Function IniLoadSettings

src/settings.cpp:620–659

* Load values from a group of an IniFile structure into the internal representation * @param ini pointer to IniFile structure that holds administrative information * @param settings_table table with SettingDesc structures whose internally pointed variables will * be given values * @param grpname the group of the IniFile to search in for the new values * @param object pointer to the obj

 * @param only_startup load only the startup settings set
 */
static void IniLoadSettings(IniFile &ini, const SettingTable &settings_table, std::string_view grpname, void *object, bool only_startup)
{
	const IniGroup *group;
	const IniGroup *group_def = ini.GetGroup(grpname);

	for (auto &desc : settings_table) {
		const SettingDesc *sd = GetSettingDesc(desc);
		if (!SlIsObjectCurrentlyValid(sd->save.version_from, sd->save.version_to)) continue;
		if (sd->startup != only_startup) continue;

		/* For settings.xx.yy load the settings from [xx] yy = ? */
		std::string s{ sd->GetName() };
		auto sc = s.find('.');
		if (sc != std::string::npos) {
			group = ini.GetGroup(s.substr(0, sc));
			if (group == nullptr) group = group_def;
			s = s.substr(sc + 1);
		} else {
			group = group_def;
		}

		const IniItem *item = nullptr;
		if (group != nullptr) item = group->GetItem(s);
		if (item == nullptr && group != group_def && group_def != nullptr) {
			/* For settings.xx.yy load the settings from [settings] yy = ? in case the previous
			 * did not exist (e.g. loading old config files with a [settings] section */
			item = group_def->GetItem(s);
		}
		if (item == nullptr) {
			/* For settings.xx.zz.yy load the settings from [zz] yy = ? in case the previous
			 * did not exist (e.g. loading old config files with a [yapf] section */
			sc = s.find('.');
			if (sc != std::string::npos) {
				if (group = ini.GetGroup(s.substr(0, sc)); group != nullptr) item = group->GetItem(s.substr(sc + 1));
			}
		}

		sd->ParseValue(item, object);
	}
}

void IntSettingDesc::ParseValue(const IniItem *item, void *object) const
{