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/****************************************************************************
**
** Copyright (C) 2013 Aleix Pol Gonzalez <aleixpol@kde.org>
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qcollator_p.h"
#include "qlocale_p.h"
#include "qstringlist.h"
#include "qstring.h"
#include <QtCore/private/qcore_mac_p.h>
#include <CoreFoundation/CoreFoundation.h>
#include <CoreFoundation/CFLocale.h>
#include <cstring>
#include <QDebug>
QT_BEGIN_NAMESPACE
void QCollatorPrivate::init()
{
cleanup();
/*
LocaleRefFromLocaleString() will accept "POSIX" as the locale name, but
the locale it produces (named "pos") doesn't implement the [A-Z] < [a-z]
behavior we expect of the C locale. We can use QStringView to get round
that for collation, but this leaves no way to do a sort key.
*/
if (isC())
return;
LocaleRef localeRef;
int rc = LocaleRefFromLocaleString(QLocalePrivate::get(locale)->bcp47Name().constData(), &localeRef);
if (rc != 0)
qWarning("couldn't initialize the locale");
UInt32 options = 0;
if (caseSensitivity == Qt::CaseInsensitive)
options |= kUCCollateCaseInsensitiveMask;
if (numericMode)
options |= kUCCollateDigitsAsNumberMask | kUCCollateDigitsOverrideMask;
if (!ignorePunctuation)
options |= kUCCollatePunctuationSignificantMask;
OSStatus status = UCCreateCollator(
localeRef,
0,
options,
&collator
);
if (status != 0)
qWarning("Couldn't initialize the collator");
dirty = false;
}
void QCollatorPrivate::cleanup()
{
if (collator)
UCDisposeCollator(&collator);
collator = 0;
}
int QCollator::compare(const QChar *s1, int len1, const QChar *s2, int len2) const
{
if (d->dirty)
d->init();
if (!d->collator)
return QStringView(s1, len1).compare(QStringView(s2, len2), caseSensitivity());
SInt32 result;
Boolean equivalent;
UCCompareText(d->collator,
reinterpret_cast<const UniChar *>(s1), len1,
reinterpret_cast<const UniChar *>(s2), len2,
&equivalent,
&result);
if (equivalent)
return 0;
return result < 0 ? -1 : 1;
}
int QCollator::compare(const QString &str1, const QString &str2) const
{
return compare(str1.constData(), str1.size(), str2.constData(), str2.size());
}
int QCollator::compare(const QStringRef &s1, const QStringRef &s2) const
{
return compare(s1.constData(), s1.size(), s2.constData(), s2.size());
}
QCollatorSortKey QCollator::sortKey(const QString &string) const
{
if (d->dirty)
d->init();
if (!d->collator) {
// What should (or even *can*) we do here ? (See init()'s comment.)
qWarning("QCollator doesn't support sort keys for the C locale on Darwin");
return QCollatorSortKey(nullptr);
}
//Documentation recommends having it 5 times as big as the input
QVector<UCCollationValue> ret(string.size() * 5);
ItemCount actualSize;
int status = UCGetCollationKey(d->collator, reinterpret_cast<const UniChar *>(string.constData()), string.count(),
ret.size(), &actualSize, ret.data());
ret.resize(actualSize+1);
if (status == kUCOutputBufferTooSmall) {
UCGetCollationKey(d->collator, reinterpret_cast<const UniChar *>(string.constData()), string.count(),
ret.size(), &actualSize, ret.data());
}
ret[actualSize] = 0;
return QCollatorSortKey(new QCollatorSortKeyPrivate(std::move(ret)));
}
int QCollatorSortKey::compare(const QCollatorSortKey &key) const
{
if (!d.data())
return 0;
SInt32 order;
UCCompareCollationKeys(d->m_key.data(), d->m_key.size(),
key.d->m_key.data(), key.d->m_key.size(),
0, &order);
return order;
}
QT_END_NAMESPACE
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