pollymc/launcher/Version.cpp

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#include "Version.h"
#include <QDebug>
#include <QRegularExpression>
#include <QRegularExpressionMatch>
#include <QUrl>
Version::Version(QString str) : m_string(std::move(str))
{
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parse();
}
#define VERSION_OPERATOR(return_on_different) \
bool exclude_our_sections = false; \
bool exclude_their_sections = false; \
\
const auto size = qMax(m_sections.size(), other.m_sections.size()); \
for (int i = 0; i < size; ++i) { \
Section sec1 = (i >= m_sections.size()) ? Section() : m_sections.at(i); \
Section sec2 = (i >= other.m_sections.size()) ? Section() : other.m_sections.at(i); \
\
{ /* Don't include appendixes in the comparison */ \
if (sec1.isAppendix()) \
exclude_our_sections = true; \
if (sec2.isAppendix()) \
exclude_their_sections = true; \
\
if (exclude_our_sections) { \
sec1 = Section(); \
if (sec2.m_isNull) \
break; \
} \
\
if (exclude_their_sections) { \
sec2 = Section(); \
if (sec1.m_isNull) \
break; \
} \
} \
\
if (sec1 != sec2) \
return return_on_different; \
}
bool Version::operator<(const Version& other) const
{
VERSION_OPERATOR(sec1 < sec2)
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return false;
}
bool Version::operator==(const Version& other) const
{
VERSION_OPERATOR(false)
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return true;
}
bool Version::operator!=(const Version& other) const
{
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return !operator==(other);
}
bool Version::operator<=(const Version& other) const
{
return *this < other || *this == other;
}
bool Version::operator>(const Version& other) const
{
return !(*this <= other);
}
bool Version::operator>=(const Version& other) const
{
return !(*this < other);
}
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void Version::parse()
{
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m_sections.clear();
QString currentSection;
if (m_string.isEmpty())
return;
auto classChange = [&](QChar lastChar, QChar currentChar) {
if (lastChar.isNull())
return false;
if (lastChar.isDigit() != currentChar.isDigit())
return true;
const QList<QChar> s_separators{ '.', '-', '+' };
if (s_separators.contains(currentChar) && currentSection.at(0) != currentChar)
return true;
return false;
};
currentSection += m_string.at(0);
for (int i = 1; i < m_string.size(); ++i) {
const auto& current_char = m_string.at(i);
if (classChange(m_string.at(i - 1), current_char)) {
if (!currentSection.isEmpty())
m_sections.append(Section(currentSection));
currentSection = "";
}
currentSection += current_char;
}
if (!currentSection.isEmpty())
m_sections.append(Section(currentSection));
}
/// qDebug print support for the Version class
QDebug operator<<(QDebug debug, const Version& v)
{
QDebugStateSaver saver(debug);
debug.nospace() << "Version{ string: " << v.toString() << ", sections: [ ";
bool first = true;
for (auto s : v.m_sections) {
if (!first) debug.nospace() << ", ";
debug.nospace() << s.m_fullString;
first = false;
}
debug.nospace() << " ]" << " }";
return debug;
}