static int
argparse_short_opt(struct argparse *this_, const struct argparse_option *options)
{
for (; options->type != ARGPARSE_OPT_END; options++) {
if (options->short_name == *this_->optvalue) {
this_->optvalue = this_->optvalue[1] ? this_->optvalue + 1 : NULL;
return argparse_getvalue(this_, options, 0);
}
}
return -2;
}
static int
argparse_long_opt(struct argparse *this_, const struct argparse_option *options)
{
for (; options->type != ARGPARSE_OPT_END; options++) {
const char *rest;
int opt_flags = 0;
if (!options->long_name)
continue;
rest = prefix_skip(this_->argv[0] + 2, options->long_name);
if (!rest) {
// Negation allowed?
if (options->flags & OPT_NONEG) {
continue;
}
// Only boolean/bit allow negation.
if (options->type != ARGPARSE_OPT_BOOLEAN && options->type != ARGPARSE_OPT_BIT) {
continue;
}
if (!prefix_cmp(this_->argv[0] + 2, "no-")) {
rest = prefix_skip(this_->argv[0] + 2 + 3, options->long_name);
if (!rest)
continue;
opt_flags |= OPT_UNSET;
} else {
continue;
}
}
if (*rest) {
if (*rest != '=')
continue;
this_->optvalue = rest + 1;
}
return argparse_getvalue(this_, options, opt_flags);
}
return -2;
}
static int
argparse_long_opt(struct argparse *self, const struct argparse_option *options)
{
for (; options->type != ARGPARSE_OPT_END; options++) {
const char *rest;
int opt_flags = 0;
if (!options->long_name)
continue;
rest = prefix_skip(self->argv[0] + 2, options->long_name);
if (!rest) {
// negation disabled?
if (options->flags & OPT_NONEG) {
continue;
}
// only OPT_BOOLEAN/OPT_BIT supports negation
if (options->type != ARGPARSE_OPT_BOOLEAN && options->type !=
ARGPARSE_OPT_BIT) {
continue;
}
if (prefix_cmp(self->argv[0] + 2, "no-")) {
continue;
}
rest = prefix_skip(self->argv[0] + 2 + 3, options->long_name);
if (!rest)
continue;
opt_flags |= OPT_UNSET;
}
if (*rest) {
if (*rest != '=')
continue;
self->optvalue = rest + 1;
}
return argparse_getvalue(self, options, opt_flags | OPT_LONG);
}
return -2;
}
