Struct SubjectFallback 

pub struct SubjectFallback<'a> {
    pub reply_re: &'a Regex,
    pub sort_re: bool,
}

mutt’s subject fallback, which runs unless $strict_threads: a thread root whose subject repeats one already in the mailbox hangs under the message carrying it. It is what keeps mail that arrives with no References at all (a notification robot, a list that strips the headers) reading as one thread.

Fields

reply_re: &'a Regex

Compiled $reply_regexp: what marks a subject as a reply, and what is taken off it to compare with (mutt’s real_subj).

sort_re: bool

mutt’s $sort_re: only a root whose subject carries the reply prefix is attached. Unset, any equal subject is, which groups unrelated mail sharing a subject like “hi”.

Trait Implementations

impl<'a> Clone for SubjectFallback<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Copy for SubjectFallback<'a>