsDouble b);
+
+        /**
+         * Determines the Effective %Boolean Value of this number.
+         *
+         * @returns @c false if the number is 0 or @c NaN, otherwise @c true.
+         */
+        bool evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const;
+
+        /**
+         * Returns this AbstractFloat represented as an @c xs:string.
+         *
+         * @note In the XPath/XQuery languages, converting @c xs:double and @c xs:float
+         * to @c xs:string is not specified in XML Schema 1.0 Part 2: Datatypes Second Edition,
+         * but in XQuery 1.0 and XPath 2.0 Functions and Operators. This will change with W3C XML
+         * Schema 1.1
+         *
+         * @see <a href="http://www.w3.org/TR/xpath-functions/#casting-to-string">XQuery 1.0
+         * and XPath 2.0 Functions and Operators, 17.1.2 Casting to xs:string and xdt:untypedAtomic</a>
+         */
+        virtual QString stringValue() const;
+
+        virtual xsDouble toDouble() const;
+        virtual xsInteger toInteger() const;
+        virtual xsFloat toFloat() const;
+        virtual xsDecimal toDecimal() const;
+
+        virtual Numeric::Ptr round() const;
+        virtual Numeric::Ptr roundHalfToEven(const xsInteger scale) const;
+        virtual Numeric::Ptr floor() const;
+        virtual Numeric::Ptr ceiling() const;
+        virtual Numeric::Ptr abs() const;
+
+        virtual bool isNaN() const;
+        virtual bool isInf() const;
+
+        virtual ItemType::Ptr type() const;
+        virtual Item toNegated() const;
+        virtual qulonglong toUnsignedInteger() const;
+
+        virtual bool isSigned() const;
+    protected:
+        AbstractFloat(const xsDouble num);
+
+    private:
+        /**
+         * From the Open Group's man page: "The signbit() macro shall return a
+         * non-zero value if and only if the sign of its argument value is
+         * negative."
+         *
+         * MS Windows doesn't have std::signbit() so here's
+         * a reinvention of that function.
+         */
+        static inline int internalSignbit(const xsDouble v);
+        inline bool isZero() const;
+
+        const xsDouble m_value;
+    };
+
+    template <const bool isDouble>
+    Numeric::Ptr createFloat(const xsDouble num);
+
+#include "qabstractfloat.cpp"
+
+    /**
+     * @short An instantiation of AbsbstractFloat suitable for @c xs:double.
+     *
+     * @ingroup Patternist_xdm
+     */
+    typedef AbstractFloat<true> Double;
+
+    /**
+     * @short An instantiation of AbstractFloat suitable for @c xs:float.
+     *
+     * @ingroup Patternist_xdm
+     */
+    typedef AbstractFloat<false> Float;
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qabstractfloatcasters.cpp b/src/xmlpatterns/data/qabstractfloatcasters.cpp
new file mode 100644
index 0000000..394d732
--- /dev/null
+++ b/src/xmlpatterns/data/qabstractfloatcasters.cpp
@@ -0,0 +1,74 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*
+ * NOTE: This file is included by qabstractfloatcasters_p.h
+ * if you need some includes, put them in qabstractfloatcasters_p.h (outside of the namespace)
+ */
+
+template <const bool isDouble>
+Item NumericToAbstractFloatCaster<isDouble>::castFrom(const Item &from,
+                                                           const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    // toDouble() returns same thing than toFloat()
+    return toItem(AbstractFloat<isDouble>::fromValue(from.template as<Numeric>()->toDouble()));
+}
+
+template <const bool isDouble>
+Item StringToAbstractFloatCaster<isDouble>::castFrom(const Item &from,
+                                                          const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return toItem(AbstractFloat<isDouble>::fromLexical(from.stringValue()));
+}
+
+template <const bool isDouble>
+Item BooleanToAbstractFloatCaster<isDouble>::castFrom(const Item &from,
+                                                           const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+    // RVCT doesn't like using template parameter in trinary operator when the trinary operator result is
+    // passed directly into another constructor. 
+    bool tempDouble = isDouble;
+    if(from.template as<AtomicValue>()->evaluateEBV(context))
+        return tempDouble ? toItem(CommonValues::DoubleOne) : toItem(CommonValues::FloatOne);
+    else
+        return tempDouble ? toItem(CommonValues::DoubleZero) : toItem(CommonValues::FloatZero);
+}
+
diff --git a/src/xmlpatterns/data/qabstractfloatcasters_p.h b/src/xmlpatterns/data/qabstractfloatcasters_p.h
new file mode 100644
index 0000000..109018c
--- /dev/null
+++ b/src/xmlpatterns/data/qabstractfloatcasters_p.h
@@ -0,0 +1,175 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_AbstractFloatCasters_H
+#define Patternist_AbstractFloatCasters_H
+
+#include "qabstractfloat_p.h"
+#include "qatomiccaster_p.h"
+#include "qschemanumeric_p.h"
+
+/**
+ * @file
+ * @short Contains classes sub-classing AtomicCaster and which
+ * are responsible of casting an atomic value to AbstractFloat.
+ */
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+
+    /**
+     * @short Casts a @c numeric value, such as @c xs:integer or @c xs:float, to @c xs:double or xs:float.
+     *
+     * castFrom() uses Numeric::toDouble() for doing the actual casting.
+     *
+     * @ingroup Patternist_xdm
+     * @author Vincent Ricard <magic@magicninja.org>
+     */
+    template <const bool isDouble>
+    class NumericToAbstractFloatCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a string value, @c xs:string or @c xs:untypedAtomic, to @c xs:double or xs:float.
+     *
+     * @ingroup Patternist_xdm
+     * @author Vincent Ricard <magic@magicninja.org>
+     */
+    template <const bool isDouble>
+    class StringToAbstractFloatCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a value of type @c xs:boolean to @c xs:double or xs:float.
+     *
+     * @ingroup Patternist_xdm
+     * @author Vincent Ricard <magic@magicninja.org>
+     */
+    template <const bool isDouble>
+    class BooleanToAbstractFloatCaster : public AtomicCaster
+    {
+        public:
+            virtual Item castFrom(const Item &from,
+                                  const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+#include "qabstractfloatcasters.cpp"
+
+   /**
+    * @short Casts a @c numeric value, such as @c xs:integer or @c xs:float, to @c xs:double.
+    *
+    * castFrom() uses Numeric::toDouble() for doing the actual casting.
+    *
+    * @ingroup Patternist_xdm
+    * @author Frans Englich <frans.englich@nokia.com>
+    */
+    typedef NumericToAbstractFloatCaster<true> NumericToDoubleCaster;
+
+   /**
+    * @short Casts a @c numeric value, such as @c xs:double or @c xs:decimal, to @c xs:float.
+    *
+    * castFrom() uses Numeric::toFloat() for doing the actual casting.
+    *
+    * @ingroup Patternist_xdm
+    * @author Frans Englich <frans.englich@nokia.com>
+    */
+    typedef NumericToAbstractFloatCaster<false> NumericToFloatCaster;
+
+    /**
+     * @short Casts a string value, @c xs:string or @c xs:untypedAtomic, to @c xs:double.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    typedef StringToAbstractFloatCaster<true> StringToDoubleCaster;
+
+    /**
+     * @short Casts a string value, @c xs:string or @c xs:untypedAtomic, to @c xs:float.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    typedef StringToAbstractFloatCaster<false> StringToFloatCaster;
+
+   /**
+    * @short Casts a value of type @c xs:boolean to @c xs:double.
+    *
+    * @ingroup Patternist_xdm
+    * @author Frans Englich <frans.englich@nokia.com>
+    */
+    typedef BooleanToAbstractFloatCaster<true> BooleanToDoubleCaster;
+
+    /**
+     * @short Casts a value of type @c xs:boolean to @c xs:float.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    typedef BooleanToAbstractFloatCaster<false> BooleanToFloatCaster;
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qabstractfloatmathematician.cpp b/src/xmlpatterns/data/qabstractfloatmathematician.cpp
new file mode 100644
index 0000000..94507b3
--- /dev/null
+++ b/src/xmlpatterns/data/qabstractfloatmathematician.cpp
@@ -0,0 +1,97 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*
+ * @file
+ * @short This file is included by qatomicmathematicians_p.h
+ * if you need some includes, put them in qabstractfloatmathematician_p.h, outside of the namespace.
+ */
+
+template <const bool isDouble>
+Item AbstractFloatMathematician<isDouble>::calculate(const Item &o1,
+                                                          const Operator op,
+                                                          const Item &o2,
+                                                          const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+    const Numeric *const num1 = o1.template as<Numeric>();
+    const Numeric *const num2 = o2.template as<Numeric>();
+    switch(op)
+    {
+        case Div:
+            return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() / num2->toDouble()));
+        case IDiv:
+        {
+            if(num1->isNaN() || num2->isNaN())
+            {
+                context->error(QtXmlPatterns::tr("No operand in an integer division, %1, can be %2.")
+                                  .arg(formatKeyword("idiv"))
+                                  .arg(formatData("NaN")),
+                               ReportContext::FOAR0002, this);
+            }
+            else if(num1->isInf())
+            {
+                context->error(QtXmlPatterns::tr("The first operand in an integer division, %1, cannot be infinity (%2).")
+                                                 .arg(formatKeyword("idiv"))
+                                                 .arg(formatData("INF")),
+                               ReportContext::FOAR0002, this);
+            }
+            else if(num2->toInteger() == 0)
+                context->error(QtXmlPatterns::tr("The second operand in a division, %1, cannot be zero (%2).")
+                                                 .arg(formatKeyword("idiv"))
+                                                 .arg(formatData("0")),
+                               ReportContext::FOAR0001, this);
+
+            return Integer::fromValue(static_cast<xsInteger>(num1->toDouble() / num2->toDouble()));
+        }
+        case Substract:
+            return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() - num2->toDouble()));
+        case Mod:
+            return toItem(AbstractFloat<isDouble>::fromValue(::fmod(num1->toDouble(), num2->toDouble())));
+        case Multiply:
+            return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() * num2->toDouble()));
+        case Add:
+            return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() + num2->toDouble()));
+    }
+
+    Q_ASSERT(false);
+    return Item(); /* GCC unbarfer. */
+}
+
diff --git a/src/xmlpatterns/data/qabstractfloatmathematician_p.h b/src/xmlpatterns/data/qabstractfloatmathematician_p.h
new file mode 100644
index 0000000..a51934a
--- /dev/null
+++ b/src/xmlpatterns/data/qabstractfloatmathematician_p.h
@@ -0,0 +1,104 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_AbstractFloatMathematician_H
+#define Patternist_AbstractFloatMathematician_H
+
+#include "qabstractfloat_p.h"
+#include "qatomicmathematician_p.h"
+#include "qinteger_p.h"
+#include "qschemanumeric_p.h"
+#include "qpatternistlocale_p.h"
+#include "qsourcelocationreflection_p.h"
+
+QT_BEGIN_HEADER
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Performs arithmetics between AbstractFloat values (Float and Double classes).
+     *
+     * @ingroup Patternist_xdm
+     * @author Vincent Ricard <magic@magicninja.org>
+     */
+    template <const bool isDouble>
+    class AbstractFloatMathematician : public AtomicMathematician
+                                     , public DelegatingSourceLocationReflection
+    {
+    public:
+        inline AbstractFloatMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
+        {
+        }
+
+        virtual Item calculate(const Item &o1,
+                                    const Operator op,
+                                    const Item &o2,
+                                    const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+#include "qabstractfloatmathematician.cpp"
+
+    /**
+     * An instantiation of AbstractFloatMathematician that handles @c xs:double.
+     */
+    typedef AbstractFloatMathematician<true> DoubleMathematician;
+
+    /**
+     * An instantiation of AbstractFloatMathematician that handles @c xs:float.
+     */
+    typedef AbstractFloatMathematician<false> FloatMathematician;
+}
+
+QT_END_NAMESPACE
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qanyuri.cpp b/src/xmlpatterns/data/qanyuri.cpp
new file mode 100644
index 0000000..5d50efc
--- /dev/null
+++ b/src/xmlpatterns/data/qanyuri.cpp
@@ -0,0 +1,104 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qdynamiccontext_p.h"
+#include "qvalidationerror_p.h"
+#include "qitem_p.h"
+
+#include "qanyuri_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+AnyURI::AnyURI(const QString &s) : AtomicString(s)
+{
+}
+
+AnyURI::Ptr AnyURI::fromValue(const QString &value)
+{
+    return AnyURI::Ptr(new AnyURI(value));
+}
+
+AnyURI::Ptr AnyURI::fromValue(const QUrl &uri)
+{
+    return AnyURI::Ptr(new AnyURI(uri.toString()));
+}
+
+AnyURI::Ptr AnyURI::resolveURI(const QString &relative,
+                               const QString &base)
+{
+    const QUrl urlBase(base);
+    return AnyURI::fromValue(urlBase.resolved(relative).toString());
+}
+
+ItemType::Ptr AnyURI::type() const
+{
+    return BuiltinTypes::xsAnyURI;
+}
+
+AnyURI::Ptr AnyURI::fromLexical(const QString &value)
+{
+    bool isValid;
+    /* The error code doesn't matter, because we never raise error. */
+    const QUrl retval(toQUrl<ReportContext::FORG0001>(value,
+                                                      DynamicContext::Ptr(),
+                                                      0,
+                                                      &isValid,
+                                                      false));
+    if(isValid)
+        return fromValue(retval);
+    else
+        return ValidationError::createError();
+}
+
+bool AnyURI::isValid(const QString &candidate)
+{
+    bool isOk = false;
+    /* The error code doesn't matter, because we never raise error. */
+    toQUrl<ReportContext::FORG0001>(candidate,
+                                    ReportContext::Ptr(),
+                                    0,
+                                    &isOk,
+                                    false);
+    return isOk;
+}
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qanyuri_p.h b/src/xmlpatterns/data/qanyuri_p.h
new file mode 100644
index 0000000..6567d9c
--- /dev/null
+++ b/src/xmlpatterns/data/qanyuri_p.h
@@ -0,0 +1,212 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_AnyURI_H
+#define Patternist_AnyURI_H
+
+#include <QUrl>
+#include <QtDebug>
+
+#include "qatomicstring_p.h"
+#include "qbuiltintypes_p.h"
+#include "qpatternistlocale_p.h"
+#include "qreportcontext_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short A value of type <tt>xs:anyURI</tt>.
+     *
+     * Due to bugs in QUrl and slight differences in behavior and
+     * interpretation, QUrl can never be used directly for dealing with URIs,
+     * values of type @c xs:anyURI. Therefore, it's important to use the
+     * functionality this class provides, such as the functions toQUrl(),
+     * fromLexical(), isValid(), and resolveURI().
+     *
+     * @see QUrl
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class AnyURI : public AtomicString
+    {
+    public:
+        typedef QExplicitlySharedDataPointer<AnyURI> Ptr;
+
+        /**
+         * Creates an instance representing @p value.
+         *
+         * @note @p value must be a valid @c xs:anyURI. If it is of interest
+         * to construct from a lexical representation, use fromLexical().
+         */
+        static AnyURI::Ptr fromValue(const QString &value);
+
+        static AnyURI::Ptr fromValue(const QUrl &uri);
+
+        /**
+         * @short Treates @p value as a lexical representation of @c xs:anyURI
+         * but returns the value instance as a QUrl.
+         *
+         * If @p value is not a valid lexical representation of @c xs:anyURI,
+         * an error is issued via @p context.
+         *
+         * If @p isValid is passed, no error is raised and it is instead set
+         * appropriately.
+         */
+        template<const ReportContext::ErrorCode code, typename TReportContext>
+        static inline QUrl toQUrl(const QString &value,
+                                  const TReportContext &context,
+                                  const SourceLocationReflection *const r,
+                                  bool *const isValid = 0,
+                                  const bool issueError = true)
+        {
+            /* QUrl doesn't flag ":/..." so we workaround it. */
+            const QString simplified(value.simplified());
+            const QUrl uri(simplified, QUrl::StrictMode);
+
+            if(uri.isEmpty() || (uri.isValid() && (!simplified.startsWith(QLatin1Char(':')) || !uri.isRelative())))
+            {
+                if(isValid)
+                    *isValid = true;
+
+                return uri;
+            }
+            else
+            {
+                if(isValid)
+                    *isValid = false;
+
+                if(issueError)
+                {
+                    context->error(QtXmlPatterns::tr("%1 is not a valid value of type %2.").arg(formatURI(value), formatType(context->namePool(), BuiltinTypes::xsAnyURI)),
+                                   code, r);
+                }
+
+                return QUrl();
+            }
+        }
+
+        /**
+         * @short Return @c true if @p candidate is a valid @c xs:anyURI,
+         * otherwise @c false.
+         */
+        static bool isValid(const QString &candidate);
+
+        /**
+         * @short Constructs a @c xs:anyURI value from the lexical representation @p value.
+         *
+         * If @p value is not a valid lexical representation of @c xs:anyURI,
+         * an error is issued via @p context.
+         */
+        template<const ReportContext::ErrorCode code, typename TReportContext>
+        static inline AnyURI::Ptr fromLexical(const QString &value,
+                                              const TReportContext &context,
+                                              const SourceLocationReflection *const r)
+        {
+            return AnyURI::Ptr(new AnyURI(toQUrl<code>(value, context, r).toString()));
+        }
+
+        /**
+         * If @p value is not a valid lexical representation for @c xs:anyURI,
+         * a ValidationError is returned.
+         */
+        static AnyURI::Ptr fromLexical(const QString &value);
+
+        /**
+         * Creates an AnyURI instance representing an absolute URI which
+         * is created from resolving @p relative against @p base.
+         *
+         * This function must be compatible with the resolution semantics
+         * specified for fn:resolve-uri. In fact, the implementation of fn:resolve-uri,
+         * ResourceURIFN, relies on this function.
+         *
+         * @see <a href="http://www.faqs.org/rfcs/rfc3986.html">RFC 3986 - Uniform
+         * Resource Identifier (URI): Generic Syntax</a>
+         * @see <a href ="http://www.w3.org/TR/xpath-functions/#func-resolve-uri">XQuery 1.0
+         * and XPath 2.0 Functions and Operators, 8.1 fn:resolve-uri</a>
+         */
+        static AnyURI::Ptr resolveURI(const QString &relative,
+                                      const QString &base);
+
+        virtual ItemType::Ptr type() const;
+
+        /**
+         * @short Returns this @c xs:anyURI value in a QUrl.
+         */
+        inline QUrl toQUrl() const
+        {
+            Q_ASSERT_X(QUrl(m_value).isValid(), Q_FUNC_INFO,
+                       qPrintable(QString::fromLatin1("%1 is apparently not ok for QUrl.").arg(m_value)));
+            return QUrl(m_value);
+        }
+    protected:
+        friend class CommonValues;
+
+        AnyURI(const QString &value);
+    };
+
+    /**
+     * @short Formats @p uri, that's considered to be a URI, for display.
+     */
+    static inline QString formatURI(const NamePool::Ptr &np, const QXmlName::NamespaceCode &uri)
+    {
+        return formatURI(np->stringForNamespace(uri));
+    }
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qatomiccaster.cpp b/src/xmlpatterns/data/qatomiccaster.cpp
new file mode 100644
index 0000000..20af624
--- /dev/null
+++ b/src/xmlpatterns/data/qatomiccaster.cpp
@@ -0,0 +1,56 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qatomiccaster_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+AtomicCaster::AtomicCaster()
+{
+}
+
+AtomicCaster::~AtomicCaster()
+{
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qatomiccaster_p.h b/src/xmlpatterns/data/qatomiccaster_p.h
new file mode 100644
index 0000000..b746bc6
--- /dev/null
+++ b/src/xmlpatterns/data/qatomiccaster_p.h
@@ -0,0 +1,94 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_AtomicCaster_H
+#define Patternist_AtomicCaster_H
+
+#include "qdynamiccontext_p.h"
+#include "qitem_p.h"
+#include "qatomictypedispatch_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short AtomicCaster is an abstract base class for classes
+     * that performs casting between two atomic values of specific types.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AtomicCaster : public AtomicTypeVisitorResult
+    {
+    public:
+        typedef QExplicitlySharedDataPointer<AtomicCaster> Ptr;
+        AtomicCaster();
+        virtual ~AtomicCaster();
+
+        /**
+         * Casts @p from to an atomic value of the type this class
+         * casts to, and returns that value. The @p context is used
+         * for reporting errors in case the casting fails, and to in general
+         * access information from the dynamic context.
+         */
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const = 0;
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qatomiccasters.cpp b/src/xmlpatterns/data/qatomiccasters.cpp
new file mode 100644
index 0000000..250641f
--- /dev/null
+++ b/src/xmlpatterns/data/qatomiccasters.cpp
@@ -0,0 +1,336 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 <qnumeric.h>
+
+#include "qabstractfloat_p.h"
+#include "qanyuri_p.h"
+#include "qbase64binary_p.h"
+#include "qboolean_p.h"
+#include "qcommonvalues_p.h"
+#include "qdate_p.h"
+#include "qschemadatetime_p.h"
+#include "qdaytimeduration_p.h"
+#include "qdecimal_p.h"
+#include "qduration_p.h"
+#include "qgday_p.h"
+#include "qgmonth_p.h"
+#include "qgmonthday_p.h"
+#include "qgyear_p.h"
+#include "qgyearmonth_p.h"
+#include "qhexbinary_p.h"
+#include "qinteger_p.h"
+#include "qatomicstring_p.h"
+#include "qschematime_p.h"
+#include "quntypedatomic_p.h"
+#include "qyearmonthduration_p.h"
+
+#include "qatomiccasters_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+Item ToUntypedAtomicCaster::castFrom(const Item &from,
+                                     const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return UntypedAtomic::fromValue(from.stringValue());
+}
+
+Item ToAnyURICaster::castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return toItem(AnyURI::fromLexical(from.stringValue()));
+}
+
+Item Base64BinaryToHexBinaryCaster::castFrom(const Item &from,
+                                             const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return HexBinary::fromValue(from.as<Base64Binary>()->asByteArray());
+}
+
+Item StringToHexBinaryCaster::castFrom(const Item &from,
+                                       const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+    return HexBinary::fromLexical(context->namePool(), from.stringValue());
+}
+
+Item HexBinaryToBase64BinaryCaster::castFrom(const Item &from,
+                                             const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return Base64Binary::fromValue(from.as<Base64Binary>()->asByteArray());
+}
+
+Item StringToBase64BinaryCaster::castFrom(const Item &from,
+                                          const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return Base64Binary::fromLexical(from.stringValue());
+}
+
+Item NumericToBooleanCaster::castFrom(const Item &from,
+                                      const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    const xsDouble val = from.as<Numeric>()->toDouble();
+    if(Double::isEqual(val, 0.0) || qIsNaN(val))
+        return CommonValues::BooleanFalse;
+    else
+        return CommonValues::BooleanTrue;
+}
+
+Item StringToBooleanCaster::castFrom(const Item &from,
+                                     const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return Boolean::fromLexical(from.stringValue());
+}
+
+Item StringToDecimalCaster::castFrom(const Item &from,
+                                     const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return Decimal::fromLexical(from.stringValue());
+}
+
+Item StringToIntegerCaster::castFrom(const Item &from,
+                                     const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return Integer::fromLexical(from.stringValue());
+}
+
+Item BooleanToDecimalCaster::castFrom(const Item &from,
+                                      const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+    if(from.as<AtomicValue>()->evaluateEBV(context))
+        return CommonValues::DecimalOne;
+    else
+        return CommonValues::DecimalZero;
+}
+
+Item BooleanToIntegerCaster::castFrom(const Item &from,
+                                      const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+    if(from.as<AtomicValue>()->evaluateEBV(context))
+        return CommonValues::IntegerOne;
+    else
+        return CommonValues::IntegerZero;
+}
+
+Item SelfToSelfCaster::castFrom(const Item &from,
+                                const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return from;
+}
+
+Item StringToGYearCaster::castFrom(const Item &from,
+                                   const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return GYear::fromLexical(from.stringValue());
+}
+
+Item StringToGDayCaster::castFrom(const Item &from,
+                                  const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return GDay::fromLexical(from.stringValue());
+}
+
+Item StringToGMonthCaster::castFrom(const Item &from,
+                                    const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return GMonth::fromLexical(from.stringValue());
+}
+
+Item StringToGYearMonthCaster::castFrom(const Item &from,
+                                        const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return GYearMonth::fromLexical(from.stringValue());
+}
+
+Item StringToGMonthDayCaster::castFrom(const Item &from,
+                                       const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return GMonthDay::fromLexical(from.stringValue());
+}
+
+Item StringToDateTimeCaster::castFrom(const Item &from,
+                                      const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return DateTime::fromLexical(from.stringValue());
+}
+
+Item StringToTimeCaster::castFrom(const Item &from,
+                                  const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return SchemaTime::fromLexical(from.stringValue());
+}
+
+Item StringToDateCaster::castFrom(const Item &from,
+                                  const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return Date::fromLexical(from.stringValue());
+}
+
+Item StringToDurationCaster::castFrom(const Item &from,
+                                      const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return Duration::fromLexical(from.stringValue());
+}
+
+Item StringToDayTimeDurationCaster::castFrom(const Item &from,
+                                             const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return toItem(DayTimeDuration::fromLexical(from.stringValue()));
+}
+
+Item AbstractDurationToDayTimeDurationCaster::castFrom(const Item &from,
+                                                       const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    const AbstractDuration *const val = from.as<AbstractDuration>();
+
+    return toItem(DayTimeDuration::fromComponents(val->isPositive(),
+                                                  val->days(),
+                                                  val->hours(),
+                                                  val->minutes(),
+                                                  val->seconds(),
+                                                  val->mseconds()));
+}
+
+Item AbstractDurationToYearMonthDurationCaster::castFrom(const Item &from,
+                                                         const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    const AbstractDuration *const val = from.as<AbstractDuration>();
+
+    return toItem(YearMonthDuration::fromComponents(val->isPositive(),
+                                                    val->years(),
+                                                    val->months()));
+}
+
+Item AbstractDurationToDurationCaster::castFrom(const Item &from,
+                                                const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    const AbstractDuration *const val = from.as<AbstractDuration>();
+
+    return Duration::fromComponents(val->isPositive(),
+                                    val->years(),
+                                    val->months(),
+                                    val->days(),
+                                    val->hours(),
+                                    val->minutes(),
+                                    val->seconds(),
+                                    val->mseconds());
+}
+
+Item StringToYearMonthDurationCaster::castFrom(const Item &from,
+                                               const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return YearMonthDuration::fromLexical(from.stringValue());
+}
+
+Item AbstractDateTimeToGYearCaster::castFrom(const Item &from,
+                                             const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    QDateTime dt(from.as<AbstractDateTime>()->toDateTime());
+    // TODO DT dt.setDateOnly(true);
+
+    return GYear::fromDateTime(dt);
+}
+
+Item AbstractDateTimeToGYearMonthCaster::castFrom(const Item &from,
+                                                  const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    QDateTime dt(from.as<AbstractDateTime>()->toDateTime());
+    // TODO DT dt.setDateOnly(true);
+
+    return GYearMonth::fromDateTime(dt);
+}
+
+Item AbstractDateTimeToGMonthCaster::castFrom(const Item &from,
+                                              const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    QDateTime dt(from.as<AbstractDateTime>()->toDateTime());
+    // TODO DT dt.setDateOnly(true);
+
+    return GMonth::fromDateTime(dt);
+}
+
+Item AbstractDateTimeToGMonthDayCaster::castFrom(const Item &from,
+                                                 const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    QDateTime dt(from.as<AbstractDateTime>()->toDateTime());
+    // TODO DT dt.setDateOnly(true);
+
+    return GMonthDay::fromDateTime(dt);
+}
+
+Item AbstractDateTimeToGDayCaster::castFrom(const Item &from,
+                                            const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    QDateTime dt(from.as<AbstractDateTime>()->toDateTime());
+    // TODO DT dt.setDateOnly(true);
+
+    return GDay::fromDateTime(dt);
+}
+
+Item AbstractDateTimeToDateTimeCaster::castFrom(const Item &from,
+                                                const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    QDateTime dt(from.as<AbstractDateTime>()->toDateTime());
+    // TODO DT dt.setDateOnly(false);
+
+    return DateTime::fromDateTime(dt);
+}
+
+Item AbstractDateTimeToDateCaster::castFrom(const Item &from,
+                                            const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    QDateTime dt(from.as<AbstractDateTime>()->toDateTime());
+    // TODO DT dt.setDateOnly(true);
+
+    return Date::fromDateTime(dt);
+}
+
+Item AbstractDateTimeToTimeCaster::castFrom(const Item &from,
+                                            const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    QDateTime dt(from.as<AbstractDateTime>()->toDateTime());
+    // TODO DT dt.setDateOnly(false);
+
+    return SchemaTime::fromDateTime(dt);
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qatomiccasters_p.h b/src/xmlpatterns/data/qatomiccasters_p.h
new file mode 100644
index 0000000..d55344f
--- /dev/null
+++ b/src/xmlpatterns/data/qatomiccasters_p.h
@@ -0,0 +1,705 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_AtomicCasters_H
+#define Patternist_AtomicCasters_H
+
+#include "qatomiccaster_p.h"
+#include "qdecimal_p.h"
+#include "qderivedinteger_p.h"
+#include "qderivedstring_p.h"
+#include "qinteger_p.h"
+#include "qvalidationerror_p.h"
+
+/**
+ * @file
+ * @short Contains classes sub-classing AtomicCaster and which
+ * are responsible of casting an atomic value to another type.
+ */
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+
+    /**
+     * @short Casts any atomic value to @c xs:string.
+     *
+     * This class uses Item::stringValue() for retrieving a string
+     * representation, and thus supports casting from atomic values
+     * of any type.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    template<TypeOfDerivedString DerivedType>
+    class ToStringCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const
+        {
+            Q_ASSERT(from);
+            return DerivedString<DerivedType>::fromLexical(context->namePool(), from.stringValue());
+        }
+    };
+
+    /**
+     * @short Casts any atomic value to @c xs:untypedAtomic.
+     *
+     * This class uses Item::stringValue() for retrieving a string
+     * representation, and thus supports casting from atomic values
+     * of any type. The implementation is similar to ToStringCaster.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class ToUntypedAtomicCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a string value to @c xs:anyURI.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class ToAnyURICaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:hexBinary atomic value to @c xs:base64Binary.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class HexBinaryToBase64BinaryCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:base64Binary atomic value to @c xs:hexBinary.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class Base64BinaryToHexBinaryCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:base64Binary.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringToBase64BinaryCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:hexBinary.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringToHexBinaryCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts any @c numeric value to @c xs:boolean.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class NumericToBooleanCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts any string value, @c xs:string or @c xs:untypedAtomic, to @c xs:boolean.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringToBooleanCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c numeric value, such as @c xs:double or @c xs:decimal, to @c xs:integer or
+     * @c xs:decimal, depending on IsInteger.
+     *
+     * castFrom() uses Numeric::toInteger() for doing the actual casting.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    template <const bool IsInteger>
+    class NumericToDecimalCaster : public AtomicCaster
+    {
+    public:
+        /**
+         * Used by NumericToDerivedIntegerCaster in addition to this class.
+         */
+        static inline QString errorMessage()
+        {
+            return QtXmlPatterns::tr("When casting to %1 from %2, the source value cannot be %3.");
+        }
+
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const
+        {
+            const ItemType::Ptr t(from.type());
+            const Numeric *const num = from.template as<Numeric>();
+
+            if(BuiltinTypes::xsDouble->xdtTypeMatches(t) || BuiltinTypes::xsFloat->xdtTypeMatches(t))
+            {
+                if(num->isInf() || num->isNaN())
+                {
+                    return ValidationError::createError(errorMessage()
+                                                        .arg(formatType(context->namePool(), IsInteger ? BuiltinTypes::xsInteger : BuiltinTypes::xsDecimal))
+                                                        .arg(formatType(context->namePool(), t))
+                                                        .arg(formatData(num->stringValue())),
+                                                        ReportContext::FOCA0002);
+                }
+            }
+
+            if(IsInteger)
+                return Integer::fromValue(num->toInteger());
+            else
+                return toItem(Decimal::fromValue(num->toDecimal()));
+        }
+    };
+
+    /**
+     * @short Casts a string value, @c xs:string or @c xs:untypedAtomic, to @c xs:decimal.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringToDecimalCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a string value, @c xs:string or @c xs:untypedAtomic, to @c xs:integer.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringToIntegerCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a value of type @c xs:boolean to @c xs:decimal.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class BooleanToDecimalCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a value of type @c xs:boolean to @c xs:integer.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class BooleanToIntegerCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a value to itself. Essentially, this AtomicCaster does nothing.
+     *
+     * Casting a value to the type of itself is defined to be a noop,
+     * no operation. When it can be statically detected that will be done,
+     * CastAs rewrites itself appropriately during compilation, but
+     * in some cases insufficent data is available at compile time and then
+     * is this class need on a case-per-case base at evaluation time.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class SelfToSelfCaster : public AtomicCaster
+    {
+    public:
+
+        /**
+         * This function simply returns @p from.
+         */
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:gYear.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringToGYearCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:gDay.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringToGDayCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:gMonth.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringToGMonthCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:gYearMonth.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringToGYearMonthCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:gYearMonth.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringToGMonthDayCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:dateTime.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringToDateTimeCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:time.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringToTimeCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:date.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringToDateCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:duration.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringToDurationCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:dayTimeDuration.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringToDayTimeDurationCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:yearMonthDuration.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringToYearMonthDurationCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+
+    /**
+     * @short Casts a @c xs:date or @c xs:dateTime atomic value to @c xs:gYear.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AbstractDateTimeToGYearCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:date or @c xs:dateTime atomic value to @c xs:gYearMonth.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AbstractDateTimeToGYearMonthCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:date or @c xs:dateTime atomic value to @c xs:gMonth.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AbstractDateTimeToGMonthCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:date or @c xs:dateTime atomic value to @c xs:gMonthDay.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AbstractDateTimeToGMonthDayCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts a @c xs:date or @c xs:dateTime atomic value to @c xs:gDay.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AbstractDateTimeToGDayCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts an AbstractDateTime instance to DateTime.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AbstractDateTimeToDateTimeCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts an AbstractDateTime instance to SchemaTime.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AbstractDateTimeToDateCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts an AbstractDateTime instance to SchemaTime.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AbstractDateTimeToTimeCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts an AbstractDuration instance to Duration.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AbstractDurationToDurationCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts an AbstractDuration instance to DayTimeDuration.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AbstractDurationToDayTimeDurationCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts an AbstractDuration instance to YearMonthDuration.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AbstractDurationToYearMonthDurationCaster : public AtomicCaster
+    {
+    public:
+        virtual Item castFrom(const Item &from,
+                              const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Casts an @c xs:string instance to a derived type of @c xs:integer.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    template<TypeOfDerivedInteger type>
+    class StringToDerivedIntegerCaster : public AtomicCaster
+    {
+    public:
+        virtual Item
+        castFrom(const Item &from,
+                 const QExplicitlySharedDataPointer<DynamicContext> &context) const
+        {
+            return DerivedInteger<type>::fromLexical(context->namePool(), from.stringValue());
+        }
+    };
+
+    /**
+     * @short Casts an @c xs:boolean instance to a derived type of @c xs:integer.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    template<TypeOfDerivedInteger type>
+    class BooleanToDerivedIntegerCaster : public AtomicCaster
+    {
+    public:
+        virtual Item
+        castFrom(const Item &from,
+                 const QExplicitlySharedDataPointer<DynamicContext> &context) const
+        {
+            return DerivedInteger<type>::fromValue(context->namePool(), from.template as<AtomicValue>()->evaluateEBV(context) ? 1 : 0);
+        }
+    };
+
+    /**
+     * @short Casts an @c xs:boolean instance to a derived type of @c xs:integer.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    template<TypeOfDerivedString type>
+    class AnyToDerivedStringCaster : public AtomicCaster
+    {
+    public:
+        virtual Item
+        castFrom(const Item &from,
+                 const QExplicitlySharedDataPointer<DynamicContext> &context) const
+        {
+            return DerivedString<type>::fromLexical(context->namePool(), from.stringValue());
+        }
+    };
+
+    /**
+     * @short Casts any @c numeric instance to a derived type of @c xs:integer.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    template<TypeOfDerivedInteger type>
+    class NumericToDerivedIntegerCaster : public AtomicCaster
+    {
+    public:
+        virtual Item
+        castFrom(const Item &from,
+                 const QExplicitlySharedDataPointer<DynamicContext> &context) const
+        {
+            const ItemType::Ptr t(from.type());
+            const Numeric *const num = from.template as<Numeric>();
+
+            if(BuiltinTypes::xsDouble->xdtTypeMatches(t) || BuiltinTypes::xsFloat->xdtTypeMatches(t))
+            {
+                if(num->isInf() || num->isNaN())
+                {
+                    return ValidationError::createError(NumericToDecimalCaster<false>::errorMessage()
+                                                        .arg(formatType(context->namePool(), DerivedInteger<type>::itemType()))
+                                                        .arg(formatType(context->namePool(), t))
+                                                        .arg(formatData(num->stringValue())),
+                                                        ReportContext::FOCA0002);
+                }
+            }
+
+            return toItem(DerivedInteger<type>::fromValue(context->namePool(), from.template as<Numeric>()->toInteger()));
+        }
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qatomiccomparator.cpp b/src/xmlpatterns/data/qatomiccomparator.cpp
new file mode 100644
index 0000000..c0bf3b9
--- /dev/null
+++ b/src/xmlpatterns/data/qatomiccomparator.cpp
@@ -0,0 +1,118 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 <QString>
+
+#include "qatomiccomparator_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+AtomicComparator::AtomicComparator()
+{
+}
+
+AtomicComparator::~AtomicComparator()
+{
+}
+
+AtomicComparator::ComparisonResult
+AtomicComparator::compare(const Item &,
+                          const AtomicComparator::Operator,
+                          const Item &) const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO, "This function should never be called.");
+    return LessThan;
+}
+
+QString AtomicComparator::displayName(const AtomicComparator::Operator op,
+                                      const ComparisonType type)
+{
+    Q_ASSERT(type == AsGeneralComparison || type == AsValueComparison);
+    if(type == AsGeneralComparison)
+    {
+        switch(op)
+        {
+            case OperatorEqual:
+                return QLatin1String("=");
+            case OperatorGreaterOrEqual:
+                return QLatin1String("<=");
+            case OperatorGreaterThan:
+                return QLatin1String("<");
+            case OperatorLessOrEqual:
+                return QLatin1String(">=");
+            case OperatorLessThanNaNLeast:
+            /* Fallthrough. */
+            case OperatorLessThanNaNGreatest:
+            /* Fallthrough. */
+            case OperatorLessThan:
+                return QLatin1String(">");
+            case OperatorNotEqual:
+                return QLatin1String("!=");
+        }
+    }
+
+    switch(op)
+    {
+        case OperatorEqual:
+            return QLatin1String("eq");
+        case OperatorGreaterOrEqual:
+            return QLatin1String("ge");
+        case OperatorGreaterThan:
+            return QLatin1String("gt");
+        case OperatorLessOrEqual:
+            return QLatin1String("le");
+        case OperatorLessThanNaNLeast:
+        /* Fallthrough. */
+        case OperatorLessThanNaNGreatest:
+        /* Fallthrough. */
+        case OperatorLessThan:
+            return QLatin1String("lt");
+        case OperatorNotEqual:
+            return QLatin1String("ne");
+    }
+
+    Q_ASSERT(false);
+    return QString(); /* GCC unbarfer. */
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qatomiccomparator_p.h b/src/xmlpatterns/data/qatomiccomparator_p.h
new file mode 100644
index 0000000..304bd92
--- /dev/null
+++ b/src/xmlpatterns/data/qatomiccomparator_p.h
@@ -0,0 +1,223 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_AtomicComparator_H
+#define Patternist_AtomicComparator_H
+
+#include <QFlags>
+
+#include "qitem_p.h"
+#include "qatomictypedispatch_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QString;
+
+namespace QPatternist
+{
+
+    /**
+     * @short Base class for classes responsible of comparing two atomic values.
+     *
+     * This class is also known as the AtomicParrot.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class Q_AUTOTEST_EXPORT AtomicComparator : public AtomicTypeVisitorResult
+    {
+    public:
+        AtomicComparator();
+        virtual ~AtomicComparator();
+
+        typedef QExplicitlySharedDataPointer<AtomicComparator> Ptr;
+
+        /**
+         * Identifies operators used in value comparisons.
+         *
+         * The enum values are bit-significant.
+         *
+         * @see <a href="http://www.w3.org/TR/xpath20/#id-value-comparisons">W3C XML Path
+         * Language (XPath) 2.0, 3.5.1 Value Comparisons</a>
+         */
+        enum Operator
+        {
+            /**
+             * Operator <tt>eq</tt> and <tt>=</tt>.
+             */
+            OperatorEqual           = 1,
+
+            /**
+             * Operator <tt>ne</tt> and <tt>!=</tt>.
+             */
+            OperatorNotEqual        = 1 << 1,
+
+            /**
+             * Operator <tt>gt</tt> and <tt>\></tt>.
+             */
+            OperatorGreaterThan     = 1 << 2,
+
+            /**
+             * Operator <tt>lt</tt> and <tt>\<</tt>.
+             */
+            OperatorLessThan        = 1 << 3,
+
+            /**
+             * One of the operators we use for sorting. The only difference from
+             * OperatorLessThan is that it sees NaN as ordered and smaller than
+             * other numbers.
+             */
+            OperatorLessThanNaNLeast    = 1 << 4,
+
+            /**
+             * One of the operators we use for sorting. The only difference from
+             * OperatorLessThanLeast is that it sees NaN as ordered and larger than
+             * other numbers.
+             */
+            OperatorLessThanNaNGreatest    = 1 << 5,
+
+            /**
+             * Operator <tt>ge</tt> and <tt>\>=</tt>.
+             */
+            OperatorGreaterOrEqual  = OperatorEqual | OperatorGreaterThan,
+
+            /**
+             * Operator <tt>le</tt> and <tt>\<=</tt>.
+             */
+            OperatorLessOrEqual     = OperatorEqual | OperatorLessThan
+        };
+
+        typedef QFlags<Operator> Operators;
+
+        /**
+         * Signifies the result of a value comparison. This is used for value comparisons,
+         * and in the future likely also for sorting.
+         *
+         * @see <a href="http://www.w3.org/TR/xpath20/#id-value-comparisons">W3C XML Path
+         * Language (XPath) 2.0, 3.5.1 Value Comparisons</a>
+         */
+        enum ComparisonResult
+        {
+            LessThan     = 1,
+            Equal        = 2,
+            GreaterThan  = 4,
+            Incomparable = 8
+        };
+
+        /**
+         * Compares @p op1 and @p op2 and determines the relationship between the two. This
+         * is used for sorting and comparisons. The implementation performs an assert crash,
+         * and must therefore be re-implemented if comparing the relevant values should be
+         * possible.
+         *
+         * @param op1 the first operand
+         * @param op the operator. How a comparison is carried out shouldn't depend on what the
+         * operator is, but in some cases it is of interest.
+         * @param op2 the second operand
+         */
+        virtual ComparisonResult compare(const Item &op1,
+                                         const AtomicComparator::Operator op,
+                                         const Item &op2) const;
+
+        /**
+         * Determines whether @p op1 and @p op2 are equal. It is the same as calling compare()
+         * and checking whether the return value is Equal, but since comparison testing is such
+         * a common operation, this specialized function exists.
+         *
+         * @returns true if @p op1 and @p op2 are equal.
+         *
+         * @param op1 the first operand
+         * @param op2 the second operand
+         */
+        virtual bool equals(const Item &op1,
+                            const Item &op2) const = 0;
+
+        /**
+         * Identifies the kind of comparison.
+         */
+        enum ComparisonType
+        {
+            /**
+             * Identifies a general comparison; operator @c =, @c >, @c <=, and so on.
+             */
+            AsGeneralComparison = 1,
+
+            /**
+             * Identifies a value comparison; operator @c eq, @c lt, @c le, and so on.
+             */
+            AsValueComparison
+        };
+
+        /**
+         * Utility function for getting the lexical representation for
+         * the comparison operator @p op. Depending on the @p type argument,
+         * the string returned is either a general comparison or a value comparison
+         * operator.
+         *
+         * @param op the operator which the display name should be determined for.
+         * @param type signifies whether the returned display name should be for
+         * a value comparison or a general comparison. For example, if @p op is
+         * OperatorEqual and @p type is AsValueComparision, "eq" is returned.
+         */
+        static QString displayName(const AtomicComparator::Operator op,
+                                   const ComparisonType type);
+
+    };
+    Q_DECLARE_OPERATORS_FOR_FLAGS(AtomicComparator::Operators)
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qatomiccomparators.cpp b/src/xmlpatterns/data/qatomiccomparators.cpp
new file mode 100644
index 0000000..38d7092
--- /dev/null
+++ b/src/xmlpatterns/data/qatomiccomparators.cpp
@@ -0,0 +1,386 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qabstractduration_p.h"
+#include "qabstractdatetime_p.h"
+#include "qbase64binary_p.h"
+#include "qboolean_p.h"
+#include "qdynamiccontext_p.h"
+#include "qqnamevalue_p.h"
+
+#include "qatomiccomparators_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+/* -------------------------------------------------- */
+AtomicComparator::ComparisonResult
+StringComparator::compare(const Item &o1,
+                          const AtomicComparator::Operator,
+                          const Item &o2) const
+{
+    const int result = QString::compare(o1.stringValue(), o2.stringValue());
+
+    if(result > 0)
+        return GreaterThan;
+    else if(result < 0)
+        return LessThan;
+    else
+    {
+        Q_ASSERT(result == 0);
+        return Equal;
+    }
+}
+
+bool StringComparator::equals(const Item &o1,
+                              const Item &o2) const
+{
+    return o1.stringValue() == o2.stringValue();
+}
+/* -------------------------------------------------- */
+
+/* -------------------------------------------------- */
+AtomicComparator::ComparisonResult
+CaseInsensitiveStringComparator::compare(const Item &o1,
+                                           const AtomicComparator::Operator,
+                                           const Item &o2) const
+{
+    const QString i1(o1.stringValue().toLower());
+    const QString i2(o2.stringValue().toLower());
+    const int result = QString::compare(i1, i2);
+
+    if(result > 0)
+        return GreaterThan;
+    else if(result < 0)
+        return LessThan;
+    else
+    {
+        Q_ASSERT(result == 0);
+        return Equal;
+    }
+}
+
+bool CaseInsensitiveStringComparator::equals(const Item &o1,
+                                             const Item &o2) const
+{
+    const QString s1(o1.stringValue());
+    const QString s2(o2.stringValue());
+
+    return s1.length() == s2.length() &&
+           s1.startsWith(s2, Qt::CaseInsensitive);
+}
+/* -------------------------------------------------- */
+
+/* -------------------------------------------------- */
+bool BinaryDataComparator::equals(const Item &o1,
+                                  const Item &o2) const
+{
+    return o1.as<Base64Binary>()->asByteArray() ==
+           o2.as<Base64Binary>()->asByteArray();
+}
+/* -------------------------------------------------- */
+
+/* -------------------------------------------------- */
+AtomicComparator::ComparisonResult
+BooleanComparator::compare(const Item &o1,
+                           const AtomicComparator::Operator,
+                           const Item &o2) const
+{
+    /* We know Boolean::evaluateEBV doesn't use the DynamicContext. */
+    const bool v1 = o1.as<AtomicValue>()->evaluateEBV(QExplicitlySharedDataPointer<DynamicContext>());
+    const bool v2 = o2.as<AtomicValue>()->evaluateEBV(QExplicitlySharedDataPointer<DynamicContext>());
+
+    if(v1 == v2)
+        return Equal;
+    else if(v1 == false)
+    {
+        Q_ASSERT(v2 == true);
+        return LessThan;
+    }
+    else
+    {
+        Q_ASSERT(v1 == true && v2 == false);
+        return GreaterThan;
+    }
+}
+
+bool BooleanComparator::equals(const Item &o1,
+                               const Item &o2) const
+{
+    /* Boolean is an atomic class. */
+    return o1.as<AtomicValue>() == o2.as<AtomicValue>();
+}
+/* -------------------------------------------------- */
+
+/* -------------------------------------------------- */
+AtomicComparator::ComparisonResult
+AbstractFloatComparator::compare(const Item &o1,
+                                 const AtomicComparator::Operator op,
+                                 const Item &o2) const
+{
+    const xsDouble v1 = o1.as<Numeric>()->toDouble();
+    const xsDouble v2 = o2.as<Numeric>()->toDouble();
+
+    if(Double::isEqual(v1, v2))
+        return Equal;
+    else if(v1 < v2)
+        return LessThan;
+    else if(v1 > v2)
+        return GreaterThan;
+    else
+    {
+        /* We have NaN values. Make sure we don't return a result which would
+         * signify success for the operator in question. */
+        if((op & OperatorGreaterThan) == OperatorGreaterThan)
+            return LessThan;
+        else
+        {
+            Q_ASSERT((op & OperatorLessThan) == OperatorLessThan);
+            return GreaterThan;
+        }
+    }
+}
+
+bool AbstractFloatComparator::equals(const Item &o1,
+                                     const Item &o2) const
+{
+    return Double::isEqual(o1.as<Numeric>()->toDouble(), o2.as<Numeric>()->toDouble());
+}
+/* -------------------------------------------------- */
+
+/* -------------------------------------------------- */
+AtomicComparator::ComparisonResult
+DecimalComparator::compare(const Item &o1,
+                           const AtomicComparator::Operator,
+                           const Item &o2) const
+{
+    const xsDecimal v1 = o1.as<Numeric>()->toDecimal();
+    const xsDecimal v2 = o2.as<Numeric>()->toDecimal();
+
+    if(Double::isEqual(v1, v2))
+        return Equal;
+    else if(v1 < v2)
+        return LessThan;
+    else
+        return GreaterThan;
+}
+
+bool DecimalComparator::equals(const Item &o1,
+                               const Item &o2) const
+{
+    return Double::isEqual(o1.as<Numeric>()->toDecimal(), o2.as<Numeric>()->toDecimal());
+}
+/* -------------------------------------------------- */
+
+/* -------------------------------------------------- */
+AtomicComparator::ComparisonResult
+IntegerComparator::compare(const Item &o1,
+                           const AtomicComparator::Operator,
+                           const Item &o2) const
+{
+    const Numeric *const num1 = o1.as<Numeric>();
+    const Numeric *const num2 = o1.as<Numeric>();
+
+    /**
+     * Consider:
+     *  xs:unsignedLong("100") > xs:unsignedLong("18446744073709551615")
+     *
+     * If we perform math on the values as if they were xsInteger, the right
+     * operand overflows, wraps around, and the expression evaluates to false.
+     * Hence we have this code to deal with it.
+     *
+     * This is runtime code, it would have been better if we had separate
+     * AtomicComparator classes for signed and unsigned values, but the changes
+     * required to the lookup code are extensive.
+     */
+    if(num1->isSigned() || num2->isSigned())
+    {
+        const xsInteger v1 = o1.as<Numeric>()->toInteger();
+        const xsInteger v2 = o2.as<Numeric>()->toInteger();
+
+        if(v1 == v2)
+            return Equal;
+        else if(v1 < v2)
+            return LessThan;
+        else
+            return GreaterThan;
+    }
+    else
+    {
+        const qulonglong v1 = o1.as<Numeric>()->toUnsignedInteger();
+        const qulonglong v2 = o2.as<Numeric>()->toUnsignedInteger();
+
+        if(v1 == v2)
+            return Equal;
+        else if(v1 < v2)
+            return LessThan;
+        else
+            return GreaterThan;
+    }
+}
+
+bool IntegerComparator::equals(const Item &o1,
+                               const Item &o2) const
+{
+    return o1.as<Numeric>()->toInteger() == o2.as<Numeric>()->toInteger();
+}
+
+/* -------------------------------------------------- */
+
+/* -------------------------------------------------- */
+bool QNameComparator::equals(const Item &o1,
+                             const Item &o2) const
+{
+    return o1.as<QNameValue>()->m_qName ==
+           o2.as<QNameValue>()->m_qName;
+}
+/* -------------------------------------------------- */
+
+/* -------------------------------------------------- */
+bool AbstractDateTimeComparator::equals(const Item &o1,
+                                        const Item &o2) const
+{
+    const QDateTime dt1(o1.as<AbstractDateTime>()->toDateTime());
+    const QDateTime dt2(o2.as<AbstractDateTime>()->toDateTime());
+
+    /*
+    pDebug() << "COMPARING:"
+        << o1->as<AbstractDateTime>()->toDateTime().toString()
+           << o2->as<AbstractDateTime>()->toDateTime().toString();
+    pDebug() << "DATE ONLY:"
+        << o1->as<AbstractDateTime>()->toDateTime().isDateOnly()
+           << o2->as<AbstractDateTime>()->toDateTime().isDateOnly();
+           */
+    return dt1 == dt2 &&
+           dt1.timeSpec() == dt2.timeSpec();
+}
+
+AtomicComparator::ComparisonResult
+AbstractDateTimeComparator::compare(const Item &operand1,
+                                    const AtomicComparator::Operator,
+                                    const Item &operand2) const
+{
+    const QDateTime &dt1 = operand1.as<AbstractDateTime>()->toDateTime();
+    const QDateTime &dt2 = operand2.as<AbstractDateTime>()->toDateTime();
+
+    if(dt1 == dt2)
+        return Equal;
+    else if(dt1 < dt2)
+        return LessThan;
+    else
+        return GreaterThan;
+}
+/* -------------------------------------------------- */
+
+/* -------------------------------------------------- */
+bool AbstractDurationComparator::equals(const Item &o1,
+                                        const Item &o2) const
+{
+    /* We use AbstractDuration::operator==() */
+    return *o1.as<AbstractDuration>() ==
+           *o2.as<AbstractDuration>();
+}
+
+QDateTime AbstractDurationComparator::addDurationToDateTime(const QDateTime &dateTime,
+                                                            const AbstractDuration *const duration)
+{
+    QDateTime result(dateTime);
+    qint64 seconds = 0;
+
+    const qint8 signMultiplier = (duration->isPositive() ? 1 : -1);
+
+    result = result.addYears(signMultiplier * duration->years());
+    result = result.addMonths(signMultiplier * duration->months());
+    result = result.addDays(signMultiplier * duration->days());
+
+    seconds =  60 * 60 * duration->hours();
+    seconds += 60 * duration->minutes();
+    seconds += duration->seconds();
+
+    result = result.addSecs(signMultiplier * seconds);
+    result = result.addMSecs(signMultiplier * duration->mseconds());
+
+    return result;
+}
+
+AtomicComparator::ComparisonResult
+AbstractDurationComparator::compare(const Item &o1,
+                                    const AtomicComparator::Operator,
+                                    const Item &o2) const
+{
+    const AbstractDuration *const duration = o1.as<AbstractDuration>();
+    const AbstractDuration *const otherDuration = o2.as<AbstractDuration>();
+
+    const QDateTime dateTime1(QDate(1696, 9, 1), QTime(0, 0, 0), Qt::UTC);
+    const QDateTime dateTime2(QDate(1697, 2, 1), QTime(0, 0, 0), Qt::UTC);
+    const QDateTime dateTime3(QDate(1903, 3, 1), QTime(0, 0, 0), Qt::UTC);
+    const QDateTime dateTime4(QDate(1903, 7, 1), QTime(0, 0, 0), Qt::UTC);
+
+    const QDateTime durationDateTime1 = addDurationToDateTime(dateTime1, duration);
+    const QDateTime durationDateTime2 = addDurationToDateTime(dateTime2, duration);
+    const QDateTime durationDateTime3 = addDurationToDateTime(dateTime3, duration);
+    const QDateTime durationDateTime4 = addDurationToDateTime(dateTime4, duration);
+
+    const QDateTime otherDurationDateTime1 = addDurationToDateTime(dateTime1, otherDuration);
+    const QDateTime otherDurationDateTime2 = addDurationToDateTime(dateTime2, otherDuration);
+    const QDateTime otherDurationDateTime3 = addDurationToDateTime(dateTime3, otherDuration);
+    const QDateTime otherDurationDateTime4 = addDurationToDateTime(dateTime4, otherDuration);
+
+    if (durationDateTime1 > otherDurationDateTime1 &&
+        durationDateTime2 > otherDurationDateTime2 &&
+        durationDateTime3 > otherDurationDateTime3 &&
+        durationDateTime4 > otherDurationDateTime4) {
+        return GreaterThan;
+    } else if (durationDateTime1 < otherDurationDateTime1 &&
+               durationDateTime2 < otherDurationDateTime2 &&
+               durationDateTime3 < otherDurationDateTime3 &&
+               durationDateTime4 < otherDurationDateTime4) {
+        return LessThan;
+    } else if (*duration == *otherDuration) {
+        return Equal;
+    } else {
+        return Incomparable;
+    }
+}
+
+/* -------------------------------------------------- */
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qatomiccomparators_p.h b/src/xmlpatterns/data/qatomiccomparators_p.h
new file mode 100644
index 0000000..614916f
--- /dev/null
+++ b/src/xmlpatterns/data/qatomiccomparators_p.h
@@ -0,0 +1,298 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_AtomicComparators_H
+#define Patternist_AtomicComparators_H
+
+#include "qabstractfloat_p.h"
+#include "qatomiccomparator_p.h"
+#include "qprimitives_p.h"
+
+/**
+ * @file
+ * @short Contains all the classes implementing comparisons between atomic values.
+ */
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Performs case @em sensitive string comparison
+     * between @c xs:anyUri, @c xs:string, and @c xs:untypedAtomic.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class StringComparator : public AtomicComparator
+    {
+    public:
+        /**
+         * Compares two strings, and returns the appropriate AtomicComparator::ComparisonResult enum. This
+         * is a bit simplified version of string comparison as defined in the XPath specifications,
+         * since this does not take any string collations into account(which an implementation neither
+         * is required to do).
+         *
+         * @see <a href="http://www.w3.org/TR/xpath-functions/#string-compare">XQuery 1.0 and XPath
+         * 2.0 Functions and Operators, 7.3 ValueComparison::Equality and Comparison of Strings</a>
+         */
+        virtual ComparisonResult compare(const Item &op1,
+                                         const AtomicComparator::Operator op,
+                                         const Item &op2) const;
+
+        /**
+         * Compares two strings, and returns @c true if they are considered equal as per
+         * an ordinary string comparison. In other words, this is an implementation with
+         * the Unicode code point collation.
+         *
+         * @see <a href="http://www.w3.org/TR/xpath-functions/#string-compare">XQuery 1.0 and XPath
+         * 2.0 Functions and Operators, 7.3 ValueComparison::Equality and Comparison of Strings</a>
+         */
+        virtual bool equals(const Item &op1,
+                            const Item &op2) const;
+    };
+
+    /**
+     * @short Performs case @em insensitive string comparison
+     * between @c xs:anyUri, @c xs:string, and @c xs:untypedAtomic.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class CaseInsensitiveStringComparator : public AtomicComparator
+    {
+    public:
+        /**
+         * Converts both string values to upper case and afterwards compare them.
+         */
+        virtual ComparisonResult compare(const Item &op1,
+                                         const AtomicComparator::Operator op,
+                                         const Item &op2) const;
+
+        /**
+         * Converts both string values case insensitively.
+         */
+        virtual bool equals(const Item &op1,
+                            const Item &op2) const;
+    };
+
+    /**
+     * @short Compares @c xs:base64Binary and @c xs:hexBinary values.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class BinaryDataComparator : public AtomicComparator
+    {
+    public:
+        virtual bool equals(const Item &op1,
+                            const Item &op2) const;
+    };
+
+    /**
+     * @short Compares @c xs:boolean values.
+     *
+     * This is done via the object's Boolean::evaluteEBV() function.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class BooleanComparator : public AtomicComparator
+    {
+    public:
+        virtual ComparisonResult compare(const Item &op1,
+                                         const AtomicComparator::Operator op,
+                                         const Item &op2) const;
+
+        virtual bool equals(const Item &op1,
+                            const Item &op2) const;
+    };
+
+    /**
+     * @short Compares @c xs:double values.
+     *
+     * @todo Add docs about numeric promotion
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AbstractFloatComparator : public AtomicComparator
+    {
+    public:
+        virtual ComparisonResult compare(const Item &op1,
+                                         const AtomicComparator::Operator op,
+                                         const Item &op2) const;
+
+        virtual bool equals(const Item &op1,
+                            const Item &op2) const;
+    };
+
+    /**
+     * @short Compares @c xs:double values for the purpose of sorting.
+     *
+     * @todo Add docs about numeric promotion
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    template<const AtomicComparator::Operator t_op>
+    class AbstractFloatSortComparator : public AbstractFloatComparator
+    {
+    public:
+        virtual ComparisonResult compare(const Item &o1,
+                                         const AtomicComparator::Operator op,
+                                         const Item &o2) const
+        {
+            Q_ASSERT_X(t_op == OperatorLessThanNaNLeast || t_op == OperatorLessThanNaNGreatest, Q_FUNC_INFO,
+                       "Can only be instantiated with those two.");
+            Q_ASSERT(op == t_op);
+            Q_UNUSED(op); /* Needed when building in release mode. */
+
+            const xsDouble v1 = o1.template as<Numeric>()->toDouble();
+            const xsDouble v2 = o2.template as<Numeric>()->toDouble();
+
+            if(qIsNaN(v1) && !qIsNaN(v2))
+                return t_op == OperatorLessThanNaNLeast ? LessThan : GreaterThan;
+            if(!qIsNaN(v1) && qIsNaN(v2))
+                return t_op == OperatorLessThanNaNLeast ? GreaterThan : LessThan;
+
+            if(Double::isEqual(v1, v2))
+                return Equal;
+            else if(v1 < v2)
+                return LessThan;
+            else
+                return GreaterThan;
+        }
+
+    };
+
+    /**
+     * @short Compares @c xs:decimal values.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class DecimalComparator : public AtomicComparator
+    {
+    public:
+        virtual ComparisonResult compare(const Item &op1,
+                                         const AtomicComparator::Operator op,
+                                         const Item &op2) const;
+
+        virtual bool equals(const Item &op1,
+                            const Item &op2) const;
+    };
+
+    /**
+     * @short Compares @c xs:integer values.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class IntegerComparator : public AtomicComparator
+    {
+    public:
+        virtual ComparisonResult compare(const Item &op1,
+                                         const AtomicComparator::Operator op,
+                                         const Item &op2) const;
+
+        virtual bool equals(const Item &op1,
+                            const Item &op2) const;
+    };
+
+    /**
+     * @short Compares @c xs:QName values.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class QNameComparator : public AtomicComparator
+    {
+    public:
+        virtual bool equals(const Item &op1,
+                            const Item &op2) const;
+    };
+
+    /**
+     * @short Compares sub-classes of AbstractDateTime.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AbstractDateTimeComparator : public AtomicComparator
+    {
+    public:
+        virtual ComparisonResult compare(const Item &op1,
+                                         const AtomicComparator::Operator op,
+                                         const Item &op2) const;
+        virtual bool equals(const Item &op1,
+                            const Item &op2) const;
+    };
+
+    /**
+     * @short Compares sub-classes of AbstractDuration.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AbstractDurationComparator : public AtomicComparator
+    {
+    public:
+        virtual ComparisonResult compare(const Item &op1,
+                                         const AtomicComparator::Operator op,
+                                         const Item &op2) const;
+        virtual bool equals(const Item &op1,
+                            const Item &op2) const;
+
+    private:
+        static inline QDateTime addDurationToDateTime(const QDateTime &dateTime,
+                                                      const AbstractDuration *const duration);
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qatomicmathematician.cpp b/src/xmlpatterns/data/qatomicmathematician.cpp
new file mode 100644
index 0000000..ddd27a9
--- /dev/null
+++ b/src/xmlpatterns/data/qatomicmathematician.cpp
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qatomicmathematician_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+AtomicMathematician::~AtomicMathematician()
+{
+}
+
+QString AtomicMathematician::displayName(const AtomicMathematician::Operator op)
+{
+    switch(op)
+    {
+        case AtomicMathematician::Div:
+            return QLatin1String("div");
+        case AtomicMathematician::IDiv:
+            return QLatin1String("idiv");
+        case AtomicMathematician::Substract:
+            return QLatin1String("-");
+        case AtomicMathematician::Mod:
+            return QLatin1String("mod");
+        case AtomicMathematician::Multiply:
+            return QLatin1String("*");
+        case AtomicMathematician::Add:
+            return QLatin1String("+");
+    }
+
+    return QString(); /* Silence GCC warning. */
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qatomicmathematician_p.h b/src/xmlpatterns/data/qatomicmathematician_p.h
new file mode 100644
index 0000000..a61e1b0
--- /dev/null
+++ b/src/xmlpatterns/data/qatomicmathematician_p.h
@@ -0,0 +1,136 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_AtomicMathematician_H
+#define Patternist_AtomicMathematician_H
+
+#include <QFlags>
+
+#include "qdynamiccontext_p.h"
+#include "qitem_p.h"
+#include "qatomictypedispatch_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Base class for classes that performs arithmetic operations between atomic values.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class Q_AUTOTEST_EXPORT AtomicMathematician : public AtomicTypeVisitorResult
+    {
+    public:
+        virtual ~AtomicMathematician();
+
+        typedef QExplicitlySharedDataPointer<AtomicMathematician> Ptr;
+
+        enum Operator
+        {
+            /**
+             * @see <a href="http://www.w3.org/TR/xpath-functions/#func-numeric-divide">XQuery 1.0
+             * and XPath 2.0 Functions and Operators, 6.2.4 op:numeric-divide</a>
+             */
+            Div         = 1,
+
+            /**
+             * @see <a href="http://www.w3.org/TR/xpath-functions/#func-numeric-integer-divide">XQuery 1.0
+             * and XPath 2.0 Functions and Operators, 6.2.5 op:numeric-integer-divide</a>
+             */
+            IDiv        = 2,
+
+            /**
+             * @see <a href="http://www.w3.org/TR/xpath-functions/#func-numeric-subtract">XQuery 1.0
+             * and XPath 2.0 Functions and Operators, 6.2.2 op:numeric-subtract</a>
+             */
+            Substract   = 4,
+
+            /**
+             * @see <a href="http://www.w3.org/TR/xpath-functions/#func-numeric-mod">XQuery 1.0
+             * and XPath 2.0 Functions and Operators, 6.2.6 op:numeric-mod</a>
+             */
+            Mod         = 8,
+
+            /**
+             * @see <a href="http://www.w3.org/TR/xpath-functions/#func-numeric-multiply">XQuery 1.0
+             * and XPath 2.0 Functions and Operators, 6.2.3 op:numeric-multiply</a>
+             */
+            Multiply    = 16,
+
+            /**
+             * @see <a href="http://www.w3.org/TR/xpath-functions/#func-numeric-add">XQuery 1.0
+             * and XPath 2.0 Functions and Operators, 6.2.1 op:numeric-add</a>
+             */
+            Add         = 32
+        };
+
+        typedef QFlags<Operator> Operators;
+
+        virtual Item calculate(const Item &operand1,
+                                    const Operator op,
+                                    const Item &operand2,
+                                    const QExplicitlySharedDataPointer<DynamicContext> &context) const = 0;
+
+        static QString displayName(const AtomicMathematician::Operator op);
+
+    };
+    Q_DECLARE_OPERATORS_FOR_FLAGS(AtomicMathematician::Operators)
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qatomicmathematicians.cpp b/src/xmlpatterns/data/qatomicmathematicians.cpp
new file mode 100644
index 0000000..3c6ce40
--- /dev/null
+++ b/src/xmlpatterns/data/qatomicmathematicians.cpp
@@ -0,0 +1,352 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 <math.h>
+
+#include <qnumeric.h>
+
+#include "qabstractdatetime_p.h"
+#include "qabstractduration_p.h"
+#include "qabstractfloat_p.h"
+#include "qdaytimeduration_p.h"
+#include "qdecimal_p.h"
+#include "qinteger_p.h"
+#include "qpatternistlocale_p.h"
+
+#include "qatomicmathematicians_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+/* The translation strings is place here once, in order to reduce work for translators,
+ * and provide consistency. */
+
+static inline QString idivZeroInvalid()
+{
+    return QtXmlPatterns::tr("Integer division (%1) by zero (%2) is undefined.")
+             .arg(formatKeyword("idiv"))
+             .arg(formatData("0"));
+}
+
+static inline QString divZeroInvalid()
+{
+    return QtXmlPatterns::tr("Division (%1) by zero (%2) is undefined.")
+             .arg(formatKeyword("div"))
+             .arg(formatData("0"));
+}
+
+static inline QString modZeroInvalid()
+{
+    return QtXmlPatterns::tr("Modulus division (%1) by zero (%2) is undefined.")
+             .arg(formatKeyword("mod"))
+             .arg(formatData("0"));
+}
+
+Item DecimalMathematician::calculate(const Item &o1,
+                                     const Operator op,
+                                     const Item &o2,
+                                     const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+    switch(op)
+    {
+        case Div:
+        {
+            if(o2.as<Numeric>()->toInteger() == 0)
+            {
+                context->error(divZeroInvalid(), ReportContext::FOAR0001, this);
+                return Item(); /* Silences source code analyzer warning. */
+            }
+            else
+                return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() / o2.as<Numeric>()->toDecimal()));
+        }
+        case IDiv:
+        {
+            if(o2.as<Numeric>()->toInteger() == 0)
+            {
+                context->error(idivZeroInvalid(), ReportContext::FOAR0001, this);
+                return Item(); /* Silences source code analyzer warning. */
+            }
+            else
+                return Integer::fromValue(static_cast<xsInteger>(o1.as<Numeric>()->toDecimal() /
+                                                                 o2.as<Numeric>()->toDecimal()));
+        }
+        case Substract:
+            return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() - o2.as<Numeric>()->toDecimal()));
+        case Mod:
+        {
+            if(o2.as<Numeric>()->toInteger() == 0)
+            {
+                context->error(modZeroInvalid(), ReportContext::FOAR0001, this);
+                return Item(); /* Silences source code analyzer warning. */
+            }
+            else
+                return toItem(Decimal::fromValue(::fmod(o1.as<Numeric>()->toDecimal(), o2.as<Numeric>()->toDecimal())));
+        }
+        case Multiply:
+            return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() * o2.as<Numeric>()->toDecimal()));
+        case Add:
+            return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() + o2.as<Numeric>()->toDecimal()));
+    }
+
+    Q_ASSERT(false);
+    return Item(); /* GCC unbarfer. */
+}
+
+Item IntegerMathematician::calculate(const Item &o1,
+                                     const Operator op,
+                                     const Item &o2,
+                                     const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+    switch(op)
+    {
+        case Div:
+            if(o2.as<Numeric>()->toInteger() == 0)
+            {
+                context->error(divZeroInvalid(), ReportContext::FOAR0001, this);
+                return Item(); /* Silences source code analyzer warning. */
+            }
+            else /* C++ automatically performs truncation of long integer(xsInteger). */
+                return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() / o2.as<Numeric>()->toDecimal()));
+        case IDiv:
+        {
+            if(o2.as<Numeric>()->toInteger() == 0)
+            {
+                context->error(idivZeroInvalid(), ReportContext::FOAR0001, this);
+                return Item(); /* Silences source code analyzer warning. */
+            }
+            else /* C++ automatically performs truncation of long integer(xsInteger). */
+                return Integer::fromValue(o1.as<Numeric>()->toInteger() / o2.as<Numeric>()->toInteger());
+        }
+        case Substract:
+            return Integer::fromValue(o1.as<Numeric>()->toInteger() - o2.as<Numeric>()->toInteger());
+        case Mod:
+        {
+            const xsInteger divisor = o2.as<Numeric>()->toInteger();
+
+            if(divisor == 0)
+            {
+                context->error(modZeroInvalid(), ReportContext::FOAR0001, this);
+                return Item(); /* Silences source code analyzer warning. */
+            }
+            else
+                return Integer::fromValue(o1.as<Numeric>()->toInteger() % divisor);
+        }
+        case Multiply:
+            return Integer::fromValue(o1.as<Numeric>()->toInteger() * o2.as<Numeric>()->toInteger());
+        case Add:
+            return Integer::fromValue(o1.as<Numeric>()->toInteger() + o2.as<Numeric>()->toInteger());
+    }
+
+    Q_ASSERT(false);
+    return Item(); /* GCC unbarfer. */
+}
+
+Item DurationNumericMathematician::calculate(const Item &o1,
+                                             const Operator op,
+                                             const Item &o2,
+                                             const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+    Q_ASSERT(op == Div || op == Multiply);
+
+    const AbstractDuration::Ptr duration(o1.as<AbstractDuration>());
+    const xsDouble dbl = o2.as<Numeric>()->toDouble();
+
+    switch(op)
+    {
+        case Div:
+        {
+            if(qIsInf(dbl))
+                return duration->fromValue(0);
+            else if(qIsNaN(dbl))
+            {
+                context->error(QtXmlPatterns::tr(
+                           "Dividing a value of type %1 by %2 (not-a-number) "
+                           "is not allowed.")
+                               .arg(formatType(context->namePool(),
+                                               duration->type()))
+                               .arg(formatData("NaN")),
+                               ReportContext::FOCA0005,
+                               this);
+                return Item();
+            }
+            else if(Double::isEqual(dbl, 0))
+            {
+                context->error(QtXmlPatterns::tr(
+                           "Dividing a value of type %1 by %2 or %3 (plus or "
+                           "minus zero) is not allowed.")
+                               .arg(formatType(context->namePool(),
+                                               duration->type()))
+                               .arg(formatData("-0"))
+                               .arg(formatData("0")),
+                               ReportContext::FODT0002,
+                               this);
+                return Item();
+            }
+
+            return duration->fromValue(static_cast<AbstractDuration::Value>(duration->value() / dbl));
+        }
+        case Multiply:
+        {
+            if(Double::isEqual(dbl, 0))
+                return duration->fromValue(0);
+            else if(qIsNaN(dbl))
+            {
+                context->error(QtXmlPatterns::tr(
+                           "Dividing a value of type %1 by %2 (not-a-number) "
+                           "is not allowed.")
+                               .arg(formatType(context->namePool(),
+                                               duration->type()))
+                               .arg(formatData("NaN")),
+                               ReportContext::FOCA0005,
+                               this);
+                return Item();
+            }
+            else if(qIsInf(dbl))
+            {
+                context->error(QtXmlPatterns::tr(
+                           "Multiplication of a value of type %1 by %2 or %3 "
+                           "(plus or minus infinity) is not allowed.")
+                               .arg(formatType(context->namePool(),
+                                               duration->type()))
+                               .arg(formatData("-INF"))
+                               .arg(formatData("INF")),
+                               ReportContext::FODT0002,
+                               this);
+                return Item();
+            }
+
+            return duration->fromValue(static_cast<AbstractDuration::Value>(duration->value() * dbl));
+        }
+        default:
+        {
+            Q_ASSERT(false);
+            return Item(); /* Silence warning. */
+        }
+    }
+}
+
+Item DurationDurationMathematician::calculate(const Item &o1,
+                                              const Operator op,
+                                              const Item &o2,
+                                              const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    const AbstractDuration::Ptr duration(o1.as<AbstractDuration>());
+    const AbstractDuration::Value op2 = o2.as<AbstractDuration>()->value();
+
+    switch(op)
+    {
+        case Div:
+            return toItem(Decimal::fromValue(static_cast<xsDecimal>(duration->value()) / op2));
+        case Substract:
+            return duration->fromValue(duration->value() - op2);
+        case Add:
+            return duration->fromValue(duration->value() + op2);
+        default:
+        {
+            Q_ASSERT(false);
+            return Item(); /* Silence warning. */
+        }
+    }
+}
+
+OperandSwitcherMathematician::
+OperandSwitcherMathematician(const AtomicMathematician::Ptr &mathematician) : m_mather(mathematician)
+{
+    Q_ASSERT(mathematician);
+}
+
+Item OperandSwitcherMathematician::calculate(const Item &o1,
+                                             const Operator op,
+                                             const Item &o2,
+                                             const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+    return m_mather->calculate(o2, op, o1, context);
+}
+
+
+Item DateTimeDurationMathematician::calculate(const Item &o1,
+                                              const Operator op,
+                                              const Item &o2,
+                                              const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+    Q_ASSERT(op == Substract || op == Add);
+
+    const AbstractDateTime::Ptr adt(o1.as<AbstractDateTime>());
+    const AbstractDuration::Ptr dur(o2.as<AbstractDuration>());
+    QDateTime dt(adt->toDateTime());
+    //pDebug() << "DateTimeDurationMathematician::calculate():" << dt.toString();
+    //dt.setDateOnly(false);
+    const qint8 sign = (op == Add ? 1 : -1) * (dur->isPositive() ? 1 : -1);
+
+    // TODO milli seconds
+    dt = dt.addSecs(sign * (dur->seconds() + dur->minutes() * 60 + dur->hours() * 60 * 60));
+    dt = dt.addDays(sign * dur->days());
+    dt = dt.addMonths(sign * dur->months());
+    dt = dt.addYears(sign * dur->years());
+
+    QString msg;
+
+    if(AbstractDateTime::isRangeValid(dt.date(), msg))
+        return adt->fromValue(dt);
+    else
+    {
+        context->error(msg, ReportContext::FODT0001,
+                       this);
+        return Item();
+    }
+}
+
+Item AbstractDateTimeMathematician::calculate(const Item &o1,
+                                              const Operator op,
+                                              const Item &o2,
+                                              const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    Q_ASSERT(op == Substract || op == Add);
+    QDateTime dt1(o1.as<AbstractDateTime>()->toDateTime());
+    QDateTime dt2(o2.as<AbstractDateTime>()->toDateTime());
+
+    const int diff = op == Add ? dt1.secsTo(dt2) : dt2.secsTo(dt1);
+
+    return toItem(DayTimeDuration::fromSeconds(diff));
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qatomicmathematicians_p.h b/src/xmlpatterns/data/qatomicmathematicians_p.h
new file mode 100644
index 0000000..607f303
--- /dev/null
+++ b/src/xmlpatterns/data/qatomicmathematicians_p.h
@@ -0,0 +1,249 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_AtomicMathematicians_H
+#define Patternist_AtomicMathematicians_H
+
+#include "qatomicmathematician_p.h"
+#include "qsourcelocationreflection_p.h"
+
+/**
+ * @file
+ * @short Contains classes performing arithemetic operations between atomic values, such as
+ * subtracting two dates.
+ */
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class DecimalMathematician : public AtomicMathematician
+                               , public DelegatingSourceLocationReflection
+    {
+    public:
+        inline DecimalMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
+        {
+        }
+
+        virtual Item calculate(const Item &o1,
+                               const Operator op,
+                               const Item &o2,
+                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Performs arithmetics between Integer values.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class IntegerMathematician : public AtomicMathematician
+                               , public DelegatingSourceLocationReflection
+    {
+    public:
+        inline IntegerMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
+        {
+        }
+
+        virtual Item calculate(const Item &o1,
+                               const Operator op,
+                               const Item &o2,
+                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Performs division or multiplication between either DayTimeDuration or YearMonthDuration
+     * and Double values.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class DurationNumericMathematician : public AtomicMathematician
+                                       , public DelegatingSourceLocationReflection
+    {
+    public:
+        inline DurationNumericMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
+        {
+        }
+
+        virtual Item calculate(const Item &o1,
+                               const Operator op,
+                               const Item &o2,
+                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Performs division between DayTimeDuration and DayTimeDuration, or
+     * YearMonthDuration and YearMonthDuration.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class DurationDurationDivisor : public AtomicMathematician
+    {
+    public:
+        virtual Item calculate(const Item &o1,
+                               const Operator op,
+                               const Item &o2,
+                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Performs arithmetics between DayTimeDuration and DayTimeDuration, or
+     * YearMonthDuration and YearMonthDuration.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class DurationDurationMathematician : public AtomicMathematician
+    {
+    public:
+        virtual Item calculate(const Item &o1,
+                               const Operator op,
+                               const Item &o2,
+                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Delegates an AtomicMathematician and switches its operands.
+     *
+     * Switches the operands of the call to a call to the calculate()
+     * on an AtomicMathematician such that the left operand becomes the right, and
+     * vice versa.
+     *
+     * Its constructor takes an AtomicMathematician instance which this OperandSwitcherMathematician
+     * should act as as a middle-man for, having the role of switching the two operands. Thus,
+     * OperandSwitcherMathematician can be described as a proxy or delegator class.
+     *
+     * This class is used for implementing operator combinations such as
+     * <tt>numeric * xs:yearMonthDuration</tt> and
+     * <tt>xs:yearMonthDuration * numeric</tt>.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class OperandSwitcherMathematician : public AtomicMathematician
+    {
+    public:
+        /**
+         * Creates an OperandSwitcherMathematician.
+         *
+         * @param mathematician the AtomicMathematician this OperandSwitcherMathematician
+         * should switch the operands for. Must be a non @c null, valid pointer.
+         */
+        OperandSwitcherMathematician(const AtomicMathematician::Ptr &mathematician);
+
+        /**
+         * Switch @p o1 and @p o2, and returns the value from the AtomicMathematician
+         * this OperandSwitcherMathematician represents.
+         */
+        virtual Item calculate(const Item &o1,
+                               const Operator op,
+                               const Item &o2,
+                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    private:
+        const AtomicMathematician::Ptr m_mather;
+    };
+
+    /**
+     * @short Performs arithmetics between an AbstractDateTime value and
+     * an AbstractDuration value.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class DateTimeDurationMathematician : public AtomicMathematician
+                                        , public DelegatingSourceLocationReflection
+    {
+    public:
+
+        inline DateTimeDurationMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
+        {
+        }
+
+        /**
+         * @p o1 is an AbstractDateTime and @p o2 is an AbstractDuration.
+         *
+         */
+        virtual Item calculate(const Item &o1,
+                               const Operator op,
+                               const Item &o2,
+                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+
+    /**
+     * @short Performs arithmetics between two AbstractDateTime values.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AbstractDateTimeMathematician : public AtomicMathematician
+    {
+    public:
+        virtual Item calculate(const Item &o1,
+                               const Operator op,
+                               const Item &o2,
+                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qatomicstring.cpp b/src/xmlpatterns/data/qatomicstring.cpp
new file mode 100644
index 0000000..134607f
--- /dev/null
+++ b/src/xmlpatterns/data/qatomicstring.cpp
@@ -0,0 +1,74 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qbuiltintypes_p.h"
+
+#include "qatomicstring_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+AtomicString::AtomicString(const QString &s) : m_value(s)
+{
+}
+
+AtomicString::Ptr AtomicString::fromValue(const QString &value)
+{
+    return AtomicString::Ptr(new AtomicString(value));
+}
+
+bool AtomicString::evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return m_value.length() > 0;
+}
+
+QString AtomicString::stringValue() const
+{
+    return m_value;
+}
+
+ItemType::Ptr AtomicString::type() const
+{
+    return BuiltinTypes::xsString;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qatomicstring_p.h b/src/xmlpatterns/data/qatomicstring_p.h
new file mode 100644
index 0000000..278b822
--- /dev/null
+++ b/src/xmlpatterns/data/qatomicstring_p.h
@@ -0,0 +1,123 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_String_H
+#define Patternist_String_H
+
+#include <QUrl>
+
+#include "qitem_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Implements the value instance of the @c xs:string type.
+     *
+     *
+     * This class was originally called String, and correspondingly the header
+     * file was called String.h. However, this broke building on OS X, which
+     * looks up file names case insensitively, and therefore found string.h.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     * @todo Documentation is missing/incomplete
+     */
+    class Q_AUTOTEST_EXPORT AtomicString : public AtomicValue
+    {
+    public:
+        friend class CommonValues;
+
+        typedef AtomicValue::Ptr Ptr;
+
+        /**
+         * Creates an instance representing @p value.
+         *
+         * @note This function does not remove the string literal escaping allowed in XPath 2.0
+         */
+        static AtomicString::Ptr fromValue(const QString &value);
+
+        static inline AtomicString::Ptr fromValue(const QUrl &value)
+        {
+            return fromValue(value.toString());
+        }
+
+        /**
+         * Get the Effective %Boolean Value of this string. A zero-length
+         * string has an effective boolean value of @c false, in all other cases @c true.
+         *
+         * @returns @c false if the contained string has a zero-length, otherwise @c true.
+         */
+        virtual bool evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const;
+
+        /**
+         * The string value of a AtomicString instance is the value space.
+         */
+        virtual QString stringValue() const;
+
+        virtual ItemType::Ptr type() const;
+
+    protected:
+        friend class StringComparator;
+        friend class CompareFN;
+        AtomicString(const QString &value);
+        const QString m_value;
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qatomicvalue.cpp b/src/xmlpatterns/data/qatomicvalue.cpp
new file mode 100644
index 0000000..a15a6b4
--- /dev/null
+++ b/src/xmlpatterns/data/qatomicvalue.cpp
@@ -0,0 +1,238 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 <QVariant>
+
+#include "qabstractdatetime_p.h"
+#include "qabstractfloat_p.h"
+#include "qatomicstring_p.h"
+#include "qatomictype_p.h"
+#include "qboolean_p.h"
+#include "qbuiltintypes_p.h"
+#include "qdate_p.h"
+#include "qschemadatetime_p.h"
+#include "qderivedinteger_p.h"
+#include "qdynamiccontext_p.h"
+#include "qgenericsequencetype_p.h"
+#include "qhexbinary_p.h"
+#include "qinteger_p.h"
+#include "qpatternistlocale_p.h"
+#include "qqnamevalue_p.h"
+#include "qschematime_p.h"
+#include "qvalidationerror_p.h"
+
+#include "qitem_p.h"
+
+QT_BEGIN_NAMESPACE
+
+/**
+ * @file
+ * @short Contains the implementation for AtomicValue. The definition is in qitem_p.h.
+ */
+
+using namespace QPatternist;
+
+AtomicValue::~AtomicValue()
+{
+}
+
+bool AtomicValue::evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+    context->error(QtXmlPatterns::tr("A value of type %1 cannot have an "
+                                     "Effective Boolean Value.")
+                      .arg(formatType(context->namePool(), type())),
+                      ReportContext::FORG0006,
+                      QSourceLocation());
+    return false; /* Silence GCC warning. */
+}
+
+bool AtomicValue::hasError() const
+{
+    return false;
+}
+
+QVariant AtomicValue::toQt(const AtomicValue *const value)
+{
+    Q_ASSERT_X(value, Q_FUNC_INFO,
+               "Internal error, a null pointer cannot be passed.");
+
+    const ItemType::Ptr t(value->type());
+
+    if(BuiltinTypes::xsString->xdtTypeMatches(t)
+       || BuiltinTypes::xsUntypedAtomic->xdtTypeMatches(t)
+       || BuiltinTypes::xsAnyURI->xdtTypeMatches(t))
+        return value->stringValue();
+    /* Note, this occurs before the xsInteger test, since xs:unsignedLong
+     * is a subtype of it. */
+    else if(*BuiltinTypes::xsUnsignedLong == *t)
+        return QVariant(value->as<DerivedInteger<TypeUnsignedLong> >()->storedValue());
+    else if(BuiltinTypes::xsInteger->xdtTypeMatches(t))
+        return QVariant(value->as<Numeric>()->toInteger());
+    else if(BuiltinTypes::xsFloat->xdtTypeMatches(t)
+            || BuiltinTypes::xsDouble->xdtTypeMatches(t)
+            || BuiltinTypes::xsDecimal->xdtTypeMatches(t))
+        return QVariant(value->as<Numeric>()->toDouble());
+    /* We currently does not support xs:time. */
+    else if(BuiltinTypes::xsDateTime->xdtTypeMatches(t))
+        return QVariant(value->as<AbstractDateTime>()->toDateTime());
+    else if(BuiltinTypes::xsDate->xdtTypeMatches(t))
+        return QVariant(value->as<AbstractDateTime>()->toDateTime().toUTC().date());
+    else if(BuiltinTypes::xsBoolean->xdtTypeMatches(t))
+        return QVariant(value->as<Boolean>()->value());
+    else if(BuiltinTypes::xsBase64Binary->xdtTypeMatches(t)
+            || BuiltinTypes::xsHexBinary->xdtTypeMatches(t))
+        return QVariant(value->as<Base64Binary>()->asByteArray());
+    else if(BuiltinTypes::xsQName->xdtTypeMatches(t))
+        return QVariant::fromValue(value->as<QNameValue>()->qName());
+    else
+    {
+        /* A type we don't support in Qt. Includes xs:time currently. */
+        return QVariant();
+    }
+}
+
+Item AtomicValue::toXDM(const QVariant &value)
+{
+    Q_ASSERT_X(value.isValid(), Q_FUNC_INFO,
+               "QVariants sent to Patternist must be valid.");
+
+    switch(value.userType())
+    {
+        case QVariant::Char:
+        /* Fallthrough. A single codepoint is a string in XQuery. */
+        case QVariant::String:
+            return AtomicString::fromValue(value.toString());
+        case QVariant::Url:
+        {
+            /* QUrl doesn't follow the spec properly, so we
+             * have to let it be an xs:string. Calling QVariant::toString()
+             * on a QVariant that contains a QUrl returns, surprisingly,
+             * an empty string. */
+            return AtomicString::fromValue(value.toUrl().toString());
+        }
+        case QVariant::ByteArray:
+            return HexBinary::fromValue(value.toByteArray());
+        case QVariant::Int:
+        /* Fallthrough. */
+        case QVariant::LongLong:
+        /* Fallthrough. */
+        case QVariant::UInt:
+            return Integer::fromValue(value.toLongLong());
+        case QVariant::ULongLong:
+            return DerivedInteger<TypeUnsignedLong>::fromValueUnchecked(value.toULongLong());
+        case QVariant::Bool:
+            return Boolean::fromValue(value.toBool());
+        case QVariant::Time:
+            return SchemaTime::fromDateTime(value.toDateTime());
+        case QVariant::Date:
+            return Date::fromDateTime(QDateTime(value.toDate(), QTime(), Qt::UTC));
+        case QVariant::DateTime:
+            return DateTime::fromDateTime(value.toDateTime());
+        case QMetaType::Float:
+            return Item(Double::fromValue(value.toFloat()));
+        case QVariant::Double:
+            return Item(Double::fromValue(value.toDouble()));
+        default:
+        {
+            if (value.userType() == qMetaTypeId<float>())
+            {
+                return Item(Float::fromValue(value.value<float>()));
+            }
+            else {
+                Q_ASSERT_X(false,
+                           Q_FUNC_INFO,
+                           qPrintable(QString::fromLatin1(
+                               "QVariants of type %1 are not supported in "
+                               "Patternist, see the documentation")
+                                  .arg(QLatin1String(value.typeName()))));
+                return AtomicValue::Ptr();
+            }
+        }
+    }
+}
+
+ItemType::Ptr AtomicValue::qtToXDMType(const QXmlItem &item)
+{
+    Q_ASSERT(!item.isNull());
+
+    if(item.isNull())
+        return ItemType::Ptr();
+
+    if(item.isNode())
+        return BuiltinTypes::node;
+
+    Q_ASSERT(item.isAtomicValue());
+    const QVariant v(item.toAtomicValue());
+
+    switch(int(v.type()))
+    {
+        case QVariant::Char:
+        /* Fallthrough. */
+        case QVariant::String:
+        /* Fallthrough. */
+        case QVariant::Url:
+            return BuiltinTypes::xsString;
+        case QVariant::Bool:
+            return BuiltinTypes::xsBoolean;
+        case QVariant::ByteArray:
+            return BuiltinTypes::xsBase64Binary;
+        case QVariant::Int:
+        /* Fallthrough. */
+        case QVariant::LongLong:
+            return BuiltinTypes::xsInteger;
+        case QVariant::ULongLong:
+            return BuiltinTypes::xsUnsignedLong;
+        case QVariant::Date:
+            return BuiltinTypes::xsDate;
+        case QVariant::DateTime:
+        /* Fallthrough. */
+        case QVariant::Time:
+            return BuiltinTypes::xsDateTime;
+        case QMetaType::Float:
+	    return BuiltinTypes::xsFloat;
+        case QVariant::Double:
+            return BuiltinTypes::xsDouble;
+        default:
+            return ItemType::Ptr();
+    }
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qbase64binary.cpp b/src/xmlpatterns/data/qbase64binary.cpp
new file mode 100644
index 0000000..42c6cb9
--- /dev/null
+++ b/src/xmlpatterns/data/qbase64binary.cpp
@@ -0,0 +1,216 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 <QByteArray>
+#include <QtGlobal>
+
+#include "qbuiltintypes_p.h"
+#include "qvalidationerror_p.h"
+
+#include "qbase64binary_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+Base64Binary::Base64Binary(const QByteArray &val) : m_value(val)
+{
+}
+
+const char Base64Binary::Base64DecMap[128] =
+{
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x3E, 0x00, 0x00, 0x00, 0x3F,
+     0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B,
+     0x3C, 0x3D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
+     0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E,
+     0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16,
+     0x17, 0x18, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20,
+     0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
+     0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, 0x30,
+     0x31, 0x32, 0x33, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+void Base64Binary::base64Decode(const QByteArray &in, QByteArray &out, bool &ok)
+{
+    out.resize(0);
+
+    if(in.isEmpty())
+    {
+        ok = false;
+        return;
+    }
+
+    ok = true;
+    int len = in.size(), tail = len;
+    const char *const data = in.data();
+    unsigned int eqCount = 0;
+
+    // Find the tail end of the actual encoded data even if
+    // there is/are trailing CR and/or LF.
+    while(data[tail - 1] == '=')
+    {
+        --tail;
+        if(data[tail] != '=')
+            len = tail;
+        else
+            ++eqCount;
+    }
+
+    if(eqCount > 2)
+    {
+        ok = false;
+        return;
+    }
+
+    unsigned int outIdx = 0;
+    const int count = len; // We modify len below
+    out.resize((count));
+
+    for(int idx = 0; idx < count; ++idx)
+    {
+        const unsigned char ch = data[idx];
+        if((ch > 47 && ch < 58) ||
+            (ch > 64 && ch < 91) ||
+            (ch > 96 && ch < 123) ||
+            ch == '+' ||
+            ch == '/')
+        {
+            out[outIdx++] = Base64DecMap[ch];
+        }
+        else if(ch == '=')
+        {
+            if((idx + 1) == count || data[idx + 1] == '=')
+            {
+                out[++outIdx] = Base64DecMap[ch];
+                continue;
+            }
+
+            ok = false;
+            return;
+        }
+        else if(ch == ' ')
+        {
+            /* One space is ok, and the previously applied whitespace facet(not implemented
+             * at this time of writing) have ensured it's only one space, so we assume that. */
+            --tail;
+            --len;
+            continue;
+        }
+        else
+        {
+            ok = false;
+            return;
+        }
+    }
+
+    if(outIdx % 4 != 0)
+    {
+        ok = false;
+        return;
+    }
+
+    out.resize(len);
+
+    // 4-byte to 3-byte conversion
+    len = (tail > (len / 4)) ? tail - (len / 4) : 0;
+    int sidx = 0, didx = 0;
+    if(len > 1)
+    {
+      while(didx < len - 2)
+      {
+          out[didx] =(((out[sidx] << 2) & 255) | ((out[sidx + 1] >> 4) & 003));
+          out[didx + 1] =(((out[sidx + 1] << 4) & 255) | ((out[sidx + 2] >> 2) & 017));
+          out[didx + 2] =(((out[sidx + 2] << 6) & 255) | (out[sidx + 3] & 077));
+          sidx += 4;
+          didx += 3;
+      }
+    }
+
+    if(didx < len)
+        out[didx] =(((out[sidx] << 2) & 255) | ((out[sidx + 1] >> 4) & 003));
+
+    if(++didx < len)
+        out[didx] =(((out[sidx + 1] << 4) & 255) | ((out[sidx + 2] >> 2) & 017));
+
+    // Resize the output buffer
+    if(len == 0 || len < out.size())
+      out.resize(len);
+}
+
+AtomicValue::Ptr Base64Binary::fromLexical(const QString &str)
+{
+    const QString simple(str.simplified());
+    if(simple.isEmpty())
+        return AtomicValue::Ptr(new Base64Binary(QByteArray()));
+
+    bool ok = false;
+    QByteArray result;
+    base64Decode(simple.toUtf8(), result, ok);
+
+    if(ok)
+        return AtomicValue::Ptr(new Base64Binary(result));
+    else
+        return ValidationError::createError();
+}
+
+Base64Binary::Ptr Base64Binary::fromValue(const QByteArray &data)
+{
+    return Base64Binary::Ptr(new Base64Binary(data));
+}
+
+QString Base64Binary::stringValue() const
+{
+    return QString::fromLatin1(m_value.toBase64().constData());
+}
+
+ItemType::Ptr Base64Binary::type() const
+{
+    return BuiltinTypes::xsBase64Binary;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qbase64binary_p.h b/src/xmlpatterns/data/qbase64binary_p.h
new file mode 100644
index 0000000..f408fcd
--- /dev/null
+++ b/src/xmlpatterns/data/qbase64binary_p.h
@@ -0,0 +1,118 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_Base64Binary_H
+#define Patternist_Base64Binary_H
+
+#include "qitem_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+
+    /**
+     * @short Implements the value instance of the @c xs:base64Binary type.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class Base64Binary : public AtomicValue
+    {
+    public:
+        friend class CommonValues;
+
+        typedef AtomicValue::Ptr Ptr;
+
+        /**
+         * Creates an instance representing @p value.
+         */
+        static AtomicValue::Ptr fromLexical(const QString &value);
+
+        static Base64Binary::Ptr fromValue(const QByteArray &data);
+
+        virtual QString stringValue() const;
+        virtual ItemType::Ptr type() const;
+        inline const QByteArray &asByteArray() const
+        {
+            return m_value;
+        }
+
+    protected:
+        Base64Binary(const QByteArray &val);
+
+        const QByteArray m_value;
+
+    private:
+        /**
+         * @short Assumes @p in is a lexical representation of @c xs:base64Binary, and
+         * converts it to the binary data set in @p out.
+         *
+         * If @p instr is invalid Base64 content, @p ok is set to
+         * false, and the returned QByteArray has an undefined value.
+         *
+         *  We cannot use QByteArray::fromBase64() because it doesn't do the
+         *  necessary validation that we need to properly implement W3C XML
+         *  Schema's xs:base64Binary type.
+         */
+        static void base64Decode(const QByteArray &in, QByteArray &out, bool &ok);
+
+        static const char Base64DecMap[128];
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qboolean.cpp b/src/xmlpatterns/data/qboolean.cpp
new file mode 100644
index 0000000..2f22cb3
--- /dev/null
+++ b/src/xmlpatterns/data/qboolean.cpp
@@ -0,0 +1,137 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qatomictype_p.h"
+#include "qbuiltintypes_p.h"
+#include "qcommonvalues_p.h"
+#include "qdynamiccontext_p.h"
+#include "qpatternistlocale_p.h"
+#include "qvalidationerror_p.h"
+
+#include "qboolean_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+bool Boolean::evaluateEBV(const Item::Iterator::Ptr &it,
+                          const QExplicitlySharedDataPointer<DynamicContext> &context)
+{
+    return evaluateEBV(it->next(), it, context);
+}
+
+bool Boolean::evaluateEBV(const Item &first,
+                          const Item::Iterator::Ptr &it,
+                          const QExplicitlySharedDataPointer<DynamicContext> &context)
+{
+    Q_ASSERT(it);
+    Q_ASSERT(context);
+
+    if(!first)
+        return false;
+    else if(first.isNode())
+        return true;
+
+    const Item second(it->next());
+
+    if(second)
+    {
+        Q_ASSERT(context);
+        context->error(QtXmlPatterns::tr("Effective Boolean Value cannot be calculated for a sequence "
+                                         "containing two or more atomic values."),
+                          ReportContext::FORG0006,
+                          QSourceLocation());
+        return false;
+    }
+    else
+        return first.as<AtomicValue>()->evaluateEBV(context);
+}
+
+bool Boolean::evaluateEBV(const Item &item,
+                          const QExplicitlySharedDataPointer<DynamicContext> &context)
+{
+    if(!item)
+        return false;
+    else if(item.isNode())
+        return true;
+    else
+        return item.as<AtomicValue>()->evaluateEBV(context);
+}
+
+Boolean::Boolean(const bool value) : m_value(value)
+{
+}
+
+QString Boolean::stringValue() const
+{
+    return m_value
+            ? CommonValues::TrueString->stringValue()
+            : CommonValues::FalseString->stringValue();
+}
+
+bool Boolean::evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return m_value;
+}
+
+Boolean::Ptr Boolean::fromValue(const bool value)
+{
+    return value ? CommonValues::BooleanTrue : CommonValues::BooleanFalse;
+}
+
+AtomicValue::Ptr Boolean::fromLexical(const QString &lexical)
+{
+    const QString val(lexical.trimmed()); /* Apply the whitespace facet. */
+
+    if(val == QLatin1String("true") || val == QChar(QLatin1Char('1')))
+        return CommonValues::BooleanTrue;
+    else if(val == QLatin1String("false") || val == QChar(QLatin1Char('0')))
+        return CommonValues::BooleanFalse;
+    else
+        return ValidationError::createError();
+}
+
+ItemType::Ptr Boolean::type() const
+{
+    return BuiltinTypes::xsBoolean;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qboolean_p.h b/src/xmlpatterns/data/qboolean_p.h
new file mode 100644
index 0000000..da69e8b
--- /dev/null
+++ b/src/xmlpatterns/data/qboolean_p.h
@@ -0,0 +1,126 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_Boolean_H
+#define Patternist_Boolean_H
+
+#include "qitem_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Implements the value instance of the @c xs:boolean type.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class Q_AUTOTEST_EXPORT Boolean : public AtomicValue
+    {
+    public:
+        typedef AtomicValue::Ptr Ptr;
+
+        /**
+         * @returns the boolean value this Boolean represents
+         */
+        static bool evaluateEBV(const Item::Iterator::Ptr &e,
+                                const QExplicitlySharedDataPointer<DynamicContext> &);
+
+        static bool evaluateEBV(const Item &first,
+                                const Item::Iterator::Ptr &e,
+                                const QExplicitlySharedDataPointer<DynamicContext> &);
+
+        static bool evaluateEBV(const Item &item,
+                                const QExplicitlySharedDataPointer<DynamicContext> &context);
+
+        virtual QString stringValue() const;
+
+        /**
+         * @returns a Boolean object instantiating @p value. Use True() or False()
+         * if you already know what value you need.
+         */
+        static Boolean::Ptr fromValue(const bool value);
+
+        /**
+         * Creates a boolean value from a lexical representation. "true" and "1"
+         * becomes @c true, while "false" and "0" becomes @c false.
+         */
+        static AtomicValue::Ptr fromLexical(const QString &val);
+
+        /**
+         * Get the Effective %Boolean Value of this boolean value. For <tt>xs:boolean</tt>, this
+         * is simply the value.
+         */
+        virtual bool evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const;
+
+        virtual ItemType::Ptr type() const;
+
+        inline bool value() const
+        {
+            return m_value;
+        }
+
+    protected:
+        friend class CommonValues;
+        Boolean(const bool value);
+
+    private:
+        const bool m_value;
+    };
+}
+
+QT_END_NAMESPACE
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qcommonvalues.cpp b/src/xmlpatterns/data/qcommonvalues.cpp
new file mode 100644
index 0000000..88beeea
--- /dev/null
+++ b/src/xmlpatterns/data/qcommonvalues.cpp
@@ -0,0 +1,123 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 <limits>
+
+#include "qabstractfloat_p.h"
+#include "qanyuri_p.h"
+#include "qboolean_p.h"
+#include "qdecimal_p.h"
+#include "qinteger_p.h"
+#include "qatomicstring_p.h"
+#include "quntypedatomic_p.h"
+
+#include "qcommonvalues_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+// STATIC DATA
+const AtomicString::Ptr               CommonValues::EmptyString
+                                    (new AtomicString(QLatin1String("")));
+const AtomicString::Ptr               CommonValues::TrueString
+                                    (new AtomicString(QLatin1String("true")));
+const AtomicString::Ptr               CommonValues::FalseString
+                                    (new AtomicString(QLatin1String("false")));
+
+const UntypedAtomic::Ptr        CommonValues::UntypedAtomicTrue
+                                    (new UntypedAtomic(QLatin1String("true")));
+const UntypedAtomic::Ptr        CommonValues::UntypedAtomicFalse
+                                    (new UntypedAtomic(QLatin1String("false")));
+
+const AtomicValue::Ptr              CommonValues::BooleanTrue
+                                    (new Boolean(true));
+const AtomicValue::Ptr              CommonValues::BooleanFalse(new Boolean(false));
+
+const AtomicValue::Ptr               CommonValues::DoubleNaN
+                                    (Double::fromValue(std::numeric_limits<xsDouble>::quiet_NaN()));
+
+const AtomicValue::Ptr                CommonValues::FloatNaN
+                                    (Float::fromValue(std::numeric_limits<xsFloat>::quiet_NaN()));
+
+const Item                          CommonValues::IntegerZero
+                                    (Integer::fromValue(0));
+
+const AtomicValue::Ptr               CommonValues::EmptyAnyURI
+                                    (AnyURI::fromValue(QLatin1String("")));
+
+const AtomicValue::Ptr               CommonValues::DoubleOne
+                                    (Double::fromValue(1));
+const AtomicValue::Ptr                CommonValues::FloatOne
+                                    (Float::fromValue(1));
+const AtomicValue::Ptr              CommonValues::DecimalOne
+                                    (Decimal::fromValue(1));
+const Item                          CommonValues::IntegerOne
+                                    (Integer::fromValue(1));
+const Item                          CommonValues::IntegerOneNegative
+                                    (Integer::fromValue(-1));
+
+const AtomicValue::Ptr               CommonValues::DoubleZero
+                                    (Double::fromValue(0));
+const AtomicValue::Ptr                CommonValues::FloatZero
+                                    (Float::fromValue(0));
+const AtomicValue::Ptr              CommonValues::DecimalZero
+                                    (Decimal::fromValue(0));
+
+const Item::EmptyIterator::Ptr  CommonValues::emptyIterator
+                                    (new Item::EmptyIterator());
+
+const AtomicValue::Ptr               CommonValues::NegativeInfDouble
+                                    (Double::fromValue(-std::numeric_limits<xsDouble>::infinity()));
+const AtomicValue::Ptr               CommonValues::InfDouble
+                                    (Double::fromValue(std::numeric_limits<xsDouble>::infinity()));
+const AtomicValue::Ptr                CommonValues::NegativeInfFloat
+                                    (Float::fromValue(-std::numeric_limits<xsFloat>::infinity()));
+const AtomicValue::Ptr                CommonValues::InfFloat
+                                    (Float::fromValue(std::numeric_limits<xsFloat>::infinity()));
+
+const DayTimeDuration::Ptr      CommonValues::DayTimeDurationZero
+                                    (DayTimeDuration::fromSeconds(0));
+const DayTimeDuration::Ptr      CommonValues::YearMonthDurationZero
+                                    (YearMonthDuration::fromComponents(true, 0, 0));
+
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qcommonvalues_p.h b/src/xmlpatterns/data/qcommonvalues_p.h
new file mode 100644
index 0000000..cd3e270
--- /dev/null
+++ b/src/xmlpatterns/data/qcommonvalues_p.h
@@ -0,0 +1,228 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_CommonValues_H
+#define Patternist_CommonValues_H
+
+#include "qdaytimeduration_p.h"
+#include "qyearmonthduration_p.h"
+#include "qemptyiterator_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+
+    /**
+     * @short A collection of common values.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     * @todo Documentation is missing/incomplete
+     */
+    class CommonValues
+    {
+    public:
+        /**
+         * An empty, zero-length string.
+         *
+         * @note It is not @c null, but empty.
+         */
+        static const AtomicValue::Ptr EmptyString;
+
+        /**
+         * The string "true", the lexical representation of
+         * @c xs:boolean's value @c true.
+         */
+        static const AtomicValue::Ptr TrueString;
+
+        /**
+         * The string "false", the lexical representation of
+         * @c xs:boolean's value @c false.
+         */
+        static const AtomicValue::Ptr UntypedAtomicFalse;
+
+        /**
+         * The string "true", the lexical representation of
+         * @c xs:boolean's value @c true.
+         */
+        static const AtomicValue::Ptr UntypedAtomicTrue;
+
+        /**
+         * The string "false", the lexical representation of
+         * @c xs:boolean's value @c false.
+         */
+        static const AtomicValue::Ptr FalseString;
+
+        /**
+         * @returns a Boolean instance carrying the boolean value @c true.
+         * Use this value instead of Boolean::fromValue() if you
+         * know what boolean value you need.
+         */
+        static const AtomicValue::Ptr BooleanTrue;
+
+        /**
+         * @returns a Boolean instance carrying the boolean value @c true.
+         * Use this value instead of Boolean::fromValue() if you
+         * know what boolean value you need.
+         */
+        static const AtomicValue::Ptr BooleanFalse;
+
+        /**
+         * Not-a-Numeric typed as @c xs:double.
+         */
+        static const AtomicValue::Ptr DoubleNaN;
+
+        /**
+         * Not-a-Number typed as @c xs:float, <tt>xs:float("NaN")</tt>.
+         */
+        static const AtomicValue::Ptr FloatNaN;
+
+        /**
+         * Zero(0) typed as @c xs:integer, <tt>xs:integer("0")</tt>.
+         */
+        static const Item IntegerZero;
+
+        /**
+         * An empty, "", @c xs:anyURI.
+         */
+        static const AtomicValue::Ptr EmptyAnyURI;
+
+        /**
+         * The empty sequence.
+         */
+        static const EmptyIterator<Item>::Ptr emptyIterator;
+
+        /**
+         * <tt>xs:float("-INF")</tt>
+         */
+        static const AtomicValue::Ptr NegativeInfFloat;
+
+        /**
+         * <tt>xs:float("INF")</tt>
+         */
+        static const AtomicValue::Ptr InfFloat;
+
+        /**
+         * <tt>xs:double("-INF")</tt>
+         */
+        static const AtomicValue::Ptr NegativeInfDouble;
+
+        /**
+         * <tt>xs:double("INF")</tt>
+         */
+        static const AtomicValue::Ptr InfDouble;
+
+        /**
+         * <tt>xs:float("1")</tt>
+         */
+        static const AtomicValue::Ptr FloatOne;
+        /**
+         * <tt>xs:double("1")</tt>
+         */
+        static const AtomicValue::Ptr DoubleOne;
+        /**
+         * <tt>xs:decimal("1")</tt>
+         */
+        static const AtomicValue::Ptr DecimalOne;
+
+        /**
+         * <tt>xs:integer("1")</tt>
+         */
+        static const Item IntegerOne;
+
+        /**
+         * <tt>xs:integer("-1")</tt>
+         */
+        static const Item IntegerOneNegative;
+
+        /**
+         * <tt>xs:double("0")</tt>
+         */
+        static const AtomicValue::Ptr DoubleZero;
+
+        /**
+         * <tt>xs:float("0")</tt>
+         */
+        static const AtomicValue::Ptr FloatZero;
+        /**
+         * <tt>xs:integer("0")</tt>
+         */
+        static const AtomicValue::Ptr DecimalZero;
+
+        /**
+         * The @c xs:dayTimeDuration value PT0S
+         */
+        static const DayTimeDuration::Ptr DayTimeDurationZero;
+
+        /**
+         * The @c xs:yearMonthDuration value P0M
+         */
+        static const DayTimeDuration::Ptr YearMonthDurationZero;
+
+    private:
+        /**
+         * The constructor is private because this class is not meant to be instantiated,
+         * but should only be used via its static const members.
+         */
+        inline CommonValues();
+
+        Q_DISABLE_COPY(CommonValues)
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qcomparisonfactory.cpp b/src/xmlpatterns/data/qcomparisonfactory.cpp
new file mode 100644
index 0000000..66d72af
--- /dev/null
+++ b/src/xmlpatterns/data/qcomparisonfactory.cpp
@@ -0,0 +1,154 @@
+/****************************************************************************
+**
+** Copyright (C) 2008 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 "qatomiccomparators_p.h"
+#include "qatomicstring_p.h"
+#include "qcomparisonplatform_p.h"
+#include "qvaluefactory_p.h"
+
+#include "qcomparisonfactory_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+/**
+ * @short Helper class for ComparisonFactory::fromLexical() which exposes
+ * CastingPlatform appropriately.
+ *
+ * @relates ComparisonFactory
+ */
+class PerformComparison : public ComparisonPlatform<PerformComparison, true>
+                        , public SourceLocationReflection
+{
+public:
+    PerformComparison(const SourceLocationReflection *const sourceLocationReflection,
+                      const AtomicComparator::Operator op) : m_sourceReflection(sourceLocationReflection)
+                                                           , m_operator(op)
+    {
+        Q_ASSERT(m_sourceReflection);
+    }
+
+    bool operator()(const AtomicValue::Ptr &operand1,
+                    const AtomicValue::Ptr &operand2,
+                    const SchemaType::Ptr &type,
+                    const ReportContext::Ptr &context)
+    {
+        const ItemType::Ptr asItemType((AtomicType::Ptr(type)));
+
+        /* One area where the Query Transform world differs from the Schema
+         * world is that @c xs:duration is not considedered comparable, because
+         * it's according to Schema is partially comparable. This means
+         * ComparisonPlatform::fetchComparator() flags it as impossible, and
+         * hence we need to override that.
+         *
+         * SchemaType::wxsTypeMatches() will return true for sub-types of @c
+         * xs:duration as well, but that's ok since AbstractDurationComparator
+         * works for them too. */
+        if(BuiltinTypes::xsDuration->wxsTypeMatches(type))
+            prepareComparison(AtomicComparator::Ptr(new AbstractDurationComparator()));
+        else if (BuiltinTypes::xsGYear->wxsTypeMatches(type) ||
+                 BuiltinTypes::xsGYearMonth->wxsTypeMatches(type) ||
+                 BuiltinTypes::xsGMonth->wxsTypeMatches(type) ||
+                 BuiltinTypes::xsGMonthDay->wxsTypeMatches(type) ||
+                 BuiltinTypes::xsGDay->wxsTypeMatches(type))
+            prepareComparison(AtomicComparator::Ptr(new AbstractDateTimeComparator()));
+        else
+            prepareComparison(fetchComparator(asItemType, asItemType, context));
+
+        return flexibleCompare(operand1, operand2, context);
+    }
+
+    const SourceLocationReflection *actualReflection() const
+    {
+        return m_sourceReflection;
+    }
+
+    AtomicComparator::Operator operatorID() const
+    {
+        return m_operator;
+    }
+
+private:
+    const SourceLocationReflection *const m_sourceReflection;
+    const AtomicComparator::Operator      m_operator;
+};
+
+bool ComparisonFactory::compare(const AtomicValue::Ptr &operand1,
+                                const AtomicComparator::Operator op,
+                                const AtomicValue::Ptr &operand2,
+                                const SchemaType::Ptr &type,
+                                const ReportContext::Ptr &context,
+                                const SourceLocationReflection *const sourceLocationReflection)
+{
+    Q_ASSERT(operand1);
+    Q_ASSERT(operand2);
+    Q_ASSERT(context);
+    Q_ASSERT(sourceLocationReflection);
+    Q_ASSERT(type);
+    Q_ASSERT_X(type->category() == SchemaType::SimpleTypeAtomic, Q_FUNC_INFO,
+               "We can only compare atomic values.");
+
+    return PerformComparison(sourceLocationReflection, op)(operand1, operand2, type, context);
+}
+
+bool ComparisonFactory::constructAndCompare(const DerivedString<TypeString>::Ptr &operand1,
+                                            const AtomicComparator::Operator op,
+                                            const DerivedString<TypeString>::Ptr &operand2,
+                                            const SchemaType::Ptr &type,
+                                            const ReportContext::Ptr &context,
+                                            const SourceLocationReflection *const sourceLocationReflection)
+{
+    Q_ASSERT(operand1);
+    Q_ASSERT(operand2);
+    Q_ASSERT(context);
+    Q_ASSERT(sourceLocationReflection);
+    Q_ASSERT(type);
+    Q_ASSERT_X(type->category() == SchemaType::SimpleTypeAtomic, Q_FUNC_INFO,
+               "We can only compare atomic values.");
+
+    const AtomicValue::Ptr value1 = ValueFactory::fromLexical(operand1->stringValue(), type, context, sourceLocationReflection);
+    const AtomicValue::Ptr value2 = ValueFactory::fromLexical(operand2->stringValue(), type, context, sourceLocationReflection);
+
+    return compare(value1, op, value2, type, context, sourceLocationReflection);
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qcomparisonfactory_p.h b/src/xmlpatterns/data/qcomparisonfactory_p.h
new file mode 100644
index 0000000..61f65b1
--- /dev/null
+++ b/src/xmlpatterns/data/qcomparisonfactory_p.h
@@ -0,0 +1,121 @@
+/****************************************************************************
+**
+** Copyright (C) 2008 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_ComparisonFactory_H
+#define Patternist_ComparisonFactory_H
+
+#include "qatomiccomparator_p.h"
+#include "qderivedstring_p.h"
+#include "qitem_p.h"
+#include "qreportcontext_p.h"
+#include "qschematype_p.h"
+
+QT_BEGIN_HEADER
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Provides compare(), which is a high-level helper function for
+     * comparing atomic values.
+     *
+     * This class wraps the helper class ComparisonPlatform with a more specific,
+     * high-level API.
+     *
+     * @see ComparisonPlatform
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_schema
+     */
+    class ComparisonFactory
+    {
+    public:
+        /**
+         * @short Returns the result of evaluating operator @p op applied to the atomic
+         * values @p operand1 and @p operand2.
+         *
+         * The caller guarantees that both values are of type @p type.
+         *
+         * ComparisonFactory does not take ownership of @p sourceLocationReflection.
+         */
+        static bool compare(const AtomicValue::Ptr &operand1,
+                            const AtomicComparator::Operator op,
+                            const AtomicValue::Ptr &operand2,
+                            const SchemaType::Ptr &type,
+                            const ReportContext::Ptr &context,
+                            const SourceLocationReflection *const sourceLocationReflection);
+
+        /**
+         * @short Returns the result of evaluating operator @p op applied to the atomic
+         * values @p operand1 and @p operand2.
+         *
+         * In opposite to compare() it converts the operands from string type
+         * to @p type and compares these constructed types.
+         *
+         * The caller guarantees that both values are of type @p type.
+         *
+         * ComparisonFactory does not take ownership of @p sourceLocationReflection.
+         */
+        static bool constructAndCompare(const DerivedString<TypeString>::Ptr &operand1,
+                                        const AtomicComparator::Operator op,
+                                        const DerivedString<TypeString>::Ptr &operand2,
+                                        const SchemaType::Ptr &type,
+                                        const ReportContext::Ptr &context,
+                                        const SourceLocationReflection *const sourceLocationReflection);
+
+    private:
+        Q_DISABLE_COPY(ComparisonFactory)
+    };
+}
+
+QT_END_NAMESPACE
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qdate.cpp b/src/xmlpatterns/data/qdate.cpp
new file mode 100644
index 0000000..cc0842b
--- /dev/null
+++ b/src/xmlpatterns/data/qdate.cpp
@@ -0,0 +1,115 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qbuiltintypes_p.h"
+#include "qitem_p.h"
+
+#include "qdate_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+Date::Date(const QDateTime &dateTime) : AbstractDateTime(dateTime)
+{
+}
+
+Date::Ptr Date::fromLexical(const QString &lexical)
+{
+    static const CaptureTable captureTable( // STATIC DATA
+        /* The extra paranthesis is a build fix for GCC 3.3. */
+        (QRegExp(QLatin1String(
+                "^\\s*"                             /* Any preceding whitespace. */
+                "(-?)"                              /* Any preceding minus. */
+                "(\\d{4,})"                         /* The year part. */
+                "-"                                 /* Delimiter. */
+                "(\\d{2})"                          /* The month part. */
+                "-"                                 /* Delimiter. */
+                "(\\d{2})"                          /* The day part. */
+                "(?:(\\+|-)(\\d{2}):(\\d{2})|(Z))?" /* The zone offset, "+08:24". */
+                "\\s*$"                             /* Any terminating whitespace. */))),
+        /*zoneOffsetSignP*/         5,
+        /*zoneOffsetHourP*/         6,
+        /*zoneOffsetMinuteP*/       7,
+        /*zoneOffsetUTCSymbolP*/    8,
+        /*yearP*/                   2,
+        /*monthP*/                  3,
+        /*dayP*/                    4,
+        /*hourP*/                   -1,
+        /*minutesP*/                -1,
+        /*secondsP*/                -1,
+        /*msecondsP*/               -1,
+        /*yearSign*/                1);
+
+    AtomicValue::Ptr err;
+    const QDateTime retval(create(err, lexical, captureTable));
+
+    return err ? err : Date::Ptr(new Date(retval));
+}
+
+Date::Ptr Date::fromDateTime(const QDateTime &date)
+{
+    /* Don't include the QTime; "reset" the time. */
+    QDateTime result;
+    copyTimeSpec(date, result);
+    result.setDate(date.date());
+    Q_ASSERT(date.isValid());
+
+    return Date::Ptr(new Date(result));
+}
+
+Item Date::fromValue(const QDateTime &dt) const
+{
+    Q_ASSERT(dt.isValid());
+    return fromDateTime(dt);
+}
+
+QString Date::stringValue() const
+{
+    return dateToString() + zoneOffsetToString();
+}
+
+ItemType::Ptr Date::type() const
+{
+    return BuiltinTypes::xsDate;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qdate_p.h b/src/xmlpatterns/data/qdate_p.h
new file mode 100644
index 0000000..000da2e
--- /dev/null
+++ b/src/xmlpatterns/data/qdate_p.h
@@ -0,0 +1,95 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_Date_H
+#define Patternist_Date_H
+
+#include "qabstractdatetime_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Implements the value instance of the @c xs:date type.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class Date : public AbstractDateTime
+    {
+    public:
+        typedef AtomicValue::Ptr Ptr;
+
+        /**
+         * Creates an instance from the lexical representation @p string.
+         */
+        static Date::Ptr fromLexical(const QString &string);
+        static Date::Ptr fromDateTime(const QDateTime &date);
+
+        virtual ItemType::Ptr type() const;
+        virtual QString stringValue() const;
+        virtual Item fromValue(const QDateTime &dt) const;
+
+    protected:
+        friend class CommonValues;
+
+        Date(const QDateTime &dateTime);
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qdaytimeduration.cpp b/src/xmlpatterns/data/qdaytimeduration.cpp
new file mode 100644
index 0000000..e47144c
--- /dev/null
+++ b/src/xmlpatterns/data/qdaytimeduration.cpp
@@ -0,0 +1,242 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qabstractdatetime_p.h"
+#include "qbuiltintypes_p.h"
+#include "qcommonvalues_p.h"
+
+#include "qdaytimeduration_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+DayTimeDuration::DayTimeDuration(const bool isPositiveP,
+                                 const DayCountProperty daysP,
+                                 const HourProperty hoursP,
+                                 const MinuteProperty minutesP,
+                                 const SecondProperty secs,
+                                 const MSecondProperty msecs) : AbstractDuration(isPositiveP),
+                                                                m_days(daysP),
+                                                                m_hours(hoursP),
+                                                                m_minutes(minutesP),
+                                                                m_seconds(secs),
+                                                                m_mseconds(msecs)
+{
+}
+
+DayTimeDuration::Ptr DayTimeDuration::fromLexical(const QString &lexical)
+{
+    static const CaptureTable captureTable(
+        /* The extra paranthesis is a build fix for GCC 3.3. */
+        (QRegExp(QLatin1String(
+                "^\\s*"                         /* Any preceding whitespace. */
+                "(-)?"                          /* Any minus sign. */
+                "P"                             /* Delimiter. */
+                "(?:(\\d+)D)?"                  /* Day part. */
+                "(?:"                           /* Here starts the optional time part. */
+                "(T)"                           /* SchemaTime delimiter. */
+                "(?:(\\d+)H)?"                  /* Hour part. */
+                "(?:(\\d+)M)?"                  /* Minute part. */
+                "(?:(\\d+)(?:\\.(\\d+))?S)?"    /* Seconds & milli seconds. */
+                ")?"                            /* End of optional time part. */
+                "\\s*$"                         /* Any terminating whitespace. */))),
+        /*yearP*/       -1,
+        /*monthP*/      -1,
+        /*dayP*/        2,
+        /*tDelimiterP*/ 3,
+        /*hourP*/       4,
+        /*minutesP*/    5,
+        /*secondsP*/    6,
+        /*msecondsP*/   7);
+
+    DayCountProperty days = 0;
+    HourProperty hours = 0;
+    MinuteProperty minutes = 0;
+    SecondProperty sec = 0;
+    MSecondProperty msec = 0;
+    bool isPos;
+
+    const DayTimeDuration::Ptr err(create(captureTable, lexical, &isPos, 0, 0, &days,
+                                          &hours, &minutes, &sec, &msec));
+    return err ? err : DayTimeDuration::Ptr(new DayTimeDuration(isPos, days, hours, minutes,
+                                                                sec, msec));
+}
+
+DayTimeDuration::Ptr DayTimeDuration::fromComponents(const bool isPositive,
+                                                     const DayCountProperty days,
+                                                     const HourProperty hours,
+                                                     const MinuteProperty minutes,
+                                                     const SecondProperty seconds,
+                                                     const MSecondProperty mseconds)
+{
+    return DayTimeDuration::Ptr(new DayTimeDuration(isPositive,
+                                                    days,
+                                                    hours,
+                                                    minutes,
+                                                    seconds,
+                                                    mseconds));
+}
+
+DayTimeDuration::Ptr DayTimeDuration::fromSeconds(const SecondCountProperty sourceSecs,
+                                                  const MSecondProperty msecs)
+{
+    Q_ASSERT(msecs >= 0);
+    const SecondCountProperty source = qAbs(sourceSecs);
+    const bool isPos = sourceSecs >= 0;
+    const SecondCountProperty secs = source % 60;
+    const MinuteCountProperty mins = (source / 60) % 60;
+    const HourCountProperty hours = source / (60 * 60) % 24;
+    const DayCountProperty days = source / (60 * 60) / 24;
+
+    return DayTimeDuration::Ptr(new DayTimeDuration(isPos, days, hours, mins, secs, msecs));
+}
+
+QString DayTimeDuration::stringValue() const
+{
+    QString retval;
+
+    if(!m_isPositive)
+        retval.append(QLatin1Char('-'));
+
+    retval.append(QLatin1Char('P'));
+
+    if(m_days)
+    {
+        retval.append(QString::number(m_days));
+        retval.append(QLatin1Char('D'));
+    }
+
+    if(!m_hours && !m_minutes && !m_seconds && !m_seconds)
+    {
+        if(!m_days)
+            return QLatin1String("PT0S");
+        else
+            return retval;
+    }
+
+    retval.append(QLatin1Char('T'));
+
+    if(m_hours)
+    {
+        retval.append(QString::number(m_hours));
+        retval.append(QLatin1Char('H'));
+    }
+
+    if(m_minutes)
+    {
+        retval.append(QString::number(m_minutes));
+        retval.append(QLatin1Char('M'));
+    }
+
+    if(m_seconds || m_seconds)
+    {
+        retval.append(QString::number(m_seconds));
+
+        if(m_mseconds)
+            retval.append(serializeMSeconds(m_mseconds));
+
+        retval.append(QLatin1Char('S'));
+    }
+    else if(!m_days && !m_hours && !m_minutes)
+        retval.append(QLatin1String("0S"));
+
+    return retval;
+}
+
+AbstractDuration::Value DayTimeDuration::value() const
+{
+    return ((m_days * 24 * 60 * 60 * 1000) +
+            (m_hours * 60 * 60 * 1000) +
+            (m_minutes * 60 * 1000) +
+            (m_seconds * 1000) +
+            m_mseconds) * (m_isPositive ? 1 : -1);
+}
+
+Item DayTimeDuration::fromValue(const Value val) const
+{
+    if(val == 0)
+        return toItem(CommonValues::DayTimeDurationZero);
+    else
+        return toItem(fromSeconds(val / 1000, qAbs(val) % 1000));
+}
+
+ItemType::Ptr DayTimeDuration::type() const
+{
+    return BuiltinTypes::xsDayTimeDuration;
+}
+
+YearProperty DayTimeDuration::years() const
+{
+    return 0;
+}
+
+MonthProperty DayTimeDuration::months() const
+{
+    return 0;
+}
+
+DayCountProperty DayTimeDuration::days() const
+{
+    return m_days;
+}
+
+HourProperty DayTimeDuration::hours() const
+{
+    return m_hours;
+}
+
+MinuteProperty DayTimeDuration::minutes() const
+{
+    return m_minutes;
+}
+
+SecondProperty DayTimeDuration::seconds() const
+{
+    return m_seconds;
+}
+
+MSecondProperty DayTimeDuration::mseconds() const
+{
+    return m_mseconds;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qdaytimeduration_p.h b/src/xmlpatterns/data/qdaytimeduration_p.h
new file mode 100644
index 0000000..f9eb524
--- /dev/null
+++ b/src/xmlpatterns/data/qdaytimeduration_p.h
@@ -0,0 +1,154 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_DayTimeDuration_H
+#define Patternist_DayTimeDuration_H
+
+#include "qabstractduration_p.h"
+#include "qitem_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Implements the value instance of the @c xs:dayTimeDuration type.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class DayTimeDuration : public AbstractDuration
+    {
+    public:
+
+        typedef QExplicitlySharedDataPointer<DayTimeDuration> Ptr;
+
+        /**
+         * Creates an instance from the lexical representation @p string.
+         */
+        static DayTimeDuration::Ptr fromLexical(const QString &string);
+
+        static DayTimeDuration::Ptr fromComponents(const bool isPositive,
+                                                   const DayCountProperty days,
+                                                   const HourProperty hours,
+                                                   const MinuteProperty minutes,
+                                                   const SecondProperty seconds,
+                                                   const MSecondProperty mseconds);
+        /**
+         * Creates a DayTimeDuration that has the value expressed in seconds @p secs
+         * and milli seconds @p msecs. The signedness of @p secs communicates
+         * whether this DayTimeDuration is positive or negative. @p msecs must always
+         * be positive.
+         */
+        static DayTimeDuration::Ptr fromSeconds(const SecondCountProperty secs,
+                                                const MSecondProperty msecs = 0);
+
+        virtual ItemType::Ptr type() const;
+        virtual QString stringValue() const;
+
+        /**
+         * @returns always 0.
+         */
+        virtual YearProperty years() const;
+
+        /**
+         * @returns always 0.
+         */
+        virtual MonthProperty months() const;
+        virtual DayCountProperty days() const;
+        virtual HourProperty hours() const;
+        virtual MinuteProperty minutes() const;
+        virtual MSecondProperty mseconds() const;
+        virtual SecondProperty seconds() const;
+
+        /**
+         * @returns the value of this xs:dayTimeDuration
+         * in milli seconds.
+         * @see <a href="http://www.w3.org/TR/xpath-functions/#dt-dayTimeDuration">XQuery 1.0
+         * and XPath 2.0 Functions and Operators, 10.3.2.2 Calculating the value of a
+         * xs:dayTimeDuration from the lexical representation</a>
+         */
+        virtual Value value() const;
+
+        /**
+         * Creates a DayTimeDuration containing the value @p val. @p val is
+         * expressed in milli seconds.
+         *
+         * If @p val is zero, is CommonValues::DayTimeDurationZero returned.
+         */
+        virtual Item fromValue(const Value val) const;
+
+    protected:
+        friend class CommonValues;
+
+        DayTimeDuration(const bool isPositive,
+                        const DayCountProperty days,
+                        const HourProperty hours,
+                        const MinuteProperty minutes,
+                        const SecondProperty seconds,
+                        const MSecondProperty mseconds);
+
+    private:
+        const DayCountProperty  m_days;
+        const HourProperty      m_hours;
+        const MinuteProperty    m_minutes;
+        const SecondProperty    m_seconds;
+        const MSecondProperty   m_mseconds;
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qdecimal.cpp b/src/xmlpatterns/data/qdecimal.cpp
new file mode 100644
index 0000000..0003a08
--- /dev/null
+++ b/src/xmlpatterns/data/qdecimal.cpp
@@ -0,0 +1,234 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 <math.h>
+
+#include "qabstractfloat_p.h"
+#include "qatomictype_p.h"
+#include "qbuiltintypes_p.h"
+#include "qvalidationerror_p.h"
+
+#include "qdecimal_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+Decimal::Decimal(const xsDecimal num) : m_value(num)
+{
+}
+
+Decimal::Ptr Decimal::fromValue(const xsDecimal num)
+{
+    return Decimal::Ptr(new Decimal(num));
+}
+
+AtomicValue::Ptr Decimal::fromLexical(const QString &strNumeric)
+{
+    /* QString::toDouble() handles the whitespace facet. */
+    const QString strNumericTrimmed(strNumeric.trimmed());
+
+    /* Block these out, as QString::toDouble() supports them. */
+    if(strNumericTrimmed.compare(QLatin1String("-INF"), Qt::CaseInsensitive) == 0
+       || strNumericTrimmed.compare(QLatin1String("INF"), Qt::CaseInsensitive)  == 0
+       || strNumericTrimmed.compare(QLatin1String("+INF"), Qt::CaseInsensitive)  == 0
+       || strNumericTrimmed.compare(QLatin1String("nan"), Qt::CaseInsensitive)  == 0
+       || strNumericTrimmed.contains(QLatin1Char('e'))
+       || strNumericTrimmed.contains(QLatin1Char('E')))
+    {
+        return ValidationError::createError();
+    }
+
+    bool conversionOk = false;
+    const xsDecimal num = strNumericTrimmed.toDouble(&conversionOk);
+
+    if(conversionOk)
+        return AtomicValue::Ptr(new Decimal(num));
+    else
+        return ValidationError::createError();
+}
+
+bool Decimal::evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return !Double::isEqual(m_value, 0.0);
+}
+
+QString Decimal::stringValue() const
+{
+    return toString(m_value);
+}
+
+QString Decimal::toString(const xsDecimal value)
+{
+    /*
+     * If SV is in the value space of xs:integer, that is, if there are no
+     * significant digits after the decimal point, then the value is converted
+     * from an xs:decimal to an xs:integer and the resulting xs:integer is
+     * converted to an xs:string using the rule above.
+     */
+    if(Double::isEqual(::floor(value), value))
+    {
+        /* The static_cast is identical to Integer::toInteger(). */
+        return QString::number(static_cast<xsInteger>(value));
+    }
+    else
+    {
+        int sign;
+        int decimalPoint;
+        char *result = 0;
+        static_cast<void>(qdtoa(value, 0, 0, &decimalPoint, &sign, 0, &result));
+        /* If the copy constructor is used instead of QString::operator=(),
+         * it doesn't compile. I have no idea why. */
+        const QString qret(QString::fromLatin1(result));
+        delete result;
+
+        QString valueAsString;
+
+        if(sign)
+            valueAsString += QLatin1Char('-');
+
+        if(0 < decimalPoint)
+        {
+            valueAsString += qret.left(decimalPoint);
+            valueAsString += QLatin1Char('.');
+            if (qret.size() <= decimalPoint)
+                valueAsString += QLatin1Char('0');
+            else
+                valueAsString += qret.mid(decimalPoint);
+        }
+        else
+        {
+            valueAsString += QLatin1Char('0');
+            valueAsString += QLatin1Char('.');
+
+            for(int d = decimalPoint; d < 0; d++)
+                valueAsString += QLatin1Char('0');
+
+            valueAsString += qret;
+        }
+
+        return valueAsString;
+    }
+}
+
+ItemType::Ptr Decimal::type() const
+{
+    return BuiltinTypes::xsDecimal;
+}
+
+xsDouble Decimal::toDouble() const
+{
+    return static_cast<xsDouble>(m_value);
+}
+
+xsInteger Decimal::toInteger() const
+{
+    return static_cast<xsInteger>(m_value);
+}
+
+xsFloat Decimal::toFloat() const
+{
+    return static_cast<xsFloat>(m_value);
+}
+
+xsDecimal Decimal::toDecimal() const
+{
+    return m_value;
+}
+
+qulonglong Decimal::toUnsignedInteger() const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO,
+               "It makes no sense to call this function, see Numeric::toUnsignedInteger().");
+    return 0;
+}
+
+Numeric::Ptr Decimal::round() const
+{
+    return Numeric::Ptr(new Decimal(roundFloat(m_value)));
+}
+
+Numeric::Ptr Decimal::roundHalfToEven(const xsInteger /*scale*/) const
+{
+    return Numeric::Ptr();
+}
+
+Numeric::Ptr Decimal::floor() const
+{
+    return Numeric::Ptr(new Decimal(static_cast<xsDecimal>(::floor(m_value))));
+}
+
+Numeric::Ptr Decimal::ceiling() const
+{
+    return Numeric::Ptr(new Decimal(static_cast<xsDecimal>(ceil(m_value))));
+}
+
+Numeric::Ptr Decimal::abs() const
+{
+    return Numeric::Ptr(new Decimal(static_cast<xsDecimal>(fabs(m_value))));
+}
+
+bool Decimal::isNaN() const
+{
+    return false;
+}
+
+bool Decimal::isInf() const
+{
+    return false;
+}
+
+Item Decimal::toNegated() const
+{
+    if(AbstractFloat<true>::isEqual(m_value, 0.0))
+        return fromValue(0).data();
+    else
+        return fromValue(-m_value).data();
+}
+
+bool Decimal::isSigned() const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO,
+               "It makes no sense to call this function, see Numeric::isSigned().");
+    return false;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qdecimal_p.h b/src/xmlpatterns/data/qdecimal_p.h
new file mode 100644
index 0000000..9b9a804
--- /dev/null
+++ b/src/xmlpatterns/data/qdecimal_p.h
@@ -0,0 +1,156 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_Decimal_H
+#define Patternist_Decimal_H
+
+#include "qschemanumeric_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+/**
+ * Defined in QtCore's qlocale.cpp.
+ */
+Q_CORE_EXPORT char *qdtoa(double d, int mode, int ndigits, int *decpt, int *sign, char **rve, char **resultp);
+
+namespace QPatternist
+{
+
+    /**
+     * @short Implements the value instance of the @c xs:decimal type.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     * @todo Documentation is missing/incomplete
+     */
+    class Decimal : public Numeric
+    {
+    public:
+
+        static Decimal::Ptr fromValue(const xsDecimal num);
+
+        /**
+         * Creates a Decimal from the lexical representation of @c xs:decimal stored in
+         * @p strNumeric.
+         *
+         * A possible optimization is to create an Integer if the string ends
+         * with ".0". But this is not conformant. For example, the user writes N.0
+         * which according to the specification is an xs:decimal, but where the
+         * expression is, is an xs:integer is required. That would pass with
+         * such an optimization.
+         */
+        static AtomicValue::Ptr fromLexical(const QString &strNumeric);
+
+        /**
+         * Gets the Effective %Boolean Value of this number.
+         *
+         * @returns @c false if the number is 0 or @c NaN, otherwise @c true.
+         */
+        bool evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const;
+
+        virtual QString stringValue() const;
+
+        /**
+         * @returns always BuiltinTypes::xsDecimal
+         */
+        virtual ItemType::Ptr type() const;
+
+        virtual xsDouble toDouble() const;
+        virtual xsInteger toInteger() const;
+        virtual xsFloat toFloat() const;
+        virtual xsDecimal toDecimal() const;
+        virtual qulonglong toUnsignedInteger() const;
+
+        virtual Numeric::Ptr round() const;
+        virtual Numeric::Ptr roundHalfToEven(const xsInteger scale) const;
+        virtual Numeric::Ptr floor() const;
+        virtual Numeric::Ptr ceiling() const;
+        virtual Numeric::Ptr abs() const;
+
+        /**
+         * @returns always @c false, xs:decimal doesn't have
+         * not-a-number in its value space.
+         */
+        virtual bool isNaN() const;
+
+        /**
+         * @returns always @c false, xs:decimal doesn't have
+         * infinity in its value space.
+         */
+        virtual bool isInf() const;
+
+        virtual Item toNegated() const;
+
+        /**
+         * Converts @p value into a canonical string representation for @c xs:decimal. This
+         * function is used internally by various classes. Users probably wants to call
+         * stringValue() which in turn calls this function.
+         */
+        static QString toString(const xsDecimal value);
+
+        virtual bool isSigned() const;
+
+    protected:
+
+        Decimal(const xsDecimal num);
+
+    private:
+        const xsDecimal m_value;
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qderivedinteger_p.h b/src/xmlpatterns/data/qderivedinteger_p.h
new file mode 100644
index 0000000..0ef5b51
--- /dev/null
+++ b/src/xmlpatterns/data/qderivedinteger_p.h
@@ -0,0 +1,624 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_DerivedInteger_H
+#define Patternist_DerivedInteger_H
+
+#include "qbuiltintypes_p.h"
+#include "qinteger_p.h"
+#include "qpatternistlocale_p.h"
+#include "qvalidationerror_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @relates DerivedInteger
+     */
+    enum DerivedIntegerLimitsUsage
+    {
+        None            = 1,
+        LimitUpwards    = 2,
+        LimitDownwards  = 4,
+        LimitBoth       = LimitUpwards | LimitDownwards
+    };
+
+    enum
+    {
+        IgnorableSignedValue = 0,
+        IgnorableUnsignedValue = 0
+    };
+
+    template<TypeOfDerivedInteger DerivedType> class DerivedInteger;
+
+    template<TypeOfDerivedInteger DerivedType> class DerivedIntegerDetails;
+
+    template<>
+    class DerivedIntegerDetails<TypeByte>
+    {
+    private:
+        friend class DerivedInteger<TypeByte>;
+        typedef qint8                           StorageType;
+        typedef xsInteger                       TemporaryStorageType;
+        static const StorageType                maxInclusive = 127;
+        static const StorageType                minInclusive = -128;
+        static const DerivedIntegerLimitsUsage  limitsUsage = LimitBoth;
+
+        /**
+         * Disable the default constructor.
+         */
+        DerivedIntegerDetails() {}
+
+        Q_DISABLE_COPY(DerivedIntegerDetails)
+    };
+
+    template<>
+    class DerivedIntegerDetails<TypeInt>
+    {
+    private:
+        friend class DerivedInteger<TypeInt>;
+        typedef qint32                          StorageType;
+        typedef xsInteger                       TemporaryStorageType;
+        static const StorageType                maxInclusive = Q_INT64_C(2147483647);
+        static const StorageType                minInclusive = Q_INT64_C(-2147483648);
+        static const DerivedIntegerLimitsUsage  limitsUsage = LimitBoth;
+
+        /**
+         * Disable the default constructor.
+         */
+        DerivedIntegerDetails() {}
+
+        Q_DISABLE_COPY(DerivedIntegerDetails)
+    };
+
+    template<>
+    class DerivedIntegerDetails<TypeLong>
+    {
+    private:
+        friend class DerivedInteger<TypeLong>;
+        typedef qint64                          StorageType;
+        typedef StorageType                     TemporaryStorageType;
+        static const StorageType                maxInclusive = Q_INT64_C(9223372036854775807);
+
+        /**
+         * This messy arithmetic expression ensures that we don't get a warning
+         * on neither GCC nor MSVC.
+         */
+        static const StorageType                minInclusive = -(Q_INT64_C(9223372036854775807)) - 1;
+
+        static const DerivedIntegerLimitsUsage  limitsUsage = LimitBoth;
+
+        /**
+         * Disable the default constructor.
+         */
+        DerivedIntegerDetails() {}
+
+        Q_DISABLE_COPY(DerivedIntegerDetails)
+    };
+
+    template<>
+    class DerivedIntegerDetails<TypeNegativeInteger>
+    {
+    private:
+        friend class DerivedInteger<TypeNegativeInteger>;
+        typedef xsInteger                       StorageType;
+        typedef StorageType                     TemporaryStorageType;
+        static const StorageType                maxInclusive = -1;
+        static const StorageType                minInclusive = IgnorableSignedValue;
+        static const DerivedIntegerLimitsUsage  limitsUsage = LimitUpwards;
+
+        /**
+         * Disable the default constructor.
+         */
+        DerivedIntegerDetails() {}
+
+        Q_DISABLE_COPY(DerivedIntegerDetails)
+    };
+
+    template<>
+    class DerivedIntegerDetails<TypeNonNegativeInteger>
+    {
+    private:
+        friend class DerivedInteger<TypeNonNegativeInteger>;
+        typedef xsInteger                       StorageType;
+        typedef StorageType                     TemporaryStorageType;
+        static const StorageType                maxInclusive = IgnorableSignedValue;
+        static const StorageType                minInclusive = 0;
+        static const DerivedIntegerLimitsUsage  limitsUsage = LimitDownwards;
+
+        /**
+         * Disable the default constructor.
+         */
+        DerivedIntegerDetails() {}
+
+        Q_DISABLE_COPY(DerivedIntegerDetails)
+    };
+
+    template<>
+    class DerivedIntegerDetails<TypeNonPositiveInteger>
+    {
+    private:
+        friend class DerivedInteger<TypeNonPositiveInteger>;
+        typedef xsInteger                       StorageType;
+        typedef StorageType                     TemporaryStorageType;
+        static const StorageType                maxInclusive = 0;
+        static const StorageType                minInclusive = IgnorableSignedValue;
+        static const DerivedIntegerLimitsUsage  limitsUsage = LimitUpwards;
+
+        /**
+         * Disable the default constructor.
+         */
+        DerivedIntegerDetails() {}
+
+        Q_DISABLE_COPY(DerivedIntegerDetails)
+    };
+
+    template<>
+    class DerivedIntegerDetails<TypePositiveInteger>
+    {
+    private:
+        friend class DerivedInteger<TypePositiveInteger>;
+        typedef xsInteger                       StorageType;
+        typedef StorageType                     TemporaryStorageType;
+        static const StorageType                maxInclusive = IgnorableSignedValue;
+        static const StorageType                minInclusive = 1;
+        static const DerivedIntegerLimitsUsage  limitsUsage = LimitDownwards;
+
+        /**
+         * Disable the default constructor.
+         */
+        DerivedIntegerDetails() {}
+
+        Q_DISABLE_COPY(DerivedIntegerDetails)
+    };
+
+    template<>
+    class DerivedIntegerDetails<TypeShort>
+    {
+    private:
+        friend class DerivedInteger<TypeShort>;
+        typedef qint16                          StorageType;
+        typedef xsInteger                       TemporaryStorageType;
+        static const StorageType                maxInclusive = 32767;
+        static const StorageType                minInclusive = -32768;
+        static const DerivedIntegerLimitsUsage  limitsUsage = LimitBoth;
+
+        /**
+         * Disable the default constructor.
+         */
+        DerivedIntegerDetails() {}
+
+        Q_DISABLE_COPY(DerivedIntegerDetails)
+    };
+
+    template<>
+    class DerivedIntegerDetails<TypeUnsignedByte>
+    {
+    private:
+        friend class DerivedInteger<TypeUnsignedByte>;
+        typedef quint8                          StorageType;
+        typedef qint64                          TemporaryStorageType;
+        static const StorageType                maxInclusive = 255;
+        static const StorageType                minInclusive = 0;
+        static const DerivedIntegerLimitsUsage  limitsUsage = LimitBoth;
+
+        /**
+         * Disable the default constructor.
+         */
+        DerivedIntegerDetails() {}
+
+        Q_DISABLE_COPY(DerivedIntegerDetails)
+    };
+
+    template<>
+    class DerivedIntegerDetails<TypeUnsignedInt>
+    {
+    private:
+        friend class DerivedInteger<TypeUnsignedInt>;
+        typedef quint32                         StorageType;
+        typedef qint64                          TemporaryStorageType;
+        static const StorageType                maxInclusive = Q_UINT64_C(4294967295);
+        static const StorageType                minInclusive = 0;
+        static const DerivedIntegerLimitsUsage  limitsUsage = LimitBoth;
+
+        /**
+         * Disable the default constructor.
+         */
+        DerivedIntegerDetails() {}
+
+        Q_DISABLE_COPY(DerivedIntegerDetails)
+    };
+
+    template<>
+    class DerivedIntegerDetails<TypeUnsignedLong>
+    {
+    private:
+        friend class DerivedInteger<TypeUnsignedLong>;
+        typedef quint64                         StorageType;
+        typedef StorageType                     TemporaryStorageType;
+        static const StorageType                maxInclusive = Q_UINT64_C(18446744073709551615);
+        static const StorageType                minInclusive = 0;
+        static const DerivedIntegerLimitsUsage  limitsUsage = LimitBoth;
+
+        /**
+         * Disable the default constructor.
+         */
+        DerivedIntegerDetails() {}
+
+        Q_DISABLE_COPY(DerivedIntegerDetails)
+    };
+
+    template<>
+    class DerivedIntegerDetails<TypeUnsignedShort>
+    {
+    private:
+        friend class DerivedInteger<TypeUnsignedShort>;
+        typedef quint16                         StorageType;
+        typedef qint64                          TemporaryStorageType;
+        static const StorageType                maxInclusive = 65535;
+        static const StorageType                minInclusive = 0;
+        static const DerivedIntegerLimitsUsage  limitsUsage = LimitBoth;
+
+        /**
+         * Disable the default constructor.
+         */
+        DerivedIntegerDetails() {}
+
+        Q_DISABLE_COPY(DerivedIntegerDetails)
+    };
+
+    /**
+     * @short Represents instances of derived @c xs:integer types, such as @c
+     * xs:byte.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    template<TypeOfDerivedInteger DerivedType>
+    class DerivedInteger : public Numeric
+    {
+    private:
+        typedef typename DerivedIntegerDetails<DerivedType>::StorageType StorageType;
+        typedef typename DerivedIntegerDetails<DerivedType>::TemporaryStorageType TemporaryStorageType;
+
+        static const StorageType                maxInclusive        = DerivedIntegerDetails<DerivedType>::maxInclusive;
+        static const StorageType                minInclusive        = DerivedIntegerDetails<DerivedType>::minInclusive;
+        static const DerivedIntegerLimitsUsage  limitsUsage         = DerivedIntegerDetails<DerivedType>::limitsUsage;
+
+        const StorageType m_value;
+
+        inline DerivedInteger(const StorageType num) : m_value(num)
+        {
+        }
+
+        /**
+         * By refactoring out the simple comparison below into a template
+         * function, we avoid the warning "warning: comparison of unsigned expression < 0 is always false" with gcc
+         * when the class is instantiated with TypeUnsignedLong. The warning is
+         * a false positive since we check wehther LimitUpwards is set before
+         * instantiating.
+         *
+         * This template function exists for no other reason. */
+        template<typename A, typename B>
+        static bool lessThan(const A &a, const B &b)
+        {
+            return a < b;
+        }
+
+        /**
+         * This function exists for the same reason that lessThan() do.
+         */
+        template<typename A, typename B>
+        static bool largerOrEqual(const A &a, const B &b)
+        {
+            return qint64(a) >= b;
+        }
+
+    public:
+
+        static ItemType::Ptr itemType()
+        {
+            switch(DerivedType)
+            {
+                case TypeByte:                  return BuiltinTypes::xsByte;
+                case TypeInt:                   return BuiltinTypes::xsInt;
+                case TypeLong:                  return BuiltinTypes::xsLong;
+                case TypeNegativeInteger:       return BuiltinTypes::xsNegativeInteger;
+                case TypeNonNegativeInteger:    return BuiltinTypes::xsNonNegativeInteger;
+                case TypeNonPositiveInteger:    return BuiltinTypes::xsNonPositiveInteger;
+                case TypePositiveInteger:       return BuiltinTypes::xsPositiveInteger;
+                case TypeShort:                 return BuiltinTypes::xsShort;
+                case TypeUnsignedByte:          return BuiltinTypes::xsUnsignedByte;
+                case TypeUnsignedInt:           return BuiltinTypes::xsUnsignedInt;
+                case TypeUnsignedLong:          return BuiltinTypes::xsUnsignedLong;
+                case TypeUnsignedShort:         return BuiltinTypes::xsUnsignedShort;
+            }
+
+            Q_ASSERT(false);
+            return ItemType::Ptr();
+        }
+
+        static AtomicValue::Ptr fromValue(const NamePool::Ptr &np, const TemporaryStorageType num)
+        {
+            /* If we use minInclusive when calling lessThan(), we for some
+             * reason get a linker error with GCC. Using this temporary
+             * variable solves it. */
+            const StorageType minimum = minInclusive;
+
+            if((limitsUsage & LimitUpwards) &&
+               num > maxInclusive)
+            {
+                return ValidationError::createError(QtXmlPatterns::tr(
+                    "Value %1 of type %2 exceeds maximum (%3).")
+                    .arg(QPatternist::formatData(static_cast<xsInteger>(num)))
+                    .arg(formatType(np, itemType()))
+                    .arg(QPatternist::formatData(static_cast<xsInteger>(maxInclusive))));
+            }
+            else if((limitsUsage & LimitDownwards) &&
+                    lessThan(num, minimum))
+            {
+                return ValidationError::createError(QtXmlPatterns::tr(
+                    "Value %1 of type %2 is below minimum (%3).")
+                    .arg(QPatternist::formatData(static_cast<xsInteger>(num)))
+                    .arg(formatType(np, itemType()))
+                    .arg(QPatternist::formatData(static_cast<xsInteger>(minInclusive))));
+            }
+            else
+                return AtomicValue::Ptr(new DerivedInteger(num));
+        }
+
+        static AtomicValue::Ptr fromValueUnchecked(const TemporaryStorageType num)
+        {
+            return AtomicValue::Ptr(new DerivedInteger(num));
+        }
+
+        /**
+         * Constructs an instance from the lexical
+         * representation @p strNumeric.
+         */
+        static AtomicValue::Ptr fromLexical(const NamePool::Ptr &np, const QString &strNumeric)
+        {
+            bool conversionOk = false;
+            TemporaryStorageType num;
+
+            /* Depending on the type, we need to call different conversion
+             * functions on QString. */
+            switch(DerivedType)
+            {
+                case TypeUnsignedLong:
+                {
+                    /* Qt decides to flag '-' as invalid, so remove it before. */
+                    if(strNumeric.contains(QLatin1Char('-')))
+                    {
+                        num = QString(strNumeric).remove(QLatin1Char('-')).toULongLong(&conversionOk);
+
+                        if(num != 0)
+                            conversionOk = false;
+                    }
+                    else
+                        num = strNumeric.toULongLong(&conversionOk);
+
+                    break;
+                }
+                default:
+                {
+                    num = strNumeric.toLongLong(&conversionOk);
+                    break;
+                }
+            }
+
+            if(conversionOk)
+                return fromValue(np, num);
+            else
+                return ValidationError::createError();
+        }
+
+        inline StorageType storedValue() const
+        {
+            return m_value;
+        }
+
+        /**
+         * Determines the Effective %Boolean Value of this number.
+         *
+         * @returns @c false if the number is 0, otherwise @c true.
+         */
+        bool evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const
+        {
+            return m_value != 0;
+        }
+
+        virtual QString stringValue() const
+        {
+            return QString::number(m_value);
+        }
+
+        virtual ItemType::Ptr type() const
+        {
+            return itemType();
+        }
+
+        virtual xsDouble toDouble() const
+        {
+            return static_cast<xsDouble>(m_value);
+        }
+
+        virtual xsInteger toInteger() const
+        {
+            return m_value;
+        }
+
+        virtual xsFloat toFloat() const
+        {
+            return static_cast<xsFloat>(m_value);
+        }
+
+        virtual xsDecimal toDecimal() const
+        {
+            return static_cast<xsDecimal>(m_value);
+        }
+
+        virtual Numeric::Ptr round() const
+        {
+            /* xs:integerS never have a mantissa. */
+            return Numeric::Ptr(static_cast<Numeric *>(const_cast<AtomicValue *>(Integer::fromValue(m_value).asAtomicValue())));
+        }
+
+        virtual Numeric::Ptr roundHalfToEven(const xsInteger) const
+        {
+            return Numeric::Ptr(static_cast<Numeric *>(const_cast<AtomicValue *>(Integer::fromValue(m_value).asAtomicValue())));
+        }
+
+        virtual Numeric::Ptr floor() const
+        {
+            return Numeric::Ptr(static_cast<Numeric *>(const_cast<AtomicValue *>(Integer::fromValue(m_value).asAtomicValue())));
+        }
+
+        virtual Numeric::Ptr ceiling() const
+        {
+            return Numeric::Ptr(static_cast<Numeric *>(const_cast<AtomicValue *>(Integer::fromValue(m_value).asAtomicValue())));
+        }
+
+        virtual Numeric::Ptr abs() const
+        {
+            /* We unconditionally create an Integer even if we're a positive
+             * value, because one part of this is the type change to
+             * xs:integer.
+             *
+             * We've manually inlined qAbs() and invoke xsInteger's
+             * constructor. The reason being that we other gets truncation down
+             * to StorageType. See for instance XQTS test case absint1args-1. */
+            return Numeric::Ptr(static_cast<Numeric *>(const_cast<AtomicValue *>(Integer::fromValue(largerOrEqual(m_value, 0) ? xsInteger(m_value) : -xsInteger(m_value)).asAtomicValue())));
+        }
+
+        /**
+         * @returns always @c false, @c xs:DerivedInteger doesn't have
+         * not-a-number in its value space.
+         */
+        virtual bool isNaN() const
+        {
+            return false;
+        }
+
+        /**
+         * @returns always @c false, @c xs:DerivedInteger doesn't have
+         * infinity in its value space.
+         */
+        virtual bool isInf() const
+        {
+            return false;
+        }
+
+        virtual Item toNegated() const
+        {
+            return Integer::fromValue(-xsInteger(m_value));
+        }
+
+        virtual bool isSigned() const
+        {
+            switch(DerivedType)
+            {
+                /* Fallthrough all these. */
+                case TypeByte:
+                case TypeInt:
+                case TypeLong:
+                case TypeNegativeInteger:
+                case TypeNonNegativeInteger:
+                case TypeNonPositiveInteger:
+                case TypePositiveInteger:
+                case TypeShort:
+                    return true;
+                /* Fallthrough all these. */
+                case TypeUnsignedByte:
+                case TypeUnsignedInt:
+                case TypeUnsignedLong:
+                case TypeUnsignedShort:
+                    return false;
+            }
+            return false;
+        }
+
+        virtual qulonglong toUnsignedInteger() const
+        {
+            switch(DerivedType)
+            {
+                /* Fallthrough all these. */
+                case TypeByte:
+                case TypeInt:
+                case TypeLong:
+                case TypeNegativeInteger:
+                case TypeNonNegativeInteger:
+                case TypeNonPositiveInteger:
+                case TypePositiveInteger:
+                case TypeShort:
+                    Q_ASSERT_X(false, Q_FUNC_INFO,
+                               "It makes no sense to call this function, see Numeric::toUnsignedInteger().");
+                /* Fallthrough all these. */
+                case TypeUnsignedByte:
+                case TypeUnsignedInt:
+                case TypeUnsignedLong:
+                case TypeUnsignedShort:
+                    return m_value;
+            }
+            return 0;
+        }
+
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qderivedstring_p.h b/src/xmlpatterns/data/qderivedstring_p.h
new file mode 100644
index 0000000..9142b87
--- /dev/null
+++ b/src/xmlpatterns/data/qderivedstring_p.h
@@ -0,0 +1,341 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_DerivedString_H
+#define Patternist_DerivedString_H
+
+#include <QRegExp>
+
+#include "private/qxmlutils_p.h"
+#include "qbuiltintypes_p.h"
+#include "qpatternistlocale_p.h"
+#include "qvalidationerror_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Represents instances of derived @c xs:string types, such as @c
+     * xs:normalizedString.
+     *
+     * Whitespace is a significant part for creating values from the lexical
+     * space. Of course the specification is tricky here. Here's some pointers:
+     *
+     * - From <a href="4.3.6.1 The whiteSpace Schema Component">XML Schema Part 2: Datatypes
+     *   Second Edition, 4.3.6 whiteSpace</a>:
+     *   "For all atomic datatypes other than string (and types
+     *   derived by restriction from it) the value of whiteSpace is
+     *   collapse and cannot be changed by a schema author; for string the
+     *   value of whiteSpace is preserve; for any type derived by
+     *   restriction from string the value of whiteSpace can be any of the
+     *   three legal values."
+     * - From <a href="http://www.w3.org/TR/xmlschema-1/#d0e1654">XML Schema Part 1: Structures
+     *   Second Edition, 3.1.4 White Space Normalization during Validation</a>:
+     *   "[Definition:]  The normalized value of an element or attribute
+     *   information item is an initial value whose white space, if any,
+     *   has been normalized according to the value of the whiteSpace facet of
+     *   the simple type definition used in its validation."
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     * @todo Documentation is missing
+     */
+    template<TypeOfDerivedString DerivedType>
+    class DerivedString : public AtomicValue
+    {
+    private:
+        static inline ItemType::Ptr itemType()
+        {
+            switch(DerivedType)
+            {
+                case TypeNormalizedString:  return BuiltinTypes::xsNormalizedString;
+                case TypeToken:             return BuiltinTypes::xsToken;
+                case TypeLanguage:          return BuiltinTypes::xsLanguage;
+                case TypeNMTOKEN:           return BuiltinTypes::xsNMTOKEN;
+                case TypeName:              return BuiltinTypes::xsName;
+                case TypeNCName:            return BuiltinTypes::xsNCName;
+                case TypeID:                return BuiltinTypes::xsID;
+                case TypeIDREF:             return BuiltinTypes::xsIDREF;
+                case TypeENTITY:            return BuiltinTypes::xsENTITY;
+                case TypeString:            return BuiltinTypes::xsString;
+            }
+
+            Q_ASSERT_X(false, Q_FUNC_INFO, "This line is not supposed to be reached.");
+            return ItemType::Ptr();
+        }
+
+        const QString m_value;
+
+        inline DerivedString(const QString &value) : m_value(value)
+        {
+        }
+
+        /**
+         * @short This is an incomplete test for whether @p ch conforms to
+         * the XML 1.0 NameChar production.
+         */
+        static inline bool isNameChar(const QChar &ch)
+        {
+            return ch.isLetter()            ||
+                   ch.isDigit()             ||
+                   ch == QLatin1Char('.')   ||
+                   ch == QLatin1Char('-')   ||
+                   ch == QLatin1Char('_')   ||
+                   ch == QLatin1Char(':');
+        }
+
+        /**
+         * @returns @c true if @p input is a valid @c xs:Name.
+         * @see <a href="http://www.w3.org/TR/REC-xml/#NT-Name">Extensible
+         * Markup Language (XML) 1.0 (Fourth Edition), [5] Name</a>
+         */
+        static inline bool isValidName(const QString &input)
+        {
+            if(input.isEmpty())
+                return false;
+
+            const QChar first(input.at(0));
+
+            if(first.isLetter()             ||
+               first == QLatin1Char('_')    ||
+               first == QLatin1Char(':'))
+            {
+                const int len = input.length();
+
+                if(len == 1)
+                    return true;
+
+                /* Since we've checked the first character above, we start at
+                 * position 1. */
+                for(int i = 1; i < len; ++i)
+                {
+                    if(!isNameChar(input.at(i)))
+                        return false;
+                }
+
+                return true;
+            }
+            else
+                return false;
+        }
+
+        /**
+         * @returns @c true if @p input conforms to the XML 1.0 @c Nmtoken product.
+         *
+         * @see <a
+         * href="http://www.w3.org/TR/2000/WD-xml-2e-20000814#NT-Nmtoken">Extensible
+         * Markup Language (XML) 1.0 (Second Edition), [7] Nmtoken</a>
+         */
+        static inline bool isValidNMTOKEN(const QString &input)
+        {
+            const int len = input.length();
+
+            if(len == 0)
+                return false;
+
+            for(int i = 0; i < len; ++i)
+            {
+                if(!isNameChar(input.at(i)))
+                    return false;
+            }
+
+            return true;
+        }
+
+        /**
+         * @short Performs attribute value normalization as if @p input was not
+         * from a @c CDATA section.
+         *
+         * Each whitespace character in @p input that's not a space, such as tab
+         * or new line character, is replaced with a space. This algorithm
+         * differs from QString::simplified() in that it doesn't collapse
+         * subsequent whitespace characters to a single one, or remove trailing
+         * and leading space.
+         *
+         * @see <a href="http://www.w3.org/TR/REC-xml/#AVNormalize">Extensible
+         * Markup Language (XML) 1.0 (Second Edition), 3.3.3 [E70]Attribute-Value Normalization</a>
+         */
+        static QString attributeNormalize(const QString &input)
+        {
+            QString retval(input);
+            const int len = retval.length();
+            const QLatin1Char space(' ');
+
+            for(int i = 0; i < len; ++i)
+            {
+                const QChar ati(retval.at(i));
+
+                if(ati.isSpace() && ati != space)
+                    retval[i] = space;
+            }
+
+            return retval;
+        }
+
+        static AtomicValue::Ptr error(const NamePool::Ptr &np, const QString &invalidValue)
+        {
+            return ValidationError::createError(QString::fromLatin1("%1 is not a valid value for "
+                                                                    "type %2.").arg(formatData(invalidValue))
+                                                                               .arg(formatType(np, itemType())));
+        }
+
+    public:
+
+        /**
+         * @note This function doesn't perform any cleanup/normalizaiton of @p
+         * value. @p value must be a canonical value space of the type.
+         *
+         * If you want cleanup to be performed and/or the lexical space
+         * checked, use fromLexical().
+         */
+        static AtomicValue::Ptr fromValue(const QString &value)
+        {
+            return AtomicValue::Ptr(new DerivedString(value));
+        }
+
+        /**
+         * Constructs an instance from the lexical
+         * representation @p lexical.
+         */
+        static AtomicValue::Ptr fromLexical(const NamePool::Ptr &np, const QString &lexical)
+        {
+            switch(DerivedType)
+            {
+                case TypeString:
+                    return AtomicValue::Ptr(new DerivedString(lexical));
+                case TypeNormalizedString:
+                    return AtomicValue::Ptr(new DerivedString(attributeNormalize(lexical)));
+                case TypeToken:
+                    return AtomicValue::Ptr(new DerivedString(lexical.simplified()));
+                case TypeLanguage:
+                {
+                    const QString simplified(lexical.trimmed());
+
+                    const QRegExp validate(QLatin1String("[a-zA-Z]{1,8}(-[a-zA-Z0-9]{1,8})*"));
+                    Q_ASSERT(validate.isValid());
+
+                    if(validate.exactMatch(simplified))
+                        return AtomicValue::Ptr(new DerivedString(lexical.simplified()));
+                    else
+                        return error(np, simplified);
+                }
+                case TypeNMTOKEN:
+                {
+                    const QString trimmed(lexical.trimmed());
+
+                    if(isValidNMTOKEN(trimmed))
+                        return AtomicValue::Ptr(new DerivedString(trimmed));
+                    else
+                        return error(np, trimmed);
+                }
+                case TypeName:
+                {
+                    const QString simplified(lexical.simplified());
+
+                    if(isValidName(simplified))
+                        return AtomicValue::Ptr(new DerivedString(simplified));
+                    else
+                        return error(np, simplified);
+                }
+                case TypeID:
+                /* Fallthrough. */
+                case TypeIDREF:
+                /* Fallthrough. */
+                case TypeENTITY:
+                /* Fallthrough. */
+                case TypeNCName:
+                {
+                    /* We treat xs:ID, xs:ENTITY, xs:IDREF and xs:NCName in the exact same
+                     * way, except for the type annotation.
+                     *
+                     * We use trimmed() instead of simplified() because it's
+                     * faster and whitespace isn't allowed between
+                     * non-whitespace characters anyway, for these types. */
+                    const QString trimmed(lexical.trimmed());
+
+                    if(QXmlUtils::isNCName(trimmed))
+                        return AtomicValue::Ptr(new DerivedString(trimmed));
+                    else
+                        return error(np, trimmed);
+                }
+                default:
+                {
+                    Q_ASSERT_X(false, Q_FUNC_INFO, "This line is not supposed to be reached.");
+                    return AtomicValue::Ptr();
+                }
+            }
+        }
+
+        virtual QString stringValue() const
+        {
+            return m_value;
+        }
+
+        virtual bool evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const
+        {
+             return m_value.length() > 0;
+        }
+
+        virtual ItemType::Ptr type() const
+        {
+            return itemType();
+        }
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qduration.cpp b/src/xmlpatterns/data/qduration.cpp
new file mode 100644
index 0000000..6849a8b
--- /dev/null
+++ b/src/xmlpatterns/data/qduration.cpp
@@ -0,0 +1,244 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qabstractdatetime_p.h"
+#include "qbuiltintypes_p.h"
+#include "qitem_p.h"
+
+#include "qduration_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+Duration::Duration(const bool isPositiveP,
+                   const YearProperty yearsP,
+                   const MonthProperty monthsP,
+                   const DayCountProperty daysP,
+                   const HourProperty hoursP,
+                   const MinuteProperty mins,
+                   const SecondProperty secs,
+                   const MSecondProperty msecs) : AbstractDuration(isPositiveP),
+                                                  m_years(yearsP),
+                                                  m_months(monthsP),
+                                                  m_days(daysP),
+                                                  m_hours(hoursP),
+                                                  m_minutes(mins),
+                                                  m_seconds(secs),
+                                                  m_mseconds(msecs)
+{
+}
+
+Duration::Ptr Duration::fromLexical(const QString &lexical)
+{
+    static const CaptureTable captureTable(
+        /* The extra paranthesis is a build fix for GCC 3.3. */
+        (QRegExp(QLatin1String(
+                "^\\s*"                         /* Any preceding whitespace. */
+                "(-)?"                          /* Any minus sign. */
+                "P"                             /* Delimiter. */
+                "(?:(\\d+)Y)?"                  /* Year part. */
+                "(?:(\\d+)M)?"                  /* Month part. */
+                "(?:(\\d+)D)?"                  /* Day part. */
+                "(?:"                           /* Here starts the optional time part. */
+                "(T)"                           /* SchemaTime delimiter. */
+                "(?:(\\d+)H)?"                  /* Hour part. */
+                "(?:(\\d+)M)?"                  /* Minute part. */
+                "(?:(\\d+)(?:\\.(\\d+))?S)?"    /* Seconds & milli seconds. */
+                ")?"                            /* End of optional time part. */
+                "\\s*$"                         /* Any terminating whitespace. */))),
+        /*yearP*/       2,
+        /*monthP*/      3,
+        /*dayP*/        4,
+        /*tDelimiterP*/ 5,
+        /*hourP*/       6,
+        /*minutesP*/    7,
+        /*secondsP*/    8,
+        /*msecondsP*/   9);
+
+    YearProperty years = 0;
+    MonthProperty months = 0;
+    DayCountProperty days = 0;
+    HourProperty hours = 0;
+    MinuteProperty minutes = 0;
+    SecondProperty sec = 0;
+    MSecondProperty msec = 0;
+    bool isPos;
+
+    const AtomicValue::Ptr err(create(captureTable, lexical, &isPos, &years, &months,
+                                      &days, &hours, &minutes, &sec, &msec));
+
+    return err ? err : Duration::Ptr(new Duration(isPos, years, months, days, hours,
+                                                  minutes, sec, msec));
+}
+
+Duration::Ptr Duration::fromComponents(const bool isPositive,
+                                       const YearProperty years,
+                                       const MonthProperty months,
+                                       const DayCountProperty days,
+                                       const HourProperty hours,
+                                       const MinuteProperty minutes,
+                                       const SecondProperty seconds,
+                                       const MSecondProperty mseconds)
+{
+    return Duration::Ptr(new Duration(isPositive, years, months, days,
+                                      hours, minutes, seconds, mseconds));
+}
+
+AbstractDuration::Value Duration::value() const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO,
+               "Calling Duration::value() makes no sense");
+    return 0;
+}
+
+Item Duration::fromValue(const Value) const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO,
+               "Calling Duration::fromValue() makes no sense");
+    return Item();
+}
+
+QString Duration::stringValue() const
+{
+    QString retval;
+
+    if(!m_isPositive)
+        retval.append(QLatin1Char('-'));
+
+    retval.append(QLatin1Char('P'));
+
+    if(m_years)
+    {
+        retval.append(QString::number(m_years));
+        retval.append(QLatin1Char('Y'));
+    }
+
+    if(m_months)
+    {
+        retval.append(QString::number(m_months));
+        retval.append(QLatin1Char('M'));
+    }
+
+    if(m_days)
+    {
+        retval.append(QString::number(m_days));
+        retval.append(QLatin1Char('D'));
+    }
+
+    if(!m_hours && !m_minutes && !m_seconds && !m_seconds)
+    {
+        if(!m_years && !m_months && !m_days)
+            return QLatin1String("PT0S");
+        else
+            return retval;
+    }
+
+    retval.append(QLatin1Char('T'));
+
+    if(m_hours)
+    {
+        retval.append(QString::number(m_hours));
+        retval.append(QLatin1Char('H'));
+    }
+
+    if(m_minutes)
+    {
+        retval.append(QString::number(m_minutes));
+        retval.append(QLatin1Char('M'));
+    }
+
+    if(m_seconds || m_seconds)
+    {
+        retval.append(QString::number(m_seconds));
+
+        if(m_mseconds)
+            retval.append(serializeMSeconds(m_mseconds));
+
+        retval.append(QLatin1Char('S'));
+    }
+    else if(!m_years && !m_months && !m_days && !m_hours && !m_minutes)
+        retval.append(QLatin1String("0S"));
+
+    return retval;
+}
+
+YearProperty Duration::years() const
+{
+    return m_years;
+}
+
+MonthProperty Duration::months() const
+{
+    return m_months;
+}
+
+DayCountProperty Duration::days() const
+{
+    return m_days;
+}
+
+HourProperty Duration::hours() const
+{
+    return m_hours;
+}
+
+MinuteProperty Duration::minutes() const
+{
+    return m_minutes;
+}
+
+SecondProperty Duration::seconds() const
+{
+    return m_seconds;
+}
+
+MSecondProperty Duration::mseconds() const
+{
+    return m_mseconds;
+}
+
+ItemType::Ptr Duration::type() const
+{
+    return BuiltinTypes::xsDuration;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qduration_p.h b/src/xmlpatterns/data/qduration_p.h
new file mode 100644
index 0000000..de84a1a
--- /dev/null
+++ b/src/xmlpatterns/data/qduration_p.h
@@ -0,0 +1,136 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_Duration_H
+#define Patternist_Duration_H
+
+#include "qabstractduration_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Implements the value instance of the @c xs:duration type.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class Duration : public AbstractDuration
+    {
+    public:
+        typedef AtomicValue::Ptr Ptr;
+
+        /**
+         * Creates an instance from the lexical representation @p string.
+         */
+        static Duration::Ptr fromLexical(const QString &string);
+        static Duration::Ptr fromComponents(const bool isPositive,
+                                            const YearProperty years,
+                                            const MonthProperty months,
+                                            const DayCountProperty days,
+                                            const HourProperty hours,
+                                            const MinuteProperty minutes,
+                                            const SecondProperty seconds,
+                                            const MSecondProperty mseconds);
+
+        virtual ItemType::Ptr type() const;
+        virtual QString stringValue() const;
+
+        /**
+         * Always results in an assert crash. Calling this function makes no
+         * sense due to that the value space of xs:duration is not well defined.
+         */
+        virtual Value value() const;
+
+        /**
+         * Always results in an assert crash. Calling this function makes no
+         * sense due to that the value space of xs:duration is not well defined.
+         */
+        virtual Item fromValue(const Value val) const;
+
+        virtual YearProperty years() const;
+        virtual MonthProperty months() const;
+        virtual DayCountProperty days() const;
+        virtual HourProperty hours() const;
+        virtual MinuteProperty minutes() const;
+        virtual SecondProperty seconds() const;
+        virtual MSecondProperty mseconds() const;
+
+    protected:
+        friend class CommonValues;
+
+        Duration(const bool isPositive,
+                 const YearProperty years,
+                 const MonthProperty months,
+                 const DayCountProperty days,
+                 const HourProperty hours,
+                 const MinuteProperty minutes,
+                 const SecondProperty seconds,
+                 const MSecondProperty mseconds);
+    private:
+        const YearProperty      m_years;
+        const MonthProperty     m_months;
+        const DayCountProperty  m_days;
+        const HourProperty      m_hours;
+        const MinuteProperty    m_minutes;
+        const SecondProperty    m_seconds;
+        const MSecondProperty   m_mseconds;
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qgday.cpp b/src/xmlpatterns/data/qgday.cpp
new file mode 100644
index 0000000..c11acbd
--- /dev/null
+++ b/src/xmlpatterns/data/qgday.cpp
@@ -0,0 +1,96 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qbuiltintypes_p.h"
+
+#include "qgday_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+GDay::GDay(const QDateTime &dateTime) : AbstractDateTime(dateTime)
+{
+}
+
+GDay::Ptr GDay::fromLexical(const QString &lexical)
+{
+    static const CaptureTable captureTable( // STATIC DATA
+        /* The extra paranthesis is a build fix for GCC 3.3. */
+        (QRegExp(QLatin1String(
+                "^\\s*"                                 /* Any preceding whitespace. */
+                "---"                                   /* Delimiter. */
+                "(\\d{2})"                              /* The day part, "03". */
+                "(?:(?:(\\+|-))(\\d{2}):(\\d{2})|(Z))?" /* Timezone, "+08:24". */
+                "\\s*$"                                 /* Any whitespace at the end. */))),
+        /*zoneOffsetSignP*/         2,
+        /*zoneOffsetHourP*/         3,
+        /*zoneOffsetMinuteP*/       4,
+        /*zoneOffsetUTCSymbolP*/    5,
+        /*yearP*/                   -1,
+        /*monthP*/                  -1,
+        /*dayP*/                    1);
+
+    AtomicValue::Ptr err;
+    const QDateTime retval(create(err, lexical, captureTable));
+
+    return err ? err : GDay::Ptr(new GDay(retval));
+}
+
+GDay::Ptr GDay::fromDateTime(const QDateTime &dt)
+{
+    QDateTime result(QDate(DefaultYear, DefaultMonth, dt.date().day()));
+    copyTimeSpec(dt, result);
+
+    return GDay::Ptr(new GDay(result));
+}
+
+QString GDay::stringValue() const
+{
+    return m_dateTime.toString(QLatin1String("---dd")) + zoneOffsetToString();
+}
+
+ItemType::Ptr GDay::type() const
+{
+    return BuiltinTypes::xsGDay;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qgday_p.h b/src/xmlpatterns/data/qgday_p.h
new file mode 100644
index 0000000..b958769
--- /dev/null
+++ b/src/xmlpatterns/data/qgday_p.h
@@ -0,0 +1,94 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_GDay_H
+#define Patternist_GDay_H
+
+#include "qabstractdatetime_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Implements the value instance of the @c xs:gDay type.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class GDay : public AbstractDateTime
+    {
+    public:
+        typedef AtomicValue::Ptr Ptr;
+
+        /**
+         * Creates an instance from the lexical representation @p string.
+         */
+        static GDay::Ptr fromLexical(const QString &string);
+        static GDay::Ptr fromDateTime(const QDateTime &dt);
+
+        virtual ItemType::Ptr type() const;
+        virtual QString stringValue() const;
+
+    protected:
+        friend class CommonValues;
+
+        GDay(const QDateTime &dateTime);
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qgmonth.cpp b/src/xmlpatterns/data/qgmonth.cpp
new file mode 100644
index 0000000..1651735
--- /dev/null
+++ b/src/xmlpatterns/data/qgmonth.cpp
@@ -0,0 +1,95 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qbuiltintypes_p.h"
+
+#include "qgmonth_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+GMonth::GMonth(const QDateTime &dateTime) : AbstractDateTime(dateTime)
+{
+}
+
+GMonth::Ptr GMonth::fromLexical(const QString &lexical)
+{
+    static const CaptureTable captureTable( // STATIC DATA
+        /* The extra paranthesis is a build fix for GCC 3.3. */
+        (QRegExp(QLatin1String(
+                "^\\s*"                             /* Any preceding whitespace. */
+                "--"                                /* Delimier. */
+                "(\\d{2})"                          /* The month part, "03". */
+                "(?:(\\+|-)(\\d{2}):(\\d{2})|(Z))?" /* Timezone, "+08:24". */
+                "\\s*$"                             /* Any terminating whitespace. */))),
+        /*zoneOffsetSignP*/         2,
+        /*zoneOffsetHourP*/         3,
+        /*zoneOffsetMinuteP*/       4,
+        /*zoneOffsetUTCSymbolP*/    5,
+        /*yearP*/                   -1,
+        /*monthP*/                  1);
+
+    AtomicValue::Ptr err;
+    const QDateTime retval(create(err, lexical, captureTable));
+
+    return err ? err : GMonth::Ptr(new GMonth(retval));
+}
+
+GMonth::Ptr GMonth::fromDateTime(const QDateTime &dt)
+{
+    QDateTime result(QDate(DefaultYear, dt.date().month(), DefaultDay));
+    copyTimeSpec(dt, result);
+
+    return GMonth::Ptr(new GMonth(result));
+}
+
+QString GMonth::stringValue() const
+{
+    return m_dateTime.toString(QLatin1String("--MM")) + zoneOffsetToString();
+}
+
+ItemType::Ptr GMonth::type() const
+{
+    return BuiltinTypes::xsGMonth;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qgmonth_p.h b/src/xmlpatterns/data/qgmonth_p.h
new file mode 100644
index 0000000..2ff766a
--- /dev/null
+++ b/src/xmlpatterns/data/qgmonth_p.h
@@ -0,0 +1,94 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_GMonth_H
+#define Patternist_GMonth_H
+
+#include "qabstractdatetime_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Implements the value instance of the @c xs:gMonth type.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class GMonth : public AbstractDateTime
+    {
+    public:
+        typedef AtomicValue::Ptr Ptr;
+
+        /**
+         * Creates an instance from the lexical representation @p string.
+         */
+        static GMonth::Ptr fromLexical(const QString &string);
+        static GMonth::Ptr fromDateTime(const QDateTime &dt);
+
+        virtual ItemType::Ptr type() const;
+        virtual QString stringValue() const;
+
+    protected:
+        friend class CommonValues;
+
+        GMonth(const QDateTime &dateTime);
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qgmonthday.cpp b/src/xmlpatterns/data/qgmonthday.cpp
new file mode 100644
index 0000000..fe1210d
--- /dev/null
+++ b/src/xmlpatterns/data/qgmonthday.cpp
@@ -0,0 +1,98 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qbuiltintypes_p.h"
+
+#include "qgmonthday_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+GMonthDay::GMonthDay(const QDateTime &dateTime) : AbstractDateTime(dateTime)
+{
+}
+
+GMonthDay::Ptr GMonthDay::fromLexical(const QString &lexical)
+{
+    static const CaptureTable captureTable( // STATIC DATA
+        /* The extra paranthesis is a build fix for GCC 3.3. */
+        (QRegExp(QLatin1String(
+                "^\\s*"                             /* Any preceding whitespace. */
+                "--"                                /* Delimiter. */
+                "(\\d{2})"                          /* The month part. */
+                "-"                                 /* Delimiter. */
+                "(\\d{2})"                          /* The day part. */
+                "(?:(\\+|-)(\\d{2}):(\\d{2})|(Z))?" /* The zone offset, "+08:24". */
+                "\\s*$"                             /* Any terminating whitespace. */))),
+        /*zoneOffsetSignP*/         3,
+        /*zoneOffsetHourP*/         4,
+        /*zoneOffsetMinuteP*/       5,
+        /*zoneOffsetUTCSymbolP*/    6,
+        /*yearP*/                   -1,
+        /*monthP*/                  1,
+        /*dayP*/                    2);
+
+    AtomicValue::Ptr err;
+    const QDateTime retval(create(err, lexical, captureTable));
+
+    return err ? err : GMonthDay::Ptr(new GMonthDay(retval));
+}
+
+GMonthDay::Ptr GMonthDay::fromDateTime(const QDateTime &dt)
+{
+    QDateTime result(QDate(DefaultYear, dt.date().month(), dt.date().day()));
+    copyTimeSpec(dt, result);
+
+    return GMonthDay::Ptr(new GMonthDay(result));
+}
+
+QString GMonthDay::stringValue() const
+{
+    return m_dateTime.toString(QLatin1String("--MM-dd")) + zoneOffsetToString();
+}
+
+ItemType::Ptr GMonthDay::type() const
+{
+    return BuiltinTypes::xsGMonthDay;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qgmonthday_p.h b/src/xmlpatterns/data/qgmonthday_p.h
new file mode 100644
index 0000000..a979646
--- /dev/null
+++ b/src/xmlpatterns/data/qgmonthday_p.h
@@ -0,0 +1,95 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_GMonthDay_H
+#define Patternist_GMonthDay_H
+
+#include "qabstractdatetime_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Implements the value instance of the @c xs:gYearMonth type.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class GMonthDay : public AbstractDateTime
+    {
+    public:
+        typedef AtomicValue::Ptr Ptr;
+
+        /**
+         * Creates an instance from the lexical representation @p string.
+         */
+        static GMonthDay::Ptr fromLexical(const QString &string);
+        static GMonthDay::Ptr fromDateTime(const QDateTime &dt);
+
+        virtual ItemType::Ptr type() const;
+
+        virtual QString stringValue() const;
+
+    protected:
+        friend class CommonValues;
+
+        GMonthDay(const QDateTime &dateTime);
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qgyear.cpp b/src/xmlpatterns/data/qgyear.cpp
new file mode 100644
index 0000000..488cd5e
--- /dev/null
+++ b/src/xmlpatterns/data/qgyear.cpp
@@ -0,0 +1,101 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qbuiltintypes_p.h"
+
+#include "qgyear_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+GYear::GYear(const QDateTime &dateTime) : AbstractDateTime(dateTime)
+{
+}
+
+GYear::Ptr GYear::fromLexical(const QString &lexical)
+{
+    static const CaptureTable captureTable( // STATIC DATA
+        /* The extra paranthesis is a build fix for GCC 3.3. */
+        (QRegExp(QLatin1String(
+                "^\\s*"                             /* Any preceding whitespace. */
+                "(-?)"                              /* Any preceding minus. */
+                "(-?\\d{4,})"                       /* The year part, "1999". */
+                "(?:(\\+|-)(\\d{2}):(\\d{2})|(Z))?" /* The zone offset, "+08:24". */
+                "\\s*$"                             /* Any terminating whitespace. */))),
+        /*zoneOffsetSignP*/         3,
+        /*zoneOffsetHourP*/         4,
+        /*zoneOffsetMinuteP*/       5,
+        /*zoneOffsetUTCSymbolP*/    6,
+        /*yearP*/                   2,
+        /*monthP*/                  -1,
+        /*dayP*/                    -1,
+        /*hourP*/                   -1,
+        /*minutesP*/                -1,
+        /*secondsP*/                -1,
+        /*msecondsP*/               -1,
+        /*yearSign*/                1);
+
+    AtomicValue::Ptr err;
+    const QDateTime retval(create(err, lexical, captureTable));
+
+    return err ? err : GYear::Ptr(new GYear(retval));
+}
+
+GYear::Ptr GYear::fromDateTime(const QDateTime &dt)
+{
+    QDateTime result(QDate(dt.date().year(), DefaultMonth, DefaultDay));
+    copyTimeSpec(dt, result);
+
+    return GYear::Ptr(new GYear(result));
+}
+
+QString GYear::stringValue() const
+{
+    return m_dateTime.toString(QLatin1String("yyyy")) + zoneOffsetToString();
+}
+
+ItemType::Ptr GYear::type() const
+{
+    return BuiltinTypes::xsGYear;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qgyear_p.h b/src/xmlpatterns/data/qgyear_p.h
new file mode 100644
index 0000000..a02f0c2
--- /dev/null
+++ b/src/xmlpatterns/data/qgyear_p.h
@@ -0,0 +1,94 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_GYear_H
+#define Patternist_GYear_H
+
+#include "qabstractdatetime_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Implements the value instance of the @c xs:gYear type.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class GYear : public AbstractDateTime
+    {
+    public:
+        typedef AtomicValue::Ptr Ptr;
+
+        /**
+         * Creates an instance from the lexical representation @p string.
+         */
+        static GYear::Ptr fromLexical(const QString &string);
+        static GYear::Ptr fromDateTime(const QDateTime &dt);
+
+        virtual ItemType::Ptr type() const;
+        virtual QString stringValue() const;
+
+    protected:
+        friend class CommonValues;
+
+        GYear(const QDateTime &dateTime);
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qgyearmonth.cpp b/src/xmlpatterns/data/qgyearmonth.cpp
new file mode 100644
index 0000000..665059b
--- /dev/null
+++ b/src/xmlpatterns/data/qgyearmonth.cpp
@@ -0,0 +1,103 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qbuiltintypes_p.h"
+
+#include "qgyearmonth_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+GYearMonth::GYearMonth(const QDateTime &dateTime) : AbstractDateTime(dateTime)
+{
+}
+
+GYearMonth::Ptr GYearMonth::fromLexical(const QString &lexical)
+{
+    static const CaptureTable captureTable( // STATIC DATA
+        /* The extra paranthesis is a build fix for GCC 3.3. */
+        (QRegExp(QLatin1String(
+                "^\\s*"                             /* Any preceding whitespace. */
+                "(-?)"                              /* Any preceding minus. */
+                "(\\d{4,})"                         /* The year part. */
+                "-"                                 /* Delimiter. */
+                "(\\d{2})"                          /* The month part. */
+                "(?:(\\+|-)(\\d{2}):(\\d{2})|(Z))?" /* The zone offset, "+08:24". */
+                "\\s*$"                             /* Any terminating whitespace. */))),
+        /*zoneOffsetSignP*/         4,
+        /*zoneOffsetHourP*/         5,
+        /*zoneOffsetMinuteP*/       6,
+        /*zoneOffsetUTCSymbolP*/    7,
+        /*yearP*/                   2,
+        /*monthP*/                  3,
+        /*dayP*/                    -1,
+        /*hourP*/                   -1,
+        /*minutesP*/                -1,
+        /*secondsP*/                -1,
+        /*msecondsP*/               -1,
+        /*yearSign*/                1);
+
+    AtomicValue::Ptr err;
+    const QDateTime retval(create(err, lexical, captureTable));
+
+    return err ? err : GYearMonth::Ptr(new GYearMonth(retval));
+}
+
+GYearMonth::Ptr GYearMonth::fromDateTime(const QDateTime &dt)
+{
+    QDateTime result(QDate(dt.date().year(), dt.date().month(), DefaultDay));
+    copyTimeSpec(dt, result);
+
+    return GYearMonth::Ptr(new GYearMonth(result));
+}
+
+QString GYearMonth::stringValue() const
+{
+    return m_dateTime.toString(QLatin1String("yyyy-MM")) + zoneOffsetToString();
+}
+
+ItemType::Ptr GYearMonth::type() const
+{
+    return BuiltinTypes::xsGYearMonth;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qgyearmonth_p.h b/src/xmlpatterns/data/qgyearmonth_p.h
new file mode 100644
index 0000000..6d74d8e
--- /dev/null
+++ b/src/xmlpatterns/data/qgyearmonth_p.h
@@ -0,0 +1,94 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_GYearMonth_H
+#define Patternist_GYearMonth_H
+
+#include "qabstractdatetime_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Implements the value instance of the @c xs:gYearMonth type.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class GYearMonth : public AbstractDateTime
+    {
+    public:
+        typedef AtomicValue::Ptr Ptr;
+
+        /**
+         * Creates an instance from the lexical representation @p string.
+         */
+        static GYearMonth::Ptr fromLexical(const QString &string);
+        static GYearMonth::Ptr fromDateTime(const QDateTime &dt);
+
+        virtual ItemType::Ptr type() const;
+        virtual QString stringValue() const;
+
+    protected:
+        friend class CommonValues;
+
+        GYearMonth(const QDateTime &dateTime);
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qhexbinary.cpp b/src/xmlpatterns/data/qhexbinary.cpp
new file mode 100644
index 0000000..c9360fe
--- /dev/null
+++ b/src/xmlpatterns/data/qhexbinary.cpp
@@ -0,0 +1,151 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 <QtGlobal>
+
+#include "qbase64binary_p.h"
+#include "qbuiltintypes_p.h"
+#include "qpatternistlocale_p.h"
+#include "qvalidationerror_p.h"
+
+#include "qhexbinary_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+HexBinary::HexBinary(const QByteArray &val) : Base64Binary(val)
+{
+}
+
+qint8 HexBinary::fromHex(const QChar &c)
+{
+    if(c.unicode() > 'f')
+        return -1;
+
+    const char *const range = "0123456789ABCDEFabcdef";
+
+    const char *const in = strchr(range, c.unicode());
+
+    if(!in)
+        return -1;
+
+    /* Pointer arithmetic. */
+    int digit = in - range;
+
+    if(digit > 15)
+        digit -= 6;
+
+    return digit;
+}
+
+AtomicValue::Ptr HexBinary::fromLexical(const NamePool::Ptr &np, const QString &str)
+{
+    const QString lexical(str.trimmed());
+    const int len = lexical.length();
+
+    if(len == 0)
+        return AtomicValue::Ptr(new HexBinary(QByteArray()));
+
+    if((len & 1) != 0)
+    {
+        /* Catch a common case. */
+        return ValidationError::createError(QtXmlPatterns::tr(
+                  "A value of type %1 must contain an even number of "
+                  "digits. The value %2 does not.")
+                  .arg(formatType(np, BuiltinTypes::xsHexBinary),
+                       formatData(QString::number(len))));
+    }
+
+    QByteArray val;
+    val.resize(len / 2);
+
+    for(int i = 0; i < len / 2; ++i)
+    {
+        qint8 p1 = fromHex(lexical[i * 2]);
+        qint8 p2 = fromHex(lexical[i * 2 + 1]);
+
+        if(p1 == -1 || p2 == -1)
+        {
+            const QString hex(QString::fromLatin1("%1%2").arg(lexical[i * 2], lexical[i * 2 + 1]));
+
+            return ValidationError::createError(QtXmlPatterns::tr(
+                             "%1 is not valid as a value of type %2.")
+                             .arg(formatData(hex),
+                                  formatType(np, BuiltinTypes::xsHexBinary)));
+        }
+
+        val[i] = static_cast<char>(p1 * 16 + p2);
+    }
+    Q_ASSERT(!val.isEmpty());
+
+    return AtomicValue::Ptr(new HexBinary(val));
+}
+
+HexBinary::Ptr HexBinary::fromValue(const QByteArray &data)
+{
+    return HexBinary::Ptr(new HexBinary(data));
+}
+
+QString HexBinary::stringValue() const
+{
+    static const char s_toHex[] = "0123456789ABCDEF";
+    const int len = m_value.count();
+    QString result;
+    result.reserve(len * 2);
+
+    for(int i = 0; i < len; ++i)
+    {
+        // This cast is significant.
+        const unsigned char val = static_cast<unsigned char>(m_value.at(i));
+        result += QLatin1Char(s_toHex[val >> 4]);
+        result += QLatin1Char(s_toHex[val & 0x0F]);
+    }
+
+    return result;
+}
+
+ItemType::Ptr HexBinary::type() const
+{
+    return BuiltinTypes::xsHexBinary;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qhexbinary_p.h b/src/xmlpatterns/data/qhexbinary_p.h
new file mode 100644
index 0000000..5dd1624
--- /dev/null
+++ b/src/xmlpatterns/data/qhexbinary_p.h
@@ -0,0 +1,109 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_HexBinary_H
+#define Patternist_HexBinary_H
+
+#include "qbase64binary_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+
+    /**
+     * @short Implements the value instance of the @c xs:hexBinary type.
+     *
+     * HexBinary inherits from Base64Binary for implementation reasons. The two
+     * classes are similar, and inheritance therefore save code.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     * @todo Documentation is missing
+     */
+    class HexBinary : public Base64Binary
+    {
+    public:
+        friend class CommonValues;
+
+        typedef AtomicValue::Ptr Ptr;
+
+        virtual QString stringValue() const;
+        virtual ItemType::Ptr type() const;
+
+        /**
+         * Creates a @c xs:hexBinary from the lexical representation @p value.
+         */
+        static AtomicValue::Ptr fromLexical(const NamePool::Ptr &np, const QString &value);
+
+        /**
+         * Creates an instance representing @p value.
+         */
+        static HexBinary::Ptr fromValue(const QByteArray &data);
+
+    protected:
+        HexBinary(const QByteArray &val);
+
+    private:
+        /**
+         * @short Returns -1 on invalid input.
+         */
+        static inline qint8 fromHex(const QChar &c);
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qinteger.cpp b/src/xmlpatterns/data/qinteger.cpp
new file mode 100644
index 0000000..7fc6b3d
--- /dev/null
+++ b/src/xmlpatterns/data/qinteger.cpp
@@ -0,0 +1,164 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qbuiltintypes_p.h"
+#include "qitem_p.h"
+#include "qvalidationerror_p.h"
+
+#include "qinteger_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+Item Integer::fromValue(const xsInteger num)
+{
+    return toItem(Integer::Ptr(new Integer(num)));
+}
+
+AtomicValue::Ptr Integer::fromLexical(const QString &strNumeric)
+{
+    bool conversionOk = false;
+    const xsInteger num = strNumeric.toLongLong(&conversionOk);
+
+    if(conversionOk)
+        return AtomicValue::Ptr(new Integer(num));
+    else
+        return ValidationError::createError();
+}
+
+Integer::Integer(const xsInteger num) : m_value(num)
+{
+}
+
+bool Integer::evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return m_value != 0;
+}
+
+QString Integer::stringValue() const
+{
+    return QString::number(m_value);
+}
+
+ItemType::Ptr Integer::type() const
+{
+    return BuiltinTypes::xsInteger;
+}
+
+xsDouble Integer::toDouble() const
+{
+    return static_cast<xsDouble>(m_value);
+}
+
+xsInteger Integer::toInteger() const
+{
+    return m_value;
+}
+
+xsFloat Integer::toFloat() const
+{
+    return static_cast<xsFloat>(m_value);
+}
+
+xsDecimal Integer::toDecimal() const
+{
+    return static_cast<xsDecimal>(m_value);
+}
+
+Numeric::Ptr Integer::round() const
+{
+    /* xs:integerS never has a mantissa. */
+    return Numeric::Ptr(const_cast<Integer *>(this));
+}
+
+Numeric::Ptr Integer::roundHalfToEven(const xsInteger /*scale*/) const
+{
+    return Numeric::Ptr(const_cast<Integer *>(this));
+}
+
+Numeric::Ptr Integer::floor() const
+{
+    return Numeric::Ptr(const_cast<Integer *>(this));
+}
+
+Numeric::Ptr Integer::ceiling() const
+{
+    return Numeric::Ptr(const_cast<Integer *>(this));
+}
+
+Numeric::Ptr Integer::abs() const
+{
+    /* No reason to allocate an Integer if we're already absolute. */
+    if(m_value < 0)
+        return Numeric::Ptr(new Integer(qAbs(m_value)));
+    else
+        return Numeric::Ptr(const_cast<Integer *>(this));
+}
+
+bool Integer::isNaN() const
+{
+    return false;
+}
+
+bool Integer::isInf() const
+{
+    return false;
+}
+
+Item Integer::toNegated() const
+{
+    return fromValue(-m_value);
+}
+
+bool Integer::isSigned() const
+{
+    return true;
+}
+
+qulonglong Integer::toUnsignedInteger() const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO,
+               "It makes no sense to call this function, see Numeric::toUnsignedInteger().");
+    return 0;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qinteger_p.h b/src/xmlpatterns/data/qinteger_p.h
new file mode 100644
index 0000000..20a5931
--- /dev/null
+++ b/src/xmlpatterns/data/qinteger_p.h
@@ -0,0 +1,141 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_Integer_H
+#define Patternist_Integer_H
+
+#include "qschemanumeric_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Implements the value instance of the @c xs:integer type.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     * @todo Documentation is missing
+     */
+    class Integer : public Numeric
+    {
+    public:
+
+        typedef Numeric::Ptr Ptr;
+
+        /**
+         * Constructs an instance from the lexical
+         * representation @p strNumeric.
+         *
+         * @todo Type error handling.
+         */
+        static AtomicValue::Ptr fromLexical(const QString &strNumeric);
+
+        static Item fromValue(const xsInteger num);
+
+        /**
+         * Determines the Effective %Boolean Value of this number.
+         *
+         * @returns @c false if the number is 0, otherwise @c true.
+         */
+        bool evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const;
+
+        virtual QString stringValue() const;
+
+        /**
+         * @returns always BuiltinTypes::xsInteger
+         */
+        virtual ItemType::Ptr type() const;
+
+        virtual xsDouble toDouble() const;
+        virtual xsInteger toInteger() const;
+        virtual xsFloat toFloat() const;
+        virtual xsDecimal toDecimal() const;
+
+        virtual Numeric::Ptr round() const;
+        virtual Numeric::Ptr roundHalfToEven(const xsInteger scale) const;
+        virtual Numeric::Ptr floor() const;
+        virtual Numeric::Ptr ceiling() const;
+        virtual Numeric::Ptr abs() const;
+        virtual qulonglong toUnsignedInteger() const;
+
+        /**
+         * @returns always @c false, @c xs:integer doesn't have
+         * not-a-number in its value space.
+         */
+        virtual bool isNaN() const;
+
+        /**
+         * @returns always @c false, @c xs:integer doesn't have
+         * infinity in its value space.
+         */
+        virtual bool isInf() const;
+        virtual Item toNegated() const;
+
+        /**
+         * @short Returns always @c true.
+         */
+        virtual bool isSigned() const;
+    protected:
+        Integer(const xsInteger num);
+
+    private:
+        const xsInteger m_value;
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qitem.cpp b/src/xmlpatterns/data/qitem.cpp
new file mode 100644
index 0000000..4302fa8
--- /dev/null
+++ b/src/xmlpatterns/data/qitem.cpp
@@ -0,0 +1,58 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qbuiltintypes_p.h"
+
+#include "qitem_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+Item::Iterator::Ptr Item::sequencedTypedValue() const
+{
+    if(isAtomicValue())
+        return makeSingletonIterator(Item(atomicValue));
+    else
+        return asNode().sequencedTypedValue();
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qitem_p.h b/src/xmlpatterns/data/qitem_p.h
new file mode 100644
index 0000000..8184b25
--- /dev/null
+++ b/src/xmlpatterns/data/qitem_p.h
@@ -0,0 +1,546 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_Item_H
+#define Patternist_Item_H
+
+#include <QtXmlPatterns/private/qcppcastinghelper_p.h>
+#include <QtXmlPatterns/private/qitemtype_p.h>
+#include <QtXmlPatterns/private/qsingletoniterator_p.h>
+#include <QtXmlPatterns/QAbstractXmlNodeModel>
+
+#include <QUrl>
+#include <QVariant>
+
+/**
+ * @file
+ * @short Due to strong interdependencies, this file contains the definitions for
+ * the classes Item, QXmlNodeModelIndex, QAbstractXmlNodeModel and AtomicValue. The implementations are
+ * in their respective source files.
+ */
+
+/**
+ * @class QSharedData
+ * @short Qt's base class for reference counting.
+ */
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+template<typename T> class QList;
+template<typename T> class QVector;
+template<typename T> class QAbstractXmlForwardIterator;
+
+class QSourceLocation;
+class QAbstractXmlReceiver;
+
+namespace QPatternist
+{
+    class DynamicContext;
+    class Item;
+    class ItemType;
+    class QObjectNodeModel;
+    template<typename T> class EmptyIterator;
+    template<typename T, typename ListType> class ListIterator;
+
+    /**
+     * @short Base class for all classes representing atomic values.
+     *
+     * Instantiating AtomicValues sub classes from a value of somekind,
+     * for a certain type is done in three different ways:
+     *
+     * - The static factory fromLexical which available in most classes. This
+     * function attempts to create a value from a QString that is considered
+     * a lexical representation of the value. Thus, this function performs validation, takes
+     * care of whitespace facets, and everything else related to instantiating a value from
+     * a lexical representation.
+     * - The static factory function fromValue. This function exists for
+     * values where a C++ type exists which corresponds to the type's value space.
+     * - By using instances available in CommonValues. This is the preferred method
+     * since it uses existing singleton instances and thus saves memory. CommonValues
+     * should be used whenever possible, it can be thought as a collection of constant values.
+     *
+     * For types that does not distinguish the value space and lexical space, such as <tt>xs:string</tt>,
+     * only the fromValue() function exist, and fromLexical() is omitted.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class AtomicValue : public QSharedData
+                      , public CppCastingHelper<AtomicValue>
+    {
+    public:
+        virtual ~AtomicValue();
+
+        /**
+         * A smart pointer wrapping AtomicValue instances.
+         */
+        typedef QExplicitlySharedDataPointer<AtomicValue> Ptr;
+
+        /**
+         * A list if smart pointers wrapping AtomicValue instances.
+         */
+        typedef QList<AtomicValue::Ptr> List;
+
+        /**
+         * Determines whether this atomic value has an error. This is used
+         * for implementing casting.
+         *
+         * @returns always @c false
+         */
+        virtual bool hasError() const;
+
+        /**
+         * Always fails by issuing the type error ReportContext::FORG0006. Sub-classes
+         * whose represented type do allow EBV to be extracted from, must thus
+         * re-implement this function.
+         */
+        virtual bool evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+
+        virtual QString stringValue() const = 0;
+        virtual ItemType::Ptr type() const = 0;
+
+        /**
+         * Converts @p value to a QVariant.
+         */
+        static QVariant toQt(const AtomicValue *const value);
+
+        static inline QVariant toQt(const AtomicValue::Ptr &value)
+        {
+            return toQt(value.data());
+        }
+
+        static Item toXDM(const QVariant &value);
+
+        static ItemType::Ptr qtToXDMType(const QXmlItem &item);
+    protected:
+        inline AtomicValue()
+        {
+        }
+    };
+
+    /**
+     * @short Represents an item in the XPath 2.0 Data Model.
+     *
+     * There exists two types of items: nodes and atomic values.
+     *
+     * The XQuery 1.0 and XPath 2.0 Data Model and XML Path Language (XPath) 2.0 specification
+     * makes a very strong distinction between a sequence of items and an atomized sequence.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class Item
+    {
+        friend class QT_PREPEND_NAMESPACE(QXmlItem);
+
+    public:
+        /**
+         * A smart pointer wrapping an Item instance.
+         */
+        typedef QAbstractXmlForwardIterator<Item> Iterator;
+
+        /**
+         * A list of Item instances, each wrapped in a smart pointer.
+         */
+        typedef QList<Item> List;
+
+        /**
+         * A vector of Item instances, each wrapped in a smart pointer.
+         */
+        typedef QVector<Item> Vector;
+
+        typedef QPatternist::SingletonIterator<Item> SingletonIterator;
+        typedef QPatternist::EmptyIterator<Item> EmptyIterator;
+
+        /**
+         * Default constructor.
+         */
+        inline Item()
+        {
+            /* Note that this function should be equal to reset(). */
+
+            /* This is the area which atomicValue uses. Becauase we want as()
+             * to return null on null-constructed objects, we initialize it. */
+            node.data = 0;
+
+            /* This signals that we're not an atomic value. */
+            node.model = 0;
+        }
+
+        inline Item(const QXmlNodeModelIndex &n) : node(n.m_storage)
+        {
+        }
+
+        inline Item(const Item &other) : node(other.node)
+        {
+            Q_ASSERT_X(sizeof(QXmlNodeModelIndex) >= sizeof(AtomicValue), Q_FUNC_INFO,
+                       "Since we're only copying the node member, it must be the largest.");
+            if(isAtomicValue())
+                atomicValue->ref.ref();
+        }
+
+        inline Item(const AtomicValue::Ptr &a)
+        {
+            if(a)
+            {
+                atomicValue = a.data();
+                atomicValue->ref.ref();
+
+                /* Signal that we're housing an atomic value. */
+                node.model = reinterpret_cast<const QAbstractXmlNodeModel *>(~0);
+            }
+            else
+                node.model = 0; /* Like the default constructor. */
+        }
+
+        inline Item(const AtomicValue *const a)
+        {
+            /* Note, the implementation is a copy of the constructor above. */
+
+            if(a)
+            {
+                atomicValue = a;
+                atomicValue->ref.ref();
+
+                /* Signal that we're housing an atomic value. */
+                node.model = reinterpret_cast<const QAbstractXmlNodeModel *>(~0);
+            }
+            else
+                node.model = 0; /* Like the default constructor. */
+        }
+
+        inline ~Item()
+        {
+            if(isAtomicValue() && !atomicValue->ref.deref())
+                delete atomicValue;
+        }
+
+        inline Item &operator=(const Item &other)
+        {
+            Q_ASSERT_X(sizeof(QXmlNodeModelIndex) >= sizeof(AtomicValue *), Q_FUNC_INFO,
+                       "If this doesn't hold, we won't copy all data.");
+
+            if(other.isAtomicValue())
+                other.atomicValue->ref.ref();
+
+            if(isAtomicValue())
+            {
+                if(!atomicValue->ref.deref())
+                    delete atomicValue;
+            }
+
+            node = other.node;
+
+            return *this;
+        }
+
+        template<typename TCastTarget>
+        inline TCastTarget *as() const
+        {
+#if defined(Patternist_DEBUG) && !defined(Q_CC_XLC)
+/* At least on aix-xlc-64, the compiler cries when it sees dynamic_cast. */
+            Q_ASSERT_X(atomicValue == 0 || dynamic_cast<const TCastTarget *>(atomicValue),
+                       Q_FUNC_INFO,
+                       "The cast is invalid. This class does not inherit the cast target.");
+#endif
+            return const_cast<TCastTarget *>(static_cast<const TCastTarget *>(atomicValue));
+        }
+
+        /**
+         * @short Returns the string value of this Item.
+         *
+         * In the case of a node, it is the node value corresponding to
+         * the particular node type. For atomic values, it is equivalent
+         * to the value cast as <tt>xs:string</tt>.
+         *
+         * Conceptually, this functions corresponds to the <tt>dm:string-value</tt> accessor.
+         *
+         * @see <a href="http://www.w3.org/TR/xpath-datamodel/#dm-string-value">XQuery 1.0 and
+         * XPath 2.0 Data Model, 5.13 string-value Accessor</a>
+         * @returns the string value.
+         */
+        inline QString stringValue() const
+        {
+            if(isAtomicValue())
+                return atomicValue->stringValue();
+            else
+                return asNode().stringValue();
+        }
+
+        /**
+         * @short Returns the typed value of this item.
+         *
+         * Conceptually, this functions corresponds to the <tt>dm:typed-value</tt> accessor. Here are
+         * examples of what the typed value of an Item is:
+         *
+         * - The typed value of an atomic value is always the atomic value itself.
+         * - A comment node has always a typed value of type @c xs:string
+         * - For attribute and element nodes, the typed value can be arbitrary. For example, an
+         *   element can have a sequence of @c xs:dateTime instances.
+         *
+         * @returns the typed value of this item
+         * @see <a href="http://www.w3.org/TR/xpath-datamodel/#dm-typed-value">XQuery 1.0 and
+         * XPath 2.0 Data Model, 5.15 typed-value Accessor</a>
+         */
+        Item::Iterator::Ptr sequencedTypedValue() const;
+
+        /**
+         * @short Determines whether this item is an atomic value, or a node.
+         *
+         * If this Item is @c null, @c false is returned.
+         *
+         * @see isNode()
+         * @returns @c true if it is an atomic value, otherwise @c false.
+         */
+        inline bool isAtomicValue() const
+        {
+            /* Setting node.model to ~0, signals that it's an atomic value. */
+            return node.model == reinterpret_cast<QAbstractXmlNodeModel *>(~0);
+        }
+
+        /**
+         * @short Determines whether this item is an atomic value, or a node.
+         *
+         * If this Item is @c null, false is returned.
+         *
+         * @see isAtomicValue()
+         * @returns @c true if this item is a node, otherwise @c false.
+         */
+        inline bool isNode() const
+        {
+            //return !isAtomicValue();
+            return node.model && node.model != reinterpret_cast<QAbstractXmlNodeModel *>(~0);
+        }
+
+        /**
+         * @short Returns the ItemType this Item is of.
+         *
+         * For example, if this Item is an XML node, more specifically a text node,
+         * <tt>text()</tt> is returned. That is, BuiltinTypes::text. However, if this
+         * Item is an atomic value of type <tt>xs:long</tt> that is what's returned,
+         * BuiltinTypes::xsLong.
+         *
+         * @returns the type of this Item.
+         */
+        inline QExplicitlySharedDataPointer<ItemType> type() const
+        {
+            if(isAtomicValue())
+                return atomicValue->type();
+            else
+                return asNode().type();
+        }
+
+        inline const AtomicValue *asAtomicValue() const
+        {
+            Q_ASSERT(isAtomicValue());
+            return atomicValue;
+        }
+
+        inline const QXmlNodeModelIndex &asNode() const
+        {
+            Q_ASSERT_X(isNode() || isNull(), Q_FUNC_INFO,
+                       "This item isn't a valid QXmlNodeModelIndex.");
+            Q_ASSERT_X(sizeof(QXmlNodeModelIndex) == sizeof(QPatternist::NodeIndexStorage), Q_FUNC_INFO,
+                       "If this doesn't hold, something is wrong.");
+
+            return reinterpret_cast<const QXmlNodeModelIndex &>(node);
+        }
+
+        inline operator bool() const
+        {
+            return node.model;
+        }
+
+        inline bool isNull() const
+        {
+            return !node.model;
+        }
+
+        inline void reset()
+        {
+            /* Note that this function should be equal to the default
+             * constructor. */
+            node.model = 0;
+            node.data = 0;
+        }
+
+        static inline Item fromPublic(const QXmlItem &i)
+        {
+            const Item it(i.m_node);
+            if(it.isAtomicValue())
+                it.asAtomicValue()->ref.ref();
+
+            return it;
+        }
+
+        static inline QXmlItem toPublic(const Item &i)
+        {
+            return QXmlItem(i);
+        }
+
+    private:
+        union
+        {
+            NodeIndexStorage node;
+            const AtomicValue *atomicValue;
+        };
+    };
+
+    template<typename T>
+    inline Item toItem(const QExplicitlySharedDataPointer<T> atomicValue)
+    {
+        return Item(atomicValue.data());
+    }
+
+    /**
+     * This is an overload, provided for convenience.
+     * @relates QXmlNodeModelIndex
+     */
+    static inline QString formatData(const QXmlNodeModelIndex node)
+    {
+        return node.stringValue(); // This can be improved a lot.
+    }
+}
+
+    inline QXmlName QXmlNodeModelIndex::name() const
+    {
+        return m_storage.model->name(*this);
+    }
+
+    inline QXmlNodeModelIndex QXmlNodeModelIndex::root() const
+    {
+        return m_storage.model->root(*this);
+    }
+
+    inline QXmlNodeModelIndex::Iterator::Ptr QXmlNodeModelIndex::iterate(const QXmlNodeModelIndex::Axis axis) const
+    {
+        return m_storage.model->iterate(*this, axis);
+    }
+
+    inline QUrl QXmlNodeModelIndex::documentUri() const
+    {
+        return m_storage.model->documentUri(*this);
+    }
+
+    inline QUrl QXmlNodeModelIndex::baseUri() const
+    {
+        return m_storage.model->baseUri(*this);
+    }
+
+    inline QXmlNodeModelIndex::NodeKind QXmlNodeModelIndex::kind() const
+    {
+        return m_storage.model->kind(*this);
+    }
+
+    inline bool QXmlNodeModelIndex::isDeepEqual(const QXmlNodeModelIndex &other) const
+    {
+        return m_storage.model->isDeepEqual(*this, other);
+    }
+
+    inline QXmlNodeModelIndex::DocumentOrder QXmlNodeModelIndex::compareOrder(const QXmlNodeModelIndex &other) const
+    {
+        Q_ASSERT_X(model() == other.model(), Q_FUNC_INFO, "The API docs guarantees the two nodes are from the same model");
+        return m_storage.model->compareOrder(*this, other);
+    }
+
+    inline bool QXmlNodeModelIndex::is(const QXmlNodeModelIndex &other) const
+    {
+        return m_storage.model == other.m_storage.model &&
+               m_storage.data == other.m_storage.data &&
+               m_storage.additionalData == other.m_storage.additionalData;
+    }
+
+    inline void QXmlNodeModelIndex::sendNamespaces(QAbstractXmlReceiver *const receiver) const
+    {
+        m_storage.model->sendNamespaces(*this, receiver);
+    }
+
+    inline QVector<QXmlName> QXmlNodeModelIndex::namespaceBindings() const
+    {
+        return m_storage.model->namespaceBindings(*this);
+    }
+
+    inline QXmlName::NamespaceCode QXmlNodeModelIndex::namespaceForPrefix(const QXmlName::PrefixCode prefix) const
+    {
+        return m_storage.model->namespaceForPrefix(*this, prefix);
+    }
+
+    inline QString QXmlNodeModelIndex::stringValue() const
+    {
+        return m_storage.model->stringValue(*this);
+    }
+
+    inline QPatternist::ItemType::Ptr QXmlNodeModelIndex::type() const
+    {
+        return m_storage.model->type(*this);
+    }
+
+    inline QExplicitlySharedDataPointer<QAbstractXmlForwardIterator<QPatternist::Item> > QXmlNodeModelIndex::sequencedTypedValue() const
+    {
+        return m_storage.model->sequencedTypedValue(*this);
+    }
+
+    inline QXmlItem::QXmlItem(const QPatternist::Item &i) : m_node(i.node)
+    {
+        if(isAtomicValue())
+            m_atomicValue->ref.ref();
+    }
+
+Q_DECLARE_TYPEINFO(QPatternist::Item::Iterator::Ptr, Q_MOVABLE_TYPE);
+Q_DECLARE_TYPEINFO(QPatternist::AtomicValue, Q_MOVABLE_TYPE);
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qnodebuilder.cpp b/src/xmlpatterns/data/qnodebuilder.cpp
new file mode 100644
index 0000000..2463a4d
--- /dev/null
+++ b/src/xmlpatterns/data/qnodebuilder.cpp
@@ -0,0 +1,48 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qnodebuilder_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qnodebuilder_p.h b/src/xmlpatterns/data/qnodebuilder_p.h
new file mode 100644
index 0000000..e311d63
--- /dev/null
+++ b/src/xmlpatterns/data/qnodebuilder_p.h
@@ -0,0 +1,111 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_NodeBuilder_H
+#define Patternist_NodeBuilder_H
+
+#include "qitem_p.h"
+#include "qabstractxmlreceiver.h"
+#include "qautoptr_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Receives QAbstractXmlReceiver events and builds a node tree
+     * in memory that afterwards can be retrieved via builtNode()
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class NodeBuilder : public QAbstractXmlReceiver
+    {
+    public:
+        typedef AutoPtr<NodeBuilder> Ptr;
+
+        inline NodeBuilder()
+        {
+        }
+
+        /**
+         * @short Returns the document that has been built.
+         *
+         * If this function is called before any events have been received, the result is undefined.
+         *
+         * The top node that was constructed can be retrieved by calling
+         * NodeModel::root() on the returned NodeModel.
+         *
+         * This function is not @c const, because some implementations delay
+         * the node construction until the node is needed. Also, text nodes are
+         * difficult, at best, to construct until one knows that all text content
+         * has been received(which a call to this function in a natural way
+         * signals).
+         */
+        virtual QAbstractXmlNodeModel::Ptr builtDocument() = 0;
+
+        /**
+         * @short Creates a copy of this NodeBuilder, that operates independently of
+         * this NodeBuilder.
+         *
+         * The caller owns the returned instance.
+         */
+        virtual NodeBuilder::Ptr create(const QUrl &baseURI) const = 0;
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qnodemodel.cpp b/src/xmlpatterns/data/qnodemodel.cpp
new file mode 100644
index 0000000..5d713c3
--- /dev/null
+++ b/src/xmlpatterns/data/qnodemodel.cpp
@@ -0,0 +1,52 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 <QUrl>
+
+#include "qnamespaceresolver_p.h"
+
+#include "qitem_p.h"
+
+QT_BEGIN_NAMESPACE
+
+
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qqnamevalue.cpp b/src/xmlpatterns/data/qqnamevalue.cpp
new file mode 100644
index 0000000..72ab6eb
--- /dev/null
+++ b/src/xmlpatterns/data/qqnamevalue.cpp
@@ -0,0 +1,75 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qanyuri_p.h"
+#include "qbuiltintypes_p.h"
+#include "qxpathhelper_p.h"
+
+#include "qqnamevalue_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+QNameValue::QNameValue(const NamePool::Ptr &np, const QXmlName name) : m_qName(name)
+                                                                     , m_namePool(np)
+{
+    Q_ASSERT(!name.isNull());
+    Q_ASSERT(m_namePool);
+}
+
+QNameValue::Ptr QNameValue::fromValue(const NamePool::Ptr &np, const QXmlName name)
+{
+    Q_ASSERT(!name.isNull());
+    return QNameValue::Ptr(new QNameValue(np, name));
+}
+
+QString QNameValue::stringValue() const
+{
+    return m_namePool->toLexical(m_qName);
+}
+
+ItemType::Ptr QNameValue::type() const
+{
+    return BuiltinTypes::xsQName;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qqnamevalue_p.h b/src/xmlpatterns/data/qqnamevalue_p.h
new file mode 100644
index 0000000..93edbc7
--- /dev/null
+++ b/src/xmlpatterns/data/qqnamevalue_p.h
@@ -0,0 +1,113 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_QNameValue_H
+#define Patternist_QNameValue_H
+
+#include "qitem_p.h"
+#include "qxmlname.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Implements the value instance of the @c xs:QName type.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     * @see QNameConstructor::expandQName()
+     * @see XPathHelper::isQName()
+     * @see QXmlUtils
+     */
+    class QNameValue : public AtomicValue
+    {
+    public:
+        friend class CommonValues;
+        friend class QNameComparator;
+
+        typedef QExplicitlySharedDataPointer<QNameValue> Ptr;
+
+        /**
+         * Constructs a QNameValue that represents @p name.
+         *
+         * @param name the QName. May not be @c null.
+         * @param np the NamePool.
+         * @see QNameConstructor::expandQName()
+         * @see XPathHelper::isQName()
+         * @see QXmlUtils
+         */
+        static QNameValue::Ptr fromValue(const NamePool::Ptr &np, const QXmlName name);
+
+        virtual QString stringValue() const;
+
+        virtual ItemType::Ptr type() const;
+
+        inline QXmlName qName() const
+        {
+            return m_qName;
+        }
+
+    private:
+        QNameValue(const NamePool::Ptr &np, const QXmlName name);
+
+        const QXmlName         m_qName;
+        const NamePool::Ptr m_namePool;
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qresourceloader.cpp b/src/xmlpatterns/data/qresourceloader.cpp
new file mode 100644
index 0000000..c727253
--- /dev/null
+++ b/src/xmlpatterns/data/qresourceloader.cpp
@@ -0,0 +1,134 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 <QUrl>
+
+
+#include "qresourceloader_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+ResourceLoader::~ResourceLoader()
+{
+}
+
+bool ResourceLoader::isUnparsedTextAvailable(const QUrl &uri,
+                                             const QString &encoding)
+{
+    Q_ASSERT(uri.isValid());
+    Q_ASSERT(!uri.isRelative());
+    Q_UNUSED(uri); /* Needed when compiling in release mode. */
+    Q_UNUSED(encoding);
+    return false;
+}
+
+ItemType::Ptr ResourceLoader::announceUnparsedText(const QUrl &uri)
+{
+    Q_ASSERT(uri.isValid());
+    Q_ASSERT(!uri.isRelative());
+    Q_UNUSED(uri); /* Needed when compiling in release mode. */
+    return ItemType::Ptr();
+}
+
+Item ResourceLoader::openUnparsedText(const QUrl &uri,
+                                      const QString &encoding,
+                                      const ReportContext::Ptr &context,
+                                      const SourceLocationReflection *const where)
+{
+    Q_ASSERT(uri.isValid());
+    Q_ASSERT(!uri.isRelative());
+    Q_UNUSED(uri); /* Needed when compiling in release mode. */
+    Q_UNUSED(encoding);
+    Q_UNUSED(context);
+    Q_UNUSED(where);
+    return Item();
+}
+
+Item ResourceLoader::openDocument(const QUrl &uri,
+                                  const ReportContext::Ptr &context)
+{
+    Q_ASSERT(uri.isValid());
+    Q_ASSERT(!uri.isRelative());
+    Q_UNUSED(uri); /* Needed when compiling in release mode. */
+    Q_UNUSED(context); /* Needed when compiling in release mode. */
+    return Item();
+}
+
+SequenceType::Ptr ResourceLoader::announceDocument(const QUrl &uri, const Usage)
+{
+    Q_ASSERT(uri.isValid());
+    Q_ASSERT(!uri.isRelative());
+    Q_UNUSED(uri); /* Needed when compiling in release mode. */
+    return SequenceType::Ptr();
+}
+
+bool ResourceLoader::isDocumentAvailable(const QUrl &uri)
+{
+    Q_ASSERT(uri.isValid());
+    Q_ASSERT(!uri.isRelative());
+    Q_UNUSED(uri); /* Needed when compiling in release mode. */
+    return false;
+}
+
+Item::Iterator::Ptr ResourceLoader::openCollection(const QUrl &uri)
+{
+    Q_ASSERT(uri.isValid());
+    Q_ASSERT(!uri.isRelative());
+    Q_UNUSED(uri); /* Needed when compiling in release mode. */
+    return Item::Iterator::Ptr();
+}
+
+SequenceType::Ptr ResourceLoader::announceCollection(const QUrl &uri)
+{
+    Q_ASSERT(uri.isValid());
+    Q_ASSERT(!uri.isRelative());
+    Q_UNUSED(uri); /* Needed when compiling in release mode. */
+    return SequenceType::Ptr();
+}
+
+void ResourceLoader::clear(const QUrl &uri)
+{
+    Q_UNUSED(uri);
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qresourceloader_p.h b/src/xmlpatterns/data/qresourceloader_p.h
new file mode 100644
index 0000000..4ed4342
--- /dev/null
+++ b/src/xmlpatterns/data/qresourceloader_p.h
@@ -0,0 +1,320 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_ResourceLoader_H
+#define Patternist_ResourceLoader_H
+
+#include "qitem_p.h"
+#include "qreportcontext_p.h"
+#include "qsequencetype_p.h"
+#include "qsourcelocationreflection_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QUrl;
+
+namespace QPatternist
+{
+    /**
+     * @short Responsible for handling requests for opening files and node collections.
+     *
+     * ResourceLoader is a callback used for opening files, requested
+     * via the functions <tt>fn:document()</tt> and <tt>fn:unparsed-text()</tt>;
+     * and node collections, requested via <tt>fn:collection()</tt>. Patternist uses the
+     * ResourceLoader at compile time,
+     * via StaticContext::resourceLoader(), and at runtime, via DynamicContext::resourceLoader().
+     *
+     * The ResourceLoader takes care of loading "external resources" in a way specific to the data
+     * model Patternist is using. For example, perhaps the opening of documents should pass
+     * a security policy, or a collection should map to nodes in a virtual filesystem or a database.
+     *
+     * From Patternist's perspective, the ResourceLoader provides two things:
+     *
+     * - At compile time, it calls announceDocument(), announceCollection() and announceUnparsedText()
+     *   if it knows the URIs at compile time in order to retrieve the static types of the data the URIs
+     *   maps to. This is used for more efficiently compiling the query and to better report errors
+     *   at compile time.
+     * - To open document and node collections at runtime.
+     *
+     * From the user's or the data model's perspective, the ResourceLoader most notably provides
+     * a hint to what resources a query will load at runtime, and therefore provides an opportunity
+     * to prepare in advance for that. For example, between the compile and runtime stage,
+     * the ResourceLoader sub-class can be asked to pre-load documents in an asynchronous
+     * and simultaneous way, such that the runtime stage is faster and doesn't
+     * freeze a graphical interface.
+     *
+     * The announce functions are not guaranteed to be called. The loading functions can be called
+     * with an URI that an announce function hasn't been called with.
+     *
+     * The default implementations of ResourceLoader's virtual functions all signals that no
+     * resources can be loaded. This means ResourceLoader must be sub-classed, in order to
+     * be able to load resources.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class Q_AUTOTEST_EXPORT ResourceLoader : public QSharedData
+    {
+    public:
+        enum Usage
+        {
+            /**
+             * Communicates that the URI may be used during query evaluation.
+             * For example, zero times or very many times.
+             *
+             * Typically this hint is given when the URI is available at
+             * compile-time, but it is used inside a conditional statement
+             * whose branching cannot be determined at compile time.
+             */
+            MayUse,
+
+            /**
+             * Communicates that the URI will always be used at query
+             * evaluation.
+             */
+            WillUse
+        };
+
+        typedef QExplicitlySharedDataPointer<ResourceLoader> Ptr;
+        inline ResourceLoader() {}
+        virtual ~ResourceLoader();
+
+        /**
+         * @short Calls to this function are generated by calls to the
+         * <tt>fn:unparsed-text-available()</tt> function.
+         *
+         * @param uri A URI identifying the resource to retrieve. The URI is guaranteed
+         * to be valid(QUrl::isValid() returns @c true) and to be absolute(QUrl::isRelative()
+         * returns @c false).
+         * @returns @c true if calling openUnparsedText() while passing @p uri will successfully load
+         * the document.
+         * @see <a href="http://www.w3.org/TR/xslt20/#unparsed-text">XSL Transformations
+         * (XSLT) Version 2.0, 16.2 Reading Text Files</a>
+         */
+        virtual bool isUnparsedTextAvailable(const QUrl &uri,
+                                             const QString &encoding);
+
+        /**
+         * @short May be called by the compilation framework at compile time to report that an
+         * unparsed text(plain text) file referenced by @p uri will be loaded at runtime.
+         *
+         * This function can be called an arbitrary amount of times for the same URI. How many times
+         * it is called for a URI has no meaning(beyond the first call, that is). For what queries
+         * the compilation framework can determine what always will be loaded is generally undefined. It
+         * depends on factors such as how simple the query is what information that is statically
+         * available and subsequently what optimizations that can apply.
+         *
+         * Calls to this function are generated by calls to the <tt>fn:unparsed-text()</tt> function.
+         *
+         * @param uri A URI identifying the resource to retrieve. The URI is guaranteed
+         * to be valid(QUrl::isValid() returns @c true) and to be absolute(QUrl::isRelative()
+         * returns @c false).
+         * @see <a href="http://www.w3.org/TR/xslt20/#unparsed-text">XSL Transformations
+         * (XSLT) Version 2.0, 16.2 Reading Text Files</a>
+         * @returns
+         * - @c null if no unparsed file can be loaded for @p uri
+         * - The item type that the value loaded by @p uri will be an instance of. This is
+         *   typically @c xs:string
+         */
+        virtual ItemType::Ptr announceUnparsedText(const QUrl &uri);
+
+        /**
+         * @short Calls to this function are generated by calls to the <tt>fn:unparsed-text()</tt> function.
+         *
+         * @param uri A URI identifying the resource to retrieve. The URI is guaranteed
+         * to be valid(QUrl::isValid() returns @c true) and to be absolute(QUrl::isRelative()
+         * returns @c false).
+         * @param encoding the encoding to use. If empty, the user hasn't
+         * expressed any encoding to use.
+         * @see <a href="http://www.w3.org/TR/xslt20/#unparsed-text">XSL Transformations
+         * (XSLT) Version 2.0, 16.2 Reading Text Files</a>
+         * @returns
+         * - @c null if no unparsed file can be loaded for @p uri
+         * - An @c xs:string value(or subtype) containing the content of the file identified
+         *   by @p uri as text. Remember that its type must  match the sequence type
+         *   returned by announceUnparsedText()
+         */
+        virtual Item openUnparsedText(const QUrl &uri,
+                                      const QString &encoding,
+                                      const ReportContext::Ptr &context,
+                                      const SourceLocationReflection *const where);
+
+        /**
+         * @short Calls to this function are generated by calls to the <tt>fn:document()</tt>
+         * or <tt>fn:doc()</tt> function.
+         *
+         * @note This function is responsible for execution stability. Subsequent calls
+         * to this function with the same URI should result in QXmlNodeModelIndex instances that have
+         * the same identity. However, in some cases this stability is not of interest, see
+         * the specification for details.
+         * @param uri A URI identifying the resource to retrieve. The URI is guaranteed
+         * to be valid(QUrl::isValid() returns @c true) and to be absolute(QUrl::isRelative()
+         * returns @c false).
+         * @see QXmlNodeModelIndex::identity()
+         * @see <a href="http://www.w3.org/TR/xpath-functions/#func-doc">XQuery 1.0
+         * and XPath 2.0 Functions and Operators, 15.5.4 fn:doc</a>
+         * @see <a href="http://www.w3.org/TR/xslt20/#document">XSL Transformations
+         * (XSLT) Version 2.0, 16.1 Multiple Source Documents</a>
+         * @returns
+         * - @c null if no document can be loaded for @p uri
+         * - A QXmlNodeModelIndex representing the document identified by @p uri. Remember that the QXmlNodeModelIndex
+         *   must match the sequence type returned by announceDocument()
+         */
+        virtual Item openDocument(const QUrl &uri,
+                                  const ReportContext::Ptr &context);
+
+        /**
+         * @short May be called by the compilation framework at compile time to report that an
+         * XML document referenced by @p uri will be loaded at runtime.
+         *
+         * This function can be called an arbitrary amount of times for the same URI, but different
+         * @p usageHint values. How many times it is called for a URI has no meaning(beyond the first call,
+         * that is). For what queries the compilation framework can determine what always will be
+         * loaded is generally undefined. It
+         * depends on factors such as the complexity of the query, what information that is statically
+         * available and subsequently what optimizations that can be applied.
+         *
+         * Calls to this function are generated by calls to the <tt>fn:document()</tt>
+         * or <tt>fn:doc()</tt> function.
+         *
+         * @param uri A URI identifying the resource to retrieve. The URI is guaranteed
+         * to be valid(QUrl::isValid() returns @c true) and to be absolute(QUrl::isRelative()
+         * returns @c false).
+         * @param usageHint A hint to how the URI will be used.
+         * @returns
+         *  - @c null if the ResourceLoader can determine at this stage that no document
+         *  referenced by @p uri will ever be possible to load.
+         *  - The appropriate sequence type if loading @p uri succeeds at runtime. This must be
+         *  CommonSequenceTypes::zeroOrOneDocument, CommonSequenceTypes::exactlyOneDocument or
+         *  a sequence type that is a sub type of it.
+         * @see <a href="http://www.w3.org/TR/xpath-functions/#func-doc">XQuery 1.0
+         * and XPath 2.0 Functions and Operators, 15.5.4 fn:doc</a>
+         * @see <a href="http://www.w3.org/TR/xslt20/#document">XSL Transformations
+         * (XSLT) Version 2.0, 16.1 Multiple Source Documents</a>
+         */
+        virtual SequenceType::Ptr announceDocument(const QUrl &uri, const Usage usageHint);
+
+        /**
+         * @short Calls to this function are generated by calls to the <tt>fn:doc-available()</tt> function.
+         *
+         * @param uri A URI identifying the resource to retrieve. The URI is guaranteed
+         * to be valid(QUrl::isValid() returns @c true) and to be absolute(QUrl::isRelative()
+         * returns @c false).
+         * @returns @c true if calling openDocument() while passing @p uri will successfully load
+         * the document.
+         * @see <a href="http://www.w3.org/TR/xpath-functions/#func-doc-available">XQuery 1.0
+         * and XPath 2.0 Functions and Operators, 15.5.5 fn:doc-available</a>
+         * @see <a href="http://www.w3.org/TR/xslt20/#document">XSL Transformations
+         * (XSLT) Version 2.0, 16.1 Multiple Source Documents</a>
+         */
+        virtual bool isDocumentAvailable(const QUrl &uri);
+
+        /**
+         * @short Calls to this function are generated by calls to the <tt>fn:collection()</tt> function.
+         *
+         * @param uri A URI identifying the resource to retrieve. The URI is guaranteed
+         * to be valid(QUrl::isValid() returns @c true) and to be absolute(QUrl::isRelative()
+         * returns @c false).
+         * @see <a href="http://www.w3.org/TR/xpath-functions/#func-collection">XQuery 1.0
+         * and XPath 2.0 Functions and Operators, 15.5.6 fn:collection</a>
+         * @returns
+         * - @c null if no node collection can be loaded for @p uri
+         * - An QAbstractXmlForwardIterator representing the content identified by @p uri. Remember that the content
+         *   of the QAbstractXmlForwardIterator must match the sequence type returned by announceCollection()
+         */
+        virtual Item::Iterator::Ptr openCollection(const QUrl &uri);
+
+        /**
+         * @short May be called by the compilation framework at compile time to report that an
+         * node collection referenced by @p uri will be loaded at runtime.
+         *
+         * This function can be called an arbitrary amount of times for the same URI. How many times
+         * it is called for a URI has no meaning(beyond the first call, that is). For what queries
+         * the compilation framework can determine what always will be loaded is generally undefined. It
+         * depends on factors such as how simple the query is what information that is statically
+         * available and subsequently what optimizations that can apply.
+         *
+         * Calls to this function are generated by calls to the <tt>fn:collection()</tt> function.
+         *
+         * @note This function is responsible for execution stability. Subsequent calls
+         * to this function with the same URI should result in QXmlNodeModelIndex instances that have
+         * the same identity. However, in some cases this stability is not of interest, see
+         * the specification for details.
+         * @param uri A URI identifying the resource to retrieve. The URI is guaranteed
+         * to be valid(QUrl::isValid() returns @c true) and to be absolute(QUrl::isRelative()
+         * returns @c false).
+         * @returns
+         *  - @c null if the ResourceLoader can determine at this stage that no document
+         *  referenced by @p uri will ever be possible to load.
+         *  - The appropriate sequence type if loading @p uri succeeds at runtime. This must be
+         *  CommonSequenceTypes::zeroOrMoreNodes or a sequence type that is a sub type of it.
+         * @see <a href="http://www.w3.org/TR/xpath-functions/#func-collection">XQuery 1.0
+         * and XPath 2.0 Functions and Operators, 15.5.6 fn:collection</a>
+         */
+        virtual SequenceType::Ptr announceCollection(const QUrl &uri);
+
+        /**
+         * @short Asks to unload @p uri from its document pool, such that a
+         * subsequent request will require a new read.
+         *
+         * The default implementation does nothing.
+         */
+        virtual void clear(const QUrl &uri);
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qschemadatetime.cpp b/src/xmlpatterns/data/qschemadatetime.cpp
new file mode 100644
index 0000000..b91f5f1
--- /dev/null
+++ b/src/xmlpatterns/data/qschemadatetime.cpp
@@ -0,0 +1,117 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qbuiltintypes_p.h"
+#include "qitem_p.h"
+
+#include "qschemadatetime_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+DateTime::DateTime(const QDateTime &dateTime) : AbstractDateTime(dateTime)
+{
+}
+
+DateTime::Ptr DateTime::fromLexical(const QString &lexical)
+{
+    static const CaptureTable captureTable( // STATIC DATA
+        /* The extra paranthesis is a build fix for GCC 3.3. */
+        (QRegExp(QLatin1String(
+                "^\\s*"                                     /* Any preceding whitespace. */
+                "(-?)"                                      /* Any preceding minus. */
+                "(\\d{4,})"                                 /* The year part. */
+                "-"                                         /* Delimiter. */
+                "(\\d{2})"                                  /* The month part. */
+                "-"                                         /* Delimiter. */
+                "(\\d{2})"                                  /* The day part. */
+                "T"                                         /* Delimiter. */
+                "(\\d{2})"                                  /* Hour part */
+                ":"                                         /* Delimiter. */
+                "(\\d{2})"                                  /* Minutes part */
+                ":"                                         /* Delimiter. */
+                "(\\d{2,})"                                 /* Seconds part. */
+                "(?:\\.(\\d+))?"                            /* Milli seconds part. */
+                "(?:(\\+|-)(\\d{2}):(\\d{2})|(Z))?"         /* The zone offset, "+08:24". */
+                "\\s*$"                                     /* Any whitespace at the end. */))),
+        /*zoneOffsetSignP*/         9,
+        /*zoneOffsetHourP*/         10,
+        /*zoneOffsetMinuteP*/       11,
+        /*zoneOffsetUTCSymbolP*/    12,
+        /*yearP*/                   2,
+        /*monthP*/                  3,
+        /*dayP*/                    4,
+        /*hourP*/                   5,
+        /*minutesP*/                6,
+        /*secondsP*/                7,
+        /*msecondsP*/               8,
+        /*yearSignP*/               1);
+
+    AtomicValue::Ptr err;
+    const QDateTime retval(create(err, lexical, captureTable));
+
+    return err ? err : DateTime::Ptr(new DateTime(retval));
+}
+
+DateTime::Ptr DateTime::fromDateTime(const QDateTime &dt)
+{
+    Q_ASSERT(dt.isValid());
+    return DateTime::Ptr(new DateTime(dt));
+}
+
+Item DateTime::fromValue(const QDateTime &dt) const
+{
+    Q_ASSERT(dt.isValid());
+    return fromDateTime(dt);
+}
+
+QString DateTime::stringValue() const
+{
+    return dateToString() + QLatin1Char('T') + timeToString() + zoneOffsetToString();
+}
+
+ItemType::Ptr DateTime::type() const
+{
+    return BuiltinTypes::xsDateTime;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qschemadatetime_p.h b/src/xmlpatterns/data/qschemadatetime_p.h
new file mode 100644
index 0000000..a92b27b
--- /dev/null
+++ b/src/xmlpatterns/data/qschemadatetime_p.h
@@ -0,0 +1,101 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_DateTime_H
+#define Patternist_DateTime_H
+
+#include "qabstractdatetime_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+/**
+ * @file
+ * @short Contains class DateTime. This file was originally called qdatetime_p.h,
+ * but various build systems cannot handle that that name happens to be
+ * identical to another one, the one in QtCore.
+ */
+
+namespace QPatternist
+{
+    /**
+     * @short Implements the value instance of the @c xs:dateTime type.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class DateTime : public AbstractDateTime
+    {
+    public:
+        typedef AtomicValue::Ptr Ptr;
+
+        /**
+         * Creates an instance from the lexical representation @p string.
+         */
+        static DateTime::Ptr fromLexical(const QString &string);
+        static DateTime::Ptr fromDateTime(const QDateTime &dt);
+        virtual ItemType::Ptr type() const;
+        virtual QString stringValue() const;
+        virtual Item fromValue(const QDateTime &dt) const;
+
+    protected:
+        friend class CommonValues;
+
+        DateTime(const QDateTime &dateTime);
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qschemanumeric.cpp b/src/xmlpatterns/data/qschemanumeric.cpp
new file mode 100644
index 0000000..f5cc323
--- /dev/null
+++ b/src/xmlpatterns/data/qschemanumeric.cpp
@@ -0,0 +1,91 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 <math.h>
+
+#include "qabstractfloat_p.h"
+#include "qboolean_p.h"
+#include "qbuiltintypes_p.h"
+#include "qcommonvalues_p.h"
+#include "qdecimal_p.h"
+#include "qinteger_p.h"
+
+#include "qschemanumeric_p.h"
+
+/**
+ * @file Contains class Numeric. This file was originally called qnumeric.cpp,
+ * but was renamed to stay consistent with qschemanumeric_p.h
+ */
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+AtomicValue::Ptr Numeric::fromLexical(const QString &number)
+{
+    Q_ASSERT(!number.isEmpty());
+    Q_ASSERT_X(!number.contains(QLatin1Char('e')) &&
+               !number.contains(QLatin1Char('E')),
+               Q_FUNC_INFO, "Should not contain any e/E");
+
+    if(number.contains(QLatin1Char('.'))) /* an xs:decimal. */
+        return Decimal::fromLexical(number);
+    else /* It's an integer, of some sort. E.g, -3, -2, -1, 0, 1, 2, 3 */
+        return Integer::fromLexical(number);
+}
+
+xsDouble Numeric::roundFloat(const xsDouble val)
+{
+    if(qIsInf(val) || AbstractFloat<true>::isEqual(val, 0.0))
+        return val;
+    else if(qIsNaN(val))
+        return val;
+    else
+    {
+        if(val >= -0.5 && val < 0)
+            return -0.0;
+        else
+            return ::floor(val + 0.5);
+
+    }
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qschemanumeric_p.h b/src/xmlpatterns/data/qschemanumeric_p.h
new file mode 100644
index 0000000..792eb58
--- /dev/null
+++ b/src/xmlpatterns/data/qschemanumeric_p.h
@@ -0,0 +1,235 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_Numeric_H
+#define Patternist_Numeric_H
+
+#include "qitem_p.h"
+#include "qprimitives_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+/**
+ * @file
+ * @short Contains class Numeric. This file was originally called qnumeric_p.h,
+ * but various build systems cannot handle that that name happens to be
+ * identical to another one, the one in QtCore.
+ */
+
+namespace QPatternist
+{
+    /**
+     * @short Base class for all numeric values.
+     *
+     * @section creation Creating Instances
+     *
+     * @todo
+     * - Depending on what type of val
+     * - Numeric::createFromString
+     * - Various classes has ::Zero(), ::PosINF(), ::NaN(), NegINF()
+     * - Never use constructor, use createFromNative, or createFromString.
+     *
+     * @see <a href="http://www.w3.org/TR/xquery-operators/#numeric-functions">XQuery 1.0
+     * and XPath 2.0 Functions and Operators, 6 Functions and Operators on Numerics</a>
+     * @see <a href="http://www.w3.org/TR/xquery-operators/#func-overloading">XQuery 1.0
+     * and XPath 2.0 Functions and Operators, 1.2 Function Overloading</a>
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     * @todo discuss data hierarchy the non existatnt number data type
+     */
+    class Numeric : public AtomicValue
+    {
+    public:
+
+        typedef QExplicitlySharedDataPointer<Numeric> Ptr;
+
+        /**
+         * Creates a Numeric sub-class that is appropriate for @p number.
+         *
+         * @note usages of e/E is not handled; Double::fromLexical should
+         * be used in that case. There is no function similar to fromLexical that also
+         * takes double values into account(because that distinction is done in the scanner).
+         *
+         * Currently used in the parser to create appropriate expressions.
+         */
+        static AtomicValue::Ptr fromLexical(const QString &number);
+
+        /**
+         * @returns the particular number's value as a native representation of
+         * the type xs:double. This can be considered that the value is cast to
+         * xs:double.
+         */
+        virtual xsDouble toDouble() const = 0;
+
+        /**
+         * @returns the particular number's value as a native representation of
+         * the type xs:integer. This can be considered that the value is cast to
+         * xs:integer.
+         */
+        virtual xsInteger toInteger() const = 0;
+
+        /**
+         * @returns the number as an unsigned integer. If the value is not
+         * unsigned, the code asserts and behavior is undefined.
+         */
+        virtual qulonglong toUnsignedInteger() const = 0;
+
+        /**
+         * @returns the particular number's value as a native representation of
+         * the type xs:float. This can be considered that the value is cast to
+         * xs:float.
+         */
+        virtual xsFloat toFloat() const = 0;
+
+        /**
+         * @returns the particular number's value as a native representation of
+         * the type xs:decimal. This can be considered that the value is cast to
+         * xs:decimal.
+         */
+        virtual xsFloat toDecimal() const = 0;
+
+        /**
+         * Performs the algorithm specified for the function fn:round on this Numeric,
+         * and whose result is returned.
+         *
+         * @see <a href="http://www.w3.org/TR/xpath-functions/#func-round">XQuery 1.0
+         * and XPath 2.0 Functions and Operators, 6.4.4 fn:round</a>
+         */
+        virtual Numeric::Ptr round() const = 0;
+
+        /**
+         * Performs rounding as defined for the fn:round-half-to-even  on this Numeric,
+         * and whose result is returned.
+         *
+         * @see <a href="http://www.w3.org/TR/xpath-functions/#func-round-half-to-even">XQuery 1.0
+         * and XPath 2.0 Functions and Operators, 6.4.5 fn:round-half-to-even</a>
+         */
+        virtual Numeric::Ptr roundHalfToEven(const xsInteger scale) const = 0;
+
+        /**
+         * Performs the algorithm specified for the function fn:floor on this Numeric,
+         * and whose result is returned.
+         *
+         * @see <a href="http://www.w3.org/TR/xpath-functions/#func-floor">XQuery 1.0
+         * and XPath 2.0 Functions and Operators, 6.4.3 fn:floor</a>
+         */
+        virtual Numeric::Ptr floor() const = 0;
+
+        /**
+         * Performs the algorithm specified for the function fn:ceiling on this Numeric,
+         * and whose result is returned.
+         *
+         * @see <a href="http://www.w3.org/TR/xpath-functions/#func-ceiling">XQuery 1.0
+         * and XPath 2.0 Functions and Operators, 6.4.2 fn:ceiling</a>
+         */
+        virtual Numeric::Ptr ceiling() const = 0;
+
+        /**
+         * Performs the algorithm specified for the function fn:abs on this Numeric,
+         * and whose result is returned.
+         *
+         * @see <a href="http://www.w3.org/TR/xpath-functions/#func-ceiling">XQuery 1.0
+         * and XPath 2.0 Functions and Operators, 6.4.1 fn:abs</a>
+         */
+        virtual Numeric::Ptr abs() const = 0;
+
+        /**
+         * Determines whether this Numeric is not-a-number, @c NaN. For numeric types
+         * that cannot represent @c NaN, this function should return @c false.
+         *
+         * @returns @c true if this Numeric is @c NaN
+         */
+        virtual bool isNaN() const = 0;
+
+        /**
+         * Determines whether this Numeric is an infinite number. Signedness
+         * is irrelevant, -INF as well as INF is considered infinity.
+         *
+         * For numeric types that cannot represent infinity, such as xs:integer
+         * , this function should return @c false.
+         *
+         * @returns @c true if this Numeric is an infinite number
+         */
+        virtual bool isInf() const = 0;
+
+        /**
+         * Unary minus.
+         */
+        virtual Item toNegated() const = 0;
+
+        /**
+         * @short Returns @c true if this value is signed. If @c false is
+         * returned, the value is unsigned.
+         *
+         * For float and decimal values, @c xs:double, @c xs:float and @c
+         * xs:decimal, the code asserts and behavior is undefined.
+         */
+        virtual bool isSigned() const = 0;
+
+    protected:
+        /**
+         * @short Implements @c fn:round() for types implemented with floating
+         * point.
+         *
+         * MS Windows and at least IRIX does not have C99's nearbyint() function(see the man
+         * page), so we reinvent it.
+         */
+        static xsDouble roundFloat(const xsDouble val);
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qschematime.cpp b/src/xmlpatterns/data/qschematime.cpp
new file mode 100644
index 0000000..dc382d8
--- /dev/null
+++ b/src/xmlpatterns/data/qschematime.cpp
@@ -0,0 +1,121 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qbuiltintypes_p.h"
+#include "qitem_p.h"
+
+#include "qschematime_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+SchemaTime::SchemaTime(const QDateTime &dateTime) : AbstractDateTime(dateTime)
+{
+}
+
+SchemaTime::Ptr SchemaTime::fromLexical(const QString &lexical)
+{
+    static const CaptureTable captureTable( // STATIC DATA
+        /* The extra paranthesis is a build fix for GCC 3.3. */
+        (QRegExp(QLatin1String(
+                "^\\s*"                             /* Any preceding whitespace. */
+                "(\\d{2})"                          /* Hour part */
+                ":"                                 /* Delimiter. */
+                "(\\d{2})"                          /* Minutes part */
+                ":"                                 /* Delimiter. */
+                "(\\d{2,})"                         /* Seconds part. */
+                "(?:\\.(\\d+))?"                    /* Milli seconds part. */
+                "(?:(\\+|-)(\\d{2}):(\\d{2})|(Z))?" /* The zone offset, "+08:24". */
+                "\\s*$"                             /* Any terminating whitespace. */))),
+        /*zoneOffsetSignP*/         5,
+        /*zoneOffsetHourP*/         6,
+        /*zoneOffsetMinuteP*/       7,
+        /*zoneOffsetUTCSymbolP*/    8,
+        /*yearP*/                   -1,
+        /*monthP*/                  -1,
+        /*dayP*/                    -1,
+        /*hourP*/                   1,
+        /*minutesP*/                2,
+        /*secondsP*/                3,
+        /*msecondsP*/               4);
+
+    AtomicValue::Ptr err;
+    const QDateTime retval(create(err, lexical, captureTable));
+
+    return err ? err : SchemaTime::Ptr(new SchemaTime(retval));
+}
+
+SchemaTime::Ptr SchemaTime::fromDateTime(const QDateTime &dt)
+{
+    Q_ASSERT(dt.isValid());
+    /* Singleton value, allocated once instead of each time it's needed. */
+    // STATIC DATA
+    static const QDate time_defaultDate(AbstractDateTime::DefaultYear,
+                                        AbstractDateTime::DefaultMonth,
+                                        AbstractDateTime::DefaultDay);
+
+    QDateTime result;
+    copyTimeSpec(dt, result);
+
+    result.setDate(time_defaultDate);
+    result.setTime(dt.time());
+
+    return SchemaTime::Ptr(new SchemaTime(result));
+}
+
+Item SchemaTime::fromValue(const QDateTime &dt) const
+{
+    Q_ASSERT(dt.isValid());
+    return fromDateTime(dt);
+}
+
+QString SchemaTime::stringValue() const
+{
+    return timeToString() + zoneOffsetToString();
+}
+
+ItemType::Ptr SchemaTime::type() const
+{
+    return BuiltinTypes::xsTime;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qschematime_p.h b/src/xmlpatterns/data/qschematime_p.h
new file mode 100644
index 0000000..1d89bc5
--- /dev/null
+++ b/src/xmlpatterns/data/qschematime_p.h
@@ -0,0 +1,98 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_Time_H
+#define Patternist_Time_H
+
+#include "qabstractdatetime_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Implements the value instance of the @c xs:time type.
+     *
+     * The header file for this class was originally called Time.h, but this
+     * clashed with a system header on MinGW.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class SchemaTime : public AbstractDateTime
+    {
+    public:
+        typedef AtomicValue::Ptr Ptr;
+
+        /**
+         * Creates an instance from the lexical representation @p string.
+         */
+        static SchemaTime::Ptr fromLexical(const QString &string);
+        static SchemaTime::Ptr fromDateTime(const QDateTime &dt);
+
+        virtual ItemType::Ptr type() const;
+        virtual QString stringValue() const;
+        virtual Item fromValue(const QDateTime &dt) const;
+
+    protected:
+        friend class CommonValues;
+
+        SchemaTime(const QDateTime &dateTime);
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qsequencereceiver.cpp b/src/xmlpatterns/data/qsequencereceiver.cpp
new file mode 100644
index 0000000..212c514
--- /dev/null
+++ b/src/xmlpatterns/data/qsequencereceiver.cpp
@@ -0,0 +1,126 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qitem_p.h"
+
+#include "qabstractxmlreceiver.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+QAbstractXmlReceiver::~QAbstractXmlReceiver()
+{
+}
+
+template<const QXmlNodeModelIndex::Axis axis>
+void QAbstractXmlReceiver::sendFromAxis(const QXmlNodeModelIndex &node)
+{
+    Q_ASSERT(!node.isNull());
+    const QXmlNodeModelIndex::Iterator::Ptr it(node.iterate(axis));
+    QXmlNodeModelIndex next(it->next());
+
+    while(!next.isNull())
+    {
+        sendAsNode(next);
+        next = it->next();
+    }
+}
+
+void QAbstractXmlReceiver::sendAsNode(const Item &outputItem)
+{
+    Q_ASSERT(outputItem);
+    Q_ASSERT(outputItem.isNode());
+    const QXmlNodeModelIndex asNode = outputItem.asNode();
+
+    switch(asNode.kind())
+    {
+        case QXmlNodeModelIndex::Attribute:
+        {
+            attribute(asNode.name(), outputItem.stringValue());
+            break;
+        }
+        case QXmlNodeModelIndex::Element:
+        {
+            startElement(asNode.name());
+
+            /* First the namespaces, then attributes, then the children. */
+            asNode.sendNamespaces(Ptr(const_cast<QAbstractXmlReceiver *>(this)));
+            sendFromAxis<QXmlNodeModelIndex::AxisAttribute>(asNode);
+            sendFromAxis<QXmlNodeModelIndex::AxisChild>(asNode);
+
+            endElement();
+
+            break;
+        }
+        case QXmlNodeModelIndex::Text:
+        {
+            characters(outputItem.stringValue());
+            break;
+        }
+        case QXmlNodeModelIndex::ProcessingInstruction:
+        {
+            processingInstruction(asNode.name(), outputItem.stringValue());
+            break;
+        }
+        case QXmlNodeModelIndex::Comment:
+        {
+            comment(outputItem.stringValue());
+            break;
+        }
+        case QXmlNodeModelIndex::Document:
+        {
+            sendFromAxis<QXmlNodeModelIndex::AxisChild>(asNode);
+            break;
+        }
+        case QXmlNodeModelIndex::Namespace:
+            Q_ASSERT_X(false, Q_FUNC_INFO, "Not implemented");
+    }
+}
+
+void QAbstractXmlReceiver::whitespaceOnly(const QStringRef &value)
+{
+    Q_ASSERT_X(value.toString().trimmed().isEmpty(), Q_FUNC_INFO,
+               "The caller must guarantee only whitespace is passed. Use characters() in other cases.");
+    characters(value.toString());
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qsequencereceiver_p.h b/src/xmlpatterns/data/qsequencereceiver_p.h
new file mode 100644
index 0000000..b5490fd
--- /dev/null
+++ b/src/xmlpatterns/data/qsequencereceiver_p.h
@@ -0,0 +1,192 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_SequenceReceiver_H
+#define Patternist_SequenceReceiver_H
+
+#include <QSharedData>
+
+#include "qitem_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short A push interface for the XPath Data Model. Similar to SAX's
+     * ContentHandler.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class QAbstractXmlReceiver : public QSharedData
+    {
+    public:
+        typedef QExplicitlySharedDataPointer<QAbstractXmlReceiver> Ptr;
+
+        inline QAbstractXmlReceiver()
+        {
+        }
+
+        virtual ~QAbstractXmlReceiver();
+
+        /**
+         * @short Signals the start of an element by name @p name.
+         */
+        virtual void startElement(const QXmlName name) = 0;
+
+        /**
+         * @short Signals the presence of the namespace declaration @p nb.
+         *
+         * This event is received @c after startElement(), as opposed to
+         * SAX, and before any attribute() events.
+         */
+        virtual void namespaceBinding(const QXmlName &nb) = 0;
+
+        /**
+         * @short Signals the end of the current element.
+         */
+        virtual void endElement() = 0;
+
+        /**
+         * @short Signals the presence of an attribute node.
+         *
+         * This function is guaranteed by the caller to always be
+         * called after a call to startElement() or attribute().
+         *
+         * @param name the name of the attribute. Guaranteed to always be
+         * non-null.
+         * @param value the value of the attribute. Guaranteed to always be
+         * non-null.
+         */
+        virtual void attribute(const QXmlName name,
+                               const QString &value) = 0;
+
+        virtual void processingInstruction(const QXmlName name,
+                                           const QString &value) = 0;
+        virtual void comment(const QString &value) = 0;
+
+        /**
+         * @short Sends an Item to this QAbstractXmlReceiver that may be a QXmlNodeModelIndex or an
+         * AtomicValue.
+         */
+        virtual void item(const Item &item) = 0;
+
+        /**
+         * Sends a text node with value @p value. Adjascent text nodes
+         * may be sent. There's no restrictions on @p value, beyond that it
+         * must be valid XML characters. For instance, @p value may contain
+         * only whitespace.
+         *
+         * @see whitespaceOnly()
+         */
+        virtual void characters(const QString &value) = 0;
+
+        /**
+         * This function may be called instead of characters() if, and only if,
+         * @p value consists only of whitespace.
+         *
+         * The caller gurantees that @p value, is not empty.
+         *
+         * By whitespace is meant a sequence of characters that are either
+         * spaces, tabs, or the two new line characters, in any order. In
+         * other words, the whole of Unicode's whitespace category is not
+         * considered whitespace.
+         *
+         * However, there's no guarantee or requirement that whitespaceOnly()
+         * is called for text nodes containing whitespace only, characters()
+         * may be called just as well. This is why the default implementation
+         * for whitespaceOnly() calls characters().
+         *
+         * @see characters()
+         */
+        virtual void whitespaceOnly(const QStringRef &value);
+
+        /**
+         * Start of a document node.
+         */
+        virtual void startDocument() = 0;
+
+        /**
+         * End of a document node.
+         */
+        virtual void endDocument() = 0;
+
+    protected:
+        /**
+         * Treats @p outputItem as an node and calls the appropriate function,
+         * such as attribute() or comment(), depending on its QXmlNodeModelIndex::NodeKind.
+         *
+         * This a helper function sub-classes can use to multi-plex Nodes received
+         * via item().
+         *
+         * @param outputItem must be a QXmlNodeModelIndex.
+         */
+        void sendAsNode(const Item &outputItem);
+
+    private:
+        /**
+         * Call sendAsNode() for each child of @p node. As consistent with the
+         * XPath Data Model, this does not include attribute nodes.
+         */
+        template<const QXmlNodeModelIndex::Axis axis>
+        inline void sendFromAxis(const QXmlNodeModelIndex &node);
+        Q_DISABLE_COPY(QAbstractXmlReceiver)
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qsorttuple.cpp b/src/xmlpatterns/data/qsorttuple.cpp
new file mode 100644
index 0000000..598e67b
--- /dev/null
+++ b/src/xmlpatterns/data/qsorttuple.cpp
@@ -0,0 +1,89 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 <QString>
+
+#include "qbuiltintypes_p.h"
+#include "qsorttuple_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+bool SortTuple::isAtomicValue() const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO,
+               "It makes no sense to call this function.");
+    return false;
+}
+
+QString SortTuple::stringValue() const
+{
+    return QLatin1String("SortTuple");
+}
+
+bool SortTuple::isNode() const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO,
+               "It makes no sense to call this function.");
+    return false;
+}
+
+bool SortTuple::hasError() const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO,
+               "It makes no sense to call this function.");
+    return false;
+}
+
+Item::Iterator::Ptr SortTuple::typedValue() const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO,
+               "It makes no sense to call this function.");
+    return Item::Iterator::Ptr();
+}
+
+ItemType::Ptr SortTuple::type() const
+{
+    return BuiltinTypes::xsAnyAtomicType;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qsorttuple_p.h b/src/xmlpatterns/data/qsorttuple_p.h
new file mode 100644
index 0000000..b407274
--- /dev/null
+++ b/src/xmlpatterns/data/qsorttuple_p.h
@@ -0,0 +1,148 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_SortTuple_H
+#define Patternist_SortTuple_H
+
+#include "qitem_p.h"
+#include "qitem_p.h"
+#include "qitemtype_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Represents a value and its sort keys
+     * in FLOWR's <tt>order by</tt> clause.
+     *
+     * SortTuple doesn't correspond to anything in the XPath Data Model and
+     * can therefore well be described as an exotic implementation detail.
+     * Most of its functions asserts because it makes no sense to
+     * call them.
+     *
+     * SortTuple exclusively exists for use with the expressions OrderBy and
+     * ReturnOrderBy, and acts as a carrier between those two for sort keys and
+     * source values.
+     *
+     * @ingroup Patternist_xdm
+     * @author Frans Englich <frans.englich@nokia.com>
+     */
+    class SortTuple : public AtomicValue
+    {
+    public:
+        /**
+         * @p aSortKeys may be empty.
+         */
+        inline SortTuple(const Item::Iterator::Ptr &aValue,
+                         const Item::Vector &aSortKeys) : m_sortKeys(aSortKeys),
+                                                          m_value(aValue)
+        {
+            Q_ASSERT(m_value);
+            Q_ASSERT(!m_sortKeys.isEmpty());
+        }
+
+        /**
+         * A smart pointer wrapping SortTuple instances.
+         */
+        typedef QExplicitlySharedDataPointer<SortTuple> Ptr;
+
+        /**
+         * This function is sometimes called by Literal::description().
+         * This function simply returns "SortTuple".
+         */
+        virtual QString stringValue() const;
+
+        /**
+         * @short Always asserts.
+         */
+        virtual Item::Iterator::Ptr typedValue() const;
+
+        /**
+         * @short Always asserts.
+         */
+        virtual bool isAtomicValue() const;
+
+        /**
+         * @short Always asserts.
+         */
+        virtual bool isNode() const;
+
+        /**
+         * @short Always asserts.
+         */
+        virtual bool hasError() const;
+
+        virtual ItemType::Ptr type() const;
+
+        inline const Item::Vector &sortKeys() const
+        {
+            return m_sortKeys;
+        }
+
+        inline const Item::Iterator::Ptr &value() const
+        {
+            return m_value;
+        }
+
+    private:
+        const Item::Vector          m_sortKeys;
+        const Item::Iterator::Ptr   m_value;
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/quntypedatomic.cpp b/src/xmlpatterns/data/quntypedatomic.cpp
new file mode 100644
index 0000000..ccb65d7
--- /dev/null
+++ b/src/xmlpatterns/data/quntypedatomic.cpp
@@ -0,0 +1,64 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qbuiltintypes_p.h"
+
+#include "quntypedatomic_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+UntypedAtomic::UntypedAtomic(const QString &s) : AtomicString(s)
+{
+}
+
+UntypedAtomic::Ptr UntypedAtomic::fromValue(const QString &value)
+{
+    return UntypedAtomic::Ptr(new UntypedAtomic(value));
+}
+
+ItemType::Ptr UntypedAtomic::type() const
+{
+    return BuiltinTypes::xsUntypedAtomic;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/quntypedatomic_p.h b/src/xmlpatterns/data/quntypedatomic_p.h
new file mode 100644
index 0000000..45665ac
--- /dev/null
+++ b/src/xmlpatterns/data/quntypedatomic_p.h
@@ -0,0 +1,97 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_UntypedAtomic_H
+#define Patternist_UntypedAtomic_H
+
+#include "qatomicstring_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+
+    /**
+     * @short Implements the value instance of the @c xs:untypedAtomic type.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class UntypedAtomic : public AtomicString
+    {
+    public:
+        friend class CommonValues;
+
+        /**
+         * Creates an instance representing @p value.
+         *
+         * This fromValue function takes no context argument because it doesn't need it -- it
+         * casting to xs:untypedAtomic always succeeds.
+         *
+         * @note This function does not remove the string literal escaping allowed in XPath 2.0
+         */
+        static UntypedAtomic::Ptr fromValue(const QString &value);
+
+        virtual ItemType::Ptr type() const;
+
+    protected:
+
+        UntypedAtomic(const QString &value);
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qvalidationerror.cpp b/src/xmlpatterns/data/qvalidationerror.cpp
new file mode 100644
index 0000000..c07b036
--- /dev/null
+++ b/src/xmlpatterns/data/qvalidationerror.cpp
@@ -0,0 +1,90 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qvalidationerror_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+ValidationError::ValidationError(const QString &msg,
+                                 const ReportContext::ErrorCode code) : m_message(msg),
+                                                                        m_code(code)
+{
+}
+
+AtomicValue::Ptr ValidationError::createError(const QString &description,
+                                              const ReportContext::ErrorCode code)
+{
+    return ValidationError::Ptr(new ValidationError(description, code));
+}
+
+bool ValidationError::hasError() const
+{
+    return true;
+}
+
+QString ValidationError::stringValue() const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO, "stringValue() asked for ValidationError -- it makes no sense.");
+    return QString();
+}
+
+QString ValidationError::message() const
+{
+    return m_message;
+}
+
+ItemType::Ptr ValidationError::type() const
+{
+    Q_ASSERT_X(false, Q_FUNC_INFO,
+               "This function should never be called, the caller "
+               "didn't check whether the AtomicValue was an ValidationError.");
+    return ItemType::Ptr();
+}
+
+ReportContext::ErrorCode ValidationError::errorCode() const
+{
+    return m_code;
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qvalidationerror_p.h b/src/xmlpatterns/data/qvalidationerror_p.h
new file mode 100644
index 0000000..d93f6cb
--- /dev/null
+++ b/src/xmlpatterns/data/qvalidationerror_p.h
@@ -0,0 +1,123 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_ValidationError_H
+#define Patternist_ValidationError_H
+
+#include "qitem_p.h"
+#include "qreportcontext_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Used for signalling casting errors.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class ValidationError : public AtomicValue
+    {
+    public:
+        typedef QExplicitlySharedDataPointer<ValidationError> Ptr;
+
+        /**
+         * Creates a ValidationError instance that represents a type error.
+         *
+         * @param description A detailed description of what that made the cast fail,
+         * if any. If @c null, which QString() creates, a generic message
+         * will be used.
+         */
+        static AtomicValue::Ptr createError(const QString &description = QString(),
+                                            const ReportContext::ErrorCode = ReportContext::FORG0001);
+
+        /**
+         * A human readable, translated message describing the error.
+         */
+        QString message() const;
+
+        /**
+         * @returns always @c true
+         */
+        virtual bool hasError() const;
+
+        /**
+         * Always results in an assert crash.
+         */
+        virtual ItemType::Ptr type() const;
+
+        /**
+         * Always results in an assert crash.
+         */
+        virtual QString stringValue() const;
+
+        /**
+         * @returns the error code this ValidationError represents. Typically, this
+         * is ReportContext::FORG0001.
+         */
+        ReportContext::ErrorCode errorCode() const;
+
+    protected:
+        ValidationError(const QString &msg, const ReportContext::ErrorCode code);
+
+        const QString                   m_message;
+        const ReportContext::ErrorCode  m_code;
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qvaluefactory.cpp b/src/xmlpatterns/data/qvaluefactory.cpp
new file mode 100644
index 0000000..8f7e5a3
--- /dev/null
+++ b/src/xmlpatterns/data/qvaluefactory.cpp
@@ -0,0 +1,106 @@
+/****************************************************************************
+**
+** Copyright (C) 2008 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 "qatomiccaster_p.h"
+#include "qatomicstring_p.h"
+#include "qcastingplatform_p.h"
+#include "qvaluefactory_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+/**
+ * @short Helper class for ValueFactory::fromLexical() which exposes
+ * CastingPlatform appropriately.
+ *
+ * @relates ValueFactory
+ */
+class PerformValueConstruction : public CastingPlatform<PerformValueConstruction, false>
+                               , public SourceLocationReflection
+{
+public:
+    PerformValueConstruction(const SourceLocationReflection *const sourceLocationReflection,
+                             const SchemaType::Ptr &toType) : m_sourceReflection(sourceLocationReflection)
+                                                            , m_targetType(AtomicType::Ptr(toType))
+    {
+        Q_ASSERT(m_sourceReflection);
+    }
+
+    AtomicValue::Ptr operator()(const AtomicValue::Ptr &lexicalValue,
+                                const SchemaType::Ptr & /*type*/,
+                                const ReportContext::Ptr &context)
+    {
+        prepareCasting(context, BuiltinTypes::xsString);
+        return AtomicValue::Ptr(const_cast<AtomicValue *>(cast(lexicalValue, context).asAtomicValue()));
+    }
+
+    const SourceLocationReflection *actualReflection() const
+    {
+        return m_sourceReflection;
+    }
+
+    ItemType::Ptr targetType() const
+    {
+        return m_targetType;
+    }
+
+private:
+    const SourceLocationReflection *const m_sourceReflection;
+    const ItemType::Ptr                   m_targetType;
+};
+
+AtomicValue::Ptr ValueFactory::fromLexical(const QString &lexicalValue,
+                                           const SchemaType::Ptr &type,
+                                           const ReportContext::Ptr &context,
+                                           const SourceLocationReflection *const sourceLocationReflection)
+{
+    Q_ASSERT(context);
+    Q_ASSERT(type);
+    Q_ASSERT_X(type->category() == SchemaType::SimpleTypeAtomic, Q_FUNC_INFO,
+               "We can only construct for atomic values.");
+
+    return PerformValueConstruction(sourceLocationReflection, type)(AtomicString::fromValue(lexicalValue),
+                                                                    type,
+                                                                    context);
+}
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qvaluefactory_p.h b/src/xmlpatterns/data/qvaluefactory_p.h
new file mode 100644
index 0000000..e383d27
--- /dev/null
+++ b/src/xmlpatterns/data/qvaluefactory_p.h
@@ -0,0 +1,98 @@
+/****************************************************************************
+**
+** Copyright (C) 2008 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_ValueFactory_H
+#define Patternist_ValueFactory_H
+
+#include "qitem_p.h"
+#include "qreportcontext_p.h"
+#include "qschematype_p.h"
+
+QT_BEGIN_HEADER
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Provides fromLexical(), which allows instantiation of atomic
+     * values from arbitrary types.
+     *
+     * This class wraps the helper class CastingPlatform with a more specific,
+     * high-level API.
+     *
+     * @see CastingPlatform
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_schema
+     */
+    class ValueFactory
+    {
+    public:
+        /**
+         * @short Returns an AtomicValue of type @p type from the lexical space
+         * @p lexicalValue, and raise an error through @p context if that's
+         * impossible.
+         *
+         * ValueFactory does not take ownership of @p sourceLocationReflection.
+         */
+        static AtomicValue::Ptr fromLexical(const QString &lexicalValue,
+                                            const SchemaType::Ptr &type,
+                                            const ReportContext::Ptr &context,
+                                            const SourceLocationReflection *const sourceLocationReflection);
+
+    private:
+        Q_DISABLE_COPY(ValueFactory)
+    };
+}
+
+QT_END_NAMESPACE
+QT_END_HEADER
+
+#endif
diff --git a/src/xmlpatterns/data/qyearmonthduration.cpp b/src/xmlpatterns/data/qyearmonthduration.cpp
new file mode 100644
index 0000000..5ff60a5
--- /dev/null
+++ b/src/xmlpatterns/data/qyearmonthduration.cpp
@@ -0,0 +1,186 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qbuiltintypes_p.h"
+#include "qcommonvalues_p.h"
+
+#include "qyearmonthduration_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+YearMonthDuration::YearMonthDuration(const bool isPositiveP,
+                                     const YearProperty yearsP,
+                                     const MonthProperty monthsP) : AbstractDuration(isPositiveP),
+                                                                    m_years(yearsP),
+                                                                    m_months(monthsP)
+{
+    Q_ASSERT(monthsP < 32 && monthsP > -32);
+}
+
+YearMonthDuration::Ptr YearMonthDuration::fromLexical(const QString &lexical)
+{
+    static const CaptureTable captureTable(
+        /* The extra paranthesis is a build fix for GCC 3.3. */
+        (QRegExp(QLatin1String(
+                "^\\s*"         /* Any preceding whitespace. */
+                "(-)?"          /* Sign, if any. */
+                "P"             /* Delimiter. */
+                "(?:(\\d+)Y)?"  /* The years part. */
+                "(?:(\\d+)M)?"  /* The months part. */
+                "\\s*$"         /* Any terminating whitespace. */))),
+        2,                      /* yearP. */
+        3                       /* monthP. */);
+
+    YearProperty years = 0;
+    MonthProperty months = 0;
+    bool isPos;
+
+    const AtomicValue::Ptr err(create(captureTable, lexical, &isPos, &years,
+                                      &months, 0, 0, 0, 0, 0));
+
+    return err ? err : YearMonthDuration::Ptr(new YearMonthDuration(isPos, years, months));
+}
+
+YearMonthDuration::Ptr YearMonthDuration::fromComponents(const bool isPositive,
+                                                         const YearProperty years,
+                                                         const MonthProperty months)
+{
+    return YearMonthDuration::Ptr(new YearMonthDuration(isPositive, years, months));
+}
+
+QString YearMonthDuration::stringValue() const
+{
+    QString retval;
+
+    if(!m_isPositive)
+        retval.append(QLatin1Char('-'));
+
+    retval.append(QLatin1Char('P'));
+
+    /* When years == 0 and months == 0, we get "P0M", which
+     * is the correct canonical form. */
+    if(m_years)
+    {
+        retval.append(QString::number(m_years));
+        retval.append(QLatin1Char('Y'));
+
+        if(m_months)
+        {
+            retval.append(QString::number(m_months));
+            retval.append(QLatin1Char('M'));
+        }
+    }
+    else
+    {
+        if(m_months)
+        {
+            retval.append(QString::number(m_months));
+            retval.append(QLatin1Char('M'));
+        }
+        else
+            return QLatin1String("P0M"); /* Ensure the canonical form. */
+    }
+
+    return retval;
+}
+
+AbstractDuration::Value YearMonthDuration::value() const
+{
+    return (m_years * 12 + m_months) * (m_isPositive ? 1 : -1);
+}
+
+Item YearMonthDuration::fromValue(const Value val) const
+{
+    if(val == 0)
+        return toItem(CommonValues::YearMonthDurationZero);
+    else
+    {
+        const Value absValue = qAbs(val);
+        return toItem(YearMonthDuration::fromComponents(val >= 0,
+                                                        absValue / 12,
+                                                        absValue % 12));
+    }
+}
+
+ItemType::Ptr YearMonthDuration::type() const
+{
+    return BuiltinTypes::xsYearMonthDuration;
+}
+
+YearProperty YearMonthDuration::years() const
+{
+    return m_years;
+}
+
+MonthProperty YearMonthDuration::months() const
+{
+    return m_months;
+}
+
+DayCountProperty YearMonthDuration::days() const
+{
+    return 0;
+}
+
+HourProperty YearMonthDuration::hours() const
+{
+    return 0;
+}
+
+MinuteProperty YearMonthDuration::minutes() const
+{
+    return 0;
+}
+
+SecondProperty YearMonthDuration::seconds() const
+{
+    return 0;
+}
+
+MSecondProperty YearMonthDuration::mseconds() const
+{
+    return 0;
+}
+
+
+QT_END_NAMESPACE
diff --git a/src/xmlpatterns/data/qyearmonthduration_p.h b/src/xmlpatterns/data/qyearmonthduration_p.h
new file mode 100644
index 0000000..ca53325
--- /dev/null
+++ b/src/xmlpatterns/data/qyearmonthduration_p.h
@@ -0,0 +1,151 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_YearMonthDuration_H
+#define Patternist_YearMonthDuration_H
+
+#include "qabstractduration_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Implements the value instance of the @c xs:yearMonthDuration type.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_xdm
+     */
+    class YearMonthDuration : public AbstractDuration
+    {
+    public:
+        typedef AtomicValue::Ptr Ptr;
+
+        /**
+         * Creates an instance from the lexical representation @p string.
+         */
+        static YearMonthDuration::Ptr fromLexical(const QString &string);
+
+        static YearMonthDuration::Ptr fromComponents(const bool isPositive,
+                                                     const YearProperty years,
+                                                     const MonthProperty months);
+
+        virtual ItemType::Ptr type() const;
+        virtual QString stringValue() const;
+
+        /**
+         * @returns the value of this @c xs:yearMonthDuration in months.
+         * @see <a href="http://www.w3.org/TR/xpath-functions/#dt-yearMonthDuration">XQuery 1.0
+         * and XPath 2.0 Functions and Operators, 10.3.2.2 Calculating the value of a
+         * xs:dayTimeDuration from the lexical representation</a>
+         */
+        virtual Value value() const;
+
+        /**
+         * If @p val is zero, is CommonValues::YearMonthDurationZero returned.
+         */
+        virtual Item fromValue(const Value val) const;
+
+        /**
+         * @returns the years component. Always positive.
+         */
+        virtual YearProperty years() const;
+
+        /**
+         * @returns the months component. Always positive.
+         */
+        virtual MonthProperty months() const;
+
+        /**
+         * @returns always 0.
+         */
+        virtual DayCountProperty days() const;
+
+        /**
+         * @returns always 0.
+         */
+        virtual HourProperty hours() const;
+
+        /**
+         * @returns always 0.
+         */
+        virtual MinuteProperty minutes() const;
+
+        /**
+         * @returns always 0.
+         */
+        virtual SecondProperty seconds() const;
+
+        /**
+         * @returns always 0.
+         */
+        virtual MSecondProperty mseconds() const;
+
+    protected:
+        friend class CommonValues;
+
+        YearMonthDuration(const bool isPositive,
+                          const YearProperty years,
+                          const MonthProperty months);
+
+    private:
+        const YearProperty  m_years;
+        const MonthProperty m_months;
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif