alpar@2391: /* -*- C++ -*-
alpar@2391:  *
alpar@2391:  * This file is a part of LEMON, a generic C++ optimization library
alpar@2391:  *
alpar@2553:  * Copyright (C) 2003-2008
alpar@2391:  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
alpar@2391:  * (Egervary Research Group on Combinatorial Optimization, EGRES).
alpar@2391:  *
alpar@2391:  * Permission to use, modify and distribute this software is granted
alpar@2391:  * provided that this copyright notice appears in all copies. For
alpar@2391:  * precise terms see the accompanying LICENSE file.
alpar@2391:  *
alpar@2391:  * This software is provided "AS IS" with no warranty of any kind,
alpar@2391:  * express or implied, and with no claim as to its suitability for any
alpar@2391:  * purpose.
alpar@2391:  *
alpar@2391:  */
alpar@2391: 
deba@2492: ///\ingroup demos
deba@2492: ///\file
deba@2492: ///\brief Argument parser demo
deba@2492: ///
deba@2492: /// This example shows how can the argument parser used.
deba@2492: ///
deba@2492: /// \include arg_parser.cc
deba@2492: 
alpar@2389: #include <lemon/arg_parser.h>
alpar@2389: 
alpar@2389: using namespace lemon;
deba@2411: int main(int argc, const char **argv)
alpar@2389: {
alpar@2389:   ArgParser ap(argc,argv);
alpar@2389:   int i;
alpar@2389:   std::string s;
alpar@2389:   double d;
alpar@2389:   bool b,sil;
alpar@2389:   bool g1,g2,g3;
alpar@2402:   ap.refOption("n", "an integer input", i, true)
alpar@2402:     .refOption("val", "a double input", d)
alpar@2389:     .synonym("vals","val")
alpar@2402:     .refOption("name", "a string input", s)
alpar@2402:     .refOption("f", "a switch", b)
alpar@2402:     .refOption("nohelp", "", sil)
alpar@2402:     .refOption("gra","Choise A",g1)
alpar@2402:     .refOption("grb","Choise B",g2)
alpar@2402:     .refOption("grc","Choise C",g3)
alpar@2389:     .optionGroup("gr","gra")
alpar@2389:     .optionGroup("gr","grb")
alpar@2389:     .optionGroup("gr","grc")
alpar@2389:     .mandatoryGroup("gr")
alpar@2389:     .onlyOneGroup("gr")
alpar@2389:     .other("infile","The input file")
alpar@2389:     .other("...");
alpar@2389:   
alpar@2389:   ap.parse();
alpar@2389: 
alpar@2389:   std::cout << "Parameters of '" << ap.commandName() << "':\n";
alpar@2389: 
alpar@2389:   if(ap.given("n")) std::cout << "  Value of -n: " << i << std::endl;
alpar@2389:   if(ap.given("val")) std::cout << "  Value of -val: " << d << std::endl;
alpar@2389:   if(ap.given("name")) std::cout << "  Value of -name: " << s << std::endl;
alpar@2389:   if(ap.given("f")) std::cout << "  -f is given\n";
alpar@2389:   if(ap.given("nohelp")) std::cout << "  Value of -nohelp: " << sil << std::endl;
alpar@2389: 
alpar@2389:   switch(ap.files().size()) {
alpar@2389:   case 0:
alpar@2389:     std::cout << "  No file argument was given.\n";
alpar@2389:     break;
alpar@2389:   case 1:
alpar@2389:     std::cout << "  1 file argument was given. It is:\n";
alpar@2389:     break;
alpar@2389:   default:
alpar@2389:     std::cout << "  "
alpar@2389: 	      << ap.files().size() << " file arguments were given. They are:\n";
alpar@2389:   }
alpar@2389:   for(unsigned int i=0;i<ap.files().size();++i)
alpar@2389:     std::cout << "    '" << ap.files()[i] << "'\n";
alpar@2389:   
alpar@2389: }