Question: Can you implement subcomands using with this library?
jr-tutor opened this issue · 8 comments
Hi,
does your library support subcomands such as used in GIT or Argparse?
e.g.
git add *
git --help clone
etc.
Thank you
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
Are there plans to add subcommand support to the library?
P.S. Oh, there was a closed issue about subcommands.
no, however you can follow this example
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
I also create a full example here: https://github.com/cofyc/argparse/blob/master/tests/subcommands.c
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.
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.
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.