diff options
Diffstat (limited to 'src/corelib/text/qcollator_posix.cpp')
-rw-r--r-- | src/corelib/text/qcollator_posix.cpp | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/src/corelib/text/qcollator_posix.cpp b/src/corelib/text/qcollator_posix.cpp new file mode 100644 index 0000000000..9cbc539ebe --- /dev/null +++ b/src/corelib/text/qcollator_posix.cpp @@ -0,0 +1,116 @@ +/**************************************************************************** +** +** 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 "qstringlist.h" +#include "qstring.h" + +#include <cstring> +#include <cwchar> + +QT_BEGIN_NAMESPACE + +void QCollatorPrivate::init() +{ + if (!isC()) { + if (locale != QLocale()) + qWarning("Only C and 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, QStringView string) +{ + ret.resize(string.length()); + int len = string.toWCharArray(ret.data()); + ret.resize(len+1); + ret[len] = 0; +} + +int QCollator::compare(QStringView s1, QStringView s2) const +{ + if (d->isC()) + return s1.compare(s2, caseSensitivity()); + if (d->dirty) + d->init(); + + QVarLengthArray<wchar_t> array1, array2; + stringToWCharArray(array1, s1); + stringToWCharArray(array2, s2); + return std::wcscoll(array1.constData(), array2.constData()); +} + +QCollatorSortKey QCollator::sortKey(const QString &string) const +{ + if (d->dirty) + d->init(); + + QVarLengthArray<wchar_t> original; + stringToWCharArray(original, string); + QVector<wchar_t> result(original.size()); + if (d->isC()) { + std::copy(original.cbegin(), original.cend(), result.begin()); + } else { + 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(std::move(result))); +} + +int QCollatorSortKey::compare(const QCollatorSortKey &otherKey) const +{ + return std::wcscmp(d->m_key.constData(), otherKey.d->m_key.constData()); +} + +QT_END_NAMESPACE |