Question: Can you implement subcomands using with this library?

[jr-tutor]

Hi,

does your library support subcomands such as used in GIT or Argparse?

e.g.

git add *
git --help clone
etc.

Thank you

[cofyc]

no builtin support, but it's easy to implement, e.g.

struct cmd_struct {
    const char *cmd;
    int len;
    int (*fn) (int, const char **);
    const char *help;
};

static struct cmd_struct commands[] = { 
    {"sub", 3, sub_cmd, NULL},
    ...
}

argc = argparse_parse(&argparse, argc, argv);
if (argc < 1) {
    // show help
}   

/* Try to run command with args provided. */
struct cmd_struct *cmd = NULL;
for (int i = 0; i < ARRAY_SIZE(commands); i++) {
    if (!strcmp(commands[i].cmd, argv[0])) {
        cmd = &commands[i];
    }   
}  

// run the command

[a-random-lemurian]

Are there plans to add subcommand support to the library?

P.S. Oh, there was a closed issue about subcommands.

[cofyc]

no, however you can follow this example

[a-random-lemurian]

no, however you can follow this example

that example just causes a segfault when I cmd->fn(argc, argv), what should I put in place of // run the command?

P.S I finally got a working example.... I'm gonna push it real quick
P.S[2] Here's the working example https://github.com/a-random-lemurian/uselinux/blob/main/src/rmbloat/rmbloat.c

[cofyc]

I also create a full example here: https://github.com/cofyc/argparse/blob/master/tests/subcommands.c

[a-random-lemurian]

I also create a full example here: https://github.com/cofyc/argparse/blob/master/tests/subcommands.c

LGTM, but unfortunately it doesn't say anything about adding options to the subcommands themselves.

[cofyc]

If you need to parse arguments for subcommand, you can init and config argparse to parse arguments in the same way as in the main program.

[cofyc]

the example is updated, see the latest version.

Note that ARGPARSE_STOP_AT_NON_OPTION must be passed to argparse_init in the main program.