alpar@85: /* -*- C++ -*-
alpar@85:  *
alpar@85:  * This file is a part of LEMON, a generic C++ optimization library
alpar@85:  *
alpar@85:  * Copyright (C) 2003-2008
alpar@85:  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
alpar@85:  * (Egervary Research Group on Combinatorial Optimization, EGRES).
alpar@85:  *
alpar@85:  * Permission to use, modify and distribute this software is granted
alpar@85:  * provided that this copyright notice appears in all copies. For
alpar@85:  * precise terms see the accompanying LICENSE file.
alpar@85:  *
alpar@85:  * This software is provided "AS IS" with no warranty of any kind,
alpar@85:  * express or implied, and with no claim as to its suitability for any
alpar@85:  * purpose.
alpar@85:  *
alpar@85:  */
alpar@85: 
alpar@85: ///\ingroup demos
alpar@85: ///\file
alpar@85: ///\brief Argument parser demo
alpar@85: ///
kpeter@88: /// This example shows how the argument parser can be used.
alpar@85: ///
kpeter@88: /// \include arg_parser_demo.cc
alpar@85: 
alpar@85: #include <lemon/arg_parser.h>
alpar@85: 
alpar@85: using namespace lemon;
alpar@85: int main(int argc, const char **argv)
alpar@85: {
alpar@85:   ArgParser ap(argc,argv);
alpar@85:   int i;
alpar@85:   std::string s;
alpar@85:   double d;
alpar@85:   bool b,sil;
alpar@85:   bool g1,g2,g3;
kpeter@88:   ap.refOption("n", "An integer input.", i, true)
kpeter@88:     .refOption("val", "A double input.", d)
alpar@128:     .doubleOption("val2", "A double input.", d)
alpar@85:     .synonym("vals","val")
kpeter@88:     .refOption("name", "A string input.", s)
kpeter@88:     .refOption("f", "A switch.", b)
alpar@85:     .refOption("nohelp", "", sil)
kpeter@88:     .refOption("gra","Choice A",g1)
kpeter@88:     .refOption("grb","Choice B",g2)
kpeter@88:     .refOption("grc","Choice C",g3)
alpar@85:     .optionGroup("gr","gra")
alpar@137:     .optionGroup("gr","grb")
alpar@85:     .optionGroup("gr","grc")
alpar@85:     .mandatoryGroup("gr")
alpar@85:     .onlyOneGroup("gr")
kpeter@88:     .other("infile","The input file.")
alpar@85:     .other("...");
alpar@85:   
alpar@85:   ap.parse();
alpar@85: 
alpar@85:   std::cout << "Parameters of '" << ap.commandName() << "':\n";
alpar@85: 
alpar@85:   if(ap.given("n")) std::cout << "  Value of -n: " << i << std::endl;
alpar@85:   if(ap.given("val")) std::cout << "  Value of -val: " << d << std::endl;
alpar@85:   if(ap.given("name")) std::cout << "  Value of -name: " << s << std::endl;
alpar@85:   if(ap.given("f")) std::cout << "  -f is given\n";
alpar@85:   if(ap.given("nohelp")) std::cout << "  Value of -nohelp: " << sil << std::endl;
kpeter@88:   if(ap.given("gra")) std::cout << "  -gra is given\n";
kpeter@88:   if(ap.given("grb")) std::cout << "  -grb is given\n";
kpeter@88:   if(ap.given("grc")) std::cout << "  -grc is given\n";
kpeter@88:                                      
alpar@85:   switch(ap.files().size()) {
alpar@85:   case 0:
alpar@85:     std::cout << "  No file argument was given.\n";
alpar@85:     break;
alpar@85:   case 1:
alpar@85:     std::cout << "  1 file argument was given. It is:\n";
alpar@85:     break;
alpar@85:   default:
alpar@85:     std::cout << "  "
alpar@85: 	      << ap.files().size() << " file arguments were given. They are:\n";
alpar@85:   }
alpar@85:   for(unsigned int i=0;i<ap.files().size();++i)
alpar@85:     std::cout << "    '" << ap.files()[i] << "'\n";
alpar@85:   
alpar@85: }