COIN-OR::LEMON - Graph Library

source: lemon-0.x/demo/arg_parser_demo.cc @ 2552:5f711e4668f5

Last change on this file since 2552:5f711e4668f5 was 2492:387f6ff851ef, checked in by Balazs Dezso, 12 years ago

Adding doc

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1/* -*- C++ -*-
2 *
3 * This file is a part of LEMON, a generic C++ optimization library
4 *
5 * Copyright (C) 2003-2007
6 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
7 * (Egervary Research Group on Combinatorial Optimization, EGRES).
8 *
9 * Permission to use, modify and distribute this software is granted
10 * provided that this copyright notice appears in all copies. For
11 * precise terms see the accompanying LICENSE file.
12 *
13 * This software is provided "AS IS" with no warranty of any kind,
14 * express or implied, and with no claim as to its suitability for any
15 * purpose.
16 *
17 */
18
19///\ingroup demos
20///\file
21///\brief Argument parser demo
22///
23/// This example shows how can the argument parser used.
24///
25/// \include arg_parser.cc
26
27#include <lemon/arg_parser.h>
28
29using namespace lemon;
30int main(int argc, const char **argv)
31{
32  ArgParser ap(argc,argv);
33  int i;
34  std::string s;
35  double d;
36  bool b,sil;
37  bool g1,g2,g3;
38  ap.refOption("n", "an integer input", i, true)
39    .refOption("val", "a double input", d)
40    .synonym("vals","val")
41    .refOption("name", "a string input", s)
42    .refOption("f", "a switch", b)
43    .refOption("nohelp", "", sil)
44    .refOption("gra","Choise A",g1)
45    .refOption("grb","Choise B",g2)
46    .refOption("grc","Choise C",g3)
47    .optionGroup("gr","gra")
48    .optionGroup("gr","grb")
49    .optionGroup("gr","grc")
50    .mandatoryGroup("gr")
51    .onlyOneGroup("gr")
52    .other("infile","The input file")
53    .other("...");
54 
55  ap.parse();
56
57  std::cout << "Parameters of '" << ap.commandName() << "':\n";
58
59  if(ap.given("n")) std::cout << "  Value of -n: " << i << std::endl;
60  if(ap.given("val")) std::cout << "  Value of -val: " << d << std::endl;
61  if(ap.given("name")) std::cout << "  Value of -name: " << s << std::endl;
62  if(ap.given("f")) std::cout << "  -f is given\n";
63  if(ap.given("nohelp")) std::cout << "  Value of -nohelp: " << sil << std::endl;
64
65  switch(ap.files().size()) {
66  case 0:
67    std::cout << "  No file argument was given.\n";
68    break;
69  case 1:
70    std::cout << "  1 file argument was given. It is:\n";
71    break;
72  default:
73    std::cout << "  "
74              << ap.files().size() << " file arguments were given. They are:\n";
75  }
76  for(unsigned int i=0;i<ap.files().size();++i)
77    std::cout << "    '" << ap.files()[i] << "'\n";
78 
79}
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