Method has_prefix

regex/src/dfa.rs:1582–1586

Returns true if there is a prefix we can quickly search for.

(&self)

    /// Returns true if there is a prefix we can quickly search for.
    fn has_prefix(&self) -> bool {
        !self.prog.is_reverse
        && !self.prog.prefixes.is_empty()
        && !self.prog.is_anchored_start
    }

    /// Sets the STATE_START bit in the given state pointer if and only if
    /// we have a prefix to scan for.