int
argparse_help_cb(struct argparse *this_, const struct argparse_option *option)
{
(void)option;
argparse_usage(this_);
exit(0);
return 0;
}
int
argparse_help_cb(struct argparse *self, const struct argparse_option *option)
{
(void)option;
argparse_usage(self);
exit(0);
return 0;
}
int
argparse_parse(struct argparse *this_, int argc, const char **argv)
{
this_->argc = argc - 1;
this_->argv = argv + 1;
this_->out = argv;
argparse_options_check(this_->options);
for (; this_->argc; this_->argc--, this_->argv++) {
const char *arg = this_->argv[0];
if (arg[0] != '-' || !arg[1]) {
if (this_->flags & ARGPARSE_STOP_AT_NON_OPTION) {
goto end;
}
// if it's not option or is a single char '-', copy verbatimly
this_->out[this_->cpidx++] = this_->argv[0];
continue;
}
// short option
if (arg[1] != '-') {
this_->optvalue = arg + 1;
switch (argparse_short_opt(this_, this_->options)) {
case -1:
break;
case -2:
goto unknown;
}
while (this_->optvalue) {
switch (argparse_short_opt(this_, this_->options)) {
case -1:
break;
case -2:
goto unknown;
}
}
continue;
}
// if '--' presents
if (!arg[2]) {
this_->argc--;
this_->argv++;
break;
}
// long option
switch (argparse_long_opt(this_, this_->options)) {
case -1:
break;
case -2:
goto unknown;
}
continue;
unknown:
fprintf(stderr, "error: unknown option `%s`\n", this_->argv[0]);
argparse_usage(this_);
exit(0);
}
end:
memmove(this_->out + this_->cpidx, this_->argv,
this_->argc * sizeof(*this_->out));
this_->out[this_->cpidx + this_->argc] = NULL;
return this_->cpidx + this_->argc;
}
