C++ c++;增强程序选项允许长-短选项
我正在尝试使用boost(版本1.46)允许“长短”选项。我的印象是,启用“伪装”增强样式将允许这样的事情发生。鉴于此代码:C++ c++;增强程序选项允许长-短选项,c++,boost,arguments,options,boost-program-options,C++,Boost,Arguments,Options,Boost Program Options,我正在尝试使用boost(版本1.46)允许“长短”选项。我的印象是,启用“伪装”增强样式将允许这样的事情发生。鉴于此代码: // Declare the supported options. boost::program_options::options_description desc( "Allowed options" ); desc.add_options() ( "help,h", "produce help message" ) ( "RunTimeE,
// Declare the supported options.
boost::program_options::options_description desc( "Allowed options" );
desc.add_options()
( "help,h", "produce help message" )
( "RunTimeE,rtttt", boost::program_options::value<std::string>(), "RunTimeE Version" )
;
boost::program_options::variables_map vm;
boost::program_options::store( boost::program_options::command_line_parser( argc, argv )
.options( desc )
.style( boost::program_options::command_line_style::unix_style
| boost::program_options::command_line_style::allow_long_disguise )
.run(),
vm );
boost::program_options::notify( vm );
if (vm.count("help")) {
cout << desc << "\n";
return 1;
}
if (vm.count("RunTimeE")) {
cout << vm["RunTimeE"].as<std::string>() << endl;
return 1;
}
但我希望它能产生:
./output --help
Allowed options:
-h [ --help ] produce help message
-rtttt [ --RunTimeE ] arg RunTimeE Version
有人能帮忙吗
谢谢。创建两个长选项是一个选项吗 如果您认为在变量映射中有两个值与同一设置关联不好,请参考同一设置: 输出:
echo ------; ./a.out -h
echo ------; ./a.out -rtttt asdasdads
echo ------; ./a.out -RunTimeE qwe7
echo ------; ./a.out --rtttt 99
------
Allowed options:
-h [ --help ] produce help message
--RunTimeE arg RunTimeE Version
--rtttt arg RunTimeE Version
------
vm[rtttt]: asdasdads
optRunTimeE: asdasdads
------
vm[RunTimeE]: qwe7
optRunTimeE: qwe7
------
vm[rtttt]: 99
optRunTimeE: 99
清单:
#include <boost/program_options.hpp>
#include <iostream>
namespace po = boost::program_options;
int main(int argc, char **argv) {
// Declare the supported options.
boost::program_options::options_description desc("Allowed options");
std::string optRunTimeE;
desc.add_options()
("help,h", "produce help message")
("RunTimeE", boost::program_options::value<std::string>(&optRunTimeE), "RunTimeE Version")
("rtttt", boost::program_options::value<std::string>(&optRunTimeE), "RunTimeE Version")
;
boost::program_options::variables_map vm;
boost::program_options::store(
boost::program_options::command_line_parser(argc, argv)
.options(desc)
.style(
boost::program_options::command_line_style::unix_style |
boost::program_options::command_line_style::allow_long_disguise)
.run(),
vm);
boost::program_options::notify(vm);
if (vm.count("help")) {
std::cout << desc << "\n";
return 1;
}
if (vm.count("RunTimeE")) std::cout << "vm[RunTimeE]: " << vm["RunTimeE"].as<std::string>() << std::endl;
if (vm.count("rtttt")) std::cout << "vm[rtttt]: " << vm["rtttt"].as<std::string>() << std::endl;
std::cout << "optRunTimeE: " << optRunTimeE << std::endl;
}
#包括
#包括
名称空间po=boost::program\u选项;
int main(int argc,字符**argv){
//声明支持的选项。
boost::program_options::options_description desc(“允许的选项”);
std::字符串optRunTimeE;
说明添加选项()
(“帮助,h”,“生成帮助消息”)
(“运行时”,boost::program_options::value(&optRunTimeE),“运行时版本”)
(“rtttt”,boost::program_options::value(&optRunTimeE),“运行时版本”)
;
boost::程序选项::变量映射虚拟机;
boost::program_options::store(
boost::程序选项::命令行解析器(argc、argv)
.选项(描述)
.风格(
boost::程序选项::命令行样式::unix样式|
boost::程序选项::命令行样式::允许长伪装)
.run(),
vm);
boost::program_options::notify(vm);
if(vm.count(“帮助”)){
std::我不能确定不写自己的就可以这样做。您正在指定一个长选项RunTimeE
和一个短选项rtttt
,但是短选项根据定义只有一个字符。您可以通过指定allow\u long\u converge
将长选项与一个破折号一起使用,但我看不出这允许您使用两个长选项。事实上,在一个长选项和一个短选项上有两个长选项有什么意义?这不适用于bool开关:po::bool_开关()->默认值(false)
。您必须根据每个标志分别处理它们,并决定如何处理标志复制/交叉点。这就要求在boost代码之外增加一个开销代码。@观察得很好。这里有一个解决方法,它不是太不雅观,通过替换默认通知程序:
#include <boost/program_options.hpp>
#include <iostream>
namespace po = boost::program_options;
int main(int argc, char **argv) {
// Declare the supported options.
boost::program_options::options_description desc("Allowed options");
std::string optRunTimeE;
desc.add_options()
("help,h", "produce help message")
("RunTimeE", boost::program_options::value<std::string>(&optRunTimeE), "RunTimeE Version")
("rtttt", boost::program_options::value<std::string>(&optRunTimeE), "RunTimeE Version")
;
boost::program_options::variables_map vm;
boost::program_options::store(
boost::program_options::command_line_parser(argc, argv)
.options(desc)
.style(
boost::program_options::command_line_style::unix_style |
boost::program_options::command_line_style::allow_long_disguise)
.run(),
vm);
boost::program_options::notify(vm);
if (vm.count("help")) {
std::cout << desc << "\n";
return 1;
}
if (vm.count("RunTimeE")) std::cout << "vm[RunTimeE]: " << vm["RunTimeE"].as<std::string>() << std::endl;
if (vm.count("rtttt")) std::cout << "vm[rtttt]: " << vm["rtttt"].as<std::string>() << std::endl;
std::cout << "optRunTimeE: " << optRunTimeE << std::endl;
}