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1 /* -*- C++ -*- |
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2 * |
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3 * This file is a part of LEMON, a generic C++ optimization library |
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4 * |
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5 * Copyright (C) 2003-2008 |
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6 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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7 * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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8 * |
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9 * Permission to use, modify and distribute this software is granted |
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10 * provided that this copyright notice appears in all copies. For |
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11 * precise terms see the accompanying LICENSE file. |
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12 * |
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13 * This software is provided "AS IS" with no warranty of any kind, |
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14 * express or implied, and with no claim as to its suitability for any |
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15 * purpose. |
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16 * |
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17 */ |
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18 |
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19 ///\ingroup demos |
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20 ///\file |
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21 ///\brief Argument parser demo |
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22 /// |
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23 /// This example shows how can the argument parser used. |
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24 /// |
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25 /// \include arg_parser.cc |
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26 |
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27 #include <lemon/arg_parser.h> |
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28 |
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29 using namespace lemon; |
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30 int main(int argc, const char **argv) |
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31 { |
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32 ArgParser ap(argc,argv); |
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33 int i; |
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34 std::string s; |
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35 double d; |
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36 bool b,sil; |
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37 bool g1,g2,g3; |
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38 ap.refOption("n", "an integer input", i, true) |
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39 .refOption("val", "a double input", d) |
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40 .synonym("vals","val") |
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41 .refOption("name", "a string input", s) |
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42 .refOption("f", "a switch", b) |
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43 .refOption("nohelp", "", sil) |
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44 .refOption("gra","Choise A",g1) |
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45 .refOption("grb","Choise B",g2) |
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46 .refOption("grc","Choise C",g3) |
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47 .optionGroup("gr","gra") |
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48 .optionGroup("gr","grb") |
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49 .optionGroup("gr","grc") |
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50 .mandatoryGroup("gr") |
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51 .onlyOneGroup("gr") |
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52 .other("infile","The input file") |
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53 .other("..."); |
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54 |
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55 ap.parse(); |
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56 |
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57 std::cout << "Parameters of '" << ap.commandName() << "':\n"; |
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58 |
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59 if(ap.given("n")) std::cout << " Value of -n: " << i << std::endl; |
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60 if(ap.given("val")) std::cout << " Value of -val: " << d << std::endl; |
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61 if(ap.given("name")) std::cout << " Value of -name: " << s << std::endl; |
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62 if(ap.given("f")) std::cout << " -f is given\n"; |
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63 if(ap.given("nohelp")) std::cout << " Value of -nohelp: " << sil << std::endl; |
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64 |
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65 switch(ap.files().size()) { |
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66 case 0: |
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67 std::cout << " No file argument was given.\n"; |
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68 break; |
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69 case 1: |
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70 std::cout << " 1 file argument was given. It is:\n"; |
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71 break; |
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72 default: |
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73 std::cout << " " |
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74 << ap.files().size() << " file arguments were given. They are:\n"; |
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75 } |
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76 for(unsigned int i=0;i<ap.files().size();++i) |
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77 std::cout << " '" << ap.files()[i] << "'\n"; |
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78 |
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79 } |