mirror of
https://github.com/rwengine/openrw.git
synced 2024-11-07 11:22:45 +01:00
576 lines
21 KiB
C++
576 lines
21 KiB
C++
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#include "RWConfig.hpp"
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#include <iostream>
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#include <rw/debug.hpp>
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#include <boost/property_tree/ini_parser.hpp>
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#include <boost/property_tree/ptree.hpp>
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#ifdef RW_WINDOWS
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#include <Shlobj.h>
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#include <winerror.h>
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#include <platform/RWWindows.hpp>
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#endif
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namespace po = boost::program_options;
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namespace pt = boost::property_tree;
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namespace {
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po::options_description build_options() {
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std::array<po::options_description, RWArgumentParser::Category::COUNT_> descriptions =
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{{
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po::options_description{"Configuration options"},
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po::options_description{"Game actions"},
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po::options_description{"Input options"},
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po::options_description{"Window options"},
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po::options_description{"Developer options"},
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po::options_description{"General options"},
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}};
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#define RWARG(_RW_TYPE, _RW_NAME, _RW_CATEGORY, _RW_ARGMASK, _RW_ARGMETA, _RW_HELP) \
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do { \
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auto option_builder = descriptions[RWArgumentParser::Category::_RW_CATEGORY].add_options(); \
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if constexpr (std::is_same_v<bool, _RW_TYPE>) { \
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option_builder(_RW_ARGMASK, _RW_HELP); \
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} else { \
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option_builder(_RW_ARGMASK, po::value<_RW_TYPE>()->value_name(_RW_ARGMETA), _RW_HELP); \
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} \
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} while (0);
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#define RWCONFIGARG(_RW_TYPE, _RW_NAME, _RW_DEFAULT, _RW_CONFPATH, _RW_CATEGORY, _RW_ARGMASK, _RW_ARGMETA, _RW_HELP) \
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do { \
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if constexpr (std::is_same_v<bool, _RW_TYPE>) { \
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descriptions[RWArgumentParser::Category::_RW_CATEGORY].add_options()( \
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_RW_ARGMASK, _RW_HELP); \
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} else { \
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descriptions[RWArgumentParser::Category::_RW_CATEGORY].add_options()( \
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_RW_ARGMASK, po::value<_RW_TYPE>()->value_name(_RW_ARGMETA), _RW_HELP); \
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} \
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} while (0);
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#define RWARG_OPT(_RW_TYPE, _RW_NAME, _RW_CATEGORY, _RW_ARGMASK, _RW_ARGMETA, _RW_HELP) \
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RWCONFIGARG(_RW_TYPE, _RW_NAME, std::nullopt, nullptr, _RW_CATEGORY, _RW_ARGMASK, _RW_ARGMETA, _RW_HELP)
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#include "RWConfig.inc"
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#undef RWARG_OPT
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#undef RWCONFIGARG
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#undef RWARG
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auto& description = descriptions[0];
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for (auto i = 1u; i < descriptions.size(); ++i) {
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description.add(descriptions[i]);
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}
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return description;
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}
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}
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RWArgumentParser::RWArgumentParser() : _desc(build_options()) {
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}
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namespace {
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constexpr std::string_view arg_mask_to_key(std::string_view v) {
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size_t maxstart = 0u, maxsize = 0u;
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size_t start = 0u;
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size_t end = 0u;
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while (start < v.size()) {
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end = v.find(",", start);
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if (end == std::string_view::npos) {
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end = v.size();
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}
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if ((end - start) > maxsize) {
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maxstart = start;
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maxsize = end - start;
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}
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start = end + 1;
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}
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return v.substr(maxstart, maxsize);
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}
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}
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std::optional<RWArgConfigLayer> RWArgumentParser::parseArguments(int argc, const char* argv[]) const {
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po::variables_map vm;
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try {
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if (argc != 0) {
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po::store(po::command_line_parser(argc, argv).options(_desc).positional(po::positional_options_description{}).run(), vm);
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}
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po::notify(vm);
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} catch (po::error &ex) {
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std::cerr << "Error parsing arguments: " << ex.what() << std::endl;
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return std::nullopt;
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}
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RWArgConfigLayer layer;
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#define RWARG(_RW_TYPE, _RW_NAME, _RW_CATEGORY, _RW_ARGMASK, _RW_ARGMETA, _RW_HELP) \
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do { \
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const std::string key{arg_mask_to_key(_RW_ARGMASK)}; \
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layer._RW_NAME = vm.count(key) != 0u; \
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} while (0);
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#define RWCONFIGARG(_RW_TYPE, _RW_NAME, _RW_DEFAULT, _RW_CONFPATH, _RW_CATEGORY, _RW_ARGMASK, _RW_ARGMETA, _RW_HELP) \
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do { \
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const std::string key{arg_mask_to_key(_RW_ARGMASK)}; \
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if (vm.count(key)) { \
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layer._RW_NAME = vm[key].as<_RW_TYPE>(); \
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} \
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} while (0);
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#define RWARG_OPT(_RW_TYPE, _RW_NAME, _RW_CATEGORY, _RW_ARGMASK, _RW_ARGMETA, _RW_HELP) \
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do { \
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const std::string key{arg_mask_to_key(_RW_ARGMASK)}; \
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if (vm.count(key)) { \
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layer._RW_NAME = vm[key].as<_RW_TYPE>(); \
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} \
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} while (0);
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#include "RWConfig.inc"
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#undef RWARG_OPT
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#undef RWCONFIGARG
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#undef RWARG
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if (layer.noconfig && layer.configPath.has_value()) {
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std::cerr << "Cannot set config path and ask noconfig at the sametime.\n";
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return std::nullopt;
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}
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return layer;
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}
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std::ostream& RWArgumentParser::printHelp(std::ostream &os) const {
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return os << _desc;
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}
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RWConfigLayer buildDefaultConfigLayer() {
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RWConfigLayer layer;
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#define RWARG(...)
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#define RWCONFIGARG(_RW_TYPE, _RW_NAME, _RW_DEFAULT, _RW_CONFPATH, _RW_CATEGORY, _RW_ARGMASK, _RW_ARGMETA, _RW_HELP) \
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layer._RW_NAME = _RW_DEFAULT;
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#define RWARG_OPT(...)
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#include "RWConfig.inc"
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#undef RWARG_OPT
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#undef RWCONFIGARG
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#undef RWARG
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return layer;
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}
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static constexpr auto kConfigDirectoryName = "OpenRW";
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rwfs::path RWConfigParser::getDefaultConfigPath() {
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#if defined(RW_LINUX) || defined(RW_FREEBSD) || defined(RW_NETBSD) || \
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defined(RW_OPENBSD)
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char *config_home = getenv("XDG_CONFIG_HOME");
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if (config_home != nullptr) {
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return rwfs::path(config_home) / kConfigDirectoryName;
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}
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char *home = getenv("HOME");
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if (home != nullptr) {
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return rwfs::path(home) / ".config/" / kConfigDirectoryName;
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}
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#elif defined(RW_OSX)
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char *home = getenv("HOME");
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if (home)
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return rwfs::path(home) / "Library/Preferences/" / kConfigDirectoryName;
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#elif defined(RW_WINDOWS)
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wchar_t *widePath;
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auto res = SHGetKnownFolderPath(FOLDERID_RoamingAppData, KF_FLAG_DEFAULT,
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nullptr, &widePath);
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if (SUCCEEDED(res)) {
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auto utf8Path = wideStringToACP(widePath);
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return rwfs::path(utf8Path) / kConfigDirectoryName;
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}
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#else
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return rwfs::path();
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#endif
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// Well now we're stuck.
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RW_ERROR("No default config path found.");
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return rwfs::path();
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}
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namespace {
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void flatten_ptree_recursive(std::map<std::string, std::string> &map, const std::string &subkey, const pt::ptree &ptree) {
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for (const auto &[name, content] : ptree) {
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auto key = subkey + "." + name;
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map[key] = content.data();
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flatten_ptree_recursive(map, subkey + "." + name, content);
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}
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}
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std::map<std::string, std::string> flatten_ptree(const pt::ptree &ptree) {
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std::map<std::string, std::string> result;
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for (const auto &[name, content] : ptree) {
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flatten_ptree_recursive(result, name, content);
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}
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return result;
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}
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std::string stripComments(const std::string &str) {
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auto s = std::string(str, 0, str.find_first_of(";#"));
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return s.erase(s.find_last_not_of(" \n\r\t") + 1);
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}
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template <typename T>
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struct Translator {
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};
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template <>
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struct Translator<std::string> {
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using internal_type = std::string;
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using external_type = std::string;
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boost::optional<external_type> get_value(const internal_type &str) {
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return stripComments(str);
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}
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boost::optional<internal_type> put_value(const external_type &str) {
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return str;
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}
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};
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template <>
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struct Translator<bool> {
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using internal_type = std::string;
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using external_type = bool;
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boost::optional<external_type> get_value(const internal_type &str) {
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boost::optional<external_type> res;
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try {
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res = std::stoi(stripComments(str)) != 0;
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} catch (std::invalid_argument &) {
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}
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return res;
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}
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boost::optional<internal_type> put_value(const external_type &b) {
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return internal_type(b ? "1" : "0");
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}
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};
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template <>
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struct Translator<int> {
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using internal_type = std::string;
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using external_type = int;
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boost::optional<external_type> get_value(const internal_type &str) {
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boost::optional<external_type> res;
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try {
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res = std::stoi(stripComments(str));
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} catch (std::invalid_argument &) {
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}
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return res;
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}
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boost::optional<internal_type> put_value(const external_type &i) {
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return std::to_string(i);
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}
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};
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template <>
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struct Translator<float> {
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using internal_type = std::string;
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using external_type = float;
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boost::optional<external_type> get_value(const internal_type &str) {
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boost::optional<external_type> res;
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try {
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res = std::stof(stripComments(str));
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} catch (std::invalid_argument &) {
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}
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return res;
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}
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boost::optional<internal_type> put_value(const external_type &f) {
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return std::to_string(f);
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}
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};
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class TreeParser {
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template <typename T>
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using TGetFunction = std::function<const std::optional<T>(const RWConfigLayer &)>;
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template <typename T>
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using TSetFunction = std::function<void(RWConfigLayer &, const std::optional<T> &)>;
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public:
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TreeParser() = default;
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template <typename T, typename TString, typename TGetFunc = TGetFunction<T>, typename TSetFunc = TSetFunction<T>>
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void add_option(TString &&key, TGetFunc &&getFunc, TSetFunc &&setFunc) {
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_itemParsers.emplace_back(
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std::make_unique<TreeItemParserImpl<T>>(
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std::forward<TString>(key), std::forward<TGetFunc>(getFunc), std::forward<TSetFunc>(setFunc)));
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}
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RWConfigLayer to_layer(const pt::ptree &ptree, RWConfigParser::ParseResult &parseResult) const {
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RWConfigLayer layer;
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auto flattened_ptree = flatten_ptree(ptree);
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for (const auto &itemParser : _itemParsers) {
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try {
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itemParser->to_layer(layer, ptree);
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flattened_ptree.erase(itemParser->key());
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} catch (pt::ptree_bad_path &) {
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// bad path -> not found -> no-op / std::nullopt
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} catch (pt::ptree_bad_data &) {
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parseResult.failInvalidData(itemParser->key());
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}
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}
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parseResult.setUnknownData(flattened_ptree);
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return layer;
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}
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pt::ptree to_ptree(const RWConfigLayer &layer, RWConfigParser::ParseResult &parseResult) const {
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pt::ptree ptree;
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for (const auto &itemParser : _itemParsers) {
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try {
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itemParser->to_ptree(ptree, layer);
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} catch (pt::ptree_bad_path &) {
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// bad path -> path has wrong format
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parseResult.failInvalidData(itemParser->key());
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} catch (pt::ptree_bad_data &) {
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parseResult.failInvalidData(itemParser->key());
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}
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}
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return ptree;
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}
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private:
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class TreeItemParser {
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protected:
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const std::string _key;
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template <typename TString>
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TreeItemParser(TString &&key) : _key(key) {}
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public:
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virtual ~TreeItemParser() = default;
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virtual void to_layer(RWConfigLayer &layer, const pt::ptree &ptree) const = 0;
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virtual void to_ptree(pt::ptree &ptree, const RWConfigLayer &layer) const = 0;
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const std::string &key() const {
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return _key;
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}
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};
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template <typename T>
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class TreeItemParserImpl : public TreeItemParser {
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public:
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template <typename TString>
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TreeItemParserImpl(TString &&key, TGetFunction<T> &&getFunction, TSetFunction<T> &&setFunction)
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: TreeItemParser(std::forward<TString>(key))
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, _getFunction(getFunction)
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, _setFunction(setFunction) {
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}
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~TreeItemParserImpl() override = default;
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TGetFunction<T> _getFunction;
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TSetFunction<T> _setFunction;
|
||
|
|
void to_layer(RWConfigLayer &layer, const pt::ptree &ptree) const override {
|
||
|
|
Translator<T> translator{};
|
||
|
|
auto value = ptree.get<T>(_key, translator);
|
||
|
|
auto stl_optional = std::optional<T>(value);
|
||
|
|
_setFunction(layer, stl_optional);
|
||
|
|
}
|
||
|
|
void to_ptree(pt::ptree &ptree, const RWConfigLayer &layer) const override {
|
||
|
|
Translator<T> translator{};
|
||
|
|
const auto stl_optional = _getFunction(layer);
|
||
|
|
if (stl_optional.has_value()) {
|
||
|
|
T value = *stl_optional;
|
||
|
|
ptree.put(_key, value, translator);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
std::vector<std::unique_ptr<TreeItemParser>> _itemParsers;
|
||
|
|
};
|
||
|
|
|
||
|
|
TreeParser buildTreeParser() {
|
||
|
|
TreeParser treeParser;
|
||
|
|
#define RWCONFIGARG(_RW_TYPE, _RW_NAME, _RW_DEFAULT, _RW_CONFPATH, _RW_CATEGORY, _RW_ARGMASK, _RW_ARGMETA, _RW_HELP) \
|
||
|
|
treeParser.add_option<_RW_TYPE>( \
|
||
|
|
_RW_CONFPATH, \
|
||
|
|
[](const RWConfigLayer &layer) {return layer._RW_NAME;}, \
|
||
|
|
[](RWConfigLayer &layer, const std::optional<_RW_TYPE> &value) {layer._RW_NAME = value;} \
|
||
|
|
);
|
||
|
|
#define RWARG(...)
|
||
|
|
#define RWARG_OPT(...)
|
||
|
|
|
||
|
|
#include "RWConfig.inc"
|
||
|
|
|
||
|
|
#undef RWCONFIGARG
|
||
|
|
#undef RWARG
|
||
|
|
#undef RWARG_OPT
|
||
|
|
return treeParser;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
std::tuple<RWConfigLayer, RWConfigParser::ParseResult> RWConfigParser::loadFile(const rwfs::path &path) const {
|
||
|
|
ParseResult parseResult(path.string(), "<internal>");
|
||
|
|
|
||
|
|
auto treeParser = buildTreeParser();
|
||
|
|
|
||
|
|
RWConfigLayer layer;
|
||
|
|
try {
|
||
|
|
pt::ptree ptree;
|
||
|
|
pt::read_ini(path.string(), ptree);
|
||
|
|
layer = treeParser.to_layer(ptree, parseResult);
|
||
|
|
} catch (pt::ini_parser_error &e) {
|
||
|
|
// Catches illegal input files (nonsensical input, duplicate keys)
|
||
|
|
parseResult.failInputFile(e.line(), e.message());
|
||
|
|
RW_MESSAGE(e.what());
|
||
|
|
}
|
||
|
|
|
||
|
|
if (parseResult.type() == ParseResult::UNINITIALIZED) {
|
||
|
|
parseResult.markGood();
|
||
|
|
}
|
||
|
|
|
||
|
|
return std::make_tuple(layer, parseResult);
|
||
|
|
}
|
||
|
|
|
||
|
|
RWConfigParser::ParseResult RWConfigParser::saveFile(const rwfs::path &path, const RWConfigLayer &layer, const std::map<std::string, std::string> &extra) const {
|
||
|
|
ParseResult parseResult("<internal>", path.string());
|
||
|
|
|
||
|
|
auto treeParser = buildTreeParser();
|
||
|
|
|
||
|
|
try {
|
||
|
|
auto ptree = treeParser.to_ptree(layer, parseResult);
|
||
|
|
for (const auto &[key, value] : extra) {
|
||
|
|
if (ptree.count(key) != 0u) {
|
||
|
|
parseResult.failInvalidData(key);
|
||
|
|
}
|
||
|
|
ptree.put(key, value);
|
||
|
|
}
|
||
|
|
pt::write_ini(path.string(), ptree);
|
||
|
|
} catch (pt::ini_parser_error &e) {
|
||
|
|
parseResult.failOutputFile(e.line(), e.message());
|
||
|
|
}
|
||
|
|
|
||
|
|
if (parseResult.type() == ParseResult::UNINITIALIZED) {
|
||
|
|
parseResult.markGood();
|
||
|
|
}
|
||
|
|
|
||
|
|
return parseResult;
|
||
|
|
}
|
||
|
|
|
||
|
|
RWConfigParser::ParseResult RWConfigParser::saveFile(const rwfs::path &path, const RWConfigLayer &layer) const {
|
||
|
|
ParseResult parseResult("<internal>", path.string());
|
||
|
|
|
||
|
|
auto treeParser = buildTreeParser();
|
||
|
|
|
||
|
|
try {
|
||
|
|
auto ptree = treeParser.to_ptree(layer, parseResult);
|
||
|
|
pt::write_ini(path.string(), ptree);
|
||
|
|
} catch (pt::ini_parser_error &e) {
|
||
|
|
parseResult.failOutputFile(e.line(), e.message());
|
||
|
|
}
|
||
|
|
|
||
|
|
if (parseResult.type() == ParseResult::UNINITIALIZED) {
|
||
|
|
parseResult.markGood();
|
||
|
|
}
|
||
|
|
|
||
|
|
return parseResult;
|
||
|
|
}
|
||
|
|
|
||
|
|
std::tuple<std::string, RWConfigParser::ParseResult> RWConfigParser::layerToString(const RWConfigLayer &layer) const {
|
||
|
|
ParseResult parseResult("<internal>", "<string>");
|
||
|
|
|
||
|
|
auto treeParser = buildTreeParser();
|
||
|
|
|
||
|
|
std::string result;
|
||
|
|
try {
|
||
|
|
auto ptree = treeParser.to_ptree(layer, parseResult);
|
||
|
|
std::ostringstream oss;
|
||
|
|
pt::write_ini(oss, ptree);
|
||
|
|
result = oss.str();
|
||
|
|
} catch (pt::ini_parser_error &e) {
|
||
|
|
parseResult.failOutputFile(e.line(), e.message());
|
||
|
|
}
|
||
|
|
|
||
|
|
if (parseResult.type() == ParseResult::UNINITIALIZED) {
|
||
|
|
parseResult.markGood();
|
||
|
|
}
|
||
|
|
|
||
|
|
return std::make_tuple(result, parseResult);
|
||
|
|
}
|
||
|
|
|
||
|
|
RWConfigParser::ParseResult::ParseResult(const std::string &source, const std::string &destination)
|
||
|
|
: m_result(ErrorType::UNINITIALIZED)
|
||
|
|
, m_inputfilename(source)
|
||
|
|
, m_outputfilename(destination) {
|
||
|
|
}
|
||
|
|
|
||
|
|
RWConfigParser::ParseResult::ErrorType RWConfigParser::ParseResult::type() const {
|
||
|
|
return this->m_result;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool RWConfigParser::ParseResult::isValid() const {
|
||
|
|
return this->type() == ErrorType::GOOD;
|
||
|
|
}
|
||
|
|
|
||
|
|
void RWConfigParser::ParseResult::failInputFile(size_t line,
|
||
|
|
const std::string &message) {
|
||
|
|
this->m_result = ParseResult::ErrorType::INVALIDINPUTFILE;
|
||
|
|
this->m_line = line;
|
||
|
|
this->m_message = message;
|
||
|
|
}
|
||
|
|
|
||
|
|
void RWConfigParser::ParseResult::markGood() {
|
||
|
|
this->m_result = ParseResult::ErrorType::GOOD;
|
||
|
|
}
|
||
|
|
|
||
|
|
void RWConfigParser::ParseResult::failInvalidData(const std::string &key) {
|
||
|
|
this->m_result = ParseResult::ErrorType::INVALIDCONTENT;
|
||
|
|
this->m_keys_invalidData.push_back(key);
|
||
|
|
}
|
||
|
|
|
||
|
|
void RWConfigParser::ParseResult::failOutputFile(size_t line,
|
||
|
|
const std::string &message) {
|
||
|
|
this->m_result = ParseResult::ErrorType::INVALIDOUTPUTFILE;
|
||
|
|
this->m_line = line;
|
||
|
|
this->m_message = message;
|
||
|
|
}
|
||
|
|
|
||
|
|
const std::vector<std::string> &RWConfigParser::ParseResult::getKeysInvalidData()
|
||
|
|
const {
|
||
|
|
return this->m_keys_invalidData;
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string RWConfigParser::ParseResult::what() const {
|
||
|
|
std::ostringstream oss;
|
||
|
|
switch (this->m_result) {
|
||
|
|
case ErrorType::UNINITIALIZED:
|
||
|
|
oss << "Parsing was skipped or did not finish.";
|
||
|
|
break;
|
||
|
|
case ErrorType::GOOD:
|
||
|
|
oss << "Parsing completed without errors.";
|
||
|
|
break;
|
||
|
|
case ErrorType::INVALIDINPUTFILE:
|
||
|
|
oss << "Error while reading \"" << this->m_inputfilename
|
||
|
|
<< "\":" << this->m_line << ":\n"
|
||
|
|
<< this->m_message << ".";
|
||
|
|
break;
|
||
|
|
case ErrorType::INVALIDOUTPUTFILE:
|
||
|
|
oss << "Error while writing \"" << this->m_inputfilename
|
||
|
|
<< "\":" << this->m_line << ":\n"
|
||
|
|
<< this->m_message << ".";
|
||
|
|
break;
|
||
|
|
case ErrorType::INVALIDCONTENT:
|
||
|
|
oss << "Error while parsing \"" << this->m_inputfilename << "\".";
|
||
|
|
if (!this->m_keys_invalidData.empty()) {
|
||
|
|
oss << "\nKeys that contain invalid data:";
|
||
|
|
for (auto &key : this->m_keys_invalidData) {
|
||
|
|
oss << "\n - " << key;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
oss << "Unknown error.";
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (!this->m_unknownData.empty()) {
|
||
|
|
oss << "\nUnknown configuration keys:";
|
||
|
|
for (const auto &[key, value] : m_unknownData) {
|
||
|
|
RW_UNUSED(value);
|
||
|
|
oss << "\n - " << key;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return oss.str();
|
||
|
|
}
|
||
|
|
|
||
|
|
const std::map<std::string, std::string>
|
||
|
|
&RWConfigParser::ParseResult::getUnknownData() const {
|
||
|
|
return this->m_unknownData;
|
||
|
|
}
|
||
|
|
|
||
|
|
void RWConfigParser::ParseResult::setUnknownData(
|
||
|
|
const std::map<std::string, std::string> &unknownData) {
|
||
|
|
this->m_unknownData = unknownData;
|
||
|
|
}
|