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/****************************************************************************
**
** Copyright (C) 2013 Aleix Pol Gonzalez <aleixpol@kde.org>
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qcollator_p.h"
#include "qstringlist.h"
#include "qstring.h"
#include <cstring>
#include <cwchar>
QT_BEGIN_NAMESPACE
void QCollatorPrivate::init()
{
if (locale != QLocale())
qWarning("Only default locale supported with the posix collation implementation");
if (caseSensitivity != Qt::CaseSensitive)
qWarning("Case insensitive sorting unsupported in the posix collation implementation");
if (numericMode)
qWarning("Numeric mode unsupported in the posix collation implementation");
if (ignorePunctuation)
qWarning("Ignoring punctuation unsupported in the posix collation implementation");
dirty = false;
}
void QCollatorPrivate::cleanup()
{
}
static void stringToWCharArray(QVarLengthArray<wchar_t> &ret, const QString &string)
{
ret.resize(string.length());
int len = string.toWCharArray(ret.data());
ret.resize(len+1);
ret[len] = 0;
}
int QCollator::compare(const QChar *s1, int len1, const QChar *s2, int len2) const
{
QVarLengthArray<wchar_t> array1, array2;
stringToWCharArray(array1, QString(s1, len1));
stringToWCharArray(array2, QString(s2, len2));
return std::wcscoll(array1.constData(), array2.constData());
}
int QCollator::compare(const QString &s1, const QString &s2) const
{
QVarLengthArray<wchar_t> array1, array2;
stringToWCharArray(array1, s1);
stringToWCharArray(array2, s2);
int result = std::wcscoll(array1.constData(), array2.constData());
return result > 0 ? 1 : (result == 0 ? 0 : -1);
}
int QCollator::compare(const QStringRef &s1, const QStringRef &s2) const
{
if (d->dirty)
d->init();
return compare(s1.constData(), s1.size(), s2.constData(), s2.size());
}
QCollatorSortKey QCollator::sortKey(const QString &string) const
{
if (d->dirty)
d->init();
QVarLengthArray<wchar_t> original;
stringToWCharArray(original, string);
QVector<wchar_t> result(string.size());
size_t size = std::wcsxfrm(result.data(), original.constData(), string.size());
if (size > uint(result.size())) {
result.resize(size+1);
size = std::wcsxfrm(result.data(), original.constData(), string.size());
}
result.resize(size+1);
result[size] = 0;
return QCollatorSortKey(new QCollatorSortKeyPrivate(result));
}
int QCollatorSortKey::compare(const QCollatorSortKey &otherKey) const
{
return std::wcscmp(d->m_key.constData(), otherKey.d->m_key.constData());
}
QT_END_NAMESPACE
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