flagTest.c

int main(int argc, char *argv[]){
    char c;
    int error, kacho, exception, capitalized, printswitch;
    error = kacho = exception = capitalized = printswitch = 0;

    if(argc > 1){
        while(!error && (c = (*++argv)[0]) == '-'){
            switch((*argv)[1]){
                case 'c':
                    if((*argv)[2] == '\0')
                        capitalized = 1;
                    else if((*argv)[2] == 'x' && (*argv)[3] == '\0')
                        kacho = 1;
                    else
                        printUsage(&error);
                    break;

                case 'x':
                    if((*argv)[2] == '\0')
                        exception = 1;
                    else
                        printUsage(&error);
                    break;

                default:
                    printUsage(&error);
                    break;
            }
        }

        if(!error){
            do{
               if(capitalized)
                  capitalize(*argv);
               if(!exception || (printswitch = !printswitch))
                  printf("%s ", *argv);

            }while(*++argv);

            if(kacho)
               printf("Kacho on!");
            printf("\n");
        }
    }
    else
        printUsage(&error);

   return 0;
}

void capitalize(char *s){
    while(*s != '\0')
        if(islower(*s))
            *(s++) += ('a' - 'A');
}

void printUsage(int *n){
    printf("I'll write this part later\n");
    *n = 1;
}