const struct optioninfo *opt_findl(const char *opt) { return find(&opt,"--",oc_long); }
const struct optioninfo *opt_finds(const char **optp) { return find(optp,"-",oc_short); }
-void opt_do(const struct optioninfo *oip, const char *arg) {
+static void noninvert(const struct optioninfo *oip) NONRETURNING;
+static void noninvert(const struct optioninfo *oip) {
+ usageerr("option %s%s%s%s%s may not be inverted",
+ oip->sopt ? "-" : "", oip->sopt ? oip->sopt : "",
+ oip->lopt && oip->sopt ? " / " : "",
+ oip->lopt ? "--" : "", oip->lopt ? oip->lopt : "");
+}
+
+void opt_do(const struct optioninfo *oip, const char *arg, int invert) {
switch (oip->type) {
- case ot_flag: case ot_value:
+ case ot_flag:
+ assert(!arg);
+ *oip->storep= invert ? !oip->value : oip->value;
+ return;
+ case ot_value:
assert(!arg);
+ if (invert) noninvert(oip);
*oip->storep= oip->value;
return;
case ot_func: case ot_funcarg:
- oip->func(oip,0);
+ if (invert) noninvert(oip);
+ oip->func(oip,arg);
return;
default:
abort();