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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** 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 "qinteger_p.h"

#include "qtocodepointsiterator_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

ToCodepointsIterator::ToCodepointsIterator(const QString &string)
                             : m_string(string),
                               m_len(string.length()),
                               m_position(0)
{
    Q_ASSERT(!string.isEmpty());
}

Item ToCodepointsIterator::next()
{
    if(m_position == -1)
        return Item();

    ++m_position;
    if(m_position > m_len)
    {
        m_position = -1;
        m_current.reset();
        return m_current;
    }

    m_current = Integer::fromValue(m_string.at(m_position - 1).unicode());
    return m_current;
}

xsInteger ToCodepointsIterator::count()
{
    return m_len;
}

Item ToCodepointsIterator::current() const
{
    return m_current;
}

xsInteger ToCodepointsIterator::position() const
{
    return m_position;
}

Item::Iterator::Ptr ToCodepointsIterator::copy() const
{
    return Item::Iterator::Ptr(new ToCodepointsIterator(m_string));
}

QT_END_NAMESPACE