- return (pat->
- not ^ (h->env && h->env->from && (mutt_addr_is_user (h->env->from)
- ||
- (alias_reverse_lookup
- (h->env->from) != NULL)
- || (h->env->from->personal
- && valid_realname (h->env->
- from->
- personal)
- && h->env->from->mailbox)
- )));
+ return (h->env && h->env->from
+ && (mutt_addr_is_user(h->env->from)
+ || alias_reverse_lookup(h->env->from)
+ || (h->env->from->personal
+ && valid_realname(h->env-> from->personal)
+ && h->env->from->mailbox)
+ )) ^ pat->not;