PrismLauncher/launcher/Version.h
Edgars Cīrulis f49ad2ee03
Version.h: Fix comparison of null version in Version class
Co-authored-by: Rachel Powers <508861+Ryex@users.noreply.github.com>
Signed-off-by: Edgars Cīrulis <edgarsscirulis@gmail.com>
2023-01-19 10:40:30 +02:00

183 lines
5.6 KiB
C++

// SPDX-License-Identifier: GPL-3.0-only
/*
* PolyMC - Minecraft Launcher
* Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright 2013-2021 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <QDebug>
#include <QString>
#include <QStringView>
#include <QList>
class QUrl;
class Version
{
public:
Version(const QString &str);
Version() {}
bool operator<(const Version &other) const;
bool operator<=(const Version &other) const;
bool operator>(const Version &other) const;
bool operator>=(const Version &other) const;
bool operator==(const Version &other) const;
bool operator!=(const Version &other) const;
QString toString() const
{
return m_string;
}
friend QDebug operator<<(QDebug debug, const Version& v);
private:
QString m_string;
struct Section
{
explicit Section(const QString &fullString)
{
m_fullString = fullString;
m_isNull = true;
int cutoff = m_fullString.size();
for(int i = 0; i < m_fullString.size(); i++)
{
if(!m_fullString[i].isDigit())
{
cutoff = i;
break;
}
}
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
auto numPart = QStringView{m_fullString}.left(cutoff);
#else
auto numPart = m_fullString.leftRef(cutoff);
#endif
if(numPart.size())
{
numValid = true;
m_isNull = false;
m_numPart = numPart.toInt();
}
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
auto stringPart = QStringView{m_fullString}.mid(cutoff);
#else
auto stringPart = m_fullString.midRef(cutoff);
#endif
if(stringPart.size())
{
m_isNull = false;
m_stringPart = stringPart.toString();
}
}
explicit Section() {}
bool numValid = false;
int m_numPart = 0;
QString m_stringPart;
QString m_fullString;
bool m_isNull;
inline bool operator!=(const Section &other) const
{
if (m_isNull && other.numValid) {
return 0 != other.m_numPart;
} else if (numValid && other.m_isNull) {
return m_numPart != 0;
} else if (m_isNull || other.m_isNull) {
if ((m_stringPart == ".") || (other.m_stringPart == ".")) return false;
return true;
}
if(numValid && other.numValid)
{
return m_numPart != other.m_numPart || m_stringPart != other.m_stringPart;
}
else
{
return m_fullString != other.m_fullString;
}
}
inline bool operator<(const Section &other) const
{
if (m_isNull && other.numValid) {
return 0 < other.m_numPart;
} else if (numValid && other.m_isNull) {
return m_numPart < 0;
} else if (m_isNull || other.m_isNull) {
return true;
}
if(numValid && other.numValid)
{
if(m_numPart < other.m_numPart)
return true;
if(m_numPart == other.m_numPart && m_stringPart < other.m_stringPart)
return true;
return false;
}
else
{
return m_fullString < other.m_fullString;
}
}
inline bool operator>(const Section &other) const
{
if (m_isNull && other.numValid) {
return 0 > other.m_numPart;
} else if (numValid && other.m_isNull) {
return m_numPart > 0;
} else if (m_isNull || other.m_isNull) {
return false;
}
if(numValid && other.numValid)
{
if(m_numPart > other.m_numPart)
return true;
if(m_numPart == other.m_numPart && m_stringPart > other.m_stringPart)
return true;
return false;
}
else
{
return m_fullString > other.m_fullString;
}
}
};
QList<Section> m_sections;
void parse();
};