commandline_parser.hpp

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//------------------------------------------------------------------------------
//  The @header2, @begin_table, @item3 and @end_table commands are custom
//  defined commands in Doxygen.in. They are defined under ALIASES. For the page
//  created here, the 80 column limit is exceeded. Arguments of aliases are
//  separated by ','. If you intended ',' to be a string you must use an escaped
//  comma '\,'.
//
//------------------------------------------------------------------------------
//******************************************************************************
//******************************************************************************
 
#ifndef commandline_parser_hpp
#define commandline_parser_hpp
 
#include <iostream>
#include <map>
#include <string>
#include <sstream>
 
typedef std::map<std::string, std::string> arg_map;
typedef std::pair<std::string, std::string> arg_element;
 
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
class commandline_parser {
public:
    const arg_map commands;
 
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
    static arg_map parse_commands(const size_t argc, const char * argv[]) {
        if (argc == 0) {
            help();
        }
 
        arg_map commands;
 
 
        for (size_t i = 1; i < argc; i++) {
            std::string arg(argv[i]);
 
            if (arg == "-h") {
                help();
            } else {
                size_t eqpos = arg.find('=');
                if (eqpos != std::string::npos) {
                    std::string key = arg.substr(0, eqpos);
                    std::string value = arg.substr(eqpos + 1, std::string::npos);
 
                    commands.insert(arg_element(key, value));
                } else {
                    commands.insert(arg_element(arg, ""));
                }
            }
        }
 
        return commands;
    }
 
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
    commandline_parser(const size_t argc, const char * argv[]) :
    commands(parse_commands(argc, argv)) {}
 
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
    bool is_set(const std::string &key) const {
        return commands.find(key) != commands.end();
    }
 
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
    template<typename TYPE>
    TYPE get(const std::string &key) const {
        if (!is_set(key)) {
            help();
        }
 
        std::stringstream value_stream(commands.at(key));
        TYPE temp;
        value_stream >> temp;
 
        return temp;
    }
 
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
    static void help() {
//                   "                                        ''                                      "
        std::cout << "                                                                                " << std::endl;
        std::cout << "                                    SIESTA TEST                                 " << std::endl;
        std::cout << "                                                                                " << std::endl;
        std::cout << "Usage: xsiesta_test [-arg][=option] ...                                         " << std::endl;
        std::cout << "                                                                                " << std::endl;
        std::cout << "Options:                                                                        " << std::endl;
        std::cout << "All options are displayes as [arg][takesoption][Discription]                    " << std::endl;
        std::cout << "  -h            N Display this information.                                     " << std::endl;
        std::cout << "                                                                                " << std::endl;
        std::cout << "  -wout_file    Y Path to the VMEC wout file.                                   " << std::endl;
        std::cout << "                                                                                " << std::endl;
        std::cout << "  -restart_file Y Path to the SIESTA restart file.                              " << std::endl;
        std::cout << "                                                                                " << std::endl;
        std::cout << "  -test_name    Y Name of the test to run.                                      " << std::endl;
        std::cout << "                                                                                " << std::endl;
        std::cout << "  -tol          Y Tolarance value.                                              " << std::endl;
        std::cout << "                                                                                " << std::endl;
        std::cout << "  -min          Y Minimum radial value.                                         " << std::endl;
        std::cout << "                                                                                " << std::endl;
        std::cout << "  -max          Y Maximum radial value.                                         " << std::endl;
        std::cout << "                                                                                " << std::endl;
        std::cout << "  -relative     N Use relative error.                                           " << std::endl;
        std::cout << "                                                                                " << std::endl;
        std::cout << "  -dump         N Dump values to the screen.                                    " << std::endl;
        std::cout << "                                                                                " << std::endl;
        std::cout << "  -u            Y Poloidal angle to dump.                                       " << std::endl;
        std::cout << "                                                                                " << std::endl;
        std::cout << "  -v            Y Toroidal angle to dump..                                      " << std::endl;
        std::cout << "                                                                                " << std::endl;
        std::cout << std::endl;
 
        exit(0);
    }
};
 
#endif