using namespace Options;

Option<bool> verbose(string("-V,--verbose"), false, 
		     string("switch on diagnostic messages"), 
		     false, no_argument);
Option<bool> help(string("-h,--help"), false,
		  string("display this message"),
		  false, no_argument);
Option<float> dof(string("-d,--dof"), 100.0,
		  string("number of degrees of freedom"),
		  true, requires_argument);
Option<string> mask(string("-m,--mask"), string("mask"),
		    string("brain mask volume"),
		    true, requires_argument);
Option<string> resid(string("-r,--res"), string("res4d"),
		     string("4d `residual-of-fit' image"),
		     true, requires_argument);

int main(unsigned int argc, char **argv) {

  OptionParser options("options", 
		       "-d <number> --mask <filename> --res <filename>");

  try {

    options.add(verbose);
    options.add(help);
    options.add(dof);
    options.add(mask);
    options.add(resid);

    for(unsigned int a = options.parse_command_line(argc, argv); a < argc; a++)
      cout << argv[a] << endl;
  
    if(help.value())
      options.usage();

    if(verbose.value()) {
      cout << "verbose = " << verbose.value() << endl;
      cout << "help = " << help.value() << endl;
      cout << "dof = " << dof.value() << endl;
      cout << "mask = " << mask.value() << endl;
      cout << "resid = " << resid.value() << endl;
    }

  } catch(X_OptionError& e) {
    options.usage();
    cerr << endl << e.what() << endl;
  } catch(std::exception &e) {
    cerr << e.what() << endl;
  }    
}