mirror of
https://github.com/OpenMW/openmw.git
synced 2025-10-31 21:26:41 +00:00
534 lines
17 KiB
C++
534 lines
17 KiB
C++
#include "gamesettings.hpp"
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#include "launchersettings.hpp"
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#include <QDir>
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#include <QRegularExpression>
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#include <components/files/configurationmanager.hpp>
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#include <components/files/qtconversion.hpp>
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#include <components/misc/utf8qtextstream.hpp>
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const char Config::GameSettings::sArchiveKey[] = "fallback-archive";
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const char Config::GameSettings::sContentKey[] = "content";
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const char Config::GameSettings::sDirectoryKey[] = "data";
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namespace
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{
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QStringList reverse(QStringList values)
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{
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std::reverse(values.begin(), values.end());
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return values;
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}
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}
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Config::GameSettings::GameSettings(const Files::ConfigurationManager& cfg)
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: mCfgMgr(cfg)
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{
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}
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void Config::GameSettings::validatePaths()
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{
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QStringList paths = mSettings.values(QString("data"));
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Files::PathContainer dataDirs;
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for (const QString& path : paths)
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{
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dataDirs.emplace_back(Files::pathFromQString(path));
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}
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// Parse the data dirs to convert the tokenized paths
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mCfgMgr.processPaths(dataDirs, /*basePath=*/"");
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mDataDirs.clear();
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for (const auto& dataDir : dataDirs)
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{
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if (is_directory(dataDir))
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mDataDirs.append(Files::pathToQString(dataDir));
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}
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// Do the same for data-local
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QString local = mSettings.value(QString("data-local"));
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if (local.length() && local.at(0) == QChar('\"'))
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{
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local.remove(0, 1);
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local.chop(1);
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}
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if (local.isEmpty())
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return;
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dataDirs.clear();
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dataDirs.emplace_back(Files::pathFromQString(local));
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mCfgMgr.processPaths(dataDirs, /*basePath=*/"");
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if (!dataDirs.empty())
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{
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const auto& path = dataDirs.front();
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if (is_directory(path))
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mDataLocal = Files::pathToQString(path);
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}
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}
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std::filesystem::path Config::GameSettings::getGlobalDataDir() const
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{
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// global data dir may not exists if OpenMW is not installed (ie if run from build directory)
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const auto& path = mCfgMgr.getGlobalDataPath();
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if (std::filesystem::exists(path))
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return std::filesystem::canonical(path);
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return {};
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}
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QStringList Config::GameSettings::values(const QString& key, const QStringList& defaultValues) const
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{
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if (!mSettings.values(key).isEmpty())
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return mSettings.values(key);
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return defaultValues;
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}
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bool Config::GameSettings::readFile(QTextStream& stream, bool ignoreContent)
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{
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return readFile(stream, mSettings, ignoreContent);
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}
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bool Config::GameSettings::readUserFile(QTextStream& stream, bool ignoreContent)
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{
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return readFile(stream, mUserSettings, ignoreContent);
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}
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bool Config::GameSettings::readFile(QTextStream& stream, QMultiMap<QString, QString>& settings, bool ignoreContent)
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{
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QMultiMap<QString, QString> cache;
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QRegularExpression keyRe("^([^=]+)\\s*=\\s*(.+)$");
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while (!stream.atEnd())
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{
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QString line = stream.readLine();
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if (line.isEmpty() || line.startsWith("#"))
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continue;
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QRegularExpressionMatch match = keyRe.match(line);
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if (match.hasMatch())
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{
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QString key = match.captured(1).trimmed();
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QString value = match.captured(2).trimmed();
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// Don't remove composing entries
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if (key != QLatin1String("data") && key != QLatin1String("fallback-archive")
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&& key != QLatin1String("content") && key != QLatin1String("groundcover")
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&& key != QLatin1String("script-blacklist"))
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settings.remove(key);
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if (key == QLatin1String("data") || key == QLatin1String("data-local") || key == QLatin1String("resources")
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|| key == QLatin1String("load-savegame"))
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{
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// Path line (e.g. 'data=...'), so needs processing to deal with ampersands and quotes
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// The following is based on boost::io::detail::quoted_manip.hpp, but calling those functions did not
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// work as there are too may QStrings involved
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QChar delim = '\"';
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QChar escape = '&';
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if (value.at(0) == delim)
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{
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QString valueOriginal = value;
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value = "";
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for (QString::const_iterator it = valueOriginal.begin() + 1; it != valueOriginal.end(); ++it)
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{
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if (*it == escape)
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++it;
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else if (*it == delim)
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break;
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value += *it;
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}
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}
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}
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if (ignoreContent && (key == QLatin1String("content") || key == QLatin1String("data")))
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continue;
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QStringList values = cache.values(key);
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values.append(settings.values(key));
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if (!values.contains(value))
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{
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cache.insert(key, value);
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}
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}
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}
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if (settings.isEmpty())
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{
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settings = cache; // This is the first time we read a file
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validatePaths();
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return true;
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}
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// Merge the changed keys with those which didn't
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settings.unite(cache);
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validatePaths();
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return true;
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}
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bool Config::GameSettings::writeFile(QTextStream& stream)
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{
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// Iterate in reverse order to preserve insertion order
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auto i = mUserSettings.end();
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while (i != mUserSettings.begin())
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{
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i--;
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// path lines (e.g. 'data=...') need quotes and ampersands escaping to match how boost::filesystem::path uses
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// boost::io::quoted
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if (i.key() == QLatin1String("data") || i.key() == QLatin1String("data-local")
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|| i.key() == QLatin1String("resources") || i.key() == QLatin1String("load-savegame"))
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{
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stream << i.key() << "=";
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// The following is based on boost::io::detail::quoted_manip.hpp, but calling those functions did not work
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// as there are too may QStrings involved
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QChar delim = '\"';
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QChar escape = '&';
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QString string = i.value();
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stream << delim;
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for (auto& it : string)
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{
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if (it == delim || it == escape)
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stream << escape;
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stream << it;
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}
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stream << delim;
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stream << '\n';
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continue;
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}
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stream << i.key() << "=" << i.value() << "\n";
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}
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return true;
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}
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bool Config::GameSettings::isOrderedLine(const QString& line)
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{
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return line.contains(QRegularExpression("^\\s*fallback-archive\\s*="))
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|| line.contains(QRegularExpression("^\\s*fallback\\s*="))
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|| line.contains(QRegularExpression("^\\s*data\\s*="))
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|| line.contains(QRegularExpression("^\\s*data-local\\s*="))
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|| line.contains(QRegularExpression("^\\s*resources\\s*="))
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|| line.contains(QRegularExpression("^\\s*groundcover\\s*="))
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|| line.contains(QRegularExpression("^\\s*content\\s*="));
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}
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// Policy:
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//
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// - Always ignore a line beginning with '#' or empty lines; added above a config
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// entry.
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//
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// - If a line in file exists with matching key and first part of value (before ',',
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// '\n', etc) also matches, then replace the line with that of mUserSettings.
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// - else remove line
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//
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// - If there is no corresponding line in file, add at the end
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//
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// - Removed content items are saved as comments if the item had any comments.
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// Content items prepended with '##' are considered previously removed.
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//
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bool Config::GameSettings::writeFileWithComments(QFile& file)
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{
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QTextStream stream(&file);
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Misc::ensureUtf8Encoding(stream);
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// slurp
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std::vector<QString> fileCopy;
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QString line = stream.readLine();
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while (!line.isNull())
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{
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fileCopy.push_back(line);
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line = stream.readLine();
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}
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stream.seek(0);
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// empty file, no comments to keep
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if (fileCopy.empty())
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return writeFile(stream);
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// start
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// |
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// | +----------------------------------------------------------+
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// | | |
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// v v |
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// skip non-"ordered" lines (remove "ordered" lines) |
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// | ^ |
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// | | |
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// | non-"ordered" line, write saved comments |
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// | ^ |
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// v | |
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// blank or comment line, save in temp buffer <--------+ |
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// | | | |
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// | +------- comment line ------+ |
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// v (special processing '##') |
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// "ordered" line |
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// | |
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// v |
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// save in a separate map of comments keyed by "ordered" line |
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// | |
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// +----------------------------------------------------------+
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//
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//
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QRegularExpression settingRegex("^([^=]+)\\s*=\\s*([^,]+)(.*)$");
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std::vector<QString> comments;
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auto commentStart = fileCopy.end();
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std::map<QString, std::vector<QString>> commentsMap;
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for (auto iter = fileCopy.begin(); iter != fileCopy.end(); ++iter)
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{
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if (isOrderedLine(*iter))
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{
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// save in a separate map of comments keyed by "ordered" line
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if (!comments.empty())
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{
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QRegularExpressionMatch match = settingRegex.match(*iter);
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if (match.hasMatch())
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{
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commentsMap[match.captured(1) + "=" + match.captured(2)] = comments;
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comments.clear();
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commentStart = fileCopy.end();
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}
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// else do nothing, malformed line
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}
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*iter = QString(); // "ordered" lines to be removed later
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}
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else if ((*iter).isEmpty() || (*iter).contains(QRegularExpression("^\\s*#")))
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{
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// comment line, save in temp buffer
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if (comments.empty())
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commentStart = iter;
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// special removed content processing
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if ((*iter).contains(QRegularExpression("^##content\\s*=")))
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{
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if (!comments.empty())
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{
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commentsMap[*iter] = comments;
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comments.clear();
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commentStart = fileCopy.end();
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}
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}
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else
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comments.push_back(*iter);
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*iter = QString(); // assume to be deleted later
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}
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else
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{
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QRegularExpressionMatch match = settingRegex.match(*iter);
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// blank or non-"ordered" line, write saved comments
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if (!comments.empty() && match.hasMatch() && settingRegex.captureCount() >= 2
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&& mUserSettings.find(match.captured(1)) != mUserSettings.end())
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{
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if (commentStart == fileCopy.end())
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throw std::runtime_error(
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"Config::GameSettings: failed to parse settings - iterator is past of end of settings file");
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for (const auto& comment : comments)
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{
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*commentStart = comment;
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++commentStart;
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}
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comments.clear();
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commentStart = fileCopy.end();
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}
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// keep blank lines and non-"ordered" lines other than comments
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// look for a key in the line
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if (!match.hasMatch() || settingRegex.captureCount() < 2)
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{
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// no key or first part of value found in line, replace with a null string which
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// will be removed later
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*iter = QString();
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comments.clear();
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commentStart = fileCopy.end();
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continue;
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}
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// look for a matching key in user settings
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*iter = QString(); // assume no match
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QString key = match.captured(1);
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QString keyVal = match.captured(1) + "=" + match.captured(2);
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QMultiMap<QString, QString>::const_iterator i = mUserSettings.find(key);
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while (i != mUserSettings.end() && i.key() == key)
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{
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QString settingLine = i.key() + "=" + i.value();
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QRegularExpressionMatch keyMatch = settingRegex.match(settingLine);
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if (keyMatch.hasMatch())
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{
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if ((keyMatch.captured(1) + "=" + keyMatch.captured(2)) == keyVal)
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{
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*iter = settingLine;
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break;
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}
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}
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++i;
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}
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}
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}
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// comments at top of file
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for (auto& iter : fileCopy)
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{
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if (iter.isNull())
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continue;
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// Below is based on readFile() code, if that changes corresponding change may be
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// required (for example duplicates may be inserted if the rules don't match)
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if (/*(*iter).isEmpty() ||*/ iter.contains(QRegularExpression("^\\s*#")))
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{
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stream << iter << "\n";
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continue;
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}
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}
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// Iterate in reverse order to preserve insertion order
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QString settingLine;
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auto it = mUserSettings.end();
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while (it != mUserSettings.begin())
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{
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it--;
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if (it.key() == QLatin1String("data") || it.key() == QLatin1String("data-local")
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|| it.key() == QLatin1String("resources") || it.key() == QLatin1String("load-savegame"))
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{
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settingLine = it.key() + "=";
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// The following is based on boost::io::detail::quoted_manip.hpp, but calling those functions did not work
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// as there are too may QStrings involved
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QChar delim = '\"';
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QChar escape = '&';
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QString string = it.value();
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settingLine += delim;
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for (auto& iter : string)
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{
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if (iter == delim || iter == escape)
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settingLine += escape;
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settingLine += iter;
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}
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settingLine += delim;
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}
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else
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settingLine = it.key() + "=" + it.value();
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QRegularExpressionMatch match = settingRegex.match(settingLine);
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if (match.hasMatch())
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{
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auto i = commentsMap.find(match.captured(1) + "=" + match.captured(2));
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// check if previous removed content item with comments
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if (i == commentsMap.end())
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i = commentsMap.find("##" + match.captured(1) + "=" + match.captured(2));
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if (i != commentsMap.end())
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{
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std::vector<QString> cLines = i->second;
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for (const auto& cLine : cLines)
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stream << cLine << "\n";
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commentsMap.erase(i);
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}
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}
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stream << settingLine << "\n";
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}
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// flush any removed settings
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if (!commentsMap.empty())
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{
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auto i = commentsMap.begin();
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for (; i != commentsMap.end(); ++i)
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{
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if (i->first.contains(QRegularExpression("^\\s*content\\s*=")))
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{
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std::vector<QString> cLines = i->second;
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for (const auto& cLine : cLines)
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stream << cLine << "\n";
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// mark the content line entry for future preocessing
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stream << "##" << i->first << "\n";
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// commentsMap.erase(i);
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}
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}
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}
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// flush any end comments
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if (!comments.empty())
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{
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for (const auto& comment : comments)
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stream << comment << "\n";
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}
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file.resize(file.pos());
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return true;
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}
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bool Config::GameSettings::hasMaster()
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{
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bool result = false;
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QStringList content = mSettings.values(QString(Config::GameSettings::sContentKey));
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for (int i = 0; i < content.count(); ++i)
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{
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if (content.at(i).endsWith(QLatin1String(".omwgame"), Qt::CaseInsensitive)
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|| content.at(i).endsWith(QLatin1String(".esm"), Qt::CaseInsensitive))
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{
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result = true;
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break;
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}
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}
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return result;
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}
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void Config::GameSettings::setContentList(
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const QStringList& dirNames, const QStringList& archiveNames, const QStringList& fileNames)
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{
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auto const reset = [this](const char* key, const QStringList& list) {
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remove(key);
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for (auto const& item : list)
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setMultiValue(key, item);
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};
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reset(sDirectoryKey, dirNames);
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reset(sArchiveKey, archiveNames);
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reset(sContentKey, fileNames);
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}
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QStringList Config::GameSettings::getDataDirs() const
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{
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return reverse(mDataDirs);
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}
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QStringList Config::GameSettings::getArchiveList() const
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{
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// QMap returns multiple rows in LIFO order, so need to reverse
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return reverse(values(sArchiveKey));
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}
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QStringList Config::GameSettings::getContentList() const
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{
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// QMap returns multiple rows in LIFO order, so need to reverse
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return reverse(values(sContentKey));
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}
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void Config::GameSettings::clear()
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{
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mSettings.clear();
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mUserSettings.clear();
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mDataDirs.clear();
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mDataLocal.clear();
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}
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