DouKaku?

#include <iostream>
#include <google/gflags.h>

DEFINE_bool( o, false, "(required)" );
DEFINE_bool( q, false, "quote(optional)" );
DEFINE_int32( d, 0, "debug(required) {0|1|2}" );

using namespace std;

int main ( int argc, char *argv[] ){

   google::SetUsageMessage("-o [-q] [-d{0|1|2}] str1 [str2 ...] ");
   google::ParseCommandLineFlags(&argc, &argv, true);

   if( !FLAGS_o || FLAGS_d < 0 || FLAGS_d > 2 || argc < 2 ){
      google::ShowUsageWithFlags(argv[0]);
      return 1;
   }

   cout << "[option]" << endl
        << "o(output): " << (FLAGS_o ? "ON" : "OFF") << endl
        << "q(quote): " << (FLAGS_q ? "ON" : "OFF") << endl
        << "d(debug): " << FLAGS_d  << endl
        << endl
        << "[parameter]" << endl
        << "given " << (argc-1)  << endl;

   for( int i = 1; i < argc; i++ ){
      cout << i << ": " << argv[i] << endl;
   }

   return 0;
}