Step 2. Generate the C code

$ python -m docopt_c -o docopt.c example.docopt

or by using pipe

$ cat example.docopt | python -m docopt_c > docopt.c

Step 3. Include the generated docopt.c into your program

#include "docopt.h"

int main(int argc, char *argv[])
{
    struct DocoptArgs args = docopt(argc, argv, /* help */ 1, /* version */ "2.0rc2");

    puts("Commands");
    printf("\tmine == %s\n", args.mine ? "true" : "false");
    printf("\tmove == %s\n", args.move ? "true" : "false");
    printf("\tcreate == %s\n", args.create ? "true" : "false");
    printf("\tremove == %s\n", args.remove ? "true" : "false");
    printf("\tset == %s\n", args.set ? "true" : "false");
    printf("\tship == %s\n", args.ship ? "true" : "false");
    printf("\tshoot == %s\n", args.shoot ? "true" : "false");
    puts("Arguments");
    printf("\tx == %s\n", args.x);
    printf("\ty == %s\n", args.y);
    puts("Flags");
    printf("\t--drifting == %s\n", args.drifting ? "true" : "false");
    printf("\t--help == %s\n", args.help ? "true" : "false");
    printf("\t--moored == %s\n", args.moored ? "true" : "false");
    printf("\t--version == %s\n", args.version ? "true" : "false");
    puts("Options");
    printf("\t--speed == %s\n", args.speed);

    return EXIT_SUCCESS;
}

Step 4. Profit!

$ c99 example.c -o example.out
$ ./example.out mine --drifting --speed=20
Commands
    mine == true
    move == false
    create == false
    remove == false
    set == false
    ship == false
    shoot == false
Arguments
    x == (null)
    y == (null)
Flags
    --drifting == true
    --help == false
    --moored == false
    --version == false
Options
    --speed == 20

Development

See the Python version’s page for more info on developing.