| pktools 2.6.7 Processing Kernel for geospatial data

pktestOption.cc
1/**********************************************************************
2 pktestOption: example program how to use class Optionpk pktestOption.cc
3 Copyright (C) 2008-2013 Pieter Kempeneers
4
5 This file is part of pktools
6
7 pktools is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10(at your option) any later version.
11
12 pktools is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with pktools. If not, see <http://www.gnu.org/licenses/>.
19***********************************************************************/
20#include <iostream>
21#include <string>
22#include "base/Optionpk.h"
23
24 int main(int argc, char *argv[])
25{
26 Optionpk<std::string> foo_opt("f","foo","command line option **foo** of type string can be invoked with either short (f) or long (foo) option","defaultString");
27 Optionpk<int> bar_opt("\0","bar","command line option **bar** of type int has no short option");//bar will only be visible in long help (hide=1)
28 Optionpk<bool> easterEgg_opt("egg","egg","this help information is useless");//this option will not be shown in help (hide=2)
29
30 bar_opt.setHide(1);//option only visible with long help (--help)
31 easterEgg_opt.setHide(2);//hidden option
32
33 bool doProcess;//stop process when program was invoked with help option (-h --help)
34 try{
35 doProcess=foo_opt.retrieveOption(argc,argv);
36 bar_opt.retrieveOption(argc,argv);
37 easterEgg_opt.retrieveOption(argc,argv);
38 }
39 catch(std::string predefinedString){//command line option contained license or version
40 std::cout << predefinedString << std::endl;//report the predefined string to stdout
41 exit(0);//stop processing
42 }
43 if(!doProcess){//command line option contained help option
44 std::cout << "short option -h shows basic options only, use long option --help to show all options" << std::endl;//provide extra details for help to the user
45 exit(0);//stop processing
46 }
47 std::cout << "foo: ";
48 for(int ifoo=0;ifoo<foo_opt.size();++ifoo){
49 std::cout << foo_opt[ifoo] << " ";
50 }
51 std::cout << std::endl;
52 std::cout << foo_opt << std::endl;//short cut for code above
53
54 if(bar_opt[0]>0)
55 std::cout << "long option for bar was used with a positive value" << std::endl;
56
57 if(easterEgg_opt[0])
58 std::cout << "How did you find this option -egg or --egg? Not through the help info!" << std::endl;
59}
Optionpk
Definition: Optionpk.h:107