diff options
Diffstat (limited to 'utils/command_line.hpp')
-rw-r--r-- | utils/command_line.hpp | 44 |
1 files changed, 14 insertions, 30 deletions
diff --git a/utils/command_line.hpp b/utils/command_line.hpp index 352c210..c991e4a 100644 --- a/utils/command_line.hpp +++ b/utils/command_line.hpp @@ -15,35 +15,25 @@ #include <ostream> #include <string> -class SettingsParser -{ +class SettingsParser { public: - explicit SettingsParser(const std::string& argv0) - : prog_name{extract_filename(argv0)} - { - visible.add_options() - ("help,h", - "show this message and exit"); + explicit SettingsParser(const std::string& argv0) : prog_name{extract_filename(argv0)} { + visible.add_options()("help,h", "show this message and exit"); } virtual ~SettingsParser() = default; - virtual const char* get_short_description() const - { - return "[--option VALUE]..."; - } + virtual const char* get_short_description() const { return "[--option VALUE]..."; } - virtual void parse(int argc, char* argv[]) - { + virtual void parse(int argc, char* argv[]) { boost::program_options::options_description all; all.add(hidden).add(visible); boost::program_options::variables_map vm; - boost::program_options::store( - boost::program_options::command_line_parser{argc, argv} - .options(all) - .positional(positional) - .run(), - vm); + boost::program_options::store(boost::program_options::command_line_parser{argc, argv} + .options(all) + .positional(positional) + .run(), + vm); if (vm.count("help")) exit_with_usage = true; else @@ -52,13 +42,9 @@ public: bool exit_with_usage = false; - void usage() const - { - std::cout << *this; - } + void usage() const { std::cout << *this; } - void usage_error(const std::exception& e) const - { + void usage_error(const std::exception& e) const { std::cerr << "usage error: " << e.what() << '\n'; std::cerr << *this; } @@ -69,15 +55,13 @@ protected: boost::program_options::positional_options_description positional; private: - static std::string extract_filename(const std::string& path) - { + static std::string extract_filename(const std::string& path) { return boost::filesystem::path{path}.filename().string(); } const std::string prog_name; - friend std::ostream& operator<<(std::ostream& os, const SettingsParser& parser) - { + friend std::ostream& operator<<(std::ostream& os, const SettingsParser& parser) { const auto short_descr = parser.get_short_description(); os << "usage: " << parser.prog_name << ' ' << short_descr << '\n'; os << parser.visible; |