// This illustrates how to change the flag and name start strings.
// Note that these defines need to happen *before* tclap is included!
#define TCLAP_NAMESTARTSTRING "~~"
#define TCLAP_FLAGSTARTSTRING "/"

using namespace TCLAP;
using namespace std;

int main(int argc, char **argv) {
    // Wrap everything in a try block.  Do this every time,
    // because exceptions will be thrown for problems.
    try {

        // Define the command line object.
        CmdLine cmd("Command description message", ' ', "0.9");

        // Define a value argument and add it to the command line.
        ValueArg<string> nameArg("n", "name", "Name to print", true, "homer", "string");
        cmd.add(nameArg);

        // Define a switch and add it to the command line.
        SwitchArg reverseSwitch("r", "reverse", "Print name backwards", false);
        cmd.add(reverseSwitch);

        // Parse the args.
        cmd.parse(argc, argv);

        // Get the value parsed by each arg.
        string name = nameArg.getValue();
        bool reverseName = reverseSwitch.getValue();

        // Do what you intend too...
        if (reverseName) {
            reverse(name.begin(), name.end());
            cout << "My name (spelled backwards) is: " << name << endl;
        }
        else
            cout << "My name is: " << name << endl;


    } catch (ArgException &e)  // catch any exceptions
    { cerr << "error: " << e.error() << " for arg " << e.argId() << endl; }
}