[85] | 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 | } |
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